STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.9 4.6 9.1 14.5 20.2 23.3 26.4 26.2 22.8 15.2 12.1 9.2 16.0 MINIMUN AIR TEMPERATURE (C) 4.3 1.9 6.2 10.6 16.6 19.3 22.1 21.4 19.4 13.3 9.7 6.2 12.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 11 24 22 10 0 0 0 67 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 2 10 0 0 0 0 0 0 0 0 0 0 12 TEMPERATURE RECORDS LOWEST(C) -1.0 -3.0 2.0 6.0 13.0 16.0 17.0 18.0 15.0 8.0 6.0 2.0 -3.0 DAY 27 9 14 3 11 28 1 16 27 31 28 25 MAXIMUM AIR TEMPERATURE (C) ***** ***** ***** 17.7 23.3 26.4 ***** ***** ***** ***** ***** ***** ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** **** 0 0 2 **** **** **** **** **** **** **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** **** 0 0 0 **** **** **** **** **** **** **** TEMPERATURE RECORDS HIGHEST(C)***** ***** ***** 24.0 27.0 30.0 ***** ***** ***** ***** ***** ***** ***** DAY ** ** ** 26 24 24 ** ** ** ** ** ** DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** ***** 7.1 6.7 7.1 ***** ***** ***** ***** ***** ***** ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** ***** 14.1 20.0 22.8 ***** ***** ***** ***** ***** ***** ***** COOLING DEG. DAYS(BASE 21 0C) 0.0 ****** 0.0 0.0 9.5 65.0 0.0 0.0 0.0 0.0 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C) 0.0 ****** 0.0 116.0 2.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ****** DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 205.1 218.5 49.0 19.5 32.5 89.0 8.0 44.5 628.0 446.0 228.0 146.0 2114.1 DAYS WITH PRECIPITATION >=10 8 8 2 1 1 3 0 1 10 13 9 7 63 DAYS WITH PRECIPITATION >= 5 8 9 3 1 2 3 1 1 14 21 11 10 84 DAYS WITH PRECIPITATION >= 1 10 14 5 4 3 5 2 4 16 24 13 12 112 DAYS WITH PRECIPITATION 14 16 5 4 5 7 2 5 19 25 16 15 133 GREATEST DAILY PRECIPITATION 48.0 47.0 18.0 12.0 24.0 45.0 7.0 38.0 130.0 75.0 53.0 32.0 130.0 DAY 30 6 13 20 2 27 24 6 12 14 9 23 DAY WITH THUNDER STORM 0 0 0 1 1 3 0 1 7 1 0 0 14 DAYS WITH SNOW OR SLEET 0 3 0 0 0 0 0 0 0 0 0 0 3 DAYS WITH DUST 1 0 1 2 0 0 0 0 1 0 0 1 6 WIND DIRECTION (PREVAILING) 315 360 90 360 360 360 90 90 360 315 270 315 360 PREVAILING WIND SPEED(KNOTS) 10.0 8.1 5.0 4.7 5.3 7.0 5.5 5.3 7.5 13.3 3.4 7.0 6.6 PREVAILING WIND PERCENT 19.0 25.0 19.8 25.4 25.8 26.7 21.0 20.6 21.7 32.3 25.0 27.0 20.4 CALMS PERCENT OF WIND 0.4 0.0 0.8 1.7 0.0 0.0 1.6 0.8 0.4 0.4 0.0 0.0 0.5 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 312 329 43 29 48 353 43 43 356 316 334 313 347 VECTOR WIND MAGNITUDE(KNOTS) 2.5 4.0 1.1 1.7 2.9 2.5 1.9 1.6 3.5 7.2 2.0 2.6 2.3 WIND STEADINESES (MEAN %) 35.2 63.5 28.2 42.5 60.4 43.1 42.2 37.2 53.8 80.9 43.5 54.2 41.8 WIND SPEED (MEAN KNOTS) 7.1 6.3 3.9 4.0 4.8 5.8 4.5 4.3 6.5 8.9 4.6 4.8 5.5 FASTEST WIND DIRECTION 360 360 290 360 50 360 310 310 310 340 310 360 360 FASTEST WIND SPEED (KNOTS) 52 44 18 20 24 24 20 18 44 47 24 37 52 DAY 23 6 12 19 2 27 24 6 26 8 1 6 DAYS WITH SKY CLEAR (0-2)/8 8 4 6 15 12 14 25 19 10 0 2 8 123 DAYS WITH P.CLOUDY (3-6)/8 8 8 7 7 12 9 4 9 5 2 8 8 87 DAYS WITH CLOUDY (7-8)/8 15 16 16 8 7 7 2 3 15 29 20 15 153 DAYS WITH VISIBILITY =< 2 KM 7 9 10 5 2 2 1 2 11 21 11 6 87 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.2 8.9 8.8 11.7 17.2 21.9 25.4 26.5 23.5 20.9 12.6 9.7 16.2 MINIMUN AIR TEMPERATURE (C) 4.5 6.2 ***** 8.9 13.7 18.5 21.4 21.4 19.0 16.7 9.1 6.7 ***** DAYS WITH MINIMUM TEMP. >=21 0 0 **** 0 1 6 24 23 5 1 0 0 **** DAYS WITH MINIMUM TEMP. <=-4 0 0 **** 0 0 0 0 0 0 0 0 0 **** DAYS WITH FREEZING MIN.<= 0 0 0 **** 0 0 0 0 0 0 0 1 0 **** TEMPERATURE RECORDS LOWEST(C) 1.0 3.0 ***** 4.0 6.0 16.0 18.0 19.0 15.0 12.0 0.0 2.0 ***** DAY 1 13 ** 15 12 2 13 22 19 31 15 14 MAXIMUM AIR TEMPERATURE (C) ***** ***** ***** ***** 20.2 25.1 29.2 31.0 27.3 24.3 15.8 11.8 ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** **** **** 1 0 16 24 4 0 1 0 **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** **** **** 0 0 0 0 0 0 0 0 **** TEMPERATURE RECORDS HIGHEST(C)***** ***** ***** ***** 31.0 29.0 33.0 34.0 31.0 28.0 33.0 16.0 ***** DAY ** ** ** ** 20 28 25 24 4 2 4 5 DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** ***** ***** 6.5 6.6 7.8 9.6 8.3 7.6 6.7 5.1 ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** ***** ***** 17.0 21.8 25.3 26.2 23.1 20.5 12.5 9.3 ***** COOLING DEG. DAYS(BASE 21 0C) 0.0 ****** ****** 0.0 6.0 36.5 133.5 161.0 71.0 22.0 3.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C) 0.0 ****** ****** 0.0 61.0 0.0 0.0 0.0 0.5 8.0 176.5 270.0 ****** DEWPOINT (MEAN C) ***** ***** ***** ***** 15.9 18.0 20.4 21.0 19.3 17.5 10.0 8.0 ***** MIXING RATIO (G/KG) ****** ****** ****** ****** 11.37 13.06 15.21 15.77 14.07 12.60 7.98 6.66 ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** 18.20 20.84 24.15 25.03 22.52 20.24 12.93 10.87 ****** SATURATION DEF. (HPA) ****** ****** ****** ****** 4.84 5.81 8.75 9.99 6.90 4.86 2.65 1.33 ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** 80 79 75 73 78 82 85 89 *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** 92 90 88 87 91 93 94 95 *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** 66 67 61 59 65 68 72 80 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** 89 89 86 83 88 92 89 92 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** 71 72 65 63 69 71 77 84 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** 79 76 70 70 74 80 85 89 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 109.5 76.6 201.0 190.5 55.7 187.5 56.0 68.0 162.0 107.0 569.5 104.6 1887.9 DAYS WITH PRECIPITATION >=10 6 2 6 4 2 1 3 2 4 3 11 4 48 DAYS WITH PRECIPITATION >= 5 6 4 7 10 4 2 5 2 5 5 12 5 67 DAYS WITH PRECIPITATION >= 1 9 7 12 15 10 5 5 3 7 6 14 8 101 DAYS WITH PRECIPITATION 11 11 13 17 14 6 6 5 8 8 15 12 126 GREATEST DAILY PRECIPITATION 22.0 41.0 46.0 53.0 20.0 173.0 21.0 51.0 53.0 43.0 136.0 34.0 173.0 DAY 10 13 8 13 11 21 10 15 26 29 17 11 DAY WITH THUNDER STORM 0 0 0 2 7 5 2 1 0 4 0 0 21 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 1 0 1 DAYS WITH DUST 0 1 1 0 1 0 0 1 0 0 0 0 4 WIND DIRECTION (PREVAILING) 315 315 90 90 90 90 90 45 360 360 360 270 90 PREVAILING WIND SPEED(KNOTS) 7.0 6.6 5.3 4.8 5.0 5.8 3.8 4.0 7.2 9.6 8.7 2.4 4.4 PREVAILING WIND PERCENT 34.3 24.6 21.0 22.9 24.6 31.3 30.2 29.0 19.2 28.6 21.7 29.0 17.8 CALMS PERCENT OF WIND 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.8 0.4 0.0 0.0 0.1 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 314 357 1 14 28 50 45 33 33 352 310 301 4 VECTOR WIND MAGNITUDE(KNOTS) 2.8 2.0 2.3 2.6 2.7 3.1 1.9 2.4 2.3 2.5 3.8 1.4 2.0 WIND STEADINESES (MEAN %) 57.1 40.0 38.3 45.6 54.0 60.8 43.2 53.3 43.4 51.0 58.5 43.7 40.0 WIND SPEED (MEAN KNOTS) 4.9 5.0 6.0 5.7 5.0 5.1 4.4 4.5 5.3 4.9 6.5 3.2 5.0 FASTEST WIND DIRECTION 310 250 290 310 310 90 290 360 50 360 270 310 360 FASTEST WIND SPEED (KNOTS) 20 29 44 25 30 16 21 24 44 58 46 18 58 DAY 9 4 4 23 20 2 13 14 17 30 18 8 DAYS WITH SKY CLEAR (0-2)/8 6 3 5 2 7 15 19 20 17 15 4 7 120 DAYS WITH P.CLOUDY (3-6)/8 10 12 11 4 13 10 4 7 7 8 10 7 103 DAYS WITH CLOUDY (7-8)/8 15 13 14 24 11 5 8 4 6 8 16 17 141 DAYS WITH VISIBILITY =< 2 KM 10 7 17 14 9 1 3 3 4 7 13 8 96 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 1014.5 1014.6 1012.4 1012.6 1018.5 1020.5 1024.9 1026.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 1033.9 1028.0 1020.3 1022.5 1030.5 1031.1 1043.1 1042.9 ****** DAY-HOUR **-** **-** **-** **-** 16-12 2- 6 14- 3 15- 9 18- 6 30- 9 16- 6 11- 6 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 1004.0 1004.2 1004.7 1002.3 1008.0 1008.6 1006.6 1016.7 ****** DAY-HOUR **-** **-** **-** **-** 18-12 25-15 26-15 8- 0 24-21 6- 3 4-12 27- 9 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1011.1 1011.1 1008.9 1009.2 1015.0 1017.0 1021.5 1022.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1030.4 1024.5 1016.8 1019.0 1027.0 1027.6 1039.6 1039.4 ****** DAY-HOUR **-** **-** **-** **-** 16-12 2- 6 14- 3 15- 9 18- 6 30- 9 16- 6 11- 6 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1000.6 1000.8 1001.3 998.9 1004.6 1005.2 1003.2 1013.2 ****** DAY-HOUR **-** **-** **-** **-** 18-12 25-15 26-15 8- 0 24-21 6- 3 4-12 27- 9 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1011.0 1011.5 1009.4 1009.5 1015.5 1017.4 1021.7 1023.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1024.0 1024.9 1017.2 1018.7 1027.4 1027.9 1039.7 1039.6 ****** DAY-HOUR **-** **-** **-** **-** 21- 6 2- 6 14- 3 25-21 18- 6 30- 9 16- 6 11- 6 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1001.0 1001.2 1001.7 999.3 1005.0 1005.6 1003.6 1013.5 ****** DAY-HOUR **-** **-** **-** **-** 18-12 25-15 27- 3 8- 0 25- 0 6- 3 4-12 27- 9 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 1013.7 1014.9 1012.4 1012.2 1018.4 1020.5 1025.0 1026.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 1024.3 1027.3 1019.9 1021.6 1027.9 1028.2 1041.8 1037.6 ****** DAY ** ** ** ** 22 2 14 26 18 30 17 12 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 1005.8 1006.0 1004.7 1002.3 1008.0 1009.2 1007.7 1017.8 ****** DAY ** ** ** ** 18 26 27 8 25 6 4 27 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1010.2 1011.4 1008.9 1008.8 1015.0 1017.0 1021.5 1022.9 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1020.8 1023.8 1016.4 1018.1 1024.4 1024.7 1038.3 1034.1 ****** DAY ** ** ** ** 22 2 14 26 18 30 17 12 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1002.4 1002.6 1001.3 998.9 1004.6 1005.8 1004.3 1014.3 ****** DAY ** ** ** ** 18 26 27 8 25 6 4 27 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1010.6 1011.8 1009.3 1009.2 1015.4 1017.4 1021.8 1023.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1021.2 1024.2 1016.8 1018.5 1024.8 1025.0 1038.5 1034.3 ****** DAY ** ** ** ** 22 2 14 26 18 30 17 12 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1002.7 1003.0 1001.7 999.3 1005.0 1006.2 1004.6 1014.6 ****** DAY ** ** ** ** 18 26 27 8 25 6 4 27 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 1014.1 1014.7 1012.6 1012.9 1018.6 1020.6 1024.9 1026.5 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 1025.8 1027.8 1020.3 1021.1 1028.6 1028.8 1040.9 1040.6 ****** DAY ** ** ** ** 21 3 14 26 18 30 17 7 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 1004.9 1005.7 1004.7 1008.9 1009.2 1008.6 1007.2 1016.8 ****** DAY ** ** ** ** 18 25 27 8 25 6 4 27 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1010.6 1011.3 1009.1 1009.5 1015.2 1017.1 1021.4 1023.1 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1022.3 1024.3 1016.8 1017.6 1025.1 1025.3 1037.4 1037.1 ****** DAY ** ** ** ** 21 3 14 26 18 30 17 7 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1001.5 1002.3 1001.3 1005.5 1005.8 1005.2 1003.8 1013.3 ****** DAY ** ** ** ** 18 25 27 8 25 6 4 27 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1011.0 1011.7 1009.5 1009.9 1015.6 1017.5 1021.7 1023.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1022.7 1024.7 1017.2 1018.0 1025.5 1025.6 1037.6 1037.4 ****** DAY ** ** ** ** 21 3 14 26 18 30 17 7 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1001.8 1002.7 1001.7 1005.9 1006.2 1005.6 1004.1 1013.6 ****** DAY ** ** ** ** 18 25 27 8 25 6 4 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 1015.0 1015.2 1013.1 1014.0 1019.6 1021.5 1025.9 1027.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 1027.2 1028.0 1020.1 1021.7 1030.5 1031.0 1043.1 1042.9 ****** DAY ** ** ** ** 21 2 14 26 18 30 16 11 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 1004.8 1006.2 1005.3 1008.7 1010.3 1012.5 1009.1 1017.6 ****** DAY ** ** ** ** 18 25 27 24 15 14 4 27 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1011.5 1011.8 1009.7 1010.5 1016.1 1018.0 1022.4 1023.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1023.7 1024.5 1016.6 1018.2 1027.0 1027.5 1039.6 1039.4 ****** DAY ** ** ** ** 21 2 14 26 18 30 16 11 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1001.4 1002.8 1001.9 1005.3 1006.9 1009.1 1005.7 1014.1 ****** DAY ** ** ** ** 18 25 27 24 15 14 4 27 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1011.9 1012.2 1010.1 1010.7 1016.5 1018.4 1022.7 1024.0 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1024.0 1024.9 1017.0 1018.6 1027.4 1027.8 1039.7 1039.6 ****** DAY ** ** ** ** 21 2 14 26 18 30 16 11 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1001.7 1003.2 1002.3 1005.7 1007.3 1009.5 1006.0 1014.4 ****** DAY ** ** ** ** 18 25 27 24 15 14 4 27 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 1015.7 1015.0 1012.9 1013.4 1018.8 1020.9 1025.1 1026.5 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 1033.7 1027.2 1019.8 1022.5 1029.2 1031.1 1043.0 1042.5 ****** DAY ** ** ** ** 16 3 14 15 18 30 16 11 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 1004.7 1006.1 1005.2 1006.8 1008.9 1011.6 1007.5 1016.7 ****** DAY ** ** ** ** 18 25 27 24 15 14 4 27 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1012.2 1011.6 1009.5 1009.9 1015.4 1017.4 1021.6 1023.0 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1030.2 1023.7 1016.3 1019.0 1025.7 1027.6 1039.5 1039.0 ****** DAY ** ** ** ** 16 3 14 15 18 30 16 11 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1001.3 1002.7 1001.8 1003.4 1005.5 1008.2 1004.1 1013.2 ****** DAY ** ** ** ** 18 25 27 24 15 14 4 27 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1011.4 1012.0 1009.9 1010.1 1015.8 1017.8 1021.9 1023.2 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1023.6 1024.1 1016.7 1017.4 1026.1 1027.9 1039.6 1039.2 ****** DAY ** ** ** ** 21 3 14 26 18 30 16 11 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1001.7 1003.1 1002.3 1003.8 1005.9 1008.6 1004.5 1013.5 ****** DAY ** ** ** ** 18 25 27 24 15 14 4 27 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 1014.8 1014.1 1012.2 1012.3 1017.9 1020.0 1024.3 1025.6 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 1033.9 1025.9 1018.9 1021.0 1027.4 1030.3 1041.0 1040.7 ****** DAY ** ** ** ** 16 2 13 15 18 30 14 11 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 1004.0 1005.0 1004.8 1005.2 1009.5 1011.1 1006.6 1016.8 ****** DAY ** ** ** ** 18 25 26 24 15 14 4 27 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1011.3 1010.7 1008.7 1008.9 1014.4 1016.5 1020.8 1022.1 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1030.4 1022.4 1015.4 1017.5 1023.9 1026.8 1037.5 1037.2 ****** DAY ** ** ** ** 16 2 13 15 18 30 14 11 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1000.6 1001.6 1001.4 1001.8 1006.1 1007.7 1003.2 1013.3 ****** DAY ** ** ** ** 18 25 26 24 15 14 4 27 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1010.4 1011.1 1009.1 1009.0 1014.9 1016.9 1021.1 1022.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1022.2 1022.8 1015.8 1017.1 1024.3 1027.1 1037.7 1037.4 ****** DAY ** ** ** ** 21 2 13 25 18 30 14 11 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1001.0 1002.0 1001.8 1002.2 1006.5 1008.0 1003.6 1013.6 ****** DAY ** ** ** ** 18 25 26 24 15 28 4 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 1014.8 1013.7 1011.7 1011.9 1017.9 1019.9 1024.5 1025.9 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 1033.9 1026.6 1020.0 1020.8 1026.7 1029.4 1041.6 1040.4 ****** DAY ** ** ** ** 16 1 13 15 18 30 14 11 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 1005.4 1004.2 1004.7 1003.5 1008.5 1011.0 1007.5 1018.1 ****** DAY ** ** ** ** 18 25 26 24 24 5 4 10 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1011.4 1010.3 1008.2 1008.5 1014.5 1016.5 1021.0 1022.5 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1030.4 1023.1 1016.5 1017.3 1023.2 1025.9 1038.1 1036.9 ****** DAY ** ** ** ** 16 1 13 15 18 30 14 11 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1002.0 1000.8 1001.3 1000.1 1005.1 1007.6 1004.1 1014.6 ****** DAY ** ** ** ** 18 25 26 24 24 5 4 10 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1010.5 1010.7 1008.7 1008.6 1014.9 1016.8 1021.3 1022.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1022.4 1023.5 1016.9 1017.2 1023.6 1026.2 1038.3 1037.1 ****** DAY ** ** ** ** 21 1 13 25 18 30 14 11 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1002.3 1001.2 1001.7 1000.5 1005.5 1008.0 1004.5 1014.9 ****** DAY ** ** ** ** 18 25 26 24 24 5 4 10 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 1014.2 1014.3 1012.1 1012.1 1018.4 1020.2 1024.9 1026.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 1026.5 1027.7 1019.9 1021.7 1027.1 1028.0 1042.0 1039.9 ****** DAY ** ** ** ** 21 1 13 25 18 30 15 11 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 1007.5 1005.0 1004.8 1004.6 1008.2 1010.5 1008.5 1018.8 ****** DAY ** ** ** ** 18 25 26 24 24 5 3 27 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1010.8 1010.9 1008.7 1008.7 1014.9 1016.7 1021.4 1022.7 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1023.0 1024.2 1016.4 1018.2 1023.6 1024.5 1038.5 1036.4 ****** DAY ** ** ** ** 21 1 13 25 18 30 15 11 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1004.1 1001.6 1001.4 1001.2 1004.8 1007.1 1005.1 1015.3 ****** DAY ** ** ** ** 18 25 26 24 24 5 3 27 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1011.4 1011.3 1009.1 1009.1 1015.3 1017.1 1021.7 1022.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1023.3 1024.6 1016.8 1018.6 1024.0 1024.8 1038.7 1036.6 ****** DAY ** ** ** ** 21 1 13 25 18 30 16 11 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1004.4 1002.0 1001.8 1001.7 1005.2 1007.5 1005.4 1015.6 ****** DAY ** ** ** ** 18 25 26 24 24 5 3 27 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 1014.0 1014.6 1012.3 1012.3 1018.4 1020.4 1025.1 1026.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 1025.0 1027.3 1019.7 1021.8 1027.4 1027.9 1042.6 1038.7 ****** DAY ** ** ** ** 21 1 13 25 18 2 16 11 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 1007.4 1005.3 1004.8 1006.5 1008.0 1009.7 1008.3 1019.3 ****** DAY ** ** ** ** 18 27 26 24 24 5 3 9 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1010.6 1011.1 1008.9 1008.9 1015.0 1016.9 1021.7 1022.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1021.5 1023.8 1016.2 1018.3 1023.9 1024.4 1039.1 1035.2 ****** DAY ** ** ** ** 21 1 13 25 18 2 16 11 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1004.0 1001.9 1001.4 1003.1 1004.6 1006.3 1004.9 1015.8 ****** DAY ** ** ** ** 18 27 26 24 24 5 3 9 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1011.0 1011.5 1009.3 1009.3 1015.4 1017.3 1021.9 1023.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1021.8 1024.2 1016.6 1018.7 1024.3 1024.8 1039.3 1035.4 ****** DAY ** ** ** ** 21 1 13 25 18 2 16 11 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1004.4 1002.3 1001.8 1003.6 1005.0 1006.7 1005.2 1016.1 ****** DAY ** ** ** ** 18 27 26 24 24 5 3 9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.8 10.1 8.9 13.0 18.4 24.4 25.5 26.4 22.0 17.6 10.6 5.6 16.0 MINIMUN AIR TEMPERATURE (C) 5.3 6.5 5.6 10.5 14.8 20.0 21.7 21.5 18.3 14.6 8.2 2.5 12.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 17 20 22 5 0 0 0 64 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 0 0 0 0 0 0 0 0 0 4 4 TEMPERATURE RECORDS LOWEST(C) 2.0 1.0 2.0 7.0 10.0 14.0 18.0 18.0 14.0 8.0 2.0 -1.0 -1.0 DAY 2 3 9 1 4 9 1 1 26 26 27 22 MAXIMUM AIR TEMPERATURE (C) 11.6 13.8 11.9 15.9 22.0 28.4 29.1 30.4 25.6 20.5 13.1 8.7 19.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 1 13 16 24 6 0 0 0 60 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.0 26.0 28.0 22.0 30.0 33.0 33.0 33.0 32.0 26.0 25.0 15.0 33.0 DAY 30 17 12 30 7 15 18 28 2 7 17 7 DIF. BETWEEN (MAX.-MIN.) (C) 6.3 7.3 6.3 5.4 7.2 8.4 7.4 8.9 7.3 5.9 4.9 6.2 6.8 MEAN DAILY TEMP. (MDT) (C) 8.4 10.1 8.8 13.2 18.4 24.2 25.4 25.9 21.9 17.5 10.6 5.6 15.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 4.5 99.0 137.5 152.5 45.5 1.5 0.0 0.0 440.5 HEATING DEG. DAYS(BASE 18 0C) 296.5 220.5 286.0 144.0 26.0 0.0 0.0 0.0 0.5 51.0 221.0 384.0 1629.5 DEWPOINT (MEAN C) 6.3 6.6 6.0 10.2 14.6 18.8 20.1 21.5 19.1 14.9 8.3 3.5 12.5 MIXING RATIO (G/KG) 5.95 6.11 5.81 7.77 10.50 13.76 14.90 16.28 13.97 10.67 6.89 4.81 9.78 VAPOUR PRESSURE (HPA) 9.67 9.89 9.44 12.59 16.86 21.91 23.69 25.83 22.34 17.25 11.23 7.89 15.72 SATURATION DEF. (HPA) 1.83 2.72 2.29 2.61 4.64 9.17 9.41 9.06 4.63 3.35 1.91 1.30 4.41 RELATIVE HUMIDITY (MEAN %) 86 82 84 84 80 72 74 76 84 85 87 87 82 RELATIVE HUMIDITY (MAX. %) 94 94 94 93 92 88 90 89 94 95 94 94 93 RELATIVE HUMIDITY (MIN. %) 75 64 70 72 66 56 57 61 72 71 78 76 68 RELATIVE HUMIDITY (MEAN% 03UTC) 90 89 90 89 87 85 81 86 91 91 89 91 88 RELATIVE HUMIDITY (MEAN% 09UTC) 80 73 76 74 70 60 62 64 75 77 82 80 73 RELATIVE HUMIDITY (MEAN% 15UTC) 84 80 81 83 77 66 67 72 81 83 88 87 79 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 57.5 50.5 298.1 31.1 32.0 0.0 100.0 23.0 432.5 345.0 542.1 309.0 2220.8 DAYS WITH PRECIPITATION >=10 2 1 11 0 1 0 4 1 9 9 16 10 64 DAYS WITH PRECIPITATION >= 5 5 3 16 3 1 0 5 2 11 12 18 14 90 DAYS WITH PRECIPITATION >= 1 9 5 18 8 6 0 9 4 12 16 21 19 127 DAYS WITH PRECIPITATION 13 5 22 13 7 0 11 5 13 16 24 19 148 GREATEST DAILY PRECIPITATION 11.0 31.0 82.0 8.0 20.0 0.0 35.0 15.0 92.0 61.0 84.0 61.0 92.0 DAY 8 12 24 26 27 ** 2 1 4 26 5 21 DAY WITH THUNDER STORM 0 0 0 2 7 3 2 1 4 1 1 0 21 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 1 1 DAYS WITH DUST 0 0 0 0 1 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 315 315 360 360 360 45 45 45 360 360 315 225 360 PREVAILING WIND SPEED(KNOTS) 5.1 5.9 8.5 4.0 4.6 3.9 3.3 3.3 7.5 6.9 8.6 2.9 6.6 PREVAILING WIND PERCENT 24.6 19.6 38.7 26.3 29.0 28.8 26.2 34.7 36.7 33.9 34.2 20.6 24.5 CALMS PERCENT OF WIND 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 1.2 0.2 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 306 332 325 7 19 6 328 4 346 340 309 301 330 VECTOR WIND MAGNITUDE(KNOTS) 1.9 1.9 4.3 1.2 1.6 1.4 1.4 1.3 3.3 3.0 5.4 3.9 2.3 WIND STEADINESES (MEAN %) 50.0 38.8 64.2 35.3 36.4 35.9 36.8 36.1 63.5 65.2 70.1 67.2 47.9 WIND SPEED (MEAN KNOTS) 3.8 4.9 6.7 3.4 4.4 3.9 3.8 3.6 5.2 4.6 7.7 5.8 4.8 FASTEST WIND DIRECTION 250 30 230 200 360 340 340 340 360 360 310 340 230 FASTEST WIND SPEED (KNOTS) 18 34 44 20 30 18 18 13 25 40 33 44 44 DAY 8 15 12 16 27 30 1 13 10 25 1 8 DAYS WITH SKY CLEAR (0-2)/8 7 5 4 3 4 22 12 20 7 3 2 5 94 DAYS WITH P.CLOUDY (3-6)/8 12 12 9 9 16 7 10 6 9 9 5 6 110 DAYS WITH CLOUDY (7-8)/8 12 11 18 18 11 1 9 5 14 19 23 20 161 DAYS WITH VISIBILITY =< 2 KM 12 6 11 3 6 2 2 1 13 13 18 12 99 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1021.1 1016.9 1021.3 1021.0 1016.2 1013.3 1013.3 1013.2 1018.6 1024.3 1026.4 1029.2 1019.6 MAX. QFE PRESSURE IN HPA 1035.3 1029.1 1036.4 1032.5 1024.2 1024.4 1024.1 1021.0 1032.2 1043.7 1040.6 1041.1 1043.7 DAY-HOUR 28- 6 15-18 27-15 1- 6 4-18 10-21 20- 6 31- 6 30-21 26- 6 28- 3 9- 6 MIN. QFE PRESSURE IN HPA 1005.2 1001.5 996.5 1006.7 997.3 998.6 1004.5 1005.0 1004.9 1012.7 1010.7 1013.2 996.5 DAY-HOUR 11-12 10-15 12-15 20- 9 7-15 29-18 6-21 26-15 9-15 7- 3 23- 3 1- 0 MEAN QNH PRESSURE IN HPA 1017.6 1013.4 1017.8 1017.5 1012.8 1009.8 1009.8 1009.8 1015.2 1020.8 1022.9 1025.7 1016.1 MAX. QNH PRESSURE IN HPA 1031.8 1025.6 1032.9 1029.0 1020.7 1020.9 1020.6 1017.5 1028.7 1040.2 1037.1 1037.6 1040.2 DAY-HOUR 28- 6 15-18 27-15 1- 6 4-18 10-21 20- 6 31- 6 30-21 26- 6 28- 3 9- 6 MIN. QNH PRESSURE IN HPA 1001.8 998.1 993.1 1003.3 993.9 995.2 1001.1 1001.6 1001.5 1009.3 1007.3 1009.8 993.1 DAY-HOUR 11-12 10-15 12-15 20- 9 7-15 29-18 6-21 26-15 9-15 7- 3 23- 3 1- 0 MEAN QFF PRESSURE IN HPA 1017.8 1013.7 1018.1 1017.8 1013.1 1010.2 1010.3 1010.2 1015.6 1021.1 1023.2 1025.9 1016.4 MAX. QFF PRESSURE IN HPA 1032.0 1025.8 1033.1 1029.2 1021.0 1021.3 1021.1 1018.0 1029.1 1040.4 1037.3 1037.8 1040.4 DAY-HOUR 28- 6 15-18 27-15 1- 6 4-18 10-21 20- 6 31- 6 30-21 26- 6 28- 3 9- 6 MIN. QFF PRESSURE IN HPA 1002.0 998.4 993.4 1003.6 994.3 995.7 1001.5 1002.0 1001.9 1009.6 1007.5 1010.0 993.4 DAY-HOUR 11-12 10-15 12-15 20- 9 7-15 29-18 6-21 26-15 9-15 7- 3 23- 3 1- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1021.0 1017.1 1020.7 1021.5 1016.3 1013.3 1013.2 1013.2 1018.5 1024.3 1026.2 1029.0 1019.5 MAX. QFE PRESSURE IN HPA 1032.4 1028.2 1034.1 1032.2 1023.4 1023.3 1022.7 1018.8 1028.2 1039.6 1040.2 1039.4 1040.2 DAY 18 16 18 1 5 11 20 31 21 26 28 10 MIN. QFE PRESSURE IN HPA 1008.1 1006.2 999.5 1009.2 1007.3 1000.7 1005.8 1006.8 1009.2 1012.9 1012.0 1013.2 999.5 DAY 31 11 13 20 8 30 15 27 8 7 20 1 MEAN QNH PRESSURE IN HPA 1017.6 1013.6 1017.2 1018.1 1012.9 1009.9 1009.8 1009.7 1015.0 1020.9 1022.7 1025.5 1016.1 MAX. QNH PRESSURE IN HPA 1028.9 1024.7 1030.6 1028.7 1019.9 1019.8 1019.2 1015.3 1024.7 1036.1 1036.7 1035.9 1036.7 DAY 18 16 18 1 5 11 20 31 21 26 28 10 MIN. QNH PRESSURE IN HPA 1004.7 1002.8 996.1 1005.8 1003.9 997.3 1002.4 1003.4 1005.8 1009.5 1008.6 1009.8 996.1 DAY 31 11 13 20 8 30 15 27 8 7 20 1 MEAN QFF PRESSURE IN HPA 1017.8 1013.9 1017.5 1018.4 1013.2 1010.3 1010.2 1010.2 1015.4 1021.2 1023.0 1025.7 1016.4 MAX. QFF PRESSURE IN HPA 1029.1 1025.0 1030.8 1028.9 1020.2 1020.2 1019.7 1015.8 1025.1 1036.4 1036.9 1036.1 1036.9 DAY 18 16 18 1 5 11 20 31 21 26 28 11 MIN. QFF PRESSURE IN HPA 1005.0 1003.1 996.5 1006.1 1004.2 997.8 1002.8 1003.8 1006.2 1009.8 1008.8 1010.0 996.5 DAY 31 11 13 20 8 30 15 27 8 7 20 1 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1020.7 1017.3 1021.2 1021.4 1016.5 1013.6 1013.3 1013.6 1018.5 1024.4 1026.2 1029.5 1019.7 MAX. QFE PRESSURE IN HPA 1031.9 1027.5 1035.2 1031.6 1022.8 1023.0 1023.1 1019.2 1028.0 1042.1 1040.6 1039.5 1042.1 DAY 18 16 18 1 23 11 20 31 21 26 28 9 MIN. QFE PRESSURE IN HPA 1007.6 1006.5 1000.3 1008.4 1005.9 1002.1 1006.2 1008.5 1009.1 1012.7 1010.7 1017.1 1000.3 DAY 30 10 13 20 7 30 15 27 8 7 23 25 MEAN QNH PRESSURE IN HPA 1017.2 1013.9 1017.8 1018.0 1013.1 1010.2 1009.9 1010.1 1015.0 1020.9 1022.7 1026.0 1016.2 MAX. QNH PRESSURE IN HPA 1028.4 1024.0 1031.7 1028.1 1019.3 1019.5 1019.6 1015.7 1024.5 1038.6 1037.1 1036.0 1038.6 DAY 18 16 18 1 23 11 20 31 21 26 28 9 MIN. QNH PRESSURE IN HPA 1004.2 1003.1 996.9 1005.0 1002.5 998.7 1002.8 1005.1 1005.7 1009.3 1007.3 1013.6 996.9 DAY 30 10 13 20 7 30 15 27 8 7 23 25 MEAN QFF PRESSURE IN HPA 1017.5 1014.1 1018.0 1018.2 1013.4 1010.6 1010.3 1010.6 1015.4 1021.3 1022.9 1026.2 1016.5 MAX. QFF PRESSURE IN HPA 1028.6 1024.2 1031.9 1028.3 1019.7 1019.9 1020.1 1016.2 1024.9 1038.8 1037.3 1036.2 1038.8 DAY 18 16 18 1 23 11 20 31 21 26 28 9 MIN. QFF PRESSURE IN HPA 1004.4 1003.3 997.2 1005.3 1002.8 999.1 1003.2 1005.5 1006.1 1009.6 1007.5 1013.8 997.2 DAY 30 10 13 20 7 30 15 27 8 7 23 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.0 1018.0 1022.0 1021.8 1017.2 1014.0 1014.2 1014.3 1019.7 1025.3 1027.3 1030.5 1020.5 MAX. QFE PRESSURE IN HPA 1035.3 1028.4 1036.2 1032.5 1023.4 1023.4 1024.1 1021.0 1028.4 1043.7 1040.6 1041.1 1043.7 DAY 28 15 18 1 23 5 20 31 20 26 28 9 MIN. QFE PRESSURE IN HPA 1007.8 1006.6 1002.5 1008.4 1005.4 1004.4 1007.7 1008.7 1010.6 1013.5 1012.3 1017.4 1002.5 DAY 30 10 12 20 7 29 15 26 2 7 23 25 MEAN QNH PRESSURE IN HPA 1018.6 1014.6 1018.5 1018.3 1013.7 1010.5 1010.7 1010.8 1016.2 1021.8 1023.8 1027.0 1017.1 MAX. QNH PRESSURE IN HPA 1031.8 1024.9 1032.7 1029.0 1019.9 1019.9 1020.6 1017.5 1024.9 1040.2 1037.1 1037.6 1040.2 DAY 28 15 18 1 23 5 20 31 20 26 28 9 MIN. QNH PRESSURE IN HPA 1004.4 1003.2 999.1 1005.0 1002.0 1001.0 1004.3 1005.3 1007.2 1010.1 1008.9 1013.9 999.1 DAY 30 10 12 20 7 29 15 26 2 7 23 25 MEAN QFF PRESSURE IN HPA 1018.8 1014.8 1018.8 1018.6 1014.1 1011.0 1011.2 1011.3 1016.6 1022.1 1024.1 1027.2 1017.4 MAX. QFF PRESSURE IN HPA 1032.0 1025.1 1032.9 1029.2 1020.3 1020.3 1021.1 1018.0 1025.3 1040.4 1037.3 1037.8 1040.4 DAY 28 15 18 1 23 5 20 31 20 26 28 9 MIN. QFF PRESSURE IN HPA 1004.6 1003.4 999.4 1005.3 1002.3 1001.4 1004.7 1005.7 1007.6 1010.4 1009.1 1014.1 999.4 DAY 30 10 12 20 7 29 15 26 2 7 23 25 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1021.3 1017.3 1021.8 1021.1 1016.6 1013.8 1013.7 1013.9 1019.1 1024.6 1026.5 1029.5 1019.9 MAX. QFE PRESSURE IN HPA 1035.1 1028.6 1036.3 1031.8 1023.0 1023.3 1022.6 1020.6 1027.8 1042.8 1039.9 1040.8 1042.8 DAY 28 15 18 1 4 5 20 31 20 26 28 9 MIN. QFE PRESSURE IN HPA 1006.0 1004.7 1000.2 1006.7 1002.6 1003.6 1007.7 1007.5 1009.0 1013.8 1011.9 1017.1 1000.2 DAY 11 10 12 20 7 29 7 26 9 7 23 25 MEAN QNH PRESSURE IN HPA 1017.8 1013.9 1018.4 1017.7 1013.1 1010.4 1010.3 1010.4 1015.6 1021.1 1023.0 1026.0 1016.5 MAX. QNH PRESSURE IN HPA 1031.6 1025.1 1032.8 1028.3 1019.5 1019.8 1019.1 1017.1 1024.3 1039.3 1036.4 1037.3 1039.3 DAY 28 15 18 1 4 5 20 31 20 26 28 9 MIN. QNH PRESSURE IN HPA 1002.6 1001.3 996.8 1003.3 999.2 1000.2 1004.3 1004.1 1005.6 1010.4 1008.5 1013.6 996.8 DAY 11 10 12 20 7 29 7 26 9 7 23 25 MEAN QFF PRESSURE IN HPA 1018.0 1014.2 1018.6 1018.0 1013.5 1010.8 1010.7 1010.9 1016.0 1021.5 1023.3 1026.2 1016.8 MAX. QFF PRESSURE IN HPA 1031.8 1025.4 1033.0 1028.5 1019.9 1020.2 1019.6 1017.6 1024.7 1039.5 1036.6 1037.5 1039.5 DAY 28 15 18 1 23 5 20 31 20 26 28 9 MIN. QFF PRESSURE IN HPA 1002.8 1001.5 997.2 1003.6 999.6 1000.6 1004.7 1004.5 1006.0 1010.8 1008.8 1013.9 997.2 DAY 11 10 12 20 7 29 7 26 9 7 23 25 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1020.5 1015.9 1020.9 1020.2 1015.7 1013.2 1013.0 1012.9 1018.1 1023.5 1025.9 1028.6 1019.0 MAX. QFE PRESSURE IN HPA 1033.5 1027.7 1035.6 1031.6 1022.8 1022.6 1021.0 1019.0 1027.7 1041.1 1039.3 1040.4 1041.1 DAY 28 15 18 1 4 10 19 31 20 26 28 9 MIN. QFE PRESSURE IN HPA 1005.2 1001.9 997.2 1007.1 1000.3 1002.3 1007.0 1006.5 1006.0 1013.0 1011.0 1016.5 997.2 DAY 11 19 12 20 7 29 7 26 9 3 19 25 MEAN QNH PRESSURE IN HPA 1017.1 1012.5 1017.5 1016.8 1012.3 1009.7 1009.6 1009.5 1014.6 1020.0 1022.4 1025.1 1015.6 MAX. QNH PRESSURE IN HPA 1030.0 1024.2 1032.1 1028.1 1019.3 1019.1 1017.5 1015.5 1024.2 1037.6 1035.8 1036.9 1037.6 DAY 28 15 18 1 4 10 19 31 20 26 28 9 MIN. QNH PRESSURE IN HPA 1001.8 998.5 993.8 1003.7 996.9 998.9 1003.6 1003.1 1002.6 1009.6 1007.6 1013.0 993.8 DAY 11 19 12 20 7 29 7 26 9 3 19 25 MEAN QFF PRESSURE IN HPA 1017.3 1012.7 1017.7 1017.1 1012.6 1010.2 1010.0 1009.9 1015.0 1020.3 1022.7 1025.3 1015.9 MAX. QFF PRESSURE IN HPA 1030.2 1024.5 1032.3 1028.3 1019.6 1019.5 1018.0 1016.0 1024.6 1037.8 1036.0 1037.1 1037.8 DAY 28 15 18 1 4 10 19 31 20 26 28 9 MIN. QFF PRESSURE IN HPA 1002.0 998.8 994.2 1004.0 997.2 999.3 1004.0 1003.5 1003.0 1009.9 1007.9 1013.3 994.2 DAY 11 19 12 20 7 29 7 26 9 3 19 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1020.9 1016.1 1021.1 1020.3 1015.4 1012.6 1012.6 1012.4 1017.9 1023.9 1026.5 1029.2 1019.1 MAX. QFE PRESSURE IN HPA 1032.1 1028.7 1036.4 1031.8 1023.1 1022.8 1021.3 1018.4 1028.0 1040.6 1039.9 1040.6 1040.6 DAY 28 15 27 1 4 10 19 31 20 26 28 9 MIN. QFE PRESSURE IN HPA 1006.2 1001.5 996.5 1007.1 997.3 1002.3 1006.4 1005.0 1004.9 1013.0 1011.1 1018.7 996.5 DAY 11 10 12 20 7 29 7 26 9 3 19 25 MEAN QNH PRESSURE IN HPA 1017.4 1012.6 1017.7 1016.8 1011.9 1009.2 1009.2 1008.9 1014.5 1020.4 1023.1 1025.7 1015.6 MAX. QNH PRESSURE IN HPA 1028.6 1025.2 1032.9 1028.3 1019.6 1019.3 1017.8 1014.9 1024.5 1037.1 1036.4 1037.1 1037.1 DAY 28 15 27 1 4 10 19 31 20 26 28 9 MIN. QNH PRESSURE IN HPA 1002.8 998.1 993.1 1003.7 993.9 998.9 1003.0 1001.6 1001.5 1009.6 1007.7 1015.2 993.1 DAY 11 10 12 20 7 29 7 26 9 3 19 25 MEAN QFF PRESSURE IN HPA 1017.7 1012.9 1017.9 1017.1 1012.3 1009.6 1009.6 1009.4 1014.9 1020.8 1023.3 1025.9 1015.9 MAX. QFF PRESSURE IN HPA 1028.8 1025.4 1033.1 1028.5 1019.9 1019.7 1018.3 1015.4 1024.9 1037.3 1036.6 1037.2 1037.3 DAY 28 15 27 1 4 10 19 31 20 26 28 9 MIN. QFF PRESSURE IN HPA 1003.0 998.4 993.4 1004.0 994.3 999.3 1003.4 1002.0 1001.9 1009.9 1008.0 1015.5 993.4 DAY 11 10 12 20 7 29 7 26 9 6 19 25 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1021.2 1016.8 1021.2 1020.8 1016.0 1012.8 1013.0 1012.7 1018.7 1024.2 1026.4 1029.0 1019.4 MAX. QFE PRESSURE IN HPA 1031.7 1029.1 1036.1 1031.6 1024.2 1023.8 1021.8 1018.4 1030.7 1040.5 1039.5 1040.3 1040.5 DAY 18 15 27 1 4 10 19 31 30 26 27 9 MIN. QFE PRESSURE IN HPA 1007.5 1003.6 997.3 1009.1 1002.6 998.6 1006.6 1005.4 1005.6 1013.1 1011.4 1016.4 997.3 DAY 30 10 12 20 7 29 14 26 9 3 19 31 MEAN QNH PRESSURE IN HPA 1017.8 1013.3 1017.7 1017.3 1012.6 1009.4 1009.6 1009.3 1015.2 1020.7 1022.9 1025.5 1015.9 MAX. QNH PRESSURE IN HPA 1028.2 1025.6 1032.6 1028.1 1020.7 1020.3 1018.3 1014.9 1027.2 1037.0 1036.0 1036.8 1037.0 DAY 18 15 27 1 4 10 19 31 30 26 27 9 MIN. QNH PRESSURE IN HPA 1004.1 1000.2 993.9 1005.7 999.2 995.2 1003.2 1002.0 1002.2 1009.7 1008.0 1012.9 993.9 DAY 30 10 12 20 7 29 14 26 9 3 19 31 MEAN QFF PRESSURE IN HPA 1018.0 1013.6 1018.0 1017.6 1012.9 1009.8 1010.0 1009.7 1015.6 1021.0 1023.2 1025.7 1016.3 MAX. QFF PRESSURE IN HPA 1028.4 1025.8 1032.8 1028.3 1021.0 1020.7 1018.8 1015.4 1027.6 1037.2 1036.2 1036.9 1037.2 DAY 18 15 27 1 4 10 19 31 30 26 27 9 MIN. QFF PRESSURE IN HPA 1004.4 1000.5 994.3 1006.0 999.5 995.7 1003.6 1002.4 1002.6 1010.0 1008.3 1013.2 994.3 DAY 30 10 12 20 7 29 14 26 9 3 19 31 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1021.1 1016.7 1021.4 1021.1 1016.3 1012.9 1013.1 1012.9 1018.8 1024.2 1026.4 1028.9 1019.5 MAX. QFE PRESSURE IN HPA 1031.4 1028.7 1035.9 1032.1 1023.8 1024.4 1022.2 1019.2 1032.2 1039.6 1039.8 1038.2 1039.8 DAY 17 15 27 4 4 10 19 31 30 26 27 8 MIN. QFE PRESSURE IN HPA 1008.2 1004.5 998.2 1009.8 1005.4 999.8 1004.5 1006.1 1008.7 1013.0 1011.6 1014.1 998.2 DAY 30 10 12 19 7 29 6 26 9 6 19 31 MEAN QNH PRESSURE IN HPA 1017.6 1013.3 1018.0 1017.6 1012.9 1009.5 1009.7 1009.4 1015.3 1020.7 1022.9 1025.4 1016.0 MAX. QNH PRESSURE IN HPA 1027.9 1025.2 1032.4 1028.6 1020.3 1020.9 1018.7 1015.7 1028.7 1036.1 1036.3 1034.7 1036.3 DAY 17 15 27 4 4 10 19 31 30 26 27 8 MIN. QNH PRESSURE IN HPA 1004.8 1001.1 994.8 1006.4 1002.0 996.4 1001.1 1002.7 1005.3 1009.6 1008.2 1010.7 994.8 DAY 30 10 12 19 7 29 6 26 9 6 19 31 MEAN QFF PRESSURE IN HPA 1017.9 1013.5 1018.2 1017.9 1013.2 1009.9 1010.1 1009.9 1015.7 1021.1 1023.2 1025.6 1016.3 MAX. QFF PRESSURE IN HPA 1028.1 1025.5 1032.6 1028.9 1020.6 1021.3 1019.2 1016.2 1029.1 1036.3 1036.5 1034.9 1036.5 DAY 17 15 27 4 4 10 19 31 30 26 27 8 MIN. QFF PRESSURE IN HPA 1005.1 1001.4 995.2 1006.7 1002.4 996.9 1001.5 1003.1 1005.7 1010.0 1008.5 1010.9 995.2 DAY 30 10 12 19 7 29 6 26 9 6 19 31 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.8 3.1 6.0 10.2 19.0 24.5 27.6 27.2 23.3 19.7 ***** ***** ***** MINIMUN AIR TEMPERATURE (C) 2.0 1.1 3.6 7.8 15.7 19.9 22.7 22.6 19.6 15.3 ***** ***** ***** DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 15 25 27 11 0 **** **** **** DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 **** **** **** DAYS WITH FREEZING MIN.<= 0 6 10 1 1 0 0 0 0 0 0 **** **** **** TEMPERATURE RECORDS LOWEST(C) -2.0 -1.0 0.0 -1.0 11.0 17.0 20.0 20.0 16.0 14.0 ***** ***** ***** DAY 18 6 2 3 1 10 3 15 17 1 ** ** MAXIMUM AIR TEMPERATURE (C) 9.2 5.3 8.4 13.1 23.0 28.5 31.7 31.0 26.9 23.8 ***** ***** ***** DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 11 27 26 6 0 **** **** **** DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 **** **** **** TEMPERATURE RECORDS HIGHEST(C) 22.0 24.0 14.0 23.0 28.0 32.0 34.0 34.0 33.0 26.0 ***** ***** ***** DAY 12 4 29 23 13 29 17 9 1 1 ** ** DIF. BETWEEN (MAX.-MIN.) (C) 7.2 4.2 4.8 5.3 7.3 8.6 9.0 8.4 7.3 8.5 ***** ***** ***** MEAN DAILY TEMP. (MDT) (C) 5.6 3.2 6.0 10.4 19.4 24.2 27.2 26.8 23.2 19.6 ***** ***** ***** COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 12.0 96.5 193.0 180.0 69.0 1.5 ****** ****** ****** HEATING DEG. DAYS(BASE 18 0C) 385.0 413.5 372.0 227.0 19.0 0.0 0.0 0.0 0.0 1.0 ****** ****** ****** DEWPOINT (MEAN C) 2.6 1.6 4.2 8.2 15.5 18.4 21.5 22.5 19.6 16.6 ***** ***** ***** MIXING RATIO (G/KG) 4.60 4.23 5.09 6.82 11.08 13.32 16.39 17.25 14.36 11.77 ****** ****** ****** VAPOUR PRESSURE (HPA) 7.47 6.91 8.32 11.05 17.77 21.26 25.95 27.32 22.95 18.97 ****** ****** ****** SATURATION DEF. (HPA) 1.96 0.84 1.10 1.66 4.53 9.87 11.50 9.12 6.14 4.26 ****** ****** ****** RELATIVE HUMIDITY (MEAN %) 83 91 89 88 81 70 71 77 80 83 *** *** *** RELATIVE HUMIDITY (MAX. %) 93 96 95 95 94 87 86 90 93 95 *** *** *** RELATIVE HUMIDITY (MIN. %) 71 81 80 77 66 54 55 62 67 67 *** *** *** RELATIVE HUMIDITY (MEAN% 03UTC) 87 91 91 94 90 82 81 88 88 93 *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) 82 88 84 79 70 58 61 67 70 71 *** *** *** RELATIVE HUMIDITY (MEAN% 15UTC) 82 92 88 87 78 62 65 73 77 80 *** *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 69.0 179.1 95.1 137.8 69.0 9.0 27.6 191.0 195.6 84.5 ****** ****** ****** DAYS WITH PRECIPITATION >=10 3 9 4 5 1 0 1 3 7 2 **** **** **** DAYS WITH PRECIPITATION >= 5 4 12 8 8 2 1 2 3 9 4 **** **** **** DAYS WITH PRECIPITATION >= 1 10 17 13 12 5 3 4 3 10 7 **** **** **** DAYS WITH PRECIPITATION 12 19 14 17 6 4 9 4 14 10 **** **** **** GREATEST DAILY PRECIPITATION 25.0 27.0 18.0 45.0 59.0 7.0 15.0 117.0 42.0 52.0 ****** ****** ****** DAY 7 27 27 9 18 2 24 14 29 9 ** ** DAY WITH THUNDER STORM 0 0 1 1 2 4 7 2 2 3 **** **** **** DAYS WITH SNOW OR SLEET 0 9 0 1 0 0 0 0 0 0 **** **** **** DAYS WITH DUST 0 0 1 0 0 0 0 0 0 0 **** **** **** WIND DIRECTION (PREVAILING) 270 315 315 315 360 360 180 90 180 180 *** *** *** PREVAILING WIND SPEED(KNOTS) 4.6 5.7 3.3 4.0 3.8 4.6 1.9 5.4 2.1 1.8 **** **** **** PREVAILING WIND PERCENT 23.4 59.8 37.9 37.9 27.0 21.7 19.0 23.0 19.2 29.4 ***** ***** ***** CALMS PERCENT OF WIND 1.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 ***** ***** ***** NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 **** **** 2432 VECTOR WIND DIRECTION (MEAN) 283 302 348 9 43 16 28 36 329 38 *** *** *** VECTOR WIND MAGNITUDE(KNOTS) 2.9 4.2 1.6 2.2 2.5 1.9 1.5 1.3 1.8 0.7 **** **** **** WIND STEADINESES (MEAN %) 59.2 82.4 53.3 59.5 61.0 50.0 35.7 31.7 41.9 24.1 ***** ***** ***** WIND SPEED (MEAN KNOTS) 4.9 5.1 3.0 3.7 4.1 3.8 4.2 4.1 4.3 2.9 **** **** **** FASTEST WIND DIRECTION 20 230 310 330 310 330 310 20 310 360 *** *** *** FASTEST WIND SPEED (KNOTS) 24 18 9 18 18 16 40 24 24 24 *** *** *** DAY 21 4 14 23 17 5 23 14 4 4 ** ** DAYS WITH SKY CLEAR (0-2)/8 4 1 1 0 11 18 13 20 10 13 **** **** **** DAYS WITH P.CLOUDY (3-6)/8 12 3 7 8 15 11 13 6 6 11 **** **** **** DAYS WITH CLOUDY (7-8)/8 15 24 23 22 5 1 5 5 14 7 **** **** **** DAYS WITH VISIBILITY =< 2 KM 15 20 10 9 12 1 1 3 7 5 **** **** **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1018.9 1024.1 1026.4 1020.1 1016.3 1014.5 1011.0 1012.7 1017.6 1021.1 ****** ****** ****** MAX. QFE PRESSURE IN HPA 1034.5 1042.0 1041.2 1031.6 1032.9 1022.0 1016.2 1020.4 1027.0 1032.5 ****** ****** ****** DAY-HOUR 17- 6 22- 6 1-21 30- 9 1- 6 2-21 11- 6 15- 6 30- 6 11- 6 **-** **-** MIN. QFE PRESSURE IN HPA 1004.5 1007.4 1012.5 1004.9 1004.1 1010.0 1003.0 1005.0 1010.1 1008.1 ****** ****** ****** DAY-HOUR 11-12 4- 3 18-12 23-15 13- 3 27-15 16-15 10-15 27- 0 2-21 **-** **-** MEAN QNH PRESSURE IN HPA 1015.5 1020.6 1022.9 1016.7 1012.8 1011.0 1007.5 1009.3 1014.2 1017.7 ****** ****** ****** MAX. QNH PRESSURE IN HPA 1031.0 1038.5 1037.7 1028.1 1029.4 1018.5 1012.7 1016.9 1023.5 1029.0 ****** ****** ****** DAY-HOUR 17- 6 22- 6 1-21 30- 9 1- 6 2-21 11- 6 15- 6 30- 6 11- 6 **-** **-** MIN. QNH PRESSURE IN HPA 1001.1 1004.0 1009.1 1001.5 1000.7 1006.6 999.6 1001.6 1006.7 1004.7 ****** ****** ****** DAY-HOUR 11-12 4- 3 18-12 23-15 13- 3 27-15 16-15 10-15 27- 0 2-21 **-** **-** MEAN QFF PRESSURE IN HPA 1015.7 1020.8 1023.1 1016.9 1013.2 1011.4 1008.0 1009.7 1014.6 1018.0 ****** ****** ****** MAX. QFF PRESSURE IN HPA 1031.2 1038.6 1037.9 1028.4 1029.7 1018.9 1013.2 1017.3 1023.9 1029.4 ****** ****** ****** DAY-HOUR 17- 6 22- 6 1-21 30- 9 1- 6 2-21 11- 6 15- 6 30- 6 11- 6 **-** **-** MIN. QFF PRESSURE IN HPA 1001.3 1004.2 1009.3 1001.8 1001.1 1007.0 1000.1 1002.0 1007.1 1005.1 ****** ****** ****** DAY-HOUR 11-12 4- 3 18-12 23-15 13- 3 27-15 16-15 10-15 27- 0 2-21 **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1019.1 1024.0 1026.8 1020.1 1016.7 1014.8 1011.1 1013.0 1017.6 1021.2 ****** ****** ****** MAX. QFE PRESSURE IN HPA 1034.2 1040.5 1040.8 1030.1 1031.1 1021.7 1015.6 1019.6 1026.4 1031.7 ****** ****** ****** DAY 17 22 2 3 1 3 24 15 30 12 ** ** MIN. QFE PRESSURE IN HPA 1006.7 1008.9 1015.6 1012.3 1004.7 1011.2 1004.3 1007.1 1010.1 1009.7 ****** ****** ****** DAY 12 4 18 17 13 8 9 10 27 3 ** ** MEAN QNH PRESSURE IN HPA 1015.6 1020.6 1023.3 1016.6 1013.2 1011.4 1007.7 1009.5 1014.2 1017.8 ****** ****** ****** MAX. QNH PRESSURE IN HPA 1030.7 1037.0 1037.3 1026.6 1027.6 1018.2 1012.2 1016.1 1022.9 1028.2 ****** ****** ****** DAY 17 22 2 3 1 3 24 15 30 12 ** ** MIN. QNH PRESSURE IN HPA 1003.3 1005.5 1012.2 1008.9 1001.3 1007.8 1000.9 1003.7 1006.7 1006.3 ****** ****** ****** DAY 12 4 18 17 13 8 9 10 27 3 ** ** MEAN QFF PRESSURE IN HPA 1015.8 1020.7 1023.5 1016.9 1013.6 1011.8 1008.1 1010.0 1014.6 1018.1 ****** ****** ****** MAX. QFF PRESSURE IN HPA 1030.9 1037.1 1037.5 1026.8 1027.9 1018.6 1012.6 1016.5 1023.3 1028.6 ****** ****** ****** DAY 17 22 2 3 1 3 24 15 30 12 ** ** MIN. QFF PRESSURE IN HPA 1003.5 1005.7 1012.4 1009.1 1001.7 1008.2 1001.3 1004.1 1007.1 1006.6 ****** ****** ****** DAY 12 4 18 17 13 8 9 10 27 3 ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1019.1 1024.0 1026.4 1019.8 1016.6 1014.6 1011.3 1013.1 1017.8 1021.2 ****** ****** ****** MAX. QFE PRESSURE IN HPA 1033.9 1041.2 1040.3 1029.2 1031.5 1021.0 1015.2 1019.0 1026.2 1030.9 ****** ****** ****** DAY 17 22 2 3 1 3 24 15 30 12 ** ** MIN. QFE PRESSURE IN HPA 1007.7 1007.4 1013.1 1011.7 1004.1 1011.5 1004.7 1007.3 1011.3 1011.7 ****** ****** ****** DAY 12 4 18 23 13 27 22 10 27 3 ** ** MEAN QNH PRESSURE IN HPA 1015.6 1020.5 1022.9 1016.3 1013.2 1011.2 1007.8 1009.7 1014.3 1017.7 ****** ****** ****** MAX. QNH PRESSURE IN HPA 1030.4 1037.7 1036.8 1025.7 1028.0 1017.5 1011.8 1015.5 1022.7 1027.4 ****** ****** ****** DAY 17 22 2 3 1 3 24 15 30 12 ** ** MIN. QNH PRESSURE IN HPA 1004.3 1004.0 1009.7 1008.3 1000.7 1008.1 1001.3 1003.9 1007.9 1008.3 ****** ****** ****** DAY 12 4 18 23 13 27 22 10 27 3 ** ** MEAN QFF PRESSURE IN HPA 1015.8 1020.7 1023.1 1016.6 1013.5 1011.6 1008.3 1010.1 1014.7 1018.1 ****** ****** ****** MAX. QFF PRESSURE IN HPA 1030.6 1037.8 1036.9 1025.9 1028.3 1017.9 1012.2 1015.9 1023.1 1027.8 ****** ****** ****** DAY 17 22 2 3 1 3 24 15 30 12 ** ** MIN. QFF PRESSURE IN HPA 1004.5 1004.2 1009.9 1008.5 1001.1 1008.5 1001.8 1004.3 1008.3 1008.7 ****** ****** ****** DAY 12 4 18 23 13 27 22 10 27 3 ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1019.8 1024.8 1027.3 1020.8 1017.1 1015.0 1011.7 1013.7 1018.6 1022.3 ****** ****** ****** MAX. QFE PRESSURE IN HPA 1034.5 1042.0 1041.2 1031.4 1032.9 1020.6 1016.2 1020.4 1027.0 1032.5 ****** ****** ****** DAY 17 22 2 30 1 2 11 15 30 11 ** ** MIN. QFE PRESSURE IN HPA 1008.2 1009.3 1014.6 1011.2 1004.8 1011.7 1005.2 1007.9 1012.4 1014.9 ****** ****** ****** DAY 12 4 18 23 13 8 22 10 27 2 ** ** MEAN QNH PRESSURE IN HPA 1016.4 1021.3 1023.8 1017.4 1013.6 1011.5 1008.2 1010.3 1015.1 1018.8 ****** ****** ****** MAX. QNH PRESSURE IN HPA 1031.0 1038.5 1037.7 1027.9 1029.4 1017.1 1012.7 1016.9 1023.5 1029.0 ****** ****** ****** DAY 17 22 2 30 1 2 11 15 30 11 ** ** MIN. QNH PRESSURE IN HPA 1004.8 1005.9 1011.2 1007.8 1001.4 1008.3 1001.8 1004.5 1009.0 1011.5 ****** ****** ****** DAY 12 4 18 23 13 8 22 10 27 2 ** ** MEAN QFF PRESSURE IN HPA 1016.5 1021.5 1024.0 1017.6 1014.0 1012.0 1008.7 1010.7 1015.6 1019.2 ****** ****** ****** MAX. QFF PRESSURE IN HPA 1031.2 1038.6 1037.9 1028.2 1029.7 1017.5 1013.2 1017.3 1023.9 1029.4 ****** ****** ****** DAY 17 22 2 30 1 2 11 15 30 11 ** ** MIN. QFF PRESSURE IN HPA 1005.0 1006.1 1011.4 1008.0 1001.8 1008.7 1002.3 1004.9 1009.4 1011.8 ****** ****** ****** DAY 12 4 18 23 13 8 22 10 27 2 ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1018.8 1024.3 1026.8 1020.3 1016.6 1014.8 1011.3 1013.3 1018.0 1021.5 ****** ****** ****** MAX. QFE PRESSURE IN HPA 1033.3 1041.4 1040.4 1031.6 1031.7 1020.9 1016.0 1020.2 1026.2 1032.2 ****** ****** ****** DAY 15 22 2 30 1 3 11 15 30 11 ** ** MIN. QFE PRESSURE IN HPA 1006.0 1009.1 1013.6 1008.4 1004.5 1011.4 1004.3 1007.0 1011.7 1013.0 ****** ****** ****** DAY 12 4 18 23 13 8 22 10 27 2 ** ** MEAN QNH PRESSURE IN HPA 1015.3 1020.8 1023.3 1016.8 1013.1 1011.4 1007.8 1009.8 1014.5 1018.0 ****** ****** ****** MAX. QNH PRESSURE IN HPA 1029.8 1037.9 1036.9 1028.1 1028.2 1017.4 1012.5 1016.7 1022.7 1028.7 ****** ****** ****** DAY 15 22 2 30 1 3 11 15 30 11 ** ** MIN. QNH PRESSURE IN HPA 1002.6 1005.7 1010.2 1005.0 1001.1 1008.0 1000.9 1003.6 1008.3 1009.6 ****** ****** ****** DAY 12 4 18 23 13 8 22 10 27 2 ** ** MEAN QFF PRESSURE IN HPA 1015.5 1021.0 1023.5 1017.1 1013.5 1011.8 1008.3 1010.3 1014.9 1018.4 ****** ****** ****** MAX. QFF PRESSURE IN HPA 1030.0 1038.0 1037.1 1028.4 1028.5 1017.8 1013.0 1017.1 1023.1 1029.1 ****** ****** ****** DAY 15 22 2 30 1 3 11 15 30 11 ** ** MIN. QFF PRESSURE IN HPA 1002.9 1006.0 1010.4 1005.3 1001.5 1008.4 1001.4 1004.1 1008.7 1009.9 ****** ****** ****** DAY 12 4 18 23 13 8 22 10 27 2 ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1017.9 1023.3 1025.6 1019.5 1015.8 1014.1 1010.5 1012.2 1017.0 1020.4 ****** ****** ****** MAX. QFE PRESSURE IN HPA 1033.1 1039.4 1038.9 1030.5 1029.4 1020.0 1015.2 1019.1 1024.9 1031.4 ****** ****** ****** DAY 16 22 2 30 1 2 11 15 30 11 ** ** MIN. QFE PRESSURE IN HPA 1004.5 1008.5 1012.5 1005.8 1005.1 1010.7 1003.3 1005.3 1010.4 1011.0 ****** ****** ****** DAY 11 4 18 23 13 27 16 10 27 2 ** ** MEAN QNH PRESSURE IN HPA 1014.4 1019.8 1022.2 1016.1 1012.4 1010.6 1007.0 1008.8 1013.5 1017.0 ****** ****** ****** MAX. QNH PRESSURE IN HPA 1029.6 1035.9 1035.4 1027.0 1025.9 1016.5 1011.8 1015.6 1021.4 1027.9 ****** ****** ****** DAY 16 22 2 30 1 2 11 15 30 11 ** ** MIN. QNH PRESSURE IN HPA 1001.1 1005.1 1009.1 1002.4 1001.7 1007.3 999.9 1001.9 1007.0 1007.6 ****** ****** ****** DAY 11 4 18 23 13 27 16 10 27 2 ** ** MEAN QFF PRESSURE IN HPA 1014.6 1020.0 1022.4 1016.3 1012.7 1011.1 1007.5 1009.2 1013.9 1017.3 ****** ****** ****** MAX. QFF PRESSURE IN HPA 1029.8 1036.0 1035.6 1027.3 1026.2 1016.9 1012.2 1016.0 1021.8 1028.3 ****** ****** ****** DAY 16 22 2 30 1 2 11 15 30 11 ** ** MIN. QFF PRESSURE IN HPA 1001.3 1005.4 1009.3 1002.7 1002.1 1007.7 1000.4 1002.4 1007.4 1007.9 ****** ****** ****** DAY 11 4 18 23 13 27 16 10 27 2 ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1018.7 1023.9 1025.7 1019.7 1015.8 1013.6 1010.1 1011.7 1017.0 1020.6 ****** ****** ****** MAX. QFE PRESSURE IN HPA 1034.0 1039.0 1038.3 1030.7 1028.7 1020.0 1015.0 1018.4 1024.7 1031.3 ****** ****** ****** DAY 16 21 2 30 1 2 24 15 21 11 ** ** MIN. QFE PRESSURE IN HPA 1005.7 1010.7 1013.1 1004.9 1006.3 1010.0 1003.0 1005.0 1010.9 1008.9 ****** ****** ****** DAY 11 19 31 23 13 27 16 10 26 2 ** ** MEAN QNH PRESSURE IN HPA 1015.2 1020.4 1022.3 1016.3 1012.3 1010.1 1006.7 1008.3 1013.5 1017.2 ****** ****** ****** MAX. QNH PRESSURE IN HPA 1030.5 1035.5 1034.8 1027.2 1025.2 1016.5 1011.6 1014.9 1021.2 1027.8 ****** ****** ****** DAY 16 21 2 30 1 2 24 15 21 11 ** ** MIN. QNH PRESSURE IN HPA 1002.3 1007.3 1009.7 1001.5 1002.9 1006.6 999.6 1001.6 1007.5 1005.5 ****** ****** ****** DAY 11 19 31 23 13 27 16 10 26 2 ** ** MEAN QFF PRESSURE IN HPA 1015.4 1020.6 1022.5 1016.5 1012.7 1010.6 1007.1 1008.7 1013.9 1017.5 ****** ****** ****** MAX. QFF PRESSURE IN HPA 1030.7 1035.6 1035.0 1027.5 1025.5 1016.9 1012.0 1015.3 1021.6 1028.2 ****** ****** ****** DAY 16 21 2 30 1 2 24 15 21 11 ** ** MIN. QFF PRESSURE IN HPA 1002.5 1007.5 1009.9 1001.8 1003.3 1007.0 1000.1 1002.0 1007.9 1005.8 ****** ****** ****** DAY 11 19 31 23 13 27 16 10 26 2 ** ** PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1019.0 1024.4 1026.2 1020.2 1015.9 1014.2 1010.7 1012.2 1017.4 1020.8 ****** ****** ****** MAX. QFE PRESSURE IN HPA 1034.2 1039.5 1040.5 1031.4 1028.4 1021.0 1015.2 1018.7 1025.4 1031.6 ****** ****** ****** DAY 16 21 1 30 1 2 24 15 21 11 ** ** MIN. QFE PRESSURE IN HPA 1006.3 1011.5 1014.8 1008.0 1006.3 1011.1 1005.2 1006.0 1010.9 1008.5 ****** ****** ****** DAY 11 3 24 23 12 27 16 23 26 2 ** ** MEAN QNH PRESSURE IN HPA 1015.6 1020.9 1022.7 1016.8 1012.5 1010.7 1007.2 1008.7 1014.0 1017.4 ****** ****** ****** MAX. QNH PRESSURE IN HPA 1030.7 1036.0 1037.0 1027.9 1024.9 1017.5 1011.8 1015.2 1021.9 1028.1 ****** ****** ****** DAY 16 21 1 30 1 2 24 15 21 11 ** ** MIN. QNH PRESSURE IN HPA 1002.9 1008.1 1011.4 1004.6 1002.9 1007.7 1001.8 1002.6 1007.5 1005.1 ****** ****** ****** DAY 11 3 24 23 12 27 16 23 26 2 ** ** MEAN QFF PRESSURE IN HPA 1015.8 1021.0 1022.9 1017.0 1012.8 1011.2 1007.7 1009.2 1014.4 1017.7 ****** ****** ****** MAX. QFF PRESSURE IN HPA 1030.9 1036.1 1037.1 1028.2 1025.2 1017.9 1012.2 1015.6 1022.3 1028.5 ****** ****** ****** DAY 16 21 1 30 1 2 24 15 21 11 ** ** MIN. QFF PRESSURE IN HPA 1003.1 1008.3 1011.6 1004.9 1003.3 1008.1 1002.3 1003.0 1007.9 1005.5 ****** ****** ****** DAY 11 3 24 23 12 27 16 23 26 2 ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1019.3 1024.4 1026.5 1020.6 1016.0 1014.7 1011.2 1012.8 1017.8 1021.1 ****** ****** ****** MAX. QFE PRESSURE IN HPA 1034.2 1039.9 1041.2 1031.2 1027.3 1022.0 1015.4 1019.6 1026.1 1032.0 ****** ****** ****** DAY 16 21 1 30 1 2 24 14 29 11 ** ** MIN. QFE PRESSURE IN HPA 1007.1 1010.3 1015.6 1011.7 1005.7 1010.9 1006.3 1006.9 1010.8 1008.1 ****** ****** ****** DAY 11 3 24 23 12 7 21 23 26 2 ** ** MEAN QNH PRESSURE IN HPA 1015.8 1021.0 1023.0 1017.2 1012.6 1011.3 1007.8 1009.3 1014.4 1017.6 ****** ****** ****** MAX. QNH PRESSURE IN HPA 1030.7 1036.4 1037.7 1027.7 1023.8 1018.5 1012.0 1016.1 1022.6 1028.5 ****** ****** ****** DAY 16 21 1 30 1 2 24 14 29 11 ** ** MIN. QNH PRESSURE IN HPA 1003.7 1006.9 1012.2 1008.3 1002.3 1007.5 1002.9 1003.5 1007.4 1004.7 ****** ****** ****** DAY 11 3 24 23 12 7 21 23 26 2 ** ** MEAN QFF PRESSURE IN HPA 1016.0 1021.1 1023.2 1017.4 1012.9 1011.7 1008.3 1009.8 1014.8 1018.0 ****** ****** ****** MAX. QFF PRESSURE IN HPA 1030.9 1036.5 1037.9 1028.0 1024.1 1018.9 1012.4 1016.5 1023.0 1028.9 ****** ****** ****** DAY 16 21 1 30 1 2 24 14 29 11 ** ** MIN. QFF PRESSURE IN HPA 1003.9 1007.1 1012.4 1008.6 1002.7 1007.9 1003.4 1003.9 1007.8 1005.1 ****** ****** ****** DAY 11 3 24 23 12 7 21 23 26 2 ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.1 10.7 9.4 12.7 19.1 22.8 26.5 25.5 22.6 19.4 14.2 9.9 16.7 MINIMUN AIR TEMPERATURE (C) 5.5 7.0 6.6 9.9 14.5 19.1 21.7 21.6 19.9 15.5 10.9 6.5 13.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 10 26 19 17 0 0 0 72 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS LOWEST(C) 1.0 2.0 3.0 4.0 6.0 13.0 19.0 17.0 15.0 10.0 7.0 2.0 1.0 DAY 29 2 5 12 27 23 17 17 30 12 26 6 MAXIMUM AIR TEMPERATURE (C) 10.5 15.4 12.2 15.6 22.6 26.6 30.6 29.3 26.5 23.5 17.8 13.6 20.3 DAYS WITH MAXIMUM TEMP. >=30 0 2 0 0 0 2 26 16 3 0 0 0 49 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 16.0 31.0 28.0 24.0 27.0 31.0 33.0 35.0 30.0 27.0 24.0 24.0 35.0 DAY 13 27 29 21 18 11 22 5 21 7 3 9 DIF. BETWEEN (MAX.-MIN.) (C) 5.0 8.4 5.6 5.7 8.1 7.5 8.9 7.7 6.6 8.0 6.9 7.1 7.1 MEAN DAILY TEMP. (MDT) (C) 8.0 11.2 9.4 12.8 18.6 22.8 26.2 25.4 23.2 19.5 14.3 10.1 16.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 11.0 66.5 160.0 141.5 78.0 5.5 0.0 0.0 462.5 HEATING DEG. DAYS(BASE 18 0C) 310.0 194.5 267.0 157.0 30.5 1.0 0.0 0.0 0.0 5.0 113.0 245.0 1323.0 DEWPOINT (MEAN C) 6.2 6.7 7.1 9.6 15.4 18.4 20.8 21.2 19.5 16.2 12.0 7.2 13.4 MIXING RATIO (G/KG) 5.83 6.12 6.26 7.52 11.02 13.43 15.58 15.99 14.28 11.56 8.77 6.35 10.22 VAPOUR PRESSURE (HPA) 9.52 9.93 10.16 12.17 17.71 21.43 24.66 25.32 22.83 18.62 14.19 10.30 16.40 SATURATION DEF. (HPA) 1.35 3.41 1.76 2.68 4.78 6.88 10.30 8.07 5.02 4.18 2.30 2.12 4.40 RELATIVE HUMIDITY (MEAN %) 88 80 86 83 81 78 72 78 84 83 88 85 82 RELATIVE HUMIDITY (MAX. %) 94 93 95 94 94 93 89 92 94 95 96 94 94 RELATIVE HUMIDITY (MIN. %) 79 61 74 65 64 62 56 64 70 67 76 70 67 RELATIVE HUMIDITY (MEAN% 03UTC) 91 85 92 90 89 89 86 88 91 92 92 89 90 RELATIVE HUMIDITY (MEAN% 09UTC) 83 70 80 72 69 66 59 67 75 72 80 79 73 RELATIVE HUMIDITY (MEAN% 15UTC) 88 80 85 82 79 73 65 75 79 78 86 85 80 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 106.4 18.4 133.7 31.0 54.0 73.2 1.2 184.2 209.3 103.0 313.1 120.2 1347.7 DAYS WITH PRECIPITATION >=10 4 1 5 2 1 4 0 5 8 2 8 5 45 DAYS WITH PRECIPITATION >= 5 8 1 9 2 4 6 0 7 11 2 9 8 67 DAYS WITH PRECIPITATION >= 1 12 3 12 4 8 8 1 9 12 3 11 15 98 DAYS WITH PRECIPITATION 14 4 18 6 11 8 2 9 14 4 14 16 120 GREATEST DAILY PRECIPITATION 23.0 16.0 28.0 13.0 27.0 21.0 1.0 62.0 38.0 70.0 92.0 23.0 92.0 DAY 1 23 13 8 22 22 29 16 29 10 11 2 DAY WITH THUNDER STORM 0 1 0 0 3 4 0 1 0 4 3 0 16 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 1 3 0 0 0 0 0 0 0 0 0 1 5 WIND DIRECTION (PREVAILING) 360 45 360 360 45 45 360 45 360 180 270 270 360 PREVAILING WIND SPEED(KNOTS) 4.7 4.1 3.7 4.3 3.3 3.4 4.9 4.7 8.9 1.3 2.0 3.8 5.1 PREVAILING WIND PERCENT 34.7 23.7 33.9 29.6 35.3 37.9 25.0 21.8 22.1 30.2 22.1 24.2 20.7 CALMS PERCENT OF WIND 0.0 0.4 0.4 0.0 0.0 0.0 0.0 1.2 0.4 1.2 1.3 1.6 0.6 NO. OF WIND OBSERVATION 248 224 242 240 238 240 248 248 240 248 240 248 2904 VECTOR WIND DIRECTION (MEAN) 334 41 16 34 42 29 33 355 336 7 333 304 2 VECTOR WIND MAGNITUDE(KNOTS) 1.9 0.9 1.7 2.3 1.9 1.7 1.8 2.2 2.5 0.5 2.5 2.0 1.5 WIND STEADINESES (MEAN %) 55.9 28.1 54.8 62.2 61.3 50.0 51.4 48.9 53.2 20.8 50.0 51.3 41.7 WIND SPEED (MEAN KNOTS) 3.4 3.2 3.1 3.7 3.1 3.4 3.5 4.5 4.7 2.4 5.0 3.9 3.6 FASTEST WIND DIRECTION 340 130 340 70 70 90 360 330 310 340 360 340 360 FASTEST WIND SPEED (KNOTS) 24 24 12 21 16 18 21 38 36 21 46 38 46 DAY 16 23 4 13 9 5 29 16 28 10 8 14 DAYS WITH SKY CLEAR (0-2)/8 5 7 1 3 8 17 23 15 8 16 7 8 118 DAYS WITH P.CLOUDY (3-6)/8 4 10 6 10 14 5 3 5 6 9 5 6 83 DAYS WITH CLOUDY (7-8)/8 22 11 24 17 9 8 5 11 16 6 18 17 164 DAYS WITH VISIBILITY =< 2 KM 10 4 11 9 8 5 1 8 6 3 12 9 86 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1026.1 1018.3 1021.2 1019.9 1018.4 1015.0 1009.9 1011.7 1017.5 1021.5 1021.7 1020.5 1018.5 MAX. QFE PRESSURE IN HPA 1037.8 1029.5 1032.7 1031.4 1032.3 1025.9 1015.6 1022.5 1028.7 1031.0 1036.7 1045.8 1045.8 DAY-HOUR 8-21 1- 6 22-21 1- 6 26-21 21-21 16-21 17-21 29-18 10-18 12- 6 1-15 MIN. QFE PRESSURE IN HPA 1013.3 998.3 1011.3 1005.2 1008.4 1006.3 1003.2 1001.5 1010.1 1014.8 1006.1 1007.9 998.3 DAY-HOUR 16-12 22-21 3-12 22-12 3- 3 28-15 31-15 1-15 1-12 29-18 22-18 18- 3 MEAN QNH PRESSURE IN HPA 1022.6 1014.8 1017.7 1016.4 1015.0 1011.6 1006.4 1008.3 1014.1 1018.0 1018.2 1017.0 1015.0 MAX. QNH PRESSURE IN HPA 1034.3 1026.0 1029.2 1027.9 1028.8 1022.4 1012.2 1019.0 1025.2 1027.5 1033.2 1042.3 1042.3 DAY-HOUR 8-21 1- 6 22-21 1- 6 26-21 21-21 16-21 17-21 29-18 10-18 12- 6 1-15 MIN. QNH PRESSURE IN HPA 1009.9 994.9 1007.9 1001.8 1005.0 1002.9 999.8 998.1 1006.7 1011.4 1002.7 1004.5 994.9 DAY-HOUR 16-12 22-21 3-12 22-12 3- 3 28-15 31-15 1-15 1-12 29-18 22-18 18- 3 MEAN QFF PRESSURE IN HPA 1022.8 1015.1 1018.0 1016.7 1015.3 1012.0 1006.9 1008.7 1014.5 1018.4 1018.6 1017.3 1015.3 MAX. QFF PRESSURE IN HPA 1034.5 1026.2 1029.5 1028.2 1029.1 1022.8 1012.6 1019.4 1025.6 1027.8 1033.4 1042.5 1042.5 DAY-HOUR 8-21 1- 6 22-21 1- 6 26-21 21-21 16-21 17-21 29-18 10-18 12- 6 1-15 MIN. QFF PRESSURE IN HPA 1010.1 995.3 1008.1 1002.1 1005.3 1003.3 1000.2 998.6 1007.1 1011.7 1003.0 1004.8 995.3 DAY-HOUR 16-12 22-21 3-12 22-12 3- 3 28-15 31-15 1-15 1-12 29-18 22-18 18- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1026.0 1018.4 1022.0 1020.1 1017.6 1015.2 1009.9 1011.8 1017.4 1021.4 1021.4 1020.5 1018.5 MAX. QFE PRESSURE IN HPA 1037.4 1029.2 1031.7 1030.5 1025.7 1025.0 1014.8 1020.9 1027.5 1030.7 1036.4 1045.2 1045.2 DAY 9 1 23 13 11 22 17 18 30 11 12 2 MIN. QFE PRESSURE IN HPA 1016.5 999.1 1013.0 1008.5 1008.8 1007.9 1004.6 1002.6 1012.1 1014.8 1010.3 1008.0 999.1 DAY 13 23 12 22 3 4 29 2 1 30 23 18 MEAN QNH PRESSURE IN HPA 1022.5 1015.0 1018.5 1016.6 1014.2 1011.7 1006.5 1008.4 1013.9 1017.9 1017.9 1017.0 1015.0 MAX. QNH PRESSURE IN HPA 1033.9 1025.7 1028.2 1027.0 1022.2 1021.5 1011.4 1017.4 1024.0 1027.2 1032.9 1041.7 1041.7 DAY 9 1 23 13 11 22 17 18 30 11 12 2 MIN. QNH PRESSURE IN HPA 1013.0 995.7 1009.6 1005.1 1005.4 1004.5 1001.2 999.2 1008.7 1011.4 1006.9 1004.6 995.7 DAY 13 23 12 22 3 4 29 2 1 30 23 18 MEAN QFF PRESSURE IN HPA 1022.7 1015.3 1018.8 1016.9 1014.5 1012.1 1006.9 1008.8 1014.3 1018.3 1018.3 1017.3 1015.4 MAX. QFF PRESSURE IN HPA 1034.1 1025.9 1028.5 1027.3 1022.6 1021.9 1011.8 1017.8 1024.4 1027.5 1033.1 1041.8 1041.8 DAY 9 1 23 13 11 22 17 18 30 11 12 2 MIN. QFF PRESSURE IN HPA 1013.3 996.1 1009.8 1005.4 1005.7 1004.9 1001.6 999.7 1009.1 1011.7 1007.2 1004.9 996.1 DAY 13 23 12 22 3 4 29 2 1 30 23 18 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1025.8 1018.0 1021.0 1020.1 1018.4 1015.3 1010.3 1012.1 1017.6 1021.6 1021.5 1020.6 1018.5 MAX. QFE PRESSURE IN HPA 1036.8 1029.0 1031.0 1031.1 1029.3 1024.8 1015.3 1020.8 1027.4 1030.4 1036.3 1045.3 1045.3 DAY 9 1 22 1 27 22 17 18 30 11 12 2 MIN. QFE PRESSURE IN HPA 1015.4 1001.9 1012.4 1007.6 1008.4 1007.4 1004.6 1003.5 1011.8 1015.3 1010.0 1007.9 1001.9 DAY 13 23 16 22 3 4 29 1 1 30 24 18 MEAN QNH PRESSURE IN HPA 1022.3 1014.6 1017.5 1016.6 1015.0 1011.9 1006.8 1008.6 1014.2 1018.1 1018.1 1017.1 1015.1 MAX. QNH PRESSURE IN HPA 1033.3 1025.5 1027.5 1027.6 1025.8 1021.3 1011.9 1017.3 1023.9 1026.9 1032.8 1041.8 1041.8 DAY 9 1 22 1 27 22 17 18 30 11 12 2 MIN. QNH PRESSURE IN HPA 1012.0 998.5 1009.0 1004.2 1005.0 1004.0 1001.2 1000.1 1008.4 1011.9 1006.6 1004.5 998.5 DAY 13 23 16 22 3 4 29 1 1 30 24 18 MEAN QFF PRESSURE IN HPA 1022.5 1014.8 1017.7 1016.9 1015.3 1012.3 1007.3 1009.1 1014.6 1018.5 1018.4 1017.3 1015.4 MAX. QFF PRESSURE IN HPA 1033.5 1025.7 1027.7 1027.9 1026.1 1021.7 1012.3 1017.7 1024.2 1027.2 1033.0 1041.9 1041.9 DAY 9 1 22 1 27 22 17 18 30 11 12 2 MIN. QFF PRESSURE IN HPA 1012.2 998.8 1009.2 1004.5 1005.3 1004.4 1001.6 1000.5 1008.8 1012.2 1006.9 1004.8 998.8 DAY 13 23 16 22 3 4 29 1 1 30 24 18 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1027.0 1018.9 1021.5 1021.0 1019.1 1015.8 1010.6 1012.5 1018.4 1022.5 1022.6 1021.7 1019.3 MAX. QFE PRESSURE IN HPA 1037.4 1029.5 1032.3 1031.4 1028.7 1024.9 1015.6 1021.0 1028.0 1030.8 1036.7 1045.3 1045.3 DAY 9 1 22 1 8 22 17 17 30 11 12 2 MIN. QFE PRESSURE IN HPA 1016.5 1005.4 1012.8 1007.9 1009.0 1007.8 1005.4 1004.1 1011.7 1016.2 1010.6 1010.2 1004.1 DAY 16 11 16 22 3 4 29 1 1 7 24 18 MEAN QNH PRESSURE IN HPA 1023.6 1015.5 1018.1 1017.5 1015.6 1012.3 1007.2 1009.1 1014.9 1019.0 1019.2 1018.2 1015.8 MAX. QNH PRESSURE IN HPA 1033.9 1026.0 1028.8 1027.9 1025.2 1021.4 1012.2 1017.5 1024.5 1027.3 1033.2 1041.8 1041.8 DAY 9 1 22 1 8 22 17 17 30 11 12 2 MIN. QNH PRESSURE IN HPA 1013.0 1002.0 1009.4 1004.5 1005.6 1004.4 1002.0 1000.7 1008.3 1012.7 1007.2 1006.8 1000.7 DAY 16 11 16 22 3 4 29 1 1 7 24 18 MEAN QFF PRESSURE IN HPA 1023.7 1015.7 1018.3 1017.8 1016.0 1012.7 1007.6 1009.5 1015.3 1019.4 1019.5 1018.5 1016.2 MAX. QFF PRESSURE IN HPA 1034.1 1026.2 1029.1 1028.2 1025.6 1021.8 1012.6 1017.9 1024.9 1027.6 1033.4 1041.9 1041.9 DAY 9 1 22 1 8 22 17 17 30 11 12 2 MIN. QFF PRESSURE IN HPA 1013.3 1002.3 1009.6 1004.8 1005.9 1004.8 1002.4 1001.2 1008.7 1013.1 1007.5 1007.1 1001.2 DAY 16 11 16 22 3 4 29 1 1 7 24 18 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1026.3 1018.1 1021.0 1020.4 1019.0 1015.5 1010.3 1012.1 1018.0 1021.8 1021.8 1020.7 1018.7 MAX. QFE PRESSURE IN HPA 1035.8 1028.2 1032.4 1030.0 1029.3 1024.7 1015.2 1021.5 1027.0 1030.7 1035.3 1042.2 1042.2 DAY 9 1 22 12 26 21 8 17 30 10 12 2 MIN. QFE PRESSURE IN HPA 1015.1 1005.0 1012.0 1006.4 1009.0 1008.0 1005.4 1003.9 1010.9 1015.9 1009.5 1009.1 1003.9 DAY 16 11 16 22 3 4 29 1 1 6 22 9 MEAN QNH PRESSURE IN HPA 1022.8 1014.7 1017.5 1016.9 1015.6 1012.0 1006.9 1008.7 1014.5 1018.3 1018.3 1017.3 1015.3 MAX. QNH PRESSURE IN HPA 1032.3 1024.7 1028.9 1026.5 1025.8 1021.2 1011.8 1018.0 1023.5 1027.2 1031.8 1038.7 1038.7 DAY 9 1 22 12 26 21 8 17 30 10 12 2 MIN. QNH PRESSURE IN HPA 1011.7 1001.6 1008.6 1003.0 1005.6 1004.6 1002.0 1000.5 1007.5 1012.4 1006.1 1005.7 1000.5 DAY 16 11 16 22 3 4 29 1 1 6 22 9 MEAN QFF PRESSURE IN HPA 1022.9 1014.9 1017.8 1017.2 1015.9 1012.4 1007.3 1009.1 1014.9 1018.7 1018.7 1017.5 1015.6 MAX. QFF PRESSURE IN HPA 1032.5 1024.9 1029.2 1026.8 1026.1 1021.6 1012.2 1018.4 1023.9 1027.5 1032.1 1038.9 1038.9 DAY 9 1 22 24 26 21 8 17 30 10 12 2 MIN. QFF PRESSURE IN HPA 1011.9 1001.9 1008.8 1003.3 1005.9 1005.0 1002.4 1001.0 1007.9 1012.9 1006.4 1006.0 1001.0 DAY 16 11 16 22 3 4 29 1 1 6 22 9 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1025.3 1017.3 1020.3 1019.2 1018.2 1014.6 1009.3 1011.1 1016.8 1020.8 1021.1 1019.7 1017.8 MAX. QFE PRESSURE IN HPA 1034.6 1027.0 1031.5 1029.7 1030.0 1025.2 1014.5 1021.4 1026.7 1029.7 1035.6 1042.7 1042.7 DAY 8 18 22 12 26 21 8 17 29 10 11 1 MIN. QFE PRESSURE IN HPA 1013.3 1003.1 1011.3 1005.2 1009.2 1007.1 1004.1 1002.5 1010.1 1015.1 1007.6 1008.4 1002.5 DAY 16 11 3 22 3 28 31 1 1 29 22 12 MEAN QNH PRESSURE IN HPA 1021.9 1013.8 1016.8 1015.8 1014.8 1011.1 1005.9 1007.6 1013.3 1017.3 1017.6 1016.2 1014.3 MAX. QNH PRESSURE IN HPA 1031.1 1023.5 1028.0 1026.2 1026.5 1021.7 1011.1 1017.9 1023.2 1026.2 1032.1 1039.2 1039.2 DAY 8 18 22 12 26 21 8 17 29 10 11 1 MIN. QNH PRESSURE IN HPA 1009.9 999.7 1007.9 1001.8 1005.8 1003.7 1000.7 999.1 1006.7 1011.7 1004.2 1005.0 999.1 DAY 16 11 3 22 3 28 31 1 1 29 22 12 MEAN QFF PRESSURE IN HPA 1022.1 1014.1 1017.5 1016.0 1014.9 1011.5 1006.3 1008.1 1013.7 1017.7 1017.9 1016.5 1014.7 MAX. QFF PRESSURE IN HPA 1031.3 1023.8 1028.3 1026.4 1024.8 1022.1 1011.5 1018.3 1023.6 1026.6 1032.4 1039.4 1039.4 DAY 8 18 22 12 8 21 8 17 29 10 11 1 MIN. QFF PRESSURE IN HPA 1010.1 1000.0 1008.1 1002.1 1006.1 1004.1 1001.1 999.6 1007.1 1012.0 1004.5 1005.3 999.6 DAY 16 11 3 22 3 28 31 1 1 29 22 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1025.8 1018.0 1020.6 1018.9 1018.0 1014.2 1008.9 1010.7 1017.1 1021.0 1021.6 1020.1 1017.9 MAX. QFE PRESSURE IN HPA 1036.3 1028.7 1031.5 1029.6 1031.5 1025.0 1014.5 1021.4 1028.1 1030.2 1036.2 1045.8 1045.8 DAY 8 28 22 11 26 21 8 17 29 10 11 1 MIN. QFE PRESSURE IN HPA 1014.9 1002.3 1011.6 1005.5 1009.9 1006.3 1003.2 1001.5 1010.5 1015.0 1006.9 1008.5 1001.5 DAY 16 22 11 22 3 28 31 1 1 29 22 17 MEAN QNH PRESSURE IN HPA 1022.4 1014.6 1017.2 1015.4 1014.6 1010.8 1005.5 1007.3 1013.6 1017.5 1018.1 1016.7 1014.5 MAX. QNH PRESSURE IN HPA 1032.8 1025.2 1028.0 1026.1 1028.0 1021.5 1011.1 1017.9 1024.6 1026.7 1032.7 1042.3 1042.3 DAY 8 28 22 11 26 21 8 17 29 10 11 1 MIN. QNH PRESSURE IN HPA 1011.5 998.9 1008.2 1002.1 1006.5 1002.9 999.8 998.1 1007.1 1011.6 1003.5 1005.1 998.1 DAY 16 22 11 22 3 28 31 1 1 29 22 17 MEAN QFF PRESSURE IN HPA 1022.6 1014.8 1017.4 1015.7 1014.9 1011.2 1005.9 1007.7 1014.0 1017.9 1018.4 1016.9 1014.8 MAX. QFF PRESSURE IN HPA 1033.0 1025.5 1028.2 1026.3 1028.3 1021.9 1011.5 1018.3 1025.0 1027.1 1032.9 1042.5 1042.5 DAY 8 28 22 11 26 21 8 17 29 10 11 1 MIN. QFF PRESSURE IN HPA 1011.7 999.2 1008.4 1002.4 1006.8 1003.3 1000.2 998.6 1007.5 1011.9 1003.8 1005.3 998.6 DAY 16 22 11 22 3 28 31 1 1 29 22 17 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1026.1 1018.5 1021.4 1019.6 1018.5 1014.7 1009.6 1011.4 1017.5 1021.4 1022.0 1020.4 1018.4 MAX. QFE PRESSURE IN HPA 1037.2 1029.0 1032.0 1030.3 1031.3 1025.6 1015.0 1022.1 1028.7 1031.0 1036.5 1045.2 1045.2 DAY 8 28 22 12 26 21 16 17 29 10 11 1 MIN. QFE PRESSURE IN HPA 1018.1 1000.0 1012.1 1009.0 1010.1 1006.5 1003.4 1001.8 1011.6 1014.8 1006.1 1008.6 1000.0 DAY 12 22 11 21 3 28 31 1 1 29 22 17 MEAN QNH PRESSURE IN HPA 1022.6 1015.0 1018.0 1016.1 1015.1 1011.2 1006.2 1008.0 1014.0 1017.9 1018.6 1016.9 1015.0 MAX. QNH PRESSURE IN HPA 1033.7 1025.5 1028.5 1026.8 1027.8 1022.1 1011.6 1018.6 1025.2 1027.5 1033.0 1041.7 1041.7 DAY 8 28 22 12 26 21 16 17 29 10 11 1 MIN. QNH PRESSURE IN HPA 1014.6 996.6 1008.7 1005.6 1006.7 1003.1 1000.0 998.4 1008.2 1011.4 1002.7 1005.2 996.6 DAY 12 22 11 21 3 28 31 1 1 29 22 17 MEAN QFF PRESSURE IN HPA 1022.8 1015.3 1018.2 1016.4 1015.4 1011.7 1006.6 1008.4 1014.4 1018.3 1018.9 1017.2 1015.3 MAX. QFF PRESSURE IN HPA 1033.9 1025.8 1028.8 1027.1 1028.1 1022.5 1012.0 1019.0 1025.6 1027.8 1033.2 1041.9 1041.9 DAY 8 28 22 12 26 21 16 17 29 10 11 1 MIN. QFF PRESSURE IN HPA 1014.9 996.9 1008.9 1005.9 1007.0 1003.5 1000.4 998.9 1008.6 1011.7 1003.0 1005.4 996.9 DAY 12 22 11 21 3 28 31 1 1 29 22 17 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1026.3 1018.8 1021.9 1019.8 1018.4 1015.0 1010.1 1012.0 1017.8 1021.5 1021.8 1020.4 1018.6 MAX. QFE PRESSURE IN HPA 1037.8 1029.4 1032.7 1030.6 1032.3 1025.9 1015.6 1022.5 1028.3 1030.9 1036.4 1045.2 1045.2 DAY 8 28 22 12 26 21 16 17 29 10 11 1 MIN. QFE PRESSURE IN HPA 1017.6 998.3 1012.9 1009.1 1009.3 1006.8 1003.8 1002.1 1012.1 1014.8 1006.5 1008.5 998.3 DAY 12 22 11 21 2 28 31 1 1 29 22 17 MEAN QNH PRESSURE IN HPA 1022.8 1015.3 1018.4 1016.4 1015.0 1011.6 1006.7 1008.5 1014.3 1018.0 1018.3 1016.9 1015.2 MAX. QNH PRESSURE IN HPA 1034.3 1025.9 1029.2 1027.1 1028.8 1022.4 1012.2 1019.0 1024.8 1027.4 1032.9 1041.7 1041.7 DAY 8 28 22 12 26 21 16 17 29 10 11 1 MIN. QNH PRESSURE IN HPA 1014.1 994.9 1009.5 1005.7 1005.9 1003.4 1000.4 998.7 1008.7 1011.4 1003.1 1005.1 994.9 DAY 12 22 11 21 2 28 31 1 1 29 22 17 MEAN QFF PRESSURE IN HPA 1023.0 1015.6 1018.7 1016.7 1015.3 1012.0 1007.1 1009.0 1014.7 1018.4 1018.6 1017.2 1015.5 MAX. QFF PRESSURE IN HPA 1034.5 1026.2 1029.5 1027.4 1029.1 1022.8 1012.6 1019.4 1025.2 1027.7 1033.1 1041.8 1041.8 DAY 8 28 22 12 26 21 16 17 29 10 11 1 MIN. QFF PRESSURE IN HPA 1014.4 995.3 1009.7 1006.0 1006.2 1003.8 1000.9 999.2 1009.1 1011.7 1003.4 1005.4 995.3 DAY 12 22 11 21 2 28 31 1 8 29 22 17 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.6 6.9 6.5 12.7 17.0 22.7 25.2 25.8 20.4 17.6 12.9 7.8 15.3 MINIMUN AIR TEMPERATURE (C) 5.1 4.6 4.6 10.1 14.0 18.7 21.0 21.6 16.9 13.5 8.5 4.5 11.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 6 15 23 3 0 0 0 47 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 1 1 0 0 0 0 0 0 0 0 1 3 TEMPERATURE RECORDS LOWEST(C) 2.0 0.0 0.0 2.0 8.0 16.0 19.0 18.0 11.0 10.0 3.0 0.0 0.0 DAY 17 13 25 1 2 1 2 9 26 23 18 13 MAXIMUM AIR TEMPERATURE (C) 12.5 9.3 8.9 16.3 20.3 26.3 29.0 29.9 23.6 21.4 17.3 10.9 18.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 1 13 23 2 0 0 0 39 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 23.0 23.0 23.0 26.0 25.0 31.0 32.0 32.0 31.0 26.0 28.0 25.0 32.0 DAY 30 3 4 7 17 25 18 3 1 4 8 5 DIF. BETWEEN (MAX.-MIN.) (C) 7.4 4.7 4.3 6.2 6.3 7.6 8.0 8.3 6.7 7.9 8.8 6.4 6.9 MEAN DAILY TEMP. (MDT) (C) 8.8 6.9 6.8 13.2 17.1 22.5 25.0 25.7 20.3 17.4 12.9 7.7 15.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.0 52.5 124.0 147.0 29.5 0.0 0.5 0.0 353.5 HEATING DEG. DAYS(BASE 18 0C) 286.5 321.5 347.5 144.5 42.5 0.0 0.0 0.0 16.0 38.0 158.0 319.5 1674.0 DEWPOINT (MEAN C) 5.7 4.3 4.6 10.0 13.7 17.7 19.9 21.3 17.8 14.7 9.4 5.2 12.0 MIXING RATIO (G/KG) 5.69 5.14 5.27 7.69 9.78 12.80 14.73 16.13 12.91 10.46 7.49 5.51 9.47 VAPOUR PRESSURE (HPA) 9.26 8.38 8.58 12.42 15.75 20.46 23.42 25.61 20.68 16.89 12.14 9.01 15.22 SATURATION DEF. (HPA) 2.09 1.73 1.20 2.61 3.90 7.40 8.90 8.01 3.87 3.55 3.16 1.88 4.03 RELATIVE HUMIDITY (MEAN %) 84 85 89 85 82 75 74 78 86 84 81 85 82 RELATIVE HUMIDITY (MAX. %) 94 93 95 94 93 90 89 92 95 95 94 95 93 RELATIVE HUMIDITY (MIN. %) 71 76 80 70 68 60 59 60 73 71 60 69 68 RELATIVE HUMIDITY (MEAN% 03UTC) 87 89 93 90 91 88 85 87 93 92 86 88 89 RELATIVE HUMIDITY (MEAN% 09UTC) 76 81 84 78 72 65 68 68 78 72 67 73 74 RELATIVE HUMIDITY (MEAN% 15UTC) 82 83 88 81 77 67 67 74 82 82 81 86 79 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 329.2 188.6 253.8 113.1 234.0 5.2 66.0 52.0 960.0 259.0 85.4 351.5 2897.8 DAYS WITH PRECIPITATION >=10 7 4 12 4 5 0 2 1 17 4 2 11 69 DAYS WITH PRECIPITATION >= 5 7 10 14 5 6 0 2 2 17 4 4 13 84 DAYS WITH PRECIPITATION >= 1 9 16 20 10 11 2 4 6 19 10 8 16 131 DAYS WITH PRECIPITATION 13 18 23 12 11 3 4 6 21 12 9 17 149 GREATEST DAILY PRECIPITATION 90.0 60.0 32.0 43.0 80.0 4.0 43.0 36.0 183.0 128.0 31.0 66.0 183.0 DAY 14 25 31 12 28 13 28 12 4 19 2 18 DAY WITH THUNDER STORM 0 0 0 1 1 2 0 1 4 0 0 0 9 DAYS WITH SNOW OR SLEET 0 0 3 0 0 0 0 0 0 0 0 0 3 DAYS WITH DUST 2 0 0 0 0 2 1 0 0 0 0 1 6 WIND DIRECTION (PREVAILING) 360 360 315 360 360 360 360 45 360 180 180 315 360 PREVAILING WIND SPEED(KNOTS) 5.7 7.2 14.3 4.4 4.0 3.2 6.6 4.8 8.3 1.7 2.1 10.7 6.4 PREVAILING WIND PERCENT 25.0 36.6 37.5 30.0 25.4 25.4 28.6 30.6 37.1 28.6 30.8 29.4 25.9 CALMS PERCENT OF WIND 0.8 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 317 329 334 16 33 46 9 29 350 343 319 317 346 VECTOR WIND MAGNITUDE(KNOTS) 3.0 4.0 6.8 1.7 2.1 2.3 2.1 2.0 3.1 2.2 1.7 4.2 2.6 WIND STEADINESES (MEAN %) 57.7 74.1 79.1 50.0 60.0 65.7 41.2 50.0 58.5 52.4 41.5 67.7 53.1 WIND SPEED (MEAN KNOTS) 5.2 5.4 8.6 3.4 3.5 3.5 5.1 4.0 5.3 4.2 4.1 6.2 4.9 FASTEST WIND DIRECTION 310 340 360 50 70 330 330 30 360 360 360 360 360 FASTEST WIND SPEED (KNOTS) 35 35 45 26 21 18 22 18 36 32 32 38 45 DAY 13 29 13 27 25 26 15 15 4 18 9 10 DAYS WITH SKY CLEAR (0-2)/8 8 4 2 4 11 18 12 16 7 12 6 4 104 DAYS WITH P.CLOUDY (3-6)/8 9 4 2 11 7 9 9 12 4 9 10 6 92 DAYS WITH CLOUDY (7-8)/8 14 21 27 15 13 3 10 3 19 10 14 21 170 DAYS WITH VISIBILITY =< 2 KM 8 13 3 4 3 1 0 1 12 4 5 13 67 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1022.2 1021.8 1021.7 1017.4 1017.4 1015.6 1012.9 1014.1 1018.7 1022.3 1022.6 1026.9 1019.5 MAX. QFE PRESSURE IN HPA 1033.7 1032.9 1031.8 1029.3 1023.3 1024.5 1020.6 1023.0 1033.2 1030.5 1042.4 1039.5 1042.4 DAY-HOUR 21-18 26- 9 13-18 1- 9 15- 6 11- 6 29- 6 8- 9 26- 6 19- 6 12- 6 19- 6 MIN. QFE PRESSURE IN HPA 1001.5 1006.6 1008.7 1003.6 1008.2 1001.7 1002.9 1004.2 1006.4 1014.2 1003.8 1004.1 1001.5 DAY-HOUR 30-12 7-15 4-12 25-21 3-18 25-18 19-12 4- 0 14-15 10-21 8- 9 5- 3 MEAN QNH PRESSURE IN HPA 1018.7 1018.4 1018.2 1013.9 1013.9 1012.1 1009.5 1010.7 1015.2 1018.8 1019.2 1023.4 1016.0 MAX. QNH PRESSURE IN HPA 1030.2 1029.4 1028.3 1025.8 1019.8 1021.0 1017.1 1019.5 1029.7 1027.0 1038.9 1036.0 1038.9 DAY-HOUR 21-18 26- 9 13-18 1- 9 15- 6 11- 6 29- 6 8- 9 26- 6 19- 6 12- 6 19- 6 MIN. QNH PRESSURE IN HPA 998.1 1003.2 1005.3 1000.2 1004.8 998.3 999.5 1000.8 1003.0 1010.8 1000.4 1000.7 998.1 DAY-HOUR 30-12 7-15 4-12 25-21 3-18 25-18 19-12 4- 0 14-15 10-21 8- 9 5- 3 MEAN QFF PRESSURE IN HPA 1018.9 1018.6 1018.4 1014.2 1014.3 1012.5 1009.9 1011.1 1015.6 1019.1 1019.4 1023.7 1016.3 MAX. QFF PRESSURE IN HPA 1030.4 1029.6 1028.5 1026.0 1020.2 1021.4 1017.5 1020.0 1030.0 1027.3 1039.1 1036.2 1039.1 DAY-HOUR 21-18 26- 9 13-18 1- 9 15- 6 11- 6 29- 6 8- 9 26- 6 19- 6 12- 6 19- 6 MIN. QFF PRESSURE IN HPA 998.4 1003.4 1005.6 1000.5 1005.1 998.7 1000.0 1001.2 1003.4 1011.1 1000.7 1001.0 998.4 DAY-HOUR 30-12 7-15 4-12 25-21 3-18 25-18 19-12 4- 0 14-15 10-21 8-12 5- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1022.0 1021.6 1021.5 1017.1 1017.4 1015.5 1013.0 1014.0 1018.1 1022.1 1022.3 1026.8 1019.3 MAX. QFE PRESSURE IN HPA 1033.1 1030.4 1030.9 1027.1 1021.8 1023.3 1019.2 1020.1 1030.5 1028.8 1037.2 1039.1 1039.1 DAY 22 19 14 1 15 12 2 8 29 20 13 19 MIN. QFE PRESSURE IN HPA 1008.4 1009.8 1011.6 1003.9 1009.2 1003.0 1003.4 1004.2 1006.6 1014.3 1005.1 1006.6 1003.0 DAY 30 29 4 26 4 26 19 4 15 11 8 5 MEAN QNH PRESSURE IN HPA 1018.5 1018.1 1018.0 1013.7 1013.9 1012.1 1009.6 1010.6 1014.6 1018.6 1018.8 1023.3 1015.8 MAX. QNH PRESSURE IN HPA 1029.6 1026.9 1027.4 1023.6 1018.3 1019.8 1015.7 1016.6 1027.0 1025.3 1033.7 1035.6 1035.6 DAY 22 19 14 1 15 12 2 8 29 20 13 19 MIN. QNH PRESSURE IN HPA 1005.0 1006.4 1008.2 1000.5 1005.8 999.6 1000.0 1000.8 1003.2 1010.9 1001.7 1003.2 999.6 DAY 30 29 4 26 4 26 19 4 15 11 8 5 MEAN QFF PRESSURE IN HPA 1018.8 1018.4 1018.2 1014.0 1014.3 1012.5 1010.0 1011.0 1015.0 1019.0 1019.1 1023.5 1016.1 MAX. QFF PRESSURE IN HPA 1029.9 1027.1 1027.6 1023.8 1018.7 1020.2 1016.2 1017.1 1027.3 1025.6 1033.9 1035.8 1035.8 DAY 22 19 14 1 15 12 2 8 29 20 13 19 MIN. QFF PRESSURE IN HPA 1005.2 1006.6 1008.4 1000.8 1006.1 1000.0 1000.4 1001.2 1003.6 1011.2 1002.1 1003.5 1000.0 DAY 30 29 4 26 4 26 19 4 15 11 8 5 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1022.1 1021.5 1021.3 1017.1 1017.6 1015.9 1013.4 1014.5 1018.7 1022.3 1022.8 1027.0 1019.5 MAX. QFE PRESSURE IN HPA 1032.6 1030.4 1030.5 1027.9 1022.3 1023.7 1019.5 1021.4 1031.2 1029.0 1039.7 1038.7 1039.7 DAY 22 18 14 1 15 11 29 8 26 19 12 19 MIN. QFE PRESSURE IN HPA 1005.8 1009.6 1010.4 1004.5 1009.9 1004.2 1003.3 1004.9 1006.7 1015.2 1004.6 1004.1 1003.3 DAY 30 29 4 26 4 26 19 4 13 11 8 5 MEAN QNH PRESSURE IN HPA 1018.6 1018.0 1017.8 1013.6 1014.1 1012.4 1009.9 1011.0 1015.3 1018.8 1019.4 1023.5 1016.0 MAX. QNH PRESSURE IN HPA 1029.1 1026.9 1027.0 1024.4 1018.8 1020.2 1016.0 1017.9 1027.7 1025.5 1036.2 1035.2 1036.2 DAY 22 18 14 1 15 11 29 8 26 19 12 19 MIN. QNH PRESSURE IN HPA 1002.4 1006.2 1007.0 1001.1 1006.5 1000.8 999.9 1001.5 1003.3 1011.8 1001.2 1000.7 999.9 DAY 30 29 4 26 4 26 19 4 13 11 8 5 MEAN QFF PRESSURE IN HPA 1018.8 1018.2 1018.0 1013.9 1014.5 1012.8 1010.3 1011.5 1015.7 1019.2 1019.6 1023.7 1016.4 MAX. QFF PRESSURE IN HPA 1029.4 1027.1 1027.2 1024.6 1019.2 1020.6 1016.4 1018.4 1028.0 1025.8 1036.4 1035.4 1036.4 DAY 22 18 14 1 15 11 29 8 26 19 12 19 MIN. QFF PRESSURE IN HPA 1002.6 1006.4 1007.2 1001.4 1006.8 1001.2 1000.3 1001.9 1003.7 1012.1 1001.5 1001.0 1000.3 DAY 30 29 4 26 4 26 19 4 13 11 8 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1023.1 1022.6 1022.2 1018.2 1018.3 1016.3 1013.8 1015.1 1019.7 1023.1 1024.0 1027.9 1020.4 MAX. QFE PRESSURE IN HPA 1032.6 1032.5 1030.0 1029.1 1023.3 1024.5 1020.6 1022.7 1033.2 1030.5 1042.4 1039.5 1042.4 DAY 22 18 14 1 15 11 29 8 26 19 12 19 MIN. QFE PRESSURE IN HPA 1003.9 1011.6 1010.1 1007.2 1011.6 1008.3 1003.7 1006.2 1007.0 1015.5 1005.7 1004.2 1003.7 DAY 30 10 4 26 4 25 19 4 13 15 8 5 MEAN QNH PRESSURE IN HPA 1019.7 1019.2 1018.8 1014.8 1014.8 1012.9 1010.3 1011.6 1016.2 1019.6 1020.5 1024.4 1016.9 MAX. QNH PRESSURE IN HPA 1029.1 1029.0 1026.5 1025.6 1019.8 1021.0 1017.1 1019.2 1029.7 1027.0 1038.9 1036.0 1038.9 DAY 22 18 14 1 15 11 29 8 26 19 12 19 MIN. QNH PRESSURE IN HPA 1000.5 1008.2 1006.7 1003.8 1008.2 1004.9 1000.3 1002.8 1003.6 1012.1 1002.3 1000.8 1000.3 DAY 30 10 4 26 4 25 19 4 13 15 8 5 MEAN QFF PRESSURE IN HPA 1019.9 1019.4 1019.0 1015.1 1015.2 1013.3 1010.7 1012.1 1016.6 1020.0 1020.8 1024.7 1017.2 MAX. QFF PRESSURE IN HPA 1029.4 1029.2 1026.7 1025.8 1020.2 1021.4 1017.5 1019.7 1030.0 1027.3 1039.1 1036.2 1039.1 DAY 22 18 14 1 15 11 29 8 26 19 12 19 MIN. QFF PRESSURE IN HPA 1000.8 1008.4 1006.9 1004.1 1008.5 1005.3 1000.7 1003.2 1004.0 1012.4 1002.7 1001.1 1000.7 DAY 30 10 4 26 4 25 19 4 13 15 8 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1022.4 1022.3 1022.1 1018.0 1017.9 1016.0 1013.3 1014.7 1019.2 1022.5 1023.1 1027.0 1019.9 MAX. QFE PRESSURE IN HPA 1030.8 1032.9 1030.4 1029.3 1023.1 1024.2 1020.5 1023.0 1032.5 1030.3 1041.6 1038.6 1041.6 DAY 16 26 13 1 15 11 29 8 26 19 12 18 MIN. QFE PRESSURE IN HPA 1001.8 1011.1 1009.2 1007.1 1010.8 1006.6 1003.4 1005.7 1007.4 1015.1 1003.8 1004.2 1001.8 DAY 30 7 4 26 3 25 19 25 13 31 8 5 MEAN QNH PRESSURE IN HPA 1019.0 1018.9 1018.6 1014.6 1014.4 1012.5 1009.8 1011.2 1015.8 1019.1 1019.6 1023.6 1016.4 MAX. QNH PRESSURE IN HPA 1027.3 1029.4 1026.9 1025.8 1019.6 1020.7 1017.0 1019.5 1029.0 1026.8 1038.1 1035.1 1038.1 DAY 16 26 13 1 15 11 29 8 26 19 12 18 MIN. QNH PRESSURE IN HPA 998.4 1007.7 1005.8 1003.7 1007.4 1003.2 1000.0 1002.3 1004.0 1011.7 1000.4 1000.8 998.4 DAY 30 7 4 26 3 25 19 25 13 31 8 5 MEAN QFF PRESSURE IN HPA 1019.2 1019.1 1019.0 1014.9 1014.8 1012.9 1010.3 1011.7 1016.2 1019.4 1019.9 1023.8 1016.7 MAX. QFF PRESSURE IN HPA 1027.5 1029.6 1027.1 1026.0 1020.0 1021.1 1017.4 1020.0 1029.3 1027.1 1038.3 1035.3 1038.3 DAY 16 26 13 1 15 11 29 8 26 19 12 18 MIN. QFF PRESSURE IN HPA 998.7 1007.9 1006.0 1004.0 1007.7 1003.6 1000.5 1002.7 1004.4 1012.0 1000.8 1001.1 998.7 DAY 30 7 4 26 3 25 19 25 13 31 8 5 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1021.5 1021.3 1021.2 1017.1 1017.0 1015.3 1012.4 1013.8 1018.4 1021.7 1022.0 1026.2 1019.0 MAX. QFE PRESSURE IN HPA 1030.3 1032.5 1030.8 1027.6 1022.5 1023.8 1019.8 1022.2 1031.7 1030.2 1040.4 1037.9 1040.4 DAY 16 26 13 1 21 11 29 8 26 19 12 18 MIN. QFE PRESSURE IN HPA 1001.5 1008.9 1008.7 1006.2 1008.9 1005.5 1002.9 1004.8 1006.8 1014.3 1003.8 1007.2 1001.5 DAY 30 7 4 25 3 25 19 25 14 31 8 9 MEAN QNH PRESSURE IN HPA 1018.0 1017.8 1017.8 1013.6 1013.5 1011.8 1008.9 1010.3 1014.9 1018.2 1018.5 1022.7 1015.5 MAX. QNH PRESSURE IN HPA 1026.8 1029.0 1027.3 1024.1 1019.0 1020.3 1016.3 1018.7 1028.2 1026.7 1036.9 1034.4 1036.9 DAY 16 26 13 1 21 11 29 8 26 19 12 18 MIN. QNH PRESSURE IN HPA 998.1 1005.5 1005.3 1002.8 1005.5 1002.1 999.5 1001.4 1003.4 1010.9 1000.4 1003.8 998.1 DAY 30 7 4 25 3 25 19 25 14 31 8 9 MEAN QFF PRESSURE IN HPA 1018.3 1018.1 1018.0 1013.9 1013.9 1012.2 1009.4 1010.8 1015.3 1018.6 1018.8 1022.9 1015.8 MAX. QFF PRESSURE IN HPA 1027.0 1029.2 1027.5 1024.3 1019.4 1020.7 1016.7 1019.2 1028.5 1027.0 1037.1 1034.6 1037.1 DAY 16 26 13 1 21 11 29 8 26 19 12 18 MIN. QFF PRESSURE IN HPA 998.4 1005.7 1005.6 1003.1 1005.8 1002.5 1000.0 1001.8 1003.8 1011.2 1000.7 1004.0 998.4 DAY 30 7 4 25 3 25 19 25 14 31 8 9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1021.9 1021.6 1021.4 1017.1 1016.7 1014.8 1012.0 1013.3 1018.3 1021.9 1022.2 1026.7 1019.0 MAX. QFE PRESSURE IN HPA 1031.5 1032.6 1030.7 1027.0 1022.2 1023.3 1019.1 1021.4 1030.8 1030.0 1039.9 1038.5 1039.9 DAY 21 26 13 15 21 11 29 8 26 19 12 18 MIN. QFE PRESSURE IN HPA 1002.6 1006.6 1009.9 1005.4 1008.4 1002.7 1003.5 1004.6 1006.4 1014.3 1004.5 1007.0 1002.6 DAY 30 7 4 25 2 25 19 3 14 10 7 9 MEAN QNH PRESSURE IN HPA 1018.4 1018.2 1018.0 1013.7 1013.2 1011.4 1008.6 1009.8 1014.8 1018.4 1018.8 1023.2 1015.5 MAX. QNH PRESSURE IN HPA 1028.0 1029.1 1027.2 1023.5 1018.7 1019.8 1015.6 1017.9 1027.3 1026.5 1036.4 1035.0 1036.4 DAY 21 26 13 15 21 11 29 8 26 19 12 18 MIN. QNH PRESSURE IN HPA 999.2 1003.2 1006.5 1002.0 1005.0 999.3 1000.1 1001.2 1003.0 1010.9 1001.1 1003.6 999.2 DAY 30 7 4 25 2 25 19 3 14 10 7 9 MEAN QFF PRESSURE IN HPA 1018.7 1018.4 1018.2 1013.9 1013.6 1011.8 1009.0 1010.3 1015.2 1018.7 1019.0 1023.5 1015.8 MAX. QFF PRESSURE IN HPA 1028.3 1029.3 1027.4 1023.8 1019.1 1020.2 1016.0 1018.4 1027.6 1026.8 1036.6 1035.2 1036.6 DAY 21 26 13 15 21 11 29 8 26 19 12 18 MIN. QFF PRESSURE IN HPA 999.5 1003.4 1006.7 1002.3 1005.3 999.7 1000.5 1001.6 1003.4 1011.2 1001.4 1003.8 999.5 DAY 30 7 4 25 2 25 19 3 14 10 7 9 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1022.5 1022.1 1021.9 1017.3 1017.4 1015.5 1012.8 1013.8 1018.8 1022.4 1022.4 1027.0 1019.5 MAX. QFE PRESSURE IN HPA 1033.7 1031.7 1031.8 1026.7 1022.6 1023.7 1019.7 1021.6 1030.2 1030.2 1039.1 1038.8 1039.1 DAY 21 18 13 12 21 11 29 8 26 19 12 18 MIN. QFE PRESSURE IN HPA 1006.3 1007.8 1011.7 1005.0 1008.2 1001.7 1004.6 1004.5 1007.1 1014.4 1005.5 1007.8 1001.7 DAY 30 7 4 25 3 25 18 3 14 10 7 9 MEAN QNH PRESSURE IN HPA 1019.0 1018.6 1018.4 1013.9 1013.9 1012.0 1009.3 1010.4 1015.3 1018.9 1018.9 1023.5 1016.0 MAX. QNH PRESSURE IN HPA 1030.2 1028.2 1028.3 1023.2 1019.1 1020.2 1016.2 1018.1 1026.7 1026.7 1035.6 1035.3 1035.6 DAY 21 18 13 12 21 11 29 8 26 19 12 18 MIN. QNH PRESSURE IN HPA 1002.9 1004.4 1008.3 1001.6 1004.8 998.3 1001.2 1001.1 1003.7 1011.0 1002.1 1004.4 998.3 DAY 30 7 4 25 3 25 18 3 14 10 7 9 MEAN QFF PRESSURE IN HPA 1019.2 1018.8 1018.6 1014.2 1014.2 1012.4 1009.8 1010.8 1015.7 1019.3 1019.2 1023.7 1016.3 MAX. QFF PRESSURE IN HPA 1030.4 1028.4 1028.5 1023.5 1019.5 1020.6 1016.6 1018.6 1027.0 1027.0 1035.8 1035.5 1035.8 DAY 21 26 13 15 21 11 29 8 26 19 12 18 MIN. QFF PRESSURE IN HPA 1003.2 1004.6 1008.5 1001.9 1005.1 998.7 1001.6 1001.5 1004.1 1011.3 1002.5 1004.6 998.7 DAY 30 7 4 25 3 25 18 3 14 10 7 9 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1022.1 1021.7 1022.0 1017.1 1017.2 1015.5 1013.0 1013.9 1018.6 1022.2 1022.4 1026.9 1019.4 MAX. QFE PRESSURE IN HPA 1033.4 1031.2 1031.5 1026.5 1022.2 1023.4 1019.4 1020.3 1030.3 1030.1 1038.4 1038.9 1038.9 DAY 21 18 13 15 15 11 29 8 28 19 12 18 MIN. QFE PRESSURE IN HPA 1008.9 1008.6 1012.6 1003.6 1008.7 1002.2 1003.9 1004.3 1007.1 1014.2 1005.9 1008.7 1002.2 DAY 30 7 3 25 3 25 18 3 14 10 7 4 MEAN QNH PRESSURE IN HPA 1018.7 1018.2 1018.5 1013.6 1013.7 1012.1 1009.6 1010.5 1015.1 1018.7 1018.9 1023.4 1015.9 MAX. QNH PRESSURE IN HPA 1029.9 1027.7 1028.0 1023.0 1018.7 1019.9 1015.9 1016.8 1026.8 1026.6 1034.9 1035.4 1035.4 DAY 21 18 13 15 15 11 29 8 28 19 12 18 MIN. QNH PRESSURE IN HPA 1005.5 1005.2 1009.2 1000.2 1005.3 998.8 1000.5 1000.9 1003.7 1010.8 1002.5 1005.3 998.8 DAY 30 7 3 25 3 25 18 3 14 10 7 4 MEAN QFF PRESSURE IN HPA 1018.9 1018.4 1018.7 1013.9 1014.1 1012.5 1010.0 1010.9 1015.5 1019.1 1019.2 1023.7 1016.2 MAX. QFF PRESSURE IN HPA 1030.2 1027.9 1028.2 1023.3 1019.1 1020.3 1016.3 1017.3 1027.1 1026.9 1035.1 1035.6 1035.6 DAY 21 18 13 15 15 11 29 29 28 19 12 18 MIN. QFF PRESSURE IN HPA 1005.8 1005.4 1009.4 1000.5 1005.6 999.3 1000.9 1001.4 1004.1 1011.1 1002.8 1005.5 999.3 DAY 30 7 3 25 3 25 18 3 14 10 7 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.5 6.6 8.2 12.9 19.8 22.4 25.5 25.8 25.4 17.9 12.1 9.2 15.9 MINIMUN AIR TEMPERATURE (C) 1.2 3.5 5.0 9.5 15.4 18.5 20.4 20.6 20.2 14.3 8.6 5.4 11.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 11 18 16 8 0 0 0 53 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 15 4 1 0 0 0 0 0 0 0 1 0 21 TEMPERATURE RECORDS LOWEST(C) -1.0 -2.0 -1.0 2.0 11.0 11.0 16.0 17.0 18.0 8.0 0.0 1.0 -2.0 DAY 8 6 30 1 1 5 4 16 28 13 22 30 MAXIMUM AIR TEMPERATURE (C) 7.2 9.0 10.8 16.2 23.4 26.3 29.7 30.9 30.2 21.9 15.7 13.3 19.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 1 7 19 25 24 1 0 0 77 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 12.0 14.0 24.0 24.0 31.0 32.0 33.0 35.0 32.0 30.0 21.0 22.0 35.0 DAY 28 28 17 19 9 28 26 5 9 1 1 16 DIF. BETWEEN (MAX.-MIN.) (C) 6.0 5.5 5.8 6.7 8.0 7.8 9.3 10.3 10.0 7.6 7.1 7.9 7.6 MEAN DAILY TEMP. (MDT) (C) 4.2 6.2 7.9 12.8 19.4 22.4 25.1 25.8 25.2 18.1 12.1 9.4 15.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 9.5 66.5 128.0 148.0 126.5 18.5 0.0 0.0 497.0 HEATING DEG. DAYS(BASE 18 0C) 427.5 329.5 313.5 155.5 14.0 8.5 0.0 0.0 0.0 48.0 176.0 268.0 1740.5 DEWPOINT (MEAN C) 2.7 4.7 5.9 9.9 16.8 18.8 20.7 21.6 21.5 15.8 10.5 7.3 13.0 MIXING RATIO (G/KG) 4.57 5.30 5.80 7.72 12.10 13.83 15.52 16.42 16.13 11.41 8.11 6.44 10.28 VAPOUR PRESSURE (HPA) 7.46 8.64 9.43 12.49 19.35 22.07 24.64 26.05 25.69 18.38 13.15 10.45 16.48 SATURATION DEF. (HPA) 1.01 1.18 1.66 2.77 4.04 5.79 8.52 7.85 7.24 2.86 1.48 1.52 3.83 RELATIVE HUMIDITY (MEAN %) 89 88 87 83 84 81 76 79 80 88 90 88 84 RELATIVE HUMIDITY (MAX. %) 96 96 96 94 95 93 90 91 93 97 97 97 95 RELATIVE HUMIDITY (MIN. %) 78 76 78 69 68 66 61 64 65 76 79 76 71 RELATIVE HUMIDITY (MEAN% 03UTC) 93 93 92 92 93 90 89 90 92 95 96 94 92 RELATIVE HUMIDITY (MEAN% 09UTC) 81 81 82 73 75 72 65 67 68 79 84 78 75 RELATIVE HUMIDITY (MEAN% 15UTC) 88 87 85 80 82 77 70 74 75 86 90 88 82 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 216.4 109.8 290.0 59.0 27.0 155.0 74.4 228.0 70.3 831.0 749.3 210.0 3020.2 DAYS WITH PRECIPITATION >=10 9 5 11 2 0 4 2 5 2 15 12 4 71 DAYS WITH PRECIPITATION >= 5 14 6 13 4 3 7 3 7 2 16 12 6 93 DAYS WITH PRECIPITATION >= 1 15 6 15 8 7 10 5 8 5 19 14 7 119 DAYS WITH PRECIPITATION 18 7 17 10 8 11 7 8 7 19 16 9 137 GREATEST DAILY PRECIPITATION 29.0 32.0 38.0 30.0 7.0 55.0 50.0 97.0 33.0 170.0 165.0 125.0 170.0 DAY 20 3 29 1 28 5 4 8 28 11 19 21 DAY WITH THUNDER STORM 0 1 0 0 2 5 0 6 8 6 0 0 28 DAYS WITH SNOW OR SLEET 3 1 1 0 0 0 0 0 0 0 1 0 6 DAYS WITH DUST 0 0 0 5 0 0 0 1 1 1 0 0 8 WIND DIRECTION (PREVAILING) 270 315 360 90 360 180 45 180 45 315 270 315 180 PREVAILING WIND SPEED(KNOTS) 3.5 4.9 6.5 3.6 5.0 1.8 4.7 2.1 5.0 12.7 3.0 6.7 1.9 PREVAILING WIND PERCENT 33.1 30.8 44.8 29.6 42.3 27.5 39.1 29.8 29.2 28.2 23.8 26.2 18.4 CALMS PERCENT OF WIND 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 306 330 4 31 15 10 43 19 45 331 325 305 348 VECTOR WIND MAGNITUDE(KNOTS) 3.8 1.8 3.6 1.7 2.6 1.1 2.1 0.6 1.8 4.8 3.0 2.0 2.0 WIND STEADINESES (MEAN %) 76.0 54.5 67.9 53.1 60.5 34.4 56.8 18.2 47.4 67.6 61.2 48.8 46.5 WIND SPEED (MEAN KNOTS) 5.0 3.3 5.3 3.2 4.3 3.2 3.7 3.3 3.8 7.1 4.9 4.1 4.3 FASTEST WIND DIRECTION 310 310 340 70 50 360 360 340 360 320 360 310 320 FASTEST WIND SPEED (KNOTS) 32 32 33 24 22 15 26 15 35 50 32 26 50 DAY 21 3 26 21 16 1 3 8 21 11 18 20 DAYS WITH SKY CLEAR (0-2)/8 6 5 2 7 7 12 20 20 19 8 8 9 123 DAYS WITH P.CLOUDY (3-6)/8 5 3 10 9 14 7 7 6 9 11 2 10 93 DAYS WITH CLOUDY (7-8)/8 20 20 18 14 10 11 4 5 2 12 20 12 148 DAYS WITH VISIBILITY =< 2 KM 10 9 22 13 4 2 1 2 3 11 13 4 94 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1024.7 1024.0 1021.0 1020.7 1014.5 1016.4 1012.6 1013.8 1016.3 1022.8 1023.3 1021.9 1019.3 MAX. QFE PRESSURE IN HPA 1035.9 1033.7 1034.8 1031.3 1023.0 1025.3 1025.3 1020.2 1021.1 1037.7 1037.9 1035.5 1037.9 DAY-HOUR 4- 6 3- 6 29- 9 5- 3 11- 9 5- 6 5- 6 11- 9 10- 3 12-18 21- 9 22- 6 MIN. QFE PRESSURE IN HPA 1009.1 1007.0 1004.1 1011.3 1006.6 1008.1 1000.6 1005.7 1009.3 1010.2 1012.7 1003.6 1000.6 DAY-HOUR 18-15 26-21 17-12 9-12 25- 0 28-15 2-21 6-21 28-21 22-15 28-12 22-21 MEAN QNH PRESSURE IN HPA 1021.2 1020.5 1017.5 1017.3 1011.0 1012.9 1009.1 1010.4 1012.9 1019.3 1019.8 1018.5 1015.9 MAX. QNH PRESSURE IN HPA 1032.4 1030.2 1031.3 1027.8 1019.5 1021.8 1021.8 1016.7 1017.6 1034.2 1034.4 1032.0 1034.4 DAY-HOUR 4- 6 3- 6 29- 9 5- 3 11- 9 5- 6 5- 6 11- 9 10- 3 12-18 21- 9 22- 6 MIN. QNH PRESSURE IN HPA 1005.7 1003.6 1000.7 1007.9 1003.2 1004.7 997.2 1002.3 1005.9 1006.8 1009.3 1000.2 997.2 DAY-HOUR 18-15 26-21 17-12 9-12 25- 0 28-15 2-21 6-21 28-21 22-15 28-12 22-21 MEAN QFF PRESSURE IN HPA 1021.4 1020.7 1017.8 1017.6 1011.4 1013.3 1009.6 1010.8 1013.3 1019.6 1020.1 1018.7 1016.2 MAX. QFF PRESSURE IN HPA 1032.6 1030.4 1031.5 1028.0 1019.9 1022.1 1022.2 1017.2 1018.1 1034.4 1034.6 1032.2 1034.6 DAY-HOUR 4- 6 3- 6 29- 9 5- 3 11- 9 5- 6 5- 6 11- 9 10- 3 12-18 21- 9 22- 6 MIN. QFF PRESSURE IN HPA 1005.9 1003.8 1001.0 1008.1 1003.6 1005.1 997.7 1002.8 1006.3 1007.1 1009.5 1000.4 997.7 DAY-HOUR 18-15 26-21 17-12 9-15 25- 0 28-15 2-21 6-21 29- 0 22-15 28-15 22-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1024.9 1023.6 1020.4 1020.4 1014.1 1016.2 1012.4 1013.6 1016.2 1022.6 1023.2 1021.8 1019.1 MAX. QFE PRESSURE IN HPA 1034.8 1032.0 1030.9 1030.9 1021.2 1023.6 1024.3 1018.0 1020.6 1035.6 1034.3 1034.4 1035.6 DAY 4 7 29 5 12 5 5 11 10 13 24 22 MIN. QFE PRESSURE IN HPA 1011.0 1008.9 1008.2 1012.4 1006.6 1008.2 1003.7 1006.0 1009.3 1012.8 1014.0 1008.7 1003.7 DAY 19 27 17 9 25 29 3 7 29 23 29 7 MEAN QNH PRESSURE IN HPA 1021.4 1020.1 1017.0 1016.9 1010.6 1012.8 1008.9 1010.2 1012.8 1019.1 1019.7 1018.3 1015.7 MAX. QNH PRESSURE IN HPA 1031.3 1028.5 1027.4 1027.4 1017.7 1020.1 1020.8 1014.5 1017.1 1032.1 1030.8 1030.9 1032.1 DAY 4 7 29 5 12 5 5 11 10 13 24 22 MIN. QNH PRESSURE IN HPA 1007.6 1005.5 1004.8 1009.0 1003.2 1004.8 1000.3 1002.6 1005.9 1009.4 1010.6 1005.3 1000.3 DAY 19 27 17 9 25 29 3 7 29 23 29 7 MEAN QFF PRESSURE IN HPA 1021.6 1020.3 1017.2 1017.2 1011.0 1013.2 1009.4 1010.6 1013.2 1019.5 1020.0 1018.5 1016.0 MAX. QFF PRESSURE IN HPA 1031.5 1028.7 1027.6 1027.7 1018.1 1020.5 1021.2 1015.0 1017.6 1032.3 1031.0 1031.1 1032.3 DAY 4 7 29 5 12 5 5 11 10 13 24 22 MIN. QFF PRESSURE IN HPA 1007.8 1005.7 1005.0 1009.2 1003.6 1005.2 1000.8 1003.1 1006.3 1009.7 1010.9 1005.6 1000.8 DAY 19 27 17 9 25 29 3 7 29 23 29 7 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1024.7 1023.8 1020.9 1020.7 1014.4 1016.6 1012.9 1014.1 1016.6 1022.6 1023.2 1022.0 1019.4 MAX. QFE PRESSURE IN HPA 1034.9 1032.9 1031.3 1031.3 1022.0 1025.2 1024.6 1018.7 1021.1 1035.5 1033.9 1034.2 1035.5 DAY 4 7 29 5 29 5 5 11 10 12 24 22 MIN. QFE PRESSURE IN HPA 1010.5 1010.2 1007.6 1011.9 1006.9 1008.6 1004.3 1007.2 1010.1 1014.2 1015.7 1009.0 1004.3 DAY 19 27 17 9 7 29 12 7 29 23 15 7 MEAN QNH PRESSURE IN HPA 1021.2 1020.3 1017.4 1017.2 1011.0 1013.1 1009.4 1010.6 1013.2 1019.2 1019.8 1018.5 1015.9 MAX. QNH PRESSURE IN HPA 1031.4 1029.4 1027.8 1027.8 1018.5 1021.7 1021.1 1015.2 1017.6 1032.0 1030.4 1030.7 1032.0 DAY 4 7 29 5 29 5 5 11 10 12 24 22 MIN. QNH PRESSURE IN HPA 1007.1 1006.8 1004.2 1008.5 1003.5 1005.2 1000.9 1003.8 1006.7 1010.8 1012.2 1005.6 1000.9 DAY 19 27 17 9 7 29 12 7 29 23 15 7 MEAN QFF PRESSURE IN HPA 1021.4 1020.5 1017.7 1017.5 1011.4 1013.5 1009.8 1011.0 1013.6 1019.5 1020.0 1018.8 1016.2 MAX. QFF PRESSURE IN HPA 1031.6 1029.6 1028.0 1028.0 1018.9 1022.0 1021.5 1015.7 1018.1 1032.2 1030.6 1030.9 1032.2 DAY 4 7 29 5 29 5 5 11 10 12 24 22 MIN. QFF PRESSURE IN HPA 1007.3 1007.0 1004.4 1008.7 1003.8 1005.6 1001.3 1004.3 1007.1 1011.1 1012.6 1005.8 1001.3 DAY 19 27 17 9 7 29 12 7 29 23 15 7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1025.6 1024.7 1022.0 1021.5 1015.1 1016.9 1013.5 1014.5 1017.2 1023.5 1024.0 1022.8 1020.1 MAX. QFE PRESSURE IN HPA 1035.9 1033.7 1033.9 1030.8 1022.7 1025.3 1025.3 1019.8 1021.0 1036.4 1036.6 1035.5 1036.6 DAY 4 3 29 5 11 5 5 11 10 12 21 22 MIN. QFE PRESSURE IN HPA 1010.1 1012.3 1006.4 1012.5 1007.7 1008.9 1004.6 1008.3 1012.2 1014.1 1016.5 1008.6 1004.6 DAY 19 27 17 9 25 29 12 7 29 22 14 19 MEAN QNH PRESSURE IN HPA 1022.2 1021.2 1018.5 1018.0 1011.6 1013.4 1010.1 1011.0 1013.7 1020.0 1020.5 1019.3 1016.6 MAX. QNH PRESSURE IN HPA 1032.4 1030.2 1030.4 1027.3 1019.2 1021.8 1021.8 1016.3 1017.5 1032.9 1033.1 1032.0 1033.1 DAY 4 3 29 5 11 5 5 11 10 12 21 22 MIN. QNH PRESSURE IN HPA 1006.7 1008.9 1003.0 1009.1 1004.3 1005.5 1001.2 1004.9 1008.8 1010.7 1013.0 1005.2 1001.2 DAY 19 27 17 9 25 29 12 7 29 22 14 19 MEAN QFF PRESSURE IN HPA 1022.3 1021.5 1018.7 1018.3 1012.0 1013.8 1010.5 1011.5 1014.1 1020.4 1020.8 1019.6 1017.0 MAX. QFF PRESSURE IN HPA 1032.6 1030.4 1030.6 1027.5 1019.6 1022.1 1022.2 1016.8 1018.0 1033.2 1033.3 1032.2 1033.3 DAY 4 3 29 5 11 5 5 11 10 12 21 22 MIN. QFF PRESSURE IN HPA 1006.9 1009.1 1003.3 1009.3 1004.7 1005.9 1001.6 1005.4 1009.2 1011.0 1013.4 1005.4 1001.6 DAY 19 27 17 9 25 29 12 7 29 22 14 19 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1024.8 1024.4 1021.8 1021.2 1015.0 1016.8 1013.0 1014.1 1016.9 1023.1 1023.4 1022.4 1019.7 MAX. QFE PRESSURE IN HPA 1035.5 1033.3 1034.8 1030.6 1023.0 1024.2 1024.4 1020.2 1020.1 1037.4 1037.9 1034.9 1037.9 DAY 4 3 29 22 11 5 5 11 10 12 21 22 MIN. QFE PRESSURE IN HPA 1010.7 1011.5 1005.0 1012.2 1007.8 1008.9 1003.9 1008.4 1011.2 1012.4 1014.2 1008.0 1003.9 DAY 19 26 17 9 8 28 2 7 28 22 28 19 MEAN QNH PRESSURE IN HPA 1021.4 1020.9 1018.3 1017.7 1011.6 1013.4 1009.5 1010.7 1013.4 1019.6 1019.9 1018.9 1016.3 MAX. QNH PRESSURE IN HPA 1032.0 1029.8 1031.3 1027.1 1019.5 1020.7 1020.9 1016.7 1016.6 1033.9 1034.4 1031.4 1034.4 DAY 4 3 29 22 11 5 5 11 10 12 21 22 MIN. QNH PRESSURE IN HPA 1007.3 1008.1 1001.6 1008.8 1004.4 1005.5 1000.5 1005.0 1007.8 1009.0 1010.8 1004.6 1000.5 DAY 19 26 17 9 8 28 2 7 28 22 28 19 MEAN QFF PRESSURE IN HPA 1021.5 1021.1 1018.6 1018.0 1011.9 1013.8 1010.0 1011.1 1013.9 1019.9 1020.2 1019.1 1016.6 MAX. QFF PRESSURE IN HPA 1032.2 1030.0 1031.5 1027.4 1019.9 1021.0 1021.3 1017.2 1017.1 1034.1 1034.6 1031.6 1034.6 DAY 4 3 29 22 11 5 5 11 10 12 21 22 MIN. QFF PRESSURE IN HPA 1007.5 1008.3 1001.9 1009.0 1004.7 1005.9 1000.9 1005.5 1008.2 1009.3 1011.0 1004.8 1000.9 DAY 19 26 17 9 8 28 2 7 28 22 28 19 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1023.9 1023.4 1020.6 1020.5 1014.5 1016.2 1012.2 1013.5 1015.9 1022.4 1022.8 1021.5 1018.9 MAX. QFE PRESSURE IN HPA 1034.3 1032.8 1033.9 1030.5 1022.4 1023.3 1022.9 1019.8 1019.7 1037.0 1037.1 1034.4 1037.1 DAY 4 3 29 22 11 5 5 11 9 12 21 17 MIN. QFE PRESSURE IN HPA 1009.5 1009.5 1004.1 1011.3 1007.3 1008.7 1002.6 1007.8 1009.7 1010.4 1012.7 1006.4 1002.6 DAY 18 26 17 9 8 28 2 7 28 22 28 19 MEAN QNH PRESSURE IN HPA 1020.5 1019.9 1017.2 1017.0 1011.0 1012.8 1008.8 1010.0 1012.5 1018.9 1019.3 1018.0 1015.5 MAX. QNH PRESSURE IN HPA 1030.8 1029.3 1030.4 1027.0 1018.9 1019.8 1019.4 1016.3 1016.2 1033.5 1033.6 1030.9 1033.6 DAY 4 3 29 22 11 5 5 11 9 12 21 17 MIN. QNH PRESSURE IN HPA 1006.1 1006.1 1000.7 1007.9 1003.9 1005.3 999.2 1004.4 1006.3 1007.0 1009.3 1003.0 999.2 DAY 18 26 17 9 8 28 2 7 28 22 28 19 MEAN QFF PRESSURE IN HPA 1020.7 1020.1 1017.4 1017.3 1011.4 1013.2 1009.2 1010.5 1012.9 1019.2 1019.6 1018.3 1015.8 MAX. QFF PRESSURE IN HPA 1031.0 1029.5 1030.6 1027.3 1019.3 1020.1 1019.8 1016.8 1016.7 1033.7 1033.8 1031.2 1033.8 DAY 4 3 29 22 11 5 5 11 9 12 21 17 MIN. QFF PRESSURE IN HPA 1006.3 1006.3 1001.0 1008.1 1004.2 1005.7 999.7 1004.9 1006.7 1007.3 1009.5 1003.2 999.7 DAY 18 26 17 9 8 28 2 7 28 22 28 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1024.4 1024.0 1020.7 1020.5 1014.1 1015.9 1011.9 1013.3 1015.7 1022.3 1023.1 1022.0 1019.0 MAX. QFE PRESSURE IN HPA 1034.2 1033.2 1033.4 1030.1 1021.7 1023.1 1023.4 1019.4 1019.6 1037.0 1036.9 1033.9 1037.0 DAY 4 3 29 22 11 5 4 11 9 12 21 21 MIN. QFE PRESSURE IN HPA 1009.1 1009.0 1005.1 1011.3 1006.8 1008.1 1000.7 1006.7 1009.4 1010.2 1012.7 1009.1 1000.7 DAY 18 26 17 9 8 28 2 6 28 22 28 19 MEAN QNH PRESSURE IN HPA 1020.9 1020.5 1017.3 1017.1 1010.7 1012.5 1008.4 1009.8 1012.3 1018.9 1019.6 1018.5 1015.5 MAX. QNH PRESSURE IN HPA 1030.7 1029.7 1029.9 1026.6 1018.2 1019.6 1019.9 1015.9 1016.1 1033.5 1033.4 1030.4 1033.5 DAY 4 3 29 22 11 5 4 11 9 12 21 21 MIN. QNH PRESSURE IN HPA 1005.7 1005.6 1001.7 1007.9 1003.4 1004.7 997.3 1003.3 1006.0 1006.8 1009.3 1005.7 997.3 DAY 18 26 17 9 8 28 2 6 28 22 28 19 MEAN QFF PRESSURE IN HPA 1021.1 1020.7 1017.5 1017.4 1011.1 1012.9 1008.8 1010.3 1012.7 1019.2 1019.9 1018.8 1015.9 MAX. QFF PRESSURE IN HPA 1030.9 1029.9 1030.1 1026.9 1018.6 1019.9 1020.3 1016.4 1016.6 1033.7 1033.6 1030.6 1033.7 DAY 4 3 29 22 11 5 4 11 9 12 21 21 MIN. QFF PRESSURE IN HPA 1005.9 1005.8 1002.0 1008.1 1003.7 1005.1 997.7 1003.8 1006.4 1007.1 1009.5 1005.9 997.7 DAY 18 26 17 9 8 28 2 6 28 22 28 19 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1024.7 1024.1 1020.9 1020.8 1014.5 1016.3 1012.4 1013.9 1016.1 1023.0 1023.5 1022.3 1019.4 MAX. QFE PRESSURE IN HPA 1034.0 1032.7 1032.4 1030.5 1022.0 1024.7 1024.7 1019.2 1020.8 1037.7 1037.0 1034.8 1037.7 DAY 3 3 29 4 11 4 4 11 9 12 21 21 MIN. QFE PRESSURE IN HPA 1009.9 1007.8 1007.6 1012.7 1007.2 1008.3 1001.5 1006.2 1009.5 1011.2 1012.8 1011.4 1001.5 DAY 18 26 17 9 8 29 2 6 28 8 28 6 MEAN QNH PRESSURE IN HPA 1021.2 1020.6 1017.5 1017.3 1011.1 1012.8 1009.0 1010.5 1012.6 1019.5 1020.0 1018.8 1015.9 MAX. QNH PRESSURE IN HPA 1030.5 1029.2 1028.9 1027.0 1018.5 1021.2 1021.2 1015.7 1017.3 1034.2 1033.5 1031.3 1034.2 DAY 3 3 29 4 11 4 4 11 9 12 21 21 MIN. QNH PRESSURE IN HPA 1006.5 1004.4 1004.2 1009.3 1003.8 1004.9 998.1 1002.8 1006.1 1007.8 1009.4 1008.0 998.1 DAY 18 26 17 9 8 29 2 6 28 8 28 6 MEAN QFF PRESSURE IN HPA 1021.4 1020.8 1017.7 1017.6 1011.4 1013.2 1009.4 1010.9 1013.1 1019.8 1020.3 1019.0 1016.2 MAX. QFF PRESSURE IN HPA 1030.7 1029.4 1029.1 1027.2 1018.9 1021.6 1021.6 1016.2 1017.8 1034.4 1033.6 1031.5 1034.4 DAY 3 3 29 4 11 4 4 11 9 12 21 21 MIN. QFF PRESSURE IN HPA 1006.7 1004.6 1004.5 1009.5 1004.2 1005.3 998.5 1003.3 1006.5 1008.2 1009.6 1008.2 998.5 DAY 18 26 17 9 8 29 2 6 28 8 28 6 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1024.6 1023.8 1020.8 1020.6 1014.3 1016.2 1012.4 1013.9 1016.1 1022.9 1023.2 1021.0 1019.1 MAX. QFE PRESSURE IN HPA 1034.5 1032.0 1030.8 1030.7 1022.2 1024.8 1024.6 1019.0 1020.6 1036.7 1035.5 1034.7 1036.7 DAY 3 3 28 4 11 4 4 11 9 12 21 21 MIN. QFE PRESSURE IN HPA 1010.5 1007.0 1009.1 1012.8 1006.8 1008.4 1000.6 1005.7 1009.3 1012.3 1013.2 1003.6 1000.6 DAY 18 26 16 9 25 29 2 6 28 8 28 22 MEAN QNH PRESSURE IN HPA 1021.1 1020.3 1017.3 1017.1 1010.8 1012.7 1009.0 1010.4 1012.7 1019.4 1019.7 1017.5 1015.7 MAX. QNH PRESSURE IN HPA 1031.0 1028.5 1027.3 1027.2 1018.7 1021.3 1021.1 1015.5 1017.1 1033.2 1032.0 1031.2 1033.2 DAY 3 3 28 4 11 4 4 11 9 12 21 21 MIN. QNH PRESSURE IN HPA 1007.1 1003.6 1005.7 1009.4 1003.4 1005.0 997.2 1002.3 1005.9 1008.9 1009.8 1000.2 997.2 DAY 18 26 16 9 25 29 2 6 28 8 28 22 MEAN QFF PRESSURE IN HPA 1021.3 1020.5 1017.5 1017.4 1011.2 1013.2 1009.4 1010.9 1013.1 1019.8 1020.0 1017.8 1016.0 MAX. QFF PRESSURE IN HPA 1031.2 1028.7 1027.5 1027.5 1019.1 1021.7 1021.5 1016.0 1017.6 1033.4 1032.1 1031.4 1033.4 DAY 3 3 28 4 11 4 4 11 9 12 21 21 MIN. QFF PRESSURE IN HPA 1007.3 1003.8 1005.9 1009.6 1003.8 1005.4 997.7 1002.8 1006.3 1009.3 1010.1 1000.4 997.7 DAY 18 26 16 9 25 29 2 6 28 8 28 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 9.3 9.1 10.9 12.7 19.9 23.0 24.8 25.2 21.7 17.1 10.6 9.5 16.2 MINIMUN AIR TEMPERATURE (C) 6.6 4.8 7.8 10.1 15.8 19.2 20.6 20.8 18.6 14.2 6.9 6.2 12.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 9 20 21 6 0 0 0 56 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 4 0 0 0 0 0 0 0 0 0 0 4 TEMPERATURE RECORDS LOWEST(C) 2.0 -2.0 4.0 7.0 12.0 16.0 15.0 16.0 15.0 7.0 1.0 2.0 -2.0 DAY 1 1 5 6 1 21 14 5 25 29 22 2 MAXIMUM AIR TEMPERATURE (C) 12.6 14.1 14.2 15.7 24.0 26.9 29.2 29.3 25.3 20.6 14.6 12.8 19.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 5 18 15 2 1 0 0 41 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 23.0 28.0 23.0 21.0 29.0 32.0 32.0 32.0 33.0 32.0 20.0 27.0 33.0 DAY 9 22 15 26 18 2 3 13 2 17 28 8 DIF. BETWEEN (MAX.-MIN.) (C) 6.0 9.3 6.4 5.6 8.2 7.7 8.6 8.5 6.7 6.4 7.7 6.6 7.3 MEAN DAILY TEMP. (MDT) (C) 9.6 9.4 11.0 12.9 19.9 23.1 24.9 25.0 22.0 17.4 10.8 9.5 16.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 27.0 66.5 121.5 125.0 40.5 1.0 0.0 0.0 381.5 HEATING DEG. DAYS(BASE 18 0C) 261.0 243.0 217.0 152.5 17.0 0.0 0.0 0.0 0.0 43.0 217.0 263.5 1414.0 DEWPOINT (MEAN C) 6.9 5.9 9.1 10.5 16.6 19.8 20.7 21.6 19.4 14.8 7.9 7.6 13.4 MIXING RATIO (G/KG) 6.21 5.82 7.20 8.00 11.92 14.74 15.50 16.37 14.22 10.60 6.68 6.47 10.31 VAPOUR PRESSURE (HPA) 10.09 9.47 11.63 12.92 19.14 23.43 24.57 25.97 22.70 17.12 10.91 10.52 16.54 SATURATION DEF. (HPA) 1.87 2.57 1.53 1.98 4.67 5.12 7.33 6.48 3.56 2.80 2.19 1.70 3.48 RELATIVE HUMIDITY (MEAN %) 88 83 89 87 82 83 79 82 88 88 85 89 85 RELATIVE HUMIDITY (MAX. %) 96 96 96 96 95 93 92 93 97 96 96 98 95 RELATIVE HUMIDITY (MIN. %) 76 66 79 74 67 69 65 68 76 75 68 80 72 RELATIVE HUMIDITY (MEAN% 03UTC) 89 91 94 94 93 87 91 91 95 93 91 92 92 RELATIVE HUMIDITY (MEAN% 09UTC) 85 73 82 80 71 77 68 72 79 79 74 82 77 RELATIVE HUMIDITY (MEAN% 15UTC) 86 83 88 86 78 81 72 78 84 87 84 91 83 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 107.2 49.6 48.0 23.9 11.0 79.4 133.3 98.4 309.5 730.9 701.3 197.4 2489.9 DAYS WITH PRECIPITATION >=10 5 2 1 0 0 2 4 4 14 15 9 7 63 DAYS WITH PRECIPITATION >= 5 9 3 4 2 0 3 4 4 15 15 13 9 81 DAYS WITH PRECIPITATION >= 1 16 5 12 5 7 8 6 7 18 17 15 11 127 DAYS WITH PRECIPITATION 16 7 13 8 7 9 6 10 20 19 17 14 146 GREATEST DAILY PRECIPITATION 22.0 23.0 17.0 9.0 2.0 53.0 68.0 30.0 40.0 122.0 267.0 53.0 267.0 DAY 31 1 27 13 26 21 12 4 10 13 8 10 DAY WITH THUNDER STORM 0 0 0 2 6 5 0 4 0 1 0 0 18 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 1 0 2 DAYS WITH DUST 0 0 0 0 0 0 1 0 1 0 0 0 2 WIND DIRECTION (PREVAILING) 270 180 360 315 45 180 180 360 270 270 270 270 180 PREVAILING WIND SPEED(KNOTS) 3.8 2.9 6.5 6.0 5.5 2.1 1.8 5.2 2.9 3.8 2.6 2.6 2.6 PREVAILING WIND PERCENT 32.7 33.0 29.4 22.5 21.0 44.2 17.7 22.2 24.6 25.8 33.3 34.7 20.2 CALMS PERCENT OF WIND 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.8 0.0 0.0 0.0 0.0 0.1 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 271 275 339 345 348 39 344 2 325 311 300 288 321 VECTOR WIND MAGNITUDE(KNOTS) 2.3 1.1 2.0 2.0 1.4 1.4 1.1 1.2 1.4 3.3 1.7 1.6 1.4 WIND STEADINESES (MEAN %) 52.3 28.2 47.6 45.5 34.1 34.1 31.4 35.3 38.9 68.7 45.9 47.1 35.0 WIND SPEED (MEAN KNOTS) 4.4 3.9 4.2 4.4 4.1 4.1 3.5 3.4 3.6 4.8 3.7 3.4 4.0 FASTEST WIND DIRECTION 180 310 360 310 310 310 20 340 130 340 340 310 340 FASTEST WIND SPEED (KNOTS) 26 22 26 32 21 22 30 25 32 38 45 23 45 DAY 3 4 27 15 21 9 21 3 25 28 20 4 DAYS WITH SKY CLEAR (0-2)/8 2 13 1 2 9 9 14 16 5 2 7 5 85 DAYS WITH P.CLOUDY (3-6)/8 5 5 8 6 18 10 9 6 5 11 8 8 99 DAYS WITH CLOUDY (7-8)/8 24 10 22 22 4 11 8 9 20 18 15 18 181 DAYS WITH VISIBILITY =< 2 KM 1 0 4 1 2 0 4 1 13 5 6 8 45 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1020.4 1022.0 1017.2 1018.2 1018.7 1012.7 1011.2 1013.4 1016.5 1022.7 1028.3 1022.1 1018.6 MAX. QFE PRESSURE IN HPA 1030.8 1032.2 1031.6 1036.1 1028.7 1026.0 1021.0 1022.3 1024.7 1035.1 1040.3 1037.5 1040.3 DAY-HOUR 14- 6 13- 6 27- 6 24- 3 13- 6 11- 0 15- 6 4- 6 24- 6 31- 6 21-21 5- 6 MIN. QFE PRESSURE IN HPA 1002.1 1007.2 996.6 995.6 1007.1 1000.9 1002.6 1005.6 1001.2 1008.7 1004.0 1004.7 995.6 DAY-HOUR 30-12 22-12 14-18 20- 0 2-18 1- 0 2-15 31-21 13-18 17-12 21-18 8-12 MEAN QNH PRESSURE IN HPA 1016.9 1018.5 1013.7 1014.8 1015.2 1009.3 1007.7 1009.9 1013.0 1019.2 1024.8 1018.6 1015.1 MAX. QNH PRESSURE IN HPA 1027.3 1028.7 1028.1 1032.6 1025.2 1022.5 1017.5 1018.8 1021.2 1031.6 1036.8 1034.0 1036.8 DAY-HOUR 14- 6 13- 6 27- 6 24- 3 13- 6 11- 0 15- 6 4- 6 24- 6 31- 6 21-21 5- 6 MIN. QNH PRESSURE IN HPA 998.7 1003.8 993.2 992.2 1003.7 997.5 999.2 1002.2 997.8 1005.3 1000.6 1001.3 992.2 DAY-HOUR 30-12 22-12 14-18 20- 0 2-18 1- 0 2-15 31-21 13-18 17-12 21-18 8-12 MEAN QFF PRESSURE IN HPA 1017.2 1018.8 1014.0 1015.0 1015.6 1009.7 1008.2 1010.4 1013.4 1019.6 1025.1 1018.9 1015.5 MAX. QFF PRESSURE IN HPA 1027.5 1028.9 1028.3 1032.9 1025.6 1022.9 1017.9 1019.2 1021.6 1031.9 1036.9 1034.2 1036.9 DAY-HOUR 14- 6 13- 6 27- 6 24- 3 13- 6 11- 0 15- 6 4- 6 24- 6 31- 6 21-21 5- 6 MIN. QFF PRESSURE IN HPA 999.0 1004.1 993.6 992.5 1004.0 997.9 999.6 1002.6 998.2 1005.7 1000.8 1001.7 992.5 DAY-HOUR 30-12 22-12 14-18 20- 0 2-18 1- 0 2-15 31-21 13-18 17-12 21-18 8-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1020.3 1022.0 1017.2 1018.0 1018.3 1012.7 1010.9 1013.4 1016.2 1022.4 1028.6 1022.3 1018.5 MAX. QFE PRESSURE IN HPA 1029.1 1031.4 1031.3 1027.0 1026.8 1026.0 1020.0 1021.6 1024.6 1033.2 1039.8 1034.5 1039.8 DAY 14 13 1 6 13 11 14 4 24 31 22 5 MIN. QFE PRESSURE IN HPA 1005.6 1010.4 1005.2 995.6 1010.1 1000.9 1003.8 1007.3 1005.4 1010.8 1011.0 1010.2 995.6 DAY 31 22 14 20 26 1 3 12 2 17 28 8 MEAN QNH PRESSURE IN HPA 1016.8 1018.5 1013.7 1014.5 1014.8 1009.3 1007.5 1010.0 1012.8 1018.9 1025.2 1018.8 1015.1 MAX. QNH PRESSURE IN HPA 1025.6 1027.9 1027.8 1023.5 1023.3 1022.5 1016.5 1018.1 1021.1 1029.7 1036.3 1031.0 1036.3 DAY 14 13 1 6 13 11 14 4 24 31 22 5 MIN. QNH PRESSURE IN HPA 1002.2 1007.0 1001.8 992.2 1006.7 997.5 1000.4 1003.9 1002.0 1007.4 1007.6 1006.8 992.2 DAY 31 22 14 20 26 1 3 12 2 17 28 8 MEAN QFF PRESSURE IN HPA 1017.1 1018.7 1014.0 1014.8 1015.2 1009.7 1007.9 1010.4 1013.2 1019.3 1025.4 1019.0 1015.4 MAX. QFF PRESSURE IN HPA 1025.9 1028.2 1028.0 1023.8 1023.7 1022.9 1016.9 1018.5 1021.5 1030.0 1036.4 1031.2 1036.4 DAY 14 13 1 6 13 11 14 4 24 31 22 5 MIN. QFF PRESSURE IN HPA 1002.5 1007.3 1002.1 992.5 1007.1 997.9 1000.8 1004.3 1002.4 1007.7 1007.9 1007.2 992.5 DAY 31 22 14 20 26 1 3 12 2 17 28 8 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1020.3 1022.1 1017.5 1018.6 1018.6 1013.1 1011.4 1013.8 1016.6 1022.7 1028.6 1022.2 1018.8 MAX. QFE PRESSURE IN HPA 1029.3 1031.4 1030.6 1036.1 1027.5 1020.1 1020.6 1021.9 1024.5 1033.8 1039.7 1035.6 1039.7 DAY 14 13 27 24 13 13 15 4 24 31 22 5 MIN. QFE PRESSURE IN HPA 1005.3 1010.3 1004.5 1000.1 1010.3 1004.9 1003.8 1008.0 1005.8 1010.5 1012.6 1008.6 1000.1 DAY 30 22 14 20 26 8 7 12 1 17 28 8 MEAN QNH PRESSURE IN HPA 1016.8 1018.6 1014.0 1015.1 1015.2 1009.6 1008.0 1010.4 1013.1 1019.2 1025.1 1018.8 1015.3 MAX. QNH PRESSURE IN HPA 1025.8 1027.9 1027.1 1032.6 1024.0 1016.6 1017.1 1018.4 1021.0 1030.3 1036.2 1032.1 1036.2 DAY 14 13 27 24 13 13 15 4 24 31 22 5 MIN. QNH PRESSURE IN HPA 1001.9 1006.9 1001.1 996.7 1006.9 1001.5 1000.4 1004.6 1002.4 1007.1 1009.2 1005.2 996.7 DAY 30 22 14 20 26 8 7 12 1 17 28 8 MEAN QFF PRESSURE IN HPA 1017.0 1018.8 1014.3 1015.4 1015.6 1010.0 1008.4 1010.8 1013.5 1019.5 1025.3 1019.0 1015.6 MAX. QFF PRESSURE IN HPA 1026.0 1028.1 1027.3 1032.9 1024.4 1017.0 1017.5 1018.8 1021.4 1030.6 1036.3 1032.3 1036.3 DAY 14 13 27 24 13 13 15 4 24 31 22 5 MIN. QFF PRESSURE IN HPA 1002.1 1007.2 1001.4 997.0 1007.3 1001.9 1000.8 1005.0 1002.8 1007.4 1009.5 1005.5 997.0 DAY 30 22 14 20 26 8 7 12 1 17 28 8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1021.4 1023.0 1018.1 1018.5 1019.4 1013.3 1011.9 1014.1 1017.1 1023.6 1029.3 1022.9 1019.4 MAX. QFE PRESSURE IN HPA 1030.8 1032.2 1031.6 1026.7 1028.7 1020.4 1021.0 1022.3 1024.7 1035.1 1039.7 1037.5 1039.7 DAY 14 13 27 5 13 13 15 4 24 31 22 5 MIN. QFE PRESSURE IN HPA 1005.6 1009.6 1004.3 1002.4 1011.0 1005.0 1004.6 1008.1 1005.5 1010.8 1016.4 1008.7 1002.4 DAY 30 22 14 20 2 30 10 16 1 17 27 8 MEAN QNH PRESSURE IN HPA 1017.9 1019.5 1014.7 1015.0 1015.9 1009.9 1008.5 1010.7 1013.6 1020.1 1025.8 1019.5 1015.9 MAX. QNH PRESSURE IN HPA 1027.3 1028.7 1028.1 1023.2 1025.2 1016.9 1017.5 1018.8 1021.2 1031.6 1036.2 1034.0 1036.2 DAY 14 13 27 5 13 13 15 4 24 31 22 5 MIN. QNH PRESSURE IN HPA 1002.2 1006.2 1000.9 999.0 1007.6 1001.6 1001.2 1004.7 1002.1 1007.4 1012.9 1005.3 999.0 DAY 30 22 14 20 2 30 10 16 1 17 27 8 MEAN QFF PRESSURE IN HPA 1018.2 1019.7 1014.9 1015.3 1016.3 1010.3 1008.9 1011.1 1014.0 1020.4 1026.1 1019.7 1016.2 MAX. QFF PRESSURE IN HPA 1027.5 1028.9 1028.3 1023.5 1025.6 1017.3 1017.9 1019.2 1021.6 1031.9 1036.3 1034.2 1036.3 DAY 14 13 27 24 13 13 15 4 24 31 22 5 MIN. QFF PRESSURE IN HPA 1002.4 1006.5 1001.2 999.3 1007.9 1002.0 1001.6 1005.1 1002.5 1007.7 1013.2 1005.7 999.3 DAY 30 22 14 20 2 30 10 16 1 17 27 8 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1020.7 1022.5 1017.6 1018.3 1019.6 1013.0 1011.6 1013.7 1016.7 1023.0 1028.7 1022.1 1019.0 MAX. QFE PRESSURE IN HPA 1029.7 1031.7 1031.3 1026.8 1027.8 1020.2 1020.9 1021.7 1024.6 1034.5 1038.9 1036.2 1038.9 DAY 14 13 27 5 22 13 15 4 24 31 21 5 MIN. QFE PRESSURE IN HPA 1003.6 1009.4 1000.6 1002.7 1010.2 1003.7 1004.9 1007.2 1004.9 1009.6 1014.3 1007.6 1000.6 DAY 30 22 14 11 2 8 10 16 1 17 27 8 MEAN QNH PRESSURE IN HPA 1017.2 1019.1 1014.1 1014.8 1016.1 1009.6 1008.2 1010.3 1013.2 1019.5 1025.2 1018.7 1015.5 MAX. QNH PRESSURE IN HPA 1026.2 1028.2 1027.8 1023.3 1024.3 1016.7 1017.4 1018.2 1021.1 1031.0 1035.4 1032.7 1035.4 DAY 14 13 27 5 22 13 15 4 24 31 21 5 MIN. QNH PRESSURE IN HPA 1000.2 1006.0 997.2 999.3 1006.8 1000.3 1001.5 1003.8 1001.5 1006.2 1010.9 1004.2 997.2 DAY 30 22 14 11 2 8 10 16 1 17 27 8 MEAN QFF PRESSURE IN HPA 1017.5 1019.3 1014.4 1015.1 1016.5 1010.0 1008.6 1010.7 1013.6 1019.9 1025.4 1018.9 1015.8 MAX. QFF PRESSURE IN HPA 1026.5 1028.4 1028.0 1023.6 1024.7 1017.1 1017.8 1018.6 1021.5 1031.3 1035.5 1032.9 1035.5 DAY 14 13 27 5 22 13 15 4 24 31 21 5 MIN. QFF PRESSURE IN HPA 1000.4 1006.3 997.5 999.6 1007.1 1000.7 1001.9 1004.2 1001.9 1006.6 1011.1 1004.6 997.5 DAY 30 22 14 11 2 8 10 16 1 17 27 8 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1019.7 1021.3 1016.4 1017.9 1018.7 1012.4 1010.9 1012.9 1016.0 1022.3 1027.8 1021.2 1018.1 MAX. QFE PRESSURE IN HPA 1028.3 1030.5 1030.0 1026.7 1027.1 1020.6 1020.0 1020.7 1024.1 1034.0 1038.7 1034.2 1038.7 DAY 14 28 27 5 12 12 13 4 19 31 21 5 MIN. QFE PRESSURE IN HPA 1002.1 1007.2 996.7 1005.4 1008.4 1003.1 1003.6 1006.3 1004.1 1008.7 1012.5 1004.7 996.7 DAY 30 22 14 11 2 30 2 16 1 17 27 8 MEAN QNH PRESSURE IN HPA 1016.3 1017.9 1013.0 1014.4 1015.3 1009.0 1007.5 1009.4 1012.5 1018.8 1024.3 1017.8 1014.7 MAX. QNH PRESSURE IN HPA 1024.8 1027.0 1026.5 1023.2 1023.6 1017.1 1016.5 1017.2 1020.6 1030.5 1035.2 1030.7 1035.2 DAY 14 28 27 5 12 12 13 4 19 31 21 5 MIN. QNH PRESSURE IN HPA 998.7 1003.8 993.3 1002.0 1005.0 999.7 1000.2 1002.9 1000.7 1005.3 1009.1 1001.3 993.3 DAY 30 22 14 11 2 30 2 16 1 17 27 8 MEAN QFF PRESSURE IN HPA 1016.5 1018.1 1013.2 1014.7 1015.7 1009.4 1007.9 1009.9 1012.9 1019.2 1024.5 1018.0 1015.0 MAX. QFF PRESSURE IN HPA 1025.0 1027.3 1026.7 1023.5 1024.0 1017.5 1016.9 1017.6 1021.0 1030.8 1035.4 1030.9 1035.4 DAY 14 28 27 5 12 12 15 4 19 31 21 5 MIN. QFF PRESSURE IN HPA 999.0 1004.1 993.6 1002.3 1005.3 1000.1 1000.6 1003.3 1001.1 1005.7 1009.3 1001.7 993.6 DAY 30 22 14 11 2 30 2 16 1 17 27 8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1020.0 1021.3 1016.5 1017.9 1018.2 1012.1 1010.4 1012.6 1016.1 1022.3 1028.0 1021.7 1018.1 MAX. QFE PRESSURE IN HPA 1028.3 1030.7 1030.1 1027.2 1026.5 1020.7 1020.1 1020.5 1024.0 1034.1 1039.7 1034.0 1039.7 DAY 14 28 27 3 12 12 13 24 19 31 21 5 MIN. QFE PRESSURE IN HPA 1002.2 1008.4 997.0 1004.6 1007.4 1002.0 1002.6 1006.0 1003.6 1009.2 1012.2 1006.2 997.0 DAY 30 22 14 19 2 8 2 16 1 17 27 8 MEAN QNH PRESSURE IN HPA 1016.5 1017.8 1013.0 1014.5 1014.7 1008.7 1007.0 1009.1 1012.6 1018.8 1024.5 1018.2 1014.6 MAX. QNH PRESSURE IN HPA 1024.8 1027.2 1026.6 1023.7 1023.0 1017.2 1016.6 1017.0 1020.5 1030.6 1036.2 1030.5 1036.2 DAY 14 28 27 3 12 12 13 24 19 31 21 5 MIN. QNH PRESSURE IN HPA 998.8 1005.0 993.6 1001.2 1004.0 998.6 999.2 1002.6 1000.2 1005.8 1008.8 1002.8 993.6 DAY 30 22 14 19 2 8 2 16 1 17 27 8 MEAN QFF PRESSURE IN HPA 1016.8 1018.0 1013.3 1014.8 1015.1 1009.1 1007.4 1009.6 1013.0 1019.2 1024.7 1018.5 1014.9 MAX. QFF PRESSURE IN HPA 1025.0 1027.4 1026.8 1024.0 1023.4 1017.6 1017.0 1017.5 1020.9 1030.9 1036.3 1030.7 1036.3 DAY 14 28 27 3 12 12 13 24 19 31 21 5 MIN. QFF PRESSURE IN HPA 999.1 1005.3 993.9 1001.5 1004.3 999.0 999.6 1003.0 1000.6 1006.1 1009.0 1003.1 993.9 DAY 30 22 14 19 2 8 2 31 1 17 27 8 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1020.7 1021.8 1017.0 1018.5 1018.5 1012.6 1011.1 1013.3 1016.5 1022.8 1027.3 1022.2 1018.5 MAX. QFE PRESSURE IN HPA 1028.7 1031.7 1030.4 1028.8 1027.4 1020.7 1020.7 1022.2 1024.3 1034.0 1036.2 1032.3 1036.2 DAY 12 28 27 3 12 12 13 24 19 31 8 4 MIN. QFE PRESSURE IN HPA 1003.4 1009.8 996.6 1002.0 1007.1 1002.8 1002.8 1005.9 1001.2 1010.9 1004.0 1008.7 996.6 DAY 30 22 14 19 2 30 2 31 13 16 21 8 MEAN QNH PRESSURE IN HPA 1017.3 1018.4 1013.5 1015.1 1015.0 1009.1 1007.6 1009.8 1013.0 1019.4 1023.8 1018.8 1015.1 MAX. QNH PRESSURE IN HPA 1025.2 1028.2 1026.9 1025.3 1023.9 1017.2 1017.2 1018.7 1020.8 1030.5 1032.7 1028.8 1032.7 DAY 12 28 27 3 12 12 13 24 19 31 8 4 MIN. QNH PRESSURE IN HPA 1000.0 1006.4 993.2 998.6 1003.7 999.4 999.4 1002.5 997.8 1007.5 1000.6 1005.3 993.2 DAY 30 22 14 19 2 30 2 31 13 16 21 8 MEAN QFF PRESSURE IN HPA 1017.5 1018.6 1013.8 1015.3 1015.4 1009.6 1008.0 1010.3 1013.4 1019.7 1024.1 1019.0 1015.4 MAX. QFF PRESSURE IN HPA 1025.5 1028.4 1027.1 1025.6 1024.3 1017.6 1017.6 1019.2 1021.2 1030.8 1032.9 1029.0 1032.9 DAY 12 28 27 3 12 12 13 24 19 31 8 4 MIN. QFF PRESSURE IN HPA 1000.2 1006.7 993.6 998.9 1004.0 999.8 999.8 1002.9 998.2 1007.8 1000.8 1005.6 993.6 DAY 30 22 14 19 2 30 2 31 13 16 21 8 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1020.3 1022.2 1017.1 1018.3 1018.2 1012.5 1011.2 1013.3 1017.0 1022.8 1028.5 1022.2 1018.6 MAX. QFE PRESSURE IN HPA 1028.6 1031.6 1029.0 1027.8 1027.6 1020.4 1020.4 1021.7 1024.6 1033.9 1040.3 1033.5 1040.3 DAY 12 28 26 3 12 12 13 24 23 31 21 4 MIN. QFE PRESSURE IN HPA 1004.6 1011.2 1004.9 998.2 1008.0 1003.3 1002.6 1005.6 1004.3 1010.9 1010.8 1008.8 998.2 DAY 30 21 22 19 2 30 2 31 1 16 27 8 MEAN QNH PRESSURE IN HPA 1016.8 1018.8 1013.7 1014.8 1014.7 1009.0 1007.8 1009.8 1013.5 1019.4 1025.0 1018.7 1015.2 MAX. QNH PRESSURE IN HPA 1025.1 1028.1 1025.5 1024.3 1024.1 1016.9 1016.9 1018.2 1021.1 1030.4 1036.8 1030.0 1036.8 DAY 12 28 26 3 12 12 13 24 23 31 21 4 MIN. QNH PRESSURE IN HPA 1001.2 1007.8 1001.5 994.8 1004.6 999.9 999.2 1002.2 1000.9 1007.5 1007.4 1005.4 994.8 DAY 30 21 22 19 2 30 2 31 1 16 27 8 MEAN QFF PRESSURE IN HPA 1017.1 1019.0 1013.9 1015.1 1015.1 1009.4 1008.2 1010.3 1013.9 1019.7 1025.2 1018.9 1015.5 MAX. QFF PRESSURE IN HPA 1025.4 1028.3 1025.7 1024.6 1024.5 1017.3 1017.3 1018.7 1021.5 1030.7 1036.9 1030.2 1036.9 DAY 12 28 26 3 12 12 13 24 23 31 21 4 MIN. QFF PRESSURE IN HPA 1001.5 1008.1 1001.8 995.1 1004.9 1000.3 999.6 1002.6 1001.3 1007.8 1007.7 1005.7 995.1 DAY 30 21 22 19 2 30 2 31 1 16 27 8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.8 4.0 7.2 13.9 19.3 22.4 26.0 24.7 21.0 15.7 10.9 6.8 15.0 MINIMUN AIR TEMPERATURE (C) 4.6 0.6 4.6 10.5 15.7 18.9 21.2 20.6 17.8 13.3 7.9 4.2 11.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 13 21 18 2 0 0 0 54 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 1 17 2 0 0 0 0 0 0 0 0 3 23 TEMPERATURE RECORDS LOWEST(C) 0.0 -3.0 0.0 6.0 9.0 13.0 19.0 17.0 15.0 11.0 3.0 -3.0 -3.0 DAY 3 12 9 3 3 3 1 26 24 9 21 15 MAXIMUM AIR TEMPERATURE (C) 10.9 7.6 10.0 18.3 23.2 26.2 30.3 29.0 24.6 18.8 14.0 9.4 18.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 4 21 14 2 0 0 0 41 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 13.0 16.0 15.0 26.0 28.0 30.0 34.0 34.0 31.0 27.0 19.0 24.0 34.0 DAY 6 1 28 16 19 16 19 1 2 25 3 6 DIF. BETWEEN (MAX.-MIN.) (C) 6.3 7.0 5.4 7.8 7.5 7.3 9.1 8.4 6.8 5.5 6.1 5.2 6.8 MEAN DAILY TEMP. (MDT) (C) 7.8 4.1 7.3 14.4 19.5 22.6 25.8 24.8 21.2 16.1 10.9 6.8 15.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 6.5 59.5 147.5 120.0 26.5 0.0 0.0 0.0 360.0 HEATING DEG. DAYS(BASE 18 0C) 317.5 388.5 331.5 110.0 19.0 0.5 0.0 0.0 0.0 65.0 211.5 346.5 1790.0 DEWPOINT (MEAN C) 6.4 1.6 5.9 11.4 15.9 18.5 20.5 21.2 18.4 14.1 9.2 5.4 12.4 MIXING RATIO (G/KG) 5.96 4.29 5.73 8.49 11.38 13.56 15.54 16.00 13.42 10.01 7.28 5.57 9.77 VAPOUR PRESSURE (HPA) 9.70 7.00 9.35 13.70 18.23 21.63 24.61 25.33 21.43 16.17 11.86 9.11 15.68 SATURATION DEF. (HPA) 1.00 1.34 0.92 2.53 4.56 5.80 9.38 6.47 3.72 1.87 1.48 0.90 3.33 RELATIVE HUMIDITY (MEAN %) 91 87 92 86 82 80 74 82 87 91 90 92 86 RELATIVE HUMIDITY (MAX. %) 98 96 97 97 95 93 91 94 96 98 97 98 96 RELATIVE HUMIDITY (MIN. %) 81 74 82 71 66 64 54 66 72 80 78 82 73 RELATIVE HUMIDITY (MEAN% 03UTC) 95 90 96 94 90 90 85 90 93 96 96 93 92 RELATIVE HUMIDITY (MEAN% 09UTC) 84 81 85 78 72 72 60 70 78 83 83 85 78 RELATIVE HUMIDITY (MEAN% 15UTC) 90 85 90 84 76 73 69 78 82 90 87 93 83 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 81.0 352.6 106.8 19.2 35.0 48.1 17.5 465.8 238.7 382.7 586.5 174.3 2508.2 DAYS WITH PRECIPITATION >=10 4 11 3 0 2 1 0 8 8 13 14 5 69 DAYS WITH PRECIPITATION >= 5 6 14 6 1 4 4 2 8 13 16 16 6 96 DAYS WITH PRECIPITATION >= 1 7 16 12 6 5 4 3 12 17 20 18 13 133 DAYS WITH PRECIPITATION 7 17 18 9 13 7 4 15 18 22 20 13 163 GREATEST DAILY PRECIPITATION 31.0 42.0 31.0 9.0 11.0 28.0 8.0 140.0 51.0 64.0 211.0 53.0 211.0 DAY 2 13 6 3 2 2 26 19 4 6 20 13 DAY WITH THUNDER STORM 0 0 0 4 4 1 0 2 0 2 0 1 14 DAYS WITH SNOW OR SLEET 0 8 0 0 0 0 0 0 0 0 0 2 10 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 270 270 360 45 360 45 360 180 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 1.9 3.8 3.5 3.6 3.4 4.0 3.8 1.6 2.1 2.7 3.7 2.7 2.7 PREVAILING WIND PERCENT 29.8 22.0 23.9 21.3 21.5 18.0 20.2 21.1 24.7 28.7 27.6 40.9 20.2 CALMS PERCENT OF WIND 0.0 0.0 0.0 0.0 0.0 0.8 0.4 0.4 0.4 0.4 0.0 0.0 0.2 NO. OF WIND OBSERVATION 248 223 247 239 247 239 247 247 239 247 239 247 2909 VECTOR WIND DIRECTION (MEAN) 315 311 331 37 22 36 11 334 351 331 317 302 334 VECTOR WIND MAGNITUDE(KNOTS) 0.9 2.0 1.9 1.4 1.3 1.1 1.1 0.7 1.0 2.6 4.5 2.7 1.5 WIND STEADINESES (MEAN %) 36.0 48.8 55.9 46.7 41.9 36.7 37.9 25.9 34.5 60.5 70.3 71.1 42.9 WIND SPEED (MEAN KNOTS) 2.5 4.1 3.4 3.0 3.1 3.0 2.9 2.7 2.9 4.3 6.4 3.8 3.5 FASTEST WIND DIRECTION 340 340 310 360 90 70 50 310 360 310 340 310 340 FASTEST WIND SPEED (KNOTS) 12 30 27 18 20 15 12 12 35 28 38 30 38 DAY 1 12 6 2 18 17 15 19 20 7 28 12 DAYS WITH SKY CLEAR (0-2)/8 7 4 2 7 7 12 16 11 6 2 3 5 82 DAYS WITH P.CLOUDY (3-6)/8 7 6 8 8 9 9 10 5 6 6 6 5 85 DAYS WITH CLOUDY (7-8)/8 17 18 21 15 15 9 5 15 18 23 21 21 198 DAYS WITH VISIBILITY =< 2 KM 12 14 7 6 2 0 1 5 7 11 13 9 87 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1021.8 1021.9 1023.9 1018.7 1015.5 1014.9 1010.7 1011.1 1014.9 1022.0 1026.4 1026.9 1019.0 MAX. QFE PRESSURE IN HPA 1034.8 1032.7 1032.3 1029.4 1026.9 1022.9 1019.2 1019.4 1024.9 1036.3 1035.9 1041.7 1041.7 DAY-HOUR 2- 6 13-21 14-18 3- 0 2-18 8- 9 13-18 24- 3 28- 3 26- 6 29- 6 14- 6 MIN. QFE PRESSURE IN HPA 1009.9 1009.8 1013.2 1005.7 1001.8 1004.1 1006.5 1003.8 1003.3 1006.1 1015.6 1014.3 1001.8 DAY-HOUR 31-12 24- 0 17-15 24-12 19-12 1- 6 25-15 9- 0 2-12 12- 9 5-18 6- 0 MEAN QNH PRESSURE IN HPA 1018.4 1018.4 1020.4 1015.2 1012.0 1011.4 1007.2 1007.6 1011.4 1018.5 1022.9 1023.4 1015.6 MAX. QNH PRESSURE IN HPA 1031.3 1029.2 1028.8 1025.9 1023.4 1019.4 1015.7 1015.9 1021.4 1032.8 1032.4 1038.2 1038.2 DAY-HOUR 2- 6 13-21 14-18 3- 0 2-18 8- 9 13-18 24- 3 28- 3 26- 6 29- 6 14- 6 MIN. QNH PRESSURE IN HPA 1006.5 1006.4 1009.8 1002.3 998.4 1000.7 1003.1 1000.4 999.9 1002.7 1012.2 1010.9 998.4 DAY-HOUR 31-12 24- 0 17-15 24-12 19-12 1- 6 25-15 9- 0 2-12 12- 9 5-18 6- 0 MEAN QFF PRESSURE IN HPA 1018.6 1018.6 1020.7 1015.5 1012.4 1011.9 1007.7 1008.1 1011.8 1018.8 1023.2 1023.6 1015.9 MAX. QFF PRESSURE IN HPA 1031.5 1029.3 1029.0 1026.1 1023.7 1019.8 1016.2 1016.3 1021.8 1033.1 1032.6 1038.3 1038.3 DAY-HOUR 2- 6 13-21 14-18 3- 0 2-18 8- 9 13-18 24- 3 28- 3 26- 6 29-18 14- 6 MIN. QFF PRESSURE IN HPA 1006.7 1006.6 1010.0 1002.6 998.8 1001.1 1003.5 1000.8 1000.3 1003.0 1012.4 1011.1 998.8 DAY-HOUR 31-12 24- 0 17-15 24-12 19-12 1- 6 25-15 9- 0 2-15 12- 9 5-18 6- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1021.6 1021.4 1023.5 1018.4 1015.4 1014.8 1010.5 1011.0 1014.9 1021.9 1026.2 1026.9 1018.9 MAX. QFE PRESSURE IN HPA 1032.4 1031.7 1029.6 1029.4 1025.3 1021.7 1014.7 1019.0 1024.8 1032.3 1034.6 1041.5 1041.5 DAY 21 14 15 3 3 8 15 24 28 20 29 14 MIN. QFE PRESSURE IN HPA 1011.8 1009.8 1015.0 1008.0 1003.3 1006.2 1007.1 1003.8 1005.3 1007.5 1016.1 1014.3 1003.3 DAY 19 24 1 5 19 17 11 9 2 12 6 6 MEAN QNH PRESSURE IN HPA 1018.1 1018.0 1020.0 1015.0 1011.9 1011.3 1007.1 1007.6 1011.5 1018.5 1022.7 1023.4 1015.4 MAX. QNH PRESSURE IN HPA 1028.9 1028.2 1026.1 1025.9 1021.8 1018.2 1011.3 1015.5 1021.3 1028.8 1031.1 1038.0 1038.0 DAY 21 14 15 3 3 8 15 24 28 20 29 14 MIN. QNH PRESSURE IN HPA 1008.4 1006.4 1011.6 1004.6 999.9 1002.8 1003.7 1000.4 1001.9 1004.1 1012.6 1010.9 999.9 DAY 19 24 1 5 19 17 11 9 2 12 6 6 MEAN QFF PRESSURE IN HPA 1018.4 1018.2 1020.2 1015.3 1012.3 1011.7 1007.5 1008.0 1011.9 1018.8 1023.0 1023.6 1015.7 MAX. QFF PRESSURE IN HPA 1029.1 1028.3 1026.3 1026.1 1022.1 1018.6 1011.7 1015.9 1021.7 1029.1 1031.3 1038.1 1038.1 DAY 21 14 15 3 3 21 15 24 28 20 29 14 MIN. QFF PRESSURE IN HPA 1008.6 1006.6 1011.7 1004.8 1000.3 1003.2 1004.1 1000.8 1002.3 1004.4 1013.0 1011.1 1000.3 DAY 19 24 1 5 19 17 11 9 2 12 6 6 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1021.7 1021.6 1023.8 1018.8 1015.6 1015.3 1010.9 1011.3 1015.3 1022.1 1026.2 1026.9 1019.1 MAX. QFE PRESSURE IN HPA 1032.5 1031.3 1030.5 1029.4 1024.6 1022.2 1015.1 1019.4 1024.9 1035.7 1034.6 1041.2 1041.2 DAY 21 14 14 3 3 21 2 24 28 26 29 14 MIN. QFE PRESSURE IN HPA 1012.4 1010.6 1014.6 1009.7 1002.4 1010.1 1007.9 1004.1 1005.2 1007.4 1016.2 1014.3 1002.4 DAY 19 24 1 5 19 16 20 9 2 12 6 6 MEAN QNH PRESSURE IN HPA 1018.2 1018.1 1020.3 1015.4 1012.2 1011.9 1007.5 1007.9 1011.8 1018.6 1022.7 1023.4 1015.7 MAX. QNH PRESSURE IN HPA 1029.0 1027.8 1027.0 1025.9 1021.1 1018.7 1011.7 1015.9 1021.4 1032.2 1031.1 1037.7 1037.7 DAY 21 14 14 3 3 21 2 24 28 26 29 14 MIN. QNH PRESSURE IN HPA 1009.0 1007.2 1011.2 1006.3 999.0 1006.7 1004.5 1000.7 1001.8 1004.0 1012.7 1010.9 999.0 DAY 19 24 1 5 19 16 20 9 2 12 6 6 MEAN QFF PRESSURE IN HPA 1018.5 1018.3 1020.5 1015.7 1012.5 1012.3 1007.9 1008.3 1012.2 1019.0 1022.9 1023.6 1016.0 MAX. QFF PRESSURE IN HPA 1029.2 1027.9 1027.2 1026.1 1021.4 1019.1 1012.1 1016.3 1021.8 1032.5 1031.3 1037.8 1037.8 DAY 21 14 14 3 3 21 2 24 28 26 29 14 MIN. QFF PRESSURE IN HPA 1009.2 1007.4 1011.3 1006.6 999.4 1007.1 1004.9 1001.1 1002.2 1004.3 1013.0 1011.1 999.4 DAY 19 20 1 5 19 16 20 9 2 12 6 6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.7 1022.5 1024.4 1019.4 1016.2 1015.4 1011.3 1011.7 1015.8 1022.5 1027.2 1027.8 1019.7 MAX. QFE PRESSURE IN HPA 1034.8 1031.2 1031.7 1029.4 1024.7 1022.5 1015.6 1018.9 1024.8 1036.3 1035.9 1041.7 1041.7 DAY 2 14 14 3 3 21 2 24 28 26 29 14 MIN. QFE PRESSURE IN HPA 1014.2 1011.8 1015.9 1010.4 1002.3 1004.1 1008.4 1005.0 1004.7 1006.8 1018.0 1015.0 1002.3 DAY 31 24 1 24 19 1 20 9 2 12 6 6 MEAN QNH PRESSURE IN HPA 1019.3 1019.0 1020.9 1015.9 1012.8 1011.9 1007.8 1008.2 1012.3 1019.0 1023.7 1024.3 1016.3 MAX. QNH PRESSURE IN HPA 1031.3 1027.7 1028.2 1025.9 1021.2 1019.0 1012.2 1015.4 1021.3 1032.8 1032.4 1038.2 1038.2 DAY 2 14 14 3 3 21 2 24 28 26 29 14 MIN. QNH PRESSURE IN HPA 1010.8 1008.4 1012.4 1007.0 998.9 1000.7 1005.0 1001.6 1001.3 1003.4 1014.5 1011.6 998.9 DAY 31 24 1 24 19 1 20 9 2 12 6 6 MEAN QFF PRESSURE IN HPA 1019.5 1019.2 1021.1 1016.2 1013.1 1012.3 1008.3 1008.6 1012.7 1019.3 1023.9 1024.5 1016.6 MAX. QFF PRESSURE IN HPA 1031.5 1027.8 1028.4 1026.1 1021.5 1019.4 1012.6 1015.8 1021.7 1033.1 1032.6 1038.3 1038.3 DAY 2 14 14 3 3 21 2 24 28 26 29 14 MIN. QFF PRESSURE IN HPA 1011.0 1008.6 1012.6 1007.3 999.3 1001.1 1005.4 1002.1 1001.7 1003.7 1014.8 1011.8 999.3 DAY 31 24 1 24 19 1 20 9 2 12 6 6 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1022.3 1022.4 1024.0 1019.7 1015.9 1015.3 1011.1 1011.3 1015.0 1021.8 1026.6 1027.1 1019.4 MAX. QFE PRESSURE IN HPA 1034.7 1032.0 1031.8 1028.8 1025.3 1022.9 1015.6 1018.5 1023.6 1035.3 1035.8 1040.5 1040.5 DAY 2 13 14 3 2 8 2 24 28 26 29 14 MIN. QFE PRESSURE IN HPA 1011.5 1011.5 1015.7 1010.8 1002.2 1007.7 1007.4 1005.7 1003.9 1006.1 1017.2 1014.5 1002.2 DAY 31 19 1 13 19 1 25 9 2 12 5 6 MEAN QNH PRESSURE IN HPA 1018.9 1018.9 1020.6 1016.2 1012.5 1011.8 1007.7 1007.8 1011.6 1018.3 1023.2 1023.7 1015.9 MAX. QNH PRESSURE IN HPA 1031.2 1028.5 1028.3 1025.3 1021.8 1019.4 1012.2 1015.0 1020.1 1031.8 1032.3 1037.0 1037.0 DAY 2 13 14 3 2 8 2 24 28 26 29 14 MIN. QNH PRESSURE IN HPA 1008.1 1008.1 1012.2 1007.4 998.8 1004.3 1004.0 1002.3 1000.5 1002.7 1013.7 1011.1 998.8 DAY 31 19 1 13 19 1 25 9 2 12 5 6 MEAN QFF PRESSURE IN HPA 1019.1 1019.1 1021.1 1016.5 1012.7 1012.5 1008.1 1008.3 1012.2 1018.8 1023.4 1023.7 1016.3 MAX. QFF PRESSURE IN HPA 1031.4 1028.6 1028.5 1025.5 1022.1 1019.8 1012.6 1015.4 1020.5 1032.1 1032.5 1037.1 1037.1 DAY 2 13 14 3 2 8 2 24 28 26 29 14 MIN. QFF PRESSURE IN HPA 1008.3 1008.2 1012.8 1007.7 999.2 1005.6 1004.4 1002.7 1000.9 1003.0 1014.0 1011.4 999.2 DAY 31 19 28 13 19 16 25 9 2 12 5 6 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1021.5 1021.5 1023.3 1018.3 1015.2 1014.3 1010.5 1010.7 1014.1 1021.3 1026.1 1026.5 1018.6 MAX. QFE PRESSURE IN HPA 1032.4 1031.9 1031.3 1027.4 1025.4 1021.6 1014.8 1018.1 1022.6 1034.4 1035.2 1039.3 1039.3 DAY 2 10 14 27 2 20 2 24 27 26 29 13 MIN. QFE PRESSURE IN HPA 1009.9 1010.3 1014.1 1005.7 1001.8 1007.1 1006.6 1004.7 1003.3 1008.4 1016.0 1014.8 1001.8 DAY 31 19 17 24 19 16 25 5 2 12 5 5 MEAN QNH PRESSURE IN HPA 1018.1 1018.0 1019.8 1014.9 1011.7 1010.9 1007.0 1007.3 1010.7 1017.9 1022.6 1023.0 1015.2 MAX. QNH PRESSURE IN HPA 1028.9 1028.4 1027.8 1023.9 1021.9 1018.1 1011.4 1014.6 1019.1 1030.9 1031.7 1035.8 1035.8 DAY 2 10 14 27 2 20 2 24 27 26 29 13 MIN. QNH PRESSURE IN HPA 1006.5 1006.9 1010.7 1002.3 998.4 1003.7 1003.2 1001.3 999.9 1005.0 1012.5 1011.4 998.4 DAY 31 19 17 24 19 16 25 5 2 12 5 5 MEAN QFF PRESSURE IN HPA 1018.3 1018.2 1020.0 1015.2 1012.1 1011.3 1007.5 1007.7 1011.1 1018.2 1022.9 1023.2 1015.5 MAX. QFF PRESSURE IN HPA 1029.1 1028.5 1028.0 1024.2 1022.2 1018.5 1011.8 1015.0 1019.5 1031.2 1031.9 1035.9 1035.9 DAY 2 10 14 27 2 20 2 24 27 26 29 13 MIN. QFF PRESSURE IN HPA 1006.7 1007.0 1010.9 1002.6 998.8 1004.1 1003.6 1001.8 1000.3 1005.3 1012.8 1011.6 998.8 DAY 31 19 17 24 19 16 25 5 2 12 5 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1021.7 1021.8 1023.6 1018.0 1014.9 1014.4 1010.0 1010.5 1014.0 1021.9 1026.4 1026.8 1018.7 MAX. QFE PRESSURE IN HPA 1031.8 1032.4 1031.9 1027.5 1026.1 1021.8 1014.3 1018.1 1023.7 1033.4 1035.1 1040.4 1040.4 DAY 21 10 14 27 2 7 2 24 23 26 29 13 MIN. QFE PRESSURE IN HPA 1010.3 1010.3 1013.2 1005.9 1003.0 1005.4 1006.5 1004.6 1003.3 1009.3 1016.1 1014.8 1003.0 DAY 31 19 17 24 19 16 25 5 2 13 5 5 MEAN QNH PRESSURE IN HPA 1018.2 1018.3 1020.2 1014.5 1011.5 1011.0 1006.6 1007.1 1010.6 1018.5 1022.9 1023.3 1015.2 MAX. QNH PRESSURE IN HPA 1028.3 1028.9 1028.4 1024.0 1022.6 1018.3 1010.9 1014.6 1020.2 1029.9 1031.6 1036.9 1036.9 DAY 21 10 14 27 2 7 2 24 23 26 29 13 MIN. QNH PRESSURE IN HPA 1006.9 1006.9 1009.8 1002.5 999.6 1002.0 1003.1 1001.2 999.9 1005.9 1012.6 1011.4 999.6 DAY 31 19 17 24 19 16 25 5 2 13 5 5 MEAN QFF PRESSURE IN HPA 1018.5 1018.5 1020.4 1014.8 1011.8 1011.4 1007.0 1007.5 1011.0 1018.8 1023.2 1023.6 1015.5 MAX. QFF PRESSURE IN HPA 1028.5 1029.0 1028.6 1024.3 1022.9 1018.7 1011.3 1015.0 1020.6 1030.2 1031.8 1037.0 1037.0 DAY 21 10 14 27 2 7 2 24 23 26 29 13 MIN. QFF PRESSURE IN HPA 1007.1 1007.0 1010.0 1002.8 1000.0 1002.4 1003.5 1001.6 1000.3 1006.2 1012.9 1011.6 1000.0 DAY 31 19 17 24 19 16 25 5 2 13 5 5 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1021.8 1022.1 1024.3 1018.6 1015.4 1014.8 1010.6 1011.0 1014.8 1022.3 1026.6 1026.8 1019.1 MAX. QFE PRESSURE IN HPA 1031.6 1032.6 1032.3 1028.2 1026.9 1021.8 1019.2 1018.6 1024.6 1032.9 1035.9 1040.9 1040.9 DAY 21 13 14 27 2 7 13 24 23 26 29 13 MIN. QFE PRESSURE IN HPA 1011.6 1010.5 1013.8 1006.4 1004.1 1005.2 1007.2 1004.8 1005.2 1009.2 1015.6 1014.8 1004.1 DAY 31 19 17 4 19 16 10 8 2 13 5 5 MEAN QNH PRESSURE IN HPA 1018.3 1018.7 1020.8 1015.2 1011.9 1011.4 1007.1 1007.6 1011.3 1018.8 1023.1 1023.3 1015.6 MAX. QNH PRESSURE IN HPA 1028.1 1029.1 1028.8 1024.7 1023.4 1018.3 1015.7 1015.1 1021.1 1029.4 1032.4 1037.4 1037.4 DAY 21 13 14 27 2 7 13 24 23 26 29 13 MIN. QNH PRESSURE IN HPA 1008.2 1007.1 1010.4 1003.0 1000.7 1001.8 1003.8 1001.4 1001.8 1005.8 1012.2 1011.4 1000.7 DAY 31 19 17 4 19 16 10 8 2 13 5 5 MEAN QFF PRESSURE IN HPA 1018.6 1018.8 1021.0 1015.5 1012.3 1011.8 1007.6 1008.0 1011.7 1019.1 1023.4 1023.5 1015.9 MAX. QFF PRESSURE IN HPA 1028.3 1029.2 1029.0 1025.0 1023.7 1018.7 1016.2 1015.5 1021.5 1029.7 1032.6 1037.5 1037.5 DAY 21 13 14 27 2 7 13 24 23 26 29 13 MIN. QFF PRESSURE IN HPA 1008.4 1007.2 1010.6 1003.3 1001.1 1002.2 1004.2 1001.9 1002.2 1006.1 1012.4 1011.6 1001.1 DAY 31 19 17 4 19 16 10 8 2 13 5 5 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1021.4 1022.0 1024.3 1018.4 1015.5 1014.9 1010.5 1011.1 1015.1 1022.0 1026.3 1026.7 1019.0 MAX. QFE PRESSURE IN HPA 1031.9 1032.7 1031.1 1029.2 1026.5 1021.9 1015.1 1019.0 1024.7 1032.4 1034.7 1041.2 1041.2 DAY 20 13 14 2 2 7 14 23 27 19 29 13 MIN. QFE PRESSURE IN HPA 1011.5 1010.5 1015.3 1006.4 1004.3 1004.8 1007.3 1004.6 1005.5 1009.3 1015.7 1014.5 1004.3 DAY 18 19 17 4 18 16 10 8 1 13 5 5 MEAN QNH PRESSURE IN HPA 1018.0 1018.5 1020.8 1014.9 1012.1 1011.5 1007.1 1007.7 1011.6 1018.5 1022.8 1023.3 1015.6 MAX. QNH PRESSURE IN HPA 1028.4 1029.2 1027.6 1025.7 1023.0 1018.4 1011.7 1015.5 1021.2 1028.9 1031.2 1037.7 1037.7 DAY 20 13 14 2 2 7 14 23 27 19 29 13 MIN. QNH PRESSURE IN HPA 1008.1 1007.1 1011.9 1003.0 1000.9 1001.4 1003.9 1001.2 1002.1 1005.9 1012.2 1011.1 1000.9 DAY 18 19 17 4 18 16 10 8 1 13 5 5 MEAN QFF PRESSURE IN HPA 1018.2 1018.7 1021.1 1015.2 1012.5 1011.9 1007.5 1008.1 1012.0 1018.8 1023.1 1023.5 1015.9 MAX. QFF PRESSURE IN HPA 1028.6 1029.3 1027.8 1025.9 1023.3 1018.8 1012.1 1015.9 1021.6 1029.2 1031.4 1037.8 1037.8 DAY 20 13 14 2 2 20 14 23 27 19 29 13 MIN. QFF PRESSURE IN HPA 1008.3 1007.2 1012.1 1003.3 1001.3 1001.8 1004.3 1001.7 1002.5 1006.2 1012.5 1011.3 1001.3 DAY 18 19 17 4 18 16 10 8 1 13 25 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.4 7.7 6.6 12.3 18.5 23.7 25.2 25.2 22.5 20.0 14.3 10.9 16.3 MINIMUN AIR TEMPERATURE (C) 5.1 4.2 3.2 9.6 15.0 19.7 20.7 21.3 19.9 15.4 10.9 7.5 12.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 11 19 24 13 0 0 0 67 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 3 5 0 0 0 0 0 0 0 0 0 8 TEMPERATURE RECORDS LOWEST(C) 1.0 -1.0 -2.0 5.0 9.0 15.0 17.0 18.0 16.0 13.0 8.0 5.0 -2.0 DAY 29 11 14 7 19 9 10 26 21 12 10 21 MAXIMUM AIR TEMPERATURE (C) 12.2 11.4 9.7 15.9 22.3 27.7 29.8 28.9 25.8 23.8 18.2 14.6 20.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 0 8 20 11 3 0 0 0 43 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 22.0 25.0 19.0 32.0 29.0 35.0 33.0 33.0 30.0 27.0 27.0 21.0 35.0 DAY 9 19 31 25 28 17 6 1 4 2 19 1 DIF. BETWEEN (MAX.-MIN.) (C) 7.1 7.2 6.5 6.3 7.3 8.0 9.1 7.6 5.9 8.4 7.3 7.1 7.3 MEAN DAILY TEMP. (MDT) (C) 8.6 7.8 6.5 12.8 18.6 23.7 25.2 25.1 22.8 19.6 14.6 11.1 16.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 2.5 10.0 86.0 131.5 127.0 67.0 1.0 0.0 0.0 425.0 HEATING DEG. DAYS(BASE 18 0C) 290.5 295.5 358.0 163.0 23.0 0.0 0.0 0.0 0.0 0.5 108.0 208.0 1446.5 DEWPOINT (MEAN C) 6.3 5.8 4.8 9.7 15.8 19.7 20.7 21.4 20.3 16.9 11.6 8.9 13.5 MIXING RATIO (G/KG) 5.94 5.76 5.36 7.58 11.32 14.51 15.50 16.12 15.02 12.06 8.56 7.01 10.40 VAPOUR PRESSURE (HPA) 9.66 9.38 8.74 12.26 18.20 23.09 24.59 25.55 24.00 19.43 13.89 11.43 16.68 SATURATION DEF. (HPA) 1.52 1.34 1.19 2.48 3.43 6.67 7.88 6.78 3.72 4.24 2.78 1.71 3.64 RELATIVE HUMIDITY (MEAN %) 89 89 89 85 85 80 78 80 88 83 85 88 85 RELATIVE HUMIDITY (MAX. %) 97 97 97 94 96 93 92 93 97 96 95 95 95 RELATIVE HUMIDITY (MIN. %) 75 77 78 73 72 65 61 67 77 71 74 77 72 RELATIVE HUMIDITY (MEAN% 03UTC) 93 93 95 93 94 91 88 89 96 95 95 93 93 RELATIVE HUMIDITY (MEAN% 09UTC) 80 83 82 78 76 69 65 70 81 75 77 79 76 RELATIVE HUMIDITY (MEAN% 15UTC) 90 88 87 83 82 76 73 77 84 83 85 86 83 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 36.5 52.8 235.5 90.2 34.7 176.0 35.1 119.2 483.6 147.6 454.2 106.3 1971.7 DAYS WITH PRECIPITATION >=10 2 3 7 3 1 3 1 4 9 3 9 3 48 DAYS WITH PRECIPITATION >= 5 3 4 9 6 2 3 3 6 11 6 9 5 67 DAYS WITH PRECIPITATION >= 1 8 8 17 10 2 5 7 10 12 7 11 7 104 DAYS WITH PRECIPITATION 8 12 17 18 4 5 8 13 14 8 12 9 128 GREATEST DAILY PRECIPITATION 13.0 17.0 55.0 25.0 27.0 141.0 15.6 36.0 118.0 60.0 248.0 33.0 248.0 DAY 27 10 12 14 18 21 7 25 18 22 20 19 DAY WITH THUNDER STORM 0 0 0 2 5 6 1 2 2 3 0 1 22 DAYS WITH SNOW OR SLEET 0 1 3 0 0 0 0 0 0 0 0 0 4 DAYS WITH DUST 1 0 0 0 0 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 270 360 360 360 360 360 360 360 360 360 360 270 360 PREVAILING WIND SPEED(KNOTS) 1.8 4.7 6.6 2.7 3.1 3.9 6.3 3.4 3.5 4.0 4.2 4.6 4.2 PREVAILING WIND PERCENT 23.1 21.8 30.0 37.2 24.3 21.3 19.4 28.7 21.3 23.2 25.0 35.5 22.8 CALMS PERCENT OF WIND 0.0 0.9 2.8 9.6 4.5 7.1 7.3 9.3 26.4 15.3 18.6 3.7 8.4 NO. OF WIND OBSERVATION 247 216 247 239 247 239 247 247 239 177 172 242 2759 VECTOR WIND DIRECTION (MEAN) 296 353 351 354 26 20 353 360 28 335 332 292 345 VECTOR WIND MAGNITUDE(KNOTS) 0.6 1.2 2.6 1.0 1.5 1.1 1.6 1.1 1.1 1.7 1.2 3.0 1.3 WIND STEADINESES (MEAN %) 24.0 38.7 60.5 38.5 55.6 37.9 47.1 47.8 57.9 56.7 50.0 62.5 43.3 WIND SPEED (MEAN KNOTS) 2.5 3.1 4.3 2.6 2.7 2.9 3.4 2.3 1.9 3.0 2.4 4.8 3.0 FASTEST WIND DIRECTION 180 340 310 180 360 20 360 340 50 310 360 310 340 FASTEST WIND SPEED (KNOTS) 16 33 32 30 19 20 30 15 23 20 20 31 33 DAY 9 10 9 1 17 21 21 12 5 7 7 19 DAYS WITH SKY CLEAR (0-2)/8 7 3 6 4 6 15 15 9 8 18 9 5 105 DAYS WITH P.CLOUDY (3-6)/8 11 7 3 6 12 7 8 11 8 6 8 10 97 DAYS WITH CLOUDY (7-8)/8 13 18 22 20 13 8 8 11 14 7 13 16 163 DAYS WITH VISIBILITY =< 2 KM 11 7 11 6 4 4 1 0 1 2 3 3 53 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1021.9 1022.9 1023.0 1019.2 1019.2 1013.7 1012.0 1011.8 1018.4 1021.9 1024.1 1026.5 1019.5 MAX. QFE PRESSURE IN HPA 1032.1 1033.9 1038.7 1042.7 1029.4 1024.5 1016.6 1020.0 1026.9 1028.6 1035.1 1032.3 1042.7 DAY-HOUR 27-18 7- 6 19-15 7- 6 4-15 7- 6 8-21 14- 6 19-18 22- 9 25-21 4- 0 MIN. QFE PRESSURE IN HPA 1010.5 1010.5 1004.7 1004.7 1006.0 1002.8 1002.4 1003.0 1010.8 1014.0 1006.3 1013.2 1002.4 DAY-HOUR 20-12 21- 3 2-12 1- 9 31- 0 20-15 5-15 23-18 13-15 10-12 19-12 29-12 MEAN QNH PRESSURE IN HPA 1018.4 1019.4 1019.5 1015.8 1015.7 1010.2 1008.5 1008.3 1014.9 1018.4 1020.7 1023.1 1016.1 MAX. QNH PRESSURE IN HPA 1028.6 1030.4 1035.2 1039.2 1025.9 1021.0 1013.1 1016.5 1023.4 1025.1 1031.6 1028.8 1039.2 DAY-HOUR 27-18 7- 6 19-15 7- 6 4-15 7- 6 8-21 14- 6 19-18 22- 9 25-21 4- 0 MIN. QNH PRESSURE IN HPA 1007.1 1007.1 1001.3 1001.3 1002.6 999.4 999.0 999.6 1007.4 1010.6 1002.9 1009.8 999.0 DAY-HOUR 20-12 21- 3 2-12 1- 9 31- 0 20-15 5-15 23-18 13-15 10-12 19-12 29-12 MEAN QFF PRESSURE IN HPA 1018.6 1020.2 1019.8 1016.1 1016.1 1010.7 1009.0 1008.8 1015.4 ****** ****** 1023.3 ****** MAX. QFF PRESSURE IN HPA 1028.8 1030.6 1035.3 1039.4 1026.2 1021.4 1013.6 1017.0 1023.8 ****** ****** 1029.1 ****** DAY-HOUR 27-18 7- 9 19-15 7- 6 4-15 7- 9 29- 6 14- 6 19-18 **-** **-** 4- 0 MIN. QFF PRESSURE IN HPA 1007.3 1007.3 1001.5 1002.7 1003.0 999.8 999.4 1000.1 1007.8 ****** ****** 1010.0 ****** DAY-HOUR 20-12 21- 3 2-12 25-15 31- 0 20-15 5-15 23-18 13-15 **-** **-** 29-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1022.1 1023.8 1022.4 1018.4 1019.1 1013.7 1011.8 1011.5 1018.2 ****** ****** 1026.3 ****** MAX. QFE PRESSURE IN HPA 1031.4 1032.1 1036.5 1040.0 1027.4 1023.5 1016.5 1019.5 1025.4 ****** ****** 1032.3 ****** DAY 28 7 19 7 25 7 9 14 20 ** ** 4 MIN. QFE PRESSURE IN HPA 1012.2 1013.8 1009.7 1006.2 1006.0 1007.3 1002.5 1003.5 1011.0 ****** ****** 1018.1 ****** DAY 23 3 2 27 31 20 6 24 4 ** ** 1 MEAN QNH PRESSURE IN HPA 1018.6 1020.3 1019.0 1014.9 1015.6 1010.3 1008.4 1008.1 1014.7 ****** ****** 1022.9 ****** MAX. QNH PRESSURE IN HPA 1027.9 1028.6 1033.0 1036.5 1023.9 1020.0 1013.0 1016.0 1021.9 ****** ****** 1028.8 ****** DAY 28 7 19 7 25 7 9 14 20 ** ** 4 MIN. QNH PRESSURE IN HPA 1008.8 1010.4 1006.3 1002.8 1002.6 1003.9 999.1 1000.1 1007.6 ****** ****** 1014.6 ****** DAY 23 3 2 27 31 20 6 24 4 ** ** 1 MEAN QFF PRESSURE IN HPA 1018.9 1020.6 1019.2 1015.2 1016.0 1010.7 1008.8 1008.5 1015.1 ****** ****** 1023.1 ****** MAX. QFF PRESSURE IN HPA 1028.1 1028.8 1033.2 1036.7 1024.3 1020.4 1013.4 1016.5 1022.3 ****** ****** 1029.1 ****** DAY 28 7 19 7 25 7 9 14 20 ** ** 4 MIN. QFF PRESSURE IN HPA 1009.0 1010.6 1006.5 1003.2 1003.0 1004.3 999.5 1000.5 1008.0 ****** ****** 1014.9 ****** DAY 23 3 2 27 31 20 6 24 4 ** ** 1 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1022.0 1022.4 1022.7 1018.9 1019.4 1014.2 1012.1 1012.1 1018.5 1022.0 1024.0 1026.4 1019.6 MAX. QFE PRESSURE IN HPA 1030.4 1032.6 1037.1 1041.4 1028.1 1023.8 1016.4 1019.6 1025.0 1027.4 1034.2 1032.3 1041.4 DAY 28 7 19 7 5 7 9 14 20 31 26 4 MIN. QFE PRESSURE IN HPA 1011.9 1010.5 1009.0 1007.2 1007.8 1007.2 1005.1 1005.4 1011.0 1015.6 1007.0 1017.3 1005.1 DAY 23 21 2 1 30 20 5 24 4 21 19 29 MEAN QNH PRESSURE IN HPA 1018.6 1018.9 1019.2 1015.4 1016.0 1010.7 1008.7 1008.6 1015.0 1018.5 1020.5 1022.9 1016.1 MAX. QNH PRESSURE IN HPA 1026.9 1029.1 1033.6 1037.9 1024.6 1020.3 1012.9 1016.1 1021.5 1023.9 1030.7 1028.8 1037.9 DAY 28 7 19 7 5 7 9 14 20 31 26 4 MIN. QNH PRESSURE IN HPA 1008.5 1007.1 1005.6 1003.8 1004.4 1003.8 1001.7 1002.0 1007.6 1012.2 1003.6 1013.8 1001.7 DAY 23 21 2 1 30 20 5 24 4 21 19 29 MEAN QFF PRESSURE IN HPA 1018.8 1019.2 1019.4 1015.7 1016.3 1011.1 1009.1 1009.0 1015.4 1018.9 1020.8 1023.2 1016.4 MAX. QFF PRESSURE IN HPA 1027.1 1029.3 1033.8 1038.1 1024.9 1020.7 1013.3 1016.6 1021.9 1024.3 1030.9 1029.0 1038.1 DAY 28 7 19 7 5 7 9 14 20 31 26 4 MIN. QFF PRESSURE IN HPA 1008.7 1007.3 1005.8 1004.1 1004.8 1004.2 1002.1 1002.4 1008.0 1012.5 1003.9 1014.1 1002.1 DAY 23 21 2 1 30 20 5 24 4 21 19 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.6 1023.2 1023.7 1019.8 1019.9 1014.5 1012.5 1012.6 1019.1 1022.9 1024.9 1027.4 1020.3 MAX. QFE PRESSURE IN HPA 1030.6 1033.9 1038.1 1042.7 1029.0 1024.5 1016.6 1020.0 1026.2 1028.3 1034.7 1032.2 1042.7 DAY 27 7 19 7 5 7 29 14 20 22 26 4 MIN. QFE PRESSURE IN HPA 1012.9 1012.2 1007.6 1006.5 1008.8 1007.2 1005.1 1006.4 1011.6 1016.1 1007.0 1017.2 1005.1 DAY 23 19 2 1 30 20 5 23 4 10 19 29 MEAN QNH PRESSURE IN HPA 1019.1 1019.7 1020.3 1016.3 1016.4 1011.1 1009.0 1009.1 1015.7 1019.4 1021.4 1023.9 1016.8 MAX. QNH PRESSURE IN HPA 1027.1 1030.4 1034.6 1039.2 1025.5 1021.0 1013.1 1016.5 1022.7 1024.8 1031.2 1028.7 1039.2 DAY 27 7 19 7 5 7 29 14 20 22 26 4 MIN. QNH PRESSURE IN HPA 1009.5 1008.8 1004.2 1003.1 1005.4 1003.8 1001.7 1003.0 1008.2 1012.6 1003.6 1013.7 1001.7 DAY 23 19 2 1 30 20 5 23 4 10 19 29 MEAN QFF PRESSURE IN HPA 1019.4 1021.6 1020.5 1016.6 1016.8 1011.5 1009.5 1009.6 1016.1 ****** ****** 1024.2 ****** MAX. QFF PRESSURE IN HPA 1027.3 1030.6 1034.7 1039.4 1025.8 1021.4 1013.6 1017.0 1023.1 ****** ****** 1029.0 ****** DAY 27 7 19 7 5 7 29 14 20 ** ** 4 MIN. QFF PRESSURE IN HPA 1009.7 1010.1 1004.4 1003.4 1005.8 1004.2 1002.1 1003.4 1008.6 ****** ****** 1014.0 ****** DAY 23 3 2 1 30 20 5 23 4 ** ** 29 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1021.6 1022.8 1023.5 1019.6 1019.6 1014.3 1012.4 1012.3 1018.8 1022.5 1024.2 1026.5 1019.8 MAX. QFE PRESSURE IN HPA 1030.7 1033.9 1038.6 1042.6 1029.1 1024.5 1016.4 1019.7 1026.5 1028.6 1033.5 1030.5 1042.6 DAY 27 7 19 7 5 7 29 14 20 22 26 4 MIN. QFE PRESSURE IN HPA 1011.1 1011.9 1006.5 1004.7 1007.9 1006.1 1004.6 1005.6 1011.8 1014.8 1006.6 1014.8 1004.6 DAY 16 21 2 1 30 30 5 23 4 10 19 29 MEAN QNH PRESSURE IN HPA 1018.2 1019.4 1020.0 1016.2 1016.1 1010.8 1009.0 1008.8 1015.4 1019.0 1020.7 1023.0 1016.4 MAX. QNH PRESSURE IN HPA 1027.2 1030.4 1035.1 1039.1 1025.6 1021.0 1012.9 1016.2 1023.0 1025.1 1030.0 1027.0 1039.1 DAY 27 7 19 7 5 7 29 14 20 22 26 4 MIN. QNH PRESSURE IN HPA 1007.7 1008.5 1003.1 1001.3 1004.5 1002.7 1001.2 1002.2 1008.4 1011.4 1003.2 1011.4 1001.2 DAY 16 21 2 1 30 30 5 23 4 10 19 29 MEAN QFF PRESSURE IN HPA 1018.5 1021.5 1020.5 1017.0 1016.3 1011.3 1009.6 1009.4 1015.9 ****** ****** 1023.5 ****** MAX. QFF PRESSURE IN HPA 1027.4 1030.6 1035.2 1039.3 1025.9 1021.4 1013.4 1016.7 1023.4 ****** ****** 1027.3 ****** DAY 27 7 19 7 5 7 29 14 20 ** ** 8 MIN. QFF PRESSURE IN HPA 1007.9 1010.1 1003.3 1005.0 1004.9 1003.1 1001.6 1002.6 1008.8 ****** ****** 1011.6 ****** DAY 16 29 2 25 30 30 5 23 4 ** ** 29 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1021.0 1021.7 1022.7 1019.2 1018.7 1013.3 1011.6 1011.5 1017.9 1021.4 1023.4 1026.1 1019.1 MAX. QFE PRESSURE IN HPA 1030.6 1033.0 1038.4 1042.6 1027.4 1024.2 1015.7 1018.1 1026.4 1027.2 1032.5 1029.9 1042.6 DAY 27 10 19 7 5 7 21 14 20 22 25 8 MIN. QFE PRESSURE IN HPA 1010.5 1010.9 1004.7 1006.2 1006.8 1004.1 1002.8 1004.2 1011.2 1014.0 1006.3 1013.2 1002.8 DAY 20 21 2 25 30 20 5 23 13 10 19 29 MEAN QNH PRESSURE IN HPA 1017.6 1018.3 1019.2 1015.8 1015.3 1009.9 1008.1 1008.0 1014.5 1017.9 1019.9 1022.7 1015.6 MAX. QNH PRESSURE IN HPA 1027.1 1029.5 1034.9 1039.1 1023.9 1020.7 1012.2 1014.6 1022.9 1023.7 1029.0 1026.4 1039.1 DAY 27 10 19 7 5 7 21 14 20 22 25 8 MIN. QNH PRESSURE IN HPA 1007.1 1007.5 1001.3 1002.8 1003.4 1000.7 999.4 1000.8 1007.8 1010.6 1002.9 1009.8 999.4 DAY 20 21 2 25 30 20 5 23 13 10 19 29 MEAN QFF PRESSURE IN HPA 1017.8 1020.1 1019.5 1016.1 1015.6 1010.3 1008.5 1008.5 1014.9 ****** ****** 1022.9 ****** MAX. QFF PRESSURE IN HPA 1027.3 1029.7 1035.0 1039.3 1024.3 1021.1 1012.7 1015.1 1023.3 ****** ****** 1026.7 ****** DAY 27 10 19 7 5 7 21 14 20 ** ** 8 MIN. QFF PRESSURE IN HPA 1007.3 1008.1 1001.5 1003.1 1003.8 1001.1 999.8 1001.2 1008.2 ****** ****** 1010.0 ****** DAY 20 29 2 25 30 20 5 23 13 ** ** 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1021.6 1021.9 1022.8 1019.2 1018.6 1012.8 1011.5 1011.0 1017.8 1021.4 1023.7 1026.5 1019.1 MAX. QFE PRESSURE IN HPA 1031.5 1033.5 1038.7 1042.6 1029.4 1023.6 1016.2 1017.5 1026.0 1027.5 1034.3 1030.1 1042.6 DAY 27 10 19 7 4 7 21 14 19 27 25 3 MIN. QFE PRESSURE IN HPA 1012.4 1011.2 1005.9 1005.8 1006.3 1002.8 1002.4 1003.1 1010.8 1014.6 1006.6 1013.2 1002.4 DAY 9 29 2 25 30 20 5 23 13 10 19 29 MEAN QNH PRESSURE IN HPA 1018.2 1018.4 1019.4 1015.7 1015.2 1009.3 1008.0 1007.6 1014.4 1018.0 1020.2 1023.0 1015.6 MAX. QNH PRESSURE IN HPA 1028.0 1030.0 1035.2 1039.1 1025.9 1020.1 1012.7 1014.0 1022.5 1024.0 1030.8 1026.6 1039.1 DAY 27 10 19 7 4 7 21 14 19 27 25 3 MIN. QNH PRESSURE IN HPA 1009.0 1007.8 1002.5 1002.4 1002.9 999.4 999.0 999.7 1007.4 1011.2 1003.2 1009.8 999.0 DAY 9 29 2 25 30 20 5 23 13 10 19 29 MEAN QFF PRESSURE IN HPA 1018.4 1018.6 1019.6 1016.0 1015.5 1009.7 1008.5 1008.0 1014.8 1018.3 1020.5 1023.2 1015.9 MAX. QFF PRESSURE IN HPA 1028.2 1030.2 1035.3 1039.3 1026.2 1020.5 1013.2 1014.5 1022.9 1024.4 1031.1 1026.9 1039.3 DAY 27 10 19 7 4 7 21 14 19 27 25 7 MIN. QFF PRESSURE IN HPA 1009.3 1008.0 1002.7 1002.7 1003.3 999.8 999.4 1000.1 1007.8 1011.5 1003.5 1010.0 999.4 DAY 9 29 2 25 30 20 5 23 13 20 19 29 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1022.1 1023.7 1023.2 1019.7 1019.0 1013.2 1012.0 1011.7 1018.5 ****** ****** 1026.7 ****** MAX. QFE PRESSURE IN HPA 1032.1 1033.4 1038.6 1042.4 1027.9 1023.6 1016.4 1018.8 1026.9 ****** ****** 1031.1 ****** DAY 27 10 19 7 8 7 8 13 19 ** ** 3 MIN. QFE PRESSURE IN HPA 1013.3 1012.7 1009.2 1006.8 1006.9 1004.0 1002.7 1003.0 1010.8 ****** ****** 1015.7 ****** DAY 9 29 2 25 30 20 5 23 13 ** ** 29 MEAN QNH PRESSURE IN HPA 1018.7 1020.2 1019.7 1016.2 1015.6 1009.8 1008.5 1008.2 1015.1 ****** ****** 1023.2 ****** MAX. QNH PRESSURE IN HPA 1028.6 1029.9 1035.1 1038.9 1024.4 1020.1 1012.9 1015.3 1023.4 ****** ****** 1027.6 ****** DAY 27 10 19 7 8 7 8 13 19 ** ** 3 MIN. QNH PRESSURE IN HPA 1009.9 1009.3 1005.8 1003.4 1003.5 1000.6 999.3 999.6 1007.4 ****** ****** 1012.2 ****** DAY 9 29 2 25 30 20 5 23 13 ** ** 29 MEAN QFF PRESSURE IN HPA 1018.9 1020.5 1019.9 1016.5 1015.9 1010.2 1008.9 1008.7 1015.5 ****** ****** 1023.5 ****** MAX. QFF PRESSURE IN HPA 1028.8 1030.1 1035.2 1039.1 1024.7 1020.5 1013.4 1015.8 1023.8 ****** ****** 1027.9 ****** DAY 27 10 19 7 8 7 21 13 19 ** ** 3 MIN. QFF PRESSURE IN HPA 1010.2 1009.5 1006.0 1003.7 1003.9 1001.0 999.7 1000.1 1007.8 ****** ****** 1012.5 ****** DAY 9 29 2 25 30 20 5 23 13 ** ** 29 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1022.0 1024.1 1023.0 1019.1 1019.3 1013.6 1012.2 1011.7 1018.5 ****** ****** 1026.5 ****** MAX. QFE PRESSURE IN HPA 1031.9 1032.4 1037.8 1040.3 1027.7 1022.6 1016.6 1019.5 1026.3 ****** ****** 1031.6 ****** DAY 27 10 19 7 24 7 8 13 19 ** ** 3 MIN. QFE PRESSURE IN HPA 1013.2 1014.1 1010.3 1007.2 1006.5 1007.1 1002.7 1003.0 1011.6 ****** ****** 1018.1 ****** DAY 22 2 1 25 30 20 5 23 13 ** ** 29 MEAN QNH PRESSURE IN HPA 1018.5 1020.6 1019.6 1015.7 1015.8 1010.2 1008.8 1008.2 1015.1 ****** ****** 1023.0 ****** MAX. QNH PRESSURE IN HPA 1028.4 1028.9 1034.3 1036.8 1024.2 1019.1 1013.1 1016.0 1022.8 ****** ****** 1028.1 ****** DAY 27 10 19 7 24 7 8 13 19 ** ** 3 MIN. QNH PRESSURE IN HPA 1009.8 1010.7 1006.9 1003.8 1003.1 1003.7 999.3 999.6 1008.2 ****** ****** 1014.6 ****** DAY 22 2 1 25 30 20 5 23 13 ** ** 29 MEAN QFF PRESSURE IN HPA 1018.8 1020.8 1019.8 1016.0 1016.2 1010.6 1009.2 1008.7 1015.5 ****** ****** 1023.3 ****** MAX. QFF PRESSURE IN HPA 1028.6 1029.0 1034.4 1037.0 1024.6 1019.5 1013.5 1016.5 1023.2 ****** ****** 1028.4 ****** DAY 27 10 19 7 24 7 21 13 19 ** ** 3 MIN. QFF PRESSURE IN HPA 1010.0 1010.9 1007.1 1004.2 1003.5 1004.1 999.7 1000.1 1008.6 ****** ****** 1014.9 ****** DAY 22 2 1 25 30 20 5 23 13 ** ** 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.3 8.1 9.6 13.8 20.8 24.2 25.8 25.4 20.6 16.8 14.4 11.7 16.6 MINIMUN AIR TEMPERATURE (C) 4.4 5.1 5.6 10.1 17.3 19.7 21.6 20.6 17.9 14.4 10.7 8.1 13.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 13 28 15 2 0 0 0 59 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 2 0 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS LOWEST(C) 1.0 0.0 1.0 3.0 14.0 13.0 19.0 18.0 15.0 11.0 5.0 4.0 0.0 DAY 30 1 5 17 4 7 16 9 20 29 25 26 MAXIMUM AIR TEMPERATURE (C) 12.3 11.0 13.9 18.2 25.3 28.9 30.1 30.1 23.9 20.3 18.7 15.9 20.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 1 14 21 20 0 0 0 0 56 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 23.0 21.0 23.0 27.0 30.0 33.0 33.0 33.0 29.0 25.0 26.0 22.0 33.0 DAY 18 7 24 28 31 16 21 6 12 1 16 22 DIF. BETWEEN (MAX.-MIN.) (C) 7.9 5.9 8.3 8.1 8.0 9.2 8.5 9.5 6.0 5.9 8.0 7.8 7.7 MEAN DAILY TEMP. (MDT) (C) 8.4 8.1 9.8 14.2 21.3 24.3 25.9 25.4 20.9 17.3 14.7 12.0 16.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 27.5 104.0 151.0 135.0 21.0 0.5 0.0 0.0 439.0 HEATING DEG. DAYS(BASE 18 0C) 279.5 278.0 255.5 124.0 0.5 0.0 0.0 0.0 0.0 36.5 99.0 186.0 1259.0 DEWPOINT (MEAN C) 5.3 5.7 6.7 11.3 17.6 19.3 21.0 20.9 18.5 14.5 12.0 9.7 13.6 MIXING RATIO (G/KG) 5.55 5.72 6.16 8.45 12.73 14.28 15.71 15.71 13.33 10.27 8.88 7.50 10.36 VAPOUR PRESSURE (HPA) 9.06 9.32 9.99 13.65 20.33 22.71 24.92 24.97 21.33 16.64 14.36 12.15 16.62 SATURATION DEF. (HPA) 2.14 1.61 2.32 2.55 4.63 8.12 8.84 8.01 3.14 2.69 2.40 1.80 4.02 RELATIVE HUMIDITY (MEAN %) 83 86 83 86 83 76 76 77 89 87 87 88 83 RELATIVE HUMIDITY (MAX. %) 93 95 94 96 96 92 90 91 97 97 97 97 95 RELATIVE HUMIDITY (MIN. %) 70 74 70 72 66 59 62 63 77 75 72 75 70 RELATIVE HUMIDITY (MEAN% 03UTC) 89 92 90 92 94 88 87 86 95 95 94 94 91 RELATIVE HUMIDITY (MEAN% 09UTC) 76 81 76 78 74 65 65 66 82 78 77 83 75 RELATIVE HUMIDITY (MEAN% 15UTC) 82 84 79 84 79 68 70 74 86 85 84 86 80 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 160.7 116.2 51.0 79.0 96.4 17.0 28.8 24.0 496.0 419.0 96.8 104.3 1689.2 DAYS WITH PRECIPITATION >=10 4 5 2 2 3 1 1 1 13 9 3 2 46 DAYS WITH PRECIPITATION >= 5 8 10 5 4 3 1 1 2 14 12 4 3 67 DAYS WITH PRECIPITATION >= 1 11 10 7 8 5 3 3 4 17 12 5 5 90 DAYS WITH PRECIPITATION 14 12 9 10 7 3 4 8 19 14 7 6 113 GREATEST DAILY PRECIPITATION 63.0 22.2 19.0 32.0 36.0 12.0 24.0 13.0 109.0 119.0 65.0 75.0 119.0 DAY 3 16 10 15 29 6 15 8 3 24 14 16 DAY WITH THUNDER STORM 0 0 2 2 8 3 2 1 0 0 2 0 20 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 0 0 0 0 0 1 0 0 0 0 1 WIND DIRECTION (PREVAILING) 270 360 360 360 45 45 45 45 270 270 360 270 360 PREVAILING WIND SPEED(KNOTS) 4.0 5.2 5.2 4.0 4.5 4.0 6.1 6.5 5.8 4.4 7.9 2.8 6.6 PREVAILING WIND PERCENT 23.5 22.9 22.7 27.2 21.9 25.9 23.9 19.4 30.1 21.9 16.3 19.8 17.6 CALMS PERCENT OF WIND 2.2 4.9 8.5 13.0 7.7 10.9 11.3 9.7 9.6 9.3 11.3 11.3 9.2 NO. OF WIND OBSERVATION 230 223 247 239 247 239 247 247 239 247 239 247 2891 VECTOR WIND DIRECTION (MEAN) 308 325 21 7 52 37 17 16 322 339 341 309 348 VECTOR WIND MAGNITUDE(KNOTS) 2.1 2.8 1.8 1.5 1.7 1.5 1.6 1.8 3.4 3.4 1.4 1.4 1.7 WIND STEADINESES (MEAN %) 48.8 60.9 48.6 53.6 54.8 50.0 42.1 35.3 58.6 60.7 37.8 38.9 41.5 WIND SPEED (MEAN KNOTS) 4.3 4.6 3.7 2.8 3.1 3.0 3.8 5.1 5.8 5.6 3.7 3.6 4.1 FASTEST WIND DIRECTION 310 310 340 310 50 360 360 20 270 360 360 310 360 FASTEST WIND SPEED (KNOTS) 28 30 20 21 22 23 16 26 35 38 27 24 38 DAY 29 18 9 22 17 6 12 20 19 17 14 31 DAYS WITH SKY CLEAR (0-2)/8 6 5 9 7 13 20 16 15 5 7 5 7 115 DAYS WITH P.CLOUDY (3-6)/8 12 6 7 9 13 9 6 10 4 9 13 15 113 DAYS WITH CLOUDY (7-8)/8 11 17 15 14 5 1 9 6 21 15 12 9 135 DAYS WITH VISIBILITY =< 2 KM 5 4 7 7 8 0 0 2 10 11 9 6 69 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1024.4 1024.1 1020.4 1019.2 1014.1 1013.2 1011.9 1014.4 1017.0 1024.6 1021.2 1020.0 1018.7 MAX. QFE PRESSURE IN HPA 1034.5 1035.9 1038.8 1032.3 1025.5 1020.9 1018.8 1021.7 1023.6 1037.2 1029.9 1031.1 1038.8 DAY-HOUR 8- 6 21- 9 3-21 16-18 1- 6 6-21 24- 6 26- 6 24- 6 24-18 14-18 6- 6 MIN. QFE PRESSURE IN HPA 1009.6 1014.3 1008.5 1005.0 1002.0 1004.1 1003.1 1004.5 1006.4 1011.6 1004.7 1000.0 1000.0 DAY-HOUR 20-12 8-15 14-15 13- 3 27-15 5-15 11-15 19-15 12-12 15-12 22-12 22-15 MEAN QNH PRESSURE IN HPA 1020.9 1020.7 1017.0 1015.8 1010.6 1009.7 1008.4 1011.0 1013.6 1021.1 1017.8 1016.6 1015.3 MAX. QNH PRESSURE IN HPA 1031.0 1032.4 1035.3 1028.8 1022.0 1017.4 1015.3 1018.2 1020.1 1033.7 1026.4 1027.6 1035.3 DAY-HOUR 8- 6 21- 9 3-21 16-18 1- 6 6-21 24- 6 26- 6 24- 6 24-18 14-18 6- 6 MIN. QNH PRESSURE IN HPA 1006.2 1010.9 1005.1 1001.6 998.6 1000.7 999.7 1001.1 1003.0 1008.2 1001.3 996.6 996.6 DAY-HOUR 20-12 8-15 14-15 13- 3 27-15 5-15 11-15 19-15 12-12 15-12 22-12 22-15 MEAN QFF PRESSURE IN HPA 1021.2 1020.9 1017.2 1016.1 1011.0 1010.2 1008.9 1011.4 1014.0 1021.4 1018.1 1016.8 1015.6 MAX. QFF PRESSURE IN HPA 1031.2 1032.6 1035.5 1029.0 1022.4 1017.8 1015.8 1018.7 1020.5 1034.0 1026.7 1027.9 1035.5 DAY-HOUR 8- 6 21- 9 3-21 16-18 1- 6 6-21 24- 6 26- 9 24- 9 24-18 14-18 6- 6 MIN. QFF PRESSURE IN HPA 1006.5 1011.1 1005.3 1001.9 999.0 1001.1 1000.1 1001.5 1003.4 1008.5 1001.6 996.9 996.9 DAY-HOUR 20-12 8-15 14-15 13- 3 27-15 5-15 11-15 19-15 12-12 15-12 22-15 22-15 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1024.5 1023.9 1020.1 1018.7 1014.0 1012.9 1011.7 1014.4 1016.8 1024.3 1021.2 1020.1 1018.5 MAX. QFE PRESSURE IN HPA 1033.1 1034.8 1038.0 1030.5 1023.6 1020.6 1017.4 1020.8 1022.9 1036.6 1028.2 1029.3 1038.0 DAY 8 22 4 17 1 7 24 26 25 25 15 7 MIN. QFE PRESSURE IN HPA 1012.0 1015.2 1009.3 1005.4 1005.1 1004.8 1007.9 1005.8 1007.1 1013.0 1007.4 1004.8 1004.8 DAY 18 14 15 13 25 1 20 19 12 15 22 22 MEAN QNH PRESSURE IN HPA 1021.0 1020.4 1016.6 1015.3 1010.6 1009.5 1008.3 1010.9 1013.4 1020.8 1017.7 1016.6 1015.1 MAX. QNH PRESSURE IN HPA 1029.6 1031.3 1034.5 1027.0 1020.1 1017.1 1013.9 1017.3 1019.4 1033.1 1024.7 1025.8 1034.5 DAY 8 22 4 17 1 7 24 26 25 25 15 7 MIN. QNH PRESSURE IN HPA 1008.6 1011.8 1005.9 1002.0 1001.7 1001.4 1004.5 1002.4 1003.7 1009.6 1004.0 1001.4 1001.4 DAY 18 14 15 13 25 1 20 19 12 15 22 22 MEAN QFF PRESSURE IN HPA 1021.1 1020.6 1016.8 1015.6 1011.0 1009.9 1008.7 1011.4 1013.8 1021.1 1018.0 1016.9 1015.4 MAX. QFF PRESSURE IN HPA 1029.8 1031.5 1034.7 1027.2 1020.5 1017.5 1014.4 1017.8 1019.8 1033.4 1025.0 1026.1 1034.7 DAY 8 22 4 17 1 7 24 26 25 25 15 7 MIN. QFF PRESSURE IN HPA 1008.9 1012.0 1006.2 1002.3 1002.1 1001.8 1004.9 1002.8 1004.1 1009.9 1004.3 1001.6 1001.6 DAY 18 14 15 13 25 1 20 19 12 15 22 22 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1024.3 1023.9 1020.6 1019.1 1014.9 1013.5 1012.2 1014.8 1017.1 1024.4 1021.5 1020.3 1018.9 MAX. QFE PRESSURE IN HPA 1033.1 1034.8 1037.2 1030.5 1025.1 1020.5 1018.2 1021.1 1022.7 1036.2 1027.7 1029.7 1037.2 DAY 8 22 4 17 1 7 24 26 25 25 15 6 MIN. QFE PRESSURE IN HPA 1011.8 1015.8 1010.2 1005.0 1006.7 1005.6 1007.3 1005.8 1007.2 1012.8 1005.7 1004.3 1004.3 DAY 18 7 30 13 31 1 11 19 12 15 22 22 MEAN QNH PRESSURE IN HPA 1020.8 1020.5 1017.2 1015.7 1011.4 1010.0 1008.8 1011.4 1013.6 1020.9 1018.0 1016.8 1015.4 MAX. QNH PRESSURE IN HPA 1029.6 1031.3 1033.7 1027.0 1021.6 1017.0 1014.7 1017.6 1019.2 1032.7 1024.2 1026.2 1033.7 DAY 8 22 4 17 1 7 24 26 25 25 15 6 MIN. QNH PRESSURE IN HPA 1008.4 1012.3 1006.8 1001.6 1003.3 1002.2 1003.9 1002.4 1003.8 1009.4 1002.3 1000.9 1000.9 DAY 18 7 30 13 31 1 11 19 12 15 22 22 MEAN QFF PRESSURE IN HPA 1020.9 1020.7 1017.4 1016.0 1011.8 1010.5 1009.2 1011.8 1014.0 1021.3 1018.3 1017.1 1015.7 MAX. QFF PRESSURE IN HPA 1029.8 1031.5 1033.9 1027.2 1021.9 1017.4 1015.2 1018.1 1019.6 1033.0 1024.5 1026.5 1033.9 DAY 8 22 4 17 1 7 24 26 25 25 15 6 MIN. QFF PRESSURE IN HPA 1008.7 1012.6 1007.0 1001.9 1003.6 1002.6 1004.3 1002.8 1004.2 1009.7 1002.6 1001.1 1001.1 DAY 18 7 30 13 31 1 11 19 12 15 22 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1025.2 1024.9 1021.5 1019.8 1015.2 1013.9 1012.8 1015.4 1017.7 1025.1 1022.2 1021.0 1019.6 MAX. QFE PRESSURE IN HPA 1034.5 1035.8 1037.1 1030.4 1025.5 1020.6 1018.8 1021.7 1023.6 1036.6 1029.4 1031.1 1037.1 DAY 8 21 4 17 1 7 24 26 24 24 14 6 MIN. QFE PRESSURE IN HPA 1013.0 1015.7 1010.7 1006.8 1006.3 1005.5 1006.0 1006.0 1007.4 1012.6 1006.1 1004.4 1004.4 DAY 18 7 30 13 31 14 11 19 12 15 22 22 MEAN QNH PRESSURE IN HPA 1021.7 1021.4 1018.1 1016.3 1011.8 1010.4 1009.3 1011.9 1014.3 1021.7 1018.8 1017.5 1016.1 MAX. QNH PRESSURE IN HPA 1031.0 1032.3 1033.6 1026.9 1022.0 1017.1 1015.3 1018.2 1020.1 1033.1 1025.9 1027.6 1033.6 DAY 8 21 4 17 1 7 24 26 24 24 14 6 MIN. QNH PRESSURE IN HPA 1009.6 1012.2 1007.3 1003.4 1002.9 1002.1 1002.6 1002.6 1004.0 1009.2 1002.7 1001.0 1001.0 DAY 18 7 30 13 31 14 11 19 12 15 22 22 MEAN QFF PRESSURE IN HPA 1022.0 1021.6 1018.3 1016.6 1012.2 1010.8 1009.8 1012.3 1014.6 1022.0 1019.1 1017.8 1016.4 MAX. QFF PRESSURE IN HPA 1031.2 1032.5 1033.8 1027.1 1022.4 1017.5 1015.8 1018.7 1020.5 1033.4 1026.2 1027.9 1033.8 DAY 8 21 4 17 1 7 24 26 24 24 14 6 MIN. QFF PRESSURE IN HPA 1009.9 1012.5 1007.5 1003.7 1003.3 1002.5 1003.0 1003.0 1004.4 1009.5 1003.0 1001.2 1001.2 DAY 18 7 30 13 31 14 11 19 12 15 22 22 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1024.6 1024.7 1021.1 1019.7 1014.7 1013.6 1012.5 1015.1 1017.4 1024.7 1021.5 1020.3 1019.2 MAX. QFE PRESSURE IN HPA 1033.6 1035.9 1037.1 1031.9 1024.0 1020.3 1018.7 1021.7 1023.6 1036.8 1029.1 1030.8 1037.1 DAY 8 21 3 16 1 23 24 26 24 24 14 6 MIN. QFE PRESSURE IN HPA 1012.7 1015.7 1010.4 1007.3 1004.8 1005.6 1004.9 1005.9 1006.9 1011.9 1006.3 1002.8 1002.8 DAY 18 7 30 29 31 14 11 19 12 15 22 22 MEAN QNH PRESSURE IN HPA 1021.1 1021.2 1017.7 1016.3 1011.2 1010.2 1009.1 1011.7 1013.9 1021.2 1018.1 1016.8 1015.7 MAX. QNH PRESSURE IN HPA 1030.1 1032.4 1033.6 1028.4 1020.5 1016.8 1015.2 1018.2 1020.1 1033.3 1025.6 1027.3 1033.6 DAY 8 21 3 16 1 23 24 26 24 24 14 6 MIN. QNH PRESSURE IN HPA 1009.3 1012.2 1007.0 1003.9 1001.4 1002.2 1001.5 1002.5 1003.5 1008.5 1002.9 999.4 999.4 DAY 18 7 30 29 31 14 11 19 12 15 22 22 MEAN QFF PRESSURE IN HPA 1021.5 1021.4 1017.7 1016.7 1011.3 1010.8 1009.5 1012.1 1014.5 1021.7 1018.2 1017.0 1016.0 MAX. QFF PRESSURE IN HPA 1030.3 1032.6 1033.8 1028.6 1020.4 1017.3 1015.7 1018.7 1020.5 1033.6 1025.9 1027.6 1033.8 DAY 8 21 3 16 17 23 24 26 24 24 14 6 MIN. QFF PRESSURE IN HPA 1009.6 1012.5 1007.2 1004.2 1001.8 1002.6 1001.9 1003.0 1003.9 1008.8 1003.2 999.7 999.7 DAY 18 7 30 29 31 14 11 19 12 15 22 22 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1023.8 1023.9 1019.9 1019.0 1013.6 1012.9 1011.5 1014.1 1016.5 1024.1 1020.7 1019.3 1018.3 MAX. QFE PRESSURE IN HPA 1032.7 1034.8 1037.3 1032.1 1023.0 1020.2 1016.9 1019.8 1023.1 1036.7 1029.7 1029.8 1037.3 DAY 8 21 3 16 17 7 24 20 24 24 14 6 MIN. QFE PRESSURE IN HPA 1009.6 1014.4 1008.7 1006.8 1002.9 1004.3 1003.9 1004.6 1006.4 1011.6 1004.7 1000.2 1000.2 DAY 20 8 14 29 31 5 11 19 12 15 22 22 MEAN QNH PRESSURE IN HPA 1020.3 1020.5 1016.5 1015.5 1010.1 1009.5 1008.0 1010.6 1013.1 1020.6 1017.2 1015.9 1014.8 MAX. QNH PRESSURE IN HPA 1029.2 1031.3 1033.8 1028.6 1019.5 1016.7 1013.4 1016.3 1019.6 1033.2 1026.2 1026.3 1033.8 DAY 8 21 3 16 17 7 24 20 24 24 14 6 MIN. QNH PRESSURE IN HPA 1006.2 1011.0 1005.3 1003.4 999.5 1000.9 1000.5 1001.2 1003.0 1008.2 1001.3 996.8 996.8 DAY 20 8 14 29 31 5 11 19 12 15 22 22 MEAN QFF PRESSURE IN HPA 1020.7 1020.7 1016.7 1015.8 1010.5 1009.9 1008.5 1011.1 1013.5 1020.9 1017.5 1016.1 1015.2 MAX. QFF PRESSURE IN HPA 1029.4 1031.5 1034.0 1028.8 1019.9 1017.1 1013.9 1016.8 1020.0 1033.5 1026.5 1026.6 1034.0 DAY 8 21 3 16 17 7 24 20 24 24 14 6 MIN. QFF PRESSURE IN HPA 1006.5 1011.2 1005.5 1003.7 999.9 1001.3 1000.9 1001.6 1003.4 1008.5 1001.6 997.1 997.1 DAY 20 8 14 29 31 5 11 19 12 15 22 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1024.2 1024.0 1019.8 1018.8 1013.1 1012.5 1010.9 1013.6 1016.5 1024.5 1021.0 1019.7 1018.2 MAX. QFE PRESSURE IN HPA 1032.5 1034.8 1037.8 1031.8 1022.4 1020.1 1015.9 1019.7 1023.1 1037.0 1029.7 1030.1 1037.8 DAY 8 21 3 16 17 7 15 20 24 24 14 6 MIN. QFE PRESSURE IN HPA 1009.8 1014.3 1008.5 1005.6 1002.0 1004.1 1003.1 1004.5 1007.1 1015.6 1004.7 1000.0 1000.0 DAY 26 8 14 29 27 5 11 19 12 15 22 22 MEAN QNH PRESSURE IN HPA 1020.8 1020.6 1016.3 1015.4 1009.7 1009.1 1007.5 1010.1 1013.1 1021.0 1017.5 1016.2 1014.8 MAX. QNH PRESSURE IN HPA 1029.0 1031.3 1034.3 1028.3 1018.9 1016.6 1012.4 1016.2 1019.6 1033.5 1026.2 1026.6 1034.3 DAY 8 21 3 16 17 7 15 20 24 24 14 6 MIN. QNH PRESSURE IN HPA 1006.4 1010.9 1005.1 1002.2 998.6 1000.7 999.7 1001.1 1003.7 1012.2 1001.3 996.6 996.6 DAY 26 8 14 29 27 5 11 19 12 15 22 22 MEAN QFF PRESSURE IN HPA 1021.0 1020.8 1016.6 1015.7 1010.0 1009.5 1007.9 1010.6 1013.5 1021.4 1017.8 1016.5 1015.1 MAX. QFF PRESSURE IN HPA 1029.2 1031.5 1034.5 1028.5 1019.3 1017.0 1012.8 1016.7 1020.0 1033.8 1026.5 1026.9 1034.5 DAY 8 21 3 16 17 7 15 20 24 24 14 6 MIN. QFF PRESSURE IN HPA 1006.6 1011.1 1005.3 1002.6 999.0 1001.1 1000.1 1001.5 1004.1 1012.5 1001.6 996.9 996.9 DAY 26 8 14 29 27 5 11 19 12 15 22 22 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1024.6 1024.1 1020.3 1019.5 1013.6 1012.9 1011.5 1014.0 1017.2 1024.9 1021.1 1020.0 1018.6 MAX. QFE PRESSURE IN HPA 1032.5 1035.0 1038.1 1032.3 1022.2 1020.7 1016.6 1019.8 1023.2 1037.2 1029.9 1030.2 1038.1 DAY 7 21 3 16 17 7 23 20 24 24 14 6 MIN. QFE PRESSURE IN HPA 1010.1 1014.3 1008.7 1005.7 1003.9 1005.2 1005.7 1004.8 1008.0 1015.7 1006.3 1000.7 1000.7 DAY 26 8 30 29 27 25 11 19 11 14 22 22 MEAN QNH PRESSURE IN HPA 1021.1 1020.6 1016.8 1016.0 1010.1 1009.4 1008.1 1010.6 1013.8 1021.4 1017.6 1016.6 1015.2 MAX. QNH PRESSURE IN HPA 1029.0 1031.5 1034.6 1028.8 1018.7 1017.2 1013.1 1016.3 1019.7 1033.7 1026.4 1026.7 1034.6 DAY 7 21 3 16 17 7 23 20 24 24 14 6 MIN. QNH PRESSURE IN HPA 1006.7 1010.9 1005.3 1002.3 1000.5 1001.8 1002.3 1001.4 1004.6 1012.2 1002.9 997.3 997.3 DAY 26 8 30 29 27 25 11 19 11 14 22 22 MEAN QFF PRESSURE IN HPA 1021.1 1020.9 1017.1 1016.3 1010.5 1009.9 1008.5 1011.0 1014.1 1021.8 1017.9 1016.8 1015.5 MAX. QFF PRESSURE IN HPA 1029.2 1031.7 1034.8 1029.0 1019.1 1017.6 1013.6 1016.8 1020.1 1034.0 1026.7 1027.0 1034.8 DAY 7 21 3 16 17 7 23 20 24 24 14 6 MIN. QFF PRESSURE IN HPA 1006.9 1011.1 1005.6 1002.7 1000.9 1002.2 1002.7 1001.9 1005.0 1012.6 1003.2 997.6 997.6 DAY 26 8 30 29 27 25 11 19 11 14 22 22 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1024.4 1023.8 1020.1 1019.2 1013.9 1013.2 1011.9 1014.3 1017.2 1024.7 1020.9 1019.7 1018.6 MAX. QFE PRESSURE IN HPA 1032.8 1034.8 1038.8 1031.2 1022.4 1020.9 1017.2 1019.9 1023.2 1036.9 1029.2 1029.9 1038.8 DAY 7 21 3 16 10 6 23 8 24 24 14 6 MIN. QFE PRESSURE IN HPA 1011.3 1014.7 1008.9 1006.4 1004.3 1005.4 1008.0 1004.8 1007.7 1014.0 1008.2 1002.5 1002.5 DAY 26 13 14 12 24 13 19 19 11 14 21 22 MEAN QNH PRESSURE IN HPA 1020.9 1020.4 1016.6 1015.7 1010.4 1009.8 1008.5 1010.9 1013.7 1021.2 1017.5 1016.2 1015.1 MAX. QNH PRESSURE IN HPA 1029.3 1031.3 1035.3 1027.7 1018.9 1017.4 1013.7 1016.4 1019.7 1033.4 1025.7 1026.4 1035.3 DAY 7 21 3 16 10 6 23 8 24 24 14 6 MIN. QNH PRESSURE IN HPA 1007.9 1011.3 1005.5 1003.0 1000.9 1002.0 1004.6 1001.4 1004.3 1010.6 1004.8 999.1 999.1 DAY 26 13 14 12 24 13 19 19 11 14 21 22 MEAN QFF PRESSURE IN HPA 1021.0 1020.6 1016.9 1016.0 1010.8 1010.2 1008.9 1011.3 1014.1 1021.5 1017.8 1016.5 1015.5 MAX. QFF PRESSURE IN HPA 1029.5 1031.5 1035.5 1027.9 1019.3 1017.8 1014.2 1016.9 1020.1 1033.7 1026.0 1026.7 1035.5 DAY 7 21 3 16 10 6 23 20 24 24 14 6 MIN. QFF PRESSURE IN HPA 1008.1 1011.5 1005.8 1003.3 1001.3 1002.4 1005.0 1001.9 1004.7 1010.9 1005.1 999.4 999.4 DAY 26 13 30 12 24 13 19 19 11 14 21 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.6 9.4 11.1 13.3 19.1 22.3 27.3 25.4 22.2 17.7 13.6 11.3 16.7 MINIMUN AIR TEMPERATURE (C) 4.6 6.4 8.1 10.1 15.8 18.4 22.5 21.3 18.5 14.2 11.1 7.6 13.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 6 31 15 4 0 0 0 56 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS LOWEST(C) 1.0 3.0 3.0 8.0 12.0 13.0 21.0 18.0 14.0 8.0 5.0 3.0 1.0 DAY 6 23 13 6 12 11 1 5 19 12 30 11 MAXIMUM AIR TEMPERATURE (C) 11.3 12.7 14.7 16.7 23.6 26.6 31.7 29.5 26.5 21.7 16.6 15.1 20.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 6 28 20 3 0 0 0 57 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.0 18.0 20.0 21.0 29.0 31.0 35.0 33.0 31.0 27.0 22.0 26.0 35.0 DAY 29 16 4 7 31 28 17 1 1 1 7 20 DIF. BETWEEN (MAX.-MIN.) (C) 6.7 6.3 6.6 6.6 7.8 8.2 9.2 8.2 8.0 7.5 5.5 7.5 7.4 MEAN DAILY TEMP. (MDT) (C) 7.9 9.5 11.4 13.4 19.7 22.5 27.1 25.4 22.5 18.0 13.9 11.4 16.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 8.0 61.0 189.0 137.0 54.5 9.0 0.0 0.0 458.5 HEATING DEG. DAYS(BASE 18 0C) 312.5 237.5 204.0 139.0 4.5 1.0 0.0 0.0 0.0 40.5 126.0 212.5 1277.5 DEWPOINT (MEAN C) 5.8 7.4 9.2 10.5 16.1 18.8 22.5 21.7 19.2 16.1 12.1 7.8 13.9 MIXING RATIO (G/KG) 5.67 6.36 7.21 7.94 11.47 13.75 17.40 16.46 14.04 11.50 8.80 6.61 10.60 VAPOUR PRESSURE (HPA) 9.27 10.33 11.68 12.84 18.43 21.95 27.53 26.17 22.47 18.54 14.33 10.74 17.02 SATURATION DEF. (HPA) 1.31 1.56 1.68 2.58 4.04 5.51 9.34 6.76 4.79 2.20 1.48 3.16 3.70 RELATIVE HUMIDITY (MEAN %) 89 88 88 84 84 82 76 82 84 91 91 82 85 RELATIVE HUMIDITY (MAX. %) 96 95 96 94 93 95 91 94 95 98 97 90 95 RELATIVE HUMIDITY (MIN. %) 79 78 77 73 70 68 61 66 71 81 82 69 73 RELATIVE HUMIDITY (MEAN% 03UTC) 93 92 90 91 91 91 87 91 92 97 96 85 91 RELATIVE HUMIDITY (MEAN% 09UTC) 82 84 82 76 75 73 64 69 74 84 84 78 77 RELATIVE HUMIDITY (MEAN% 15UTC) 85 85 87 81 80 76 70 77 79 88 90 81 82 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 224.0 38.9 38.0 62.8 10.2 81.1 33.0 342.9 448.2 405.4 210.7 230.6 2125.8 DAYS WITH PRECIPITATION >=10 10 1 2 3 0 3 1 7 4 7 6 7 51 DAYS WITH PRECIPITATION >= 5 10 2 2 3 0 4 2 8 5 8 7 8 59 DAYS WITH PRECIPITATION >= 1 14 10 5 12 6 6 2 10 7 11 10 15 108 DAYS WITH PRECIPITATION 14 11 5 16 11 6 2 11 9 15 14 16 130 GREATEST DAILY PRECIPITATION 45.0 14.0 19.0 18.0 3.0 25.0 28.0 74.0 353.0 99.0 53.0 73.0 353.0 DAY 5 11 11 21 24 17 13 24 17 10 9 10 DAY WITH THUNDER STORM 0 1 0 0 4 1 2 4 0 3 0 0 15 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 0 0 0 1 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 270 360 360 360 360 360 45 45 225 270 270 360 360 PREVAILING WIND SPEED(KNOTS) 4.5 8.1 4.2 5.2 6.5 4.3 5.1 4.5 1.8 5.4 3.0 9.0 7.1 PREVAILING WIND PERCENT 30.8 21.1 16.6 24.7 23.1 18.4 21.1 16.2 15.1 20.6 23.0 20.2 16.9 CALMS PERCENT OF WIND 10.9 14.8 13.8 14.6 9.7 11.7 13.8 14.6 15.9 14.6 18.0 9.7 13.5 NO. OF WIND OBSERVATION 247 223 247 239 247 239 247 247 239 247 239 247 2908 VECTOR WIND DIRECTION (MEAN) 311 336 31 12 27 5 35 35 342 331 356 305 352 VECTOR WIND MAGNITUDE(KNOTS) 2.9 2.3 1.3 1.4 2.4 1.5 1.5 0.8 1.0 2.8 1.3 1.4 1.5 WIND STEADINESES (MEAN %) 61.7 57.5 40.6 45.2 64.9 42.9 46.9 28.6 30.3 54.9 37.1 27.5 39.5 WIND SPEED (MEAN KNOTS) 4.7 4.0 3.2 3.1 3.7 3.5 3.2 2.8 3.3 5.1 3.5 5.1 3.8 FASTEST WIND DIRECTION 360 340 310 340 360 310 90 20 270 310 340 310 310 FASTEST WIND SPEED (KNOTS) 32 38 24 24 23 28 15 18 40 45 45 33 45 DAY 5 10 10 11 10 9 21 3 16 18 10 25 DAYS WITH SKY CLEAR (0-2)/8 6 4 2 5 10 12 23 19 15 4 5 8 113 DAYS WITH P.CLOUDY (3-6)/8 8 11 8 5 9 12 5 5 6 12 6 7 94 DAYS WITH CLOUDY (7-8)/8 17 13 21 20 12 6 3 7 9 15 19 16 158 DAYS WITH VISIBILITY =< 2 KM 12 3 6 3 2 5 1 6 3 10 4 6 61 DURATION OF SUNSHINE HOURS 99.1 102.3 80.7 108.7 215.8 250.8 317.7 235.7 195.7 117.5 99.3 102.6 1925.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1025.3 1020.5 1018.8 1019.7 1017.7 1015.9 1012.5 1015.8 1019.4 1022.7 1028.6 1021.7 1019.9 MAX. QFE PRESSURE IN HPA 1039.8 1036.5 1029.6 1032.8 1028.4 1025.9 1021.0 1025.4 1028.4 1030.9 1038.1 1037.9 1039.8 DAY-HOUR 18- 6 11- 6 5- 9 19- 6 18- 9 17-21 27- 6 26- 9 25- 6 18-15 23- 6 3-15 MIN. QFE PRESSURE IN HPA 1008.8 999.4 1000.4 1007.9 1008.1 1000.6 1004.2 1002.3 1006.6 1009.1 1019.2 1004.1 999.4 DAY-HOUR 4-12 20-15 28- 3 29- 0 9- 9 7-15 21-21 21-18 11-15 9-12 7- 0 19-12 MEAN QNH PRESSURE IN HPA 1021.8 1017.1 1015.3 1016.2 1014.2 1012.4 1009.0 1012.3 1016.0 1019.2 1025.1 1018.2 1016.4 MAX. QNH PRESSURE IN HPA 1036.3 1033.0 1026.1 1029.3 1024.9 1022.4 1017.5 1021.9 1024.9 1027.4 1034.6 1034.4 1036.3 DAY-HOUR 18- 6 11- 6 5- 9 19- 6 18- 9 17-21 27- 6 26- 9 25- 6 18-15 23- 6 3-15 MIN. QNH PRESSURE IN HPA 1005.4 996.0 997.0 1004.5 1004.7 997.2 1000.8 998.9 1003.2 1005.7 1015.7 1000.7 996.0 DAY-HOUR 4-12 20-15 28- 3 29- 0 9- 9 7-15 21-21 21-18 11-15 9-12 7- 0 19-12 MEAN QFF PRESSURE IN HPA 1022.0 1017.3 1015.6 1016.5 1014.6 1012.8 1009.5 1012.8 1016.4 1019.6 1025.5 1018.5 1016.7 MAX. QFF PRESSURE IN HPA 1036.5 1033.2 1026.4 1029.6 1025.3 1022.7 1018.0 1022.3 1025.3 1027.7 1034.9 1034.6 1036.5 DAY-HOUR 18- 6 11- 6 5- 9 19- 6 18- 9 17-21 27- 6 26- 9 25- 9 18-18 23- 6 3-15 MIN. QFF PRESSURE IN HPA 1005.6 996.3 997.3 1004.8 1005.0 997.6 1001.3 999.4 1003.6 1006.1 1016.1 1001.0 996.3 DAY-HOUR 4-12 20-15 28- 3 29- 0 9- 9 7-15 21-21 21-18 11-15 9-12 7- 0 19-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1025.2 1020.5 1018.2 1019.3 1017.5 1015.6 1012.3 1015.9 1019.3 1022.6 1028.6 1021.5 1019.7 MAX. QFE PRESSURE IN HPA 1038.9 1036.2 1028.4 1032.0 1026.8 1025.1 1018.9 1024.9 1027.0 1028.8 1036.7 1031.6 1038.9 DAY 18 11 6 19 19 18 27 26 26 12 23 4 MIN. QFE PRESSURE IN HPA 1011.6 1001.0 1000.8 1007.9 1009.6 1006.3 1004.5 1007.2 1009.6 1011.3 1019.2 1006.5 1000.8 DAY 4 18 28 29 11 14 22 22 11 10 7 20 MEAN QNH PRESSURE IN HPA 1021.7 1017.0 1014.8 1015.9 1014.0 1012.2 1008.8 1012.4 1015.8 1019.1 1025.1 1018.1 1016.2 MAX. QNH PRESSURE IN HPA 1035.4 1032.7 1024.9 1028.5 1023.3 1021.6 1015.4 1021.4 1023.5 1025.3 1033.2 1028.1 1035.4 DAY 18 11 6 19 19 18 27 26 26 12 23 4 MIN. QNH PRESSURE IN HPA 1008.2 997.6 997.4 1004.5 1006.2 1002.9 1001.1 1003.8 1006.2 1007.9 1015.7 1003.1 997.4 DAY 4 18 28 29 11 14 22 22 11 10 7 20 MEAN QFF PRESSURE IN HPA 1022.0 1017.3 1015.0 1016.1 1014.4 1012.6 1009.3 1012.9 1016.2 1019.5 1025.4 1018.4 1016.6 MAX. QFF PRESSURE IN HPA 1035.6 1032.9 1025.2 1028.8 1023.7 1022.0 1015.9 1021.8 1023.9 1025.6 1033.5 1028.3 1035.6 DAY 18 11 6 19 19 18 27 26 26 12 23 4 MIN. QFF PRESSURE IN HPA 1008.4 997.9 997.7 1004.8 1006.5 1003.3 1001.6 1004.3 1006.6 1008.3 1016.1 1003.5 997.7 DAY 4 18 28 29 11 14 22 22 11 10 7 20 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1025.2 1020.7 1018.8 1019.6 1017.9 1016.2 1012.9 1016.2 1019.6 1022.8 1028.5 1021.5 1020.0 MAX. QFE PRESSURE IN HPA 1038.9 1036.2 1028.0 1032.5 1026.6 1025.0 1019.9 1024.9 1027.3 1028.5 1036.9 1032.3 1038.9 DAY 18 11 6 19 19 18 6 26 25 28 23 10 MIN. QFE PRESSURE IN HPA 1009.6 1002.0 1000.4 1009.4 1009.2 1007.4 1005.9 1007.1 1009.4 1011.3 1019.9 1007.2 1000.4 DAY 4 18 28 29 9 7 4 21 11 10 7 20 MEAN QNH PRESSURE IN HPA 1021.7 1017.2 1015.3 1016.2 1014.4 1012.7 1009.5 1012.8 1016.2 1019.3 1025.0 1018.0 1016.5 MAX. QNH PRESSURE IN HPA 1035.4 1032.7 1024.5 1029.0 1023.1 1021.5 1016.4 1021.4 1023.8 1025.0 1033.4 1028.8 1035.4 DAY 18 11 6 19 19 18 6 26 25 28 23 10 MIN. QNH PRESSURE IN HPA 1006.2 998.6 997.0 1006.0 1005.8 1004.0 1002.5 1003.7 1006.0 1007.9 1016.4 1003.8 997.0 DAY 4 18 28 29 9 7 4 21 11 10 7 20 MEAN QFF PRESSURE IN HPA 1022.0 1017.5 1015.6 1016.5 1014.8 1013.1 1009.9 1013.2 1016.6 1019.7 1025.3 1018.3 1016.9 MAX. QFF PRESSURE IN HPA 1035.6 1032.9 1024.8 1029.3 1023.5 1021.9 1016.9 1021.8 1024.2 1025.3 1033.7 1029.0 1035.6 DAY 18 11 6 19 19 18 27 26 25 28 23 10 MIN. QFF PRESSURE IN HPA 1006.4 998.9 997.3 1006.3 1006.1 1004.4 1002.9 1004.1 1006.4 1008.2 1016.8 1004.2 997.3 DAY 4 18 28 29 9 7 4 21 11 10 7 20 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1026.0 1021.6 1019.6 1020.1 1018.2 1016.5 1013.2 1016.6 1020.1 1023.3 1029.2 1022.2 1020.6 MAX. QFE PRESSURE IN HPA 1039.8 1036.5 1028.7 1032.8 1028.2 1025.1 1021.0 1025.3 1028.4 1029.1 1038.1 1033.9 1039.8 DAY 18 11 5 19 18 18 27 26 25 27 23 10 MIN. QFE PRESSURE IN HPA 1009.7 1007.2 1002.3 1010.7 1008.6 1006.2 1005.7 1007.0 1009.3 1013.4 1020.8 1009.3 1002.3 DAY 4 20 28 29 9 7 4 21 11 9 7 19 MEAN QNH PRESSURE IN HPA 1022.5 1018.2 1016.2 1016.7 1014.8 1013.0 1009.7 1013.2 1016.7 1019.9 1025.7 1018.7 1017.1 MAX. QNH PRESSURE IN HPA 1036.3 1033.0 1025.2 1029.3 1024.7 1021.6 1017.5 1021.8 1024.9 1025.6 1034.6 1030.4 1036.3 DAY 18 11 5 19 18 18 27 26 25 27 23 10 MIN. QNH PRESSURE IN HPA 1006.3 1003.8 998.9 1007.3 1005.2 1002.8 1002.3 1003.6 1005.9 1010.0 1017.3 1005.9 998.9 DAY 4 20 28 29 9 7 4 21 11 9 7 19 MEAN QFF PRESSURE IN HPA 1022.7 1018.4 1016.5 1017.0 1015.1 1013.4 1010.2 1013.6 1017.1 1020.2 1026.0 1019.0 1017.4 MAX. QFF PRESSURE IN HPA 1036.5 1033.2 1025.5 1029.6 1025.1 1022.0 1018.0 1022.2 1025.3 1025.9 1034.9 1030.6 1036.5 DAY 18 11 5 19 18 18 27 26 25 27 23 10 MIN. QFF PRESSURE IN HPA 1006.5 1004.0 999.2 1007.6 1005.5 1003.2 1002.7 1004.0 1006.3 1010.3 1017.7 1006.2 999.2 DAY 4 20 28 29 9 7 4 21 11 10 7 19 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1025.5 1021.1 1019.6 1020.0 1018.1 1016.4 1013.0 1016.2 1019.9 1023.1 1029.0 1021.9 1020.3 MAX. QFE PRESSURE IN HPA 1039.1 1034.6 1029.6 1032.0 1028.4 1025.3 1021.0 1025.4 1028.4 1029.3 1037.6 1034.7 1039.1 DAY 18 11 5 19 18 17 27 26 25 11 23 3 MIN. QFE PRESSURE IN HPA 1009.2 1004.3 1003.5 1010.9 1008.1 1004.4 1005.6 1005.6 1008.8 1011.5 1020.1 1006.5 1003.5 DAY 4 20 28 29 9 7 4 21 11 9 7 19 MEAN QNH PRESSURE IN HPA 1022.0 1017.6 1016.2 1016.6 1014.6 1013.0 1009.6 1012.8 1016.5 1019.6 1025.5 1018.4 1016.9 MAX. QNH PRESSURE IN HPA 1035.6 1031.1 1026.1 1028.5 1024.9 1021.8 1017.5 1021.9 1024.9 1025.8 1034.1 1031.2 1035.6 DAY 18 11 5 19 18 17 27 26 25 11 23 3 MIN. QNH PRESSURE IN HPA 1005.8 1000.9 1000.1 1007.5 1004.7 1001.0 1002.2 1002.2 1005.4 1008.1 1016.6 1003.1 1000.1 DAY 4 20 28 29 9 7 4 21 11 9 7 19 MEAN QFF PRESSURE IN HPA 1022.2 1017.4 1016.5 1016.8 1015.0 1013.2 1010.1 1013.3 1017.0 1019.9 1025.9 1018.6 1017.1 MAX. QFF PRESSURE IN HPA 1035.8 1031.3 1026.4 1028.8 1025.3 1022.2 1018.0 1022.3 1025.3 1026.1 1034.4 1031.5 1035.8 DAY 18 11 5 19 18 17 27 26 25 27 23 3 MIN. QFF PRESSURE IN HPA 1006.0 1001.1 1000.4 1007.8 1005.0 1001.4 1002.6 1002.6 1005.8 1008.5 1017.0 1003.4 1000.4 DAY 4 20 28 29 9 7 4 21 11 9 7 19 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1024.6 1019.7 1018.6 1019.4 1017.5 1015.8 1012.4 1015.4 1019.2 1022.3 1028.1 1021.2 1019.5 MAX. QFE PRESSURE IN HPA 1037.4 1031.2 1028.5 1030.4 1027.5 1025.2 1020.0 1024.5 1028.0 1029.3 1037.0 1035.7 1037.4 DAY 18 11 5 19 18 17 27 26 25 11 23 3 MIN. QFE PRESSURE IN HPA 1008.8 1000.8 1001.8 1010.9 1008.1 1001.8 1005.4 1003.6 1007.3 1009.1 1019.8 1004.1 1000.8 DAY 4 20 27 29 9 7 21 21 11 9 7 19 MEAN QNH PRESSURE IN HPA 1021.1 1016.3 1015.1 1015.9 1014.1 1012.4 1008.9 1011.9 1015.7 1018.8 1024.7 1017.7 1016.0 MAX. QNH PRESSURE IN HPA 1033.9 1027.7 1025.0 1026.9 1024.0 1021.7 1016.5 1021.0 1024.5 1025.8 1033.5 1032.2 1033.9 DAY 18 11 5 19 18 17 27 26 25 11 23 3 MIN. QNH PRESSURE IN HPA 1005.4 997.4 998.4 1007.5 1004.7 998.4 1002.0 1000.2 1003.9 1005.7 1016.3 1000.7 997.4 DAY 4 20 27 29 9 7 21 21 11 9 7 19 MEAN QFF PRESSURE IN HPA 1021.3 1016.5 1015.4 1016.2 1014.4 1012.8 1009.4 1012.4 1016.1 1019.2 1025.0 1018.0 1016.4 MAX. QFF PRESSURE IN HPA 1034.1 1027.9 1025.3 1027.2 1024.4 1022.1 1017.0 1021.4 1024.9 1026.1 1033.8 1032.5 1034.1 DAY 18 11 5 19 18 17 27 26 25 18 23 3 MIN. QFF PRESSURE IN HPA 1005.6 997.7 998.7 1007.8 1005.1 998.8 1002.5 1000.6 1004.3 1006.1 1016.7 1001.0 997.7 DAY 4 20 27 29 9 7 21 21 11 9 7 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1025.1 1020.0 1018.4 1019.4 1017.2 1015.4 1011.8 1014.9 1018.9 1022.3 1028.3 1021.7 1019.4 MAX. QFE PRESSURE IN HPA 1037.3 1031.7 1028.3 1030.3 1027.1 1025.3 1019.0 1023.8 1027.9 1030.9 1036.6 1037.9 1037.9 DAY 18 1 5 18 18 17 27 26 25 18 23 3 MIN. QFE PRESSURE IN HPA 1011.6 999.4 1000.6 1011.9 1008.8 1000.6 1004.4 1003.3 1006.6 1009.8 1019.9 1004.4 999.4 DAY 4 20 27 28 9 7 21 21 11 9 6 19 MEAN QNH PRESSURE IN HPA 1021.6 1016.5 1014.9 1016.0 1013.7 1011.9 1008.3 1011.4 1015.4 1018.9 1024.8 1018.2 1016.0 MAX. QNH PRESSURE IN HPA 1033.8 1028.2 1024.8 1026.8 1023.6 1021.8 1015.5 1020.3 1024.4 1027.4 1033.1 1034.4 1034.4 DAY 18 1 5 18 18 17 27 26 25 18 23 3 MIN. QNH PRESSURE IN HPA 1008.2 996.0 997.2 1008.5 1005.4 997.2 1001.0 999.9 1003.2 1006.4 1016.4 1001.0 996.0 DAY 4 20 27 28 9 7 21 21 11 9 6 19 MEAN QFF PRESSURE IN HPA 1021.8 1016.8 1015.2 1016.3 1014.1 1012.3 1008.8 1011.9 1015.8 1019.2 1025.1 1018.4 1016.3 MAX. QFF PRESSURE IN HPA 1034.0 1028.4 1025.1 1027.1 1024.0 1022.2 1016.0 1020.7 1024.8 1027.7 1033.4 1034.6 1034.6 DAY 18 1 5 18 18 17 27 26 25 18 23 3 MIN. QFF PRESSURE IN HPA 1008.4 996.3 997.5 1008.8 1005.8 997.6 1001.4 1000.3 1003.6 1006.8 1016.8 1001.3 996.3 DAY 4 20 27 28 9 7 21 21 11 9 6 19 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1025.6 1020.4 1018.8 1020.0 1017.6 1015.5 1012.1 1015.5 1019.4 1022.6 1028.8 1021.9 1019.8 MAX. QFE PRESSURE IN HPA 1037.4 1032.7 1028.8 1032.0 1028.1 1025.4 1019.0 1024.8 1027.8 1030.9 1036.1 1036.2 1037.4 DAY 18 10 5 18 18 17 27 25 25 18 23 3 MIN. QFE PRESSURE IN HPA 1012.7 1002.0 1000.7 1010.8 1010.4 1001.9 1004.4 1002.3 1008.5 1011.3 1020.1 1004.9 1000.7 DAY 4 17 27 28 9 7 21 21 11 9 6 16 MEAN QNH PRESSURE IN HPA 1022.1 1016.9 1015.3 1016.5 1014.1 1012.1 1008.6 1012.1 1015.9 1019.2 1025.3 1018.4 1016.4 MAX. QNH PRESSURE IN HPA 1033.9 1029.2 1025.3 1028.5 1024.6 1021.9 1015.5 1021.3 1024.3 1027.4 1032.6 1032.7 1033.9 DAY 18 10 5 18 18 17 27 25 25 18 23 3 MIN. QNH PRESSURE IN HPA 1009.3 998.6 997.3 1007.4 1007.0 998.5 1001.0 998.9 1005.1 1007.9 1016.6 1001.5 997.3 DAY 4 17 27 28 9 7 21 21 11 9 6 16 MEAN QFF PRESSURE IN HPA 1022.4 1017.2 1015.6 1016.8 1014.5 1012.5 1009.1 1012.5 1016.3 1019.5 1025.6 1018.7 1016.7 MAX. QFF PRESSURE IN HPA 1034.1 1029.4 1025.6 1028.8 1025.0 1022.2 1016.0 1021.7 1024.7 1027.7 1032.9 1033.0 1034.1 DAY 18 10 5 18 18 17 27 25 25 18 23 3 MIN. QFF PRESSURE IN HPA 1009.5 998.9 997.6 1007.7 1007.3 998.9 1001.5 999.4 1005.5 1008.3 1017.0 1001.7 997.6 DAY 4 20 27 28 9 7 21 21 11 9 6 16 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1025.2 1020.3 1018.5 1019.7 1017.7 1015.7 1012.2 1015.8 1019.4 1022.6 1028.8 1021.7 1019.8 MAX. QFE PRESSURE IN HPA 1038.1 1034.9 1028.7 1032.0 1026.9 1025.9 1019.0 1024.8 1027.4 1030.3 1036.3 1033.9 1038.1 DAY 17 10 5 18 18 17 6 25 25 18 22 3 MIN. QFE PRESSURE IN HPA 1012.4 1000.8 1000.5 1009.4 1010.9 1005.6 1004.2 1002.3 1009.2 1011.1 1019.5 1006.1 1000.5 DAY 3 17 27 28 10 7 21 21 11 9 6 16 MEAN QNH PRESSURE IN HPA 1021.8 1016.9 1015.1 1016.2 1014.2 1012.3 1008.8 1012.3 1015.9 1019.1 1025.3 1018.2 1016.3 MAX. QNH PRESSURE IN HPA 1034.6 1031.4 1025.2 1028.5 1023.4 1022.4 1015.5 1021.3 1023.9 1026.8 1032.8 1030.4 1034.6 DAY 17 10 5 18 18 17 6 25 25 18 22 3 MIN. QNH PRESSURE IN HPA 1009.0 997.4 997.1 1006.0 1007.5 1002.2 1000.8 998.9 1005.8 1007.7 1016.0 1002.7 997.1 DAY 3 17 27 28 10 7 21 21 11 9 6 16 MEAN QFF PRESSURE IN HPA 1022.0 1017.1 1015.3 1016.5 1014.6 1012.7 1009.2 1012.8 1016.3 1019.5 1025.6 1018.5 1016.7 MAX. QFF PRESSURE IN HPA 1034.8 1031.6 1025.5 1028.8 1023.8 1022.7 1016.0 1021.7 1024.3 1027.1 1033.1 1030.7 1034.8 DAY 17 10 5 18 18 17 6 25 25 18 22 3 MIN. QFF PRESSURE IN HPA 1009.2 997.7 997.4 1006.3 1007.8 1002.6 1001.3 999.4 1006.2 1008.1 1016.4 1003.0 997.4 DAY 3 17 27 28 10 7 21 21 11 9 6 16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 10.0 9.6 9.1 13.6 18.5 23.1 26.0 25.0 23.0 19.0 12.5 7.2 16.4 MINIMUN AIR TEMPERATURE (C) 6.9 6.6 5.3 11.3 15.7 19.7 22.3 21.5 19.4 16.2 9.2 3.4 13.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 10 28 23 9 0 0 0 70 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 3 3 DAYS WITH FREEZING MIN.<= 0 0 0 2 0 0 0 0 0 0 0 0 7 9 TEMPERATURE RECORDS LOWEST(C) 4.0 3.0 -1.0 8.0 12.0 16.0 19.0 19.0 16.0 13.0 4.0 -4.0 -4.0 DAY 9 9 8 1 14 13 1 4 23 26 28 27 MAXIMUM AIR TEMPERATURE (C) 13.7 12.8 13.5 16.4 21.8 26.9 29.6 28.9 27.0 22.2 16.7 11.3 20.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 3 17 15 0 0 0 0 35 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 27.0 27.0 25.0 22.0 28.0 30.0 33.0 32.0 29.0 26.0 21.0 21.0 33.0 DAY 16 23 25 24 30 27 20 13 3 7 13 8 DIF. BETWEEN (MAX.-MIN.) (C) 6.8 6.2 8.2 5.1 6.1 7.2 7.3 7.4 7.6 6.0 7.5 7.9 7.0 MEAN DAILY TEMP. (MDT) (C) 10.3 9.7 9.4 13.9 18.8 23.3 26.0 25.2 23.2 19.2 12.9 7.4 16.6 COOLING DEG. DAYS(BASE 21 0C) 1.0 0.0 0.0 0.0 8.0 69.0 154.0 129.5 71.5 3.0 0.0 0.0 436.0 HEATING DEG. DAYS(BASE 18 0C) 243.5 232.0 267.0 124.0 22.0 0.0 0.0 0.0 0.5 12.5 151.5 330.0 1383.0 DEWPOINT (MEAN C) 7.3 7.3 6.6 12.2 16.2 20.2 22.1 21.4 20.0 17.1 10.9 5.3 13.9 MIXING RATIO (G/KG) 6.34 6.33 6.12 8.89 11.65 14.87 16.89 16.12 14.71 12.19 8.11 5.66 10.66 VAPOUR PRESSURE (HPA) 10.30 10.29 9.91 14.31 18.63 23.70 26.74 25.61 23.51 19.63 13.16 9.21 17.08 SATURATION DEF. (HPA) 2.33 2.01 1.86 1.39 2.92 4.83 7.22 6.53 4.92 2.55 1.62 1.35 3.29 RELATIVE HUMIDITY (MEAN %) 87 88 86 92 87 84 80 81 84 89 90 89 86 RELATIVE HUMIDITY (MAX. %) 95 95 96 98 96 95 92 93 95 97 98 98 96 RELATIVE HUMIDITY (MIN. %) 76 78 71 83 76 73 68 69 72 80 78 77 75 RELATIVE HUMIDITY (MEAN% 03UTC) 89 91 90 96 94 92 90 90 93 95 96 93 92 RELATIVE HUMIDITY (MEAN% 09UTC) 81 82 80 86 79 75 71 71 74 83 82 83 79 RELATIVE HUMIDITY (MEAN% 15UTC) 85 87 85 90 84 80 73 76 80 87 89 87 84 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 97.3 106.3 133.5 35.7 116.3 73.0 86.2 140.1 134.5 321.8 359.6 393.6 1997.9 DAYS WITH PRECIPITATION >=10 3 4 4 0 4 3 3 5 2 8 9 11 56 DAYS WITH PRECIPITATION >= 5 10 5 5 2 5 5 5 8 3 9 9 11 77 DAYS WITH PRECIPITATION >= 1 14 8 11 10 12 6 5 10 6 16 13 12 123 DAYS WITH PRECIPITATION 15 12 15 19 15 7 6 13 9 19 14 13 157 GREATEST DAILY PRECIPITATION 21.0 32.0 44.0 9.0 47.0 26.0 41.0 43.0 62.0 80.0 63.0 95.0 95.0 DAY 28 28 6 16 3 12 8 28 22 2 12 2 DAY WITH THUNDER STORM 0 0 0 3 3 4 0 5 2 1 2 0 20 DAYS WITH SNOW OR SLEET 0 0 2 0 0 0 0 0 0 0 0 2 4 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 1 1 WIND DIRECTION (PREVAILING) 270 360 360 360 90 45 360 360 225 270 270 360 360 PREVAILING WIND SPEED(KNOTS) 3.5 4.7 7.0 2.8 4.1 3.9 3.4 6.0 1.8 3.7 3.6 13.9 6.4 PREVAILING WIND PERCENT 23.0 21.1 25.9 23.4 21.1 22.2 23.1 21.1 18.8 23.9 21.3 24.3 19.8 CALMS PERCENT OF WIND 16.5 17.5 17.4 10.9 10.9 12.1 13.4 12.6 17.2 14.2 25.9 19.4 15.6 NO. OF WIND OBSERVATION 248 223 247 239 247 239 247 247 239 247 239 247 2909 VECTOR WIND DIRECTION (MEAN) 302 322 5 29 41 40 334 357 354 328 331 334 346 VECTOR WIND MAGNITUDE(KNOTS) 2.2 1.5 2.0 1.3 1.3 1.9 1.2 1.5 0.7 3.0 1.7 4.3 1.6 WIND STEADINESES (MEAN %) 56.4 48.4 58.8 52.0 50.0 54.3 40.0 46.9 25.0 65.2 48.6 72.9 45.7 WIND SPEED (MEAN KNOTS) 3.9 3.1 3.4 2.5 2.6 3.5 3.0 3.2 2.8 4.6 3.5 5.9 3.5 FASTEST WIND DIRECTION 310 340 360 90 90 360 340 360 310 360 340 340 360 FASTEST WIND SPEED (KNOTS) 29 24 44 19 17 37 15 37 34 30 35 41 44 DAY 3 28 5 28 23 16 14 28 22 23 26 2 DAYS WITH SKY CLEAR (0-2)/8 2 2 5 2 5 14 12 11 11 5 12 6 87 DAYS WITH P.CLOUDY (3-6)/8 11 9 9 5 14 8 10 9 11 6 7 10 109 DAYS WITH CLOUDY (7-8)/8 18 17 17 23 12 8 9 11 8 20 11 15 169 DAYS WITH VISIBILITY =< 2 KM 7 4 9 4 3 2 2 4 4 6 7 11 63 DURATION OF SUNSHINE HOURS 79.9 76.9 130.9 80.5 173.4 206.7 222.5 197.1 198.1 112.8 153.0 92.6 1724.4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1021.5 1021.9 1018.9 1015.9 1014.2 1015.1 1012.1 1014.1 1018.3 1022.2 1023.9 1023.7 1018.5 MAX. QFE PRESSURE IN HPA 1032.1 1037.7 1032.5 1027.1 1023.3 1024.2 1017.6 1020.0 1032.2 1032.9 1035.5 1042.6 1042.6 DAY-HOUR 5- 6 7- 6 7- 9 2- 9 13-18 12-18 29- 6 5- 6 24- 6 17-21 26-12 26- 6 MIN. QFE PRESSURE IN HPA 1012.3 1004.4 1003.2 1003.3 1005.5 1004.8 1005.8 1006.1 1009.7 1011.7 1013.0 1006.4 1003.2 DAY-HOUR 14-15 22-21 5- 3 29- 0 29- 3 19-15 23-15 12-15 3-12 20-21 16- 0 10- 3 MEAN QNH PRESSURE IN HPA 1018.0 1018.4 1015.5 1012.5 1010.7 1011.6 1008.6 1010.6 1014.8 1018.7 1020.5 1020.3 1015.0 MAX. QNH PRESSURE IN HPA 1028.6 1034.2 1029.0 1023.6 1019.8 1020.7 1014.1 1016.5 1028.7 1029.4 1032.0 1039.1 1039.1 DAY-HOUR 5- 6 7- 6 7- 9 2- 9 13-18 12-18 29- 6 5- 6 24- 6 17-21 26-12 26- 6 MIN. QNH PRESSURE IN HPA 1008.9 1001.0 999.8 999.9 1002.1 1001.4 1002.4 1002.7 1006.3 1008.3 1009.6 1003.0 999.8 DAY-HOUR 14-15 22-21 5- 3 29- 0 29- 3 19-15 23-15 12-15 3-12 20-21 16- 0 10- 3 MEAN QFF PRESSURE IN HPA 1018.3 1018.7 1015.7 1012.8 1011.1 1012.1 1009.1 1011.1 1015.2 1019.1 1020.8 1020.5 1015.4 MAX. QFF PRESSURE IN HPA 1028.8 1034.4 1029.2 1023.9 1020.2 1021.1 1014.6 1016.9 1029.1 1029.7 1032.2 1039.2 1039.2 DAY-HOUR 5- 6 7- 6 7- 9 2- 9 13-18 12-18 29- 6 5- 9 24- 6 17-21 26-12 26- 6 MIN. QFF PRESSURE IN HPA 1009.2 1001.4 1000.0 1000.2 1002.5 1001.8 1002.8 1003.1 1006.7 1008.6 1009.9 1003.3 1000.0 DAY-HOUR 14-15 22-21 5- 3 29- 0 29- 3 19-15 23-15 12-15 3-15 20-21 16- 3 10- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1021.7 1021.7 1018.9 1015.8 1013.9 1015.0 1011.9 1014.0 1018.3 1022.0 1023.7 1023.7 1018.4 MAX. QFE PRESSURE IN HPA 1031.3 1037.0 1031.1 1024.9 1022.6 1022.4 1016.8 1019.5 1031.8 1032.8 1032.3 1041.5 1041.5 DAY 5 7 7 2 14 13 29 5 24 18 29 26 MIN. QFE PRESSURE IN HPA 1013.0 1004.4 1005.3 1003.3 1006.1 1006.6 1007.0 1006.6 1010.2 1013.6 1013.0 1008.2 1003.3 DAY 15 23 16 29 29 19 4 12 3 21 16 10 MEAN QNH PRESSURE IN HPA 1018.2 1018.2 1015.5 1012.3 1010.5 1011.5 1008.5 1010.6 1014.8 1018.5 1020.2 1020.2 1014.9 MAX. QNH PRESSURE IN HPA 1027.8 1033.5 1027.6 1021.4 1019.1 1018.9 1013.3 1016.0 1028.3 1029.3 1028.8 1038.0 1038.0 DAY 5 7 7 2 14 13 29 5 24 18 29 26 MIN. QNH PRESSURE IN HPA 1009.6 1001.0 1001.9 999.9 1002.7 1003.2 1003.6 1003.2 1006.8 1010.2 1009.6 1004.8 999.9 DAY 15 23 16 29 29 19 4 12 3 21 16 10 MEAN QFF PRESSURE IN HPA 1018.5 1018.5 1015.7 1012.6 1010.8 1011.9 1008.9 1011.0 1015.2 1018.9 1020.5 1020.5 1015.3 MAX. QFF PRESSURE IN HPA 1028.0 1033.7 1027.8 1021.7 1019.5 1019.3 1013.8 1016.5 1028.7 1029.6 1029.0 1038.1 1038.1 DAY 5 7 7 2 14 13 29 5 24 18 29 26 MIN. QFF PRESSURE IN HPA 1009.9 1001.4 1002.1 1000.2 1003.1 1003.6 1004.0 1003.6 1007.2 1010.5 1009.9 1005.1 1000.2 DAY 15 23 16 29 29 19 4 12 3 21 16 10 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1021.5 1021.8 1018.9 1015.9 1014.2 1015.5 1012.4 1014.4 1018.5 1022.3 1023.8 1023.5 1018.6 MAX. QFE PRESSURE IN HPA 1031.6 1037.0 1031.4 1025.4 1022.9 1022.5 1017.5 1019.6 1031.5 1032.7 1031.9 1041.1 1041.1 DAY 5 7 7 2 13 13 29 5 24 18 2 26 MIN. QFE PRESSURE IN HPA 1012.9 1004.8 1003.2 1004.0 1005.5 1006.2 1007.4 1006.6 1010.2 1016.2 1013.0 1006.4 1003.2 DAY 15 23 5 29 29 19 2 12 3 21 16 10 MEAN QNH PRESSURE IN HPA 1018.0 1018.3 1015.4 1012.5 1010.7 1012.0 1008.9 1010.9 1015.1 1018.8 1020.3 1020.0 1015.1 MAX. QNH PRESSURE IN HPA 1028.1 1033.5 1027.9 1021.9 1019.4 1019.0 1014.0 1016.1 1028.0 1029.2 1028.4 1037.6 1037.6 DAY 5 7 7 2 13 13 29 5 24 18 2 26 MIN. QNH PRESSURE IN HPA 1009.5 1001.4 999.8 1000.6 1002.1 1002.8 1004.0 1003.2 1006.8 1012.7 1009.6 1003.0 999.8 DAY 15 23 5 29 29 19 2 12 3 21 16 10 MEAN QFF PRESSURE IN HPA 1018.3 1018.6 1015.7 1012.8 1011.1 1012.4 1009.4 1011.4 1015.5 1019.2 1020.6 1020.2 1015.4 MAX. QFF PRESSURE IN HPA 1028.3 1033.7 1028.1 1022.2 1019.7 1019.4 1014.5 1016.5 1028.3 1029.5 1028.7 1037.7 1037.7 DAY 5 7 7 2 13 13 29 5 24 18 2 26 MIN. QFF PRESSURE IN HPA 1009.8 1001.8 1000.0 1000.9 1002.5 1003.2 1004.4 1003.6 1007.2 1013.1 1009.9 1003.3 1000.0 DAY 26 23 5 29 29 19 2 12 3 21 16 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.3 1022.5 1019.4 1016.5 1014.6 1015.7 1012.6 1014.7 1018.8 1022.9 1024.8 1024.2 1019.1 MAX. QFE PRESSURE IN HPA 1032.1 1037.7 1032.3 1026.9 1023.2 1023.0 1017.6 1020.0 1032.2 1032.7 1034.5 1042.6 1042.6 DAY 5 7 7 2 13 12 29 5 24 18 26 26 MIN. QFE PRESSURE IN HPA 1013.2 1005.4 1003.3 1005.2 1006.8 1006.5 1007.4 1006.6 1010.5 1017.4 1017.4 1008.8 1003.3 DAY 26 23 5 29 29 19 2 12 3 31 15 10 MEAN QNH PRESSURE IN HPA 1018.8 1019.0 1015.9 1013.1 1011.1 1012.2 1009.1 1011.2 1015.4 1019.5 1021.4 1020.7 1015.6 MAX. QNH PRESSURE IN HPA 1028.6 1034.2 1028.8 1023.4 1019.7 1019.5 1014.1 1016.5 1028.7 1029.2 1031.0 1039.1 1039.1 DAY 5 7 7 2 13 12 29 5 24 18 26 26 MIN. QNH PRESSURE IN HPA 1009.8 1002.0 999.9 1001.8 1003.4 1003.1 1004.0 1003.2 1007.1 1013.9 1013.9 1005.4 999.9 DAY 26 23 5 29 29 19 2 12 3 31 15 10 MEAN QFF PRESSURE IN HPA 1019.0 1019.2 1016.1 1013.4 1011.5 1012.6 1009.6 1011.7 1015.8 1019.8 1021.6 1021.0 1015.9 MAX. QFF PRESSURE IN HPA 1028.8 1034.4 1029.0 1023.7 1020.1 1019.9 1014.6 1016.9 1029.1 1029.5 1031.2 1039.2 1039.2 DAY 5 7 7 2 13 12 29 5 24 18 26 26 MIN. QFF PRESSURE IN HPA 1010.0 1002.4 1000.1 1002.1 1003.8 1003.5 1004.4 1003.6 1007.5 1014.3 1014.2 1005.6 1000.1 DAY 26 23 5 29 29 19 2 12 3 31 22 10 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1021.8 1022.2 1019.2 1016.3 1014.5 1015.5 1012.5 1014.4 1018.5 1022.6 1024.4 1023.7 1018.8 MAX. QFE PRESSURE IN HPA 1031.7 1037.5 1032.5 1027.1 1023.2 1023.9 1016.8 1020.0 1031.2 1031.4 1034.6 1042.1 1042.1 DAY 5 7 7 2 13 12 29 5 24 18 26 25 MIN. QFE PRESSURE IN HPA 1013.2 1004.9 1003.5 1006.1 1007.5 1006.0 1007.4 1006.5 1010.3 1016.6 1016.2 1009.2 1003.5 DAY 26 23 5 29 29 19 2 12 3 31 24 10 MEAN QNH PRESSURE IN HPA 1018.3 1018.7 1015.7 1012.8 1011.0 1012.0 1009.0 1011.0 1015.1 1019.1 1020.9 1020.2 1015.3 MAX. QNH PRESSURE IN HPA 1028.2 1034.0 1029.0 1023.6 1019.7 1020.4 1013.3 1016.5 1027.7 1027.9 1031.1 1038.6 1038.6 DAY 5 7 7 2 13 12 29 5 24 18 26 25 MIN. QNH PRESSURE IN HPA 1009.8 1001.5 1000.1 1002.7 1004.1 1002.6 1004.0 1003.1 1006.9 1013.1 1012.7 1005.8 1000.1 DAY 26 23 5 29 29 19 2 12 3 31 24 10 MEAN QFF PRESSURE IN HPA 1018.8 1019.0 1015.6 1012.9 1011.4 1012.6 1009.6 1011.4 1015.6 1019.5 1021.3 1020.4 1015.7 MAX. QFF PRESSURE IN HPA 1028.4 1034.2 1029.2 1023.9 1020.1 1020.8 1013.8 1016.9 1028.1 1028.2 1031.3 1038.7 1038.7 DAY 5 7 7 2 13 12 29 5 24 18 26 25 MIN. QFF PRESSURE IN HPA 1010.0 1001.9 1000.4 1003.0 1004.5 1003.0 1004.4 1003.5 1007.3 1013.5 1013.0 1006.0 1000.4 DAY 26 23 5 29 29 19 2 12 3 31 24 10 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1020.7 1021.3 1018.3 1015.7 1013.9 1014.8 1011.9 1013.8 1017.9 1021.9 1023.6 1023.1 1018.1 MAX. QFE PRESSURE IN HPA 1031.0 1036.3 1032.0 1026.7 1023.2 1024.0 1016.3 1019.4 1029.8 1029.4 1035.5 1041.8 1041.8 DAY 5 7 7 2 13 12 29 5 24 18 26 25 MIN. QFE PRESSURE IN HPA 1012.5 1004.7 1006.2 1007.5 1005.7 1005.2 1007.1 1006.5 1009.7 1015.6 1015.4 1010.4 1004.7 DAY 14 23 5 29 27 19 23 12 3 20 22 10 MEAN QNH PRESSURE IN HPA 1017.3 1017.8 1014.8 1012.3 1010.4 1011.3 1008.5 1010.3 1014.4 1018.4 1020.1 1019.6 1014.6 MAX. QNH PRESSURE IN HPA 1027.5 1032.8 1028.5 1023.2 1019.7 1020.5 1012.8 1015.9 1026.3 1025.9 1032.0 1038.3 1038.3 DAY 5 7 7 2 13 12 29 5 24 18 26 25 MIN. QNH PRESSURE IN HPA 1009.1 1001.3 1002.8 1004.1 1002.3 1001.8 1003.7 1003.1 1006.3 1012.2 1012.0 1007.0 1001.3 DAY 14 23 5 29 27 19 23 12 3 20 22 10 MEAN QFF PRESSURE IN HPA 1017.5 1018.1 1015.1 1012.6 1010.8 1011.7 1008.9 1010.8 1014.8 1018.8 1020.4 1019.8 1014.9 MAX. QFF PRESSURE IN HPA 1027.7 1033.0 1028.7 1023.5 1020.1 1020.9 1013.3 1016.4 1026.7 1026.2 1032.2 1038.4 1038.4 DAY 5 7 7 2 13 12 29 5 24 18 26 25 MIN. QFF PRESSURE IN HPA 1009.3 1001.7 1003.0 1004.4 1002.7 1002.2 1004.1 1003.5 1006.7 1012.5 1012.3 1007.3 1001.7 DAY 14 23 5 29 27 19 23 12 3 20 22 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1020.9 1021.8 1018.7 1015.6 1013.8 1014.3 1011.5 1013.5 1017.7 1021.8 1023.6 1023.7 1018.1 MAX. QFE PRESSURE IN HPA 1030.9 1035.8 1031.4 1026.5 1023.2 1024.0 1016.1 1018.9 1030.1 1029.4 1035.5 1042.5 1042.5 DAY 5 6 7 2 13 12 29 5 23 17 26 25 MIN. QFE PRESSURE IN HPA 1012.3 1005.7 1007.1 1007.9 1006.3 1004.8 1005.8 1006.1 1009.7 1014.1 1015.1 1011.7 1004.8 DAY 14 23 30 29 28 19 23 12 3 20 22 8 MEAN QNH PRESSURE IN HPA 1017.5 1018.3 1015.2 1012.2 1010.4 1010.9 1008.1 1010.0 1014.3 1018.3 1020.2 1020.2 1014.6 MAX. QNH PRESSURE IN HPA 1027.4 1032.3 1027.9 1023.0 1019.7 1020.5 1012.6 1015.4 1026.6 1025.9 1032.0 1039.0 1039.0 DAY 5 6 7 2 13 12 29 5 23 17 26 25 MIN. QNH PRESSURE IN HPA 1008.9 1002.3 1003.7 1004.5 1002.9 1001.4 1002.4 1002.7 1006.3 1010.7 1011.7 1008.3 1001.4 DAY 14 23 30 29 28 19 23 12 3 20 22 8 MEAN QFF PRESSURE IN HPA 1017.7 1018.5 1015.5 1012.5 1010.7 1011.3 1008.5 1010.4 1014.7 1018.7 1020.4 1020.4 1014.9 MAX. QFF PRESSURE IN HPA 1027.6 1032.5 1028.1 1023.3 1020.0 1020.9 1013.1 1015.8 1027.0 1026.3 1032.2 1039.1 1039.1 DAY 5 6 7 2 13 12 29 5 23 17 26 25 MIN. QFF PRESSURE IN HPA 1009.2 1002.6 1003.9 1004.8 1003.3 1001.8 1002.8 1003.1 1006.7 1011.0 1012.0 1008.6 1001.8 DAY 14 23 30 29 28 19 23 12 3 20 22 8 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1021.4 1022.4 1019.3 1016.0 1014.2 1014.9 1012.0 1014.1 1018.3 1022.2 1023.9 1024.2 1018.6 MAX. QFE PRESSURE IN HPA 1030.8 1036.6 1030.4 1025.9 1023.3 1024.2 1016.8 1019.3 1031.7 1032.3 1035.5 1042.2 1042.2 DAY 18 6 7 2 13 12 28 5 23 17 26 25 MIN. QFE PRESSURE IN HPA 1012.4 1005.6 1006.7 1007.6 1006.7 1005.1 1006.0 1006.3 1010.5 1012.7 1015.4 1010.1 1005.1 DAY 14 22 15 28 28 19 23 12 2 20 15 9 MEAN QNH PRESSURE IN HPA 1017.9 1018.9 1015.9 1012.5 1010.8 1011.5 1008.6 1010.7 1014.8 1018.7 1020.4 1020.7 1015.1 MAX. QNH PRESSURE IN HPA 1027.3 1033.1 1026.9 1022.4 1019.8 1020.7 1013.3 1015.8 1028.2 1028.8 1032.0 1038.7 1038.7 DAY 18 6 7 2 13 12 28 5 23 17 26 25 MIN. QNH PRESSURE IN HPA 1009.0 1002.2 1003.3 1004.2 1003.3 1001.7 1002.6 1002.9 1007.1 1009.3 1012.0 1006.7 1001.7 DAY 14 22 15 28 28 19 23 12 2 20 15 9 MEAN QFF PRESSURE IN HPA 1018.1 1019.2 1016.1 1012.8 1011.1 1011.9 1009.0 1011.1 1015.2 1019.0 1020.7 1020.9 1015.4 MAX. QFF PRESSURE IN HPA 1027.5 1033.3 1027.1 1022.7 1020.2 1021.1 1013.8 1016.2 1028.5 1029.1 1032.2 1038.8 1038.8 DAY 18 6 7 2 13 12 28 5 23 17 26 25 MIN. QFF PRESSURE IN HPA 1009.3 1002.5 1003.5 1004.5 1003.7 1002.1 1003.1 1003.3 1007.5 1009.6 1012.3 1006.9 1002.1 DAY 14 22 15 28 28 19 23 12 2 20 15 9 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1021.5 1021.9 1019.0 1015.9 1014.4 1015.2 1012.1 1014.0 1018.4 1022.1 1023.9 1024.1 1018.5 MAX. QFE PRESSURE IN HPA 1030.8 1036.8 1030.7 1025.2 1022.5 1023.4 1016.8 1019.6 1032.0 1032.9 1034.2 1041.8 1041.8 DAY 4 6 6 2 8 12 28 5 23 17 26 25 MIN. QFE PRESSURE IN HPA 1012.8 1004.4 1006.0 1005.2 1006.9 1008.1 1006.8 1006.6 1010.5 1011.7 1014.3 1009.0 1004.4 DAY 14 22 15 28 28 19 23 12 2 20 15 9 MEAN QNH PRESSURE IN HPA 1018.0 1018.4 1015.6 1012.5 1010.9 1011.8 1008.6 1010.6 1015.0 1018.6 1020.4 1020.6 1015.1 MAX. QNH PRESSURE IN HPA 1027.3 1033.3 1027.2 1021.7 1019.0 1019.9 1013.3 1016.1 1028.5 1029.4 1030.7 1038.3 1038.3 DAY 4 6 6 2 8 12 28 5 23 17 26 25 MIN. QNH PRESSURE IN HPA 1009.4 1001.0 1002.6 1001.8 1003.5 1004.7 1003.4 1003.2 1007.1 1008.3 1010.9 1005.6 1001.0 DAY 14 22 15 28 28 19 23 12 2 20 15 9 MEAN QFF PRESSURE IN HPA 1018.3 1018.7 1015.8 1012.8 1011.3 1012.2 1009.1 1011.0 1015.4 1019.0 1020.7 1020.8 1015.4 MAX. QFF PRESSURE IN HPA 1027.5 1033.5 1027.4 1022.0 1019.4 1020.3 1013.8 1016.5 1028.8 1029.7 1030.9 1038.4 1038.4 DAY 4 6 6 2 8 12 28 5 23 17 26 25 MIN. QFF PRESSURE IN HPA 1009.7 1001.4 1002.8 1002.1 1003.9 1005.1 1003.9 1003.6 1007.5 1008.6 1011.2 1005.8 1001.4 DAY 14 22 15 28 28 19 23 12 2 20 15 9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.7 6.6 8.7 11.8 19.1 24.7 25.5 24.4 21.7 17.5 14.2 8.0 15.4 MINIMUN AIR TEMPERATURE (C) -1.3 3.6 6.9 8.8 15.8 21.0 21.5 20.7 18.5 14.3 10.2 5.0 12.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 19 25 17 3 0 0 0 64 DAYS WITH MINIMUM TEMP. <=-4 6 0 0 0 0 0 0 0 0 0 0 0 6 DAYS WITH FREEZING MIN.<= 0 23 2 0 0 0 0 0 0 0 0 0 4 29 TEMPERATURE RECORDS LOWEST(C) -7.0 -1.0 3.0 4.0 9.0 18.0 20.0 19.0 15.0 9.0 2.0 -1.0 -7.0 DAY 20 1 8 16 2 23 7 20 17 29 30 26 MAXIMUM AIR TEMPERATURE (C) 7.8 9.6 10.6 15.2 22.7 28.7 29.6 28.7 25.4 21.7 18.5 11.6 19.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 11 15 13 0 0 0 0 39 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.0 14.0 15.0 21.0 28.0 32.0 32.0 32.0 29.0 26.0 29.0 16.0 32.0 DAY 16 2 26 24 31 10 3 4 2 1 21 4 DIF. BETWEEN (MAX.-MIN.) (C) 9.1 6.0 3.7 6.4 6.9 7.7 8.1 8.0 6.9 7.4 8.3 6.6 7.1 MEAN DAILY TEMP. (MDT) (C) 3.3 6.6 8.7 12.0 19.2 24.8 25.6 24.7 21.9 18.0 14.4 8.3 15.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 8.0 115.5 142.5 114.0 38.0 1.5 0.0 0.0 419.5 HEATING DEG. DAYS(BASE 18 0C) 457.0 330.0 287.5 179.5 21.0 0.0 0.0 0.0 1.0 28.0 114.5 301.5 1720.0 DEWPOINT (MEAN C) 0.6 5.0 7.5 9.7 16.0 20.5 20.7 20.8 19.5 14.7 11.2 5.8 12.6 MIXING RATIO (G/KG) 3.95 5.37 6.41 7.56 11.47 15.21 15.45 15.51 14.22 10.44 8.46 5.75 9.98 VAPOUR PRESSURE (HPA) 6.48 8.75 10.41 12.22 18.40 24.17 24.54 24.62 22.76 16.91 13.69 9.41 16.03 SATURATION DEF. (HPA) 1.16 1.05 0.88 1.90 4.02 7.29 8.38 6.24 3.52 3.47 2.88 1.59 3.53 RELATIVE HUMIDITY (MEAN %) 87 90 92 88 83 78 76 82 88 84 85 86 85 RELATIVE HUMIDITY (MAX. %) 96 96 97 96 94 90 89 94 97 96 96 94 95 RELATIVE HUMIDITY (MIN. %) 73 82 88 78 71 65 63 68 76 71 70 75 73 RELATIVE HUMIDITY (MEAN% 03UTC) 93 94 95 94 93 88 85 93 95 93 88 90 92 RELATIVE HUMIDITY (MEAN% 09UTC) 78 85 90 81 75 68 67 73 81 73 77 80 77 RELATIVE HUMIDITY (MEAN% 15UTC) 85 89 91 83 79 73 68 74 83 80 84 84 81 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 243.6 93.4 84.3 231.0 9.4 40.2 7.9 112.6 84.5 126.2 72.5 297.6 1403.2 DAYS WITH PRECIPITATION >=10 7 3 3 8 0 2 0 5 2 2 3 10 45 DAYS WITH PRECIPITATION >= 5 9 5 5 12 1 3 0 7 6 5 3 13 69 DAYS WITH PRECIPITATION >= 1 12 11 13 13 1 4 3 10 11 13 5 15 111 DAYS WITH PRECIPITATION 14 12 19 17 3 6 8 11 11 13 6 17 137 GREATEST DAILY PRECIPITATION 104.0 29.0 26.0 48.0 9.0 18.0 4.0 28.0 26.0 45.0 31.0 52.0 104.0 DAY 4 26 8 21 1 22 21 24 13 28 10 25 DAY WITH THUNDER STORM 0 0 4 4 0 5 0 2 0 0 0 0 15 DAYS WITH SNOW OR SLEET 7 0 0 0 0 0 0 0 0 0 0 1 8 DAYS WITH DUST 1 0 1 0 0 0 0 0 0 0 0 0 2 WIND DIRECTION (PREVAILING) 270 270 360 360 90 45 225 270 270 225 225 270 270 PREVAILING WIND SPEED(KNOTS) 2.8 2.9 4.1 4.1 5.0 3.7 1.8 3.1 3.5 2.4 2.7 2.0 2.9 PREVAILING WIND PERCENT 25.1 23.4 27.5 22.6 26.7 19.2 18.6 21.5 21.3 19.4 18.8 25.1 17.4 CALMS PERCENT OF WIND 20.6 20.3 22.7 20.9 15.8 10.0 8.5 13.4 15.9 11.3 15.1 19.0 16.1 NO. OF WIND OBSERVATION 247 231 247 239 247 239 247 247 239 247 239 247 2916 VECTOR WIND DIRECTION (MEAN) 309 318 359 11 57 17 358 356 339 337 308 316 342 VECTOR WIND MAGNITUDE(KNOTS) 2.1 2.3 1.6 1.3 2.0 1.0 1.0 0.5 1.1 1.5 1.2 2.2 1.2 WIND STEADINESES (MEAN %) 61.8 71.9 61.5 50.0 60.6 32.3 34.5 18.5 35.5 37.5 30.8 73.3 38.7 WIND SPEED (MEAN KNOTS) 3.4 3.2 2.6 2.6 3.3 3.1 2.9 2.7 3.1 4.0 3.9 3.0 3.1 FASTEST WIND DIRECTION 340 340 340 310 90 20 360 50 50 260 200 340 260 FASTEST WIND SPEED (KNOTS) 28 27 19 19 22 18 20 20 26 38 29 34 38 DAY 28 12 7 20 13 16 5 5 15 3 26 17 DAYS WITH SKY CLEAR (0-2)/8 8 2 0 6 16 10 15 8 12 13 9 8 107 DAYS WITH P.CLOUDY (3-6)/8 13 8 4 5 8 16 4 10 7 8 12 4 99 DAYS WITH CLOUDY (7-8)/8 10 19 27 19 7 4 12 13 11 10 9 19 160 DAYS WITH VISIBILITY =< 2 KM 9 4 3 6 3 1 1 2 3 4 8 4 48 DURATION OF SUNSHINE HOURS 138.6 79.8 35.1 115.9 256.6 239.1 196.2 170.0 152.6 161.6 153.6 94.1 1793.2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1026.9 1022.3 1020.5 1018.1 1016.8 1012.8 1012.5 1012.4 1019.0 1025.5 1020.7 1028.4 1019.7 MAX. QFE PRESSURE IN HPA 1037.8 1034.7 1031.9 1025.9 1021.7 1018.8 1021.1 1020.7 1030.0 1035.8 1038.2 1039.8 1039.8 DAY-HOUR 29-18 27- 6 8- 0 24- 0 1-18 1- 3 22-18 20-18 16- 6 29- 6 10-21 25-18 MIN. QFE PRESSURE IN HPA 1012.7 1010.6 1009.3 998.7 1005.0 1004.6 1004.5 1001.7 1010.3 1011.0 998.5 1013.5 998.5 DAY-HOUR 16- 3 4- 0 3- 3 6- 9 11- 9 15-12 4-21 13-12 11- 0 2-15 27- 3 23-12 MEAN QNH PRESSURE IN HPA 1023.4 1018.8 1017.1 1014.7 1013.3 1009.4 1009.1 1009.0 1015.5 1022.0 1017.2 1024.9 1016.2 MAX. QNH PRESSURE IN HPA 1034.3 1031.2 1028.4 1022.4 1018.2 1015.3 1017.6 1017.2 1026.5 1032.3 1034.7 1036.3 1036.3 DAY-HOUR 29-18 27- 6 8- 0 24- 0 1-18 1- 3 22-18 20-18 16- 6 29- 6 10-21 25-18 MIN. QNH PRESSURE IN HPA 1009.3 1007.2 1005.9 995.3 1001.6 1001.2 1001.1 998.3 1006.9 1007.6 995.1 1010.1 995.1 DAY-HOUR 16- 3 4- 0 3- 3 6- 9 11- 9 15-12 4-21 13-12 11- 0 2-15 27- 3 23-12 MEAN QFF PRESSURE IN HPA 1023.5 1019.0 1017.3 1014.9 1013.7 1009.8 1009.5 1009.4 1015.9 1022.4 1017.5 1025.1 1016.5 MAX. QFF PRESSURE IN HPA 1034.4 1031.4 1028.6 1022.7 1018.5 1015.8 1018.0 1017.6 1026.9 1032.5 1035.0 1036.4 1036.4 DAY-HOUR 29-18 27- 6 8- 3 24- 0 1-18 1- 6 22-18 20-18 16- 6 29- 6 10-21 25-18 MIN. QFF PRESSURE IN HPA 1009.5 1007.4 1006.1 995.6 1002.0 1001.6 1001.5 998.7 1007.3 1007.9 995.4 1010.3 995.4 DAY-HOUR 16- 3 4- 0 3- 3 6- 9 11- 9 15-12 4-21 13-15 11- 0 2-15 27- 3 23-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1026.6 1022.1 1020.1 1017.9 1016.4 1012.8 1012.4 1012.4 1018.8 1025.0 1020.4 1028.3 1019.4 MAX. QFE PRESSURE IN HPA 1037.5 1033.1 1031.9 1025.9 1020.9 1018.2 1020.4 1019.7 1029.0 1034.9 1037.2 1038.9 1038.9 DAY 30 27 8 24 2 1 23 21 17 29 11 26 MIN. QFE PRESSURE IN HPA 1014.7 1010.6 1010.4 1003.9 1010.0 1005.9 1005.4 1003.6 1010.3 1011.3 999.0 1015.3 999.0 DAY 18 4 3 6 12 15 5 13 11 5 27 24 MEAN QNH PRESSURE IN HPA 1023.1 1018.6 1016.6 1014.4 1012.9 1009.3 1009.0 1008.9 1015.3 1021.5 1017.0 1024.9 1016.0 MAX. QNH PRESSURE IN HPA 1034.0 1029.6 1028.4 1022.4 1017.4 1014.7 1016.9 1016.2 1025.5 1031.4 1033.7 1035.4 1035.4 DAY 30 27 8 24 2 1 23 21 17 29 11 26 MIN. QNH PRESSURE IN HPA 1011.3 1007.2 1007.0 1000.5 1006.6 1002.5 1002.0 1000.2 1006.9 1007.9 995.6 1011.9 995.6 DAY 18 4 3 6 12 15 5 13 11 5 27 24 MEAN QFF PRESSURE IN HPA 1023.3 1018.8 1016.8 1014.7 1013.3 1009.8 1009.4 1009.4 1015.7 1021.8 1017.3 1025.1 1016.3 MAX. QFF PRESSURE IN HPA 1034.1 1029.8 1028.6 1022.7 1017.7 1015.1 1017.4 1016.6 1025.8 1031.7 1033.9 1035.5 1035.5 DAY 30 27 8 24 2 1 23 21 17 29 11 26 MIN. QFF PRESSURE IN HPA 1011.4 1007.4 1007.2 1000.8 1007.0 1002.9 1002.4 1000.6 1007.3 1008.2 996.0 1012.1 996.0 DAY 18 4 3 6 12 15 5 13 11 5 27 24 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1026.4 1022.2 1020.3 1018.0 1017.0 1013.2 1012.9 1012.8 1019.1 1025.4 1020.7 1028.3 1019.7 MAX. QFE PRESSURE IN HPA 1037.4 1033.7 1031.9 1025.0 1021.5 1018.8 1020.2 1019.4 1029.4 1034.6 1036.4 1038.3 1038.3 DAY 30 27 8 23 2 1 23 21 16 29 11 26 MIN. QFE PRESSURE IN HPA 1012.7 1010.9 1009.3 1002.2 1008.8 1006.2 1008.2 1003.3 1010.4 1013.1 998.5 1014.6 998.5 DAY 16 2 3 6 11 15 18 13 11 5 27 23 MEAN QNH PRESSURE IN HPA 1022.9 1018.8 1016.8 1014.5 1013.5 1009.7 1009.5 1009.3 1015.7 1021.9 1017.2 1024.8 1016.2 MAX. QNH PRESSURE IN HPA 1033.9 1030.2 1028.4 1021.5 1018.0 1015.3 1016.7 1015.9 1025.9 1031.1 1032.9 1034.8 1034.8 DAY 30 27 8 23 2 1 23 21 16 29 11 26 MIN. QNH PRESSURE IN HPA 1009.3 1007.5 1005.9 998.8 1005.4 1002.8 1004.8 999.9 1007.0 1009.7 995.1 1011.2 995.1 DAY 16 2 3 6 11 15 18 13 11 5 27 23 MEAN QFF PRESSURE IN HPA 1023.1 1019.0 1017.0 1014.8 1013.9 1010.1 1009.9 1009.7 1016.1 1022.2 1017.5 1025.0 1016.5 MAX. QFF PRESSURE IN HPA 1034.0 1030.4 1028.6 1021.8 1018.3 1015.7 1017.1 1016.3 1026.3 1031.4 1033.2 1034.9 1034.9 DAY 30 27 8 23 2 1 23 21 16 29 11 26 MIN. QFF PRESSURE IN HPA 1009.5 1007.7 1006.1 999.1 1005.7 1003.2 1005.2 1000.3 1007.4 1010.0 995.4 1011.4 995.4 DAY 16 2 3 6 11 15 18 13 11 5 27 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1027.5 1022.9 1021.2 1018.4 1017.4 1013.4 1013.3 1013.0 1019.6 1026.3 1021.4 1029.1 1020.3 MAX. QFE PRESSURE IN HPA 1037.7 1034.7 1031.7 1025.6 1021.5 1018.8 1021.0 1019.3 1030.0 1035.8 1036.4 1039.3 1039.3 DAY 30 27 8 23 2 1 22 21 16 29 11 26 MIN. QFE PRESSURE IN HPA 1013.6 1011.5 1011.3 1001.4 1007.5 1006.0 1008.2 1003.3 1010.9 1015.6 999.0 1014.3 999.0 DAY 16 2 3 6 11 15 8 13 11 2 27 23 MEAN QNH PRESSURE IN HPA 1024.0 1019.5 1017.7 1014.9 1014.0 1010.0 1009.8 1009.5 1016.2 1022.8 1017.9 1025.6 1016.8 MAX. QNH PRESSURE IN HPA 1034.2 1031.2 1028.2 1022.1 1018.0 1015.3 1017.5 1015.8 1026.5 1032.3 1032.9 1035.8 1035.8 DAY 30 27 8 23 2 1 22 21 16 29 11 26 MIN. QNH PRESSURE IN HPA 1010.2 1008.1 1007.9 998.0 1004.1 1002.6 1004.8 999.9 1007.5 1012.2 995.6 1010.9 995.6 DAY 16 2 3 6 11 15 8 13 11 2 27 23 MEAN QFF PRESSURE IN HPA 1024.1 1019.7 1017.9 1015.2 1014.3 1010.4 1010.3 1010.0 1016.6 1023.1 1018.2 1025.9 1017.1 MAX. QFF PRESSURE IN HPA 1034.3 1031.4 1028.4 1022.4 1018.3 1015.8 1017.9 1016.2 1026.9 1032.5 1033.2 1035.9 1035.9 DAY 30 27 8 23 2 1 22 21 16 29 11 26 MIN. QFF PRESSURE IN HPA 1010.4 1008.3 1008.1 998.3 1004.5 1003.0 1005.2 1000.3 1007.9 1012.6 995.9 1011.1 995.9 DAY 16 2 3 6 11 15 8 13 11 2 27 23 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1027.2 1022.7 1021.0 1018.2 1017.2 1013.3 1013.0 1012.6 1019.4 1026.0 1021.1 1028.7 1020.0 MAX. QFE PRESSURE IN HPA 1035.8 1034.6 1030.7 1025.5 1021.1 1018.7 1020.9 1019.0 1029.9 1034.7 1035.3 1037.7 1037.7 DAY 21 27 8 23 2 1 22 6 16 29 11 26 MIN. QFE PRESSURE IN HPA 1013.7 1011.6 1011.9 998.7 1005.0 1005.5 1007.3 1002.3 1011.2 1013.9 1003.1 1013.9 998.7 DAY 16 2 3 6 11 15 4 13 11 2 27 23 MEAN QNH PRESSURE IN HPA 1023.7 1019.3 1017.5 1014.7 1013.8 1009.8 1009.5 1009.1 1015.9 1022.6 1017.6 1025.2 1016.6 MAX. QNH PRESSURE IN HPA 1032.3 1031.1 1027.2 1022.0 1017.6 1015.2 1017.4 1015.5 1026.4 1031.2 1031.8 1034.2 1034.2 DAY 21 27 8 23 2 1 22 6 16 29 11 26 MIN. QNH PRESSURE IN HPA 1010.3 1008.2 1008.5 995.3 1001.6 1002.1 1003.9 998.9 1007.8 1010.5 999.7 1010.5 995.3 DAY 16 2 3 6 11 15 4 13 11 2 27 23 MEAN QFF PRESSURE IN HPA 1023.8 1019.5 1017.7 1014.9 1014.1 1010.1 1010.0 1009.6 1016.5 1023.1 1017.5 1025.3 1016.8 MAX. QFF PRESSURE IN HPA 1032.4 1031.3 1027.4 1022.3 1018.0 1014.2 1017.8 1016.0 1026.8 1031.5 1032.1 1034.3 1034.3 DAY 21 27 8 23 14 3 22 6 16 29 11 26 MIN. QFF PRESSURE IN HPA 1010.5 1008.4 1008.7 995.6 1002.0 1002.5 1004.3 999.3 1008.2 1010.9 1000.0 1010.7 995.6 DAY 16 2 3 6 11 15 4 13 11 2 27 23 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1026.4 1021.8 1020.1 1017.8 1016.6 1012.6 1012.3 1011.9 1018.6 1025.4 1020.5 1027.9 1019.3 MAX. QFE PRESSURE IN HPA 1035.8 1032.9 1029.4 1025.1 1020.8 1018.5 1020.8 1018.6 1029.4 1033.8 1035.5 1036.2 1036.2 DAY 21 27 8 23 13 1 22 6 16 29 10 9 MIN. QFE PRESSURE IN HPA 1013.2 1011.3 1011.1 1002.2 1005.1 1004.6 1006.3 1001.7 1011.2 1011.5 1001.0 1013.5 1001.0 DAY 16 2 26 6 11 15 4 13 11 2 26 23 MEAN QNH PRESSURE IN HPA 1023.0 1018.3 1016.7 1014.4 1013.2 1009.2 1008.8 1008.4 1015.1 1021.9 1017.0 1024.4 1015.9 MAX. QNH PRESSURE IN HPA 1032.3 1029.4 1025.9 1021.6 1017.3 1015.0 1017.3 1015.1 1025.9 1030.3 1032.0 1032.7 1032.7 DAY 21 27 8 23 13 1 22 6 16 29 10 9 MIN. QNH PRESSURE IN HPA 1009.8 1007.9 1007.7 998.8 1001.7 1001.2 1002.9 998.3 1007.8 1008.1 997.6 1010.1 997.6 DAY 16 2 26 6 11 15 4 13 11 2 26 23 MEAN QFF PRESSURE IN HPA 1023.1 1018.5 1016.9 1014.7 1013.5 1009.6 1009.3 1008.9 1015.5 1022.3 1017.3 1024.6 1016.2 MAX. QFF PRESSURE IN HPA 1032.4 1029.6 1026.1 1021.9 1017.7 1015.5 1017.8 1015.6 1026.3 1030.6 1032.3 1033.0 1033.0 DAY 21 27 8 23 13 1 22 6 16 29 10 9 MIN. QFF PRESSURE IN HPA 1010.0 1008.1 1007.9 999.1 1002.1 1001.6 1003.3 998.7 1008.2 1008.5 997.9 1010.3 997.9 DAY 16 2 26 6 11 15 4 13 11 2 26 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1026.8 1022.1 1020.3 1017.9 1016.1 1012.2 1011.8 1011.7 1018.4 1025.3 1020.5 1028.0 1019.3 MAX. QFE PRESSURE IN HPA 1036.2 1032.4 1029.1 1024.6 1021.3 1017.6 1020.8 1018.6 1029.4 1033.8 1036.5 1037.4 1037.4 DAY 29 27 7 23 1 1 22 20 16 29 10 25 MIN. QFE PRESSURE IN HPA 1015.0 1011.9 1010.1 1007.9 1005.4 1005.1 1005.2 1001.7 1011.6 1011.0 999.8 1014.0 999.8 DAY 16 2 26 6 11 15 4 13 10 2 26 23 MEAN QNH PRESSURE IN HPA 1023.4 1018.6 1016.8 1014.4 1012.7 1008.7 1008.4 1008.3 1014.9 1021.8 1017.1 1024.6 1015.8 MAX. QNH PRESSURE IN HPA 1032.7 1028.9 1025.6 1021.1 1017.8 1014.1 1017.3 1015.1 1025.9 1030.3 1033.0 1033.9 1033.9 DAY 29 27 7 23 1 1 22 20 16 29 10 25 MIN. QNH PRESSURE IN HPA 1011.6 1008.5 1006.7 1004.5 1002.0 1001.7 1001.8 998.3 1008.2 1007.6 996.4 1010.6 996.4 DAY 16 2 26 6 11 15 4 13 10 2 26 23 MEAN QFF PRESSURE IN HPA 1023.5 1018.8 1017.0 1014.7 1013.0 1009.2 1008.8 1008.7 1015.3 1022.2 1017.4 1024.8 1016.1 MAX. QFF PRESSURE IN HPA 1032.8 1029.1 1025.8 1021.4 1018.1 1014.5 1017.8 1015.5 1026.3 1030.6 1033.3 1034.1 1034.1 DAY 29 27 7 23 1 1 22 20 16 29 10 25 MIN. QFF PRESSURE IN HPA 1011.8 1008.7 1006.9 1004.8 1002.4 1002.1 1002.2 998.7 1008.6 1007.9 996.7 1010.8 996.7 DAY 16 2 26 6 11 15 4 13 10 2 26 23 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1027.3 1022.5 1020.8 1018.6 1016.6 1012.6 1012.3 1012.6 1019.0 1025.6 1020.8 1028.4 1019.8 MAX. QFE PRESSURE IN HPA 1037.8 1033.1 1030.8 1025.3 1021.7 1017.8 1021.1 1020.7 1029.9 1034.7 1037.9 1039.8 1039.8 DAY 29 26 7 23 1 1 22 20 16 28 10 25 MIN. QFE PRESSURE IN HPA 1016.0 1013.3 1011.2 1007.3 1008.2 1006.4 1005.1 1004.2 1011.2 1011.2 1000.0 1014.7 1000.0 DAY 15 2 26 5 11 14 4 12 10 2 26 23 MEAN QNH PRESSURE IN HPA 1023.8 1019.0 1017.4 1015.2 1013.2 1009.2 1008.9 1009.1 1015.5 1022.1 1017.3 1024.9 1016.3 MAX. QNH PRESSURE IN HPA 1034.3 1029.6 1027.3 1021.8 1018.2 1014.3 1017.6 1017.2 1026.4 1031.2 1034.4 1036.3 1036.3 DAY 29 26 7 23 1 1 22 20 16 28 10 25 MIN. QNH PRESSURE IN HPA 1012.5 1009.9 1007.8 1003.9 1004.8 1003.0 1001.7 1000.8 1007.8 1007.8 996.6 1011.3 996.6 DAY 15 2 26 5 11 14 4 12 10 2 26 23 MEAN QFF PRESSURE IN HPA 1023.9 1019.2 1017.6 1015.4 1013.5 1009.6 1009.3 1009.5 1015.9 1022.5 1017.6 1025.2 1016.6 MAX. QFF PRESSURE IN HPA 1034.4 1029.8 1027.5 1022.1 1018.5 1014.8 1018.0 1017.6 1026.8 1031.5 1034.7 1036.4 1036.4 DAY 29 26 7 23 1 1 22 20 16 28 10 25 MIN. QFF PRESSURE IN HPA 1012.7 1010.1 1008.0 1004.1 1005.2 1003.4 1002.1 1001.2 1008.2 1008.2 996.9 1011.5 996.9 DAY 15 2 26 5 11 14 4 12 10 2 26 23 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1027.0 1022.3 1020.6 1018.4 1016.8 1012.6 1012.5 1012.6 1018.9 1025.2 1020.2 1028.3 1019.6 MAX. QFE PRESSURE IN HPA 1037.7 1033.1 1031.4 1025.4 1021.5 1018.3 1021.0 1020.2 1029.5 1034.9 1038.2 1039.6 1039.6 DAY 29 26 7 23 1 1 22 20 16 28 10 25 MIN. QFE PRESSURE IN HPA 1015.8 1011.5 1012.0 1005.7 1009.6 1005.3 1004.5 1004.1 1010.8 1011.7 1000.1 1014.1 1000.1 DAY 17 3 2 5 11 14 4 12 10 2 26 23 MEAN QNH PRESSURE IN HPA 1023.5 1018.9 1017.2 1015.0 1013.3 1009.2 1009.0 1009.1 1015.5 1021.7 1016.8 1024.8 1016.2 MAX. QNH PRESSURE IN HPA 1034.2 1029.6 1027.9 1021.9 1018.0 1014.8 1017.5 1016.7 1026.0 1031.4 1034.7 1036.1 1036.1 DAY 29 26 7 23 1 1 22 20 16 28 10 25 MIN. QNH PRESSURE IN HPA 1012.3 1008.1 1008.6 1002.3 1006.2 1001.9 1001.1 1000.7 1007.4 1008.3 996.7 1010.7 996.7 DAY 17 3 2 5 11 14 4 12 10 2 26 23 MEAN QFF PRESSURE IN HPA 1023.6 1019.1 1017.4 1015.2 1013.7 1009.6 1009.5 1009.6 1015.9 1022.1 1017.1 1025.0 1016.5 MAX. QFF PRESSURE IN HPA 1034.3 1029.8 1028.1 1022.2 1018.3 1015.3 1017.9 1017.1 1026.3 1031.7 1035.0 1036.2 1036.2 DAY 29 26 7 23 1 1 22 20 16 28 10 25 MIN. QFF PRESSURE IN HPA 1012.5 1008.3 1008.8 1002.6 1006.6 1002.3 1001.5 1001.1 1007.8 1008.7 997.0 1010.9 997.0 DAY 17 3 2 5 11 14 4 12 10 2 26 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.9 8.0 8.7 11.6 18.3 24.1 25.6 25.5 22.1 16.0 13.7 11.7 15.9 MINIMUN AIR TEMPERATURE (C) 3.4 3.8 6.2 8.8 15.0 20.1 21.5 21.9 18.8 13.1 9.9 8.2 12.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 13 23 23 7 0 0 0 66 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 1 0 0 0 0 0 0 0 0 0 0 0 1 TEMPERATURE RECORDS LOWEST(C) 0.0 1.0 1.0 5.0 11.0 17.0 19.0 19.0 15.0 7.0 7.0 2.0 0.0 DAY 6 1 13 6 4 26 24 9 30 27 11 23 MAXIMUM AIR TEMPERATURE (C) 8.5 12.6 11.2 14.8 21.8 28.2 29.5 29.2 25.6 19.2 17.7 15.9 19.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 4 15 17 0 0 1 0 37 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 11.0 23.0 15.0 22.0 28.0 31.0 34.0 32.0 29.0 25.0 30.0 23.0 34.0 DAY 1 26 29 28 23 14 16 5 1 7 16 27 DIF. BETWEEN (MAX.-MIN.) (C) 5.1 8.8 5.0 6.0 6.8 8.1 8.0 7.3 6.8 6.1 7.8 7.7 6.9 MEAN DAILY TEMP. (MDT) (C) 5.9 8.2 8.7 11.8 18.4 24.1 25.5 25.5 22.2 16.1 13.8 12.1 16.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 5.0 93.5 139.5 141.0 48.5 0.0 0.0 0.0 427.5 HEATING DEG. DAYS(BASE 18 0C) 374.0 274.0 289.0 187.5 32.5 0.0 0.0 0.0 1.5 75.5 129.5 185.5 1549.0 DEWPOINT (MEAN C) 4.1 5.2 6.3 9.1 14.4 19.5 21.5 21.6 18.8 14.0 11.1 7.7 12.8 MIXING RATIO (G/KG) 5.04 5.48 5.96 7.26 10.35 14.25 16.22 16.37 13.65 10.15 8.26 6.61 9.97 VAPOUR PRESSURE (HPA) 8.23 8.90 9.71 11.72 16.64 22.73 25.73 26.02 21.89 16.38 13.38 10.73 16.00 SATURATION DEF. (HPA) 1.14 2.12 1.63 2.16 4.73 7.51 7.47 7.00 5.06 2.26 2.50 3.36 3.91 RELATIVE HUMIDITY (MEAN %) 88 84 86 85 80 77 79 80 83 88 86 79 83 RELATIVE HUMIDITY (MAX. %) 95 96 93 95 92 91 92 92 93 95 94 89 93 RELATIVE HUMIDITY (MIN. %) 80 69 74 74 65 62 66 67 71 77 72 64 70 RELATIVE HUMIDITY (MEAN% 03UTC) 92 90 86 91 90 87 88 91 90 93 91 82 89 RELATIVE HUMIDITY (MEAN% 09UTC) 84 77 81 79 73 65 72 71 76 82 78 71 76 RELATIVE HUMIDITY (MEAN% 15UTC) 88 83 84 83 74 72 72 72 79 86 87 78 80 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 228.4 28.1 65.2 56.8 27.2 62.7 196.4 56.4 289.8 487.0 116.6 64.0 1678.6 DAYS WITH PRECIPITATION >=10 9 1 2 2 0 3 5 1 7 12 3 2 47 DAYS WITH PRECIPITATION >= 5 14 2 5 5 2 3 6 2 11 16 4 5 75 DAYS WITH PRECIPITATION >= 1 20 6 10 13 7 8 9 4 14 19 8 6 124 DAYS WITH PRECIPITATION 21 7 14 16 10 11 12 7 15 21 9 6 149 GREATEST DAILY PRECIPITATION 30.0 17.0 20.2 11.0 8.2 25.0 95.0 48.0 61.0 115.0 45.0 32.0 115.0 DAY 9 13 12 20 4 15 22 8 30 22 19 20 DAY WITH THUNDER STORM 0 0 0 2 5 9 3 1 4 0 0 0 24 DAYS WITH SNOW OR SLEET 0 0 1 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 2 0 0 1 0 1 0 0 0 0 0 1 5 WIND DIRECTION (PREVAILING) 270 360 360 360 360 90 360 360 360 270 270 270 360 PREVAILING WIND SPEED(KNOTS) 4.3 4.0 4.0 4.4 3.8 4.0 4.0 4.3 6.2 2.8 2.0 2.4 4.9 PREVAILING WIND PERCENT 34.4 17.9 19.8 27.2 22.3 18.0 18.2 16.2 21.3 32.0 20.1 23.9 18.4 CALMS PERCENT OF WIND 18.6 17.0 19.4 15.9 15.4 18.0 21.1 15.8 15.1 19.8 27.6 13.8 18.1 NO. OF WIND OBSERVATION 247 223 247 239 247 239 247 247 239 247 239 247 2908 VECTOR WIND DIRECTION (MEAN) 306 301 25 26 34 37 353 28 342 325 327 276 345 VECTOR WIND MAGNITUDE(KNOTS) 3.5 0.6 1.2 1.6 1.3 1.1 1.0 0.8 1.7 2.7 0.9 0.6 1.1 WIND STEADINESES (MEAN %) 83.3 18.2 46.2 55.2 52.0 44.0 40.0 32.0 51.5 67.5 47.4 23.1 37.9 WIND SPEED (MEAN KNOTS) 4.2 3.3 2.6 2.9 2.5 2.5 2.5 2.5 3.3 4.0 1.9 2.6 2.9 FASTEST WIND DIRECTION 310 180 310 340 340 50 20 20 340 340 20 340 180 FASTEST WIND SPEED (KNOTS) 24 35 19 22 16 28 15 21 29 35 20 18 35 DAY 30 23 12 3 25 4 21 8 19 22 17 19 DAYS WITH SKY CLEAR (0-2)/8 5 8 2 4 11 11 11 11 8 3 11 7 92 DAYS WITH P.CLOUDY (3-6)/8 8 11 9 8 13 14 12 11 10 5 9 17 127 DAYS WITH CLOUDY (7-8)/8 18 9 20 18 7 5 8 9 12 23 10 7 146 DAYS WITH VISIBILITY =< 2 KM 3 2 2 6 2 3 2 1 3 6 10 3 43 DURATION OF SUNSHINE HOURS 73.6 132.6 66.4 105.8 230.2 226.1 222.0 186.4 158.8 73.8 149.5 137.0 1762.2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1024.0 1019.4 1024.1 1017.5 1017.6 1015.2 1012.7 1015.1 1020.2 1021.7 1021.2 1021.4 1019.2 MAX. QFE PRESSURE IN HPA 1035.4 1031.7 1038.6 1030.1 1030.2 1022.5 1017.9 1027.1 1027.8 1032.7 1031.1 1035.8 1038.6 DAY-HOUR 29- 9 1- 0 14-18 9- 6 20- 6 2- 6 24- 6 8- 6 30-15 28- 6 19- 6 22- 6 MIN. QFE PRESSURE IN HPA 1008.9 997.3 1007.9 999.2 1005.5 1006.0 1006.4 1008.5 1015.1 1008.0 1005.5 1008.4 997.3 DAY-HOUR 11-12 23- 0 31-15 3-18 16- 3 15-12 11-15 26-12 16-15 25-18 17-15 14- 3 MEAN QNH PRESSURE IN HPA 1020.5 1015.9 1020.6 1014.0 1014.1 1011.7 1009.3 1011.6 1016.7 1018.2 1017.8 1017.9 1015.7 MAX. QNH PRESSURE IN HPA 1031.9 1028.2 1035.1 1026.6 1026.7 1019.0 1014.4 1023.6 1024.3 1029.2 1027.6 1032.3 1035.1 DAY-HOUR 29- 9 1- 0 14-18 9- 6 20- 6 2- 6 24- 6 8- 6 30-15 28- 6 19- 6 22- 6 MIN. QNH PRESSURE IN HPA 1005.5 993.9 1004.5 995.8 1002.1 1002.6 1003.0 1005.1 1011.7 1004.6 1002.1 1005.0 993.9 DAY-HOUR 11-12 23- 0 31-15 3-18 16- 3 15-12 11-15 26-12 16-15 25-18 17-15 14- 3 MEAN QFF PRESSURE IN HPA 1020.7 1016.1 1020.9 1014.3 1014.5 1012.2 1009.7 1012.1 1017.1 1018.5 1018.1 1018.2 1016.0 MAX. QFF PRESSURE IN HPA 1032.1 1028.4 1035.3 1026.8 1027.1 1019.4 1014.8 1024.0 1024.6 1029.4 1027.9 1032.5 1035.3 DAY-HOUR 29- 9 1- 0 14-21 9- 6 20- 6 2- 6 24- 6 8- 6 30-15 28- 6 19- 6 22- 6 MIN. QFF PRESSURE IN HPA 1005.7 994.2 1004.7 996.1 1002.5 1003.0 1003.4 1005.5 1012.1 1004.8 1002.4 1005.3 994.2 DAY-HOUR 11-12 23- 0 31-15 3-18 16- 3 15-12 11-15 26-12 16-15 25-18 17-15 14- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1023.8 1019.3 1023.8 1017.1 1017.3 1015.0 1012.6 1014.9 1020.0 1021.4 1021.4 1021.2 1019.0 MAX. QFE PRESSURE IN HPA 1034.9 1031.7 1037.7 1028.2 1029.0 1022.0 1017.8 1025.8 1026.9 1031.7 1029.9 1035.1 1037.7 DAY 31 1 15 9 20 2 24 9 20 28 28 22 MIN. QFE PRESSURE IN HPA 1009.8 997.3 1013.8 1001.2 1005.6 1009.2 1006.9 1008.8 1016.2 1010.0 1010.1 1008.6 997.3 DAY 8 23 24 4 16 8 29 14 9 25 27 14 MEAN QNH PRESSURE IN HPA 1020.3 1015.9 1020.3 1013.6 1013.8 1011.5 1009.2 1011.4 1016.5 1017.9 1017.9 1017.7 1015.5 MAX. QNH PRESSURE IN HPA 1031.4 1028.2 1034.2 1024.7 1025.5 1018.5 1014.3 1022.3 1023.4 1028.2 1026.4 1031.6 1034.2 DAY 31 1 15 9 20 2 24 9 20 28 28 22 MIN. QNH PRESSURE IN HPA 1006.4 993.9 1010.4 997.8 1002.2 1005.8 1003.5 1005.4 1012.7 1006.6 1006.7 1005.2 993.9 DAY 8 23 24 4 16 8 29 14 9 25 27 14 MEAN QFF PRESSURE IN HPA 1020.5 1016.1 1020.6 1013.9 1014.2 1011.9 1009.6 1011.9 1016.9 1018.2 1018.2 1018.0 1015.8 MAX. QFF PRESSURE IN HPA 1031.6 1028.4 1034.4 1024.9 1025.9 1018.9 1014.7 1022.7 1023.8 1028.4 1026.7 1031.8 1034.4 DAY 31 1 15 9 20 2 24 9 20 28 28 22 MIN. QFF PRESSURE IN HPA 1006.6 994.2 1010.6 998.1 1002.6 1006.2 1003.9 1005.8 1013.2 1006.9 1007.0 1005.5 994.2 DAY 8 23 24 4 16 8 29 14 13 25 27 14 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1023.9 1019.4 1024.1 1017.5 1017.6 1015.5 1013.1 1015.5 1020.3 1021.7 1021.6 1021.5 1019.3 MAX. QFE PRESSURE IN HPA 1034.5 1031.2 1037.7 1028.9 1030.0 1022.3 1017.8 1025.9 1026.8 1032.1 1030.0 1035.1 1037.7 DAY 31 1 15 9 20 2 24 9 30 28 19 22 MIN. QFE PRESSURE IN HPA 1009.7 998.9 1014.8 1003.4 1005.5 1009.0 1007.1 1010.5 1016.4 1010.3 1010.3 1008.4 998.9 DAY 8 23 8 4 16 15 29 31 9 25 27 14 MEAN QNH PRESSURE IN HPA 1020.4 1016.0 1020.6 1014.1 1014.1 1012.1 1009.6 1012.0 1016.8 1018.2 1018.1 1018.0 1015.8 MAX. QNH PRESSURE IN HPA 1031.0 1027.7 1034.2 1025.4 1026.5 1018.8 1014.3 1022.4 1023.3 1028.6 1026.5 1031.6 1034.2 DAY 31 1 15 9 20 2 24 9 30 28 19 22 MIN. QNH PRESSURE IN HPA 1006.3 995.5 1011.4 1000.0 1002.1 1005.6 1003.7 1007.1 1012.9 1006.9 1006.9 1005.0 995.5 DAY 8 23 8 4 16 15 29 31 9 25 27 14 MEAN QFF PRESSURE IN HPA 1020.6 1016.2 1020.8 1014.3 1014.5 1012.5 1010.1 1012.5 1017.2 1018.5 1018.4 1018.3 1016.1 MAX. QFF PRESSURE IN HPA 1031.2 1027.9 1034.4 1025.6 1026.8 1019.2 1014.7 1022.8 1023.6 1028.8 1026.8 1031.8 1034.4 DAY 31 1 15 9 20 2 24 9 30 28 19 22 MIN. QFF PRESSURE IN HPA 1006.5 995.8 1011.6 1000.3 1002.5 1006.0 1004.1 1007.5 1013.4 1007.1 1007.2 1005.3 995.8 DAY 8 23 8 4 16 15 29 31 9 25 27 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1024.6 1020.3 1024.7 1018.1 1018.0 1015.8 1013.4 1016.0 1020.8 1022.3 1022.1 1022.4 1019.9 MAX. QFE PRESSURE IN HPA 1035.3 1031.4 1038.0 1030.1 1030.2 1022.5 1017.9 1027.1 1027.4 1032.7 1031.1 1035.8 1038.0 DAY 29 16 15 9 20 2 24 8 30 28 19 22 MIN. QFE PRESSURE IN HPA 1010.6 1001.6 1014.8 1005.2 1007.5 1008.1 1007.2 1011.1 1016.6 1011.3 1011.4 1009.3 1001.6 DAY 11 9 8 28 16 15 29 26 9 25 17 14 MEAN QNH PRESSURE IN HPA 1021.1 1016.8 1021.2 1014.6 1014.5 1012.3 1010.0 1012.5 1017.3 1018.8 1018.7 1018.9 1016.4 MAX. QNH PRESSURE IN HPA 1031.8 1027.9 1034.5 1026.6 1026.7 1019.0 1014.4 1023.6 1023.9 1029.2 1027.6 1032.3 1034.5 DAY 29 16 15 9 20 2 24 8 30 28 19 22 MIN. QNH PRESSURE IN HPA 1007.2 998.2 1011.4 1001.8 1004.1 1004.7 1003.8 1007.7 1013.1 1007.9 1008.0 1005.9 998.2 DAY 11 9 8 28 16 15 29 26 9 25 17 14 MEAN QFF PRESSURE IN HPA 1021.3 1017.0 1021.4 1014.9 1014.9 1012.8 1010.4 1012.9 1017.7 1019.1 1019.0 1019.2 1016.7 MAX. QFF PRESSURE IN HPA 1032.0 1028.1 1034.7 1026.8 1027.1 1019.4 1014.8 1024.0 1024.2 1029.4 1027.9 1032.5 1034.7 DAY 29 16 15 9 20 2 24 8 30 28 19 22 MIN. QFF PRESSURE IN HPA 1007.3 998.4 1011.6 1002.1 1004.5 1005.1 1004.2 1008.1 1013.6 1008.1 1008.3 1006.2 998.4 DAY 11 9 8 28 16 15 29 26 9 25 17 14 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1024.5 1020.0 1024.4 1017.9 1017.9 1015.6 1013.2 1015.6 1020.6 1022.0 1021.3 1021.8 1019.6 MAX. QFE PRESSURE IN HPA 1035.4 1031.4 1037.6 1029.9 1029.6 1022.3 1017.8 1027.0 1027.6 1032.6 1030.5 1034.5 1037.6 DAY 29 16 15 9 20 2 24 8 30 28 19 22 MIN. QFE PRESSURE IN HPA 1009.5 1001.3 1013.1 1005.7 1007.6 1007.3 1007.2 1009.7 1016.5 1010.0 1008.9 1009.4 1001.3 DAY 11 9 8 28 16 15 29 26 24 25 17 14 MEAN QNH PRESSURE IN HPA 1021.0 1016.5 1020.9 1014.5 1014.4 1012.2 1009.7 1012.2 1017.1 1018.5 1017.8 1018.4 1016.1 MAX. QNH PRESSURE IN HPA 1031.9 1027.9 1034.1 1026.4 1026.1 1018.8 1014.3 1023.5 1024.1 1029.1 1027.0 1031.0 1034.1 DAY 29 16 15 9 20 2 24 8 30 28 19 22 MIN. QNH PRESSURE IN HPA 1006.1 997.9 1009.7 1002.3 1004.2 1003.9 1003.8 1006.3 1013.0 1006.6 1005.5 1006.0 997.9 DAY 11 9 8 28 16 15 29 26 24 25 17 14 MEAN QFF PRESSURE IN HPA 1021.2 1016.4 1021.3 1014.9 1015.0 1012.5 1010.0 1012.7 1017.5 1018.7 1018.1 1018.4 1016.4 MAX. QFF PRESSURE IN HPA 1032.1 1028.1 1034.3 1026.6 1026.5 1019.3 1014.7 1023.9 1024.4 1029.4 1027.3 1031.2 1034.3 DAY 29 16 15 9 20 2 24 8 30 28 19 22 MIN. QFF PRESSURE IN HPA 1006.3 998.2 1009.9 1002.6 1004.6 1004.3 1004.2 1006.7 1013.4 1006.9 1005.8 1006.3 998.2 DAY 11 9 8 28 16 15 29 26 24 25 17 14 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1023.6 1018.8 1023.5 1017.0 1017.3 1015.0 1012.5 1014.8 1019.9 1021.3 1020.6 1020.9 1018.8 MAX. QFE PRESSURE IN HPA 1034.1 1031.1 1036.8 1028.5 1029.0 1021.7 1017.0 1026.3 1027.1 1031.5 1029.5 1031.7 1036.8 DAY 29 16 15 9 19 2 1 8 30 28 19 22 MIN. QFE PRESSURE IN HPA 1008.9 998.7 1009.8 1003.1 1008.0 1006.0 1006.8 1008.5 1015.4 1008.8 1007.4 1008.7 998.7 DAY 11 9 31 3 16 15 11 26 16 25 17 14 MEAN QNH PRESSURE IN HPA 1020.2 1015.3 1020.0 1013.6 1013.9 1011.5 1009.1 1011.4 1016.5 1017.9 1017.2 1017.4 1015.3 MAX. QNH PRESSURE IN HPA 1030.6 1027.6 1033.3 1025.0 1025.5 1018.2 1013.5 1022.8 1023.6 1028.0 1026.0 1028.2 1033.3 DAY 29 16 15 9 19 2 1 8 30 28 19 22 MIN. QNH PRESSURE IN HPA 1005.5 995.3 1006.4 999.7 1004.6 1002.6 1003.4 1005.1 1012.0 1005.4 1004.0 1005.3 995.3 DAY 11 9 31 3 16 15 11 26 16 25 17 14 MEAN QFF PRESSURE IN HPA 1020.4 1015.5 1020.3 1013.8 1014.2 1011.9 1009.5 1011.8 1016.9 1018.2 1017.5 1017.7 1015.6 MAX. QFF PRESSURE IN HPA 1030.8 1027.8 1033.5 1025.3 1025.9 1018.6 1014.0 1023.2 1023.9 1028.3 1026.3 1028.4 1033.5 DAY 29 16 15 9 19 2 1 8 30 28 19 22 MIN. QFF PRESSURE IN HPA 1005.7 995.6 1006.6 1000.0 1005.0 1003.0 1003.8 1005.5 1012.4 1005.7 1004.3 1005.6 995.6 DAY 11 9 31 3 16 15 11 26 16 25 17 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1024.0 1019.0 1023.7 1017.0 1017.2 1014.5 1012.1 1014.3 1019.8 1021.5 1020.7 1021.2 1018.7 MAX. QFE PRESSURE IN HPA 1034.3 1031.1 1037.3 1027.7 1029.0 1021.2 1016.8 1026.2 1027.8 1031.5 1030.0 1031.7 1037.3 DAY 29 16 14 15 19 2 23 8 30 28 19 21 MIN. QFE PRESSURE IN HPA 1009.6 1005.1 1007.9 1001.0 1008.7 1007.1 1006.4 1008.9 1015.1 1008.6 1005.5 1009.9 1001.0 DAY 11 22 31 3 15 18 11 26 16 25 17 14 MEAN QNH PRESSURE IN HPA 1020.5 1015.6 1020.2 1013.6 1013.8 1011.1 1008.6 1010.9 1016.3 1018.1 1017.2 1017.8 1015.3 MAX. QNH PRESSURE IN HPA 1030.8 1027.6 1033.8 1024.2 1025.5 1017.7 1013.3 1022.7 1024.3 1028.0 1026.5 1028.2 1033.8 DAY 29 16 14 15 19 2 23 8 30 28 19 21 MIN. QNH PRESSURE IN HPA 1006.2 1001.7 1004.5 997.6 1005.3 1003.7 1003.0 1005.5 1011.7 1005.2 1002.1 1006.5 997.6 DAY 11 22 31 3 15 18 11 26 16 25 17 14 MEAN QFF PRESSURE IN HPA 1020.7 1015.8 1020.4 1013.8 1014.1 1011.5 1009.1 1011.3 1016.7 1018.4 1017.5 1018.0 1015.6 MAX. QFF PRESSURE IN HPA 1031.0 1027.8 1034.0 1024.5 1025.9 1018.1 1013.8 1023.1 1024.6 1028.3 1026.8 1028.4 1034.0 DAY 29 16 14 15 19 2 23 8 30 28 19 21 MIN. QFF PRESSURE IN HPA 1006.4 1001.9 1004.7 997.9 1005.6 1004.1 1003.4 1005.9 1012.1 1005.5 1002.4 1006.8 997.9 DAY 11 22 31 3 15 18 11 26 16 25 17 14 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1024.2 1019.3 1024.3 1017.6 1017.9 1015.0 1012.5 1014.9 1020.4 1022.0 1021.1 1021.3 1019.2 MAX. QFE PRESSURE IN HPA 1035.1 1031.4 1038.6 1028.6 1029.8 1021.8 1017.4 1026.2 1027.7 1031.8 1030.2 1033.8 1038.6 DAY 30 16 14 14 19 1 23 8 30 4 19 21 MIN. QFE PRESSURE IN HPA 1010.7 1002.1 1008.8 999.2 1008.1 1008.5 1006.9 1009.2 1015.3 1008.0 1005.5 1009.7 999.2 DAY 7 22 31 3 15 18 11 3 16 25 17 27 MEAN QNH PRESSURE IN HPA 1020.7 1015.8 1020.8 1014.1 1014.4 1011.6 1009.0 1011.4 1016.9 1018.5 1017.6 1017.9 1015.7 MAX. QNH PRESSURE IN HPA 1031.6 1027.9 1035.1 1025.1 1026.3 1018.3 1013.9 1022.7 1024.2 1028.3 1026.7 1030.3 1035.1 DAY 30 16 14 14 19 1 23 8 30 4 19 21 MIN. QNH PRESSURE IN HPA 1007.3 998.7 1005.4 995.8 1004.7 1005.1 1003.5 1005.8 1011.9 1004.6 1002.1 1006.3 995.8 DAY 7 22 31 3 15 18 11 3 16 25 17 27 MEAN QFF PRESSURE IN HPA 1020.9 1016.0 1021.1 1014.4 1014.8 1012.0 1009.5 1011.8 1017.3 1018.8 1017.9 1018.1 1016.1 MAX. QFF PRESSURE IN HPA 1031.8 1028.1 1035.3 1025.3 1026.7 1018.7 1014.3 1023.1 1024.6 1028.7 1027.0 1030.5 1035.3 DAY 30 16 14 14 19 1 23 8 30 4 19 21 MIN. QFF PRESSURE IN HPA 1007.5 998.9 1005.6 996.1 1005.1 1005.5 1003.9 1006.2 1012.3 1004.8 1002.4 1006.6 996.1 DAY 7 22 31 3 15 18 11 3 16 25 17 27 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1023.7 1019.1 1024.6 1017.6 1017.8 1015.3 1012.6 1015.0 1020.2 1021.5 1021.3 1020.8 1019.1 MAX. QFE PRESSURE IN HPA 1035.1 1031.4 1038.6 1028.5 1029.8 1022.2 1017.8 1026.0 1027.2 1031.7 1029.8 1034.5 1038.6 DAY 30 16 14 14 19 1 23 8 19 27 19 21 MIN. QFE PRESSURE IN HPA 1010.2 1000.5 1013.5 999.2 1007.1 1009.3 1007.3 1008.6 1015.9 1008.9 1010.0 1009.7 999.2 DAY 7 22 23 3 1 18 11 13 16 25 26 13 MEAN QNH PRESSURE IN HPA 1020.3 1015.6 1021.2 1014.1 1014.3 1011.9 1009.2 1011.6 1016.7 1018.0 1017.8 1017.4 1015.7 MAX. QNH PRESSURE IN HPA 1031.6 1027.9 1035.1 1025.0 1026.3 1018.7 1014.3 1022.5 1023.7 1028.2 1026.3 1031.0 1035.1 DAY 30 16 14 14 19 1 23 8 19 27 19 21 MIN. QNH PRESSURE IN HPA 1006.8 997.1 1010.1 995.8 1003.7 1005.9 1003.9 1005.2 1012.4 1005.5 1006.6 1006.3 995.8 DAY 7 22 23 3 1 18 11 13 16 25 26 13 MEAN QFF PRESSURE IN HPA 1020.5 1015.8 1021.4 1014.4 1014.7 1012.3 1009.6 1012.0 1017.1 1018.3 1018.1 1017.6 1016.0 MAX. QFF PRESSURE IN HPA 1031.8 1028.1 1035.3 1025.3 1026.7 1019.1 1014.7 1022.9 1024.1 1028.4 1026.6 1031.2 1035.3 DAY 30 16 14 14 19 1 23 8 19 27 19 21 MIN. QFF PRESSURE IN HPA 1007.0 997.4 1010.3 996.1 1004.0 1006.3 1004.3 1005.6 1012.9 1005.8 1006.9 1006.6 996.1 DAY 7 22 23 3 1 18 11 13 16 25 26 13 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 10.9 9.5 10.7 15.4 18.2 23.9 26.9 27.1 21.9 17.6 15.2 12.5 17.5 MINIMUN AIR TEMPERATURE (C) 7.4 6.5 7.8 12.4 14.8 20.1 22.2 22.7 18.9 14.9 12.1 9.2 14.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 12 26 31 5 0 0 0 74 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS LOWEST(C) 4.0 3.0 4.0 7.0 11.0 17.0 17.0 21.0 17.0 12.0 8.0 7.0 3.0 DAY 16 7 23 5 8 23 8 6 13 18 27 23 MAXIMUM AIR TEMPERATURE (C) 14.7 12.0 13.4 18.4 21.3 27.8 30.9 31.6 25.0 20.7 18.2 15.7 20.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 7 22 28 0 0 0 0 57 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 26.0 15.0 18.0 25.0 27.0 31.0 37.0 34.0 29.0 25.0 20.0 22.0 37.0 DAY 3 26 13 17 26 7 13 3 4 7 1 17 DIF. BETWEEN (MAX.-MIN.) (C) 7.3 5.5 5.6 6.0 6.5 7.7 8.7 8.9 6.1 5.8 6.1 6.5 6.7 MEAN DAILY TEMP. (MDT) (C) 11.1 9.2 10.6 15.4 18.1 23.9 26.5 27.2 22.0 17.8 15.2 12.5 17.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 3.5 88.5 171.5 191.0 39.5 0.0 0.0 0.0 494.0 HEATING DEG. DAYS(BASE 18 0C) 133.0 133.5 229.5 81.0 32.5 0.0 0.0 0.0 0.0 20.5 85.0 171.5 886.5 DEWPOINT (MEAN C) 7.4 7.1 8.2 12.2 14.8 19.4 21.2 22.3 19.1 15.5 12.9 9.6 14.2 MIXING RATIO (G/KG) 6.45 6.26 6.78 8.90 10.63 14.28 16.18 17.13 13.86 10.92 9.24 7.55 10.68 VAPOUR PRESSURE (HPA) 10.49 10.17 10.99 14.36 17.12 22.75 25.61 27.09 22.18 17.66 15.04 12.23 17.14 SATURATION DEF. (HPA) 2.87 1.78 2.02 3.35 4.08 7.30 10.29 9.40 4.36 2.63 2.38 2.46 4.41 RELATIVE HUMIDITY (MEAN %) 83 86 85 82 82 77 73 76 85 88 87 84 82 RELATIVE HUMIDITY (MAX. %) 93 93 93 93 93 90 87 89 94 96 94 93 92 RELATIVE HUMIDITY (MIN. %) 67 76 75 69 67 62 57 63 75 77 77 69 70 RELATIVE HUMIDITY (MEAN% 03UTC) 86 89 90 88 90 86 83 86 93 94 93 86 89 RELATIVE HUMIDITY (MEAN% 09UTC) 77 80 79 74 75 67 61 66 77 81 79 79 75 RELATIVE HUMIDITY (MEAN% 15UTC) 82 85 82 79 78 73 68 71 82 85 85 83 79 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 100.4 88.4 98.1 64.2 50.3 10.5 2.8 165.4 345.6 439.0 164.4 95.8 1624.9 DAYS WITH PRECIPITATION >=10 6 3 3 2 1 0 0 4 10 8 2 3 42 DAYS WITH PRECIPITATION >= 5 8 6 4 3 4 1 0 4 10 13 5 4 62 DAYS WITH PRECIPITATION >= 1 8 7 10 3 10 3 2 5 16 16 5 7 92 DAYS WITH PRECIPITATION 8 10 13 8 12 4 5 8 18 16 8 8 118 GREATEST DAILY PRECIPITATION 19.0 36.0 28.0 43.0 18.0 8.0 1.1 88.0 66.0 72.0 93.0 50.0 93.0 DAY 31 6 20 24 5 22 22 5 21 1 6 29 DAY WITH THUNDER STORM 0 0 1 0 4 2 2 5 7 0 0 4 25 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 2 0 0 1 0 0 1 0 0 0 0 1 5 WIND DIRECTION (PREVAILING) 360 360 360 360 90 45 360 45 270 270 270 270 360 PREVAILING WIND SPEED(KNOTS) 4.1 4.0 4.3 2.4 3.1 2.9 3.1 3.4 3.3 2.3 2.0 2.9 4.7 PREVAILING WIND PERCENT 22.7 18.4 19.0 19.2 23.5 19.2 16.2 15.4 20.5 20.2 24.3 24.3 17.2 CALMS PERCENT OF WIND 25.9 25.6 27.5 20.9 18.2 19.7 18.6 19.8 24.3 36.0 23.0 13.4 22.7 NO. OF WIND OBSERVATION 247 223 247 239 247 239 247 247 239 247 239 247 2908 VECTOR WIND DIRECTION (MEAN) 304 351 1 13 12 37 32 14 340 333 322 316 349 VECTOR WIND MAGNITUDE(KNOTS) 1.2 1.1 1.2 0.5 1.6 1.1 0.6 0.8 1.5 0.9 0.9 1.8 1.0 WIND STEADINESES (MEAN %) 46.2 45.8 48.0 25.0 53.3 45.8 31.6 33.3 48.4 47.4 37.5 54.5 40.0 WIND SPEED (MEAN KNOTS) 2.6 2.4 2.5 2.0 3.0 2.4 1.9 2.4 3.1 1.9 2.4 3.3 2.5 FASTEST WIND DIRECTION 160 50 340 90 310 290 340 50 360 360 340 340 360 FASTEST WIND SPEED (KNOTS) 28 28 21 13 25 21 8 35 38 38 30 30 38 DAY 26 5 22 1 16 13 5 30 20 16 5 29 DAYS WITH SKY CLEAR (0-2)/8 8 6 6 5 10 17 23 22 5 9 4 4 119 DAYS WITH P.CLOUDY (3-6)/8 5 5 7 9 11 9 4 4 8 4 12 13 91 DAYS WITH CLOUDY (7-8)/8 18 16 18 16 10 4 4 5 17 18 14 14 154 DAYS WITH VISIBILITY =< 2 KM 11 7 6 3 5 2 1 1 9 5 4 2 56 DURATION OF SUNSHINE HOURS 89.4 87.4 106.8 128.7 208.9 271.3 280.9 259.0 116.2 120.8 109.9 98.0 1877.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1021.3 1020.9 1020.0 1018.1 1019.7 1014.3 1011.3 1011.4 1018.4 1023.4 1027.9 1020.5 1018.9 MAX. QFE PRESSURE IN HPA 1029.8 1030.1 1031.2 1029.8 1030.7 1021.2 1020.4 1022.1 1026.2 1033.4 1035.5 1035.2 1035.5 DAY-HOUR 1- 0 22-18 2- 6 4-18 17-21 17- 3 8- 3 31-18 21- 6 9- 6 23- 6 29-18 MIN. QFE PRESSURE IN HPA 1008.1 1009.1 1004.6 1005.5 1007.3 1005.2 1003.5 1003.7 1008.9 1012.9 1012.1 1006.5 1003.5 DAY-HOUR 26-21 2-15 28-12 13- 9 25-21 13- 9 25-15 29- 0 11- 3 15-12 30-12 18-12 MEAN QNH PRESSURE IN HPA 1017.8 1017.5 1016.5 1014.7 1016.3 1010.9 1007.8 1007.9 1014.9 1019.9 1024.4 1017.0 1015.5 MAX. QNH PRESSURE IN HPA 1026.3 1026.6 1027.7 1026.3 1027.2 1017.7 1016.9 1018.6 1022.7 1029.9 1032.0 1031.7 1032.0 DAY-HOUR 1- 0 22-18 2- 6 4-18 17-21 17- 3 8- 3 31-18 21- 6 9- 6 23- 6 29-18 MIN. QNH PRESSURE IN HPA 1004.7 1005.7 1001.2 1002.1 1003.9 1001.8 1000.1 1000.3 1005.5 1009.5 1008.7 1003.1 1000.1 DAY-HOUR 26-21 2-15 28-12 13- 9 25-21 13- 9 25-15 29- 0 11- 3 15-12 30-12 18-12 MEAN QFF PRESSURE IN HPA 1018.1 1017.7 1016.7 1015.0 1016.6 1011.3 1008.2 1008.4 1015.3 1020.3 1024.8 1017.3 1015.8 MAX. QFF PRESSURE IN HPA 1026.6 1026.8 1027.9 1026.6 1027.5 1018.1 1017.3 1019.0 1023.1 1030.2 1032.3 1031.9 1032.3 DAY-HOUR 1- 0 22-18 2- 6 4-18 17-21 17- 9 8- 3 31-18 21- 6 9- 9 23- 6 29-18 MIN. QFF PRESSURE IN HPA 1005.0 1005.9 1001.5 1002.4 1004.3 1002.2 1000.6 1000.7 1005.9 1009.8 1008.9 1003.4 1000.6 DAY-HOUR 26-21 2-15 28-12 13- 9 25-21 13-12 25-15 29- 3 11- 3 15-15 30-12 18-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1021.4 1020.8 1019.4 1018.0 1019.6 1014.3 1011.1 1011.1 1018.3 1023.0 1027.9 1020.3 1018.8 MAX. QFE PRESSURE IN HPA 1029.8 1029.5 1029.8 1029.7 1029.9 1020.3 1020.0 1014.6 1026.0 1032.0 1035.0 1035.2 1035.2 DAY 1 23 2 5 18 17 8 16 21 9 23 30 MIN. QFE PRESSURE IN HPA 1009.1 1011.0 1005.6 1005.8 1011.8 1007.8 1003.6 1003.7 1009.1 1014.9 1014.4 1007.9 1003.6 DAY 27 3 28 17 4 13 26 29 11 15 30 12 MEAN QNH PRESSURE IN HPA 1018.0 1017.4 1016.0 1014.6 1016.1 1010.8 1007.6 1007.7 1014.9 1019.5 1024.4 1016.8 1015.3 MAX. QNH PRESSURE IN HPA 1026.3 1026.0 1026.3 1026.2 1026.4 1016.8 1016.5 1011.2 1022.5 1028.5 1031.5 1031.7 1031.7 DAY 1 23 2 5 18 17 8 16 21 9 23 30 MIN. QNH PRESSURE IN HPA 1005.7 1007.6 1002.2 1002.4 1008.4 1004.4 1000.2 1000.3 1005.7 1011.5 1011.0 1004.5 1000.2 DAY 27 3 28 17 4 13 26 29 11 15 30 12 MEAN QFF PRESSURE IN HPA 1018.2 1017.6 1016.2 1014.9 1016.5 1011.3 1008.1 1008.1 1015.2 1019.8 1024.7 1017.1 1015.7 MAX. QFF PRESSURE IN HPA 1026.6 1026.2 1026.5 1026.5 1026.7 1017.2 1016.9 1011.6 1022.9 1028.8 1031.8 1031.9 1031.9 DAY 1 23 2 5 18 17 8 16 21 9 23 30 MIN. QFF PRESSURE IN HPA 1006.0 1007.8 1002.5 1002.7 1008.7 1004.8 1000.7 1000.7 1006.1 1011.8 1011.2 1004.8 1000.7 DAY 27 3 28 17 4 13 26 29 11 15 30 12 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1021.5 1020.9 1019.9 1018.4 1020.0 1014.9 1011.7 1011.6 1018.5 1023.4 1028.1 1020.4 1019.1 MAX. QFE PRESSURE IN HPA 1028.3 1029.3 1030.3 1029.7 1029.8 1021.2 1020.4 1016.4 1025.9 1032.6 1035.2 1034.5 1035.2 DAY 1 23 2 5 18 17 8 31 21 9 23 30 MIN. QFE PRESSURE IN HPA 1009.3 1011.0 1004.7 1006.1 1012.6 1007.0 1005.3 1003.7 1008.9 1014.8 1013.9 1007.9 1003.7 DAY 27 3 28 13 25 13 25 29 11 15 30 12 MEAN QNH PRESSURE IN HPA 1018.0 1017.5 1016.4 1014.9 1016.6 1011.5 1008.3 1008.2 1015.1 1019.9 1024.6 1016.9 1015.6 MAX. QNH PRESSURE IN HPA 1024.8 1025.8 1026.8 1026.2 1026.3 1017.7 1016.9 1012.9 1022.4 1029.1 1031.7 1031.0 1031.7 DAY 1 23 2 5 18 17 8 31 21 9 23 30 MIN. QNH PRESSURE IN HPA 1005.9 1007.6 1001.3 1002.7 1009.2 1003.6 1001.9 1000.3 1005.5 1011.4 1010.5 1004.5 1000.3 DAY 27 3 28 13 25 13 25 29 11 15 30 12 MEAN QFF PRESSURE IN HPA 1018.3 1017.7 1016.7 1015.2 1016.9 1011.9 1008.7 1008.6 1015.4 1020.3 1024.9 1017.2 1016.0 MAX. QFF PRESSURE IN HPA 1025.0 1026.0 1027.0 1026.5 1026.6 1018.1 1017.3 1013.4 1022.8 1029.4 1032.0 1031.2 1032.0 DAY 1 23 2 5 18 17 8 31 21 9 23 30 MIN. QFF PRESSURE IN HPA 1006.2 1007.8 1001.6 1003.0 1009.5 1004.0 1002.3 1000.7 1005.9 1011.7 1010.7 1004.8 1000.7 DAY 27 3 28 13 25 13 25 29 11 15 30 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1021.9 1021.6 1020.6 1018.6 1020.4 1015.1 1011.9 1011.9 1018.9 1024.0 1028.7 1020.9 1019.5 MAX. QFE PRESSURE IN HPA 1029.3 1029.4 1031.2 1029.7 1029.8 1021.2 1020.3 1017.6 1026.2 1033.4 1035.5 1035.1 1035.5 DAY 31 23 2 5 18 17 8 31 21 9 23 30 MIN. QFE PRESSURE IN HPA 1010.6 1011.8 1005.4 1006.3 1012.5 1005.8 1005.5 1003.7 1010.9 1014.4 1013.9 1007.3 1003.7 DAY 27 3 28 13 25 13 25 29 11 15 30 18 MEAN QNH PRESSURE IN HPA 1018.5 1018.1 1017.1 1015.1 1016.9 1011.6 1008.5 1008.5 1015.5 1020.6 1025.2 1017.4 1016.1 MAX. QNH PRESSURE IN HPA 1025.8 1025.9 1027.7 1026.2 1026.3 1017.7 1016.8 1014.1 1022.7 1029.9 1032.0 1031.6 1032.0 DAY 31 23 2 5 18 17 8 31 21 9 23 30 MIN. QNH PRESSURE IN HPA 1007.2 1008.4 1002.0 1002.9 1009.1 1002.4 1002.1 1000.3 1007.5 1011.0 1010.5 1003.9 1000.3 DAY 27 3 28 13 25 13 25 29 11 15 30 18 MEAN QFF PRESSURE IN HPA 1018.7 1018.4 1017.4 1015.5 1017.3 1012.0 1009.0 1009.0 1015.8 1020.9 1025.5 1017.7 1016.4 MAX. QFF PRESSURE IN HPA 1026.0 1026.2 1027.9 1026.5 1026.6 1018.1 1017.2 1014.6 1023.1 1030.2 1032.3 1031.8 1032.3 DAY 31 23 2 5 18 17 8 31 21 9 23 30 MIN. QFF PRESSURE IN HPA 1007.5 1008.6 1002.3 1003.2 1009.4 1002.8 1002.6 1000.8 1007.9 1011.3 1010.7 1004.2 1000.8 DAY 27 3 28 13 25 13 25 29 11 15 30 18 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1021.6 1021.3 1020.6 1018.3 1020.1 1014.8 1011.8 1011.8 1018.6 1023.9 1028.2 1020.7 1019.3 MAX. QFE PRESSURE IN HPA 1029.3 1029.5 1031.0 1029.7 1028.9 1021.2 1019.9 1018.6 1026.0 1033.4 1035.2 1033.9 1035.2 DAY 31 22 2 5 17 17 8 31 21 9 23 30 MIN. QFE PRESSURE IN HPA 1010.9 1012.0 1004.8 1005.5 1012.3 1005.2 1004.9 1004.8 1010.8 1014.1 1013.3 1008.7 1004.8 DAY 27 3 28 13 25 13 25 29 24 15 30 18 MEAN QNH PRESSURE IN HPA 1018.2 1017.8 1017.1 1014.8 1016.7 1011.3 1008.4 1008.4 1015.2 1020.4 1024.7 1017.3 1015.8 MAX. QNH PRESSURE IN HPA 1025.8 1026.0 1027.5 1026.2 1025.4 1017.7 1016.4 1015.1 1022.5 1029.9 1031.7 1030.4 1031.7 DAY 31 22 2 5 17 17 8 31 21 9 23 30 MIN. QNH PRESSURE IN HPA 1007.5 1008.6 1001.4 1002.1 1008.9 1001.8 1001.5 1001.4 1007.4 1010.7 1009.9 1005.3 1001.4 DAY 27 3 28 13 25 13 25 29 24 15 30 18 MEAN QFF PRESSURE IN HPA 1018.3 1017.8 1017.2 1014.8 1017.1 1011.7 1008.7 1008.9 1015.4 1020.8 1025.0 1017.6 1016.1 MAX. QFF PRESSURE IN HPA 1026.0 1026.3 1027.7 1026.5 1025.7 1018.1 1016.8 1015.6 1022.9 1030.2 1032.0 1030.6 1032.0 DAY 31 22 2 5 17 17 8 31 21 9 23 30 MIN. QFF PRESSURE IN HPA 1007.8 1008.8 1001.7 1002.4 1009.2 1002.2 1002.0 1001.8 1007.8 1011.0 1010.1 1005.6 1001.7 DAY 27 3 28 13 25 13 25 29 24 15 30 18 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1020.7 1020.3 1019.7 1017.6 1019.5 1014.0 1011.1 1011.2 1017.9 1023.2 1027.3 1020.0 1018.5 MAX. QFE PRESSURE IN HPA 1028.6 1029.1 1030.1 1028.4 1029.2 1020.1 1019.8 1018.7 1024.7 1032.8 1034.2 1033.1 1034.2 DAY 31 22 2 5 17 17 7 31 15 9 23 29 MIN. QFE PRESSURE IN HPA 1010.7 1009.3 1004.6 1005.7 1010.1 1005.2 1004.0 1004.2 1010.5 1012.9 1012.1 1006.5 1004.0 DAY 27 2 28 13 3 13 25 29 8 15 30 18 MEAN QNH PRESSURE IN HPA 1017.2 1016.9 1016.2 1014.2 1016.1 1010.6 1007.6 1007.7 1014.4 1019.7 1023.9 1016.5 1015.1 MAX. QNH PRESSURE IN HPA 1025.1 1025.6 1026.6 1024.9 1025.7 1016.6 1016.3 1015.2 1021.2 1029.3 1030.7 1029.6 1030.7 DAY 31 22 2 5 17 17 7 31 15 9 23 29 MIN. QNH PRESSURE IN HPA 1007.3 1005.9 1001.2 1002.3 1006.7 1001.8 1000.6 1000.8 1007.1 1009.5 1008.7 1003.1 1000.6 DAY 27 2 28 13 3 13 25 29 8 15 30 18 MEAN QFF PRESSURE IN HPA 1017.5 1017.1 1016.5 1014.5 1016.4 1011.0 1008.1 1008.2 1014.8 1020.1 1024.2 1016.8 1015.4 MAX. QFF PRESSURE IN HPA 1025.3 1025.9 1026.9 1025.2 1026.0 1017.0 1016.7 1015.7 1021.6 1029.6 1031.0 1029.8 1031.0 DAY 31 22 2 5 17 17 7 31 15 9 23 29 MIN. QFF PRESSURE IN HPA 1007.6 1006.1 1001.5 1002.6 1007.0 1002.2 1001.1 1001.2 1007.5 1009.8 1008.9 1003.4 1001.1 DAY 27 2 28 13 3 13 25 29 8 15 30 18 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1021.0 1020.6 1019.6 1017.7 1019.3 1013.6 1010.5 1010.8 1017.8 1023.2 1027.4 1020.3 1018.5 MAX. QFE PRESSURE IN HPA 1029.0 1029.1 1029.9 1028.3 1029.7 1019.4 1019.8 1019.4 1024.5 1032.1 1034.2 1033.8 1034.2 DAY 31 6 2 4 17 17 7 31 21 9 23 29 MIN. QFE PRESSURE IN HPA 1011.1 1009.1 1006.6 1006.7 1007.7 1006.3 1003.5 1004.2 1009.5 1012.9 1012.5 1007.3 1003.5 DAY 26 2 28 16 3 13 25 29 8 15 30 18 MEAN QNH PRESSURE IN HPA 1017.5 1017.1 1016.2 1014.2 1015.8 1010.1 1007.1 1007.4 1014.4 1019.7 1023.9 1016.9 1015.0 MAX. QNH PRESSURE IN HPA 1025.5 1025.6 1026.4 1024.8 1026.2 1015.9 1016.3 1015.9 1021.0 1028.6 1030.7 1030.3 1030.7 DAY 31 6 2 4 17 17 7 31 21 9 23 29 MIN. QNH PRESSURE IN HPA 1007.7 1005.7 1003.2 1003.3 1004.3 1002.9 1000.1 1000.8 1006.1 1009.5 1009.1 1003.9 1000.1 DAY 26 2 28 16 3 13 25 29 8 15 30 18 MEAN QFF PRESSURE IN HPA 1017.7 1017.4 1016.4 1014.5 1016.2 1010.5 1007.5 1007.9 1014.8 1020.0 1024.2 1017.2 1015.4 MAX. QFF PRESSURE IN HPA 1025.7 1025.9 1026.6 1025.1 1026.5 1016.3 1016.7 1016.4 1021.4 1028.9 1031.0 1030.5 1031.0 DAY 31 22 2 4 17 17 7 31 21 9 23 29 MIN. QFF PRESSURE IN HPA 1007.9 1005.9 1003.5 1003.6 1004.6 1003.3 1000.6 1001.2 1006.5 1009.8 1009.3 1004.2 1000.6 DAY 26 2 28 16 3 13 25 29 8 15 30 18 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1021.4 1021.1 1020.2 1018.5 1019.5 1014.0 1011.0 1011.5 1018.7 1023.4 1027.8 1020.9 1019.0 MAX. QFE PRESSURE IN HPA 1029.6 1030.1 1030.2 1029.8 1030.5 1019.8 1020.1 1022.1 1025.9 1031.0 1035.0 1035.2 1035.2 DAY 31 22 2 4 17 2 7 31 14 9 22 29 MIN. QFE PRESSURE IN HPA 1009.3 1009.3 1007.2 1007.0 1007.7 1007.5 1003.6 1005.9 1010.0 1013.8 1015.6 1008.0 1003.6 DAY 26 2 19 16 25 10 25 28 10 15 30 11 MEAN QNH PRESSURE IN HPA 1018.0 1017.6 1016.7 1015.0 1016.0 1010.5 1007.6 1008.0 1015.2 1020.0 1024.4 1017.4 1015.5 MAX. QNH PRESSURE IN HPA 1026.1 1026.6 1026.7 1026.3 1027.0 1016.3 1016.6 1018.6 1022.4 1027.5 1031.5 1031.7 1031.7 DAY 31 22 2 4 17 2 7 31 14 9 22 29 MIN. QNH PRESSURE IN HPA 1005.9 1005.9 1003.8 1003.6 1004.3 1004.1 1000.2 1002.5 1006.6 1010.4 1012.2 1004.6 1000.2 DAY 26 2 19 16 25 10 25 28 10 15 30 11 MEAN QFF PRESSURE IN HPA 1018.2 1017.9 1017.0 1015.3 1016.3 1010.9 1008.0 1008.5 1015.6 1020.3 1024.7 1017.7 1015.9 MAX. QFF PRESSURE IN HPA 1026.3 1026.8 1026.9 1026.6 1027.3 1016.7 1017.0 1019.0 1022.8 1027.8 1031.8 1031.9 1031.9 DAY 31 22 2 4 17 2 7 31 14 9 22 29 MIN. QFF PRESSURE IN HPA 1006.2 1006.1 1004.0 1003.9 1004.7 1004.5 1000.7 1002.9 1007.0 1010.7 1012.5 1004.9 1000.7 DAY 26 2 19 16 25 10 25 28 10 15 30 11 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1021.0 1020.9 1019.8 1018.3 1019.6 1014.2 1011.1 1011.1 1018.4 1023.2 1028.1 1020.4 1018.9 MAX. QFE PRESSURE IN HPA 1029.0 1029.9 1029.8 1029.7 1030.7 1020.1 1020.2 1015.1 1025.4 1031.6 1035.0 1035.2 1035.2 DAY 11 22 1 4 17 2 7 8 14 8 22 29 MIN. QFE PRESSURE IN HPA 1008.1 1010.7 1006.8 1006.6 1007.3 1008.3 1003.6 1004.2 1010.4 1014.8 1015.1 1007.6 1003.6 DAY 26 2 19 16 25 12 25 28 10 15 29 11 MEAN QNH PRESSURE IN HPA 1017.6 1017.4 1016.3 1014.8 1016.2 1010.8 1007.7 1007.7 1014.9 1019.7 1024.6 1017.0 1015.4 MAX. QNH PRESSURE IN HPA 1025.5 1026.4 1026.3 1026.2 1027.2 1016.6 1016.7 1011.7 1021.9 1028.1 1031.5 1031.7 1031.7 DAY 11 22 1 4 17 2 7 8 14 8 22 29 MIN. QNH PRESSURE IN HPA 1004.7 1007.3 1003.4 1003.2 1003.9 1004.9 1000.2 1000.8 1007.0 1011.4 1011.7 1004.2 1000.2 DAY 26 2 19 16 25 12 25 28 10 15 29 11 MEAN QFF PRESSURE IN HPA 1017.8 1017.7 1016.6 1015.1 1016.5 1011.2 1008.1 1008.2 1015.3 1020.1 1025.0 1017.3 1015.7 MAX. QFF PRESSURE IN HPA 1025.7 1026.6 1026.5 1026.5 1027.5 1017.1 1017.1 1012.1 1022.3 1028.4 1031.8 1031.9 1031.9 DAY 11 22 1 4 17 2 7 8 14 8 22 29 MIN. QFF PRESSURE IN HPA 1005.0 1007.5 1003.6 1003.5 1004.3 1005.3 1000.7 1001.2 1007.4 1011.7 1011.9 1004.5 1000.7 DAY 26 2 19 16 25 12 25 28 23 15 29 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 9.2 5.3 8.5 12.5 19.4 22.0 25.1 26.0 21.1 18.4 14.6 10.0 16.0 MINIMUN AIR TEMPERATURE (C) 5.2 2.8 5.7 9.0 16.0 17.7 20.8 21.4 18.1 15.0 11.9 5.5 12.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 5 18 23 3 0 0 0 49 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 6 0 0 0 0 0 0 0 0 0 3 9 TEMPERATURE RECORDS LOWEST(C) 1.0 -2.0 1.0 2.0 13.0 10.0 18.0 19.0 15.0 10.0 4.0 -1.0 -2.0 DAY 23 3 10 1 1 6 26 21 24 23 29 25 MAXIMUM AIR TEMPERATURE (C) 13.4 7.7 11.4 15.7 23.0 26.1 28.8 30.1 24.6 21.7 17.8 15.0 19.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 1 8 25 2 0 0 0 36 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 27.0 14.0 14.0 23.0 28.0 30.0 34.0 32.0 32.0 25.0 24.0 24.0 34.0 DAY 15 25 15 21 20 11 9 2 9 11 4 7 DIF. BETWEEN (MAX.-MIN.) (C) 8.2 4.9 5.7 6.7 7.0 8.4 8.0 8.7 6.5 6.7 5.9 9.5 7.2 MEAN DAILY TEMP. (MDT) (C) 9.3 5.2 8.5 12.3 19.5 21.9 24.8 25.8 21.3 18.4 14.9 10.3 16.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 6.0 49.0 117.5 147.5 33.5 0.0 0.0 0.0 353.5 HEATING DEG. DAYS(BASE 18 0C) 270.5 357.5 294.0 170.0 6.5 6.5 0.0 0.0 1.0 14.0 106.0 239.5 1465.5 DEWPOINT (MEAN C) 5.7 2.3 6.1 9.2 15.1 16.2 18.8 20.4 18.2 15.7 12.4 6.6 12.2 MIXING RATIO (G/KG) 5.72 4.50 5.84 7.33 10.82 11.77 13.73 15.24 13.14 11.13 9.15 6.17 9.54 VAPOUR PRESSURE (HPA) 9.31 7.35 9.48 11.83 17.39 18.83 21.87 24.20 21.03 17.97 14.79 10.02 15.34 SATURATION DEF. (HPA) 2.59 1.71 1.69 2.92 5.50 8.20 10.28 9.84 4.34 3.35 2.27 2.66 4.61 RELATIVE HUMIDITY (MEAN %) 81 82 85 81 77 71 70 73 85 85 87 82 80 RELATIVE HUMIDITY (MAX. %) 92 91 92 90 90 87 84 88 95 95 96 93 91 RELATIVE HUMIDITY (MIN. %) 66 69 76 68 61 52 55 58 73 72 77 65 66 RELATIVE HUMIDITY (MEAN% 03UTC) 88 83 90 88 87 83 81 85 93 93 92 88 88 RELATIVE HUMIDITY (MEAN% 09UTC) 71 77 79 73 66 60 59 61 76 76 79 70 71 RELATIVE HUMIDITY (MEAN% 15UTC) 79 82 82 78 70 65 63 67 79 83 85 81 76 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 65.0 160.2 186.7 31.9 31.3 27.1 42.0 21.9 281.5 378.4 255.0 84.0 1565.0 DAYS WITH PRECIPITATION >=10 2 5 5 0 2 1 2 1 11 7 10 3 49 DAYS WITH PRECIPITATION >= 5 3 8 7 2 3 1 2 2 11 7 11 4 61 DAYS WITH PRECIPITATION >= 1 7 14 14 10 5 2 2 5 15 12 16 6 108 DAYS WITH PRECIPITATION 7 16 16 13 9 3 2 6 15 12 20 7 126 GREATEST DAILY PRECIPITATION 25.0 44.0 53.0 8.0 11.0 25.0 26.0 11.4 55.0 160.0 52.0 40.0 160.0 DAY 21 14 8 14 17 5 21 14 24 13 16 23 DAY WITH THUNDER STORM 0 0 0 3 5 1 0 0 1 3 3 0 16 DAYS WITH SNOW OR SLEET 0 5 0 0 0 0 0 0 0 0 0 2 7 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 360 360 360 360 360 360 360 360 360 270 270 225 360 PREVAILING WIND SPEED(KNOTS) 4.7 6.0 5.4 2.6 2.1 5.1 3.3 2.7 5.3 2.1 2.6 1.8 4.7 PREVAILING WIND PERCENT 19.8 27.4 29.6 22.6 20.6 20.1 18.1 21.1 18.0 13.4 20.1 20.2 20.0 CALMS PERCENT OF WIND 24.3 21.1 17.0 18.0 23.5 17.6 19.0 15.8 18.0 35.2 21.3 26.7 21.5 NO. OF WIND OBSERVATION 247 223 247 239 247 239 248 247 239 247 239 247 2909 VECTOR WIND DIRECTION (MEAN) 322 330 340 40 34 18 18 331 7 6 322 315 346 VECTOR WIND MAGNITUDE(KNOTS) 1.3 2.4 2.4 0.9 0.7 1.3 0.8 0.7 1.3 0.8 2.2 0.9 1.2 WIND STEADINESES (MEAN %) 54.2 72.7 68.6 47.4 38.9 44.8 38.1 35.0 43.3 40.0 59.5 32.1 46.2 WIND SPEED (MEAN KNOTS) 2.4 3.3 3.5 1.9 1.8 2.9 2.1 2.0 3.0 2.0 3.7 2.8 2.6 FASTEST WIND DIRECTION 310 340 310 360 20 360 20 360 340 20 310 310 340 FASTEST WIND SPEED (KNOTS) 27 34 29 11 14 29 15 11 24 27 22 21 34 DAY 20 16 28 12 14 3 24 27 23 22 23 23 DAYS WITH SKY CLEAR (0-2)/8 10 2 6 3 9 18 12 23 6 10 5 9 113 DAYS WITH P.CLOUDY (3-6)/8 13 6 6 11 10 6 13 4 8 7 7 11 102 DAYS WITH CLOUDY (7-8)/8 8 20 19 16 12 6 6 4 16 14 18 11 150 DAYS WITH VISIBILITY =< 2 KM 5 5 6 1 2 3 1 0 9 5 8 4 49 DURATION OF SUNSHINE HOURS 151.5 65.4 105.1 130.6 199.5 251.5 207.6 256.0 125.7 145.4 101.6 141.6 1881.5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1022.3 1024.2 1019.8 1017.6 1017.9 1015.5 1013.2 1012.2 1017.5 1022.9 1022.1 1020.0 1018.8 MAX. QFE PRESSURE IN HPA 1033.1 1038.3 1032.0 1030.6 1026.6 1025.0 1021.6 1017.2 1029.0 1031.2 1032.2 1031.8 1038.3 DAY-HOUR 26- 6 3- 6 1- 0 13- 6 3- 6 5- 9 22- 9 15- 6 24-21 14-18 30- 6 11-21 MIN. QFE PRESSURE IN HPA 1008.2 1005.1 1006.6 1001.5 1007.4 1002.2 1008.8 1006.5 1007.6 1010.3 1010.5 1001.3 1001.3 DAY-HOUR 15-12 24- 0 17- 3 25- 3 27- 9 22-15 4-15 20-15 17-15 11- 3 22-12 22-21 MEAN QNH PRESSURE IN HPA 1018.9 1020.7 1016.3 1014.1 1014.4 1012.1 1009.7 1008.8 1014.1 1019.5 1018.6 1016.5 1015.3 MAX. QNH PRESSURE IN HPA 1029.6 1034.8 1028.5 1027.1 1023.1 1021.5 1018.1 1013.7 1025.5 1027.7 1028.7 1028.3 1034.8 DAY-HOUR 26- 6 3- 6 1- 0 13- 6 3- 6 5- 9 22- 9 15- 6 24-21 14-18 30- 6 11-21 MIN. QNH PRESSURE IN HPA 1004.8 1001.7 1003.2 998.1 1004.0 998.8 1005.4 1003.1 1004.2 1006.9 1007.1 997.9 997.9 DAY-HOUR 15-12 24- 0 17- 3 25- 3 27- 9 22-15 4-15 20-15 17-15 11- 3 22-12 22-21 MEAN QFF PRESSURE IN HPA 1019.1 1020.9 1016.5 1014.3 1014.8 1012.4 1010.1 1009.2 1014.5 1019.8 1018.9 1016.7 1015.6 MAX. QFF PRESSURE IN HPA 1029.8 1034.9 1028.7 1027.4 1023.5 1021.8 1018.6 1014.2 1025.8 1028.0 1028.9 1028.6 1034.9 DAY-HOUR 26- 6 3- 6 1- 0 13- 6 3- 9 5- 9 22- 9 15- 6 24-21 14-18 30- 6 11-21 MIN. QFF PRESSURE IN HPA 1005.1 1001.9 1003.4 998.4 1004.4 999.2 1005.8 1003.5 1004.6 1007.2 1007.4 998.2 998.2 DAY-HOUR 15-15 24- 0 17- 3 25- 3 27-12 22-15 4-15 20-15 17-15 11- 3 22-12 22-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1022.6 1023.7 1019.6 1017.3 1017.5 1015.5 1013.1 1012.2 1017.6 1022.5 1022.0 1020.3 1018.7 MAX. QFE PRESSURE IN HPA 1031.3 1037.1 1032.0 1029.8 1025.6 1022.2 1019.5 1016.5 1028.4 1030.7 1031.5 1031.8 1037.1 DAY 1 3 1 13 3 6 23 15 25 15 30 12 MIN. QFE PRESSURE IN HPA 1011.2 1005.1 1006.8 1002.6 1008.1 1008.7 1009.3 1008.3 1008.4 1010.5 1011.6 1006.9 1002.6 DAY 16 24 17 25 27 23 7 20 18 11 23 23 MEAN QNH PRESSURE IN HPA 1019.1 1020.2 1016.1 1013.8 1014.0 1012.1 1009.7 1008.7 1014.1 1019.1 1018.5 1016.9 1015.2 MAX. QNH PRESSURE IN HPA 1027.8 1033.6 1028.5 1026.3 1022.1 1018.7 1016.0 1013.0 1024.9 1027.2 1028.0 1028.3 1033.6 DAY 1 3 1 13 3 6 23 15 25 15 30 12 MIN. QNH PRESSURE IN HPA 1007.8 1001.7 1003.4 999.2 1004.7 1005.3 1005.9 1004.9 1005.0 1007.1 1008.2 1003.5 999.2 DAY 16 24 17 25 27 23 7 20 18 11 23 23 MEAN QFF PRESSURE IN HPA 1019.4 1020.4 1016.4 1014.1 1014.4 1012.5 1010.1 1009.2 1014.5 1019.4 1018.8 1017.1 1015.5 MAX. QFF PRESSURE IN HPA 1028.0 1033.7 1028.7 1026.6 1022.5 1019.0 1016.5 1013.5 1025.2 1027.5 1028.2 1028.6 1033.7 DAY 1 3 1 13 3 6 23 16 25 15 30 12 MIN. QFF PRESSURE IN HPA 1008.1 1001.9 1003.6 999.5 1005.1 1005.7 1006.3 1005.3 1005.4 1007.4 1008.5 1003.8 999.5 DAY 16 24 17 25 27 23 7 20 18 11 23 23 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1022.5 1023.9 1019.8 1017.7 1017.9 1015.9 1013.5 1012.7 1017.7 1022.8 1022.1 1020.0 1018.9 MAX. QFE PRESSURE IN HPA 1031.9 1037.4 1031.5 1030.0 1026.4 1022.8 1020.1 1017.1 1028.1 1030.5 1031.9 1031.7 1037.4 DAY 26 3 1 13 3 5 22 15 25 15 30 12 MIN. QFE PRESSURE IN HPA 1011.8 1005.4 1006.6 1001.5 1008.1 1009.1 1009.5 1008.5 1008.4 1010.3 1013.1 1007.9 1001.5 DAY 16 24 17 25 27 23 10 20 18 11 22 4 MEAN QNH PRESSURE IN HPA 1019.0 1020.4 1016.3 1014.2 1014.4 1012.4 1010.0 1009.2 1014.3 1019.3 1018.6 1016.5 1015.4 MAX. QNH PRESSURE IN HPA 1028.4 1033.9 1028.0 1026.5 1022.9 1019.3 1016.6 1013.6 1024.6 1027.0 1028.4 1028.2 1033.9 DAY 26 3 1 13 3 5 22 15 25 15 30 12 MIN. QNH PRESSURE IN HPA 1008.4 1002.0 1003.2 998.1 1004.7 1005.7 1006.1 1005.1 1005.0 1006.9 1009.7 1004.5 998.1 DAY 16 24 17 25 27 23 10 20 18 11 22 4 MEAN QFF PRESSURE IN HPA 1019.3 1020.6 1016.6 1014.5 1014.8 1012.8 1010.5 1009.7 1014.7 1019.7 1018.9 1016.8 1015.7 MAX. QFF PRESSURE IN HPA 1028.6 1034.0 1028.2 1026.8 1023.2 1019.6 1017.1 1014.1 1024.9 1027.3 1028.6 1028.5 1034.0 DAY 26 3 1 13 3 5 22 15 25 15 30 12 MIN. QFF PRESSURE IN HPA 1008.7 1002.2 1003.4 998.4 1005.1 1006.1 1006.5 1005.5 1005.4 1007.2 1010.0 1004.7 998.4 DAY 16 24 17 25 27 23 10 20 18 11 22 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1023.3 1024.7 1020.5 1018.3 1018.3 1016.1 1013.7 1012.9 1018.0 1023.6 1022.6 1020.5 1019.4 MAX. QFE PRESSURE IN HPA 1033.1 1038.3 1031.5 1030.6 1026.6 1024.6 1021.3 1017.2 1028.1 1031.1 1032.2 1031.7 1038.3 DAY 26 3 1 13 3 5 22 15 25 15 30 12 MIN. QFE PRESSURE IN HPA 1010.9 1007.4 1009.7 1002.1 1008.1 1009.0 1009.5 1008.6 1009.1 1010.3 1012.5 1008.1 1002.1 DAY 15 24 17 25 27 22 10 20 18 11 22 4 MEAN QNH PRESSURE IN HPA 1019.8 1021.2 1017.1 1014.8 1014.8 1012.6 1010.3 1009.5 1014.6 1020.1 1019.2 1017.1 1015.9 MAX. QNH PRESSURE IN HPA 1029.6 1034.8 1028.0 1027.1 1023.1 1021.1 1017.8 1013.7 1024.6 1027.6 1028.7 1028.2 1034.8 DAY 26 3 1 13 3 5 22 15 25 15 30 12 MIN. QNH PRESSURE IN HPA 1007.5 1004.0 1006.3 998.7 1004.7 1005.6 1006.1 1005.2 1005.7 1006.9 1009.1 1004.7 998.7 DAY 15 24 17 25 27 22 10 20 18 11 22 4 MEAN QFF PRESSURE IN HPA 1020.0 1021.4 1017.3 1015.1 1015.2 1013.0 1010.7 1009.9 1014.9 1020.4 1019.5 1017.3 1016.2 MAX. QFF PRESSURE IN HPA 1029.8 1034.9 1028.2 1027.4 1023.4 1021.4 1018.3 1014.2 1024.9 1027.9 1028.9 1028.5 1034.9 DAY 26 3 1 13 3 5 22 15 25 15 30 12 MIN. QFF PRESSURE IN HPA 1007.8 1004.2 1006.5 999.0 1005.1 1006.0 1006.5 1005.6 1006.1 1007.2 1009.4 1004.9 999.0 DAY 15 24 17 25 27 22 10 20 18 11 22 4 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1022.7 1024.6 1020.2 1018.1 1018.1 1015.7 1013.4 1012.5 1017.6 1023.3 1022.3 1019.8 1019.0 MAX. QFE PRESSURE IN HPA 1032.8 1037.4 1030.2 1030.3 1026.6 1025.0 1021.6 1017.1 1027.5 1030.6 1031.5 1030.6 1037.4 DAY 26 3 1 12 3 5 22 15 24 15 30 16 MIN. QFE PRESSURE IN HPA 1009.6 1007.6 1010.9 1003.0 1007.4 1007.0 1009.5 1007.7 1008.8 1010.4 1011.7 1006.4 1003.0 DAY 15 24 17 25 27 22 10 20 17 11 22 22 MEAN QNH PRESSURE IN HPA 1019.3 1021.2 1016.7 1014.6 1014.7 1012.3 1010.0 1009.1 1014.1 1019.9 1018.8 1016.3 1015.6 MAX. QNH PRESSURE IN HPA 1029.3 1033.9 1026.7 1026.8 1023.1 1021.5 1018.1 1013.6 1024.0 1027.1 1028.0 1027.1 1033.9 DAY 26 3 1 12 3 5 22 15 24 15 30 16 MIN. QNH PRESSURE IN HPA 1006.2 1004.2 1007.5 999.6 1004.0 1003.6 1006.1 1004.3 1005.4 1007.0 1008.3 1003.0 999.6 DAY 15 24 17 25 27 22 10 20 17 11 22 22 MEAN QFF PRESSURE IN HPA 1019.2 1021.3 1016.6 1014.6 1015.1 1012.7 1010.4 1009.6 1014.6 1020.4 1019.2 1016.3 1015.8 MAX. QFF PRESSURE IN HPA 1029.5 1034.0 1026.5 1027.1 1023.5 1021.8 1018.6 1014.1 1024.3 1027.4 1028.2 1027.4 1034.0 DAY 26 3 31 12 3 5 22 15 24 15 30 16 MIN. QFF PRESSURE IN HPA 1006.5 1004.4 1007.7 999.9 1004.4 1004.0 1006.5 1004.7 1005.8 1007.4 1008.6 1003.3 999.9 DAY 15 24 25 25 27 22 10 20 17 11 22 22 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1021.5 1023.9 1019.3 1017.3 1017.5 1015.1 1012.7 1011.9 1016.8 1022.8 1021.5 1019.0 1018.3 MAX. QFE PRESSURE IN HPA 1031.0 1036.4 1029.3 1030.3 1026.0 1023.7 1021.1 1016.4 1027.5 1030.6 1031.0 1030.3 1036.4 DAY 26 3 31 12 3 5 22 15 24 22 30 16 MIN. QFE PRESSURE IN HPA 1008.2 1009.2 1009.7 1003.0 1007.4 1003.7 1009.0 1007.2 1008.0 1010.5 1010.5 1003.2 1003.0 DAY 15 24 25 25 27 22 7 20 17 11 22 22 MEAN QNH PRESSURE IN HPA 1018.0 1020.4 1015.9 1013.9 1014.1 1011.6 1009.3 1008.4 1013.4 1019.3 1018.1 1015.5 1014.8 MAX. QNH PRESSURE IN HPA 1027.5 1032.9 1025.8 1026.8 1022.5 1020.2 1017.6 1012.9 1024.0 1027.1 1027.5 1026.8 1032.9 DAY 26 3 31 12 3 5 22 15 24 22 30 16 MIN. QNH PRESSURE IN HPA 1004.8 1005.8 1006.3 999.6 1004.0 1000.3 1005.6 1003.8 1004.6 1007.1 1007.1 999.8 999.6 DAY 15 24 25 25 27 22 7 20 17 11 22 22 MEAN QFF PRESSURE IN HPA 1018.2 1020.6 1016.1 1014.1 1014.4 1012.0 1009.7 1008.9 1013.8 1019.6 1018.4 1015.8 1015.1 MAX. QFF PRESSURE IN HPA 1027.7 1033.0 1026.0 1027.1 1022.9 1020.5 1018.1 1013.4 1024.3 1027.4 1027.7 1027.0 1033.0 DAY 26 3 31 12 3 5 22 15 24 22 30 16 MIN. QFF PRESSURE IN HPA 1005.1 1006.0 1006.5 999.9 1004.4 1000.7 1006.0 1004.2 1005.0 1007.5 1007.4 1000.1 999.9 DAY 15 24 25 25 27 22 7 20 17 11 22 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1021.8 1024.3 1019.4 1017.2 1017.6 1014.7 1012.4 1011.5 1016.8 1022.8 1021.7 1019.8 1018.3 MAX. QFE PRESSURE IN HPA 1030.6 1035.6 1029.3 1030.1 1025.3 1023.6 1020.2 1016.1 1027.8 1031.1 1030.9 1030.0 1035.6 DAY 26 3 30 12 3 5 22 15 24 22 30 11 MIN. QFE PRESSURE IN HPA 1008.2 1010.5 1009.5 1003.7 1007.8 1002.2 1008.8 1006.5 1007.6 1011.3 1010.7 1003.1 1002.2 DAY 15 23 25 20 27 22 4 20 17 11 22 22 MEAN QNH PRESSURE IN HPA 1018.3 1020.8 1015.9 1013.7 1014.1 1011.2 1009.0 1008.1 1013.4 1019.3 1018.2 1016.3 1014.9 MAX. QNH PRESSURE IN HPA 1027.1 1032.1 1025.8 1026.6 1021.8 1020.1 1016.7 1012.6 1024.3 1027.6 1027.4 1026.5 1032.1 DAY 26 3 30 12 3 5 22 15 24 22 30 11 MIN. QNH PRESSURE IN HPA 1004.8 1007.1 1006.1 1000.3 1004.4 998.8 1005.4 1003.1 1004.2 1007.9 1007.3 999.7 998.8 DAY 15 23 25 20 27 22 4 20 17 11 22 22 MEAN QFF PRESSURE IN HPA 1018.6 1021.0 1016.1 1014.0 1014.5 1011.6 1009.4 1008.5 1013.8 1019.7 1018.5 1016.6 1015.2 MAX. QFF PRESSURE IN HPA 1027.3 1032.2 1026.0 1026.9 1022.2 1020.4 1017.2 1013.1 1024.6 1027.9 1027.6 1026.8 1032.2 DAY 26 3 30 12 3 5 22 15 24 22 30 11 MIN. QFF PRESSURE IN HPA 1005.1 1007.3 1006.3 1000.6 1004.8 999.2 1005.8 1003.5 1004.6 1008.2 1007.6 1000.0 999.2 DAY 15 23 25 20 27 22 4 20 17 11 22 22 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1022.2 1024.9 1020.1 1017.6 1018.2 1015.4 1013.2 1012.2 1017.8 1023.1 1022.4 1020.3 1018.9 MAX. QFE PRESSURE IN HPA 1030.4 1036.6 1030.2 1030.4 1025.6 1023.5 1020.5 1017.0 1028.8 1031.2 1031.8 1031.4 1036.6 DAY 1 27 11 12 2 5 22 15 24 14 30 11 MIN. QFE PRESSURE IN HPA 1009.2 1008.3 1010.0 1003.7 1010.1 1003.8 1009.1 1008.0 1008.1 1012.7 1011.3 1001.8 1001.8 DAY 15 23 25 24 26 3 4 20 17 10 22 22 MEAN QNH PRESSURE IN HPA 1018.8 1021.4 1016.7 1014.1 1014.7 1011.9 1009.8 1008.8 1014.4 1019.6 1019.0 1016.8 1015.5 MAX. QNH PRESSURE IN HPA 1026.9 1033.1 1026.7 1026.9 1022.1 1020.0 1017.0 1013.5 1025.3 1027.7 1028.3 1027.9 1033.1 DAY 1 27 11 12 2 5 22 15 24 14 30 11 MIN. QNH PRESSURE IN HPA 1005.8 1004.9 1006.6 1000.3 1006.7 1000.4 1005.7 1004.6 1004.7 1009.3 1007.9 998.4 998.4 DAY 15 23 25 24 26 3 4 20 17 10 22 22 MEAN QFF PRESSURE IN HPA 1019.0 1021.6 1016.9 1014.4 1015.1 1012.3 1010.2 1009.2 1014.8 1019.9 1019.3 1017.1 1015.8 MAX. QFF PRESSURE IN HPA 1027.1 1033.3 1026.9 1027.2 1022.4 1020.3 1017.5 1014.0 1025.6 1028.0 1028.5 1028.2 1033.3 DAY 1 27 11 12 2 5 22 15 24 14 30 11 MIN. QFF PRESSURE IN HPA 1006.1 1005.1 1006.8 1000.6 1007.1 1000.8 1006.1 1005.0 1005.1 1009.6 1008.2 998.7 998.7 DAY 15 23 25 24 26 3 4 20 17 10 22 22 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1022.2 1024.0 1019.5 1017.2 1018.1 1015.8 1013.3 1012.2 1017.9 1022.9 1022.1 1020.1 1018.8 MAX. QFE PRESSURE IN HPA 1030.3 1036.2 1030.9 1030.4 1025.6 1023.2 1020.5 1016.8 1029.0 1031.0 1031.0 1031.8 1036.2 DAY 1 2 11 12 2 5 22 15 24 14 29 11 MIN. QFE PRESSURE IN HPA 1009.9 1005.3 1008.4 1003.0 1009.5 1008.7 1009.4 1008.3 1008.4 1011.5 1011.3 1001.3 1001.3 DAY 15 23 16 24 26 22 4 19 17 10 22 22 MEAN QNH PRESSURE IN HPA 1018.7 1020.6 1016.1 1013.8 1014.7 1012.4 1009.9 1008.8 1014.5 1019.4 1018.7 1016.7 1015.3 MAX. QNH PRESSURE IN HPA 1026.8 1032.7 1027.4 1026.9 1022.1 1019.7 1017.0 1013.3 1025.5 1027.5 1027.5 1028.3 1032.7 DAY 1 2 11 12 2 5 22 15 24 14 29 11 MIN. QNH PRESSURE IN HPA 1006.5 1001.9 1005.0 999.6 1006.1 1005.3 1006.0 1004.9 1005.0 1008.1 1007.9 997.9 997.9 DAY 15 23 16 24 26 22 4 19 17 10 22 22 MEAN QFF PRESSURE IN HPA 1019.0 1020.8 1016.3 1014.1 1015.0 1012.8 1010.3 1009.2 1014.9 1019.7 1019.0 1016.9 1015.7 MAX. QFF PRESSURE IN HPA 1027.1 1032.8 1027.6 1027.1 1022.5 1020.0 1017.5 1013.8 1025.8 1027.8 1027.7 1028.6 1032.8 DAY 1 2 11 12 2 5 22 15 24 14 29 11 MIN. QFF PRESSURE IN HPA 1006.9 1002.1 1005.2 999.9 1006.5 1005.7 1006.4 1005.3 1005.4 1008.4 1008.2 998.2 998.2 DAY 15 23 16 24 26 22 4 19 17 10 22 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 9.3 6.6 9.2 12.4 20.1 21.6 25.2 25.5 23.2 19.0 14.0 9.5 16.3 MINIMUN AIR TEMPERATURE (C) 4.6 4.1 5.6 9.7 16.8 18.0 20.8 21.7 18.9 16.3 11.4 6.8 12.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 6 21 23 6 0 0 0 56 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 2 3 0 0 0 0 0 0 0 0 0 0 5 TEMPERATURE RECORDS LOWEST(C) 0.0 -1.0 2.0 6.0 12.0 12.0 15.0 20.0 15.0 11.0 7.0 4.0 -1.0 DAY 23 6 24 26 2 8 13 19 19 28 20 11 MAXIMUM AIR TEMPERATURE (C) 14.3 9.3 12.9 15.2 24.1 25.4 29.4 29.5 27.2 22.5 16.9 12.4 19.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 1 0 0 2 15 16 6 0 0 0 40 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 26.0 16.0 30.0 20.0 28.0 30.0 33.0 32.0 31.0 27.0 20.0 22.0 33.0 DAY 13 27 13 14 20 28 21 8 1 4 7 27 DIF. BETWEEN (MAX.-MIN.) (C) 9.7 5.2 7.3 5.5 7.3 7.4 8.6 7.8 8.3 6.2 5.5 5.6 7.0 MEAN DAILY TEMP. (MDT) (C) 9.5 6.7 9.2 12.4 20.4 21.7 25.1 25.6 23.1 19.4 14.1 9.6 16.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 15.5 53.5 127.0 143.0 65.5 8.0 0.0 0.0 412.5 HEATING DEG. DAYS(BASE 18 0C) 265.0 328.0 272.5 167.0 5.0 9.0 0.0 0.0 0.0 16.0 116.0 260.0 1438.5 DEWPOINT (MEAN C) 3.0 4.0 5.0 9.6 15.9 18.0 20.3 20.9 19.5 16.7 12.2 7.1 12.7 MIXING RATIO (G/KG) 4.82 5.09 5.59 7.45 11.45 13.06 15.10 15.62 14.29 11.95 8.82 6.29 9.96 VAPOUR PRESSURE (HPA) 7.81 8.30 9.10 12.11 18.40 20.87 24.01 24.80 22.80 19.25 14.33 10.23 16.00 SATURATION DEF. (HPA) 4.52 1.52 2.93 2.44 5.46 5.45 8.53 8.24 6.15 3.10 1.76 1.79 4.32 RELATIVE HUMIDITY (MEAN %) 70 85 80 84 79 81 76 76 81 87 89 86 81 RELATIVE HUMIDITY (MAX. %) 86 92 93 92 92 94 92 91 93 95 95 94 92 RELATIVE HUMIDITY (MIN. %) 54 71 61 73 61 67 58 63 65 74 81 75 67 RELATIVE HUMIDITY (MEAN% 03UTC) 73 89 84 90 87 91 89 87 90 89 93 89 88 RELATIVE HUMIDITY (MEAN% 09UTC) 62 77 72 79 66 71 63 66 68 80 84 82 73 RELATIVE HUMIDITY (MEAN% 15UTC) 70 84 81 82 75 75 68 71 75 84 89 87 78 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 83.7 190.0 124.9 83.2 42.1 89.4 29.4 25.4 94.2 301.4 311.1 169.3 1544.1 DAYS WITH PRECIPITATION >=10 3 6 3 5 1 3 1 1 3 8 10 9 53 DAYS WITH PRECIPITATION >= 5 4 6 6 5 4 5 2 2 6 10 13 10 73 DAYS WITH PRECIPITATION >= 1 6 10 10 10 8 5 5 5 7 15 16 12 109 DAYS WITH PRECIPITATION 7 12 14 15 12 7 7 7 9 17 16 15 138 GREATEST DAILY PRECIPITATION 25.0 63.0 49.0 18.0 15.0 46.0 15.0 10.0 32.0 100.0 82.0 29.0 100.0 DAY 22 3 22 25 31 7 12 29 13 27 2 4 DAY WITH THUNDER STORM 0 0 0 0 1 3 1 1 2 2 1 0 11 DAYS WITH SNOW OR SLEET 0 1 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 2 0 1 0 1 0 1 0 0 0 0 0 5 WIND DIRECTION (PREVAILING) 270 315 360 45 45 45 360 360 360 270 270 270 360 PREVAILING WIND SPEED(KNOTS) 4.7 6.1 5.3 3.4 3.3 4.2 4.3 3.5 5.4 2.9 3.1 2.5 5.8 PREVAILING WIND PERCENT 22.3 20.9 17.4 19.2 20.6 23.4 17.4 15.4 20.1 20.2 26.8 34.8 16.7 CALMS PERCENT OF WIND 16.6 20.9 20.2 22.2 22.3 19.2 15.0 17.4 20.9 21.4 23.4 17.0 19.7 NO. OF WIND OBSERVATION 247 230 247 239 247 239 247 247 239 248 239 247 2916 VECTOR WIND DIRECTION (MEAN) 287 329 17 29 12 44 21 18 352 358 320 306 342 VECTOR WIND MAGNITUDE(KNOTS) 2.7 3.2 1.2 1.5 0.9 1.5 0.9 0.7 1.2 1.5 1.9 2.4 1.3 WIND STEADINESES (MEAN %) 54.0 72.7 33.3 53.6 37.5 55.6 37.5 30.4 44.4 45.5 63.3 75.0 40.6 WIND SPEED (MEAN KNOTS) 5.0 4.4 3.6 2.8 2.4 2.7 2.4 2.3 2.7 3.3 3.0 3.2 3.2 FASTEST WIND DIRECTION 230 340 250 80 270 340 340 290 360 20 20 340 340 FASTEST WIND SPEED (KNOTS) 40 43 27 29 16 15 40 11 13 40 17 19 43 DAY 13 3 13 19 30 7 12 18 11 27 20 12 DAYS WITH SKY CLEAR (0-2)/8 13 5 6 7 6 13 19 12 15 2 3 2 103 DAYS WITH P.CLOUDY (3-6)/8 11 7 11 8 12 11 4 11 8 9 3 5 100 DAYS WITH CLOUDY (7-8)/8 7 17 14 15 13 6 8 8 7 20 24 24 163 DAYS WITH VISIBILITY =< 2 KM 4 8 6 5 6 5 4 1 5 6 5 5 60 DURATION OF SUNSHINE HOURS 145.2 98.9 127.9 149.9 185.4 229.8 247.1 202.0 198.2 93.0 66.5 49.4 1793.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1016.7 1023.9 1022.1 1023.1 1019.1 1015.9 1013.5 1012.9 1016.1 1021.9 1024.5 1022.6 1019.4 MAX. QFE PRESSURE IN HPA 1030.0 1039.1 1036.3 1029.5 1026.2 1028.2 1021.9 1019.6 1024.3 1033.9 1034.6 1032.5 1039.1 DAY-HOUR 1- 6 5- 6 26-18 21-18 22-18 7-18 12- 9 19- 9 17- 9 30- 6 21- 9 31- 6 MIN. QFE PRESSURE IN HPA 998.0 1009.9 995.9 1011.8 1008.5 1005.2 1005.4 1003.0 1008.5 1008.5 1016.7 1006.9 995.9 DAY-HOUR 10-12 20-12 13- 0 23-15 20-12 18-21 31-15 16-21 27-15 25- 0 27- 3 27-12 MEAN QNH PRESSURE IN HPA 1013.2 1020.4 1018.6 1019.6 1015.7 1012.5 1010.1 1009.5 1012.6 1018.4 1021.0 1019.1 1015.9 MAX. QNH PRESSURE IN HPA 1026.5 1035.6 1032.8 1026.0 1022.7 1024.7 1018.4 1016.1 1020.8 1030.4 1031.1 1029.0 1035.6 DAY-HOUR 1- 6 5- 6 26-18 21-18 22-18 7-18 12- 9 19- 9 17- 9 30- 6 21- 9 31- 6 MIN. QNH PRESSURE IN HPA 994.6 1006.5 992.5 1008.4 1005.1 1001.8 1002.0 999.6 1005.1 1005.1 1013.2 1003.5 992.5 DAY-HOUR 10-12 20-12 13- 0 23-15 20-12 18-21 31-15 16-21 27-15 25- 0 27- 3 27-12 MEAN QFF PRESSURE IN HPA 1013.4 1020.6 1018.9 1019.9 1016.0 1012.8 1010.5 1010.0 1013.1 1018.8 1021.3 1019.4 1016.2 MAX. QFF PRESSURE IN HPA 1026.8 1035.7 1033.0 1026.3 1023.1 1025.0 1018.8 1016.5 1021.2 1030.7 1031.4 1029.2 1035.7 DAY-HOUR 1- 6 5- 6 26-18 21-18 22-21 7-21 12- 9 19- 9 17- 9 30- 6 21- 9 31- 6 MIN. QFF PRESSURE IN HPA 994.9 1006.7 992.9 1008.6 1005.5 1002.2 1002.4 1000.1 1005.5 1005.4 1013.6 1003.8 992.9 DAY-HOUR 10-12 20-12 13- 0 23-15 20-15 18-21 31-15 16-21 27-15 25- 0 27- 3 27-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1016.7 1023.7 1021.5 1022.7 1018.6 1015.8 1013.4 1012.7 1015.8 1021.6 1024.5 1022.6 1019.1 MAX. QFE PRESSURE IN HPA 1030.0 1038.9 1035.5 1028.7 1024.7 1027.1 1020.3 1018.3 1023.1 1031.3 1032.3 1031.8 1038.9 DAY 20 5 26 1 23 8 13 27 17 30 22 31 MIN. QFE PRESSURE IN HPA 1003.4 1010.6 995.9 1012.2 1010.7 1008.5 1006.0 1003.9 1009.5 1008.5 1017.0 1009.0 995.9 DAY 10 21 13 24 20 24 31 17 28 25 27 11 MEAN QNH PRESSURE IN HPA 1013.2 1020.2 1018.1 1019.3 1015.2 1012.4 1010.0 1009.2 1012.3 1018.1 1021.0 1019.1 1015.7 MAX. QNH PRESSURE IN HPA 1026.5 1035.4 1032.0 1025.2 1021.2 1023.6 1016.8 1014.8 1019.6 1027.8 1028.8 1028.3 1035.4 DAY 20 5 26 1 23 8 13 27 17 30 22 31 MIN. QNH PRESSURE IN HPA 1000.0 1007.2 992.5 1008.8 1007.3 1005.1 1002.6 1000.5 1006.1 1005.1 1013.5 1005.6 992.5 DAY 10 21 13 24 20 24 31 17 28 25 27 11 MEAN QFF PRESSURE IN HPA 1013.5 1020.4 1018.3 1019.6 1015.5 1012.8 1010.4 1009.7 1012.7 1018.5 1021.3 1019.4 1016.0 MAX. QFF PRESSURE IN HPA 1026.7 1035.6 1032.2 1025.5 1021.6 1023.9 1017.2 1015.3 1020.0 1028.1 1029.1 1028.6 1035.6 DAY 20 5 26 1 23 8 13 27 17 30 22 31 MIN. QFF PRESSURE IN HPA 1000.3 1007.4 992.9 1009.0 1007.7 1005.5 1003.0 1001.0 1006.5 1005.4 1013.9 1005.9 992.9 DAY 10 21 13 24 20 24 31 17 28 25 27 11 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1016.7 1023.6 1021.9 1023.0 1019.1 1016.4 1013.9 1013.2 1016.1 1021.8 1024.4 1022.3 1019.4 MAX. QFE PRESSURE IN HPA 1029.2 1038.3 1035.9 1028.3 1025.4 1027.1 1020.1 1018.8 1023.3 1031.8 1032.7 1031.8 1038.3 DAY 20 5 26 1 23 8 13 27 17 30 21 31 MIN. QFE PRESSURE IN HPA 1001.2 1010.8 997.9 1012.9 1011.5 1009.7 1007.2 1005.4 1010.6 1008.5 1016.7 1009.1 997.9 DAY 10 20 13 24 20 24 31 16 9 25 27 27 MEAN QNH PRESSURE IN HPA 1013.3 1020.1 1018.4 1019.5 1015.6 1012.9 1010.4 1009.8 1012.6 1018.4 1020.9 1018.9 1015.9 MAX. QNH PRESSURE IN HPA 1025.7 1034.8 1032.4 1024.8 1021.9 1023.6 1016.6 1015.3 1019.8 1028.3 1029.2 1028.3 1034.8 DAY 20 5 26 1 23 8 13 27 17 30 21 31 MIN. QNH PRESSURE IN HPA 997.8 1007.4 994.5 1009.5 1008.1 1006.3 1003.8 1002.0 1007.2 1005.1 1013.2 1005.7 994.5 DAY 10 20 13 24 20 24 31 16 9 25 27 27 MEAN QFF PRESSURE IN HPA 1013.5 1020.4 1018.6 1019.8 1016.0 1013.3 1010.8 1010.2 1013.0 1018.7 1021.2 1019.1 1016.2 MAX. QFF PRESSURE IN HPA 1025.9 1034.9 1032.6 1025.1 1022.3 1023.9 1017.0 1015.8 1020.2 1028.6 1029.5 1028.5 1034.9 DAY 20 5 26 6 23 8 13 27 17 30 21 31 MIN. QFF PRESSURE IN HPA 998.1 1007.6 994.9 1009.7 1008.5 1006.7 1004.2 1002.4 1007.6 1005.4 1013.6 1005.9 994.9 DAY 10 20 13 24 20 24 31 16 9 25 27 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1017.5 1024.8 1022.7 1023.7 1019.5 1016.5 1014.2 1013.9 1016.8 1022.7 1025.0 1023.1 1020.0 MAX. QFE PRESSURE IN HPA 1030.0 1039.1 1036.2 1028.9 1025.6 1027.1 1021.3 1019.5 1024.1 1033.9 1034.2 1032.5 1039.1 DAY 1 5 26 27 23 8 12 19 17 30 21 31 MIN. QFE PRESSURE IN HPA 1000.0 1010.8 1002.2 1013.4 1010.8 1010.2 1007.5 1006.0 1011.1 1010.8 1018.7 1008.9 1000.0 DAY 10 20 13 23 20 5 31 16 9 25 27 27 MEAN QNH PRESSURE IN HPA 1014.0 1021.4 1019.3 1020.2 1016.0 1013.1 1010.8 1010.5 1013.3 1019.2 1021.6 1019.6 1016.6 MAX. QNH PRESSURE IN HPA 1026.5 1035.6 1032.7 1025.4 1022.1 1023.6 1017.8 1016.0 1020.6 1030.4 1030.7 1029.0 1035.6 DAY 1 5 26 27 23 8 12 19 17 30 21 31 MIN. QNH PRESSURE IN HPA 996.6 1007.4 998.8 1010.0 1007.4 1006.8 1004.1 1002.6 1007.7 1007.4 1015.2 1005.5 996.6 DAY 10 20 13 23 20 5 31 16 9 25 27 27 MEAN QFF PRESSURE IN HPA 1014.3 1021.6 1019.5 1020.5 1016.4 1013.5 1011.2 1010.9 1013.7 1019.6 1021.9 1019.9 1016.9 MAX. QFF PRESSURE IN HPA 1026.8 1035.7 1032.9 1025.7 1022.5 1023.9 1018.2 1016.5 1021.0 1030.7 1031.0 1029.2 1035.7 DAY 1 5 26 27 23 8 12 27 17 30 21 31 MIN. QFF PRESSURE IN HPA 996.9 1007.6 999.2 1010.2 1007.8 1007.2 1004.5 1003.0 1008.1 1007.7 1015.6 1005.7 996.9 DAY 10 20 13 24 20 5 31 16 9 25 27 27 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1017.2 1024.4 1022.5 1023.6 1019.5 1016.4 1014.0 1013.5 1016.6 1022.5 1024.7 1022.6 1019.8 MAX. QFE PRESSURE IN HPA 1029.8 1038.9 1036.1 1029.0 1025.6 1026.8 1021.9 1019.6 1024.3 1033.7 1034.6 1032.2 1038.9 DAY 1 5 26 21 23 8 12 19 17 30 21 31 MIN. QFE PRESSURE IN HPA 1000.7 1010.8 1002.8 1013.4 1010.1 1010.1 1007.8 1005.4 1010.7 1011.6 1018.7 1007.8 1000.7 DAY 10 20 13 23 20 19 31 16 9 25 27 27 MEAN QNH PRESSURE IN HPA 1013.7 1020.9 1019.0 1020.1 1016.1 1013.0 1010.6 1010.1 1013.1 1019.0 1021.3 1019.1 1016.3 MAX. QNH PRESSURE IN HPA 1026.3 1035.4 1032.6 1025.5 1022.1 1023.3 1018.4 1016.1 1020.8 1030.2 1031.1 1028.7 1035.4 DAY 1 5 26 21 23 8 12 19 17 30 21 31 MIN. QNH PRESSURE IN HPA 997.3 1007.4 999.4 1010.0 1006.7 1006.7 1004.4 1002.0 1007.3 1008.2 1015.2 1004.4 997.3 DAY 10 20 13 23 20 19 31 16 9 25 27 27 MEAN QFF PRESSURE IN HPA 1013.6 1020.9 1019.5 1020.3 1016.4 1013.1 1011.2 1010.7 1013.6 1019.3 1021.6 1019.5 1016.6 MAX. QFF PRESSURE IN HPA 1025.8 1035.6 1032.8 1025.8 1022.5 1023.6 1018.8 1016.5 1021.2 1030.5 1031.4 1028.9 1035.6 DAY 19 5 26 21 23 8 12 19 17 30 21 31 MIN. QFF PRESSURE IN HPA 997.6 1007.6 999.8 1010.2 1007.1 1007.1 1004.8 1002.5 1007.7 1008.5 1015.6 1004.7 997.6 DAY 10 20 13 23 20 19 31 16 27 25 27 27 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1016.1 1023.4 1021.7 1022.8 1019.1 1015.8 1013.2 1012.5 1015.7 1021.5 1023.9 1022.0 1019.0 MAX. QFE PRESSURE IN HPA 1028.8 1038.0 1035.7 1028.9 1025.1 1026.3 1021.1 1018.2 1023.8 1032.2 1034.0 1031.7 1038.0 DAY 1 5 26 21 22 7 12 18 17 30 21 31 MIN. QFE PRESSURE IN HPA 998.0 1009.9 1004.9 1012.2 1008.5 1008.8 1006.3 1004.1 1009.0 1011.8 1017.9 1006.9 998.0 DAY 10 20 12 23 20 18 31 16 27 25 28 27 MEAN QNH PRESSURE IN HPA 1012.7 1020.0 1018.3 1019.3 1015.6 1012.3 1009.7 1009.0 1012.3 1018.0 1020.4 1018.5 1015.5 MAX. QNH PRESSURE IN HPA 1025.3 1034.5 1032.2 1025.4 1021.6 1022.8 1017.6 1014.7 1020.3 1028.7 1030.5 1028.2 1034.5 DAY 1 5 26 21 22 7 12 18 17 30 21 31 MIN. QNH PRESSURE IN HPA 994.6 1006.5 1001.5 1008.8 1005.1 1005.4 1002.9 1000.7 1005.6 1008.4 1014.4 1003.5 994.6 DAY 10 20 12 23 20 18 31 16 27 25 28 27 MEAN QFF PRESSURE IN HPA 1012.9 1020.2 1018.5 1019.6 1016.0 1012.7 1010.2 1009.5 1012.7 1018.4 1020.7 1018.7 1015.8 MAX. QFF PRESSURE IN HPA 1025.6 1034.7 1032.4 1025.7 1022.0 1023.1 1018.0 1015.2 1020.7 1029.0 1030.8 1028.4 1034.7 DAY 1 5 26 21 22 7 12 18 17 30 21 31 MIN. QFF PRESSURE IN HPA 994.9 1006.7 1001.8 1009.0 1005.5 1005.8 1003.3 1001.1 1006.0 1008.7 1014.7 1003.8 994.9 DAY 10 20 12 23 20 18 31 16 27 25 28 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1016.5 1023.7 1022.0 1022.8 1019.0 1015.2 1012.7 1012.1 1015.6 1021.4 1024.2 1022.5 1019.0 MAX. QFE PRESSURE IN HPA 1028.8 1038.5 1035.6 1029.1 1025.1 1026.9 1020.4 1018.1 1023.3 1031.7 1034.0 1031.7 1038.5 DAY 1 4 26 21 22 7 12 29 17 30 21 31 MIN. QFE PRESSURE IN HPA 1002.0 1010.7 1004.5 1011.8 1008.5 1006.2 1005.4 1003.2 1008.5 1012.4 1017.9 1008.1 1002.0 DAY 13 20 12 23 20 18 31 16 27 25 28 10 MEAN QNH PRESSURE IN HPA 1013.0 1020.2 1018.6 1019.3 1015.5 1011.8 1009.3 1008.7 1012.1 1017.9 1020.7 1019.0 1015.5 MAX. QNH PRESSURE IN HPA 1025.3 1035.0 1032.1 1025.6 1021.6 1023.4 1016.9 1014.6 1019.8 1028.2 1030.5 1028.2 1035.0 DAY 1 4 26 21 22 7 12 29 17 30 21 31 MIN. QNH PRESSURE IN HPA 998.6 1007.3 1001.1 1008.4 1005.1 1002.8 1002.0 999.8 1005.1 1009.0 1014.4 1004.7 998.6 DAY 13 20 12 23 20 18 31 16 27 25 28 10 MEAN QFF PRESSURE IN HPA 1013.3 1020.4 1018.8 1019.6 1015.9 1012.2 1009.7 1009.1 1012.5 1018.3 1021.0 1019.3 1015.8 MAX. QFF PRESSURE IN HPA 1025.6 1035.2 1032.3 1025.9 1022.0 1023.7 1017.3 1015.1 1020.2 1028.5 1030.8 1028.4 1035.2 DAY 1 4 26 21 22 7 12 29 17 30 21 31 MIN. QFF PRESSURE IN HPA 998.9 1007.5 1001.4 1008.6 1005.5 1003.2 1002.4 1000.2 1005.5 1009.3 1014.7 1004.9 998.9 DAY 13 20 12 23 20 18 31 16 27 25 28 10 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1016.7 1023.8 1022.5 1023.2 1019.5 1015.8 1013.3 1012.8 1016.3 1021.8 1024.7 1023.0 1019.5 MAX. QFE PRESSURE IN HPA 1029.8 1038.8 1036.3 1029.5 1026.2 1028.2 1020.9 1018.7 1023.9 1031.2 1034.0 1032.2 1038.8 DAY 19 4 26 21 22 7 12 18 13 30 21 31 MIN. QFE PRESSURE IN HPA 1005.8 1011.1 1001.5 1012.6 1010.3 1005.4 1005.6 1003.2 1008.5 1011.3 1017.8 1008.8 1001.5 DAY 6 20 12 23 20 18 31 16 27 24 28 10 MEAN QNH PRESSURE IN HPA 1013.3 1020.4 1019.0 1019.7 1016.0 1012.4 1009.8 1009.4 1012.8 1018.4 1021.2 1019.6 1016.0 MAX. QNH PRESSURE IN HPA 1026.3 1035.3 1032.8 1026.0 1022.7 1024.7 1017.4 1015.2 1020.4 1027.7 1030.5 1028.7 1035.3 DAY 19 4 26 21 22 7 12 18 13 30 21 31 MIN. QNH PRESSURE IN HPA 1002.4 1007.7 998.1 1009.2 1006.9 1002.0 1002.2 999.8 1005.1 1007.9 1014.3 1005.4 998.1 DAY 6 20 12 23 20 18 31 16 27 24 28 10 MEAN QFF PRESSURE IN HPA 1013.5 1020.9 1019.2 1020.0 1016.4 1012.8 1010.3 1009.8 1013.2 1018.7 1021.5 1019.8 1016.3 MAX. QFF PRESSURE IN HPA 1026.5 1035.5 1033.0 1026.3 1023.1 1025.0 1017.8 1015.7 1020.8 1028.0 1030.8 1028.9 1035.5 DAY 19 4 26 21 22 7 12 18 13 30 21 31 MIN. QFF PRESSURE IN HPA 1002.7 1007.9 998.5 1009.4 1007.3 1002.4 1002.7 1000.3 1005.5 1008.2 1014.6 1005.6 998.5 DAY 6 20 12 23 20 18 31 16 27 24 28 10 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1015.9 1023.7 1021.9 1023.0 1019.0 1015.7 1013.7 1012.9 1016.1 1021.8 1024.7 1022.8 1019.3 MAX. QFE PRESSURE IN HPA 1030.0 1038.9 1036.2 1028.7 1026.2 1028.2 1020.9 1018.7 1024.1 1030.6 1033.2 1031.4 1038.9 DAY 19 4 26 21 22 7 12 18 13 29 21 30 MIN. QFE PRESSURE IN HPA 1004.6 1010.8 996.2 1012.6 1010.8 1005.2 1006.1 1003.0 1008.8 1010.3 1018.0 1008.8 996.2 DAY 6 20 12 23 20 18 30 16 27 24 28 10 MEAN QNH PRESSURE IN HPA 1012.5 1020.3 1018.4 1019.6 1015.5 1012.3 1010.2 1009.5 1012.6 1018.3 1021.2 1019.3 1015.8 MAX. QNH PRESSURE IN HPA 1026.5 1035.4 1032.7 1025.2 1022.7 1024.7 1017.4 1015.2 1020.6 1027.1 1029.7 1027.9 1035.4 DAY 19 4 26 21 22 7 12 18 13 29 21 30 MIN. QNH PRESSURE IN HPA 1001.2 1007.4 992.8 1009.2 1007.4 1001.8 1002.7 999.6 1005.4 1006.9 1014.5 1005.4 992.8 DAY 6 20 12 23 20 18 30 16 27 24 28 10 MEAN QFF PRESSURE IN HPA 1012.7 1020.5 1018.7 1019.8 1015.9 1012.7 1010.7 1009.9 1013.0 1018.7 1021.5 1019.5 1016.1 MAX. QFF PRESSURE IN HPA 1026.7 1035.6 1032.9 1025.5 1023.1 1025.0 1017.8 1015.7 1021.0 1027.4 1030.0 1028.2 1035.6 DAY 19 4 26 21 22 7 12 18 13 29 21 30 MIN. QFF PRESSURE IN HPA 1001.5 1007.6 993.2 1009.4 1007.8 1002.2 1003.1 1000.1 1005.8 1007.2 1014.9 1005.7 993.2 DAY 6 20 12 23 20 18 30 16 27 24 28 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.7 2.5 6.1 11.1 17.1 23.1 24.1 24.8 21.0 17.0 11.2 11.5 14.4 MINIMUN AIR TEMPERATURE (C) 1.6 -0.0 3.7 8.1 13.4 18.8 19.9 20.4 17.0 14.2 7.4 7.9 11.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 12 12 17 3 0 0 0 44 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 15 17 2 0 0 0 0 0 0 0 0 0 34 TEMPERATURE RECORDS LOWEST(C) -2.0 -3.0 0.0 4.0 9.0 14.0 17.0 18.0 13.0 7.0 5.0 4.0 -3.0 DAY 7 11 24 4 7 1 6 9 12 30 11 17 MAXIMUM AIR TEMPERATURE (C) 5.7 4.7 8.0 14.0 20.5 27.0 28.2 28.7 24.9 20.0 15.0 14.8 17.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 3 10 10 4 0 0 0 27 DAYS WITH MAXIMUM TEMP. <= 0 0 1 0 0 0 0 0 0 0 0 0 0 1 TEMPERATURE RECORDS HIGHEST(C) 10.0 12.0 13.0 24.0 26.0 32.0 32.0 31.0 31.0 26.0 20.0 25.0 32.0 DAY 1 2 31 17 21 7 24 5 7 4 8 18 DIF. BETWEEN (MAX.-MIN.) (C) 4.1 4.7 4.3 5.9 7.1 8.2 8.3 8.3 7.9 5.8 7.6 6.9 6.6 MEAN DAILY TEMP. (MDT) (C) 3.7 2.3 5.8 11.0 16.9 22.9 24.0 24.5 21.0 17.1 11.2 11.4 14.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.5 65.5 94.0 110.0 35.0 1.5 0.0 0.0 306.5 HEATING DEG. DAYS(BASE 18 0C) 444.5 438.5 377.0 208.5 48.0 0.0 0.0 0.0 5.5 49.5 205.0 206.0 1982.5 DEWPOINT (MEAN C) 2.2 0.9 4.6 8.6 13.7 19.1 19.2 20.7 17.9 15.0 9.3 8.6 11.6 MIXING RATIO (G/KG) 4.45 4.01 5.26 6.97 9.85 14.04 14.06 15.36 13.00 10.75 7.29 6.97 9.33 VAPOUR PRESSURE (HPA) 7.29 6.58 8.56 11.31 15.87 22.34 22.41 24.46 20.85 17.34 11.87 11.32 15.02 SATURATION DEF. (HPA) 0.79 0.84 0.93 2.11 3.99 6.33 8.11 7.21 4.64 2.28 1.65 2.44 3.44 RELATIVE HUMIDITY (MEAN %) 90 89 90 86 81 80 75 79 84 89 88 85 85 RELATIVE HUMIDITY (MAX. %) 95 94 95 94 93 95 92 92 94 97 96 94 94 RELATIVE HUMIDITY (MIN. %) 84 82 83 74 68 63 58 65 70 78 76 71 73 RELATIVE HUMIDITY (MEAN% 03UTC) 92 90 92 92 89 92 84 90 90 94 94 87 91 RELATIVE HUMIDITY (MEAN% 09UTC) 86 86 89 79 74 68 64 69 75 82 80 79 78 RELATIVE HUMIDITY (MEAN% 15UTC) 89 90 89 84 77 73 68 72 80 87 87 83 82 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 343.4 237.0 159.9 70.3 77.5 158.0 71.2 35.0 400.6 401.1 275.0 69.0 2298.0 DAYS WITH PRECIPITATION >=10 11 9 7 4 2 2 2 1 9 7 7 3 64 DAYS WITH PRECIPITATION >= 5 18 11 11 5 3 2 3 1 10 9 10 6 89 DAYS WITH PRECIPITATION >= 1 20 16 15 11 7 3 5 6 11 18 12 9 133 DAYS WITH PRECIPITATION 21 18 21 16 14 3 7 6 12 21 12 9 160 GREATEST DAILY PRECIPITATION 69.0 51.0 27.0 17.0 29.0 101.0 51.0 26.0 140.0 160.0 78.0 14.0 160.0 DAY 4 9 11 3 27 15 31 9 11 9 9 15 DAY WITH THUNDER STORM 0 0 0 1 4 1 0 3 2 3 2 0 16 DAYS WITH SNOW OR SLEET 9 12 2 0 0 0 0 0 0 0 0 0 23 DAYS WITH DUST 0 0 0 1 0 0 0 0 1 0 0 0 2 WIND DIRECTION (PREVAILING) 315 270 360 90 90 90 90 225 90 270 270 270 360 PREVAILING WIND SPEED(KNOTS) 6.8 3.6 3.3 4.2 6.2 6.9 6.4 1.8 5.8 3.2 4.1 3.0 6.7 PREVAILING WIND PERCENT 29.1 32.3 19.8 28.9 26.0 28.0 17.0 19.0 17.6 17.8 18.4 16.1 16.2 CALMS PERCENT OF WIND 15.4 18.8 23.1 18.8 17.9 24.3 18.6 18.2 18.8 19.4 40.6 19.0 21.0 NO. OF WIND OBSERVATION 247 223 247 239 246 239 247 247 239 247 239 248 2908 VECTOR WIND DIRECTION (MEAN) 321 315 3 52 44 52 34 47 2 349 283 327 357 VECTOR WIND MAGNITUDE(KNOTS) 4.6 4.9 1.1 1.8 2.3 2.5 1.7 1.2 1.6 2.2 0.8 0.4 1.6 WIND STEADINESES (MEAN %) 85.2 86.0 47.8 62.1 59.0 61.0 40.5 37.5 39.0 52.4 34.8 12.5 42.1 WIND SPEED (MEAN KNOTS) 5.4 5.7 2.3 2.9 3.9 4.1 4.2 3.2 4.1 4.2 2.3 3.2 3.8 FASTEST WIND DIRECTION 340 340 50 90 90 50 50 20 310 360 290 50 290 FASTEST WIND SPEED (KNOTS) 29 35 13 13 20 21 25 12 28 30 50 22 50 DAY 25 9 23 22 15 25 18 15 11 29 8 19 DAYS WITH SKY CLEAR (0-2)/8 2 2 0 7 6 21 13 17 12 4 7 4 95 DAYS WITH P.CLOUDY (3-6)/8 2 2 0 4 9 6 8 5 4 7 9 8 64 DAYS WITH CLOUDY (7-8)/8 27 24 31 19 16 3 10 9 14 20 14 19 206 DAYS WITH VISIBILITY =< 2 KM 11 11 6 9 10 8 1 0 9 8 7 4 84 DURATION OF SUNSHINE HOURS 30.2 44.3 4.1 117.2 183.5 285.5 241.1 243.6 147.8 92.9 132.2 80.4 1602.8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1026.3 1027.7 1021.8 1021.1 1019.0 1012.8 1014.5 1015.6 1019.3 1021.4 1025.5 1021.4 1020.5 MAX. QFE PRESSURE IN HPA 1042.4 1039.1 1034.8 1032.4 1027.6 1022.2 1022.1 1023.0 1030.7 1033.0 1033.5 1030.5 1042.4 DAY-HOUR 6- 3 10-18 12- 6 4- 6 21- 9 1- 9 2-21 31- 9 13- 9 26- 6 10- 6 6-18 MIN. QFE PRESSURE IN HPA 1012.5 1012.9 1004.8 996.9 1005.4 1001.3 1001.8 1007.0 1008.1 1005.6 1012.6 1007.9 996.9 DAY-HOUR 19-18 13-12 19-12 17-12 14-15 24- 0 14- 0 3-15 7- 9 29- 3 7- 0 31- 9 MEAN QNH PRESSURE IN HPA 1022.8 1024.2 1018.4 1017.6 1015.5 1009.3 1011.0 1012.2 1015.9 1017.9 1022.0 1017.9 1017.1 MAX. QNH PRESSURE IN HPA 1038.9 1035.6 1031.3 1028.9 1024.1 1018.7 1018.6 1019.5 1027.2 1029.5 1030.0 1027.0 1038.9 DAY-HOUR 6- 3 10-18 12- 6 4- 6 21- 9 1- 9 2-21 31- 9 13- 9 26- 6 10- 6 6-18 MIN. QNH PRESSURE IN HPA 1009.1 1009.5 1001.4 993.5 1002.0 997.9 998.4 1003.6 1004.7 1002.2 1009.2 1004.5 993.5 DAY-HOUR 19-18 13-12 19-12 17-12 14-15 24- 0 14- 0 3-15 7- 9 29- 3 7- 0 31- 9 MEAN QFF PRESSURE IN HPA 1023.0 1024.4 1018.5 1018.0 1015.9 1009.7 1011.5 1012.6 1016.2 1018.2 1022.3 1018.2 1017.4 MAX. QFF PRESSURE IN HPA 1039.0 1035.7 1031.5 1029.1 1024.5 1019.0 1019.0 1020.0 1027.5 1029.8 1030.2 1027.3 1039.0 DAY-HOUR 6- 3 10-18 12- 6 4- 6 21- 9 25-12 2-21 31- 9 13- 9 26- 6 10- 6 6-18 MIN. QFF PRESSURE IN HPA 1009.3 1009.6 1001.6 993.8 1002.3 998.3 998.8 1004.0 1005.1 1002.5 1009.5 1004.8 993.8 DAY-HOUR 19-18 13-12 19-15 17-12 14-15 24- 0 14- 3 3-15 7- 9 29- 3 7- 3 31- 9 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1026.4 1027.2 1021.6 1020.6 1018.7 1012.5 1014.3 1015.4 1019.1 1021.2 1025.2 1021.4 1020.3 MAX. QFE PRESSURE IN HPA 1040.8 1037.8 1034.4 1030.2 1027.1 1021.1 1020.7 1022.0 1029.5 1030.7 1032.3 1030.4 1040.8 DAY 6 11 12 4 28 1 3 31 14 26 10 7 MIN. QFE PRESSURE IN HPA 1012.5 1014.6 1007.4 1002.8 1007.9 1001.3 1001.8 1007.8 1009.0 1007.1 1012.6 1009.4 1001.3 DAY 20 13 20 18 3 24 14 4 7 29 7 31 MEAN QNH PRESSURE IN HPA 1022.9 1023.8 1018.1 1017.1 1015.2 1009.0 1010.9 1012.0 1015.6 1017.8 1021.7 1017.9 1016.8 MAX. QNH PRESSURE IN HPA 1037.3 1034.3 1030.9 1026.7 1023.6 1017.6 1017.2 1018.5 1026.0 1027.2 1028.8 1026.9 1037.3 DAY 6 11 12 4 28 1 3 31 14 26 10 7 MIN. QNH PRESSURE IN HPA 1009.1 1011.2 1004.0 999.4 1004.5 997.9 998.4 1004.4 1005.6 1003.7 1009.2 1006.0 997.9 DAY 20 13 20 18 3 24 14 4 7 29 7 31 MEAN QFF PRESSURE IN HPA 1023.1 1023.9 1018.3 1017.4 1015.5 1009.4 1011.3 1012.4 1016.0 1018.1 1022.0 1018.2 1017.1 MAX. QFF PRESSURE IN HPA 1037.4 1034.4 1031.1 1026.9 1023.9 1018.0 1017.6 1019.0 1026.3 1027.5 1029.0 1027.2 1037.4 DAY 6 11 12 4 28 1 3 31 14 26 18 7 MIN. QFF PRESSURE IN HPA 1009.3 1011.3 1004.2 999.8 1004.8 998.3 998.8 1004.8 1006.0 1004.0 1009.5 1006.2 998.3 DAY 20 13 20 18 3 24 14 4 7 29 7 31 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1026.2 1027.1 1021.9 1020.9 1018.7 1012.9 1014.8 1015.9 1019.4 1021.4 1025.3 1021.2 1020.5 MAX. QFE PRESSURE IN HPA 1042.4 1037.0 1034.4 1031.2 1026.8 1021.8 1020.4 1022.6 1029.7 1031.6 1032.6 1029.9 1042.4 DAY 6 11 12 4 11 1 3 31 13 26 10 7 MIN. QFE PRESSURE IN HPA 1012.7 1013.3 1008.6 1003.8 1008.1 1001.5 1001.8 1009.4 1009.0 1005.6 1012.6 1008.2 1001.5 DAY 20 13 20 17 3 24 14 4 7 29 7 31 MEAN QNH PRESSURE IN HPA 1022.7 1023.6 1018.4 1017.4 1015.3 1009.5 1011.4 1012.5 1015.9 1018.0 1021.8 1017.7 1017.0 MAX. QNH PRESSURE IN HPA 1038.9 1033.5 1030.9 1027.7 1023.3 1018.3 1016.9 1019.1 1026.2 1028.1 1029.1 1026.4 1038.9 DAY 6 11 12 4 11 1 3 31 13 26 10 7 MIN. QNH PRESSURE IN HPA 1009.3 1009.9 1005.2 1000.4 1004.7 998.1 998.4 1006.0 1005.6 1002.2 1009.2 1004.8 998.1 DAY 20 13 20 17 3 24 14 4 7 29 7 31 MEAN QFF PRESSURE IN HPA 1022.9 1023.8 1018.6 1017.7 1015.6 1009.9 1011.8 1012.9 1016.3 1018.3 1022.1 1018.0 1017.3 MAX. QFF PRESSURE IN HPA 1039.0 1033.6 1031.1 1027.9 1023.6 1018.7 1017.3 1019.5 1026.5 1028.4 1029.3 1026.7 1039.0 DAY 6 11 12 4 11 1 3 31 13 26 10 7 MIN. QFF PRESSURE IN HPA 1009.5 1010.0 1005.4 1000.7 1005.0 998.5 998.8 1006.4 1006.0 1002.5 1009.5 1005.1 998.5 DAY 20 13 20 17 3 24 14 4 7 29 7 31 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1026.8 1028.1 1022.8 1021.7 1019.2 1013.7 1015.3 1016.5 1020.0 1022.2 1026.1 1021.9 1021.2 MAX. QFE PRESSURE IN HPA 1040.8 1037.0 1034.8 1032.4 1027.1 1021.8 1020.4 1022.9 1030.6 1033.0 1033.5 1029.8 1040.8 DAY 6 10 12 4 11 1 3 31 13 26 10 7 MIN. QFE PRESSURE IN HPA 1014.2 1013.1 1009.5 1002.9 1008.6 1005.5 1003.2 1009.4 1008.6 1006.7 1013.3 1008.6 1002.9 DAY 20 13 19 17 3 23 14 4 7 29 7 31 MEAN QNH PRESSURE IN HPA 1023.3 1024.7 1019.3 1018.3 1015.8 1010.2 1011.8 1013.0 1016.6 1018.7 1022.6 1018.4 1017.7 MAX. QNH PRESSURE IN HPA 1037.3 1033.5 1031.3 1028.9 1023.6 1018.3 1016.9 1019.4 1027.1 1029.5 1030.0 1026.3 1037.3 DAY 6 10 12 4 11 1 3 31 13 26 10 7 MIN. QNH PRESSURE IN HPA 1010.8 1009.7 1006.1 999.5 1005.2 1002.1 999.8 1006.0 1005.2 1003.3 1009.9 1005.2 999.5 DAY 20 13 19 17 3 23 14 4 7 29 7 31 MEAN QFF PRESSURE IN HPA 1023.5 1024.8 1019.5 1018.5 1016.1 1010.6 1012.3 1013.4 1017.0 1019.1 1022.9 1018.7 1018.0 MAX. QFF PRESSURE IN HPA 1037.4 1033.6 1031.5 1029.1 1023.9 1018.7 1017.3 1019.9 1027.4 1029.8 1030.2 1026.6 1037.4 DAY 6 10 12 4 11 1 3 31 13 26 10 7 MIN. QFF PRESSURE IN HPA 1011.0 1009.8 1006.3 999.8 1005.5 1002.5 1000.2 1006.4 1005.6 1003.6 1010.2 1005.5 999.8 DAY 20 13 19 17 3 23 14 4 7 29 7 31 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1027.0 1028.2 1022.4 1021.4 1019.4 1013.5 1015.1 1016.3 1019.7 1022.0 1025.8 1021.8 1021.1 MAX. QFE PRESSURE IN HPA 1039.6 1037.4 1033.8 1031.2 1027.6 1022.2 1020.8 1023.0 1030.7 1032.7 1033.1 1029.1 1039.6 DAY 4 10 12 4 21 1 2 31 13 26 12 7 MIN. QFE PRESSURE IN HPA 1014.3 1013.1 1006.9 999.5 1009.2 1004.9 1005.6 1008.2 1008.1 1008.4 1013.4 1007.9 999.5 DAY 20 13 19 17 14 23 14 3 7 29 7 31 MEAN QNH PRESSURE IN HPA 1023.5 1024.7 1018.9 1018.0 1016.0 1010.1 1011.7 1012.8 1016.3 1018.5 1022.4 1018.3 1017.6 MAX. QNH PRESSURE IN HPA 1036.1 1033.9 1030.3 1027.7 1024.1 1018.7 1017.3 1019.5 1027.2 1029.2 1029.6 1025.6 1036.1 DAY 4 10 12 4 21 1 2 31 13 26 12 7 MIN. QNH PRESSURE IN HPA 1010.9 1009.7 1003.5 996.1 1005.8 1001.5 1002.2 1004.8 1004.7 1005.0 1010.0 1004.5 996.1 DAY 20 13 19 17 14 23 14 3 7 29 7 31 MEAN QFF PRESSURE IN HPA 1023.5 1025.0 1018.9 1019.0 1016.4 1010.2 1012.1 1013.2 1016.6 1018.7 1022.9 1018.5 1017.9 MAX. QFF PRESSURE IN HPA 1036.2 1034.0 1030.5 1027.9 1024.5 1018.7 1017.8 1020.0 1027.5 1029.5 1029.8 1025.9 1036.2 DAY 4 10 12 4 21 25 2 31 13 26 12 7 MIN. QFF PRESSURE IN HPA 1011.1 1009.8 1003.7 996.4 1006.1 1001.9 1002.6 1005.2 1005.1 1005.3 1010.3 1004.8 996.4 DAY 20 13 19 17 14 23 14 3 7 29 7 31 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1025.8 1027.2 1021.3 1020.5 1018.8 1012.7 1014.1 1015.3 1018.9 1020.9 1025.2 1021.0 1020.1 MAX. QFE PRESSURE IN HPA 1038.6 1037.1 1033.1 1029.6 1026.4 1022.1 1020.8 1021.9 1029.8 1031.8 1032.3 1029.2 1038.6 DAY 4 10 23 4 11 25 2 31 13 9 15 6 MIN. QFE PRESSURE IN HPA 1012.8 1012.9 1004.8 996.9 1007.2 1003.2 1004.5 1007.2 1009.7 1011.3 1013.2 1008.2 996.9 DAY 19 13 19 17 14 23 13 3 19 24 7 31 MEAN QNH PRESSURE IN HPA 1022.3 1023.8 1017.8 1017.0 1015.3 1009.2 1010.7 1011.8 1015.5 1017.5 1021.7 1017.5 1016.7 MAX. QNH PRESSURE IN HPA 1035.1 1033.6 1029.6 1026.1 1022.9 1018.6 1017.3 1018.4 1026.3 1028.3 1028.8 1025.7 1035.1 DAY 4 10 23 4 11 25 2 31 13 9 15 6 MIN. QNH PRESSURE IN HPA 1009.4 1009.5 1001.4 993.5 1003.8 999.8 1001.1 1003.8 1006.3 1007.9 1009.8 1004.8 993.5 DAY 19 13 19 17 14 23 13 3 19 24 7 31 MEAN QFF PRESSURE IN HPA 1022.5 1023.9 1018.1 1017.3 1015.8 1009.7 1011.1 1012.2 1015.8 1017.8 1022.0 1017.8 1017.0 MAX. QFF PRESSURE IN HPA 1035.2 1033.7 1029.8 1026.3 1023.3 1019.0 1017.8 1018.9 1026.6 1028.6 1029.0 1026.0 1035.2 DAY 4 10 23 4 11 25 2 31 13 9 15 6 MIN. QFF PRESSURE IN HPA 1009.6 1009.6 1001.6 993.8 1004.1 1000.2 1001.5 1004.2 1006.7 1008.2 1010.1 1005.1 993.8 DAY 19 13 19 17 14 23 13 3 19 24 7 31 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1026.0 1027.6 1021.4 1020.7 1018.7 1012.1 1013.7 1014.8 1018.9 1020.9 1025.2 1021.3 1020.1 MAX. QFE PRESSURE IN HPA 1038.6 1038.0 1033.3 1029.3 1026.8 1022.0 1020.9 1021.7 1029.8 1031.8 1032.5 1030.3 1038.6 DAY 4 10 23 21 16 25 2 30 13 9 15 6 MIN. QFE PRESSURE IN HPA 1013.0 1016.5 1004.8 999.5 1005.4 1003.0 1003.2 1007.0 1009.7 1010.7 1013.1 1010.4 999.5 DAY 19 13 19 17 14 23 13 3 19 19 7 31 MEAN QNH PRESSURE IN HPA 1022.6 1024.1 1017.9 1017.3 1015.3 1008.6 1010.2 1011.4 1015.4 1017.5 1021.7 1017.8 1016.6 MAX. QNH PRESSURE IN HPA 1035.1 1034.5 1029.8 1025.8 1023.3 1018.5 1017.4 1018.2 1026.3 1028.3 1029.0 1026.8 1035.1 DAY 4 10 23 21 16 25 2 30 13 9 15 6 MIN. QNH PRESSURE IN HPA 1009.6 1013.0 1001.4 996.1 1002.0 999.6 999.8 1003.6 1006.3 1007.3 1009.7 1007.0 996.1 DAY 19 13 19 17 14 23 13 3 19 19 7 31 MEAN QFF PRESSURE IN HPA 1022.7 1024.2 1018.1 1017.5 1015.6 1009.1 1010.7 1011.8 1015.8 1017.8 1022.0 1018.1 1016.9 MAX. QFF PRESSURE IN HPA 1035.2 1034.6 1030.0 1026.1 1023.6 1018.9 1017.8 1018.7 1026.6 1028.6 1029.2 1027.1 1035.2 DAY 4 10 23 21 16 25 2 30 13 9 15 6 MIN. QFF PRESSURE IN HPA 1009.8 1013.2 1001.6 996.4 1002.3 1000.0 1000.2 1004.0 1006.7 1007.6 1010.0 1007.3 996.4 DAY 19 13 19 17 14 23 13 3 19 19 7 31 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1026.1 1028.1 1021.7 1021.5 1019.4 1012.7 1014.4 1015.5 1019.5 1021.3 1025.6 1021.6 1020.6 MAX. QFE PRESSURE IN HPA 1039.9 1039.1 1034.1 1030.0 1027.2 1022.0 1021.9 1022.2 1030.0 1031.8 1033.0 1030.5 1039.9 DAY 5 10 11 3 27 25 2 30 13 9 15 6 MIN. QFE PRESSURE IN HPA 1012.5 1018.0 1005.6 1000.6 1005.4 1002.9 1002.7 1007.4 1010.9 1010.7 1015.1 1011.4 1000.6 DAY 19 12 19 17 14 23 13 3 19 19 7 13 MEAN QNH PRESSURE IN HPA 1022.7 1024.6 1018.2 1018.0 1015.9 1009.2 1010.9 1012.0 1016.1 1017.8 1022.1 1018.1 1017.1 MAX. QNH PRESSURE IN HPA 1036.4 1035.6 1030.6 1026.5 1023.7 1018.5 1018.4 1018.7 1026.5 1028.3 1029.5 1027.0 1036.4 DAY 5 10 11 3 27 25 2 30 13 9 15 6 MIN. QNH PRESSURE IN HPA 1009.1 1014.5 1002.2 997.2 1002.0 999.5 999.3 1004.0 1007.5 1007.3 1011.7 1008.0 997.2 DAY 19 12 19 17 14 23 13 3 19 19 7 13 MEAN QFF PRESSURE IN HPA 1022.8 1024.7 1018.4 1018.3 1016.3 1009.6 1011.3 1012.4 1016.4 1018.2 1022.4 1018.4 1017.4 MAX. QFF PRESSURE IN HPA 1036.5 1035.7 1030.8 1026.7 1024.0 1018.9 1018.8 1019.2 1026.8 1028.6 1029.7 1027.3 1036.5 DAY 5 10 11 3 27 25 2 30 13 9 15 6 MIN. QFF PRESSURE IN HPA 1009.3 1014.7 1002.4 997.5 1002.4 999.9 999.7 1004.4 1007.9 1007.6 1012.0 1008.2 997.5 DAY 19 12 19 17 14 23 13 3 19 19 7 13 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1026.3 1028.0 1021.8 1021.4 1019.2 1012.4 1014.3 1015.4 1019.2 1021.2 1025.6 1021.4 1020.5 MAX. QFE PRESSURE IN HPA 1040.6 1038.4 1034.6 1030.0 1027.3 1021.3 1022.1 1022.2 1029.8 1030.7 1032.7 1030.5 1040.6 DAY 5 10 11 3 27 25 2 30 13 9 15 6 MIN. QFE PRESSURE IN HPA 1012.5 1016.3 1006.1 1001.8 1006.3 1002.3 1002.1 1007.6 1010.2 1009.1 1013.3 1010.6 1001.8 DAY 19 12 19 17 14 23 13 3 18 28 6 30 MEAN QNH PRESSURE IN HPA 1022.8 1024.5 1018.3 1018.0 1015.7 1009.0 1010.8 1011.9 1015.7 1017.7 1022.1 1017.9 1017.0 MAX. QNH PRESSURE IN HPA 1037.1 1034.9 1031.1 1026.5 1023.8 1017.8 1018.6 1018.7 1026.3 1027.2 1029.2 1027.0 1037.1 DAY 5 10 11 3 27 25 2 30 13 9 15 6 MIN. QNH PRESSURE IN HPA 1009.1 1012.8 1002.7 998.4 1002.9 998.9 998.7 1004.2 1006.8 1005.7 1009.9 1007.2 998.4 DAY 19 12 19 17 14 23 13 3 18 28 6 30 MEAN QFF PRESSURE IN HPA 1023.0 1024.7 1018.5 1018.2 1016.0 1009.4 1011.3 1012.3 1016.1 1018.1 1022.4 1018.2 1017.4 MAX. QFF PRESSURE IN HPA 1037.2 1035.0 1031.3 1026.7 1024.1 1018.2 1019.0 1019.2 1026.6 1027.5 1029.4 1027.3 1037.2 DAY 5 10 11 3 27 25 2 30 13 9 15 6 MIN. QFF PRESSURE IN HPA 1009.3 1013.0 1002.9 998.7 1003.3 999.3 999.2 1004.6 1007.2 1006.0 1010.2 1007.4 998.7 DAY 19 12 19 17 14 23 13 3 18 28 6 30 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.9 9.8 10.2 14.2 19.7 22.8 25.6 25.3 21.3 17.2 14.4 8.7 16.4 MINIMUN AIR TEMPERATURE (C) 5.4 6.1 7.1 10.8 15.9 18.5 20.5 21.9 17.4 14.2 11.2 6.0 12.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 4 17 29 3 1 0 0 54 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 2 0 0 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS LOWEST(C) -1.0 3.0 3.0 7.0 11.0 13.0 18.0 18.0 13.0 10.0 8.0 2.0 -1.0 DAY 30 1 10 2 8 11 2 31 13 26 1 16 MAXIMUM AIR TEMPERATURE (C) 10.6 13.9 13.6 18.3 23.7 27.0 30.1 29.0 25.3 20.7 17.8 11.7 20.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 1 0 0 3 23 15 0 0 0 0 42 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.0 27.0 30.0 25.0 28.0 32.0 34.0 31.0 29.0 25.0 21.0 18.0 34.0 DAY 30 14 18 18 6 30 29 5 6 1 3 11 DIF. BETWEEN (MAX.-MIN.) (C) 5.2 7.8 6.5 7.5 7.8 8.5 9.6 7.1 7.9 6.5 6.6 5.7 7.2 MEAN DAILY TEMP. (MDT) (C) 8.0 10.0 10.3 14.6 19.8 22.7 25.3 25.5 21.3 17.5 14.5 8.8 16.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 5.5 61.0 133.0 139.0 29.0 2.0 0.0 0.0 369.5 HEATING DEG. DAYS(BASE 18 0C) 310.0 224.0 241.5 105.0 6.0 1.0 0.0 0.0 0.5 34.5 105.0 268.0 1295.5 DEWPOINT (MEAN C) 5.5 6.3 6.9 11.0 16.1 17.4 20.3 21.5 18.5 15.0 12.8 6.9 13.2 MIXING RATIO (G/KG) 5.62 5.93 6.23 8.16 11.54 12.52 15.06 16.24 13.45 10.65 9.21 6.22 10.07 VAPOUR PRESSURE (HPA) 9.17 9.64 10.11 13.22 18.47 20.03 23.91 25.72 21.51 17.17 14.90 10.13 16.16 SATURATION DEF. (HPA) 1.60 2.74 2.86 3.18 4.80 8.20 9.52 6.94 4.16 2.66 1.64 1.26 4.13 RELATIVE HUMIDITY (MEAN %) 86 81 82 82 81 73 74 80 85 87 91 89 83 RELATIVE HUMIDITY (MAX. %) 92 92 92 93 92 89 90 93 96 97 98 96 93 RELATIVE HUMIDITY (MIN. %) 79 69 72 68 69 57 58 67 71 76 82 80 71 RELATIVE HUMIDITY (MEAN% 03UTC) 89 83 86 87 89 86 85 90 93 94 95 93 89 RELATIVE HUMIDITY (MEAN% 09UTC) 83 78 76 74 72 61 62 72 75 79 84 82 75 RELATIVE HUMIDITY (MEAN% 15UTC) 83 79 80 77 77 65 68 74 80 84 89 89 79 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 316.4 22.4 89.5 37.6 27.8 18.0 100.2 72.1 59.3 202.5 135.0 372.0 1452.8 DAYS WITH PRECIPITATION >=10 9 0 4 1 0 1 3 3 3 7 4 6 41 DAYS WITH PRECIPITATION >= 5 11 2 6 2 3 1 5 6 5 8 6 10 65 DAYS WITH PRECIPITATION >= 1 14 6 12 6 7 1 5 8 7 12 9 15 102 DAYS WITH PRECIPITATION 15 12 15 9 11 1 5 10 11 13 9 16 127 GREATEST DAILY PRECIPITATION 59.0 8.0 22.0 27.0 6.0 18.0 63.0 18.0 20.0 46.0 44.0 93.0 93.0 DAY 26 24 10 21 11 10 31 30 9 18 13 9 DAY WITH THUNDER STORM 0 0 1 4 6 1 5 0 1 0 1 0 19 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 270 270 270 45 360 225 225 225 225 225 225 270 225 PREVAILING WIND SPEED(KNOTS) 2.6 3.5 3.4 4.8 6.1 3.6 3.3 2.6 3.1 2.5 2.5 5.9 3.1 PREVAILING WIND PERCENT 19.2 15.2 16.2 15.1 19.4 25.1 31.5 24.3 25.1 22.3 20.1 35.0 18.7 CALMS PERCENT OF WIND 17.1 15.7 16.2 18.8 15.0 10.5 11.7 11.7 9.2 5.7 11.3 5.1 12.3 NO. OF WIND OBSERVATION 245 223 247 239 247 239 248 247 239 247 239 234 2894 VECTOR WIND DIRECTION (MEAN) 330 337 310 28 10 348 234 353 39 331 323 298 331 VECTOR WIND MAGNITUDE(KNOTS) 1.2 0.6 0.7 0.7 1.5 0.7 0.5 1.3 0.9 2.6 1.8 3.7 1.1 WIND STEADINESES (MEAN %) 37.5 18.2 24.1 21.9 34.9 17.9 16.1 28.9 20.0 50.0 41.9 61.7 27.5 WIND SPEED (MEAN KNOTS) 3.2 3.3 2.9 3.2 4.3 3.9 3.1 4.5 4.5 5.2 4.3 6.0 4.0 FASTEST WIND DIRECTION 360 360 50 360 360 20 50 50 310 20 360 330 310 FASTEST WIND SPEED (KNOTS) 25 24 15 15 22 35 10 25 37 35 30 30 37 DAY 11 13 18 15 20 10 21 29 9 30 3 13 DAYS WITH SKY CLEAR (0-2)/8 2 3 4 3 11 18 15 9 8 7 5 5 90 DAYS WITH P.CLOUDY (3-6)/8 6 10 5 10 10 9 11 10 10 7 10 6 104 DAYS WITH CLOUDY (7-8)/8 23 15 22 17 10 3 5 12 12 17 15 19 170 DAYS WITH VISIBILITY =< 2 KM 9 6 1 9 2 1 1 1 3 3 6 5 47 DURATION OF SUNSHINE HOURS 70.4 98.5 89.9 82.0 216.6 273.6 262.7 168.8 151.6 125.1 105.4 80.3 1724.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1023.6 1020.9 1021.8 1021.0 1015.2 1015.7 1012.0 1011.4 1017.1 1020.9 1022.0 1024.1 1018.8 MAX. QFE PRESSURE IN HPA 1032.3 1030.5 1032.6 1034.7 1025.3 1028.6 1018.5 1024.3 1027.3 1030.5 1036.2 1031.7 1036.2 DAY-HOUR 2- 6 16- 6 5- 9 22- 6 9- 9 11- 3 31-18 29-21 18- 9 11- 6 14- 6 26- 9 MIN. QFE PRESSURE IN HPA 1010.9 1002.3 1000.4 998.4 1005.3 1007.8 1006.5 998.7 1008.0 1006.0 1008.9 1008.2 998.4 DAY-HOUR 30- 3 19- 0 18-15 19-15 15-12 20-15 10-15 27- 0 6-12 6- 0 3-15 11- 0 MEAN QNH PRESSURE IN HPA 1020.1 1017.4 1018.4 1017.6 1011.7 1012.2 1008.6 1007.9 1013.6 1017.5 1018.6 1020.6 1015.3 MAX. QNH PRESSURE IN HPA 1028.8 1027.0 1029.1 1031.2 1021.8 1025.1 1015.0 1020.8 1023.8 1027.0 1032.7 1028.2 1032.7 DAY-HOUR 2- 6 16- 6 5- 9 22- 6 9- 9 11- 3 31-18 29-21 18- 9 11- 6 14- 6 26- 9 MIN. QNH PRESSURE IN HPA 1007.5 998.9 997.0 995.0 1001.9 1004.4 1003.1 995.3 1004.6 1002.6 1005.5 1004.8 995.0 DAY-HOUR 30- 3 19- 0 18-15 19-15 15-12 20-15 10-15 27- 0 6-12 6- 0 3-15 11- 0 MEAN QFF PRESSURE IN HPA 1020.3 1017.6 1018.6 1017.9 1012.1 1012.6 1009.0 1008.4 1014.0 1017.8 1018.9 1020.8 1015.7 MAX. QFF PRESSURE IN HPA 1029.0 1027.3 1029.3 1031.5 1022.2 1025.5 1015.4 1021.2 1024.2 1027.3 1033.0 1028.4 1033.0 DAY-HOUR 2- 6 16- 6 5- 9 22- 6 9- 9 11- 6 31-21 29-21 18- 9 11- 6 14- 6 26- 9 MIN. QFF PRESSURE IN HPA 1007.7 999.2 997.4 995.4 1002.3 1004.8 1003.5 995.7 1005.0 1003.0 1005.8 1005.0 995.4 DAY-HOUR 30- 3 19- 0 18-15 19-15 15-12 20-15 13-15 27- 3 6-15 6- 0 3-15 11- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1023.4 1020.6 1021.6 1020.3 1014.9 1015.6 1011.6 1011.3 1017.1 1020.7 1021.9 1023.9 1018.6 MAX. QFE PRESSURE IN HPA 1030.8 1030.0 1031.3 1034.2 1023.9 1028.1 1016.8 1022.6 1025.8 1027.6 1034.8 1031.0 1034.8 DAY 2 16 9 22 9 11 23 30 18 12 14 28 MIN. QFE PRESSURE IN HPA 1011.1 1002.3 1002.5 1002.2 1006.7 1008.4 1006.6 998.7 1010.4 1006.0 1013.7 1008.2 998.7 DAY 30 19 19 19 23 20 20 27 6 6 8 11 MEAN QNH PRESSURE IN HPA 1020.0 1017.1 1018.1 1016.9 1011.5 1012.2 1008.2 1007.8 1013.6 1017.2 1018.5 1020.4 1015.1 MAX. QNH PRESSURE IN HPA 1027.3 1026.5 1027.8 1030.7 1020.4 1024.6 1013.3 1019.1 1022.3 1024.1 1031.3 1027.5 1031.3 DAY 2 16 9 22 9 11 23 30 18 12 14 28 MIN. QNH PRESSURE IN HPA 1007.7 998.9 999.1 998.8 1003.3 1005.0 1003.2 995.3 1007.0 1002.6 1010.3 1004.8 995.3 DAY 30 19 19 19 23 20 20 27 6 6 8 11 MEAN QFF PRESSURE IN HPA 1020.2 1017.4 1018.4 1017.2 1011.9 1012.6 1008.6 1008.3 1014.0 1017.6 1018.8 1020.7 1015.5 MAX. QFF PRESSURE IN HPA 1027.5 1026.8 1028.0 1031.0 1020.8 1024.9 1013.8 1019.5 1022.7 1024.4 1031.6 1027.7 1031.6 DAY 2 16 9 22 9 11 23 30 18 12 14 28 MIN. QFF PRESSURE IN HPA 1007.9 999.2 999.5 999.1 1003.7 1005.4 1003.6 995.7 1007.4 1003.0 1010.6 1005.0 995.7 DAY 30 19 19 19 23 20 20 27 6 6 8 11 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1023.2 1020.5 1021.8 1021.0 1015.5 1016.1 1012.2 1011.8 1017.5 1021.0 1022.1 1023.9 1018.9 MAX. QFE PRESSURE IN HPA 1030.8 1030.0 1031.5 1034.2 1024.2 1028.6 1016.9 1022.2 1025.8 1028.2 1035.0 1030.7 1035.0 DAY 2 16 5 22 9 11 23 30 18 11 14 27 MIN. QFE PRESSURE IN HPA 1010.9 1002.7 1004.6 1002.5 1007.5 1008.4 1007.5 998.7 1010.4 1006.7 1015.3 1010.4 998.7 DAY 30 19 19 19 26 20 20 27 6 6 12 11 MEAN QNH PRESSURE IN HPA 1019.7 1017.0 1018.3 1017.5 1012.1 1012.7 1008.8 1008.3 1014.0 1017.6 1018.7 1020.5 1015.4 MAX. QNH PRESSURE IN HPA 1027.3 1026.5 1028.0 1030.7 1020.7 1025.1 1013.4 1018.7 1022.3 1024.7 1031.5 1027.2 1031.5 DAY 2 16 5 22 9 11 23 30 18 11 14 27 MIN. QNH PRESSURE IN HPA 1007.5 999.3 1001.2 999.1 1004.1 1005.0 1004.1 995.3 1007.0 1003.3 1011.9 1007.0 995.3 DAY 30 19 19 19 26 20 20 27 6 6 12 11 MEAN QFF PRESSURE IN HPA 1019.9 1017.2 1018.6 1017.8 1012.4 1013.1 1009.2 1008.7 1014.4 1017.9 1019.0 1020.6 1015.7 MAX. QFF PRESSURE IN HPA 1027.5 1026.8 1028.2 1031.0 1021.0 1025.4 1013.9 1019.1 1022.7 1025.0 1031.8 1027.4 1031.8 DAY 2 16 5 22 9 11 23 30 18 11 14 27 MIN. QFF PRESSURE IN HPA 1007.7 999.6 1001.6 999.5 1004.5 1005.4 1004.5 995.7 1007.4 1003.6 1012.1 1007.2 995.7 DAY 30 19 19 19 26 20 20 27 6 6 12 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1024.1 1021.3 1022.3 1022.0 1015.9 1016.4 1012.5 1012.2 1017.9 1021.7 1023.0 1024.8 1019.5 MAX. QFE PRESSURE IN HPA 1032.3 1030.5 1032.5 1034.7 1025.0 1028.6 1017.2 1022.0 1027.2 1030.5 1036.2 1031.6 1036.2 DAY 2 16 5 22 9 11 23 30 18 11 14 27 MIN. QFE PRESSURE IN HPA 1012.1 1008.5 1004.6 1002.3 1006.6 1008.1 1007.8 998.7 1010.4 1007.9 1014.9 1013.2 998.7 DAY 30 19 19 19 15 20 10 27 6 6 3 11 MEAN QNH PRESSURE IN HPA 1020.6 1017.9 1018.9 1018.5 1012.4 1012.9 1009.1 1008.7 1014.5 1018.3 1019.6 1021.3 1016.1 MAX. QNH PRESSURE IN HPA 1028.8 1027.0 1029.0 1031.2 1021.5 1025.1 1013.7 1018.5 1023.7 1027.0 1032.7 1028.1 1032.7 DAY 2 16 5 22 9 11 23 30 18 11 14 27 MIN. QNH PRESSURE IN HPA 1008.7 1005.1 1001.2 998.9 1003.2 1004.7 1004.4 995.3 1007.0 1004.5 1011.5 1009.8 995.3 DAY 30 19 19 19 15 20 10 27 6 6 3 11 MEAN QFF PRESSURE IN HPA 1020.9 1018.1 1019.1 1018.8 1012.8 1013.4 1009.5 1009.2 1014.8 1018.6 1019.9 1021.4 1016.4 MAX. QFF PRESSURE IN HPA 1029.0 1027.3 1029.2 1031.5 1021.9 1025.5 1014.2 1018.9 1024.1 1027.3 1033.0 1028.3 1033.0 DAY 2 16 5 22 9 11 23 30 18 11 14 27 MIN. QFF PRESSURE IN HPA 1008.9 1005.4 1001.6 999.2 1003.6 1005.1 1004.8 995.7 1007.4 1004.9 1011.8 1010.0 995.7 DAY 30 19 19 19 15 20 10 27 6 6 3 11 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1023.9 1021.3 1022.3 1022.0 1015.6 1016.1 1012.4 1011.9 1017.4 1021.2 1022.4 1024.6 1019.3 MAX. QFE PRESSURE IN HPA 1031.6 1030.0 1032.6 1034.2 1025.3 1028.1 1017.9 1021.4 1027.3 1030.0 1036.0 1031.7 1036.0 DAY 2 16 5 22 9 11 31 29 18 11 14 26 MIN. QFE PRESSURE IN HPA 1013.1 1007.6 1004.7 1000.8 1005.4 1008.1 1007.4 999.5 1009.5 1007.3 1013.7 1014.0 999.5 DAY 30 18 19 19 15 20 10 27 6 14 3 10 MEAN QNH PRESSURE IN HPA 1020.5 1017.9 1018.9 1018.5 1012.2 1012.6 1009.0 1008.5 1014.0 1017.8 1018.9 1021.1 1015.8 MAX. QNH PRESSURE IN HPA 1028.1 1026.5 1029.1 1030.7 1021.8 1024.6 1014.4 1017.9 1023.8 1026.5 1032.5 1028.2 1032.5 DAY 2 16 5 22 9 11 31 29 18 11 14 26 MIN. QNH PRESSURE IN HPA 1009.7 1004.2 1001.3 997.4 1002.0 1004.7 1004.0 996.1 1006.1 1003.9 1010.3 1010.6 996.1 DAY 30 18 19 19 15 20 10 27 6 14 3 10 MEAN QFF PRESSURE IN HPA 1020.7 1017.9 1019.2 1018.7 1012.5 1012.9 1009.3 1008.9 1014.5 1018.3 1019.3 1021.4 1016.1 MAX. QFF PRESSURE IN HPA 1028.3 1026.8 1029.3 1031.0 1022.2 1025.0 1014.9 1018.4 1024.2 1026.8 1032.8 1028.4 1032.8 DAY 2 16 5 22 9 11 31 29 18 11 14 26 MIN. QFF PRESSURE IN HPA 1009.9 1004.4 1001.7 997.8 1002.4 1005.1 1004.4 996.6 1006.5 1004.2 1010.6 1010.8 996.6 DAY 30 18 19 19 15 20 10 27 6 14 3 10 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1023.2 1020.6 1021.4 1021.0 1014.8 1015.3 1012.0 1010.9 1016.3 1020.3 1021.2 1023.5 1018.4 MAX. QFE PRESSURE IN HPA 1030.8 1028.7 1031.4 1032.3 1024.2 1026.9 1017.8 1022.1 1027.0 1029.0 1034.5 1030.7 1034.5 DAY 2 16 9 22 9 11 31 29 18 11 14 26 MIN. QFE PRESSURE IN HPA 1012.7 1005.6 1001.9 999.9 1005.3 1007.9 1006.8 1000.7 1008.0 1007.8 1009.8 1012.1 999.9 DAY 30 18 18 19 15 20 13 27 6 14 3 10 MEAN QNH PRESSURE IN HPA 1019.7 1017.2 1017.9 1017.6 1011.3 1011.9 1008.5 1007.5 1012.8 1016.9 1017.8 1020.0 1014.9 MAX. QNH PRESSURE IN HPA 1027.3 1025.2 1027.9 1028.8 1020.7 1023.4 1014.3 1018.6 1023.5 1025.5 1031.0 1027.2 1031.0 DAY 2 16 9 22 9 11 31 29 18 11 14 26 MIN. QNH PRESSURE IN HPA 1009.3 1002.2 998.5 996.5 1001.9 1004.5 1003.4 997.3 1004.6 1004.4 1006.4 1008.7 996.5 DAY 30 18 18 19 15 20 13 27 6 14 3 10 MEAN QFF PRESSURE IN HPA 1020.0 1017.4 1018.2 1017.9 1011.7 1012.3 1009.0 1007.9 1013.2 1017.2 1018.1 1020.1 1015.2 MAX. QFF PRESSURE IN HPA 1027.5 1025.5 1028.1 1029.1 1021.1 1023.8 1014.8 1019.0 1023.9 1025.8 1031.3 1027.4 1031.3 DAY 2 16 9 22 9 11 31 29 18 11 14 26 MIN. QFF PRESSURE IN HPA 1009.5 1002.5 998.9 996.9 1002.3 1004.9 1003.8 997.7 1005.0 1004.7 1006.7 1008.9 996.9 DAY 30 18 18 19 15 20 13 27 6 14 3 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1023.4 1020.7 1021.5 1020.6 1014.4 1014.9 1011.5 1010.7 1016.1 1020.5 1021.7 1023.9 1018.3 MAX. QFE PRESSURE IN HPA 1030.7 1028.5 1031.0 1032.8 1024.0 1026.2 1017.5 1023.1 1026.5 1028.9 1034.5 1030.9 1034.5 DAY 2 15 9 21 8 10 31 29 18 11 14 29 MIN. QFE PRESSURE IN HPA 1012.8 1004.0 1000.4 998.4 1006.1 1007.8 1006.5 1001.0 1008.0 1008.6 1008.9 1011.7 998.4 DAY 22 18 18 19 26 20 10 26 6 6 3 10 MEAN QNH PRESSURE IN HPA 1019.9 1017.2 1018.0 1017.1 1011.0 1011.4 1008.1 1007.2 1012.6 1017.0 1018.2 1020.4 1014.8 MAX. QNH PRESSURE IN HPA 1027.2 1025.0 1027.5 1029.3 1020.5 1022.7 1014.0 1019.6 1023.0 1025.4 1031.0 1027.4 1031.0 DAY 2 15 9 21 8 10 31 29 18 11 14 29 MIN. QNH PRESSURE IN HPA 1009.4 1000.6 997.0 995.0 1002.7 1004.4 1003.1 997.6 1004.6 1005.2 1005.5 1008.3 995.0 DAY 22 18 18 19 26 20 10 26 6 6 3 10 MEAN QFF PRESSURE IN HPA 1020.2 1017.5 1018.3 1017.4 1011.3 1011.8 1008.5 1007.7 1013.0 1017.4 1018.5 1020.6 1015.2 MAX. QFF PRESSURE IN HPA 1027.4 1025.3 1027.7 1029.6 1020.8 1023.1 1014.5 1020.0 1023.4 1025.7 1031.3 1027.6 1031.3 DAY 2 15 9 21 8 10 31 29 18 11 14 29 MIN. QFF PRESSURE IN HPA 1009.6 1000.9 997.4 995.4 1003.1 1004.8 1003.5 998.0 1005.0 1005.5 1005.8 1008.5 995.4 DAY 22 18 18 19 26 20 13 26 6 6 3 10 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1023.8 1021.2 1022.0 1020.9 1015.3 1015.3 1011.9 1011.3 1017.2 1021.1 1021.9 1024.4 1018.9 MAX. QFE PRESSURE IN HPA 1030.9 1030.0 1031.6 1033.5 1024.1 1027.5 1018.5 1024.2 1026.5 1028.9 1034.2 1031.3 1034.2 DAY 1 15 8 21 8 10 31 29 18 11 14 27 MIN. QFE PRESSURE IN HPA 1012.8 1003.2 1002.1 1000.9 1006.3 1008.2 1007.5 1000.8 1009.9 1008.3 1009.3 1010.7 1000.8 DAY 22 18 18 19 14 7 9 26 6 5 3 10 MEAN QNH PRESSURE IN HPA 1020.3 1017.7 1018.6 1017.5 1011.8 1011.9 1008.5 1007.9 1013.8 1017.6 1018.5 1020.9 1015.4 MAX. QNH PRESSURE IN HPA 1027.4 1026.5 1028.1 1030.0 1020.6 1024.0 1015.0 1020.7 1023.0 1025.4 1030.7 1027.8 1030.7 DAY 1 15 8 21 8 10 31 29 18 11 14 27 MIN. QNH PRESSURE IN HPA 1009.4 999.8 998.7 997.5 1002.9 1004.8 1004.1 997.4 1006.5 1004.9 1005.9 1007.3 997.4 DAY 22 18 18 19 14 7 9 26 6 5 3 10 MEAN QFF PRESSURE IN HPA 1020.5 1018.0 1018.8 1017.8 1012.2 1012.3 1008.9 1008.3 1014.1 1017.9 1018.8 1021.1 1015.7 MAX. QFF PRESSURE IN HPA 1027.6 1026.8 1028.3 1030.3 1021.0 1024.3 1015.4 1021.1 1023.4 1025.7 1031.0 1028.0 1031.0 DAY 1 15 8 21 8 10 31 29 18 11 14 29 MIN. QFF PRESSURE IN HPA 1009.6 1000.1 999.1 997.8 1003.3 1005.2 1004.5 997.8 1006.9 1005.2 1006.2 1007.5 997.8 DAY 22 18 18 19 14 7 9 26 6 5 3 10 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1023.7 1020.9 1021.9 1020.7 1015.1 1015.6 1012.0 1011.2 1017.4 1021.2 1022.0 1024.1 1018.8 MAX. QFE PRESSURE IN HPA 1030.8 1030.0 1031.5 1034.2 1024.3 1027.9 1018.5 1024.3 1025.6 1028.6 1034.7 1031.0 1034.7 DAY 1 15 8 21 8 10 31 29 17 11 13 29 MIN. QFE PRESSURE IN HPA 1012.2 1002.8 1002.5 1002.4 1006.5 1008.6 1007.2 999.3 1010.8 1007.0 1013.7 1009.0 999.3 DAY 29 18 18 19 14 7 9 26 6 5 7 10 MEAN QNH PRESSURE IN HPA 1020.2 1017.4 1018.4 1017.2 1011.6 1012.2 1008.6 1007.8 1014.0 1017.7 1018.5 1020.6 1015.4 MAX. QNH PRESSURE IN HPA 1027.3 1026.5 1028.0 1030.7 1020.8 1024.4 1015.0 1020.8 1022.1 1025.1 1031.2 1027.5 1031.2 DAY 1 15 8 21 8 10 31 29 17 11 13 29 MIN. QNH PRESSURE IN HPA 1008.8 999.4 999.1 999.0 1003.1 1005.2 1003.8 995.9 1007.4 1003.6 1010.3 1005.6 995.9 DAY 29 18 18 19 14 7 9 26 6 5 7 10 MEAN QFF PRESSURE IN HPA 1020.5 1017.7 1018.7 1017.5 1012.0 1012.6 1009.0 1008.2 1014.4 1018.0 1018.8 1020.8 1015.7 MAX. QFF PRESSURE IN HPA 1027.5 1026.8 1028.2 1031.0 1021.2 1024.7 1015.4 1021.2 1022.5 1025.4 1031.5 1027.7 1031.5 DAY 1 15 8 21 8 10 31 29 17 11 13 29 MIN. QFF PRESSURE IN HPA 1009.0 999.7 999.5 999.3 1003.5 1005.6 1004.2 996.4 1007.8 1004.0 1010.6 1005.8 996.4 DAY 29 18 18 19 19 7 9 26 6 5 7 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.2 6.9 9.5 11.9 19.8 22.9 26.9 26.0 24.6 18.8 15.2 10.2 16.6 MINIMUN AIR TEMPERATURE (C) 2.7 3.4 6.8 8.9 16.6 18.4 22.0 21.0 18.9 13.4 10.7 5.5 12.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 6 26 21 7 0 0 0 61 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 7 7 0 0 0 0 0 0 0 0 0 2 16 TEMPERATURE RECORDS LOWEST(C) -1.0 -1.0 5.0 3.0 13.0 15.0 19.0 19.0 16.0 9.0 7.0 0.0 -1.0 DAY 16 15 6 3 1 4 1 8 21 26 20 21 MAXIMUM AIR TEMPERATURE (C) 9.3 10.8 12.5 14.9 23.5 27.5 31.6 30.5 29.2 22.5 18.1 14.0 20.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 5 28 22 10 0 0 0 65 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 16.0 21.0 19.0 23.0 27.0 33.0 37.0 36.0 32.0 28.0 20.0 26.0 37.0 DAY 2 10 12 14 24 13 26 17 5 7 3 12 DIF. BETWEEN (MAX.-MIN.) (C) 6.6 7.4 5.7 6.0 6.9 9.1 9.6 9.5 10.3 9.1 7.4 8.5 8.0 MEAN DAILY TEMP. (MDT) (C) 6.0 7.1 9.6 11.9 20.0 22.9 26.8 25.8 24.0 18.0 14.4 9.7 16.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 10.5 61.0 180.5 147.5 91.0 1.0 0.0 0.0 491.5 HEATING DEG. DAYS(BASE 18 0C) 372.0 306.0 259.0 183.0 4.0 0.0 0.0 0.0 0.0 24.5 109.0 256.5 1514.0 DEWPOINT (MEAN C) 4.5 4.7 8.1 9.9 16.2 17.4 20.9 20.3 20.3 15.4 12.9 6.7 13.1 MIXING RATIO (G/KG) 5.24 5.37 6.70 7.65 11.59 12.54 15.76 15.04 15.04 10.95 9.25 6.25 10.12 VAPOUR PRESSURE (HPA) 8.60 8.71 10.87 12.37 18.57 19.98 24.95 23.89 24.02 17.68 14.95 10.14 16.23 SATURATION DEF. (HPA) 1.09 1.43 1.06 1.83 4.73 8.29 10.94 10.22 7.34 4.42 2.47 2.91 4.73 RELATIVE HUMIDITY (MEAN %) 89 87 91 88 81 72 71 72 78 82 87 81 82 RELATIVE HUMIDITY (MAX. %) 96 95 97 95 93 88 87 87 93 93 96 92 93 RELATIVE HUMIDITY (MIN. %) 81 76 83 79 67 57 56 56 66 72 79 71 70 RELATIVE HUMIDITY (MEAN% 03UTC) 93 91 95 92 91 85 85 82 92 91 95 89 90 RELATIVE HUMIDITY (MEAN% 09UTC) 84 83 87 83 70 61 59 61 69 77 81 75 74 RELATIVE HUMIDITY (MEAN% 15UTC) 88 85 90 87 74 66 64 64 72 80 86 79 78 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 198.0 80.8 39.2 92.3 7.1 10.3 0.0 10.3 124.0 224.3 158.2 211.7 1156.2 DAYS WITH PRECIPITATION >=10 7 1 1 3 0 1 0 0 2 6 3 8 32 DAYS WITH PRECIPITATION >= 5 8 4 3 7 0 1 0 0 2 8 4 9 46 DAYS WITH PRECIPITATION >= 1 12 11 10 14 3 1 0 4 2 10 7 13 87 DAYS WITH PRECIPITATION 12 13 15 17 9 2 0 5 3 13 8 16 113 GREATEST DAILY PRECIPITATION 52.0 39.0 11.0 34.0 3.0 10.0 0.0 4.0 93.0 74.0 113.0 35.0 113.0 DAY 15 13 15 2 18 19 ** 20 29 1 10 30 DAY WITH THUNDER STORM 0 0 0 0 1 0 0 1 1 0 2 0 5 DAYS WITH SNOW OR SLEET 4 3 0 0 0 0 0 0 0 0 0 0 7 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 1 0 1 WIND DIRECTION (PREVAILING) 270 270 90 90 45 45 45 45 45 45 225 225 45 PREVAILING WIND SPEED(KNOTS) 5.4 4.2 5.1 5.4 6.5 7.4 6.3 7.4 7.9 7.2 3.8 5.8 6.8 PREVAILING WIND PERCENT 22.3 19.3 18.6 24.7 22.7 20.1 20.2 19.4 23.0 19.4 21.3 28.4 15.9 CALMS PERCENT OF WIND 10.5 14.3 12.1 8.4 12.1 7.1 9.7 6.5 12.9 5.8 22.7 10.3 10.8 NO. OF WIND OBSERVATION 247 223 247 239 247 239 247 247 217 155 150 155 2613 VECTOR WIND DIRECTION (MEAN) 309 335 40 37 15 18 14 351 47 9 321 281 359 VECTOR WIND MAGNITUDE(KNOTS) 2.4 1.4 1.7 2.5 2.8 2.0 1.7 2.1 1.9 2.2 1.2 2.9 1.6 WIND STEADINESES (MEAN %) 51.1 31.8 43.6 53.2 53.8 37.0 35.4 39.6 37.3 32.8 30.8 45.3 32.0 WIND SPEED (MEAN KNOTS) 4.7 4.4 3.9 4.7 5.2 5.4 4.8 5.3 5.1 6.7 3.9 6.4 5.0 FASTEST WIND DIRECTION 340 340 330 360 340 300 90 360 80 360 360 210 360 FASTEST WIND SPEED (KNOTS) 25 30 25 20 22 25 15 20 22 38 28 30 38 DAY 15 10 9 1 26 19 10 7 26 8 29 13 DAYS WITH SKY CLEAR (0-2)/8 6 4 2 4 6 15 21 12 21 9 5 4 109 DAYS WITH P.CLOUDY (3-6)/8 9 8 4 9 16 9 9 12 7 11 12 12 118 DAYS WITH CLOUDY (7-8)/8 16 16 25 17 9 6 1 7 2 11 13 15 138 DAYS WITH VISIBILITY =< 2 KM 6 4 8 10 2 1 0 0 3 3 5 1 43 DURATION OF SUNSHINE HOURS 103.8 98.0 68.0 117.5 214.0 235.7 291.0 202.5 253.5 160.0 84.0 84.9 1912.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1028.9 1018.3 1020.4 1018.5 1016.0 1012.2 1010.6 1012.2 1018.1 1022.3 1021.2 1020.6 1018.3 MAX. QFE PRESSURE IN HPA 1045.0 1033.6 1034.4 1031.5 1024.7 1022.1 1017.5 1019.0 1027.9 1033.3 1032.0 1036.0 1045.0 DAY-HOUR 8-18 1- 6 5-18 9- 6 1-18 16-21 12- 3 7- 6 23- 9 31- 6 20- 6 31-15 MIN. QFE PRESSURE IN HPA 1013.7 998.2 1006.8 997.3 1007.5 1002.6 1001.5 1005.8 1008.6 1008.8 1008.1 1005.0 997.3 DAY-HOUR 13-12 27-15 11-15 14-12 26- 3 21- 0 4-15 18- 0 7-15 7- 3 18- 9 7-15 MEAN QNH PRESSURE IN HPA 1025.4 1014.8 1016.9 1015.0 1012.5 1008.8 1007.2 1008.8 1014.6 1018.8 1017.7 1017.1 1014.8 MAX. QNH PRESSURE IN HPA 1041.5 1030.1 1030.9 1028.0 1021.2 1018.6 1014.0 1015.5 1024.4 1029.8 1028.5 1032.5 1041.5 DAY-HOUR 8-18 1- 6 5-18 9- 6 1-18 16-21 12- 3 7- 6 23- 9 31- 6 20- 6 31-15 MIN. QNH PRESSURE IN HPA 1010.3 994.8 1003.4 993.9 1004.1 999.2 998.1 1002.4 1005.2 1005.4 1004.7 1001.6 993.9 DAY-HOUR 13-12 27-15 11-15 14-12 26- 3 21- 0 4-15 18- 0 7-15 7- 3 18- 9 7-15 MEAN QFF PRESSURE IN HPA 1025.6 1015.0 1017.1 1015.3 1012.9 1009.2 1007.6 1009.2 1014.9 ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1041.7 1030.3 1031.1 1028.2 1021.5 1019.0 1014.5 1016.0 1024.8 ****** ****** ****** ****** DAY-HOUR 8-18 1- 6 5-18 9- 6 1-18 16-21 12- 6 7- 9 23- 9 **-** **-** **-** MIN. QFF PRESSURE IN HPA 1010.5 995.1 1003.6 994.2 1004.5 999.6 998.5 1002.8 1005.6 ****** ****** ****** ****** DAY-HOUR 13-12 27-15 11-15 14-12 26- 3 21- 0 4-15 18- 0 7-15 **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1029.0 1018.5 1020.3 1017.9 1015.7 1012.2 1010.5 1012.2 1017.4 ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 1043.2 1033.2 1033.4 1030.2 1024.1 1021.9 1016.8 1018.5 1026.2 ****** ****** ****** ****** DAY 9 1 6 9 2 17 12 21 23 ** ** ** MIN. QFE PRESSURE IN HPA 1015.2 1005.3 1009.6 997.7 1008.2 1002.6 1002.3 1005.8 1009.9 ****** ****** ****** ****** DAY 14 10 28 14 26 21 5 18 8 ** ** ** MEAN QNH PRESSURE IN HPA 1025.5 1015.0 1016.8 1014.5 1012.2 1008.7 1007.1 1008.8 1014.0 ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1039.7 1029.7 1029.9 1026.7 1020.6 1018.4 1013.3 1015.0 1022.7 ****** ****** ****** ****** DAY 9 1 6 9 2 17 12 21 23 ** ** ** MIN. QNH PRESSURE IN HPA 1011.8 1001.9 1006.2 994.3 1004.8 999.2 998.9 1002.4 1006.5 ****** ****** ****** ****** DAY 14 10 28 14 26 21 5 18 8 ** ** ** MEAN QFF PRESSURE IN HPA 1025.7 1015.2 1017.1 1014.8 1012.6 1009.1 1007.5 1009.2 1014.4 ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1039.9 1029.9 1030.1 1027.0 1021.0 1018.8 1013.8 1015.4 1023.1 ****** ****** ****** ****** DAY 9 1 6 9 2 17 12 21 23 ** ** ** MIN. QFF PRESSURE IN HPA 1012.0 1002.2 1006.4 994.6 1005.2 999.6 999.3 1002.8 1006.9 ****** ****** ****** ****** DAY 14 10 28 14 26 21 5 18 8 ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1028.7 1018.7 1020.6 1018.3 1016.4 1012.8 1011.3 1012.7 1018.4 1022.4 1021.4 1020.4 1018.5 MAX. QFE PRESSURE IN HPA 1042.0 1033.0 1033.1 1030.8 1024.1 1022.0 1017.5 1018.3 1026.8 1032.9 1031.1 1032.6 1042.0 DAY 9 1 6 9 2 17 12 21 23 31 20 28 MIN. QFE PRESSURE IN HPA 1015.7 1003.0 1010.0 997.9 1007.5 1003.3 1003.7 1008.0 1010.7 1008.8 1008.5 1008.4 997.9 DAY 13 10 28 14 26 21 21 18 7 7 18 13 MEAN QNH PRESSURE IN HPA 1025.3 1015.2 1017.1 1014.9 1012.9 1009.3 1007.8 1009.2 1015.0 1018.9 1018.0 1016.9 1015.0 MAX. QNH PRESSURE IN HPA 1038.5 1029.5 1029.6 1027.3 1020.6 1018.5 1014.0 1014.8 1023.3 1029.4 1027.6 1029.1 1038.5 DAY 9 1 6 9 2 17 12 21 23 31 20 28 MIN. QNH PRESSURE IN HPA 1012.2 999.6 1006.6 994.5 1004.1 999.9 1000.3 1004.6 1007.3 1005.4 1005.1 1005.0 994.5 DAY 13 10 28 14 26 21 21 18 7 7 18 13 MEAN QFF PRESSURE IN HPA 1025.5 1015.4 1017.4 1015.1 1013.3 1009.7 1008.3 1009.7 1015.4 1019.2 1018.3 1017.2 1015.4 MAX. QFF PRESSURE IN HPA 1038.7 1029.7 1029.8 1027.5 1020.9 1018.9 1014.5 1015.2 1023.7 1029.7 1027.9 1029.3 1038.7 DAY 9 1 6 9 2 17 12 21 23 31 20 28 MIN. QFF PRESSURE IN HPA 1012.5 999.9 1006.8 994.8 1004.5 1000.3 1000.7 1005.0 1007.7 1005.7 1005.4 1005.4 994.8 DAY 13 10 28 14 26 21 21 18 7 7 18 13 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BANDAR ANZALI (40718) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 49 28 E DATA PROCESSING CENTER ELEVATION -26.2 M MEANS AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1029.5 1019.1 1021.2 1019.0 1016.9 1013.0 1011.6 1013.1 1019.0 1023.1 1022.1 1021.1 1019.1 MAX. QFE PRESSURE IN HPA 1041.5 1033.6 1033.6 1031.5 1024.4 1021.5 1017.5 1019.0 1027.6 1033.3 1032.0 1034.2 1041.5 DAY 8 1 6 9 2 17 12 7 23 31 20 31 MIN. QFE PRESSURE IN HPA 1015.9 1003.3 1009.5 998.1 1009.6 1003.8 1004.5 1008.8 1010.9 1009.4 1009.1 1009.3 998.1 DAY 13 10 28 14 26 21 21 18 8 7 18 14 MEAN QNH PRESSURE IN HPA 1026.0 1015.7 1017.7 1015.6 1013.5 1009.6 1008.1 1009.7 1015.6 1019.6 1018.7 1017.7 1015.6 MAX. QNH PRESSURE IN HPA 1038.0 1030.1 1030.1 1028.0 1020.9 1018.0 1014.0 1015.5 1024.1 1029.8 1028.5 1030.7 1038.0 DAY 8 1 6 9 2 17 12 7 23 31 20 31 MIN. QNH PRESSURE IN HPA 1012.4 999.9 1006.1 994.7 1006.2 1000.4 1001.1 1005.4 1007.5 1006.0 1005.7 1005.9 994.7 DAY 13 10 28 14 26 21 21 18 8 7 18 14 MEAN QFF PRESSURE IN HPA 1026.2 1015.9 1018.0 1015.8 1013.9 1010.0 1008.6 1010.1 1015.8 ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1038.2 1030.3 1030.3 1028.2 1021.3 1018.4 1014.5 1016.0 1024.5 ****** ****** ****** ****** DAY 8 1 6 9 2 17 12 7 23 ** ** ** MIN. QFF PRESSURE IN HPA 1012.7 1000.2 1006.3 995.0 1006.6 1000.8 1001.6 1005.8 1007.9 ****** ****** ****** ****** DAY 13 10 28 14 26 21 21 18 8 ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1029.1 1018.8 1020.9 1018.9 1016.7 1012.7 1011.3 1012.7 1018.8 1022.6 1021.5 1020.9 1018.7 MAX. QFE PRESSURE IN HPA 1042.2 1033.6 1033.6 1031.3 1024.4 1021.4 1016.5 1019.0 1027.9 1032.6 1031.2 1035.2 1042.2 DAY 8 1 6 9 2 16 12 7 23 31 20 31 MIN. QFE PRESSURE IN HPA 1014.6 1000.4 1010.3 997.9 1009.2 1003.8 1004.3 1008.0 1010.4 1009.7 1008.1 1009.1 997.9 DAY 13 27 28 14 26 21 21 10 8 8 18 14 MEAN QNH PRESSURE IN HPA 1025.6 1015.3 1017.4 1015.4 1013.3 1009.2 1007.8 1009.3 1015.3 1019.1 1018.0 1017.4 1015.3 MAX. QNH PRESSURE IN HPA 1038.7 1030.1 1030.1 1027.8 1020.9 1017.9 1013.0 1015.5 1024.4 1029.1 1027.7 1031.7 1038.7 DAY 8 1 6 9 2 16 12 7 23 31 20 31 MIN. QNH PRESSURE IN HPA 1011.2 997.0 1006.9 994.5 1005.8 1000.4 1000.9 1004.6 1007.0 1006.3 1004.7 1005.7 994.5 DAY 13 27 28 14 26 21 21 10 8 8 18 14 MEAN QFF PRESSURE IN HPA 1025.9 1015.0 1017.6 1015.9 1013.4 1009.7 1008.2 1009.5 1015.7 ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1038.9 1023.2 1030.3 1028.0 1021.3 1018.3 1013.5 1016.0 1024.8 ****** ****** ****** ****** DAY 8 16 6 9 2 16 12 7 23 ** ** ** MIN. QFF PRESSURE IN HPA 1011.4 997.2 1007.1 994.8 1006.2 1000.8 1001.4 1005.0 1007.4 ****** ****** ****** ****** DAY 13 27 28 14 26 21 21 10 8 ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1028.3 1017.6 1019.7 1018.2 1015.5 1011.5 1010.1 1011.5 1017.7 1021.7 1020.5 1019.9 1017.7 MAX. QFE PRESSURE IN HPA 1042.2 1032.3 1032.2 1030.7 1023.0 1020.7 1015.7 1018.4 1026.9 1032.5 1029.5 1035.1 1042.2 DAY 8 1 6 9 2 16 12 7 23 31 20 31 MIN. QFE PRESSURE IN HPA 1013.7 999.2 1007.1 997.3 1008.6 1003.1 1003.2 1006.8 1009.1 1009.8 1008.3 1006.3 997.3 DAY 13 27 11 14 11 21 21 17 8 6 18 7 MEAN QNH PRESSURE IN HPA 1024.8 1014.1 1016.3 1014.7 1012.1 1008.1 1006.7 1008.1 1014.3 1018.2 1017.0 1016.5 1014.2 MAX. QNH PRESSURE IN HPA 1038.7 1028.8 1028.7 1027.2 1019.5 1017.2 1012.2 1014.9 1023.4 1029.0 1026.0 1031.6 1038.7 DAY 8 1 6 9 2 16 12 7 23 31 20 31 MIN. QNH PRESSURE IN HPA 1010.3 995.8 1003.7 993.9 1005.2 999.7 999.8 1003.4 1005.7 1006.4 1004.9 1002.9 993.9 DAY 13 27 11 14 11 21 21 17 8 6 18 7 MEAN QFF PRESSURE IN HPA 1025.0 1014.3 1016.5 1015.0 1012.5 1008.5 1007.1 1008.5 1014.5 ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1038.9 1029.0 1028.9 1027