STATION SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.9 0.7 9.1 15.0 20.5 23.9 25.9 24.1 22.8 15.0 8.1 2.3 14.1 MINIMUN AIR TEMPERATURE (C) -2.3 -3.7 2.9 7.7 13.4 17.1 19.4 18.5 16.2 10.7 4.1 -1.1 8.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 1 12 9 1 0 0 0 24 DAYS WITH MINIMUM TEMP. <=-4 9 12 0 0 0 0 0 0 0 0 0 6 27 DAYS WITH FREEZING MIN.<= 0 27 23 9 2 0 0 0 0 0 0 1 19 81 TEMPERATURE RECORDS LOWEST(C) -9.0 -11.0 -3.0 -1.0 8.0 9.0 13.0 14.0 12.0 4.0 0.0 -7.0 -11.0 DAY 31 9 8 5 7 9 3 22 28 31 11 29 MAXIMUM AIR TEMPERATURE (C) 5.5 4.4 14.1 20.5 25.8 30.1 32.4 30.4 27.9 20.7 13.6 7.1 19.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 6 16 27 20 9 0 0 0 78 DAYS WITH MAXIMUM TEMP. <= 0 0 4 0 0 0 0 0 0 0 0 0 0 4 TEMPERATURE RECORDS HIGHEST(C) 12.0 12.0 21.0 27.0 33.0 34.0 36.0 36.0 32.0 27.0 19.0 13.0 36.0 DAY 23 25 28 19 24 6 26 1 1 3 9 1 DIF. BETWEEN (MAX.-MIN.) (C) 7.8 8.1 11.2 12.8 12.4 13.0 13.0 11.9 11.7 10.0 9.5 8.2 10.8 MEAN DAILY TEMP. (MDT) (C) 1.6 0.3 8.5 14.1 19.6 23.6 25.9 24.4 22.0 15.7 8.9 3.0 14.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.5 29.5 80.0 149.0 106.5 44.5 0.0 0.0 0.0 410.0 HEATING DEG. DAYS(BASE 18 0C) 508.0 494.5 295.0 126.0 30.0 0.0 0.0 0.0 0.5 83.5 264.0 464.5 2266.0 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. 5.0 17.2 1.2 6.7 11.0 3.0 0.0 1.0 28.0 6.2 3.7 10.1 93.1 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 1 0 0 0 1 DAYS WITH PRECIPITATION >= 5 0 2 0 0 1 0 0 0 3 0 0 1 7 DAYS WITH PRECIPITATION >= 1 3 3 0 4 4 1 0 1 3 4 1 2 26 DAYS WITH PRECIPITATION 4 5 3 7 10 2 0 2 3 5 6 5 52 GREATEST DAILY PRECIPITATION 2.0 9.0 0.9 3.0 7.3 3.0 0.0 1.0 16.0 2.2 3.0 6.0 16.0 DAY 7 20 13 11 10 3 ** 10 8 19 10 7 DAY WITH THUNDER STORM 0 0 0 2 2 0 0 0 0 2 0 0 6 DAYS WITH SNOW OR SLEET 3 3 2 0 0 0 0 0 0 1 0 2 11 DAYS WITH DUST 1 1 0 1 1 3 0 0 0 2 0 1 10 WIND DIRECTION (PREVAILING) 225 360 360 225 45 360 360 360 360 360 360 360 360 PREVAILING WIND SPEED(KNOTS) 2.1 2.1 2.7 3.3 3.5 4.3 3.1 3.8 2.9 2.7 2.5 2.0 3.0 PREVAILING WIND PERCENT 26.9 26.8 22.6 26.7 18.8 41.0 41.9 50.0 43.8 36.6 27.1 35.5 32.8 CALMS PERCENT OF WIND 0.0 0.0 0.5 0.6 1.1 2.4 1.6 0.8 0.5 0.0 0.0 0.4 0.7 NO. OF WIND OBSERVATION 186 168 186 180 186 212 246 248 185 205 240 248 2490 VECTOR WIND DIRECTION (MEAN) 234 309 54 226 79 27 30 22 23 10 262 317 23 VECTOR WIND MAGNITUDE(KNOTS) 0.2 0.1 0.5 0.3 0.5 3.1 1.9 2.8 1.1 0.6 0.3 0.4 0.8 WIND STEADINESES (MEAN %) 9.5 4.8 20.8 10.7 17.9 67.4 63.3 71.8 36.7 21.4 12.5 20.0 28.6 WIND SPEED (MEAN KNOTS) 2.1 2.1 2.4 2.8 2.8 4.6 3.0 3.9 3.0 2.8 2.4 2.0 2.8 FASTEST WIND DIRECTION 270 310 230 360 230 230 360 360 90 360 360 230 90 FASTEST WIND SPEED (KNOTS) 13 6 13 24 20 24 15 24 28 18 9 9 28 DAY 5 20 16 1 6 2 12 11 12 31 1 17 DAYS WITH SKY CLEAR (0-2)/8 14 8 8 11 8 25 29 26 17 6 11 17 180 DAYS WITH P.CLOUDY (3-6)/8 12 13 15 11 13 5 2 5 12 19 13 13 133 DAYS WITH CLOUDY (7-8)/8 5 7 8 8 10 0 0 0 1 6 6 1 52 DAYS WITH VISIBILITY =< 2 KM 1 0 1 0 0 0 0 0 0 0 0 1 3 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 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 SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 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 SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 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 SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.1 5.1 8.5 14.0 18.9 22.5 26.9 23.3 19.8 16.2 ***** ***** ***** MINIMUN AIR TEMPERATURE (C) -2.0 0.8 3.2 9.0 13.3 16.4 20.0 17.4 14.2 9.3 ***** ***** ***** DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 2 3 14 2 0 0 **** **** **** DAYS WITH MINIMUM TEMP. <=-4 8 2 1 0 0 0 0 0 0 0 **** **** **** DAYS WITH FREEZING MIN.<= 0 27 11 8 0 0 0 0 0 0 0 **** **** **** TEMPERATURE RECORDS LOWEST(C) -6.0 -4.0 -5.0 4.0 4.0 10.0 16.0 13.0 10.0 6.0 ***** ***** ***** DAY 1 15 6 19 12 4 15 27 20 22 ** ** MAXIMUM AIR TEMPERATURE (C) 4.9 9.8 13.7 20.7 25.5 29.4 31.8 29.7 26.0 22.2 ***** ***** ***** DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 7 16 28 14 3 0 **** **** **** DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 **** **** **** TEMPERATURE RECORDS HIGHEST(C) 9.0 14.0 23.0 28.0 34.0 35.0 34.0 33.0 31.0 27.0 ***** ***** ***** DAY 23 6 31 11 30 28 1 2 1 7 ** ** DIF. BETWEEN (MAX.-MIN.) (C) 6.9 9.0 10.5 11.7 12.2 13.0 11.8 12.3 11.8 12.9 ***** ***** ***** MEAN DAILY TEMP. (MDT) (C) 1.4 5.3 8.5 14.9 19.4 22.9 25.9 23.5 20.1 15.8 ***** ***** ***** COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.5 34.5 68.5 152.5 80.0 20.0 0.0 ****** ****** ****** HEATING DEG. DAYS(BASE 18 0C) 513.5 368.5 295.0 102.5 36.0 0.5 0.0 0.0 5.5 76.0 ****** ****** ****** 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. 5.0 13.2 18.6 24.4 14.9 1.3 1.0 0.0 0.3 0.0 0.0 ****** ****** DAYS WITH PRECIPITATION >=10 0 0 0 1 0 0 0 0 0 0 0 **** **** DAYS WITH PRECIPITATION >= 5 0 1 1 1 1 0 0 0 0 0 0 **** **** DAYS WITH PRECIPITATION >= 1 2 2 6 8 5 1 1 0 0 0 0 **** **** DAYS WITH PRECIPITATION 5 5 7 10 7 3 1 0 2 0 0 **** **** GREATEST DAILY PRECIPITATION 3.0 9.6 5.0 12.0 5.0 1.0 1.0 0.0 0.2 0.0 0.0 ****** ****** DAY 11 13 2 24 8 24 20 ** 19 ** ** ** DAY WITH THUNDER STORM 0 2 0 0 3 0 0 0 1 0 0 **** **** DAYS WITH SNOW OR SLEET 3 2 0 0 0 0 0 0 0 0 0 **** **** DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 **** **** WIND DIRECTION (PREVAILING) 360 225 360 360 360 360 360 360 360 360 *** *** *** PREVAILING WIND SPEED(KNOTS) 2.4 2.4 2.1 2.4 2.7 4.1 3.8 2.5 2.6 2.3 **** **** **** PREVAILING WIND PERCENT 27.0 27.8 38.4 37.5 37.5 46.3 63.3 61.3 46.8 40.3 ***** ***** ***** CALMS PERCENT OF WIND 0.0 0.5 0.0 0.0 0.0 0.0 0.0 0.4 0.4 0.0 ***** ***** ***** NO. OF WIND OBSERVATION 248 205 219 240 248 240 188 248 231 186 76 **** 2329 VECTOR WIND DIRECTION (MEAN) 278 250 321 338 345 21 22 26 21 342 *** *** *** VECTOR WIND MAGNITUDE(KNOTS) 0.1 0.6 0.5 0.7 0.6 2.3 2.7 1.6 1.0 0.5 **** **** **** WIND STEADINESES (MEAN %) 4.5 26.1 21.7 26.9 20.7 59.0 69.2 61.5 40.0 21.7 ***** ***** ***** WIND SPEED (MEAN KNOTS) 2.2 2.3 2.3 2.6 2.9 3.9 3.9 2.6 2.5 2.3 **** **** **** FASTEST WIND DIRECTION 360 270 230 270 270 360 360 50 180 270 *** *** *** FASTEST WIND SPEED (KNOTS) 9 18 13 17 19 24 13 18 13 16 *** *** *** DAY 28 23 23 18 3 20 23 20 6 26 ** ** DAYS WITH SKY CLEAR (0-2)/8 10 12 6 10 11 25 28 30 26 26 9 **** **** DAYS WITH P.CLOUDY (3-6)/8 13 11 19 8 16 3 3 1 4 4 4 **** **** DAYS WITH CLOUDY (7-8)/8 8 6 6 12 4 2 0 0 0 1 0 **** **** DAYS WITH VISIBILITY =< 2 KM 4 3 1 0 2 0 0 0 0 0 0 **** **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.1 5.1 5.6 13.8 ***** ***** ***** ***** ***** ***** ***** 0.1 ***** MINIMUN AIR TEMPERATURE (C) -0.4 1.5 1.3 8.6 13.1 17.6 19.5 18.9 13.9 8.2 2.8 -2.5 8.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 6 8 6 0 0 0 0 20 DAYS WITH MINIMUM TEMP. <=-4 0 0 3 0 0 0 0 0 0 0 0 10 13 DAYS WITH FREEZING MIN.<= 0 16 9 13 1 0 0 0 0 0 3 8 27 77 TEMPERATURE RECORDS LOWEST(C) -3.0 -3.0 -6.0 0.0 8.0 10.0 18.0 14.0 9.0 -2.0 -2.0 -8.0 -8.0 DAY 15 14 26 1 5 3 4 19 27 29 6 25 MAXIMUM AIR TEMPERATURE (C) 7.5 10.6 11.3 19.9 24.7 30.0 31.1 ***** ***** ***** ***** 3.1 ***** DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 16 16 **** **** **** **** 0 **** DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 **** **** **** **** 4 **** TEMPERATURE RECORDS HIGHEST(C) 12.0 18.0 18.0 27.0 28.0 34.0 38.0 ***** ***** ***** ***** 7.0 ***** DAY 24 18 3 27 11 14 5 ** ** ** ** 8 DIF. BETWEEN (MAX.-MIN.) (C) 7.9 9.1 10.0 11.3 11.6 12.4 11.6 ***** ***** ***** ***** 5.6 ***** MEAN DAILY TEMP. (MDT) (C) 3.5 6.0 6.3 14.2 18.9 23.8 25.3 ***** ***** ***** ***** 0.3 ***** COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 2.0 77.0 104.0 ****** ****** 0.0 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C) 362.0 335.0 363.0 118.5 13.0 2.0 0.0 ****** ****** 0.0 57.5 548.5 ****** 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. 5.5 15.6 14.4 22.0 14.2 0.7 2.7 0.0 0.0 0.3 1.6 7.8 84.8 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH PRECIPITATION >= 5 0 1 1 2 1 0 0 0 0 0 0 0 5 DAYS WITH PRECIPITATION >= 1 1 5 5 6 3 0 1 0 0 0 1 3 25 DAYS WITH PRECIPITATION 8 8 12 8 11 2 4 0 0 1 3 9 66 GREATEST DAILY PRECIPITATION 4.0 7.0 8.0 8.0 7.0 0.5 2.0 0.0 0.0 0.3 1.0 3.0 8.0 DAY 13 24 21 11 28 8 26 ** ** 21 29 15 DAY WITH THUNDER STORM 1 1 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH SNOW OR SLEET 2 1 0 0 0 0 0 0 0 0 2 4 9 DAYS WITH DUST 0 0 1 1 0 0 0 0 0 0 0 0 2 WIND DIRECTION (PREVAILING) 360 360 360 360 *** *** *** *** *** *** *** 360 *** PREVAILING WIND SPEED(KNOTS) 2.0 2.0 2.3 2.3 **** **** **** **** **** **** **** 2.4 **** PREVAILING WIND PERCENT 31.0 32.1 31.5 33.2 ***** ***** ***** ***** ***** ***** ***** 31.0 ***** CALMS PERCENT OF WIND 0.6 0.0 0.0 1.6 ***** ***** ***** ***** ***** ***** ***** 1.6 ***** NO. OF WIND OBSERVATION 171 224 248 187 116 92 96 48 45 93 98 184 1602 VECTOR WIND DIRECTION (MEAN) 256 248 251 335 *** *** *** *** *** *** *** 334 *** VECTOR WIND MAGNITUDE(KNOTS) 0.5 0.5 1.0 0.3 **** **** **** **** **** **** **** 0.2 **** WIND STEADINESES (MEAN %) 23.8 21.7 34.5 11.5 ***** ***** ***** ***** ***** ***** ***** 8.0 ***** WIND SPEED (MEAN KNOTS) 2.1 2.3 2.9 2.6 **** **** **** **** **** **** **** 2.5 **** FASTEST WIND DIRECTION 230 230 230 230 *** *** *** *** *** *** *** 50 *** FASTEST WIND SPEED (KNOTS) 6 18 40 24 *** *** *** *** *** *** *** 9 *** DAY 24 25 13 21 ** ** ** ** ** ** ** 9 DAYS WITH SKY CLEAR (0-2)/8 9 8 6 8 6 18 18 11 15 15 8 9 131 DAYS WITH P.CLOUDY (3-6)/8 14 12 18 12 14 5 6 4 0 14 15 13 127 DAYS WITH CLOUDY (7-8)/8 2 8 7 10 9 0 0 1 0 2 7 9 55 DAYS WITH VISIBILITY =< 2 KM 2 0 1 1 0 0 0 0 0 0 1 1 6 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.1 1.8 6.5 13.2 20.0 22.7 24.3 22.8 19.7 13.7 7.9 3.2 13.0 MINIMUN AIR TEMPERATURE (C) -3.0 -1.1 2.4 8.4 13.9 17.0 19.5 17.0 14.3 8.5 4.4 0.3 8.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 9 1 0 0 0 0 10 DAYS WITH MINIMUM TEMP. <=-4 10 3 4 0 0 0 0 0 0 0 0 0 17 DAYS WITH FREEZING MIN.<= 0 30 20 10 1 0 0 0 0 0 0 4 18 83 TEMPERATURE RECORDS LOWEST(C) -9.0 -6.0 -8.0 0.0 7.0 13.0 16.0 12.0 9.0 5.0 -3.0 -3.0 -9.0 DAY 18 22 1 8 19 21 12 18 26 18 29 16 MAXIMUM AIR TEMPERATURE (C) 4.3 5.8 11.4 18.8 26.9 29.2 30.1 29.0 25.6 20.0 12.2 7.2 18.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 5 15 18 13 2 0 0 0 53 DAYS WITH MAXIMUM TEMP. <= 0 3 0 2 0 0 0 0 0 0 0 0 0 5 TEMPERATURE RECORDS HIGHEST(C) 12.0 10.0 19.0 28.0 33.0 34.0 33.0 32.0 30.0 23.0 19.0 10.0 34.0 DAY 28 5 24 28 31 1 7 14 1 4 2 24 DIF. BETWEEN (MAX.-MIN.) (C) 7.3 6.9 9.0 10.4 13.0 12.2 10.6 12.0 11.3 11.5 7.8 6.9 9.9 MEAN DAILY TEMP. (MDT) (C) 0.7 2.3 6.9 13.6 20.4 23.1 24.8 23.0 19.9 14.2 8.3 3.7 13.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.5 25.0 64.5 118.5 68.0 18.0 0.0 0.0 0.0 295.5 HEATING DEG. DAYS(BASE 18 0C) 537.5 438.5 344.0 147.0 9.0 0.0 0.0 0.0 7.0 117.0 291.5 442.0 2333.5 DEWPOINT (MEAN C) -3.5 -2.0 0.6 5.2 7.1 8.5 12.1 9.5 7.7 5.1 2.6 -1.1 4.3 MIXING RATIO (G/KG) 3.49 3.90 4.82 6.54 7.54 8.28 10.60 8.80 7.82 6.43 5.41 4.12 6.48 VAPOUR PRESSURE (HPA) 4.81 5.37 6.64 8.97 10.33 11.31 14.42 12.03 10.73 8.87 7.48 5.71 8.89 SATURATION DEF. (HPA) 1.51 1.72 3.65 7.15 14.24 17.16 16.69 16.59 13.03 7.30 3.48 2.07 8.72 RELATIVE HUMIDITY (MEAN %) 78 78 70 61 46 42 49 44 48 58 70 74 60 RELATIVE HUMIDITY (MAX. %) 92 91 85 77 65 57 64 59 63 75 82 84 75 RELATIVE HUMIDITY (MIN. %) 57 59 53 44 27 27 34 30 33 40 57 63 44 RELATIVE HUMIDITY (MEAN% 03UTC) 87 86 81 72 60 53 61 54 57 68 76 78 69 RELATIVE HUMIDITY (MEAN% 09UTC) 63 65 60 49 31 29 36 32 36 43 61 69 48 RELATIVE HUMIDITY (MEAN% 15UTC) 83 75 66 55 43 42 46 40 45 56 70 75 58 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 3.8 24.6 20.6 20.8 3.3 0.0 4.7 2.0 0.0 0.0 4.9 12.0 96.7 DAYS WITH PRECIPITATION >=10 0 0 0 1 0 0 0 0 0 0 0 0 1 DAYS WITH PRECIPITATION >= 5 0 2 1 1 0 0 0 0 0 0 0 1 5 DAYS WITH PRECIPITATION >= 1 2 5 6 5 1 0 2 1 0 0 1 3 26 DAYS WITH PRECIPITATION 10 11 8 12 5 1 10 2 1 1 9 5 75 GREATEST DAILY PRECIPITATION 1.5 9.2 8.0 10.1 3.0 0.0 3.4 2.0 0.0 0.0 3.0 9.0 10.1 DAY 3 8 14 7 18 ** 29 14 ** ** 7 7 DAY WITH THUNDER STORM 0 0 4 3 3 0 6 0 0 0 0 0 16 DAYS WITH SNOW OR SLEET 8 10 3 0 0 0 0 0 0 0 0 2 23 DAYS WITH DUST 0 0 0 0 1 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 360 360 360 360 360 360 360 360 360 360 225 360 360 PREVAILING WIND SPEED(KNOTS) 2.4 2.9 2.9 3.2 3.7 5.4 6.2 5.4 4.4 2.7 2.5 2.1 3.9 PREVAILING WIND PERCENT 35.9 34.4 38.7 41.7 31.5 57.9 59.3 39.5 51.7 34.3 35.0 35.9 41.2 CALMS PERCENT OF WIND 1.2 0.0 0.0 0.0 0.8 0.0 0.0 2.8 2.1 2.8 0.0 0.8 0.9 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 330 347 359 357 356 16 12 4 11 324 300 288 360 VECTOR WIND MAGNITUDE(KNOTS) 0.5 0.6 0.7 1.3 0.6 3.5 3.8 1.9 2.1 0.8 0.6 0.8 1.3 WIND STEADINESES (MEAN %) 18.5 19.4 23.3 37.1 16.7 68.6 67.9 41.3 52.5 25.8 23.1 36.4 36.1 WIND SPEED (MEAN KNOTS) 2.7 3.1 3.0 3.5 3.6 5.1 5.6 4.6 4.0 3.1 2.6 2.2 3.6 FASTEST WIND DIRECTION 200 50 310 360 230 360 360 180 360 30 120 270 30 FASTEST WIND SPEED (KNOTS) 32 18 13 18 16 18 21 18 18 36 10 8 36 DAY 12 15 13 7 13 17 28 14 14 19 26 3 DAYS WITH SKY CLEAR (0-2)/8 13 1 9 2 18 22 12 29 26 22 7 9 170 DAYS WITH P.CLOUDY (3-6)/8 13 17 11 17 11 8 16 2 4 9 13 14 135 DAYS WITH CLOUDY (7-8)/8 5 10 11 11 2 0 3 0 0 0 10 8 60 DAYS WITH VISIBILITY =< 2 KM 0 1 0 0 0 0 0 0 0 3 0 3 7 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 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 861.4 861.8 864.9 862.0 862.7 862.0 860.8 863.0 865.0 867.9 868.8 868.1 864.0 MAX. QFE PRESSURE IN HPA 869.2 874.0 876.7 871.1 871.0 866.0 864.0 868.4 870.5 875.7 874.5 880.0 880.0 DAY-HOUR 18- 6 22- 6 4-12 30- 6 1- 6 21- 3 31- 6 31- 6 23- 6 12- 6 29- 6 16- 6 MIN. QFE PRESSURE IN HPA 853.8 848.1 852.6 854.5 856.9 858.1 856.2 857.4 860.6 861.2 863.9 857.3 848.1 DAY-HOUR 11-18 8-18 25- 0 4-12 28-12 8-15 22-15 10-12 17-12 3- 0 6-12 7-12 MEAN QNH PRESSURE IN HPA 1012.6 1013.1 1016.6 1013.3 1014.0 1013.2 1011.8 1014.4 1016.7 1020.0 1021.0 1020.3 1015.6 MAX. QNH PRESSURE IN HPA 1021.5 1027.0 1030.0 1023.6 1023.5 1017.8 1015.6 1020.6 1023.0 1028.9 1027.5 1033.8 1033.8 DAY-HOUR 18- 6 22- 6 4-12 30- 6 1- 6 21- 3 31- 6 31- 6 23- 6 12- 6 29- 6 16- 6 MIN. QNH PRESSURE IN HPA 1003.9 997.4 1002.6 1004.7 1007.5 1008.8 1006.7 1008.0 1011.7 1012.4 1015.4 1007.9 997.4 DAY-HOUR 11-18 8-18 25- 0 4-12 28-12 8-15 22-15 10-12 17-12 3- 0 6-12 7-12 MEAN QFF PRESSURE IN HPA 1016.0 1015.4 1016.4 1008.9 1006.0 1003.7 1001.2 1004.8 1008.7 1015.5 1019.9 1022.0 1011.5 MAX. QFF PRESSURE IN HPA 1029.2 1032.8 1033.4 1017.2 1017.6 1011.7 1006.3 1011.4 1017.4 1024.7 1031.3 1038.1 1038.1 DAY-HOUR 18- 6 22- 6 2- 6 30- 3 1- 6 21- 3 12- 6 19- 3 23- 3 12- 6 29- 6 16- 3 MIN. QFF PRESSURE IN HPA 1004.9 998.7 996.6 1000.6 996.1 998.5 995.6 996.3 1002.5 1007.3 1010.4 1009.3 995.6 DAY-HOUR 28-12 8-18 25- 0 4-12 28-12 1-12 22-12 11-12 2-12 3- 0 2-12 7-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 861.2 861.6 864.9 862.0 862.8 862.1 860.7 863.1 865.0 867.8 868.7 868.1 864.0 MAX. QFE PRESSURE IN HPA 868.5 871.9 873.2 870.8 869.5 865.5 863.0 867.1 869.2 874.5 872.8 879.3 879.3 DAY 18 22 2 30 1 22 31 31 22 12 29 16 MIN. QFE PRESSURE IN HPA 854.0 850.5 852.6 855.8 858.1 859.7 858.6 858.7 862.3 861.2 864.5 861.6 850.5 DAY 12 9 25 7 28 9 22 11 17 3 25 31 MEAN QNH PRESSURE IN HPA 1012.4 1012.8 1016.5 1013.3 1014.2 1013.4 1011.8 1014.5 1016.7 1019.9 1020.9 1020.3 1015.6 MAX. QNH PRESSURE IN HPA 1020.7 1024.6 1026.0 1023.3 1021.8 1017.3 1014.4 1019.1 1021.5 1027.5 1025.6 1033.0 1033.0 DAY 18 22 2 30 1 22 31 31 22 12 29 16 MIN. QNH PRESSURE IN HPA 1004.2 1000.2 1002.6 1006.2 1008.8 1010.7 1009.4 1009.5 1013.6 1012.4 1016.1 1012.8 1000.2 DAY 12 9 25 7 28 9 22 11 17 3 25 31 MEAN QFF PRESSURE IN HPA 1015.3 1014.7 1016.1 1008.7 1006.2 1003.8 1001.2 1004.9 1008.4 1015.1 1019.4 1021.7 1011.3 MAX. QFF PRESSURE IN HPA 1027.0 1029.3 1032.1 1016.1 1015.0 1009.8 1005.2 1010.2 1015.3 1022.8 1029.0 1036.6 1036.6 DAY 18 22 2 30 1 21 12 19 23 12 29 16 MIN. QFF PRESSURE IN HPA 1006.2 1002.0 996.6 1002.8 998.3 1001.0 997.4 998.1 1004.0 1007.3 1011.7 1012.0 996.6 DAY 28 9 25 7 28 9 23 11 3 3 3 31 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 861.5 861.8 865.1 862.1 863.4 862.7 861.4 863.6 865.7 868.1 868.9 868.2 864.4 MAX. QFE PRESSURE IN HPA 868.6 872.7 873.3 870.6 870.0 866.0 863.9 867.6 870.0 874.8 873.5 879.6 879.6 DAY 18 22 2 30 1 21 20 31 23 12 29 16 MIN. QFE PRESSURE IN HPA 855.6 851.4 853.2 855.8 858.7 860.5 858.7 859.5 862.7 861.8 865.0 860.6 851.4 DAY 12 9 25 7 28 9 29 11 17 3 3 7 MEAN QNH PRESSURE IN HPA 1012.7 1013.1 1016.8 1013.4 1014.8 1014.1 1012.6 1015.1 1017.5 1020.2 1021.2 1020.4 1016.0 MAX. QNH PRESSURE IN HPA 1020.8 1025.5 1026.2 1023.1 1022.4 1017.8 1015.4 1019.7 1022.4 1027.9 1026.4 1033.3 1033.3 DAY 18 22 2 30 1 21 20 31 23 12 29 16 MIN. QNH PRESSURE IN HPA 1006.0 1001.2 1003.2 1006.2 1009.5 1011.6 1009.5 1010.4 1014.1 1013.0 1016.7 1011.7 1001.2 DAY 12 9 25 7 28 9 29 11 17 3 3 7 MEAN QFF PRESSURE IN HPA 1016.7 1015.8 1017.2 1009.8 1007.6 1005.4 1002.7 1006.2 1010.3 1016.7 1020.7 1022.7 1012.7 MAX. QFF PRESSURE IN HPA 1028.1 1031.2 1033.1 1017.2 1016.7 1011.7 1006.2 1011.4 1017.4 1024.4 1030.7 1038.1 1038.1 DAY 18 22 2 30 1 21 12 19 23 13 29 16 MIN. QFF PRESSURE IN HPA 1007.9 1003.5 998.2 1004.2 999.4 1002.3 999.6 1000.5 1006.1 1009.7 1013.8 1012.7 998.2 DAY 28 9 25 7 28 9 23 11 3 3 3 31 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 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 862.5 862.8 866.1 862.8 863.7 862.8 861.6 864.0 866.2 869.0 869.8 869.2 865.0 MAX. QFE PRESSURE IN HPA 869.2 874.0 874.2 871.1 871.0 866.0 864.0 868.4 870.5 875.7 874.5 880.0 880.0 DAY 18 22 2 30 1 21 31 31 23 12 29 16 MIN. QFE PRESSURE IN HPA 856.3 852.8 854.8 856.9 859.4 860.5 859.0 860.0 863.0 862.7 866.1 859.5 852.8 DAY 22 9 25 4 28 10 22 11 17 3 3 7 MEAN QNH PRESSURE IN HPA 1013.9 1014.2 1017.9 1014.1 1015.2 1014.2 1012.9 1015.5 1018.0 1021.2 1022.2 1021.4 1016.7 MAX. QNH PRESSURE IN HPA 1021.5 1027.0 1027.2 1023.6 1023.5 1017.8 1015.6 1020.6 1023.0 1028.9 1027.5 1033.8 1033.8 DAY 18 22 2 30 1 21 31 31 23 12 29 16 MIN. QNH PRESSURE IN HPA 1006.8 1002.8 1005.1 1007.5 1010.3 1011.6 1009.9 1011.0 1014.4 1014.1 1017.9 1010.4 1002.8 DAY 22 9 25 4 28 10 22 11 17 3 3 7 MEAN QFF PRESSURE IN HPA 1017.7 1016.9 1018.0 1009.8 1007.2 1004.5 1002.2 1005.9 1010.0 1016.9 1021.3 1023.6 1012.8 MAX. QFF PRESSURE IN HPA 1029.2 1032.8 1033.4 1017.0 1017.6 1009.6 1006.3 1011.3 1016.9 1024.7 1031.3 1037.9 1037.9 DAY 18 22 2 30 1 21 12 19 23 12 29 16 MIN. QFF PRESSURE IN HPA 1008.3 1005.2 999.9 1004.9 999.4 1001.5 998.4 999.9 1005.5 1009.6 1014.3 1012.5 998.4 DAY 28 9 25 4 28 9 29 11 3 3 3 7 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 861.5 862.1 865.2 862.0 862.8 861.9 860.8 863.0 864.9 867.8 868.6 867.9 864.0 MAX. QFE PRESSURE IN HPA 868.3 873.7 873.3 870.2 870.0 865.6 863.2 866.8 869.0 874.0 873.4 878.1 878.1 DAY 18 22 2 30 1 21 31 31 22 12 29 16 MIN. QFE PRESSURE IN HPA 855.3 853.4 854.3 855.8 858.4 859.2 858.1 858.8 861.8 862.5 864.5 858.3 853.4 DAY 22 9 25 4 28 9 22 11 17 3 3 7 MEAN QNH PRESSURE IN HPA 1012.7 1013.4 1016.9 1013.2 1014.1 1013.2 1011.9 1014.4 1016.6 1019.9 1020.8 1020.0 1015.6 MAX. QNH PRESSURE IN HPA 1020.5 1026.6 1026.2 1022.6 1022.4 1017.4 1014.6 1018.7 1021.3 1027.0 1026.3 1031.6 1031.6 DAY 18 22 2 30 1 21 31 31 22 12 29 16 MIN. QNH PRESSURE IN HPA 1005.6 1003.5 1004.5 1006.2 1009.2 1010.1 1008.8 1009.6 1013.0 1013.8 1016.1 1009.1 1003.5 DAY 22 9 25 4 28 9 22 11 17 3 3 7 MEAN QFF PRESSURE IN HPA 1015.5 1015.4 1016.4 1008.4 1005.4 1003.0 1000.7 1004.1 1008.0 1014.7 1019.1 1021.3 1011.0 MAX. QFF PRESSURE IN HPA 1026.9 1031.9 1032.2 1015.0 1015.8 1008.8 1005.0 1009.6 1014.6 1021.9 1029.2 1034.9 1034.9 DAY 18 22 2 30 1 21 12 19 23 12 29 16 MIN. QFF PRESSURE IN HPA 1005.9 1005.8 998.9 1002.6 997.2 999.4 997.0 998.1 1003.6 1008.3 1011.6 1010.7 997.0 DAY 28 9 25 4 28 9 22 11 10 3 2 7 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 860.8 861.2 864.3 861.0 861.4 860.9 859.9 862.1 863.8 866.9 867.8 867.3 863.1 MAX. QFE PRESSURE IN HPA 867.6 872.3 876.7 868.5 865.8 865.0 862.7 865.5 868.4 872.8 872.0 876.6 876.7 DAY 15 22 4 29 24 21 31 31 22 12 29 16 MIN. QFE PRESSURE IN HPA 854.5 851.4 853.2 854.5 856.9 858.3 856.6 857.4 860.6 862.0 863.9 857.3 851.4 DAY 28 8 25 4 28 9 22 10 17 3 6 7 MEAN QNH PRESSURE IN HPA 1011.9 1012.3 1015.9 1012.1 1012.6 1012.0 1010.9 1013.4 1015.4 1018.9 1019.9 1019.4 1014.5 MAX. QNH PRESSURE IN HPA 1019.7 1025.0 1030.0 1020.7 1017.6 1016.7 1014.1 1017.3 1020.6 1025.6 1024.7 1029.9 1030.0 DAY 15 22 4 29 24 21 31 31 22 12 29 16 MIN. QNH PRESSURE IN HPA 1004.7 1001.2 1003.2 1004.7 1007.5 1009.1 1007.1 1008.0 1011.7 1013.3 1015.4 1007.9 1001.2 DAY 28 8 25 4 28 9 22 10 17 3 6 7 MEAN QFF PRESSURE IN HPA 1014.8 1014.2 1015.1 1007.5 1004.4 1002.4 1000.2 1003.6 1007.2 1014.0 1018.4 1020.6 1010.2 MAX. QFF PRESSURE IN HPA 1025.0 1029.9 1033.4 1012.6 1010.0 1009.4 1004.6 1008.3 1013.9 1020.4 1027.8 1033.3 1033.4 DAY 18 22 4 30 19 21 31 19 22 12 29 16 MIN. QFF PRESSURE IN HPA 1004.9 1002.5 997.9 1000.6 996.1 998.5 995.6 996.3 1002.5 1007.9 1010.4 1009.3 995.6 DAY 28 8 25 4 28 1 22 11 2 3 2 7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 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 861.4 861.5 864.3 861.3 861.7 861.1 859.9 862.1 864.2 867.4 868.7 868.1 863.5 MAX. QFE PRESSURE IN HPA 868.0 872.4 872.4 869.4 869.1 864.7 862.7 865.7 869.8 874.0 872.6 878.0 878.0 DAY 15 22 2 29 1 21 31 31 22 12 26 15 MIN. QFE PRESSURE IN HPA 855.0 849.4 855.0 856.0 857.4 858.1 856.2 857.7 861.0 862.4 864.0 860.2 849.4 DAY 28 8 25 4 27 8 22 10 17 2 2 7 MEAN QNH PRESSURE IN HPA 1012.5 1012.7 1015.9 1012.4 1013.0 1012.3 1010.9 1013.4 1015.8 1019.5 1020.9 1020.2 1014.9 MAX. QNH PRESSURE IN HPA 1020.1 1025.1 1025.1 1021.7 1021.4 1016.4 1014.1 1017.5 1022.2 1027.0 1025.4 1031.5 1031.5 DAY 15 22 2 29 1 21 31 31 22 12 26 15 MIN. QNH PRESSURE IN HPA 1005.3 998.9 1005.3 1006.4 1008.0 1008.8 1006.7 1008.4 1012.1 1013.7 1015.6 1011.2 998.9 DAY 28 8 25 4 27 8 22 10 17 2 2 7 MEAN QFF PRESSURE IN HPA 1016.4 1015.4 1016.1 1008.7 1005.6 1003.4 1000.9 1004.2 1008.6 1015.8 1020.4 1022.4 1011.5 MAX. QFF PRESSURE IN HPA 1025.9 1030.5 1031.8 1015.5 1016.3 1009.7 1004.8 1009.4 1016.4 1023.9 1029.2 1035.5 1035.5 DAY 18 22 2 29 1 21 31 18 22 12 29 15 MIN. QFF PRESSURE IN HPA 1006.8 1000.5 1001.2 1003.8 997.3 999.4 995.9 997.8 1004.4 1009.5 1012.1 1012.7 995.9 DAY 28 8 24 4 28 8 22 10 2 3 2 7 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 861.4 862.0 865.1 862.4 862.9 862.0 860.9 863.2 865.2 868.1 869.1 868.3 864.2 MAX. QFE PRESSURE IN HPA 867.9 872.1 873.3 870.7 869.1 865.7 864.0 866.7 870.0 874.5 873.4 879.5 879.5 DAY 15 22 1 29 1 21 31 30 22 11 26 15 MIN. QFE PRESSURE IN HPA 853.8 848.1 854.5 857.6 859.0 859.0 857.6 858.2 862.5 862.4 864.6 861.5 848.1 DAY 11 8 24 9 27 8 28 10 17 2 24 7 MEAN QNH PRESSURE IN HPA 1012.6 1013.3 1016.8 1013.7 1014.3 1013.3 1012.0 1014.6 1017.0 1020.3 1021.3 1020.5 1015.8 MAX. QNH PRESSURE IN HPA 1020.0 1024.8 1026.2 1023.2 1021.4 1017.5 1015.6 1018.6 1022.4 1027.5 1026.3 1033.2 1033.2 DAY 15 22 1 29 1 21 31 30 22 11 26 15 MIN. QNH PRESSURE IN HPA 1003.9 997.4 1004.7 1008.3 1009.9 1009.9 1008.3 1008.9 1013.8 1013.7 1016.2 1012.7 997.4 DAY 11 8 24 9 27 8 28 10 17 2 24 7 MEAN QFF PRESSURE IN HPA 1016.4 1016.0 1016.7 1009.4 1006.2 1003.7 1001.4 1005.0 1009.0 1015.9 1020.5 1022.6 1011.9 MAX. QFF PRESSURE IN HPA 1026.2 1030.1 1032.5 1016.3 1015.2 1009.2 1005.8 1009.9 1015.8 1022.5 1028.0 1036.8 1036.8 DAY 17 22 1 29 1 21 31 19 22 11 26 15 MIN. QFF PRESSURE IN HPA 1006.9 998.7 999.6 1003.8 999.5 999.9 997.1 998.1 1004.8 1009.9 1012.3 1014.2 997.1 DAY 11 8 24 1 28 8 22 10 2 2 2 30 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 861.3 861.7 864.9 862.6 862.9 862.1 860.8 863.2 865.1 868.0 868.8 868.1 864.1 MAX. QFE PRESSURE IN HPA 868.6 871.4 873.1 870.9 869.7 865.6 863.5 866.9 869.2 874.5 872.6 879.5 879.5 DAY 17 22 1 29 1 21 31 30 21 11 26 15 MIN. QFE PRESSURE IN HPA 853.9 849.6 853.4 857.4 858.6 859.4 858.1 858.6 862.2 861.8 864.1 862.1 849.6 DAY 11 8 24 4 27 8 28 10 16 2 24 30 MEAN QNH PRESSURE IN HPA 1012.5 1012.9 1016.5 1013.9 1014.3 1013.3 1011.9 1014.6 1016.8 1020.1 1021.1 1020.3 1015.7 MAX. QNH PRESSURE IN HPA 1020.8 1024.0 1025.9 1023.4 1022.1 1017.4 1015.0 1018.9 1021.5 1027.5 1025.4 1033.2 1033.2 DAY 17 22 1 29 1 21 31 30 21 11 26 15 MIN. QNH PRESSURE IN HPA 1004.0 999.1 1003.5 1008.0 1009.4 1010.3 1008.8 1009.4 1013.5 1013.0 1015.7 1013.4 999.1 DAY 11 8 24 4 27 8 28 10 16 2 24 30 MEAN QFF PRESSURE IN HPA 1015.4 1015.0 1015.9 1009.1 1005.6 1003.2 1000.8 1004.3 1008.4 1015.0 1019.5 1021.6 1011.1 MAX. QFF PRESSURE IN HPA 1026.4 1028.7 1032.0 1016.3 1015.3 1008.7 1004.6 1009.2 1014.2 1022.0 1027.7 1036.5 1036.5 DAY 17 22 1 29 1 20 31 19 30 12 28 15 MIN. QFF PRESSURE IN HPA 1005.9 1000.6 997.3 1003.9 998.9 999.7 996.9 998.1 1004.3 1008.0 1012.2 1012.8 996.9 DAY 27 8 24 1 27 8 22 10 2 2 2 30 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.8 5.4 7.7 14.4 18.2 23.2 26.3 25.7 20.5 13.4 9.0 3.4 14.1 MINIMUN AIR TEMPERATURE (C) -1.4 0.9 3.6 9.2 12.9 17.8 21.1 20.3 15.3 8.3 5.0 0.8 9.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 4 20 17 0 0 0 0 41 DAYS WITH MINIMUM TEMP. <=-4 5 2 0 0 0 0 0 0 0 0 0 0 7 DAYS WITH FREEZING MIN.<= 0 27 11 5 2 0 0 0 0 0 0 0 14 59 TEMPERATURE RECORDS LOWEST(C) -5.0 -5.0 -2.0 -2.0 7.0 13.0 18.0 16.0 11.0 4.0 1.0 -2.0 -5.0 DAY 10 25 5 12 9 12 6 18 24 14 18 21 MAXIMUM AIR TEMPERATURE (C) 6.4 11.5 13.1 21.1 24.4 30.2 33.3 32.5 26.6 19.7 14.9 7.6 20.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 1 19 30 21 2 0 0 0 73 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 9.0 18.0 18.0 29.0 30.0 38.0 37.0 37.0 31.0 24.0 20.0 13.0 38.0 DAY 15 28 3 6 30 9 26 2 2 7 3 1 DIF. BETWEEN (MAX.-MIN.) (C) 7.8 10.6 9.5 11.9 11.5 12.4 12.2 12.2 11.3 11.4 9.9 6.8 10.6 MEAN DAILY TEMP. (MDT) (C) 2.5 6.2 8.3 15.1 18.6 24.0 27.2 26.4 20.9 14.0 10.0 4.2 14.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 9.0 95.5 192.5 167.0 24.0 0.0 0.0 0.0 488.0 HEATING DEG. DAYS(BASE 18 0C) 481.0 330.5 300.0 99.5 30.0 0.0 0.0 0.0 2.0 123.5 240.5 428.0 2035.0 DEWPOINT (MEAN C) -3.0 -2.6 0.6 2.9 6.5 8.8 12.3 11.8 9.4 4.2 0.5 -1.2 4.2 MIXING RATIO (G/KG) 3.59 3.71 4.75 5.71 7.14 8.41 10.66 10.25 8.71 6.04 4.67 4.11 6.48 VAPOUR PRESSURE (HPA) 4.98 5.12 6.53 7.85 9.81 11.50 14.47 13.95 11.93 8.35 6.46 5.66 8.88 SATURATION DEF. (HPA) 2.12 4.25 4.36 9.72 11.92 18.01 20.74 20.54 12.84 7.59 5.38 2.25 9.98 RELATIVE HUMIDITY (MEAN %) 72 58 63 48 49 41 43 44 50 55 57 73 54 RELATIVE HUMIDITY (MAX. %) 84 74 79 65 63 55 56 58 64 67 70 83 68 RELATIVE HUMIDITY (MIN. %) 56 41 47 33 35 30 31 30 36 41 42 60 40 RELATIVE HUMIDITY (MEAN% 03UTC) 78 69 72 59 59 51 52 55 61 64 67 78 64 RELATIVE HUMIDITY (MEAN% 09UTC) 63 45 54 38 37 31 32 33 39 43 46 64 44 RELATIVE HUMIDITY (MEAN% 15UTC) 70 53 58 41 44 37 41 39 48 54 56 72 51 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 10.2 0.1 47.9 8.2 11.0 0.0 0.0 0.0 6.0 0.0 7.0 11.4 101.8 DAYS WITH PRECIPITATION >=10 0 0 1 0 0 0 0 0 0 0 0 0 1 DAYS WITH PRECIPITATION >= 5 1 0 4 0 0 0 0 0 0 0 1 1 7 DAYS WITH PRECIPITATION >= 1 1 0 11 3 4 0 0 0 2 0 1 2 24 DAYS WITH PRECIPITATION 7 1 13 8 7 1 1 0 4 0 1 6 49 GREATEST DAILY PRECIPITATION 9.0 0.1 12.0 4.0 4.2 0.0 0.0 0.0 4.0 0.0 7.0 6.0 12.0 DAY 6 2 13 9 22 ** ** ** 18 ** 15 5 DAY WITH THUNDER STORM 0 0 3 3 1 0 2 0 2 0 1 1 13 DAYS WITH SNOW OR SLEET 4 3 4 0 0 0 0 0 0 0 0 2 13 DAYS WITH DUST 0 2 0 0 2 0 0 0 1 0 3 0 8 WIND DIRECTION (PREVAILING) 225 225 360 360 360 360 360 360 360 360 360 360 360 PREVAILING WIND SPEED(KNOTS) 2.8 4.5 3.2 3.3 5.0 4.8 4.8 4.2 4.8 3.2 3.5 3.0 4.0 PREVAILING WIND PERCENT 32.3 34.8 34.7 33.3 44.4 50.0 56.0 56.9 51.7 35.9 33.3 35.1 39.8 CALMS PERCENT OF WIND 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.0 0.0 0.0 0.4 0.1 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 260 238 323 280 350 6 26 24 8 345 287 322 350 VECTOR WIND MAGNITUDE(KNOTS) 0.6 1.5 0.7 1.3 1.7 2.5 3.2 2.8 2.2 0.9 0.9 0.7 1.1 WIND STEADINESES (MEAN %) 22.2 40.5 20.0 27.7 33.3 49.0 66.7 63.6 50.0 26.5 22.0 21.2 26.8 WIND SPEED (MEAN KNOTS) 2.7 3.7 3.5 4.7 5.1 5.1 4.8 4.4 4.4 3.4 4.1 3.3 4.1 FASTEST WIND DIRECTION 360 240 230 230 230 270 360 90 360 360 310 230 230 FASTEST WIND SPEED (KNOTS) 8 19 18 20 18 18 18 18 18 14 18 16 20 DAY 27 9 17 11 20 10 8 20 13 9 3 20 DAYS WITH SKY CLEAR (0-2)/8 14 10 4 13 9 21 26 29 28 22 11 9 196 DAYS WITH P.CLOUDY (3-6)/8 8 12 14 12 14 9 5 2 2 6 17 15 116 DAYS WITH CLOUDY (7-8)/8 9 6 13 5 8 0 0 0 0 3 2 7 53 DAYS WITH VISIBILITY =< 2 KM 0 0 0 0 0 0 0 0 0 0 0 1 1 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 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 867.4 862.8 861.9 863.8 863.9 862.2 858.8 860.8 864.4 867.7 866.5 864.0 863.7 MAX. QFE PRESSURE IN HPA 874.6 870.2 890.6 869.9 869.6 867.6 875.9 867.0 882.0 872.4 873.8 876.2 890.6 DAY-HOUR 9- 6 8- 6 6-21 1-18 9- 3 2- 3 4-18 21- 3 11- 0 13- 6 12- 6 2- 6 MIN. QFE PRESSURE IN HPA 861.3 850.0 851.3 850.4 852.8 855.6 851.6 853.7 857.2 862.6 859.0 855.4 850.0 DAY-HOUR 25- 0 23-12 4-12 10-12 3- 9 30-15 29-12 6-15 1-12 7-12 23-12 29- 9 MEAN QNH PRESSURE IN HPA 1019.4 1014.2 1013.2 1015.3 1015.4 1013.5 1009.6 1011.9 1016.0 1019.8 1018.4 1015.5 1015.2 MAX. QNH PRESSURE IN HPA 1027.6 1022.6 1045.9 1022.3 1021.9 1019.7 1029.1 1019.0 1036.1 1025.1 1026.7 1029.5 1045.9 DAY-HOUR 9- 6 8- 6 6-21 1-18 9- 3 2- 3 4-18 21- 3 11- 0 13- 6 12- 6 2- 6 MIN. QNH PRESSURE IN HPA 1012.5 999.6 1001.1 1000.0 1002.8 1006.0 1001.4 1003.8 1007.8 1014.0 1009.9 1005.7 999.6 DAY-HOUR 25- 0 23-12 4-12 10-12 3- 9 30-15 29-12 6-15 1-12 7-12 23-12 29- 9 MEAN QFF PRESSURE IN HPA 1022.0 1014.5 1012.0 1010.4 1008.4 1003.7 997.9 1000.6 1007.6 1015.5 1016.6 1016.9 1010.5 MAX. QFF PRESSURE IN HPA 1032.6 1026.2 1043.2 1022.7 1019.5 1012.5 1018.5 1010.9 1027.5 1023.0 1025.9 1029.6 1043.2 DAY-HOUR 9- 6 25- 3 6-21 13- 3 9- 3 2- 3 4-18 21- 3 11- 0 12-15 12- 6 2-15 MIN. QFF PRESSURE IN HPA 1013.8 997.1 996.6 995.9 994.4 994.4 989.0 991.2 997.2 1006.7 1006.0 1006.4 989.0 DAY-HOUR 25-12 23-12 4- 0 10- 9 3- 9 30-15 29-12 6-12 1-12 7-12 23-12 29- 9 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 867.2 862.7 861.6 863.9 863.8 862.4 858.8 861.1 864.9 867.6 866.4 863.5 863.7 MAX. QFE PRESSURE IN HPA 872.4 868.8 869.3 868.2 869.0 867.1 864.5 866.2 882.0 871.2 872.5 872.4 882.0 DAY 10 9 23 2 9 2 10 21 11 13 12 3 MIN. QFE PRESSURE IN HPA 861.3 855.5 851.7 852.4 854.2 857.5 853.4 855.4 859.8 863.0 860.3 855.8 851.7 DAY 25 11 4 10 3 30 29 7 1 7 23 29 MEAN QNH PRESSURE IN HPA 1019.2 1014.1 1012.9 1015.4 1015.3 1013.7 1009.6 1012.2 1016.6 1019.7 1018.3 1014.9 1015.2 MAX. QNH PRESSURE IN HPA 1025.1 1021.0 1021.6 1020.3 1021.3 1019.1 1016.1 1018.1 1036.1 1023.8 1025.2 1025.1 1036.1 DAY 10 9 23 2 9 2 10 21 11 13 12 3 MIN. QNH PRESSURE IN HPA 1012.5 1005.9 1001.5 1002.3 1004.4 1008.1 1003.5 1005.7 1010.8 1014.4 1011.3 1006.2 1001.5 DAY 25 11 4 10 3 30 29 7 1 7 23 29 MEAN QFF PRESSURE IN HPA 1021.4 1014.0 1011.4 1010.4 1008.4 1004.1 997.9 1000.8 1007.9 1015.0 1016.1 1016.0 1010.3 MAX. QFF PRESSURE IN HPA 1029.1 1023.7 1021.1 1020.5 1018.4 1011.0 1006.5 1009.1 1027.5 1021.2 1023.3 1026.1 1029.1 DAY 10 25 23 13 9 2 9 22 11 13 12 3 MIN. QFF PRESSURE IN HPA 1013.9 1003.7 996.6 996.4 996.0 996.7 991.2 992.4 1000.2 1007.7 1008.2 1007.0 991.2 DAY 25 23 4 10 3 30 29 7 1 7 24 29 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 867.4 863.0 862.2 864.2 864.2 863.1 859.6 861.7 865.0 868.0 866.6 864.0 864.1 MAX. QFE PRESSURE IN HPA 873.4 868.9 870.0 869.0 869.6 867.6 865.0 867.0 870.6 871.4 872.6 875.3 875.3 DAY 9 8 22 2 9 2 10 21 22 12 12 2 MIN. QFE PRESSURE IN HPA 861.7 853.9 855.6 852.0 854.0 858.6 853.8 856.5 860.1 863.5 860.5 855.5 852.0 DAY 25 23 13 10 3 29 29 7 1 7 23 29 MEAN QNH PRESSURE IN HPA 1019.5 1014.5 1013.6 1015.8 1015.8 1014.6 1010.5 1012.9 1016.7 1020.1 1018.5 1015.5 1015.7 MAX. QNH PRESSURE IN HPA 1026.3 1021.1 1022.4 1021.3 1021.9 1019.7 1016.7 1019.0 1023.1 1024.0 1025.4 1028.4 1028.4 DAY 9 8 22 2 9 2 10 21 22 12 12 2 MIN. QNH PRESSURE IN HPA 1012.9 1004.0 1006.0 1001.9 1004.2 1009.4 1003.9 1007.0 1011.1 1015.0 1011.6 1005.9 1001.9 DAY 25 23 13 10 3 29 29 7 1 7 23 29 MEAN QFF PRESSURE IN HPA 1022.6 1015.5 1013.1 1011.7 1009.6 1005.7 999.8 1002.5 1009.1 1016.9 1017.6 1017.4 1011.8 MAX. QFF PRESSURE IN HPA 1031.6 1026.2 1023.4 1022.7 1019.5 1012.5 1007.8 1010.9 1015.6 1022.9 1024.9 1028.8 1031.6 DAY 9 25 22 13 9 2 9 21 22 12 12 2 MIN. QFF PRESSURE IN HPA 1015.3 1002.8 1004.9 997.0 997.1 998.5 992.5 994.5 1001.5 1009.6 1009.7 1007.4 992.5 DAY 25 23 13 10 3 30 29 7 1 8 23 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 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 868.5 863.9 862.8 864.9 864.8 863.2 859.8 861.9 865.6 868.9 867.6 865.2 864.8 MAX. QFE PRESSURE IN HPA 874.6 870.2 870.8 869.6 869.5 867.4 865.0 866.8 871.0 872.4 873.8 876.2 876.2 DAY 9 8 22 1 27 2 10 21 22 13 12 2 MIN. QFE PRESSURE IN HPA 862.4 853.1 854.0 852.4 854.4 858.4 853.8 856.5 860.3 864.8 861.4 856.5 852.4 DAY 25 23 4 10 3 30 29 7 1 7 23 29 MEAN QNH PRESSURE IN HPA 1020.7 1015.5 1014.2 1016.6 1016.5 1014.7 1010.8 1013.2 1017.4 1021.2 1019.6 1016.9 1016.4 MAX. QNH PRESSURE IN HPA 1027.6 1022.6 1023.3 1021.9 1021.8 1019.4 1016.7 1018.7 1023.5 1025.1 1026.7 1029.5 1029.5 DAY 9 8 22 1 27 2 10 21 22 13 12 2 MIN. QNH PRESSURE IN HPA 1013.7 1003.1 1004.2 1002.3 1004.6 1009.2 1003.9 1007.0 1011.3 1016.5 1012.6 1007.0 1002.3 DAY 25 23 4 10 3 30 29 7 1 7 23 29 MEAN QFF PRESSURE IN HPA 1023.7 1016.3 1013.4 1011.7 1009.3 1004.7 999.1 1001.9 1008.9 1017.0 1018.1 1018.6 1011.9 MAX. QFF PRESSURE IN HPA 1032.6 1026.1 1023.3 1021.3 1017.8 1010.6 1006.7 1010.0 1015.7 1022.9 1025.9 1029.6 1032.6 DAY 9 25 22 13 9 2 9 22 22 13 12 2 MIN. QFF PRESSURE IN HPA 1016.1 1001.7 1000.5 997.8 997.2 997.4 992.1 994.1 1001.4 1009.5 1009.9 1008.7 992.1 DAY 25 23 4 10 3 30 29 7 1 8 23 29 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 867.3 863.0 862.0 864.0 863.8 862.3 858.7 860.7 864.2 867.6 866.1 863.8 863.6 MAX. QFE PRESSURE IN HPA 873.7 869.6 870.0 869.8 868.5 866.4 863.8 866.0 869.5 871.3 872.8 875.2 875.2 DAY 9 8 22 1 18 2 9 21 21 13 12 2 MIN. QFE PRESSURE IN HPA 861.7 851.4 855.3 851.0 852.8 857.4 853.3 855.5 858.8 863.4 860.0 855.4 851.0 DAY 25 23 4 10 3 30 29 7 1 7 23 29 MEAN QNH PRESSURE IN HPA 1019.3 1014.5 1013.3 1015.5 1015.4 1013.6 1009.5 1011.8 1015.8 1019.7 1018.0 1015.4 1015.1 MAX. QNH PRESSURE IN HPA 1026.6 1021.9 1022.4 1022.2 1020.7 1018.3 1015.3 1017.8 1021.8 1023.9 1025.6 1028.3 1028.3 DAY 9 8 22 1 18 2 9 21 21 13 12 2 MIN. QNH PRESSURE IN HPA 1012.9 1001.2 1005.6 1000.7 1002.8 1008.0 1003.4 1005.9 1009.6 1014.9 1011.0 1005.7 1000.7 DAY 25 23 4 10 3 30 29 7 1 7 23 29 MEAN QFF PRESSURE IN HPA 1021.4 1014.2 1011.5 1010.1 1007.7 1003.1 997.1 999.9 1006.8 1014.7 1015.5 1016.3 1009.9 MAX. QFF PRESSURE IN HPA 1030.6 1024.0 1021.8 1019.6 1016.0 1009.3 1004.9 1008.4 1013.4 1020.7 1023.8 1028.5 1030.6 DAY 9 25 22 12 9 2 9 21 22 13 12 2 MIN. QFF PRESSURE IN HPA 1014.6 998.1 1001.4 995.9 994.4 995.6 990.7 992.0 998.9 1007.6 1007.2 1006.4 990.7 DAY 25 23 4 10 3 30 29 7 1 7 23 29 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 866.5 861.8 860.6 862.7 862.9 861.1 857.5 859.5 863.0 866.8 865.5 863.4 862.6 MAX. QFE PRESSURE IN HPA 873.2 868.8 868.7 867.5 867.5 865.4 863.5 865.0 868.4 870.5 871.8 874.2 874.2 DAY 9 8 22 1 18 2 9 21 22 12 12 2 MIN. QFE PRESSURE IN HPA 861.3 850.0 851.3 850.4 853.0 855.9 851.6 854.0 857.2 862.6 859.0 855.8 850.0 DAY 25 23 4 10 3 30 29 6 1 7 23 29 MEAN QNH PRESSURE IN HPA 1018.4 1013.1 1011.7 1014.1 1014.3 1012.2 1008.1 1010.4 1014.4 1018.7 1017.3 1014.8 1014.0 MAX. QNH PRESSURE IN HPA 1026.0 1021.0 1020.9 1019.5 1019.5 1017.1 1015.0 1016.7 1020.6 1023.0 1024.4 1027.2 1027.2 DAY 9 8 22 1 18 2 9 21 22 12 12 2 MIN. QNH PRESSURE IN HPA 1012.5 999.6 1001.1 1000.0 1003.0 1006.3 1001.4 1004.2 1007.8 1014.0 1009.9 1006.2 999.6 DAY 25 23 4 10 3 30 29 6 1 7 23 29 MEAN QFF PRESSURE IN HPA 1020.5 1012.9 1010.1 1008.9 1007.3 1002.4 996.2 998.9 1005.6 1013.9 1015.0 1015.9 1009.0 MAX. QFF PRESSURE IN HPA 1029.4 1021.8 1020.3 1018.9 1015.1 1008.8 1005.0 1007.7 1012.7 1020.7 1023.0 1027.7 1029.4 DAY 9 8 22 12 9 2 9 21 30 12 12 2 MIN. QFF PRESSURE IN HPA 1013.8 997.1 997.2 997.1 995.4 994.4 989.0 991.2 997.2 1006.7 1006.0 1006.7 989.0 DAY 25 23 4 10 3 30 29 6 1 7 23 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 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 867.2 862.3 861.2 862.9 863.3 861.2 857.6 859.8 863.5 867.4 866.4 864.1 863.1 MAX. QFE PRESSURE IN HPA 873.4 869.4 869.5 867.7 868.1 866.0 863.5 865.2 869.0 871.5 872.6 875.1 875.1 DAY 9 8 22 1 18 1 9 21 22 12 12 2 MIN. QFE PRESSURE IN HPA 861.4 852.0 855.4 853.4 855.0 855.6 851.6 853.7 857.3 863.6 860.5 857.4 851.6 DAY 24 23 3 10 2 30 29 6 1 6 23 29 MEAN QNH PRESSURE IN HPA 1019.2 1013.6 1012.4 1014.3 1014.7 1012.3 1008.3 1010.7 1015.0 1019.4 1018.3 1015.6 1014.5 MAX. QNH PRESSURE IN HPA 1026.3 1021.7 1021.8 1019.8 1020.2 1017.8 1015.0 1016.9 1021.3 1024.1 1025.4 1028.2 1028.2 DAY 9 8 22 1 18 1 9 21 22 12 12 2 MIN. QNH PRESSURE IN HPA 1012.6 1001.9 1005.7 1003.5 1005.3 1006.0 1001.4 1003.8 1007.9 1015.1 1011.6 1008.0 1001.4 DAY 24 23 3 10 2 30 29 6 1 6 23 29 MEAN QFF PRESSURE IN HPA 1022.3 1014.4 1011.8 1010.2 1008.4 1003.2 997.4 1000.2 1007.4 1016.0 1017.4 1017.5 1010.5 MAX. QFF PRESSURE IN HPA 1031.4 1023.7 1022.9 1021.6 1016.7 1009.9 1005.8 1008.9 1015.0 1023.0 1025.7 1029.6 1031.4 DAY 9 8 22 12 8 1 9 21 30 12 12 2 MIN. QFF PRESSURE IN HPA 1015.5 1001.2 1003.4 1000.5 997.8 994.4 989.7 991.8 998.3 1009.3 1008.9 1009.7 989.7 DAY 24 23 3 9 2 30 29 6 1 7 23 29 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 867.5 862.8 862.0 863.9 864.3 862.3 859.4 860.9 864.5 867.9 866.7 864.2 863.9 MAX. QFE PRESSURE IN HPA 873.5 869.5 870.5 869.9 869.4 867.2 875.9 866.0 870.0 871.7 872.0 874.6 875.9 DAY 9 8 22 1 18 1 4 21 21 12 11 2 MIN. QFE PRESSURE IN HPA 861.8 854.4 853.9 854.9 855.8 857.6 854.0 854.9 858.7 864.0 860.9 858.0 853.9 DAY 24 23 3 10 2 30 28 6 1 6 22 28 MEAN QNH PRESSURE IN HPA 1019.6 1014.2 1013.3 1015.5 1015.9 1013.6 1010.3 1012.0 1016.1 1020.0 1018.7 1015.8 1015.4 MAX. QNH PRESSURE IN HPA 1026.4 1021.8 1023.0 1022.3 1021.7 1019.2 1029.1 1017.8 1022.4 1024.3 1024.7 1027.6 1029.1 DAY 9 8 22 1 18 1 4 21 21 12 11 2 MIN. QNH PRESSURE IN HPA 1013.0 1004.6 1004.0 1005.2 1006.2 1008.3 1004.2 1005.2 1009.5 1015.6 1012.0 1008.7 1004.0 DAY 24 23 3 10 2 30 28 6 1 6 22 28 MEAN QFF PRESSURE IN HPA 1022.6 1015.0 1012.4 1010.6 1008.7 1003.6 998.7 1000.8 1007.7 1015.9 1017.1 1017.5 1010.9 MAX. QFF PRESSURE IN HPA 1031.4 1023.5 1023.0 1021.3 1017.1 1010.2 1018.5 1009.2 1015.3 1022.4 1024.5 1029.0 1031.4 DAY 9 8 22 12 8 1 4 21 30 12 12 2 MIN. QFF PRESSURE IN HPA 1015.3 1004.4 1001.0 999.9 998.5 996.7 992.3 992.1 999.3 1008.3 1009.6 1010.4 992.1 DAY 24 23 3 9 2 30 28 6 1 7 22 18 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 867.4 862.7 862.9 863.8 864.1 862.2 858.8 860.9 864.5 867.7 866.6 863.8 863.8 MAX. QFE PRESSURE IN HPA 872.9 869.1 890.6 869.0 869.1 866.8 864.4 866.2 869.7 871.5 872.3 873.5 890.6 DAY 9 8 6 1 18 1 9 21 21 12 11 1 MIN. QFE PRESSURE IN HPA 861.5 855.6 852.4 853.7 854.9 857.2 853.7 855.0 859.2 863.6 860.5 856.4 852.4 DAY 24 23 3 9 2 29 28 6 1 6 22 28 MEAN QNH PRESSURE IN HPA 1019.5 1014.0 1014.3 1015.4 1015.7 1013.5 1009.6 1012.0 1016.2 1019.8 1018.5 1015.3 1015.3 MAX. QNH PRESSURE IN HPA 1025.7 1021.4 1045.9 1021.3 1021.4 1018.7 1016.0 1018.1 1022.1 1024.1 1025.0 1026.4 1045.9 DAY 9 8 6 1 18 1 9 21 21 12 11 1 MIN. QNH PRESSURE IN HPA 1012.7 1006.0 1002.3 1003.8 1005.2 1007.8 1003.8 1005.3 1010.1 1015.1 1011.6 1006.9 1002.3 DAY 24 23 3 9 2 29 28 6 1 6 22 28 MEAN QFF PRESSURE IN HPA 1021.6 1013.7 1012.6 1010.0 1008.1 1003.1 997.3 1000.2 1007.3 1014.9 1016.1 1016.4 1010.1 MAX. QFF PRESSURE IN HPA 1029.6 1022.2 1043.2 1021.0 1017.8 1009.8 1005.3 1009.1 1014.8 1021.3 1022.6 1027.2 1043.2 DAY 9 8 6 12 8 1 8 21 30 12 16 2 MIN. QFF PRESSURE IN HPA 1014.4 1004.3 997.5 997.2 996.7 995.8 991.4 991.5 999.4 1007.3 1007.9 1007.8 991.4 DAY 24 23 3 9 2 29 28 6 1 7 23 28 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHROUD (40739) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 25 N LONGITUDE 54 57 E DATA PROCESSING CENTER ELEVATION 1345.3 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.1 3.5 5.7 13.8 18.4 22.3 26.0 23.5 19.0 13.2 7.3 1.5 12.9 MINIMUN AIR TEMPERATURE (C) -2.8 0.2 2.1 8.9 12.0 16.6 20.9 18.5 14.1 7.1 2.2 -2.1 8.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 3 18 2 0 0 0 0 23 DAYS WITH MINIMUM TEMP. <=-4 11 4 0 1 0 0 0 0 0 0 0 12 28 DAYS WITH FREEZING MIN.<= 0 28 15 10 3 0 0 0 0 0 0 6 24 86 TEMPERATURE RECORDS LOWEST(C) -8.0 -6.0 -3.0 -4.0 6.0 11.0 18.0 16.0 7.0 2.0 -1.0 -5.0 -8.0 DAY 20 27 1 2 2 5 1 22 27 31 14 14 MAXIMUM AIR TEMPERATURE (C) 4.6 8.3 10.8 19.7 25.8 29.2 32.4 29.5 26.5 26.7 18.0 10.3 20.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 16 27 16 2 4 0 0 67 DAYS WITH MAXIMUM TEMP. <= 0 4 0 0 0 0 0 0 0 0 0 0 0 4 TEMPERATURE RECORDS HIGHEST(C) 10.0 14.0 18.0 27.0 31.0 35.0 36.0 33.0 31.0 31.0 23.0 21.0 36.0 DAY 31 10 9 12 20 29 10 4 25 16 11 1 DIF. BETWEEN (MAX.-MIN.) (C) 7.4 8.1 8.7 10.8 13.8 12.6 11.5 11.0 12.4 19.6 15.8 12.4 12.1 MEAN DAILY TEMP. (MDT) (C) 0.9 4.2 6.5 14.3 18.9 22.9 26.7 24.0 20.3 16.9 10.1 4.1 14.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 7.0 72.0 176.0 93.5 9.0 0.0 0.0 0.0 357.5 HEATING DEG. DAYS(BASE 18 0C) 530.5 399.0 358.0 116.5 22.0 0.0 0.0 0.0 11.5 45.5 237.5 431.0 2151.5 DEWPOINT (MEAN C) -4.2 -2.2 0.5 4.6 5.4 8.2 12.7 9.6 8.9 3.9 -1.6 -4.0 3.5 MIXING RATIO (G/KG) 3.29 3.87 4.71 6.38 6.70 8.07 10.92 8.85 8.50 5.93 3.97 3.33 6.21 VAPOUR PRESSURE (HPA) 4.55 5.34 6.46 8.75 9.18 11.03 14.83 12.11 11.64 8.19 5.50 4.61 8.52 SATURATION DEF. (HPA) 1.75 2.76 3.12 7.92 13.09 17.13 19.77 17.48 11.16 8.03 5.28 2.46 9.16 RELATIVE HUMIDITY (MEAN %) 75 68 71 56 44 42 45 43 53 56 56 70 57 RELATIVE HUMIDITY (MAX. %) 87 83 84 72 59 56 58 55 67 71 71 86 71 RELATIVE HUMIDITY (MIN. %) 60 52 56 41 31 31 34 31 39 33 31 45 40 RELATIVE HUMIDITY (MEAN% 03UTC) 82 76 79 67 55 55 56 52 62 66 67 81 67 RELATIVE HUMIDITY (MEAN% 09UTC) 63 58 61 46 35 33 35 34 41 33 31 46 43 RELATIVE HUMIDITY (MEAN% 15UTC) 76 67 67 51 39 38 41 39 51 57 55 68 54 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 23.0 26.1 39.6 36.6 0.0 0.0 0.0 0.0 0.4 0.0 0.0 0.0 125.7 DAYS WITH PRECIPITATION >=10 2 1 1 1 0 0 0 0 0 0 0 0 5 DAYS WITH PRECIPITATION >= 5 2 2 2 2 0 0 0 0 0 0 0 0 8 DAYS WITH PRECIPITATION >= 1 2 6 9 8 0 0 0 0 0 0 0 0 25 DAYS WITH PRECIPITATION 5 12 16 10 0 0 3 1 5 0 0 0 52 GREATEST DAILY PRECIPITATION 13.0 13.0 18.2 14.0 0.0 0.0 0.0 0.0 0.2 0.0 0.0 0.0 18.2 DAY 15 29 13 20 **