STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** 31.0 34.2 34.0 34.1 30.1 22.3 16.9 9.7 ***** MINIMUN AIR TEMPERATURE (C) ***** ***** ***** ***** 21.2 24.2 23.9 24.2 18.6 10.2 5.3 0.4 ***** DAYS WITH MINIMUM TEMP. >=21 **** **** **** **** 19 26 29 31 8 0 0 0 **** DAYS WITH MINIMUM TEMP. <=-4 **** **** **** **** 0 0 0 0 0 0 0 4 **** DAYS WITH FREEZING MIN.<= 0 **** **** **** **** 0 0 0 0 0 0 3 11 **** TEMPERATURE RECORDS LOWEST(C) ***** ***** ***** ***** 17.0 19.0 18.5 21.0 12.6 4.0 -1.0 -11.0 ***** DAY ** ** ** ** 1 2 14 15 27 17 15 30 MAXIMUM AIR TEMPERATURE (C) ***** ***** ***** ***** 36.0 38.6 38.5 38.8 35.1 27.4 22.6 15.1 ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** **** **** 31 30 31 31 30 6 0 0 **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** **** **** 0 0 0 0 0 0 0 0 **** TEMPERATURE RECORDS HIGHEST(C)***** ***** ***** ***** 39.5 43.0 42.6 42.0 39.6 34.0 28.0 23.0 ***** DAY ** ** ** ** 25 28 4 9 2 2 11 6 DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** ***** ***** 14.8 14.4 14.6 14.6 16.5 17.2 17.3 14.7 ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** ***** ***** 28.6 31.4 31.2 31.5 26.9 18.8 13.9 7.8 ***** COOLING DEG. DAYS(BASE 21 0C)****** ****** ****** ****** 235.4 311.9 317.2 325.4 176.5 12.1 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C)****** ****** ****** ****** 0.0 0.0 0.0 0.0 0.0 27.9 125.5 305.4 ****** 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. ****** ****** ****** ****** 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.3 ****** DAYS WITH PRECIPITATION >=10 **** **** **** **** 0 0 0 0 0 0 0 0 **** DAYS WITH PRECIPITATION >= 5 **** **** **** **** 0 0 0 0 0 0 0 0 **** DAYS WITH PRECIPITATION >= 1 **** **** **** **** 0 0 0 0 0 0 0 2 **** DAYS WITH PRECIPITATION **** **** **** **** 1 0 0 0 0 0 0 3 **** GREATEST DAILY PRECIPITATION ****** ****** ****** ****** 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 22 DAY WITH THUNDER STORM **** **** **** **** 0 0 0 0 0 0 0 0 **** DAYS WITH SNOW OR SLEET **** **** **** **** 0 0 0 0 0 0 0 1 **** DAYS WITH DUST **** **** **** **** 7 14 10 8 7 3 0 1 **** WIND DIRECTION (PREVAILING) *** *** *** *** 360 90 90 45 45 360 270 360 *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** 14.2 20.9 21.2 19.8 18.2 14.5 11.1 11.0 **** PREVAILING WIND PERCENT ***** ***** ***** ***** 24.5 25.3 26.5 62.6 50.0 24.5 13.3 19.4 ***** CALMS PERCENT OF WIND ***** ***** ***** ***** 12.9 10.0 4.5 14.8 17.3 33.5 25.3 24.5 ***** NO. OF WIND OBSERVATION **** **** **** **** 155 150 155 155 150 155 150 155 1225 VECTOR WIND DIRECTION (MEAN) *** *** *** *** 357 47 102 39 25 350 295 11 *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** 3.2 8.8 9.2 13.5 11.0 4.5 0.8 2.3 **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** 26.4 60.3 49.5 87.1 82.1 54.2 11.4 28.0 ***** WIND SPEED (MEAN KNOTS) **** **** **** **** 12.1 14.6 18.6 15.5 13.4 8.3 7.0 8.2 **** FASTEST WIND DIRECTION *** *** *** *** 130 70 120 60 60 340 290 210 *** FASTEST WIND SPEED (KNOTS) *** *** *** *** 33 39 39 35 33 29 19 27 *** DAY ** ** ** ** 6 22 17 25 9 8 1 25 DAYS WITH SKY CLEAR (0-2)/8 **** **** **** **** 26 27 30 31 30 27 23 16 **** DAYS WITH P.CLOUDY (3-6)/8 **** **** **** **** 4 3 1 0 0 4 7 13 **** DAYS WITH CLOUDY (7-8)/8 **** **** **** **** 1 0 0 0 0 0 0 2 **** DAYS WITH VISIBILITY =< 2 KM **** **** **** **** 0 0 0 0 0 2 0 1 **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** 338.8 339.5 340.0 351.9 316.4 282.0 256.7 213.2 ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1990 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 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1990 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 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1990 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 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.1 8.9 14.0 22.1 27.0 32.9 34.4 32.7 28.6 21.2 15.6 10.4 21.3 MINIMUN AIR TEMPERATURE (C) 0.3 2.2 8.0 13.5 17.1 22.5 24.4 22.6 18.5 11.7 6.0 4.8 12.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 3 21 30 25 10 0 0 0 89 DAYS WITH MINIMUM TEMP. <=-4 6 3 0 0 0 0 0 0 0 0 0 0 9 DAYS WITH FREEZING MIN.<= 0 17 8 0 0 0 0 0 0 0 0 1 9 35 TEMPERATURE RECORDS LOWEST(C) -5.0 -6.0 1.0 7.8 11.0 17.0 19.8 15.6 9.0 7.0 -2.0 -2.0 -6.0 DAY 7 16 4 14 8 24 23 11 28 15 29 19 MAXIMUM AIR TEMPERATURE (C) 12.6 12.9 18.6 26.1 31.2 36.8 38.4 37.4 33.3 26.1 20.6 14.5 25.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 7 20 30 30 31 22 0 0 0 140 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.0 21.0 25.5 35.0 39.4 42.6 44.0 41.8 41.0 28.0 28.2 22.0 44.0 DAY 25 28 25 25 30 7 9 7 9 12 2 10 DIF. BETWEEN (MAX.-MIN.) (C) 12.3 10.7 10.6 12.6 14.1 14.3 14.0 14.8 14.8 14.4 14.6 9.7 13.1 MEAN DAILY TEMP. (MDT) (C) 6.5 7.5 13.3 19.8 24.1 29.6 31.4 30.0 25.9 18.9 13.3 9.6 19.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 30.4 103.5 259.3 313.9 270.5 165.7 1.5 0.0 0.0 1144.9 HEATING DEG. DAYS(BASE 18 0C) 357.7 292.6 147.9 25.1 0.0 0.0 0.0 0.0 7.3 6.4 148.0 259.9 1244.8 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. 22.1 39.2 67.7 7.4 10.4 0.0 0.0 0.0 0.0 0.0 0.0 47.3 194.1 DAYS WITH PRECIPITATION >=10 0 2 3 0 0 0 0 0 0 0 0 1 6 DAYS WITH PRECIPITATION >= 5 2 4 5 1 1 0 0 0 0 0 0 1 14 DAYS WITH PRECIPITATION >= 1 8 5 8 1 2 0 0 0 0 0 0 4 28 DAYS WITH PRECIPITATION 11 6 12 3 5 0 0 0 0 1 1 8 47 GREATEST DAILY PRECIPITATION 6.4 16.0 18.0 7.0 9.0 0.0 0.0 0.0 0.0 0.0 0.0 39.0 39.0 DAY 22 8 1 1 4 ** ** ** ** ** ** 16 DAY WITH THUNDER STORM 1 0 2 0 1 0 0 0 0 0 0 0 4 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 1 3 4 6 8 2 5 2 4 0 0 5 40 WIND DIRECTION (PREVAILING) 45 360 360 360 270 360 45 45 45 360 360 90 45 PREVAILING WIND SPEED(KNOTS) 10.5 15.4 15.6 13.4 13.6 13.4 18.0 17.0 17.4 12.4 14.9 10.6 15.7 PREVAILING WIND PERCENT 13.5 26.4 18.1 24.0 18.1 28.0 57.4 64.5 50.0 26.5 18.0 12.9 23.1 CALMS PERCENT OF WIND 36.1 18.6 21.9 15.3 16.1 7.3 8.4 6.5 10.7 29.7 36.0 27.7 19.6 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 337 334 292 340 322 16 34 43 30 1 318 174 14 VECTOR WIND MAGNITUDE(KNOTS) 1.7 2.3 1.1 4.9 4.3 5.6 11.8 11.5 9.8 4.7 2.5 1.2 4.2 WIND STEADINESES (MEAN %) 24.3 20.7 11.3 45.4 39.1 42.7 78.1 79.3 70.5 56.6 35.2 13.8 38.5 WIND SPEED (MEAN KNOTS) 7.0 11.1 9.7 10.8 11.0 13.1 15.1 14.5 13.9 8.3 7.1 8.7 10.9 FASTEST WIND DIRECTION 270 80 170 360 40 360 40 40 60 340 340 340 170 FASTEST WIND SPEED (KNOTS) 41 29 43 29 31 27 33 27 37 19 29 23 43 DAY 25 1 25 7 4 8 22 20 11 8 7 18 DAYS WITH SKY CLEAR (0-2)/8 12 10 5 10 16 28 31 31 30 26 23 10 232 DAYS WITH P.CLOUDY (3-6)/8 15 13 14 19 13 2 0 0 0 3 5 9 93 DAYS WITH CLOUDY (7-8)/8 4 5 12 1 2 0 0 0 0 2 2 12 40 DAYS WITH VISIBILITY =< 2 KM 0 1 1 1 2 0 0 0 1 0 0 0 6 DURATION OF SUNSHINE HOURS 206.9 201.6 180.7 273.7 303.7 355.1 372.5 360.2 314.6 279.6 244.9 134.9 3228.4 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1991 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 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1991 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 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1991 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 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.1 9.8 11.6 19.7 24.7 33.4 33.8 31.1 27.2 22.2 17.1 10.7 20.6 MINIMUN AIR TEMPERATURE (C) 0.3 1.5 3.5 11.9 15.4 23.5 24.2 21.6 16.2 11.0 6.7 3.5 11.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 1 1 27 29 21 0 0 0 0 79 DAYS WITH MINIMUM TEMP. <=-4 8 3 2 0 0 0 0 0 0 0 0 0 13 DAYS WITH FREEZING MIN.<= 0 15 13 5 0 0 0 0 0 0 0 1 3 37 TEMPERATURE RECORDS LOWEST(C) -5.6 -6.4 -5.8 5.0 9.6 18.6 20.0 17.0 13.0 5.0 0.0 -2.5 -6.4 DAY 29 17 13 6 4 2 30 19 13 20 28 11 MAXIMUM AIR TEMPERATURE (C) 10.4 15.0 15.9 24.0 28.7 37.2 38.2 35.6 31.9 27.4 22.7 15.4 25.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 4 16 30 31 29 24 8 0 0 142 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 16.5 25.0 23.6 31.2 34.5 41.0 42.0 40.0 36.6 30.5 27.0 21.0 42.0 DAY 2 25 30 14 23 26 6 6 26 6 12 4 DIF. BETWEEN (MAX.-MIN.) (C) 10.1 13.5 12.4 12.1 13.3 13.7 14.0 14.0 15.7 16.4 16.0 11.9 13.6 MEAN DAILY TEMP. (MDT) (C) 5.3 8.3 9.7 17.9 22.1 30.4 31.2 28.6 24.1 19.2 14.7 9.5 18.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 17.5 60.5 280.8 316.7 227.8 88.4 6.3 0.0 0.0 998.1 HEATING DEG. DAYS(BASE 18 0C) 393.5 271.0 256.5 60.5 4.0 0.0 0.0 0.0 0.0 11.5 97.0 264.8 1358.9 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. 23.7 0.8 20.6 17.7 3.3 0.9 0.0 0.0 0.0 0.0 0.0 28.5 95.5 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 0 1 1 DAYS WITH PRECIPITATION >= 5 1 0 2 2 0 0 0 0 0 0 0 3 8 DAYS WITH PRECIPITATION >= 1 9 0 5 4 1 0 0 0 0 0 0 6 25 DAYS WITH PRECIPITATION 13 6 7 8 5 1 0 0 0 0 0 9 49 GREATEST DAILY PRECIPITATION 5.0 0.2 8.0 7.0 2.0 0.9 0.0 0.0 0.0 0.0 0.0 10.0 10.0 DAY 6 3 22 1 11 9 ** ** ** ** ** 22 DAY WITH THUNDER STORM 0 0 1 1 1 1 0 0 0 0 0 0 4 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 5 8 2 5 9 6 4 2 0 0 2 1 44 WIND DIRECTION (PREVAILING) 360 180 360 225 360 45 45 45 45 360 225 180 45 PREVAILING WIND SPEED(KNOTS) 14.9 13.8 15.8 13.5 14.6 15.9 19.6 16.7 16.8 12.5 12.2 13.1 16.3 PREVAILING WIND PERCENT 25.8 15.2 25.2 16.0 31.6 20.7 71.6 66.5 38.0 22.6 16.7 18.7 21.4 CALMS PERCENT OF WIND 11.6 22.1 11.0 18.0 12.9 16.7 4.5 9.0 12.7 23.9 21.3 29.0 16.0 NO. OF WIND OBSERVATION 155 145 155 150 155 150 155 155 150 155 150 155 1830 VECTOR WIND DIRECTION (MEAN) 160 244 300 266 339 355 45 38 15 335 249 176 12 VECTOR WIND MAGNITUDE(KNOTS) 0.7 3.2 2.7 2.9 6.6 4.3 15.6 12.8 8.3 3.4 0.6 2.2 3.4 WIND STEADINESES (MEAN %) 6.2 32.7 22.0 26.9 52.8 35.8 89.1 88.9 65.4 40.0 6.3 25.9 29.1 WIND SPEED (MEAN KNOTS) 11.3 9.8 12.3 10.8 12.5 12.0 17.5 14.4 12.7 8.5 9.6 8.5 11.7 FASTEST WIND DIRECTION 190 180 360 220 360 360 60 50 40 360 180 350 220 FASTEST WIND SPEED (KNOTS) 29 29 29 39 39 35 33 33 31 29 25 29 39 DAY 3 25 10 26 11 10 29 29 10 16 25 4 DAYS WITH SKY CLEAR (0-2)/8 8 19 15 12 17 24 31 27 30 29 21 16 249 DAYS WITH P.CLOUDY (3-6)/8 14 6 9 11 10 6 0 3 0 2 8 8 77 DAYS WITH CLOUDY (7-8)/8 9 4 7 7 4 0 0 1 0 0 1 7 40 DAYS WITH VISIBILITY =< 2 KM 1 1 1 0 0 1 0 0 0 0 0 0 4 DURATION OF SUNSHINE HOURS 162.1 212.4 221.5 197.3 277.2 313.1 378.4 335.5 313.2 304.3 235.5 176.2 3126.7 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1992 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 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1992 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 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1992 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 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.1 11.1 13.4 22.2 28.1 33.2 33.1 31.9 29.6 20.5 15.3 10.8 21.3 MINIMUN AIR TEMPERATURE (C) -1.0 4.1 5.7 12.6 18.0 22.5 24.4 22.5 19.7 9.6 6.0 0.1 12.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 9 23 30 26 11 0 0 0 99 DAYS WITH MINIMUM TEMP. <=-4 6 1 0 0 0 0 0 0 0 0 0 2 9 DAYS WITH FREEZING MIN.<= 0 21 6 1 0 0 0 0 0 0 0 4 14 46 TEMPERATURE RECORDS LOWEST(C) -6.4 -4.0 -2.0 7.4 11.0 18.0 20.0 19.0 13.5 2.5 -1.4 -5.0 -6.4 DAY 17 18 24 13 8 1 24 28 25 9 18 7 MAXIMUM AIR TEMPERATURE (C) 9.9 15.0 17.5 26.5 32.1 37.1 36.9 35.9 33.9 25.5 20.3 16.3 25.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 4 21 30 31 31 29 4 0 0 150 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 17.6 20.0 24.5 32.6 38.0 43.0 40.2 38.2 37.0 35.4 28.0 18.6 43.0 DAY 29 2 8 20 27 21 4 23 4 1 3 19 DIF. BETWEEN (MAX.-MIN.) (C) 10.9 10.9 11.8 13.9 14.1 14.6 12.5 13.4 14.2 15.9 14.3 16.2 13.6 MEAN DAILY TEMP. (MDT) (C) 4.5 9.6 11.6 19.5 25.1 29.8 30.6 29.2 26.8 17.5 13.2 8.2 18.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 17.1 134.3 264.0 298.7 253.1 173.8 17.7 0.0 0.0 1158.8 HEATING DEG. DAYS(BASE 18 0C) 419.3 236.0 198.7 16.8 0.0 0.0 0.0 0.0 0.0 53.0 155.2 303.1 1382.1 DEWPOINT (MEAN C) ***** -1.2 -1.3 1.8 3.0 1.9 3.1 0.2 -1.8 -8.1 -3.8 -7.4 ***** MIXING RATIO (G/KG) ****** 4.35 4.39 5.19 5.56 5.11 5.55 4.50 4.27 2.75 3.56 2.62 ****** VAPOUR PRESSURE (HPA) ****** 6.18 6.22 7.33 7.84 7.19 7.79 6.35 6.04 3.92 5.07 3.75 ****** SATURATION DEF. (HPA) ****** 7.62 9.93 20.56 31.74 45.47 43.84 42.08 36.64 21.77 13.60 9.95 ****** RELATIVE HUMIDITY (MEAN %) *** 48 42 30 22 15 16 14 16 16 31 31 *** RELATIVE HUMIDITY (MAX. %) *** 75 66 52 39 25 26 24 27 27 50 50 *** RELATIVE HUMIDITY (MIN. %) *** 32 25 19 15 11 11 10 10 9 19 19 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** 74 62 51 38 25 26 24 27 27 50 48 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** 38 33 21 17 12 12 11 12 12 21 21 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** 43 40 26 20 12 14 12 15 15 31 30 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 30.8 32.3 19.7 21.9 2.3 0.2 0.0 0.0 0.0 0.0 15.0 0.0 122.2 DAYS WITH PRECIPITATION >=10 1 1 0 1 0 0 0 0 0 0 0 0 3 DAYS WITH PRECIPITATION >= 5 3 2 2 2 0 0 0 0 0 0 2 0 11 DAYS WITH PRECIPITATION >= 1 4 3 6 3 2 0 0 0 0 0 4 0 22 DAYS WITH PRECIPITATION 10 8 11 10 4 1 0 0 0 0 5 0 49 GREATEST DAILY PRECIPITATION 12.0 21.0 5.0 14.0 1.1 0.2 0.0 0.0 0.0 0.0 8.0 0.0 21.0 DAY 14 5 10 14 7 4 ** ** ** ** 5 ** DAY WITH THUNDER STORM 0 0 0 3 1 0 0 0 0 0 0 0 4 DAYS WITH SNOW OR SLEET 2 0 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH DUST 1 3 2 0 0 1 1 1 1 0 3 0 13 WIND DIRECTION (PREVAILING) 360 360 360 360 360 45 45 45 45 360 360 360 45 PREVAILING WIND SPEED(KNOTS) 12.0 13.9 14.0 12.4 15.0 17.8 20.8 20.7 20.9 15.5 14.5 12.3 18.8 PREVAILING WIND PERCENT 25.8 21.4 25.2 20.0 27.7 35.3 67.7 70.3 52.0 31.0 28.0 14.2 23.9 CALMS PERCENT OF WIND 25.2 23.6 19.4 14.0 14.2 10.0 5.2 5.2 6.7 14.8 34.0 47.7 18.3 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 334 206 325 275 337 12 38 34 36 348 330 322 16 VECTOR WIND MAGNITUDE(KNOTS) 0.9 1.5 2.1 2.8 6.6 7.8 17.0 16.9 12.3 6.7 2.1 1.1 5.3 WIND STEADINESES (MEAN %) 10.6 14.7 19.8 25.9 54.5 56.5 91.4 90.9 74.1 58.8 24.7 25.6 44.2 WIND SPEED (MEAN KNOTS) 8.5 10.2 10.6 10.8 12.1 13.8 18.6 18.6 16.6 11.4 8.5 4.3 12.0 FASTEST WIND DIRECTION 240 150 360 210 280 40 40 10 40 360 360 340 40 FASTEST WIND SPEED (KNOTS) 23 33 29 39 39 35 43 39 39 29 43 23 43 DAY 9 3 22 26 7 23 17 9 6 6 14 6 DAYS WITH SKY CLEAR (0-2)/8 13 12 11 9 19 30 31 30 30 27 14 19 245 DAYS WITH P.CLOUDY (3-6)/8 10 9 14 16 11 0 0 1 0 4 15 8 88 DAYS WITH CLOUDY (7-8)/8 8 7 6 5 1 0 0 0 0 0 1 4 32 DAYS WITH VISIBILITY =< 2 KM 2 0 0 0 1 0 0 0 0 0 1 0 4 DURATION OF SUNSHINE HOURS 173.9 177.0 209.7 233.8 305.8 350.4 372.8 358.6 322.8 305.0 228.3 236.2 3274.3 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** 891.1 889.8 887.7 886.7 883.2 882.3 884.7 886.7 893.8 892.4 894.0 ****** MAX. QFE PRESSURE IN HPA ****** 898.3 896.1 895.7 892.7 890.7 887.8 888.5 891.4 899.8 898.1 900.3 ****** DAY-HOUR **-** 8- 6 31- 6 1- 6 10- 6 23- 6 28- 6 25- 6 23- 6 17- 6 24- 6 26- 6 MIN. QFE PRESSURE IN HPA ****** 882.6 879.8 880.1 877.8 878.4 877.1 879.6 881.2 885.3 883.2 887.0 ****** DAY-HOUR **-** 23-15 22-12 12-15 29-15 3-15 14-15 12-15 3-12 3-12 14-12 4-12 MEAN QNH PRESSURE IN HPA ****** 1018.6 1017.1 1014.8 1013.7 1009.8 1008.8 1011.5 1013.7 1021.7 1020.1 1021.9 ****** MAX. QNH PRESSURE IN HPA ****** 1026.7 1024.2 1023.8 1020.4 1018.2 1015.0 1015.7 1019.0 1028.3 1026.4 1028.9 ****** DAY-HOUR **-** 8- 6 31- 6 1- 6 10- 6 23- 6 28- 6 25- 6 23- 6 17- 6 24- 6 26- 6 MIN. QNH PRESSURE IN HPA ****** 1009.2 1006.0 1006.4 1003.8 1004.5 1003.0 1005.8 1007.6 1012.2 1009.8 1014.1 ****** DAY-HOUR **-** 23-15 22-12 12-15 29-15 3-15 14-15 12-15 3-12 3-12 14-12 4-12 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 ****** 891.4 890.1 888.3 887.2 884.1 883.3 885.4 887.3 894.5 893.0 894.3 ****** MAX. QFE PRESSURE IN HPA ****** 897.7 895.8 895.4 892.3 890.1 887.4 888.0 891.1 899.1 896.9 899.4 ****** DAY ** 8 18 1 10 23 28 7 24 17 21 27 MIN. QFE PRESSURE IN HPA ****** 885.2 880.6 882.6 882.6 880.8 879.8 881.6 884.3 887.0 885.3 887.9 ****** DAY ** 15 22 12 29 13 14 12 4 3 14 5 MEAN QNH PRESSURE IN HPA ****** 1019.0 1017.5 1015.5 1014.3 1010.8 1009.9 1012.2 1014.4 1022.4 1020.7 1022.2 ****** MAX. QNH PRESSURE IN HPA ****** 1026.0 1023.9 1023.4 1020.0 1017.5 1014.5 1015.2 1018.6 1027.5 1025.1 1027.9 ****** DAY ** 8 18 1 10 23 28 7 24 17 21 27 MIN. QNH PRESSURE IN HPA ****** 1012.1 1006.9 1009.2 1009.2 1007.1 1006.0 1008.0 1011.0 1014.1 1012.2 1015.1 ****** DAY ** 15 22 12 29 13 14 12 4 3 14 5 MEAN QFF PRESSURE IN HPA ****** 1018.7 1016.0 1010.2 1006.2 1000.6 999.4 1002.5 1006.0 1018.7 1019.2 1023.2 ****** MAX. QFF PRESSURE IN HPA ****** 1028.0 1023.7 1020.7 1014.9 1008.3 1004.4 1006.7 1011.5 1026.4 1026.3 1031.3 ****** DAY ** 8 14 1 10 23 28 26 24 9 23 7 MIN. QFF PRESSURE IN HPA ****** 1009.2 1004.5 1002.3 998.3 995.7 994.5 997.8 1001.4 1006.7 1008.2 1015.0 ****** DAY ** 15 22 12 29 21 14 12 1 3 14 5 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA ****** 892.3 891.0 888.9 887.8 884.4 883.4 885.9 887.9 895.3 893.7 895.4 ****** MAX. QFE PRESSURE IN HPA ****** 898.3 896.1 895.7 892.7 890.7 887.8 888.5 891.4 899.8 898.1 900.3 ****** DAY ** 8 31 1 10 23 28 25 23 17 24 26 MIN. QFE PRESSURE IN HPA ****** 886.1 882.5 882.5 882.4 880.8 879.5 882.2 884.6 888.0 885.5 889.0 ****** DAY ** 15 22 13 29 13 14 12 3 3 14 5 MEAN QNH PRESSURE IN HPA ****** 1019.9 1018.5 1016.2 1014.9 1011.2 1010.1 1012.8 1015.0 1023.3 1021.5 1023.4 ****** MAX. QNH PRESSURE IN HPA ****** 1026.7 1024.2 1023.8 1020.4 1018.2 1015.0 1015.7 1019.0 1028.3 1026.4 1028.9 ****** DAY ** 8 31 1 10 23 28 25 23 17 24 26 MIN. QNH PRESSURE IN HPA ****** 1013.1 1009.0 1009.0 1008.9 1007.1 1005.7 1008.7 1011.4 1015.2 1012.4 1016.3 ****** DAY ** 15 22 13 29 13 14 12 3 3 14 5 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 ****** 891.4 890.0 887.9 886.9 883.5 882.5 884.9 886.9 893.8 892.1 893.9 ****** MAX. QFE PRESSURE IN HPA ****** 897.5 895.2 893.9 892.5 890.3 887.0 887.5 890.5 898.3 896.9 899.2 ****** DAY ** 8 17 1 10 23 28 18 23 16 30 26 MIN. QFE PRESSURE IN HPA ****** 885.4 881.1 881.8 880.4 879.8 878.7 881.5 883.2 886.6 884.0 887.6 ****** DAY ** 15 22 12 29 13 14 12 3 3 14 5 MEAN QNH PRESSURE IN HPA ****** 1018.9 1017.4 1015.1 1014.0 1010.1 1009.1 1011.7 1014.0 1021.6 1019.8 1021.7 ****** MAX. QNH PRESSURE IN HPA ****** 1025.8 1023.2 1021.8 1020.2 1017.7 1014.1 1014.6 1018.0 1026.7 1025.1 1027.7 ****** DAY ** 8 17 1 10 23 28 18 23 16 30 26 MIN. QNH PRESSURE IN HPA ****** 1012.3 1007.5 1008.3 1006.7 1006.0 1004.8 1007.9 1009.8 1013.6 1010.7 1014.7 ****** DAY ** 15 22 12 29 13 14 12 3 3 14 5 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 ****** 890.1 888.7 886.6 885.7 882.1 881.2 883.7 885.6 892.6 891.3 893.0 ****** MAX. QFE PRESSURE IN HPA ****** 896.1 894.0 892.5 890.8 888.6 885.3 886.3 889.8 897.5 896.3 897.6 ****** DAY ** 8 17 16 10 23 27 18 23 16 30 26 MIN. QFE PRESSURE IN HPA ****** 883.4 879.8 880.6 878.4 878.9 877.6 880.1 881.2 885.3 883.2 887.0 ****** DAY ** 23 22 12 29 13 14 12 3 3 14 4 MEAN QNH PRESSURE IN HPA ****** 1017.5 1016.0 1013.6 1012.7 1008.6 1007.6 1010.4 1012.5 1020.3 1018.9 1020.8 ****** MAX. QNH PRESSURE IN HPA ****** 1024.2 1021.9 1020.2 1018.3 1015.8 1012.2 1013.3 1017.2 1025.8 1024.4 1025.9 ****** DAY ** 8 17 16 10 23 27 18 23 16 30 26 MIN. QNH PRESSURE IN HPA ****** 1010.0 1006.0 1006.9 1004.5 1005.0 1003.6 1006.4 1007.6 1012.2 1009.8 1014.1 ****** DAY ** 23 22 12 29 13 14 12 3 3 14 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** 890.4 889.1 886.6 885.7 882.0 880.9 883.6 885.6 893.1 892.2 893.7 ****** MAX. QFE PRESSURE IN HPA ****** 895.9 895.2 892.1 890.3 888.1 884.7 886.0 890.0 897.8 896.4 897.9 ****** DAY ** 8 17 16 9 23 27 25 23 16 30 7 MIN. QFE PRESSURE IN HPA ****** 882.6 880.5 880.1 877.8 878.4 877.1 879.6 881.5 885.9 886.1 887.5 ****** DAY ** 23 21 12 29 3 14 12 3 3 10 4 MEAN QNH PRESSURE IN HPA ****** 1017.8 1016.4 1013.6 1012.6 1008.4 1007.3 1010.3 1012.5 1020.9 1019.8 1021.5 ****** MAX. QNH PRESSURE IN HPA ****** 1024.0 1023.2 1019.7 1017.7 1015.3 1011.5 1012.9 1017.4 1026.1 1024.5 1026.2 ****** DAY ** 8 17 16 9 23 27 25 23 16 30 7 MIN. QNH PRESSURE IN HPA ****** 1009.2 1006.8 1006.4 1003.8 1004.5 1003.0 1005.8 1007.9 1012.8 1013.1 1014.6 ****** DAY ** 23 21 12 29 3 14 12 3 3 10 4 MEAN QFF PRESSURE IN HPA ****** 1017.4 1014.9 1008.3 1004.6 998.2 996.8 1000.6 1004.2 1017.3 1018.4 1022.3 ****** MAX. QFF PRESSURE IN HPA ****** 1025.7 1023.9 1016.6 1012.7 1007.4 1001.5 1004.7 1010.4 1023.6 1027.1 1029.5 ****** DAY ** 8 14 1 9 23 27 25 23 8 30 7 MIN. QFF PRESSURE IN HPA ****** 1007.8 1003.5 1000.2 994.3 993.6 991.7 995.3 998.5 1005.7 1009.9 1014.8 ****** DAY ** 23 21 12 29 21 14 12 3 3 10 4 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 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 9.5 10.2 17.3 22.1 28.6 34.4 34.7 34.2 25.8 21.2 18.7 8.9 22.1 MINIMUN AIR TEMPERATURE (C) 1.4 1.5 8.1 12.3 19.5 24.0 26.0 25.3 16.4 11.1 9.2 0.9 13.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 2 12 28 31 31 4 0 0 0 108 DAYS WITH MINIMUM TEMP. <=-4 2 2 0 0 0 0 0 0 0 0 0 8 12 DAYS WITH FREEZING MIN.<= 0 10 10 0 0 0 0 0 0 0 0 0 16 36 TEMPERATURE RECORDS LOWEST(C) -5.0 -7.0 0.6 2.4 15.0 20.5 22.0 22.0 11.8 5.0 3.0 -7.0 -7.0 DAY 12 21 3 5 10 3 2 10 27 13 12 8 MAXIMUM AIR TEMPERATURE (C) 14.1 15.5 22.1 26.7 32.6 38.6 38.9 38.3 30.1 25.2 23.4 13.7 26.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 8 25 30 31 31 16 2 0 0 143 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 22.8 20.6 28.0 36.5 36.0 44.6 42.2 42.0 37.0 32.0 27.8 22.6 44.6 DAY 5 1 31 26 15 22 18 4 1 2 7 20 DIF. BETWEEN (MAX.-MIN.) (C) 12.7 14.0 14.0 14.4 13.1 14.6 12.9 13.0 13.7 14.1 14.2 12.8 13.6 MEAN DAILY TEMP. (MDT) (C) 7.7 8.5 15.1 19.5 26.1 31.3 32.5 31.8 23.2 18.2 16.3 7.3 19.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 42.6 157.1 309.2 355.6 334.9 73.0 6.4 0.0 0.0 1278.9 HEATING DEG. DAYS(BASE 18 0C) 318.0 266.4 93.3 35.8 0.0 0.0 0.0 0.0 0.0 35.1 62.6 332.7 1143.9 DEWPOINT (MEAN C) -5.6 -8.8 -3.0 -2.0 2.0 1.5 4.4 7.1 -3.8 1.6 0.9 -5.9 -1.0 MIXING RATIO (G/KG) 3.16 2.34 3.71 4.07 5.24 4.99 6.15 7.49 3.66 5.19 4.82 3.07 4.49 VAPOUR PRESSURE (HPA) 4.49 3.33 5.26 5.76 7.40 7.00 8.60 10.47 5.18 7.37 6.85 4.37 6.34 SATURATION DEF. (HPA) 8.00 9.98 15.53 22.92 32.66 49.25 48.07 44.74 29.26 18.79 15.61 8.01 25.24 RELATIVE HUMIDITY (MEAN %) 41 29 29 23 20 13 16 20 16 29 33 38 26 RELATIVE HUMIDITY (MAX. %) 63 49 51 39 33 22 22 29 24 43 50 56 40 RELATIVE HUMIDITY (MIN. %) 26 17 18 15 13 9 12 14 10 22 23 23 17 RELATIVE HUMIDITY (MEAN% 03UTC) 63 48 51 38 32 22 22 28 22 42 47 53 39 RELATIVE HUMIDITY (MEAN% 09UTC) 32 21 23 17 15 11 14 18 13 25 25 28 20 RELATIVE HUMIDITY (MEAN% 15UTC) 36 26 23 20 19 11 15 17 15 28 35 40 24 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 5.6 2.2 2.3 14.0 1.0 0.0 0.0 0.0 0.0 2.0 3.0 15.0 45.1 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 0 1 1 DAYS WITH PRECIPITATION >= 5 0 0 0 1 0 0 0 0 0 0 0 1 2 DAYS WITH PRECIPITATION >= 1 2 1 2 3 1 0 0 0 0 1 1 2 13 DAYS WITH PRECIPITATION 5 3 4 4 1 0 0 0 0 1 1 3 22 GREATEST DAILY PRECIPITATION 4.0 2.0 1.0 8.0 1.0 0.0 0.0 0.0 0.0 2.0 3.0 12.0 12.0 DAY 24 25 13 3 2 ** ** ** ** 17 18 5 DAY WITH THUNDER STORM 0 0 0 1 0 0 0 0 0 0 0 1 2 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 1 4 3 2 5 3 2 1 0 0 1 1 23 WIND DIRECTION (PREVAILING) 360 360 180 360 360 45 45 45 45 360 225 360 45 PREVAILING WIND SPEED(KNOTS) 15.3 14.8 14.0 13.1 15.3 16.7 20.2 18.9 21.6 12.2 12.0 13.2 17.7 PREVAILING WIND PERCENT 19.4 16.4 20.0 26.2 21.3 25.3 77.4 71.6 50.7 26.5 19.3 22.6 24.5 CALMS PERCENT OF WIND 27.1 11.4 14.2 14.8 12.3 16.0 6.5 11.0 10.0 29.7 32.0 39.4 18.8 NO. OF WIND OBSERVATION 155 140 155 149 155 150 155 155 150 155 150 155 1824 VECTOR WIND DIRECTION (MEAN) 322 308 218 341 334 14 44 41 23 342 201 329 18 VECTOR WIND MAGNITUDE(KNOTS) 1.2 2.9 3.5 3.6 3.4 7.0 16.3 13.9 14.5 4.7 3.3 1.3 4.5 WIND STEADINESES (MEAN %) 14.1 25.2 33.0 40.0 29.3 60.3 93.7 89.1 83.8 61.0 44.0 17.8 39.8 WIND SPEED (MEAN KNOTS) 8.5 11.5 10.6 9.0 11.6 11.6 17.4 15.6 17.3 7.7 7.5 7.3 11.3 FASTEST WIND DIRECTION 30 190 190 360 250 280 50 60 30 350 270 180 50 FASTEST WIND SPEED (KNOTS) 29 29 29 23 31 25 41 31 31 35 29 29 41 DAY 10 1 12 4 1 5 13 6 6 25 26 4 DAYS WITH SKY CLEAR (0-2)/8 13 16 13 18 13 29 31 30 25 19 13 22 242 DAYS WITH P.CLOUDY (3-6)/8 13 11 13 7 15 1 0 1 5 12 14 7 99 DAYS WITH CLOUDY (7-8)/8 5 1 5 5 3 0 0 0 0 0 3 2 24 DAYS WITH VISIBILITY =< 2 KM 0 0 0 0 0 0 0 0 0 0 1 1 2 DURATION OF SUNSHINE HOURS 198.3 224.6 233.8 261.0 284.6 356.8 385.5 367.8 297.8 276.4 235.9 253.6 3376.1 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 891.7 888.2 889.1 888.6 886.7 880.7 879.1 881.3 889.4 892.8 891.9 893.3 887.7 MAX. QFE PRESSURE IN HPA 900.4 895.4 895.8 899.5 891.6 886.9 883.8 886.5 897.2 899.4 898.1 901.9 901.9 DAY-HOUR 28- 6 4- 6 18- 6 5- 6 8- 6 9- 6 14- 3 16- 6 23- 6 10- 6 2- 6 8- 6 MIN. QFE PRESSURE IN HPA 883.1 878.4 879.2 879.8 880.1 873.7 873.9 875.2 880.2 885.7 882.4 880.7 873.7 DAY-HOUR 16-15 12-12 12-12 2-15 1-15 29-12 20-15 1-12 1-12 2-12 26- 3 4- 3 MEAN QNH PRESSURE IN HPA 1019.3 1015.4 1016.3 1015.8 1013.7 1007.0 1005.2 1007.8 1016.7 1020.5 1019.5 1021.0 1014.9 MAX. QNH PRESSURE IN HPA 1029.0 1023.4 1023.9 1028.0 1019.2 1013.9 1010.5 1013.5 1025.4 1027.9 1026.4 1030.7 1030.7 DAY-HOUR 28- 6 4- 6 18- 6 5- 6 8- 6 9- 6 14- 3 16- 6 23- 6 10- 6 2- 6 8- 6 MIN. QNH PRESSURE IN HPA 1009.7 1004.5 1005.4 1006.0 1006.4 999.2 999.5 1000.9 1006.5 1012.6 1008.9 1007.0 999.2 DAY-HOUR 16-15 12-12 12-12 2-15 1-15 29-12 20-15 1-12 1-12 2-12 26- 3 4- 3 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 891.9 888.6 889.5 889.2 887.3 881.8 880.0 882.3 890.0 893.4 892.4 893.3 888.3 MAX. QFE PRESSURE IN HPA 899.0 893.0 894.7 897.6 890.8 886.3 883.8 886.4 896.2 898.3 896.8 900.8 900.8 DAY 28 21 18 5 8 9 14 16 23 10 2 8 MIN. QFE PRESSURE IN HPA 884.2 880.9 882.0 883.2 883.4 876.5 876.0 877.4 881.6 888.7 882.4 880.7 876.0 DAY 17 12 15 3 2 29 21 3 1 2 26 4 MEAN QNH PRESSURE IN HPA 1019.6 1015.8 1016.8 1016.5 1014.4 1008.3 1006.2 1008.9 1017.4 1021.2 1020.1 1021.1 1015.5 MAX. QNH PRESSURE IN HPA 1027.4 1020.7 1022.6 1025.9 1018.3 1013.3 1010.5 1013.4 1024.3 1026.7 1025.0 1029.4 1029.4 DAY 28 21 18 5 8 9 14 16 23 10 2 8 MIN. QNH PRESSURE IN HPA 1010.9 1007.3 1008.5 1009.8 1010.0 1002.4 1001.8 1003.4 1008.0 1016.0 1008.9 1007.0 1001.8 DAY 17 12 15 3 2 29 21 3 1 2 26 4 MEAN QFF PRESSURE IN HPA 1020.3 1016.4 1014.0 1011.3 1006.1 997.7 995.4 998.1 1010.7 1016.6 1017.0 1022.4 1010.5 MAX. QFF PRESSURE IN HPA 1030.2 1024.9 1022.2 1025.3 1012.1 1003.9 1001.1 1003.0 1018.9 1024.5 1021.9 1035.9 1035.9 DAY 28 21 3 5 8 1 14 16 23 10 21 8 MIN. QFF PRESSURE IN HPA 1010.0 1006.7 1004.9 1002.4 1002.6 990.1 990.5 990.7 997.7 1008.6 1004.2 1002.1 990.1 DAY 17 12 15 27 11 30 8 3 1 3 26 4 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 893.2 889.7 890.2 890.1 887.9 882.0 880.2 882.7 890.7 894.3 893.3 894.6 889.1 MAX. QFE PRESSURE IN HPA 900.4 895.4 895.8 899.5 891.6 886.9 883.4 886.5 897.2 899.4 898.1 901.9 901.9 DAY 28 4 18 5 8 9 14 16 23 10 2 8 MIN. QFE PRESSURE IN HPA 885.9 881.5 883.5 884.1 883.1 876.2 876.0 877.4 882.7 889.5 882.8 881.0 876.0 DAY 17 12 15 3 1 29 21 1 1 2 26 4 MEAN QNH PRESSURE IN HPA 1020.9 1017.0 1017.7 1017.5 1015.0 1008.5 1006.5 1009.3 1018.2 1022.2 1021.1 1022.5 1016.4 MAX. QNH PRESSURE IN HPA 1029.0 1023.4 1023.9 1028.0 1019.2 1013.9 1010.0 1013.5 1025.4 1027.9 1026.4 1030.7 1030.7 DAY 28 4 18 5 8 9 14 16 23 10 2 8 MIN. QNH PRESSURE IN HPA 1012.8 1007.9 1010.2 1010.8 1009.7 1002.0 1001.8 1003.4 1009.3 1016.8 1009.4 1007.4 1001.8 DAY 17 12 15 3 1 29 21 1 1 2 26 4 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 891.7 888.5 889.4 889.0 886.9 880.9 879.3 881.4 889.4 892.7 891.7 893.3 887.8 MAX. QFE PRESSURE IN HPA 899.2 894.6 894.9 898.9 890.5 885.9 882.4 885.0 895.7 897.7 896.7 900.0 900.0 DAY 28 4 18 5 21 9 3 16 23 10 2 8 MIN. QFE PRESSURE IN HPA 885.5 879.2 883.1 883.3 881.9 874.8 875.6 876.6 881.5 887.5 883.1 881.4 874.8 DAY 25 12 12 3 1 29 21 1 1 2 26 4 MEAN QNH PRESSURE IN HPA 1019.3 1015.7 1016.7 1016.2 1013.9 1007.3 1005.5 1007.8 1016.8 1020.4 1019.3 1021.0 1015.0 MAX. QNH PRESSURE IN HPA 1027.7 1022.5 1022.9 1027.3 1018.0 1012.8 1008.9 1011.8 1023.8 1026.0 1024.9 1028.5 1028.5 DAY 28 4 18 5 21 9 3 16 23 10 2 8 MIN. QNH PRESSURE IN HPA 1012.4 1005.4 1009.7 1009.9 1008.4 1000.5 1001.3 1002.5 1007.9 1014.6 1009.7 1007.8 1000.5 DAY 25 12 12 3 1 29 21 1 1 2 26 4 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 890.8 887.2 888.1 887.4 885.6 879.4 878.1 880.1 888.3 891.6 890.8 892.4 886.6 MAX. QFE PRESSURE IN HPA 898.0 892.7 893.2 897.8 889.2 884.5 880.9 883.2 894.8 896.4 895.5 898.3 898.3 DAY 28 4 18 5 21 9 13 15 23 10 2 8 MIN. QFE PRESSURE IN HPA 884.0 878.4 879.2 882.2 880.6 873.7 874.3 875.2 880.2 885.7 884.8 883.2 873.7 DAY 16 12 12 3 1 29 20 1 1 2 26 4 MEAN QNH PRESSURE IN HPA 1018.2 1014.2 1015.3 1014.5 1012.5 1005.6 1004.1 1006.3 1015.5 1019.2 1018.3 1020.0 1013.7 MAX. QNH PRESSURE IN HPA 1026.3 1020.4 1021.0 1026.1 1016.5 1011.3 1007.3 1009.8 1022.8 1024.5 1023.5 1026.7 1026.7 DAY 28 4 18 5 21 9 13 15 23 10 2 8 MIN. QNH PRESSURE IN HPA 1010.7 1004.5 1005.4 1008.7 1006.9 999.2 999.9 1000.9 1006.5 1012.6 1011.6 1009.8 999.2 DAY 16 12 12 3 1 29 20 1 1 2 26 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 891.2 887.3 888.2 887.1 885.7 879.5 877.9 880.3 888.5 892.0 891.4 892.8 886.8 MAX. QFE PRESSURE IN HPA 898.3 893.6 893.9 898.1 889.8 884.4 880.8 883.5 895.5 896.4 895.8 898.8 898.8 DAY 19 7 18 5 8 9 13 15 22 9 2 7 MIN. QFE PRESSURE IN HPA 883.1 880.6 879.3 879.8 880.1 874.2 873.9 875.4 880.4 886.1 886.3 881.2 873.9 DAY 16 12 12 2 1 28 20 1 1 2 25 4 MEAN QNH PRESSURE IN HPA 1018.8 1014.4 1015.4 1014.2 1012.6 1005.7 1003.9 1006.5 1015.7 1019.6 1019.0 1020.6 1013.9 MAX. QNH PRESSURE IN HPA 1026.7 1021.4 1021.8 1026.4 1017.2 1011.2 1007.1 1010.2 1023.5 1024.5 1023.9 1027.2 1027.2 DAY 19 7 18 5 8 9 13 15 22 9 2 7 MIN. QNH PRESSURE IN HPA 1009.7 1006.9 1005.5 1006.0 1006.4 999.8 999.5 1001.1 1006.7 1013.1 1013.3 1007.6 999.5 DAY 16 12 12 2 1 28 20 1 1 2 25 4 MEAN QFF PRESSURE IN HPA 1019.5 1014.9 1012.7 1008.9 1004.3 995.3 993.0 995.8 1009.0 1014.9 1015.8 1021.9 1008.8 MAX. QFF PRESSURE IN HPA 1029.4 1023.8 1021.4 1026.9 1010.4 1002.3 997.8 999.8 1018.8 1021.7 1020.3 1032.3 1032.3 DAY 19 4 3 5 8 9 13 16 22 9 21 8 MIN. QFF PRESSURE IN HPA 1008.3 1005.6 999.5 999.7 999.3 988.2 987.8 989.4 997.3 1006.0 1009.2 1003.3 987.8 DAY 5 1 12 26 1 28 8 1 1 2 25 4 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 2002,MAY M.(S & A) STATION KHOOR BIRJAND (99437) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 56 N LONGITUDE 58 26 E DATA PROCESSING CENTER ELEVATION 1117.4 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 9.8 10.8 13.8 21.1 27.1 33.1 37.1 34.2 28.7 22.3 16.7 7.9 21.9 MINIMUN AIR TEMPERATURE (C) 0.3 3.0 4.7 12.3 19.4 23.4 27.4 24.6 17.3 12.0 6.4 1.6 12.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 6 25 31 31 2 0 0 0 95 DAYS WITH MINIMUM TEMP. <=-4 2 0 0 0 0 0 0 0 0 0 1 0 3 DAYS WITH FREEZING MIN.<= 0 13 9 9 0 0 0 0 0 0 0 4 11 46 TEMPERATURE RECORDS LOWEST(C) -5.2 -3.0 -2.8 7.0 14.5 19.0 22.0 21.0 12.0 3.5 -4.0 -3.0 -5.2 DAY 10 26 7 8 1 2 26 22 24 30 29 1 MAXIMUM AIR TEMPERATURE (C) 14.9 15.3 18.4 25.3 30.7 36.8 40.9 38.5 34.3 27.8 22.6 11.9 26.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 17 30 31 31 28 13 0 0 151 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.8 21.4 24.8 30.8 37.0 42.5 44.0 41.0 37.5 35.0 28.5 17.0 44.0 DAY 31 5 25 4 7 16 15 12 11 6 2 3 DIF. BETWEEN (MAX.-MIN.) (C) 14.6 12.3 13.7 13.0 11.3 13.4 13.5 13.9 17.0 15.8 16.2 10.3 13.7 MEAN DAILY TEMP. (MDT) (C) 7.6 9.2 11.5 18.8 25.1 30.1 34.1 31.5 25.8 19.9 14.5 6.8 19.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 7.9 126.1 273.5 406.7 327.0 144.7 49.3 0.0 0.0 1335.2 HEATING DEG. DAYS(BASE 18 0C) 321.5 247.6 200.6 25.0 0.0 0.0 0.0 0.0 0.0 36.3 115.4 347.9 1294.2 DEWPOINT (MEAN C) -4.0 -4.0 -4.4 0.6 -4.1 3.0 9.1 1.1 -4.8 -4.6 -9.7 -1.6 -1.9 MIXING RATIO (G/KG) 3.34 3.58 3.79 5.12 3.62 5.74 9.59 5.09 3.26 3.30 2.28 4.07 4.40 VAPOUR PRESSURE (HPA) 4.76 5.08 5.37 7.22 5.12 8.06 13.28 7.16 4.63 4.70 3.25 5.80 6.20 SATURATION DEF. (HPA) 8.00 8.53 11.28 18.93 31.66 43.98 51.27 47.83 36.49 24.32 17.54 5.25 25.42 RELATIVE HUMIDITY (MEAN %) 41 41 36 32 15 16 21 14 13 19 18 57 27 RELATIVE HUMIDITY (MAX. %) 61 65 62 53 28 25 29 22 23 34 33 79 43 RELATIVE HUMIDITY (MIN. %) 27 25 22 20 8 12 15 9 7 11 10 41 17 RELATIVE HUMIDITY (MEAN% 03UTC) 58 62 61 51 26 24 28 22 23 33 30 75 41 RELATIVE HUMIDITY (MEAN% 09UTC) 31 29 27 26 14 14 17 12 11 13 12 47 21 RELATIVE HUMIDITY (MEAN% 15UTC) 44 39 31 30 11 14 20 10 7 17 19 59 25 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 9.8 29.0 42.4 78.5 0.0 0.0 0.0 0.0 0.0 0.2 0.0 22.2 182.1 DAYS WITH PRECIPITATION >=10 0 2 2 3 0 0 0 0 0 0 0 0 7 DAYS WITH PRECIPITATION >= 5 1 2 2 4 0 0 0 0 0 0 0 2 11 DAYS WITH PRECIPITATION >= 1 1 5 5 8 0 0 0 0 0 0 0 5 24 DAYS WITH PRECIPITATION 5 6 6 10 0 0 0 0 0 1 0 10 38 GREATEST DAILY PRECIPITATION 8.4 12.0 18.0 35.0 0.0 0.0 0.0 0.0 0.0 0.2 0.0 7.0 35.0 DAY 13 7 19 25 **