STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** 22.7 14.6 8.2 2.7 ***** MINIMUN AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** 9.2 2.4 1.4 -2.8 ***** DAYS WITH MINIMUM TEMP. >=21 **** **** **** **** **** **** **** **** 0 0 0 0 **** DAYS WITH MINIMUM TEMP. <=-4 **** **** **** **** **** **** **** **** 0 0 1 14 **** DAYS WITH FREEZING MIN.<= 0 **** **** **** **** **** **** **** **** 0 9 16 24 **** TEMPERATURE RECORDS LOWEST(C) ***** ***** ***** ***** ***** ***** ***** ***** 3.0 -1.0 -4.0 -7.0 ***** DAY ** ** ** ** ** ** ** ** 28 26 27 7 MAXIMUM AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** 30.0 21.8 15.5 9.5 ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** **** **** **** **** **** **** 20 0 0 0 **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** **** **** **** **** **** **** 0 0 0 0 **** TEMPERATURE RECORDS HIGHEST(C)***** ***** ***** ***** ***** ***** ***** ***** 34.0 27.0 18.0 16.0 ***** DAY ** ** ** ** ** ** ** ** 8 5 1 1 DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** ***** ***** ***** ***** ***** ***** 20.8 19.4 14.1 12.3 ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** ***** ***** ***** ***** ***** ***** 19.6 12.1 8.4 3.4 ***** COOLING DEG. DAYS(BASE 21 0C)****** ****** ****** ****** ****** ****** ****** ****** 10.0 0.0 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C)****** ****** ****** ****** ****** ****** ****** ****** 12.5 183.0 286.5 396.0 ****** DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** ***** 1.4 -0.2 -1.0 -3.3 ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** ****** 5.45 4.90 4.58 3.88 ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** ****** 6.90 6.23 5.82 4.91 ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** ****** 23.12 11.82 5.62 2.85 ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** *** 27 40 55 67 *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** *** *** *** *** 45 66 76 85 *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** *** *** *** *** 16 25 34 42 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** *** 45 64 70 78 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** *** *** *** *** 20 31 41 51 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** *** 22 35 53 65 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. ****** ****** ****** ****** ****** ****** ****** 0.0 0.0 0.0 6.0 9.0 ****** DAYS WITH PRECIPITATION >=10 **** **** **** **** **** **** **** 0 0 0 0 0 **** DAYS WITH PRECIPITATION >= 5 **** **** **** **** **** **** **** 0 0 0 0 1 **** DAYS WITH PRECIPITATION >= 1 **** **** **** **** **** **** **** 0 0 0 3 2 **** DAYS WITH PRECIPITATION **** **** **** **** **** **** **** 0 0 0 3 3 **** GREATEST DAILY PRECIPITATION ****** ****** ****** ****** ****** ****** ****** 0.0 0.0 0.0 3.0 8.0 ****** DAY ** ** ** ** ** ** ** ** ** ** 13 31 DAY WITH THUNDER STORM **** **** **** **** **** **** **** 0 0 0 0 0 **** DAYS WITH SNOW OR SLEET **** **** **** **** **** **** **** 0 0 0 0 3 **** DAYS WITH DUST **** **** **** **** **** **** **** 0 0 0 0 0 **** WIND DIRECTION (PREVAILING) *** *** *** *** *** *** *** *** 225 90 225 225 *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** **** **** **** **** 7.1 8.0 9.0 8.4 **** PREVAILING WIND PERCENT ***** ***** ***** ***** ***** ***** ***** ***** 11.3 7.1 16.4 5.5 ***** CALMS PERCENT OF WIND ***** ***** ***** ***** ***** ***** ***** ***** 73.3 87.7 66.4 87.4 ***** NO. OF WIND OBSERVATION **** **** **** **** **** **** **** 57 150 155 214 238 814 VECTOR WIND DIRECTION (MEAN) *** *** *** *** *** *** *** *** 195 85 228 237 *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** **** **** **** **** 0.9 0.2 2.1 0.7 **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** ***** ***** ***** ***** 50.0 18.2 80.8 77.8 ***** WIND SPEED (MEAN KNOTS) **** **** **** **** **** **** **** **** 1.8 1.1 2.6 0.9 **** FASTEST WIND DIRECTION *** *** *** *** *** *** *** *** 230 230 270 270 *** FASTEST WIND SPEED (KNOTS) *** *** *** *** *** *** *** *** 15 18 20 16 *** DAY ** ** ** ** ** ** ** ** 28 30 23 19 DAYS WITH SKY CLEAR (0-2)/8 **** **** **** **** **** **** **** 12 29 24 15 12 **** DAYS WITH P.CLOUDY (3-6)/8 **** **** **** **** **** **** **** 0 1 7 12 14 **** DAYS WITH CLOUDY (7-8)/8 **** **** **** **** **** **** **** 0 0 0 3 5 **** DAYS WITH VISIBILITY =< 2 KM **** **** **** **** **** **** **** 0 0 0 0 4 **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. 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QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1009.5 1007.1 ****** DAY ** ** ** ** ** ** ** ** ** ** 11 8 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 795.0 798.0 796.7 793.1 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 800.2 801.9 800.2 798.7 ****** DAY ** ** ** ** ** ** ** ** 21 18 16 2 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 789.6 795.6 793.1 786.0 ****** DAY ** ** ** ** ** ** ** ** 1 1 24 29 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1018.9 1022.6 1021.0 1016.6 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1025.3 1027.4 1025.3 1023.5 ****** DAY ** ** ** ** ** ** ** ** 21 18 16 2 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1012.3 1019.7 1016.6 1007.9 ****** DAY ** ** ** ** ** ** ** ** 1 1 24 29 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1005.3 1016.0 1017.2 1016.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1013.1 1022.0 1024.1 1024.9 ****** DAY ** ** ** ** ** ** ** ** 21 18 16 21 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 996.2 1010.1 1010.3 1004.6 ****** DAY ** ** ** ** ** ** ** ** 1 6 23 29 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1024.7 1026.4 ****** DAY ** ** ** ** ** ** ** ** ** ** 16 23 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1010.8 1004.7 ****** DAY ** ** ** ** ** ** ** ** ** ** 23 29 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 794.0 797.1 796.4 793.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 799.9 801.5 800.9 800.3 ****** DAY ** ** ** ** ** ** ** ** 21 18 16 2 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 788.8 794.1 792.9 785.4 ****** DAY ** ** ** ** ** ** ** ** 1 7 8 29 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1017.7 1021.6 1020.7 1016.7 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1024.9 1026.9 1026.1 1025.4 ****** DAY ** ** ** ** ** ** ** ** 21 18 16 2 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1011.3 1017.8 1016.4 1007.2 ****** DAY ** ** ** ** ** ** ** ** 1 7 8 29 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1014.9 1014.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1021.5 1021.6 ****** DAY ** ** ** ** ** ** ** ** ** ** 16 22 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1009.6 1002.4 ****** DAY ** ** ** ** ** ** ** ** ** ** 23 29 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 792.9 796.0 795.6 792.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 798.3 799.9 799.6 799.4 ****** DAY ** ** ** ** ** ** ** ** 21 18 16 2 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 787.9 792.9 792.3 785.8 ****** DAY ** ** ** ** ** ** ** ** 1 1 1 29 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1016.3 1020.2 1019.6 1015.6 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1023.0 1024.9 1024.6 1024.3 ****** DAY ** ** ** ** ** ** ** ** 21 18 16 2 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1010.2 1016.4 1015.6 1007.7 ****** DAY ** ** ** ** ** ** ** ** 1 1 1 29 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1014.4 1013.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1020.1 1019.0 ****** DAY ** ** ** ** ** ** ** ** ** ** 16 22 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1008.6 1007.1 ****** DAY ** ** ** ** ** ** ** ** ** ** 23 4 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 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 ****** ****** ****** ****** ****** ****** ****** ****** 792.8 796.1 796.1 792.7 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 797.9 799.7 799.4 799.1 ****** DAY ** ** ** ** ** ** ** ** 21 17 16 2 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 787.9 792.7 792.9 785.9 ****** DAY ** ** ** ** ** ** ** ** 1 1 1 29 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1016.2 1020.2 1020.2 1016.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1022.5 1024.7 1024.3 1023.9 ****** DAY ** ** ** ** ** ** ** ** 21 17 16 2 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1010.2 1016.1 1016.4 1007.8 ****** DAY ** ** ** ** ** ** ** ** 1 1 1 29 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1002.5 1013.5 1016.4 1016.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1009.8 1019.0 1023.2 1024.0 ****** DAY ** ** ** ** ** ** ** ** 22 17 16 23 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 993.9 1006.2 1009.9 1005.7 ****** DAY ** ** ** ** ** ** ** ** 1 1 23 29 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 797.0 793.8 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 799.9 798.9 ****** DAY ** ** ** ** ** ** ** ** ** ** 16 21 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 794.3 788.0 ****** DAY ** ** ** ** ** ** ** ** ** ** 24 28 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1021.4 1017.4 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1024.9 1023.7 ****** DAY ** ** ** ** ** ** ** ** ** ** 16 21 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1018.1 1010.4 ****** DAY ** ** ** ** ** ** ** ** ** ** 24 28 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1015.9 1016.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1022.3 1024.8 ****** DAY ** ** ** ** ** ** ** ** ** ** 16 21 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1010.2 1008.4 ****** DAY ** ** ** ** ** ** ** ** ** ** 23 28 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 797.1 793.5 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 799.6 798.9 ****** DAY ** ** ** ** ** ** ** ** ** ** 16 1 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 794.2 787.8 ****** DAY ** ** ** ** ** ** ** ** ** ** 23 28 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1021.5 1017.1 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1024.6 1023.7 ****** DAY ** ** ** ** ** ** ** ** ** ** 16 1 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1017.9 1010.1 ****** DAY ** ** ** ** ** ** ** ** ** ** 23 28 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1014.9 1014.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1020.2 1022.0 ****** DAY ** ** ** ** ** ** ** ** ** ** 16 21 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1009.6 1005.7 ****** DAY ** ** ** ** ** ** ** ** ** ** 10 28 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -7.9 2.1 5.2 10.4 16.1 22.0 24.4 22.3 19.4 13.0 6.9 -0.5 11.1 MINIMUN AIR TEMPERATURE (C) -17.1 -3.2 0.1 3.4 5.2 10.2 13.9 11.9 7.8 0.8 -2.4 -5.5 2.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH MINIMUM TEMP. <=-4 13 12 3 2 0 0 0 0 0 1 15 18 64 DAYS WITH FREEZING MIN.<= 0 14 21 17 5 0 0 0 0 0 12 25 27 121 TEMPERATURE RECORDS LOWEST(C) -26.0 -16.0 -5.0 -8.0 1.0 5.0 10.0 10.0 3.0 -4.0 -6.0 -20.0 -26.0 DAY 19 2 6 2 1 1 4 6 24 31 3 24 MAXIMUM AIR TEMPERATURE (C) -1.1 8.6 11.3 17.5 25.8 31.8 33.2 30.1 28.0 22.2 16.9 5.6 19.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 4 30 29 19 11 0 0 0 93 DAYS WITH MAXIMUM TEMP. <= 0 17 0 0 0 0 0 0 0 0 0 0 7 24 TEMPERATURE RECORDS HIGHEST(C) 8.0 13.0 16.0 23.0 31.0 35.0 38.0 32.0 31.0 25.0 21.0 16.0 38.0 DAY 28 17 14 25 30 26 15 4 10 3 4 5 DIF. BETWEEN (MAX.-MIN.) (C) 16.0 11.8 11.2 14.1 20.6 21.6 19.3 18.2 20.2 21.4 19.3 11.1 17.1 MEAN DAILY TEMP. (MDT) (C) -9.1 2.7 5.7 10.4 15.5 21.0 23.6 21.0 17.9 11.5 7.3 0.0 10.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.0 20.0 80.0 14.5 0.0 0.0 0.0 0.0 114.5 HEATING DEG. DAYS(BASE 18 0C) 417.5 443.5 369.5 226.5 80.5 0.5 0.0 0.0 27.0 200.5 321.5 557.0 2644.0 DEWPOINT (MEAN C) -9.7 -3.2 -2.5 -0.1 -0.6 2.1 6.6 3.1 0.9 -4.6 -7.4 -6.0 -1.8 MIXING RATIO (G/KG) 2.80 3.97 4.16 4.98 4.77 5.81 8.16 6.16 5.28 3.54 2.83 3.31 4.65 VAPOUR PRESSURE (HPA) 3.54 5.02 5.23 6.29 6.03 7.32 10.22 7.78 6.68 4.50 3.60 4.20 5.87 SATURATION DEF. (HPA) 1.41 2.80 3.97 7.19 14.18 21.22 22.13 20.49 17.86 12.15 7.21 2.24 11.07 RELATIVE HUMIDITY (MEAN %) 70 67 61 52 35 29 36 30 31 32 38 70 46 RELATIVE HUMIDITY (MAX. %) 84 83 80 74 58 46 55 49 52 53 62 82 65 RELATIVE HUMIDITY (MIN. %) 49 46 41 31 19 17 21 19 19 18 22 54 30 RELATIVE HUMIDITY (MEAN% 03UTC) 63 75 72 68 51 42 52 46 51 52 57 69 58 RELATIVE HUMIDITY (MEAN% 09UTC) 72 57 48 35 22 20 25 21 23 22 24 65 36 RELATIVE HUMIDITY (MEAN% 15UTC) 74 64 55 43 26 21 28 23 26 24 32 70 41 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 11.6 29.3 25.0 9.0 0.0 0.0 37.0 0.0 0.0 1.0 0.0 49.6 162.5 DAYS WITH PRECIPITATION >=10 1 1 1 0 0 0 2 0 0 0 0 2 7 DAYS WITH PRECIPITATION >= 5 1 3 1 1 0 0 2 0 0 0 0 3 11 DAYS WITH PRECIPITATION >= 1 1 4 5 2 0 0 2 0 0 1 0 6 21 DAYS WITH PRECIPITATION 1 4 5 5 0 0 4 0 0 1 0 9 29 GREATEST DAILY PRECIPITATION 11.6 13.0 17.0 5.0 0.0 0.0 22.0 0.0 0.0 1.0 0.0 22.0 22.0 DAY 1 29 2 23 ** ** 21 ** ** 29 ** 21 DAY WITH THUNDER STORM 0 0 0 0 0 0 3 0 0 0 0 0 3 DAYS WITH SNOW OR SLEET 3 0 4 1 0 0 0 0 0 0 0 8 16 DAYS WITH DUST 0 1 0 0 0 0 0 0 1 0 2 0 4 WIND DIRECTION (PREVAILING) 180 180 270 270 270 270 90 90 225 225 180 180 270 PREVAILING WIND SPEED(KNOTS) 8.1 6.8 8.7 9.0 7.3 4.8 7.7 6.6 7.8 5.5 8.2 8.6 7.6 PREVAILING WIND PERCENT 7.4 9.9 18.7 17.2 21.5 8.3 8.5 12.6 9.6 4.4 9.6 7.3 7.0 CALMS PERCENT OF WIND 90.1 80.2 64.2 64.7 71.3 85.8 82.2 74.5 73.9 85.0 87.1 87.1 78.6 NO. OF WIND OBSERVATION 203 232 246 238 247 240 247 239 188 180 240 248 2748 VECTOR WIND DIRECTION (MEAN) 160 210 243 253 262 248 122 121 216 195 174 181 218 VECTOR WIND MAGNITUDE(KNOTS) 0.6 0.9 2.3 1.9 1.7 0.3 0.6 0.9 1.1 0.3 0.8 0.7 0.7 WIND STEADINESES (MEAN %) 75.0 56.3 79.3 65.5 81.0 37.5 46.2 52.9 68.7 42.9 80.0 70.0 46.7 WIND SPEED (MEAN KNOTS) 0.8 1.6 2.9 2.9 2.1 0.8 1.3 1.7 1.6 0.7 1.0 1.0 1.5 FASTEST WIND DIRECTION 180 180 270 270 230 180 90 90 230 230 180 180 270 FASTEST WIND SPEED (KNOTS) 17 18 22 27 20 12 16 17 16 10 18 20 27 DAY 15 24 24 30 4 12 1 16 27 24 8 8 DAYS WITH SKY CLEAR (0-2)/8 17 9 10 10 31 30 22 24 29 29 19 12 242 DAYS WITH P.CLOUDY (3-6)/8 7 11 10 11 0 0 7 5 1 2 10 7 71 DAYS WITH CLOUDY (7-8)/8 7 9 11 9 0 0 2 1 0 0 1 10 50 DAYS WITH VISIBILITY =< 2 KM 9 0 2 1 0 0 0 0 0 0 2 13 27 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 792.5 792.3 788.7 792.3 792.3 791.5 790.2 793.0 794.0 797.1 797.0 795.0 793.0 MAX. QFE PRESSURE IN HPA 800.3 799.2 795.0 798.1 796.3 799.8 795.3 799.0 799.3 809.0 803.2 802.9 809.0 DAY-HOUR 26- 6 5- 6 6- 6 15-21 13- 6 19- 9 30- 6 30- 6 6- 6 13- 9 20- 6 3- 6 MIN. QFE PRESSURE IN HPA 783.2 784.0 782.4 784.2 786.2 781.0 784.2 787.3 789.4 789.9 790.0 788.4 781.0 DAY-HOUR 15- 9 29- 3 18- 3 30- 3 1- 0 21-21 15-15 15-15 23-12 28-15 8- 9 21-18 MEAN QNH PRESSURE IN HPA 1015.9 1015.6 1011.3 1015.6 1015.6 1014.7 1013.0 1016.5 1017.7 1021.5 1021.4 1018.9 1016.5 MAX. QNH PRESSURE IN HPA 1025.4 1024.1 1018.9 1022.7 1020.5 1024.8 1019.3 1023.8 1024.2 1036.0 1029.0 1028.6 1036.0 DAY-HOUR 26- 6 5- 6 6- 6 15-21 13- 6 19- 9 30- 6 30- 6 6- 6 13- 9 20- 6 3- 6 MIN. QNH PRESSURE IN HPA 1004.5 1005.5 1003.5 1005.7 1008.2 1001.8 1005.7 1009.5 1012.1 1012.7 1012.8 1010.9 1001.8 DAY-HOUR 15- 9 29- 3 18- 3 30- 3 1- 0 21-21 15-15 15-15 23-12 28-15 8- 9 21-18 MEAN QFF PRESSURE IN HPA ****** 1013.6 1007.4 1007.4 1002.9 997.1 993.2 998.7 1004.0 ****** 1016.7 1020.7 ****** MAX. QFF PRESSURE IN HPA ****** 1027.1 1019.1 1023.8 1010.9 1007.0 1001.1 1008.7 1015.2 ****** 1029.4 1040.4 ****** DAY-HOUR **-** 5- 6 5- 6 2- 3 11- 3 19- 9 29- 3 30- 3 30- 3 **-** 21- 3 24-15 MIN. QFF PRESSURE IN HPA ****** 1000.2 997.6 995.1 994.4 982.7 983.8 991.0 995.4 ****** 1002.5 1007.1 ****** DAY-HOUR **-** 29- 0 23- 0 30- 3 27- 9 21-21 15-21 15-12 23- 9 **-** 8- 9 8- 9 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 793.7 792.1 788.5 791.9 792.2 791.5 790.3 793.0 794.4 ****** 797.0 794.9 ****** MAX. QFE PRESSURE IN HPA 799.1 798.1 793.4 797.3 795.8 794.3 794.2 797.0 797.3 ****** 802.0 801.5 ****** DAY 21 5 14 11 14 8 25 30 1 ** 21 3 MIN. QFE PRESSURE IN HPA 787.0 784.7 782.6 784.6 786.2 787.3 786.0 789.2 790.8 ****** 791.2 789.0 ****** DAY 31 29 18 30 1 28 16 15 24 ** 8 22 MEAN QNH PRESSURE IN HPA 1017.3 1015.4 1010.9 1015.1 1015.5 1014.7 1013.2 1016.5 1018.3 ****** 1021.4 1018.8 ****** MAX. QNH PRESSURE IN HPA 1023.9 1022.7 1017.0 1021.7 1019.9 1018.1 1017.9 1021.4 1021.7 ****** 1027.5 1026.9 ****** DAY 21 5 14 11 14 8 25 30 1 ** 21 3 MIN. QNH PRESSURE IN HPA 1009.1 1006.3 1003.8 1006.2 1008.2 1009.5 1007.9 1011.8 1013.8 ****** 1014.3 1011.6 ****** DAY 31 29 18 30 1 28 16 15 24 ** 8 22 MEAN QFF PRESSURE IN HPA ****** 1012.9 1006.6 1006.7 1003.0 997.4 993.5 998.7 ****** ****** 1015.5 1019.7 ****** MAX. QFF PRESSURE IN HPA ****** 1022.9 1015.7 1021.6 1009.2 1003.2 1000.0 1005.1 ****** ****** 1022.4 1036.3 ****** DAY ** 13 6 2 11 8 3 30 ** ** 21 25 MIN. QFF PRESSURE IN HPA ****** 1000.2 997.6 995.5 995.4 990.9 985.7 992.9 ****** ****** 1004.5 1009.5 ****** DAY ** 29 23 30 27 28 16 15 ** ** 8 6 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 792.1 792.2 788.7 792.2 792.4 792.2 790.8 793.7 794.6 797.8 797.4 795.0 793.3 MAX. QFE PRESSURE IN HPA 799.0 798.2 794.0 797.5 795.6 795.0 794.7 797.9 799.0 801.0 803.1 801.5 803.1 DAY 26 5 6 11 14 6 25 30 6 14 21 3 MIN. QFE PRESSURE IN HPA 784.4 784.0 782.4 784.2 787.0 788.5 786.4 789.8 791.0 792.5 791.0 789.0 782.4 DAY 15 29 18 30 1 28 16 15 9 29 8 11 MEAN QNH PRESSURE IN HPA 1015.4 1015.6 1011.3 1015.6 1015.8 1015.5 1013.8 1017.3 1018.4 1022.4 1021.9 1018.9 1016.8 MAX. QNH PRESSURE IN HPA 1023.8 1022.8 1017.7 1022.0 1019.7 1018.9 1018.6 1022.5 1023.8 1026.3 1028.8 1026.9 1028.8 DAY 26 5 6 11 14 6 25 30 6 14 21 3 MIN. QNH PRESSURE IN HPA 1006.0 1005.5 1003.5 1005.7 1009.1 1011.0 1008.4 1012.6 1014.0 1015.9 1014.0 1011.6 1003.5 DAY 15 29 18 30 1 28 16 15 9 29 8 11 MEAN QFF PRESSURE IN HPA 1020.7 1014.6 1008.5 1008.8 1004.8 999.3 995.8 1001.3 1006.1 1016.3 1020.2 1022.1 1009.9 MAX. QFF PRESSURE IN HPA 1035.2 1026.2 1018.1 1023.8 1010.9 1005.1 1001.1 1008.7 1015.2 1022.0 1029.4 1039.9 1039.9 DAY 18 5 6 2 11 14 29 30 30 25 21 24 MIN. QFF PRESSURE IN HPA 1006.4 1000.8 1000.1 995.1 995.3 993.0 987.3 995.8 999.8 1011.5 1006.9 1010.1 987.3 DAY 15 29 29 30 27 28 16 5 11 17 8 10 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 793.1 793.4 789.7 793.0 793.0 792.5 791.2 794.4 795.1 798.6 798.4 796.2 794.1 MAX. QFE PRESSURE IN HPA 800.3 799.2 795.0 798.0 796.3 796.1 795.3 799.0 799.3 801.9 803.2 802.9 803.2 DAY 26 5 6 15 13 6 30 30 6 26 20 3 MIN. QFE PRESSURE IN HPA 783.5 784.6 783.5 786.7 787.5 787.0 787.2 790.3 791.6 793.9 791.6 790.5 783.5 DAY 15 29 18 5 1 28 16 15 9 29 8 11 MEAN QNH PRESSURE IN HPA 1016.6 1017.0 1012.5 1016.5 1016.5 1015.8 1014.3 1018.2 1019.0 1023.4 1023.1 1020.4 1017.8 MAX. QNH PRESSURE IN HPA 1025.4 1024.1 1018.9 1022.6 1020.5 1020.3 1019.3 1023.8 1024.2 1027.4 1029.0 1028.6 1029.0 DAY 26 5 6 15 13 6 30 30 6 26 20 3 MIN. QNH PRESSURE IN HPA 1004.9 1006.2 1004.9 1008.8 1009.8 1009.1 1009.4 1013.2 1014.8 1017.6 1014.8 1013.4 1004.9 DAY 15 29 18 5 1 28 16 15 9 29 8 11 MEAN QFF PRESSURE IN HPA ****** 1015.5 1008.9 1008.0 1003.1 997.6 993.6 999.7 ****** ****** 1018.8 1022.3 ****** MAX. QFF PRESSURE IN HPA ****** 1027.1 1019.1 1023.2 1009.0 1003.3 998.9 1007.6 ****** ****** 1027.1 1040.1 ****** DAY ** 5 5 2 2 6 30 30 ** ** 21 24 MIN. QFF PRESSURE IN HPA ****** 1001.1 1000.9 1000.4 994.6 989.1 985.6 993.2 ****** ****** 1005.9 1009.3 ****** DAY ** 29 18 27 27 28 16 15 ** ** 8 8 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 792.3 792.9 789.2 792.6 792.5 792.1 790.5 793.5 794.0 797.5 796.9 795.2 793.3 MAX. QFE PRESSURE IN HPA 799.5 798.3 794.3 798.0 795.2 799.8 794.8 798.5 798.5 809.0 802.3 801.3 809.0 DAY 26 5 14 15 5 19 25 30 1 13 20 3 MIN. QFE PRESSURE IN HPA 783.2 784.9 783.4 786.6 788.0 786.5 786.7 789.5 790.4 791.8 790.0 790.0 783.2 DAY 15 29 18 30 1 28 16 15 23 28 8 10 MEAN QNH PRESSURE IN HPA 1015.7 1016.4 1011.8 1016.0 1015.9 1015.4 1013.4 1017.1 1017.7 1022.0 1021.3 1019.2 1016.8 MAX. QNH PRESSURE IN HPA 1024.4 1023.0 1018.1 1022.6 1019.2 1024.8 1018.7 1023.2 1023.2 1036.0 1027.9 1026.6 1036.0 DAY 26 5 14 15 5 19 25 30 1 13 20 3 MIN. QNH PRESSURE IN HPA 1004.5 1006.6 1004.7 1008.7 1010.4 1008.5 1008.8 1012.2 1013.3 1015.0 1012.8 1012.8 1004.5 DAY 15 29 18 30 1 28 16 15 23 28 8 10 MEAN QFF PRESSURE IN HPA ****** 1013.8 1007.1 1007.4 1002.4 997.0 992.4 997.8 ****** ****** 1014.5 1019.8 ****** MAX. QFF PRESSURE IN HPA ****** 1024.0 1013.4 1018.7 1007.7 1007.0 998.4 1006.7 ****** ****** 1022.0 1037.0 ****** DAY ** 5 6 2 11 19 25 30 ** ** 20 24 MIN. QFF PRESSURE IN HPA ****** 1002.0 999.9 1000.7 994.4 988.7 985.0 991.1 ****** ****** 1002.5 1007.1 ****** DAY ** 29 18 27 27 28 16 15 ** ** 8 8 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 791.4 791.5 788.3 791.6 791.6 790.8 789.3 792.3 792.9 795.7 795.8 794.4 792.1 MAX. QFE PRESSURE IN HPA 798.9 798.0 793.3 797.2 794.8 794.6 794.0 797.4 798.7 799.1 801.0 800.0 801.0 DAY 26 4 6 15 13 6 25 30 21 13 20 2 MIN. QFE PRESSURE IN HPA 783.4 784.7 782.8 785.5 787.1 786.1 784.7 788.2 789.4 790.0 790.4 789.8 782.8 DAY 15 29 29 30 27 28 15 15 23 28 8 10 MEAN QNH PRESSURE IN HPA 1014.5 1014.7 1010.8 1014.8 1014.8 1013.7 1011.9 1015.6 1016.4 1019.8 1019.9 1018.2 1015.4 MAX. QNH PRESSURE IN HPA 1023.7 1022.6 1016.8 1021.6 1018.7 1018.4 1017.7 1021.9 1023.5 1023.9 1026.3 1025.0 1026.3 DAY 26 4 6 15 13 6 25 30 21 13 20 2 MIN. QNH PRESSURE IN HPA 1004.7 1006.3 1004.0 1007.3 1009.3 1008.0 1006.3 1010.6 1012.1 1012.8 1013.3 1012.6 1004.0 DAY 15 29 29 30 27 28 15 15 23 28 8 10 MEAN QFF PRESSURE IN HPA ****** 1012.1 1006.3 1006.0 1001.8 996.2 992.1 997.7 ****** ****** 1013.9 1019.1 ****** MAX. QFF PRESSURE IN HPA ****** 1022.9 1014.0 1015.9 1006.0 1002.3 998.2 1005.7 ****** ****** 1021.2 1036.6 ****** DAY ** 4 5 1 3 6 30 30 ** ** 20 24 MIN. QFF PRESSURE IN HPA ****** 1002.3 999.4 999.7 994.5 989.0 984.1 991.0 ****** ****** 1004.1 1009.1 ****** DAY ** 29 29 29 27 27 15 15 ** ** 8 8 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 791.6 791.7 788.2 791.7 791.6 790.5 789.1 791.8 792.9 795.8 796.2 794.6 792.1 MAX. QFE PRESSURE IN HPA 798.6 798.2 794.1 797.0 795.1 794.0 793.5 796.5 799.3 799.2 801.2 800.2 801.2 DAY 26 4 6 15 5 7 25 30 25 25 20 2 MIN. QFE PRESSURE IN HPA 784.1 785.6 783.2 785.8 787.0 786.0 784.2 787.3 789.5 789.9 790.9 788.6 783.2 DAY 15 29 29 5 27 27 15 15 9 28 8 21 MEAN QNH PRESSURE IN HPA 1014.7 1014.9 1010.7 1014.9 1014.7 1013.4 1011.7 1015.1 1016.4 1020.0 1020.4 1018.4 1015.4 MAX. QNH PRESSURE IN HPA 1023.3 1022.8 1017.8 1021.4 1019.0 1017.7 1017.1 1020.8 1024.2 1024.1 1026.5 1025.3 1026.5 DAY 26 4 6 15 5 7 25 30 25 25 20 2 MIN. QNH PRESSURE IN HPA 1005.6 1007.4 1004.5 1007.7 1009.1 1007.9 1005.7 1009.5 1012.2 1012.7 1013.9 1011.1 1004.5 DAY 15 29 29 5 27 27 15 15 9 28 8 21 MEAN QFF PRESSURE IN HPA 1019.8 1013.4 1007.8 1008.1 1003.2 997.0 993.6 999.0 1004.1 1013.8 1018.6 1021.6 1008.3 MAX. QFF PRESSURE IN HPA 1038.4 1024.5 1017.1 1020.0 1007.7 1002.0 999.2 1006.9 1014.9 1020.5 1025.7 1040.4 1040.4 DAY 18 5 6 1 12 14 2 30 25 25 20 24 MIN. QFF PRESSURE IN HPA 1007.1 1004.3 999.6 999.6 994.6 989.7 985.5 992.4 998.1 1008.8 1007.3 1011.4 985.5 DAY 31 29 29 29 27 27 15 15 10 28 8 8 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 794.1 792.3 788.8 792.4 792.6 791.3 790.1 792.7 ****** ****** 797.1 795.0 ****** MAX. QFE PRESSURE IN HPA 799.1 798.4 793.8 797.9 795.8 794.2 793.4 797.0 ****** ****** 801.3 801.2 ****** DAY 26 4 5 15 5 7 30 30 ** ** 20 2 MIN. QFE PRESSURE IN HPA 787.4 787.2 783.5 786.0 788.1 787.5 785.7 788.3 ****** ****** 791.9 788.4 ****** DAY 31 29 2 29 27 19 15 15 ** ** 8 21 MEAN QNH PRESSURE IN HPA 1017.8 1015.6 1011.3 1015.8 1016.0 1014.4 1012.9 1016.1 ****** ****** 1021.4 1018.9 ****** MAX. QNH PRESSURE IN HPA 1023.9 1023.1 1017.5 1022.5 1019.9 1017.9 1017.0 1021.4 ****** ****** 1026.6 1026.5 ****** DAY 26 4 5 15 5 7 30 30 ** ** 20 2 MIN. QNH PRESSURE IN HPA 1009.6 1009.4 1004.9 1007.9 1010.5 1009.8 1007.6 1010.7 ****** ****** 1015.1 1010.9 ****** DAY 31 29 2 29 27 19 15 15 ** ** 8 21 MEAN QFF PRESSURE IN HPA ****** 1014.3 1007.8 1007.5 1002.5 996.3 992.5 997.8 ****** ****** 1017.1 1021.1 ****** MAX. QFF PRESSURE IN HPA ****** 1025.9 1018.8 1020.8 1008.9 1001.7 996.9 1004.1 ****** ****** 1023.4 1038.4 ****** DAY ** 5 5 1 1 7 24 30 ** ** 20 24 MIN. QFF PRESSURE IN HPA ****** 1004.7 1000.9 998.7 994.8 990.0 984.7 991.3 ****** ****** 1007.2 1009.1 ****** DAY ** 28 17 29 27 27 15 15 ** ** 8 9 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 793.9 792.3 788.6 792.7 792.7 791.3 790.4 793.0 ****** ****** 797.2 794.9 ****** MAX. QFE PRESSURE IN HPA 798.7 798.5 793.8 798.1 795.7 794.2 794.0 797.4 ****** ****** 801.8 801.2 ****** DAY 26 4 5 15 13 12 24 30 ** ** 20 2 MIN. QFE PRESSURE IN HPA 787.9 785.9 783.5 786.1 788.4 781.0 785.8 789.8 ****** ****** 791.6 788.6 ****** DAY 30 28 17 29 27 21 15 4 ** ** 8 21 MEAN QNH PRESSURE IN HPA 1017.6 1015.6 1011.1 1016.1 1016.1 1014.5 1013.3 1016.5 ****** ****** 1021.7 1018.8 ****** MAX. QNH PRESSURE IN HPA 1023.5 1023.2 1017.5 1022.7 1019.8 1017.9 1017.7 1021.9 ****** ****** 1027.2 1026.5 ****** DAY 26 4 5 15 13 12 24 30 ** ** 20 2 MIN. QNH PRESSURE IN HPA 1010.2 1007.8 1004.9 1008.0 1010.9 1001.8 1007.7 1012.6 ****** ****** 1014.8 1011.1 ****** DAY 30 28 17 29 27 21 15 4 ** ** 8 21 MEAN QFF PRESSURE IN HPA ****** 1012.9 1006.5 1007.2 1002.5 996.0 992.5 997.5 ****** ****** 1015.1 1019.7 ****** MAX. QFF PRESSURE IN HPA ****** 1024.3 1014.4 1020.8 1008.4 1001.7 997.6 1004.1 ****** ****** 1022.5 1036.9 ****** DAY ** 5 5 1 10 12 2 30 ** ** 20 24 MIN. QFF PRESSURE IN HPA ****** 1001.6 999.3 996.6 995.9 982.7 983.8 992.1 ****** ****** 1004.7 1008.4 ****** DAY ** 28 22 29 27 21 15 4 ** ** 7 9 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -6.9 -5.9 2.9 8.1 13.7 21.5 24.1 22.3 21.0 13.1 5.4 1.7 10.1 MINIMUN AIR TEMPERATURE (C) -13.0 -12.9 -3.0 2.5 6.7 10.4 13.3 11.4 6.8 3.7 -0.6 -4.5 1.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH MINIMUM TEMP. <=-4 29 26 10 0 0 0 0 0 0 0 2 17 84 DAYS WITH FREEZING MIN.<= 0 31 28 25 7 0 0 0 0 0 1 22 28 142 TEMPERATURE RECORDS LOWEST(C) -27.0 -27.0 -17.0 -1.0 2.0 7.0 9.0 7.0 4.0 -1.0 -5.0 -12.0 -27.0 DAY 26 7 1 2 3 7 5 30 22 14 25 29 MAXIMUM AIR TEMPERATURE (C) 0.5 2.2 10.0 15.1 20.7 28.4 31.6 30.0 27.7 22.3 12.5 9.5 17.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 14 27 20 2 0 0 0 63 DAYS WITH MAXIMUM TEMP. <= 0 14 6 0 0 0 0 0 0 0 0 0 0 20 TEMPERATURE RECORDS HIGHEST(C) 8.0 9.0 16.0 21.0 28.0 33.0 34.0 34.0 30.0 28.0 19.0 16.0 34.0 DAY 30 14 21 15 30 20 21 11 7 1 1 17 DIF. BETWEEN (MAX.-MIN.) (C) 13.5 15.1 13.0 12.6 14.0 18.0 18.3 18.6 20.9 18.6 13.1 14.0 15.8 MEAN DAILY TEMP. (MDT) (C) -6.2 -5.3 3.5 8.8 13.7 19.4 22.4 20.7 17.2 13.0 6.0 2.5 9.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.0 6.0 48.5 12.0 0.0 0.0 0.0 0.0 66.5 HEATING DEG. DAYS(BASE 18 0C) 751.0 653.5 449.5 276.0 133.0 13.0 0.0 0.0 29.0 155.0 361.0 479.5 3300.5 DEWPOINT (MEAN C) -10.4 -9.2 -2.8 0.4 2.5 4.0 4.0 3.8 3.3 1.9 0.1 -4.8 -0.6 MIXING RATIO (G/KG) 2.50 2.68 4.11 5.07 5.90 6.51 6.62 6.53 6.26 5.61 4.97 3.50 5.02 VAPOUR PRESSURE (HPA) 3.16 3.40 5.20 6.41 7.45 8.20 8.32 8.24 7.92 7.13 6.30 4.44 6.35 SATURATION DEF. (HPA) 0.91 1.00 2.93 5.02 9.10 18.84 23.13 20.09 18.50 9.24 3.21 3.00 9.58 RELATIVE HUMIDITY (MEAN %) 77 78 68 61 49 34 29 32 34 51 71 65 54 RELATIVE HUMIDITY (MAX. %) 84 85 82 76 65 51 45 48 52 75 88 84 70 RELATIVE HUMIDITY (MIN. %) 69 68 51 43 33 22 19 21 22 29 49 40 39 RELATIVE HUMIDITY (MEAN% 03UTC) 76 79 76 71 59 50 44 47 52 73 85 81 66 RELATIVE HUMIDITY (MEAN% 09UTC) 75 74 58 46 37 25 21 23 27 33 54 48 43 RELATIVE HUMIDITY (MEAN% 15UTC) 80 78 65 57 46 30 23 28 28 41 66 56 50 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 87.8 65.3 88.2 43.5 22.0 0.0 0.0 1.0 0.0 8.3 68.5 0.8 385.4 DAYS WITH PRECIPITATION >=10 4 2 4 1 0 0 0 0 0 0 2 0 13 DAYS WITH PRECIPITATION >= 5 5 3 5 4 2 0 0 0 0 1 4 0 24 DAYS WITH PRECIPITATION >= 1 6 7 6 9 5 0 0 1 0 1 5 0 40 DAYS WITH PRECIPITATION 9 8 10 12 6 0 0 2 0 3 8 2 60 GREATEST DAILY PRECIPITATION 26.0 22.0 32.0 13.0 8.0 0.0 0.0 1.0 0.0 8.0 37.0 0.5 37.0 DAY 20 26 25 29 25 ** ** 17 ** 24 8 7 DAY WITH THUNDER STORM 0 0 3 1 0 0 0 0 0 1 1 0 6 DAYS WITH SNOW OR SLEET 12 7 5 3 0 0 0 0 0 0 4 0 31 DAYS WITH DUST 0 0 0 0 0 0 0 1 0 0 0 0 1 WIND DIRECTION (PREVAILING) 225 225 270 180 270 270 135 135 135 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 6.2 4.5 7.8 7.1 7.4 5.1 11.0 9.2 7.3 4.9 4.8 5.9 6.3 PREVAILING WIND PERCENT 9.3 1.8 10.1 12.9 19.0 9.8 6.9 5.8 2.6 20.4 13.8 15.3 9.2 CALMS PERCENT OF WIND 89.1 97.8 73.0 67.5 66.0 72.2 76.2 77.8 92.2 59.2 59.2 66.1 74.0 NO. OF WIND OBSERVATION 248 224 248 240 247 194 231 225 153 240 240 248 2738 VECTOR WIND DIRECTION (MEAN) 221 238 234 212 232 239 181 149 227 268 232 259 226 VECTOR WIND MAGNITUDE(KNOTS) 0.6 0.1 1.7 1.3 1.7 1.0 0.9 0.7 0.2 0.6 0.6 1.1 0.8 WIND STEADINESES (MEAN %) 85.7 100.0 81.0 52.0 60.7 52.6 42.9 41.2 33.3 28.6 28.6 57.9 47.1 WIND SPEED (MEAN KNOTS) 0.7 0.1 2.1 2.5 2.8 1.9 2.1 1.7 0.6 2.1 2.1 1.9 1.7 FASTEST WIND DIRECTION 230 230 270 230 180 230 130 130 270 270 50 230 270 FASTEST WIND SPEED (KNOTS) 16 5 27 16 18 20 20 25 15 15 18 16 27 DAY 6 11 29 9 6 5 28 6 13 17 7 20 DAYS WITH SKY CLEAR (0-2)/8 11 19 10 10 13 24 28 24 27 22 9 18 215 DAYS WITH P.CLOUDY (3-6)/8 7 5 12 9 12 6 3 7 3 7 13 10 94 DAYS WITH CLOUDY (7-8)/8 13 4 9 11 6 0 0 0 0 2 8 3 56 DAYS WITH VISIBILITY =< 2 KM 13 5 4 1 0 0 0 3 0 0 6 0 32 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 789.9 793.3 792.2 792.5 793.2 792.1 791.1 793.2 796.3 797.5 795.1 794.5 793.4 MAX. QFE PRESSURE IN HPA 798.4 800.3 799.4 799.0 799.5 796.5 797.6 798.6 800.8 802.7 800.1 800.7 802.7 DAY-HOUR 26- 6 8- 6 2- 6 17- 6 28-18 18- 3 30- 6 4- 6 22- 6 30- 6 14- 6 17- 6 MIN. QFE PRESSURE IN HPA 778.0 784.0 783.7 786.4 788.8 786.2 785.4 786.8 792.5 793.0 787.5 787.0 778.0 DAY-HOUR 19-15 5- 0 14-12 3-12 21-12 7-12 13-15 8-12 14-12 12- 0 18-12 6-21 MEAN QNH PRESSURE IN HPA 1012.7 1016.9 1015.4 1015.9 1016.8 1015.4 1014.2 1016.8 1020.5 1021.9 1019.1 1018.3 1017.0 MAX. QNH PRESSURE IN HPA 1023.1 1025.4 1024.3 1023.8 1024.4 1020.8 1022.1 1023.3 1026.0 1028.3 1025.2 1025.9 1028.3 DAY-HOUR 26- 6 8- 6 2- 6 17- 6 28-18 18- 3 30- 6 4- 6 22- 6 30- 6 14- 6 17- 6 MIN. QNH PRESSURE IN HPA 998.1 1005.5 1005.1 1008.4 1011.3 1008.2 1007.2 1008.9 1015.9 1016.5 1009.8 1009.1 998.1 DAY-HOUR 19-15 5- 0 14-12 3-12 21-12 7-12 13-15 8-12 14-12 12- 0 18-12 6-21 MEAN QFF PRESSURE IN HPA 1020.4 1023.6 1013.9 1009.6 1005.8 999.5 995.2 999.3 ****** 1011.9 1015.2 1017.9 ****** MAX. QFF PRESSURE IN HPA 1044.8 1045.8 1035.7 1017.7 1012.5 1006.1 1004.5 1007.8 ****** 1020.1 1025.1 1031.3 ****** DAY-HOUR 26- 6 8-15 2- 3 17- 3 28-15 17- 3 30- 3 31- 3 **-** 25- 3 24- 3 30- 6 MIN. QFF PRESSURE IN HPA 998.8 1005.1 999.5 1003.4 998.1 992.2 988.0 991.0 ****** 1005.0 1005.6 1005.2 ****** DAY-HOUR 19-12 27- 9 31-12 3-12 21-18 29-18 14-18 8-18 **-** 9-12 18-12 6-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 789.6 792.5 792.0 792.1 793.0 ****** 791.1 793.0 ****** 797.7 795.1 794.4 ****** MAX. QFE PRESSURE IN HPA 796.8 798.8 798.0 798.0 799.0 ****** 796.8 796.8 ****** 801.2 799.0 799.3 ****** DAY 14 8 2 17 29 ** 30 4 ** 19 14 15 MIN. QFE PRESSURE IN HPA 778.6 784.0 786.0 786.9 789.5 ****** 787.3 787.9 ****** 793.0 789.5 787.2 ****** DAY 20 5 26 4 8 ** 14 9 ** 12 18 7 MEAN QNH PRESSURE IN HPA 1012.3 1015.9 1015.2 1015.3 1016.5 ****** 1014.2 1016.5 ****** 1022.2 1019.1 1018.2 ****** MAX. QNH PRESSURE IN HPA 1021.1 1023.6 1022.6 1022.6 1023.8 ****** 1021.1 1021.1 ****** 1026.5 1023.8 1024.2 ****** DAY 14 8 2 17 29 ** 30 4 ** 19 14 15 MIN. QNH PRESSURE IN HPA 998.9 1005.5 1007.9 1009.0 1012.2 ****** 1009.5 1010.2 ****** 1016.5 1012.2 1009.4 ****** DAY 20 5 26 4 8 ** 14 9 ** 12 18 7 MEAN QFF PRESSURE IN HPA 1019.2 1021.8 1013.2 1009.0 1005.9 ****** 995.2 999.1 ****** 1011.7 1014.6 1016.9 ****** MAX. QFF PRESSURE IN HPA 1039.3 1041.6 1031.4 1015.4 1012.1 ****** 1003.3 1004.6 ****** 1017.0 1021.8 1027.1 ****** DAY 26 8 2 17 29 ** 31 17 ** 25 25 30 MIN. QFF PRESSURE IN HPA 1000.0 1006.3 1003.1 1003.6 1000.2 ****** 990.7 992.4 ****** 1006.7 1006.2 1006.9 ****** DAY 20 27 7 28 22 ** 23 9 ** 11 18 7 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 789.6 792.8 792.0 792.4 793.4 792.9 791.9 794.2 797.2 798.0 795.3 794.8 793.7 MAX. QFE PRESSURE IN HPA 796.5 799.0 798.3 798.4 798.3 796.5 797.4 798.0 799.8 801.5 799.3 799.5 801.5 DAY 26 8 2 17 29 18 30 4 10 19 14 15 MIN. QFE PRESSURE IN HPA 778.8 784.5 786.0 787.6 790.2 788.3 787.7 788.7 795.0 793.9 788.4 787.8 778.8 DAY 20 5 7 4 8 6 12 9 28 12 18 7 MEAN QNH PRESSURE IN HPA 1012.4 1016.3 1015.3 1015.8 1016.9 1016.4 1015.2 1017.9 1021.6 1022.6 1019.3 1018.6 1017.4 MAX. QNH PRESSURE IN HPA 1020.8 1023.8 1023.0 1023.1 1023.0 1020.8 1021.9 1022.6 1024.8 1026.9 1024.2 1024.4 1026.9 DAY 26 8 2 17 29 18 30 4 10 19 14 15 MIN. QNH PRESSURE IN HPA 999.1 1006.1 1007.9 1009.9 1013.1 1010.7 1010.0 1011.2 1018.9 1017.6 1010.9 1010.1 999.1 DAY 20 5 7 4 8 6 12 9 28 12 18 7 MEAN QFF PRESSURE IN HPA 1022.0 1025.4 1015.4 1010.9 1007.4 1001.5 997.7 1002.4 1008.9 1014.9 1017.2 1020.0 1012.0 MAX. QFF PRESSURE IN HPA 1043.2 1045.6 1035.7 1017.7 1012.0 1006.1 1004.5 1007.8 1012.0 1020.1 1025.1 1031.2 1045.6 DAY 26 8 2 17 29 17 30 31 27 25 24 30 MIN. QFF PRESSURE IN HPA 1001.4 1007.2 1003.9 1004.6 1002.7 996.8 992.3 994.0 1004.5 1009.7 1007.0 1009.2 992.3 DAY 20 27 7 28 22 29 12 9 1 3 18 7 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 791.2 794.4 793.1 793.2 794.0 793.1 792.2 794.5 797.8 798.8 796.5 795.9 794.6 MAX. QFE PRESSURE IN HPA 798.4 800.3 799.4 799.0 799.0 796.5 797.6 798.6 800.8 802.7 800.1 800.7 802.7 DAY 26 8 2 17 29 18 30 4 22 30 14 17 MIN. QFE PRESSURE IN HPA 780.0 786.0 786.0 788.3 791.0 788.1 787.9 789.2 794.7 794.8 789.1 789.4 780.0 DAY 20 5 14 3 7 7 12 9 28 11 18 7 MEAN QNH PRESSURE IN HPA 1014.2 1018.1 1016.6 1016.8 1017.6 1016.6 1015.5 1018.4 1022.3 1023.6 1020.8 1020.0 1018.4 MAX. QNH PRESSURE IN HPA 1023.1 1025.4 1024.3 1023.8 1023.8 1020.8 1022.1 1023.3 1026.0 1028.3 1025.2 1025.9 1028.3 DAY 26 8 2 17 29 18 30 4 22 30 14 17 MIN. QNH PRESSURE IN HPA 1000.6 1007.9 1007.9 1010.7 1014.0 1010.5 1010.2 1011.8 1018.6 1018.7 1011.7 1012.1 1000.6 DAY 20 5 14 3 7 7 12 9 28 11 18 7 MEAN QFF PRESSURE IN HPA 1022.4 1025.0 1015.1 1010.0 1006.1 999.7 995.7 1000.0 ****** 1013.0 1016.9 1019.9 ****** MAX. QFF PRESSURE IN HPA 1044.8 1045.7 1034.5 1015.4 1010.9 1004.1 1002.0 1004.5 ****** 1019.1 1024.7 1031.3 ****** DAY 26 8 2 17 11 17 5 4 ** 30 24 30 MIN. QFF PRESSURE IN HPA 1002.8 1007.8 1002.1 1004.9 1001.2 993.9 990.9 991.8 ****** 1006.6 1007.3 1008.4 ****** DAY 19 27 31 28 22 30 15 9 ** 11 18 7 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 790.2 793.9 792.6 792.7 793.3 792.4 791.4 793.5 796.6 797.4 795.2 794.5 793.6 MAX. QFE PRESSURE IN HPA 797.6 800.0 799.2 797.8 798.5 795.5 797.0 797.6 799.0 800.7 799.0 799.0 800.7 DAY 25 8 2 17 29 17 29 4 10 30 14 18 MIN. QFE PRESSURE IN HPA 779.5 785.4 784.2 787.2 790.0 786.6 787.4 788.0 795.0 794.0 787.8 788.9 779.5 DAY 19 5 14 3 21 7 14 8 28 11 18 7 MEAN QNH PRESSURE IN HPA 1013.1 1017.5 1016.0 1016.1 1016.9 1015.7 1014.5 1017.1 1020.9 1021.9 1019.1 1018.3 1017.3 MAX. QNH PRESSURE IN HPA 1022.1 1025.0 1024.1 1022.4 1023.2 1019.5 1021.4 1022.1 1023.8 1025.9 1023.8 1023.8 1025.9 DAY 25 8 2 17 29 17 29 4 10 30 14 18 MIN. QNH PRESSURE IN HPA 1000.0 1007.2 1005.7 1009.4 1012.8 1008.7 1009.6 1010.4 1018.9 1017.7 1010.1 1011.5 1000.0 DAY 19 5 14 3 21 7 14 8 28 11 18 7 MEAN QFF PRESSURE IN HPA 1019.4 1022.5 1013.6 1008.9 1005.2 ****** 994.4 997.7 ****** 1010.5 1014.1 1016.6 ****** MAX. QFF PRESSURE IN HPA 1040.4 1039.8 1031.4 1014.2 1009.7 ****** 1001.5 1002.8 ****** 1015.3 1022.0 1026.7 ****** DAY 25 8 1 17 10 ** 30 4 ** 30 24 30 MIN. QFF PRESSURE IN HPA 1000.2 1005.1 1001.8 1003.6 999.9 ****** 990.0 992.1 ****** 1006.0 1006.2 1006.6 ****** DAY 19 27 14 3 21 ** 14 8 ** 9 18 20 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 789.4 793.1 791.6 792.0 792.6 791.3 790.2 792.3 795.0 796.2 794.0 793.5 792.6 MAX. QFE PRESSURE IN HPA 796.7 799.0 798.4 797.0 797.6 794.5 796.1 796.3 797.4 799.1 797.1 798.4 799.1 DAY 14 19 2 16 29 17 25 4 9 30 14 17 MIN. QFE PRESSURE IN HPA 778.2 785.0 783.7 786.4 788.8 786.2 786.0 786.8 792.5 793.0 787.5 788.8 778.2 DAY 19 5 14 3 21 7 13 8 14 22 18 7 MEAN QNH PRESSURE IN HPA 1012.1 1016.6 1014.7 1015.3 1016.0 1014.4 1013.1 1015.7 1019.0 1020.4 1017.7 1017.1 1016.0 MAX. QNH PRESSURE IN HPA 1021.0 1023.8 1023.1 1021.4 1022.1 1018.3 1020.3 1020.5 1021.9 1023.9 1021.5 1023.1 1023.9 DAY 14 19 2 16 29 17 25 4 9 30 14 17 MIN. QNH PRESSURE IN HPA 998.4 1006.7 1005.1 1008.4 1011.3 1008.2 1007.9 1008.9 1015.9 1016.5 1009.8 1011.3 998.4 DAY 19 5 14 3 21 7 13 8 14 22 18 7 MEAN QFF PRESSURE IN HPA 1018.6 1022.2 1012.4 1008.8 1005.0 ****** 993.9 997.4 ****** 1009.9 1013.1 1015.8 ****** MAX. QFF PRESSURE IN HPA 1038.9 1041.4 1030.9 1013.6 1010.3 ****** 1001.3 1003.2 ****** 1015.5 1020.2 1024.5 ****** DAY 26 8 1 10 28 ** 30 4 ** 24 24 30 MIN. QFF PRESSURE IN HPA 998.8 1007.9 999.5 1003.4 998.9 ****** 989.7 991.3 ****** 1005.0 1005.6 1007.7 ****** DAY 19 11 31 3 22 ** 21 8 ** 9 18 20 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 789.6 793.2 791.8 792.1 792.8 791.5 790.0 792.2 795.1 796.6 794.6 793.9 792.8 MAX. QFE PRESSURE IN HPA 797.0 799.2 798.6 797.2 799.0 794.8 795.4 796.0 797.5 799.8 797.1 798.8 799.8 DAY 14 8 2 16 28 17 29 31 10 29 14 17 MIN. QFE PRESSURE IN HPA 778.0 786.1 784.7 786.9 788.9 788.3 785.4 787.3 792.5 793.3 789.1 789.3 778.0 DAY 19 5 31 4 21 7 13 8 14 22 18 6 MEAN QNH PRESSURE IN HPA 1012.3 1016.7 1015.0 1015.4 1016.2 1014.6 1012.8 1015.6 1019.1 1020.8 1018.4 1017.5 1016.2 MAX. QNH PRESSURE IN HPA 1021.4 1024.1 1023.3 1021.6 1023.8 1018.7 1019.4 1020.2 1022.0 1024.8 1021.5 1023.6 1024.8 DAY 14 8 2 16 28 17 29 31 10 29 14 17 MIN. QNH PRESSURE IN HPA 998.1 1008.0 1006.3 1009.0 1011.5 1010.7 1007.2 1009.5 1015.9 1016.8 1011.7 1012.0 998.1 DAY 19 5 31 4 21 7 13 8 14 22 18 6 MEAN QFF PRESSURE IN HPA 1021.7 1025.8 1014.8 1010.3 1006.3 999.5 995.2 999.8 1006.2 1012.9 1016.2 1018.9 1010.6 MAX. QFF PRESSURE IN HPA 1042.0 1045.8 1034.9 1015.6 1012.5 1003.7 1002.1 1005.4 1010.5 1018.0 1022.7 1029.5 1045.8 DAY 25 8 2 16 28 16 30 31 30 24 25 30 MIN. QFF PRESSURE IN HPA 999.8 1008.7 1003.0 1005.6 1000.7 994.6 989.5 992.9 1002.4 1008.3 1009.2 1010.8 989.5 DAY 19 26 31 3 31 29 14 13 14 4 18 6 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 790.2 793.5 792.2 792.8 793.5 792.5 791.0 793.1 ****** 797.6 795.2 794.5 ****** MAX. QFE PRESSURE IN HPA 797.8 799.0 798.8 798.6 799.5 795.6 796.9 796.8 ****** 800.3 798.8 799.5 ****** DAY 14 8 2 16 28 17 29 4 ** 29 13 17 MIN. QFE PRESSURE IN HPA 778.4 787.0 786.2 787.1 789.3 789.7 786.2 788.4 ****** 794.6 789.5 789.0 ****** DAY 19 4 31 3 21 29 14 8 ** 22 18 6 MEAN QNH PRESSURE IN HPA 1013.0 1017.1 1015.5 1016.3 1017.1 1015.9 1014.0 1016.7 ****** 1022.1 1019.2 1018.3 ****** MAX. QNH PRESSURE IN HPA 1022.4 1023.8 1023.6 1023.3 1024.4 1019.7 1021.3 1021.1 ****** 1025.4 1023.6 1024.4 ****** DAY 14 8 2 16 28 17 29 4 ** 29 13 17 MIN. QNH PRESSURE IN HPA 998.6 1009.1 1008.2 1009.3 1012.0 1012.4 1008.2 1010.9 ****** 1018.4 1012.2 1011.6 ****** DAY 19 4 31 3 21 29 14 8 ** 22 18 6 MEAN QFF PRESSURE IN HPA 1021.0 1024.0 1013.8 1009.6 1005.4 998.9 994.5 998.6 ****** 1011.3 1015.3 1018.2 ****** MAX. QFF PRESSURE IN HPA 1042.3 1045.6 1032.7 1015.2 1009.8 1003.0 1001.3 1003.0 ****** 1016.5 1022.8 1028.6 ****** DAY 25 8 2 12 28 17 29 16 ** 24 24 29 MIN. QFF PRESSURE IN HPA 1000.9 1008.9 1001.6 1005.9 998.1 992.2 988.0 991.0 ****** 1006.0 1008.4 1008.4 ****** DAY 19 26 31 3 21 29 14 8 ** 3 28 6 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 789.8 793.3 792.1 792.8 793.5 ****** 791.2 792.8 ****** 797.7 795.1 794.4 ****** MAX. QFE PRESSURE IN HPA 797.5 799.3 798.3 798.7 799.2 ****** 797.2 797.0 ****** 800.5 799.0 799.6 ****** DAY 14 8 1 16 28 ** 29 4 ** 18 13 17 MIN. QFE PRESSURE IN HPA 778.5 785.0 786.7 787.2 789.5 ****** 786.5 788.6 ****** 793.8 790.0 787.0 ****** DAY 19 4 31 3 21 ** 13 8 ** 11 18 6 MEAN QNH PRESSURE IN HPA 1012.6 1016.8 1015.3 1016.3 1017.1 ****** 1014.3 1016.2 ****** 1022.2 1019.1 1018.3 ****** MAX. QNH PRESSURE IN HPA 1022.0 1024.2 1023.0 1023.5 1024.1 ****** 1021.6 1021.4 ****** 1025.7 1023.8 1024.6 ****** DAY 14 8 1 16 28 ** 29 4 ** 18 13 17 MIN. QNH PRESSURE IN HPA 998.7 1006.7 1008.8 1009.4 1012.2 ****** 1008.5 1011.1 ****** 1017.5 1012.8 1009.1 ****** DAY 19 4 31 3 21 ** 13 8 ** 11 18 6 MEAN QFF PRESSURE IN HPA 1019.0 1022.1 1012.9 1009.2 1005.4 ****** 994.4 997.5 ****** 1010.8 1014.2 1016.7 ****** MAX. QFF PRESSURE IN HPA 1039.4 1039.2 1030.7 1016.3 1011.1 ****** 1001.6 1002.6 ****** 1015.2 1022.3 1026.8 ****** DAY 25 7 1 16 28 ** 30 16 ** 29 24 29 MIN. QFF PRESSURE IN HPA 999.6 1006.0 1004.6 1004.7 998.1 ****** 990.4 991.3 ****** 1006.0 1007.3 1005.2 ****** DAY 19 26 6 19 21 ** 22 13 ** 10 17 6 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.3 -0.3 8.4 13.7 16.6 20.9 23.9 24.2 21.4 15.7 6.4 4.6 13.1 MINIMUN AIR TEMPERATURE (C) -4.0 -7.1 2.1 5.5 7.8 10.3 13.6 14.1 8.1 3.4 -2.2 -1.2 4.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH MINIMUM TEMP. <=-4 17 22 1 0 0 0 0 0 0 0 11 8 59 DAYS WITH FREEZING MIN.<= 0 28 27 12 2 0 0 0 0 0 4 21 22 116 TEMPERATURE RECORDS LOWEST(C) -11.0 -18.0 -5.0 -2.0 4.0 7.0 8.0 11.0 4.0 -1.0 -14.0 -8.0 -18.0 DAY 1 2 1 7 2 9 11 18 25 16 23 21 MAXIMUM AIR TEMPERATURE (C) 8.8 8.3 15.8 21.7 24.6 29.7 33.0 33.3 30.0 23.2 12.2 9.7 20.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 1 14 28 31 18 0 0 0 92 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 16.0 16.0 19.0 26.0 30.0 34.0 36.0 35.0 34.0 29.0 24.0 14.0 36.0 DAY 14 28 20 26 16 30 1 11 8 2 5 10 DIF. BETWEEN (MAX.-MIN.) (C) 12.8 15.4 13.7 16.2 16.8 19.4 19.4 19.2 21.9 19.8 14.4 10.9 16.7 MEAN DAILY TEMP. (MDT) (C) 2.4 0.6 9.0 13.6 16.2 20.0 23.3 23.7 19.0 13.3 5.0 4.2 12.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.0 10.0 77.0 83.0 8.0 0.0 0.0 0.0 178.0 HEATING DEG. DAYS(BASE 18 0C) 483.5 488.0 279.5 131.5 63.0 0.5 0.0 0.0 18.5 145.0 390.0 427.0 2426.5 DEWPOINT (MEAN C) -4.7 -6.7 -1.5 -0.2 2.7 4.6 4.6 3.7 -0.2 -0.6 -2.3 -1.2 -0.1 MIXING RATIO (G/KG) 3.52 3.06 4.48 4.87 6.04 6.85 6.90 6.47 4.86 4.71 4.19 4.56 5.04 VAPOUR PRESSURE (HPA) 4.46 3.89 5.67 6.17 7.65 8.63 8.68 8.14 6.15 5.99 5.33 5.78 6.38 SATURATION DEF. (HPA) 2.60 2.75 5.95 10.53 12.43 17.70 23.10 23.98 21.86 13.46 5.30 3.13 11.90 RELATIVE HUMIDITY (MEAN %) 68 65 53 41 42 36 30 28 26 37 58 69 46 RELATIVE HUMIDITY (MAX. %) 85 82 75 58 62 54 43 42 46 61 81 86 65 RELATIVE HUMIDITY (MIN. %) 42 45 32 25 26 23 19 17 14 22 40 48 29 RELATIVE HUMIDITY (MEAN% 03UTC) 80 79 66 54 58 47 41 40 46 60 76 78 60 RELATIVE HUMIDITY (MEAN% 09UTC) 52 50 39 28 27 26 23 20 18 28 49 63 35 RELATIVE HUMIDITY (MEAN% 15UTC) 62 63 50 35 36 29 23 20 19 32 57 73 42 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 59.0 5.0 53.1 8.0 15.7 2.4 0.0 0.0 0.0 0.0 13.0 67.0 223.2 DAYS WITH PRECIPITATION >=10 2 0 1 0 0 0 0 0 0 0 1 3 7 DAYS WITH PRECIPITATION >= 5 4 0 5 1 2 0 0 0 0 0 1 4 17 DAYS WITH PRECIPITATION >= 1 5 2 6 3 3 1 0 0 0 0 2 6 28 DAYS WITH PRECIPITATION 7 3 7 4 6 2 1 0 0 2 3 6 41 GREATEST DAILY PRECIPITATION 33.0 4.0 26.0 6.0 6.0 2.0 0.0 0.0 0.0 0.0 12.0 24.0 33.0 DAY 30 1 7 23 25 1 ** ** ** ** 30 1 DAY WITH THUNDER STORM 0 0 2 0 3 0 0 0 0 0 0 0 5 DAYS WITH SNOW OR SLEET 4 3 1 0 0 0 0 0 0 0 0 2 10 DAYS WITH DUST 0 0 0 1 0 0 0 0 0 1 0 0 2 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 7.1 7.2 7.4 7.7 7.4 6.8 4.8 4.8 5.0 6.5 6.8 6.5 6.6 PREVAILING WIND PERCENT 16.9 11.3 23.5 33.8 21.1 22.3 14.5 20.2 25.6 23.2 20.7 21.9 21.2 CALMS PERCENT OF WIND 62.9 76.0 47.0 52.1 58.5 64.7 69.4 64.0 67.4 60.6 72.0 67.1 62.8 NO. OF WIND OBSERVATION 248 204 247 240 246 238 248 247 172 155 150 155 2550 VECTOR WIND DIRECTION (MEAN) 269 287 259 275 282 265 222 243 270 254 263 262 266 VECTOR WIND MAGNITUDE(KNOTS) 1.5 1.2 2.8 3.2 2.0 1.6 0.6 0.7 1.5 2.8 1.8 1.9 1.8 WIND STEADINESES (MEAN %) 68.2 80.0 75.7 82.1 60.6 66.7 33.3 36.8 88.2 90.3 90.0 95.0 72.0 WIND SPEED (MEAN KNOTS) 2.2 1.5 3.7 3.9 3.3 2.4 1.8 1.9 1.7 3.1 2.0 2.0 2.5 FASTEST WIND DIRECTION 270 270 230 310 270 50 90 270 270 230 270 230 310 FASTEST WIND SPEED (KNOTS) 20 20 25 35 30 30 15 15 15 35 20 25 35 DAY 31 23 26 18 3 15 14 16 11 13 21 10 DAYS WITH SKY CLEAR (0-2)/8 14 20 14 13 16 29 28 30 30 26 11 14 245 DAYS WITH P.CLOUDY (3-6)/8 8 6 11 12 15 1 2 1 0 4 13 10 83 DAYS WITH CLOUDY (7-8)/8 9 2 6 5 0 0 1 0 0 1 6 7 37 DAYS WITH VISIBILITY =< 2 KM 4 1 0 2 0 0 0 0 0 1 0 2 10 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 793.4 793.8 793.5 794.6 796.5 792.8 790.6 791.9 793.8 797.1 797.3 795.3 794.2 MAX. QFE PRESSURE IN HPA 800.8 799.8 798.5 801.2 803.6 797.9 798.9 796.2 798.4 803.5 803.0 802.7 803.6 DAY-HOUR 14- 6 19- 6 21- 6 2- 6 13- 6 2-18 12-18 25- 6 29- 6 22- 6 4- 6 5- 6 MIN. QFE PRESSURE IN HPA 783.7 785.6 786.9 789.5 790.5 788.5 782.5 785.6 789.6 791.4 791.3 787.6 782.5 DAY-HOUR 30-12 5-15 9- 3 5-21 19-15 21-15 10-15 7-12 3-15 7- 6 30-15 1-12 MEAN QNH PRESSURE IN HPA 1017.0 1017.4 1017.1 1018.4 1020.8 1016.2 1013.6 1015.1 1017.4 1021.5 1021.8 1019.3 1018.0 MAX. QNH PRESSURE IN HPA 1026.0 1024.8 1023.2 1026.5 1029.4 1022.5 1023.7 1020.4 1023.1 1029.3 1028.7 1028.3 1029.4 DAY-HOUR 14- 6 19- 6 21- 6 2- 6 13- 6 2-18 12-18 25- 6 29- 6 22- 6 4- 6 5- 6 MIN. QNH PRESSURE IN HPA 1005.1 1007.4 1009.0 1012.2 1013.4 1011.0 1003.6 1007.4 1012.3 1014.5 1014.4 1009.9 1003.6 DAY-HOUR 30-12 5-15 9- 3 5-21 19-15 21-15 10-15 7-12 3-15 7- 6 30-15 1-12 MEAN QFF PRESSURE IN HPA 1016.9 1019.3 1010.8 1007.7 1007.5 999.4 994.3 995.8 ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1028.5 1030.7 1020.6 1018.2 1019.4 1010.2 1008.6 1002.0 ****** ****** ****** ****** ****** DAY-HOUR 12- 6 8- 3 1- 6 2- 3 14- 3 1-15 11- 3 30- 6 **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA 1004.7 1009.2 1000.5 998.5 996.5 990.4 986.1 986.9 ****** ****** ****** ****** ****** DAY-HOUR 30-12 24-12 9- 0 22- 0 19-18 30-18 9-12 7-12 **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 793.5 792.8 793.2 794.3 796.3 792.8 790.9 792.0 ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 799.7 796.4 796.6 799.4 803.3 797.5 796.0 794.6 ****** ****** ****** ****** ****** DAY 14 8 21 2 14 1 9 24 ** ** ** ** MIN. QFE PRESSURE IN HPA 787.3 786.0 788.0 790.0 791.0 789.2 784.6 788.3 ****** ****** ****** ****** ****** DAY 30 6 9 6 20 21 10 7 ** ** ** ** MEAN QNH PRESSURE IN HPA 1017.1 1016.3 1016.7 1018.1 1020.5 1016.2 1013.9 1015.2 ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1024.7 1020.6 1020.9 1024.3 1029.1 1022.0 1020.2 1018.4 ****** ****** ****** ****** ****** DAY 14 8 21 2 14 1 9 24 ** ** ** ** MIN. QNH PRESSURE IN HPA 1009.5 1007.9 1010.4 1012.8 1014.0 1011.8 1006.2 1010.7 ****** ****** ****** ****** ****** DAY 30 6 9 6 20 21 10 7 ** ** ** ** MEAN QFF PRESSURE IN HPA 1016.2 1017.2 1009.6 1007.2 1007.5 999.5 994.7 995.9 ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1024.5 1027.6 1015.8 1014.5 1016.6 1009.3 1002.0 999.6 ****** ****** ****** ****** ****** DAY 20 8 8 2 24 1 17 30 ** ** ** ** MIN. QFF PRESSURE IN HPA 1007.5 1009.2 1000.5 998.5 998.0 993.4 987.9 991.5 ****** ****** ****** ****** ****** DAY 30 23 9 22 20 27 27 7 ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 793.7 794.1 793.5 794.7 796.9 793.1 791.3 792.6 794.8 797.7 797.5 795.2 794.6 MAX. QFE PRESSURE IN HPA 800.1 798.8 797.1 800.4 803.6 797.2 797.8 795.2 798.2 801.9 801.4 800.2 803.6 DAY 13 19 28 2 14 3 11 25 29 23 5 5 MIN. QFE PRESSURE IN HPA 786.6 786.4 786.9 790.4 791.7 789.5 784.7 788.8 791.4 793.4 792.1 789.6 784.7 DAY 30 6 9 6 20 21 10 7 4 10 30 1 MEAN QNH PRESSURE IN HPA 1017.4 1017.8 1017.0 1018.6 1021.2 1016.7 1014.5 1016.0 1018.7 1022.2 1022.0 1019.1 1018.4 MAX. QNH PRESSURE IN HPA 1025.2 1023.6 1021.5 1025.5 1029.4 1021.6 1022.4 1019.2 1022.8 1027.4 1026.8 1025.3 1029.4 DAY 13 19 28 2 14 3 11 25 29 23 5 5 MIN. QNH PRESSURE IN HPA 1008.7 1008.4 1009.0 1013.3 1014.9 1012.2 1006.3 1011.3 1014.5 1017.0 1015.4 1012.3 1006.3 DAY 30 6 9 6 20 21 10 7 4 10 30 1 MEAN QFF PRESSURE IN HPA 1018.9 1021.6 1012.4 1009.7 1009.7 1001.2 996.8 998.4 1005.7 1014.6 1021.1 1018.4 1010.7 MAX. QFF PRESSURE IN HPA 1028.2 1030.7 1018.5 1018.2 1019.4 1009.0 1008.6 1001.9 1012.2 1021.0 1032.6 1026.2 1032.6 DAY 2 8 1 2 14 2 11 30 29 22 24 26 MIN. QFF PRESSURE IN HPA 1007.8 1012.4 1001.5 1001.3 1001.3 995.3 988.8 993.3 1000.2 1007.7 1011.5 1008.9 988.8 DAY 30 23 9 22 20 29 9 6 4 3 30 9 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 794.8 795.1 794.6 795.6 797.3 793.7 791.7 793.4 795.5 798.1 798.3 795.9 795.3 MAX. QFE PRESSURE IN HPA 800.8 799.8 798.5 801.2 803.6 797.5 797.0 796.2 798.4 803.5 803.0 802.7 803.6 DAY 14 19 21 2 13 2 29 25 29 22 4 5 MIN. QFE PRESSURE IN HPA 787.4 789.2 789.3 791.4 792.5 789.7 784.5 789.1 792.4 791.4 792.8 789.2 784.5 DAY 30 5 9 5 1 21 10 7 4 7 30 1 MEAN QNH PRESSURE IN HPA 1018.7 1019.0 1018.4 1019.7 1021.7 1017.3 1014.9 1016.9 1019.5 1022.7 1023.0 1020.0 1019.3 MAX. QNH PRESSURE IN HPA 1026.0 1024.8 1023.2 1026.5 1029.4 1022.0 1021.4 1020.4 1023.1 1029.3 1028.7 1028.3 1029.4 DAY 14 19 21 2 13 2 29 25 29 22 4 5 MIN. QNH PRESSURE IN HPA 1009.6 1011.8 1012.0 1014.5 1015.9 1012.4 1006.1 1011.7 1015.7 1014.5 1016.2 1011.8 1006.1 DAY 30 5 9 5 1 21 10 7 4 7 30 1 MEAN QFF PRESSURE IN HPA 1019.3 1021.2 1012.3 1008.5 1007.6 999.9 995.0 997.1 ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1028.5 1029.9 1020.6 1016.9 1015.3 1007.9 1002.4 1002.0 ****** ****** ****** ****** ****** DAY 12 8 1 2 13 2 16 30 ** ** ** ** MIN. QFF PRESSURE IN HPA 1008.5 1012.5 1004.3 1000.9 1000.1 994.6 987.8 990.9 ****** ****** ****** ****** ****** DAY 30 24 9 20 20 30 9 7 ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 793.4 794.3 794.2 795.0 796.7 793.2 790.9 792.4 794.3 797.4 797.4 795.3 794.5 MAX. QFE PRESSURE IN HPA 798.8 799.6 797.6 800.0 803.6 797.3 796.4 795.1 797.1 803.1 801.8 801.9 803.6 DAY 13 18 21 2 13 2 16 25 29 22 3 5 MIN. QFE PRESSURE IN HPA 784.5 787.9 789.8 790.6 792.0 789.6 783.9 788.9 791.1 792.6 792.3 788.5 783.9 DAY 30 5 24 20 1 20 9 7 2 15 30 1 MEAN QNH PRESSURE IN HPA 1016.9 1018.1 1017.9 1018.9 1021.0 1016.8 1013.9 1015.8 1018.1 1021.8 1021.9 1019.3 1018.3 MAX. QNH PRESSURE IN HPA 1023.6 1024.6 1022.1 1025.0 1029.4 1021.7 1020.6 1019.0 1021.5 1028.8 1027.2 1027.4 1029.4 DAY 13 18 21 2 13 2 16 25 29 22 3 5 MIN. QNH PRESSURE IN HPA 1006.1 1010.2 1012.6 1013.5 1015.3 1012.3 1005.4 1011.5 1014.2 1016.0 1015.6 1011.0 1005.4 DAY 30 5 24 20 1 20 9 7 2 15 30 1 MEAN QFF PRESSURE IN HPA 1015.7 1018.1 1010.6 1007.2 1006.5 999.2 993.8 995.2 ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1024.9 1027.0 1016.7 1015.6 1015.8 1006.9 1002.6 998.8 ****** ****** ****** ****** ****** DAY 12 7 1 24 13 2 16 25 ** ** ** ** MIN. QFF PRESSURE IN HPA 1004.8 1010.1 1003.0 999.4 1001.0 992.4 986.2 990.1 ****** ****** ****** ****** ****** DAY 30 24 23 20 20 27 9 6 ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 792.3 793.2 792.9 793.8 795.7 792.2 789.7 791.0 792.9 796.3 796.8 794.8 793.5 MAX. QFE PRESSURE IN HPA 798.0 798.1 796.2 798.1 802.5 796.6 795.2 794.0 796.2 801.3 800.6 801.2 802.5 DAY 13 18 8 2 13 2 16 29 29 22 3 5 MIN. QFE PRESSURE IN HPA 783.7 786.5 788.3 789.9 791.6 788.7 782.6 785.6 789.7 792.0 791.8 787.6 782.6 DAY 30 5 9 29 1 27 9 7 3 15 30 1 MEAN QNH PRESSURE IN HPA 1015.6 1016.8 1016.3 1017.5 1019.8 1015.5 1012.5 1014.1 1016.3 1020.5 1021.1 1018.7 1017.1 MAX. QNH PRESSURE IN HPA 1022.6 1022.7 1020.4 1022.7 1028.1 1020.9 1019.2 1017.7 1020.4 1026.6 1025.8 1026.5 1028.1 DAY 13 18 8 2 13 2 16 29 29 22 3 5 MIN. QNH PRESSURE IN HPA 1005.1 1008.5 1010.7 1012.7 1014.8 1011.2 1003.8 1007.4 1012.4 1015.3 1015.0 1009.9 1003.8 DAY 30 5 9 29 1 27 9 7 3 15 30 1 MEAN QFF PRESSURE IN HPA 1014.6 1016.1 1009.1 1006.4 1006.5 998.5 993.0 994.5 ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1021.2 1025.8 1015.1 1012.8 1016.4 1005.1 1002.0 998.3 ****** ****** ****** ****** ****** DAY 2 7 1 3 13 4 16 19 ** ** ** ** MIN. QFF PRESSURE IN HPA 1004.7 1009.2 1002.9 998.8 1000.0 992.2 986.1 986.9 ****** ****** ****** ****** ****** DAY 30 24 9 20 19 27 9 7 ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 792.9 793.6 793.1 794.0 795.8 792.0 789.6 790.6 792.5 796.2 796.8 795.2 793.5 MAX. QFE PRESSURE IN HPA 799.0 799.0 795.6 798.9 802.1 796.5 797.4 793.5 795.1 801.5 800.8 801.7 802.1 DAY 13 18 21 3 13 2 1 29 29 22 4 5 MIN. QFE PRESSURE IN HPA 784.3 785.6 788.8 790.1 790.5 788.5 782.5 785.9 789.6 792.8 791.3 788.1 782.5 DAY 30 5 9 29 19 21 10 7 3 15 30 1 MEAN QNH PRESSURE IN HPA 1016.3 1017.2 1016.6 1017.7 1020.0 1015.3 1012.3 1013.5 1015.9 1020.4 1021.1 1019.2 1017.1 MAX. QNH PRESSURE IN HPA 1023.8 1023.8 1019.7 1023.7 1027.6 1020.8 1021.9 1017.1 1019.0 1026.9 1026.0 1027.1 1027.6 DAY 13 18 21 3 13 2 1 29 29 22 4 5 MIN. QNH PRESSURE IN HPA 1005.8 1007.4 1011.3 1012.9 1013.4 1011.0 1003.6 1007.8 1012.3 1016.2 1014.4 1010.5 1003.6 DAY 30 5 9 29 19 21 10 7 3 15 30 1 MEAN QFF PRESSURE IN HPA 1017.8 1020.6 1011.7 1008.5 1008.3 999.4 994.4 995.8 1002.8 1012.7 1020.1 1018.5 1009.2 MAX. QFF PRESSURE IN HPA 1025.9 1030.2 1017.5 1015.6 1017.0 1010.2 1003.2 1000.2 1007.8 1020.4 1031.3 1025.7 1031.3 DAY 12 7 1 2 13 1 18 18 24 22 24 5 MIN. QFF PRESSURE IN HPA 1004.9 1012.9 1005.7 1001.7 999.8 992.5 988.3 988.7 997.7 1006.6 1010.6 1007.6 988.3 DAY 30 23 9 29 19 27 10 6 9 1 6 9 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 793.4 793.4 793.5 794.7 796.6 792.6 790.4 791.5 ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 799.6 797.3 797.3 799.4 802.5 797.9 798.9 794.5 ****** ****** ****** ****** ****** DAY 13 19 21 2 13 2 12 23 ** ** ** ** MIN. QFE PRESSURE IN HPA 785.1 785.7 788.9 790.0 790.5 788.8 784.8 787.9 ****** ****** ****** ****** ****** DAY 31 5 24 5 19 20 9 2 ** ** ** ** MEAN QNH PRESSURE IN HPA 1017.0 1017.0 1017.1 1018.5 1020.9 1016.0 1013.3 1014.6 ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1024.6 1021.7 1021.7 1024.3 1028.1 1022.5 1023.7 1018.3 ****** ****** ****** ****** ****** DAY 13 19 21 2 13 2 12 23 ** ** ** ** MIN. QNH PRESSURE IN HPA 1006.8 1007.6 1011.5 1012.8 1013.4 1011.3 1006.5 1010.2 ****** ****** ****** ****** ****** DAY 31 5 24 5 19 20 9 2 ** ** ** ** MEAN QFF PRESSURE IN HPA 1017.6 1019.9 1010.9 1007.2 1006.9 998.6 993.6 995.0 ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1027.0 1030.3 1016.3 1014.3 1014.6 1008.4 1006.9 998.8 ****** ****** ****** ****** ****** DAY 12 7 1 2 13 1 12 25 ** ** ** ** MIN. QFF PRESSURE IN HPA 1007.4 1012.6 1003.7 1000.5 996.5 990.4 987.1 989.9 ****** ****** ****** ****** ****** DAY 30 23 24 29 19 30 26 6 ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 793.4 793.5 793.5 794.5 796.8 792.7 790.4 791.8 ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 799.3 796.9 797.0 799.0 803.0 797.3 796.0 794.7 ****** ****** ****** ****** ****** DAY 12 19 21 1 13 1 28 23 ** ** ** ** MIN. QFE PRESSURE IN HPA 787.1 785.8 789.2 789.5 791.3 789.0 785.0 788.0 ****** ****** ****** ****** ****** DAY 31 5 24 5 19 20 9 2 ** ** ** ** MEAN QNH PRESSURE IN HPA 1016.9 1017.0 1017.1 1018.3 1021.1 1016.1 1013.3 1015.1 ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1024.2 1021.3 1021.4 1023.8 1028.7 1021.7 1020.2 1018.6 ****** ****** ****** ****** ****** DAY 12 19 21 1 13 1 28 23 ** ** ** ** MIN. QNH PRESSURE IN HPA 1009.3 1007.7 1011.8 1012.2 1014.4 1011.6 1006.7 1010.4 ****** ****** ****** ****** ****** DAY 31 5 24 5 19 20 9 2 ** ** ** ** MEAN QFF PRESSURE IN HPA 1015.7 1018.0 1009.7 1006.7 1006.6 998.7 993.5 994.7 ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1024.1 1028.2 1015.8 1013.4 1015.0 1006.0 1001.5 998.3 ****** ****** ****** ****** ****** DAY 12 7 7 16 13 2 16 25 ** ** ** ** MIN. QFF PRESSURE IN HPA 1008.1 1009.2 1003.6 999.4 998.1 992.5 988.7 989.9 ****** ****** ****** ****** ****** DAY 29 22 24 21 19 30 26 6 ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -1.6 -1.0 6.9 14.5 16.8 24.2 26.9 ***** 23.6 16.4 7.7 0.7 ***** MINIMUN AIR TEMPERATURE (C) -9.7 -7.9 -0.8 4.4 7.1 10.9 13.2 ***** 9.0 3.1 -2.2 -7.3 ***** DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 0 **** 0 0 0 0 **** DAYS WITH MINIMUM TEMP. <=-4 27 24 11 2 0 0 0 **** 0 0 11 25 **** DAYS WITH FREEZING MIN.<= 0 31 28 18 6 0 0 0 **** 0 6 23 28 **** TEMPERATURE RECORDS LOWEST(C) -27.0 -16.0 -11.0 -4.0 2.0 6.0 8.0 ***** 3.0 -1.0 -10.0 -17.0 ***** DAY 26 11 9 1 3 2 10 ** 29 16 26 15 MAXIMUM AIR TEMPERATURE (C) 4.2 4.0 12.0 22.0 24.0 32.3 35.2 ***** 31.5 25.0 13.9 7.5 ***** DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 28 31 **** 21 1 0 0 **** DAYS WITH MAXIMUM TEMP. <= 0 7 3 0 0 0 0 0 **** 0 0 0 5 **** TEMPERATURE RECORDS HIGHEST(C) 11.0 9.0 19.0 26.0 31.0 37.0 37.0 ***** 37.0 30.0 20.0 14.0 ***** DAY 9 23 15 21 27 26 2 ** 1 10 10 21 DIF. BETWEEN (MAX.-MIN.) (C) 13.9 11.9 12.8 17.6 16.9 21.4 22.0 ***** 22.5 21.9 16.1 14.8 ***** MEAN DAILY TEMP. (MDT) (C) -2.8 -1.9 5.6 13.2 15.5 21.6 24.2 ***** 20.2 14.1 5.8 0.1 ***** COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.0 36.0 100.5 ****** 29.0 0.0 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C) 644.0 558.5 384.5 144.0 85.5 2.0 0.0 ****** 12.0 121.5 365.5 503.5 ****** DEWPOINT (MEAN C) -6.0 -3.8 -0.9 ***** ***** 2.5 ***** ***** ***** ***** -3.6 -4.6 ***** MIXING RATIO (G/KG) 3.49 3.88 4.67 ****** ****** 5.88 ****** ****** ****** ****** 3.84 3.64 ****** VAPOUR PRESSURE (HPA) 4.43 4.89 5.90 ****** ****** 7.43 ****** ****** ****** ****** 4.88 4.63 ****** SATURATION DEF. (HPA) 1.66 1.12 4.14 ****** ****** 25.33 ****** ****** ****** ****** 6.62 2.47 ****** RELATIVE HUMIDITY (MEAN %) 74 82 66 *** *** 29 *** *** *** *** 50 71 *** RELATIVE HUMIDITY (MAX. %) 90 92 84 77 64 61 48 *** 42 55 78 86 *** RELATIVE HUMIDITY (MIN. %) 55 66 47 46 43 14 33 *** 35 45 30 52 *** RELATIVE HUMIDITY (MEAN% 03UTC) 74 78 80 76 62 60 49 *** 42 54 72 77 *** RELATIVE HUMIDITY (MEAN% 09UTC) 73 82 59 *** *** 18 *** *** *** *** 38 64 *** RELATIVE HUMIDITY (MEAN% 15UTC) 77 82 63 55 56 23 *** *** *** *** 51 70 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 38.0 61.0 73.0 21.0 5.0 0.0 0.0 ****** 0.0 0.0 0.0 14.0 ****** DAYS WITH PRECIPITATION >=10 2 1 2 0 0 0 0 **** 0 0 0 1 **** DAYS WITH PRECIPITATION >= 5 3 4 2 2 1 0 0 **** 0 0 0 1 **** DAYS WITH PRECIPITATION >= 1 4 6 6 4 1 0 0 **** 0 0 0 2 **** DAYS WITH PRECIPITATION 4 6 6 4 1 0 0 **** 0 0 0 2 **** GREATEST DAILY PRECIPITATION 19.0 28.0 40.0 9.0 5.0 0.0 0.0 ****** 0.0 0.0 0.0 10.0 ****** DAY 22 8 26 4 2 ** ** ** ** ** ** 1 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 **** 0 0 0 0 **** DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 **** 0 0 0 2 **** DAYS WITH DUST 0 0 0 0 0 0 0 **** 0 0 0 0 **** WIND DIRECTION (PREVAILING) *** *** *** *** *** *** *** *** *** *** 180 180 *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** **** **** **** **** **** **** 6.6 6.8 **** PREVAILING WIND PERCENT ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** 11.3 2.8 ***** CALMS PERCENT OF WIND ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** 73.3 95.1 ***** NO. OF WIND OBSERVATION 0 0 0 0 5 60 5 **** 70 76 150 143 509 VECTOR WIND DIRECTION (MEAN) *** *** *** *** *** *** *** *** *** *** 201 197 *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** **** **** **** **** **** **** 1.6 0.2 **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** 80.0 66.7 ***** WIND SPEED (MEAN KNOTS) **** **** **** **** **** **** **** **** **** **** 2.0 0.3 **** FASTEST WIND DIRECTION *** *** *** *** *** *** *** *** *** *** 210 180 *** FASTEST WIND SPEED (KNOTS) *** *** *** *** *** *** *** *** *** *** 25 10 *** DAY ** ** ** ** ** ** ** ** ** ** 19 22 DAYS WITH SKY CLEAR (0-2)/8 0 0 0 0 1 10 0 **** 14 17 15 19 **** DAYS WITH P.CLOUDY (3-6)/8 0 0 0 0 0 2 1 **** 0 1 11 6 **** DAYS WITH CLOUDY (7-8)/8 0 0 0 0 0 0 0 **** 0 0 4 4 **** DAYS WITH VISIBILITY =< 2 KM 0 0 0 0 0 0 0 **** 0 2 0 3 **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 794.6 789.6 793.1 795.0 793.3 792.7 791.2 ****** 793.4 797.5 795.8 797.7 ****** MAX. QFE PRESSURE IN HPA 800.2 798.2 798.8 805.0 797.7 798.5 795.0 ****** 799.6 809.9 803.6 809.0 ****** DAY-HOUR 29- 3 3- 3 16- 6 15- 6 23-12 27-15 19- 3 **-** 19- 3 26- 9 10- 6 17- 6 MIN. QFE PRESSURE IN HPA 786.4 779.8 782.7 787.9 789.4 785.3 784.9 ****** 788.8 789.2 786.7 791.2 ****** DAY-HOUR 23- 3 20-12 27- 3 6-12 1-15 28- 9 2-12 **-** 8-15 30-12 25-15 1- 3 MEAN QNH PRESSURE IN HPA 1018.4 1012.3 1016.6 1019.0 1016.8 1016.1 1014.3 ****** 1016.9 1022.0 1019.9 1022.2 ****** MAX. QNH PRESSURE IN HPA 1025.3 1022.8 1023.6 1031.2 1022.2 1023.2 1018.9 ****** 1024.6 1037.1 1029.4 1036.0 ****** DAY-HOUR 29- 3 3- 3 16- 6 15- 6 23-12 27-15 19- 3 **-** 19- 3 26- 9 10- 6 17- 6 MIN. QNH PRESSURE IN HPA 1008.4 1000.3 1003.9 1010.2 1012.1 1007.1 1006.6 ****** 1011.3 1011.8 1008.8 1014.3 ****** DAY-HOUR 23- 3 20-12 27- 3 6-12 1-15 28- 9 2-12 **-** 8-15 30-12 25-15 1- 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 794.8 789.8 792.7 795.0 793.2 792.5 791.2 ****** 794.0 797.8 796.2 798.0 ****** MAX. QFE PRESSURE IN HPA 800.2 798.2 798.5 800.0 796.2 796.7 795.0 ****** 799.6 804.3 801.9 803.8 ****** DAY 29 3 16 15 23 21 19 ** 19 26 10 17 MIN. QFE PRESSURE IN HPA 786.4 782.7 782.7 788.8 789.5 786.6 788.7 ****** 791.0 792.5 791.0 791.2 ****** DAY 23 20 27 6 5 28 4 ** 8 30 25 1 MEAN QNH PRESSURE IN HPA 1018.6 1012.6 1016.1 1018.9 1016.7 1015.9 1014.3 ****** 1017.7 1022.4 1020.4 1022.6 ****** MAX. QNH PRESSURE IN HPA 1025.3 1022.8 1023.2 1025.0 1020.4 1021.0 1018.9 ****** 1024.6 1030.3 1027.4 1029.7 ****** DAY 29 3 16 15 23 21 19 ** 19 26 10 17 MIN. QNH PRESSURE IN HPA 1008.4 1003.9 1003.9 1011.3 1012.2 1008.7 1011.2 ****** 1014.0 1015.9 1014.0 1014.3 ****** DAY 23 20 27 6 5 28 4 ** 8 30 25 1 MEAN QFF PRESSURE IN HPA 1024.7 1016.9 1013.9 1012.0 1008.8 1000.9 ****** ****** ****** ****** 1018.6 1026.5 ****** MAX. QFF PRESSURE IN HPA 1044.2 1026.9 1024.2 1019.8 1013.7 1004.4 ****** ****** ****** ****** 1027.2 1037.9 ****** DAY 26 11 9 9 11 13 ** ** ** ** 10 15 MIN. QFF PRESSURE IN HPA 1009.6 1007.3 1002.8 1004.7 1003.6 994.1 ****** ****** ****** ****** 1009.8 1016.2 ****** DAY 21 20 27 6 30 28 ** ** ** ** 2 1 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 795.4 789.9 793.5 795.4 793.4 792.8 791.7 ****** 794.1 798.9 796.9 798.7 ****** MAX. QFE PRESSURE IN HPA 799.7 797.3 798.8 805.0 796.3 796.8 795.0 ****** 799.1 805.1 803.6 809.0 ****** DAY 29 3 16 15 20 21 22 ** 30 25 10 17 MIN. QFE PRESSURE IN HPA 786.6 782.2 785.2 788.5 790.0 786.4 788.4 ****** 791.4 793.2 791.2 793.3 ****** DAY 23 20 1 6 30 28 3 ** 6 30 25 12 MEAN QNH PRESSURE IN HPA 1019.5 1012.7 1017.1 1019.5 1017.0 1016.2 1014.9 ****** 1017.8 1023.6 1021.3 1023.4 ****** MAX. QNH PRESSURE IN HPA 1024.7 1021.7 1023.6 1031.2 1020.5 1021.1 1018.9 ****** 1023.9 1031.3 1029.4 1036.0 ****** DAY 29 3 16 15 20 21 22 ** 30 25 10 17 MIN. QNH PRESSURE IN HPA 1008.7 1003.3 1006.9 1011.0 1012.8 1008.4 1010.9 ****** 1014.5 1016.7 1014.3 1016.8 ****** DAY 23 20 1 6 30 28 3 ** 6 30 25 12 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 794.6 789.9 793.3 794.9 793.4 792.8 791.1 ****** 793.4 797.9 796.0 797.8 ****** MAX. QFE PRESSURE IN HPA 799.7 797.7 797.9 800.8 796.9 796.5 794.0 ****** 798.5 809.9 800.5 802.3 ****** DAY 29 3 21 28 7 17 9 ** 30 26 9 17 MIN. QFE PRESSURE IN HPA 787.2 779.9 785.0 788.2 790.0 785.3 788.0 ****** 790.2 792.2 790.9 792.5 ****** DAY 23 20 1 6 9 28 2 ** 27 30 25 12 MEAN QNH PRESSURE IN HPA 1018.5 1012.7 1016.9 1018.9 1017.0 1016.3 1014.2 ****** 1016.9 1022.5 1020.1 1022.3 ****** MAX. QNH PRESSURE IN HPA 1024.7 1022.2 1022.5 1026.0 1021.3 1020.8 1017.7 ****** 1023.2 1037.1 1025.7 1027.9 ****** DAY 29 3 21 28 7 17 9 ** 30 26 9 17 MIN. QNH PRESSURE IN HPA 1009.4 1000.5 1006.7 1010.6 1012.8 1007.1 1010.4 ****** 1013.1 1015.5 1013.9 1015.9 ****** DAY 23 20 1 6 9 28 2 ** 27 30 25 12 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 794.1 789.1 792.9 794.9 793.3 792.6 790.9 ****** 792.7 796.3 794.9 796.9 ****** MAX. QFE PRESSURE IN HPA 799.5 795.0 797.6 800.5 797.7 798.2 793.8 ****** 796.6 802.2 799.4 801.8 ****** DAY 30 1 21 29 23 14 8 ** 30 25 3 17 MIN. QFE PRESSURE IN HPA 786.7 779.8 785.6 787.9 789.5 786.0 784.9 ****** 789.2 789.2 789.5 791.9 ****** DAY 23 20 1 6 1 28 2 ** 8 30 25 12 MEAN QNH PRESSURE IN HPA 1017.9 1011.7 1016.4 1018.8 1016.8 1016.0 1013.9 ****** 1016.1 1020.5 1018.8 1021.3 ****** MAX. QNH PRESSURE IN HPA 1024.4 1018.9 1022.1 1025.7 1022.2 1022.8 1017.5 ****** 1020.9 1027.7 1024.3 1027.2 ****** DAY 30 1 21 29 23 14 8 ** 30 25 3 17 MIN. QNH PRESSURE IN HPA 1008.8 1000.3 1007.4 1010.2 1012.2 1007.9 1006.6 ****** 1011.8 1011.8 1012.2 1015.1 ****** DAY 23 20 1 6 1 28 2 ** 8 30 25 12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 794.2 789.4 793.4 795.0 793.2 792.8 791.2 ****** 792.7 796.7 794.9 797.1 ****** MAX. QFE PRESSURE IN HPA 799.9 795.2 797.7 800.3 797.1 798.5 794.6 ****** 796.5 803.0 799.2 801.9 ****** DAY 30 1 16 29 23 27 2 ** 30 25 10 16 MIN. QFE PRESSURE IN HPA 787.3 781.0 785.9 789.2 789.4 786.5 787.9 ****** 788.8 790.2 786.7 792.0 ****** DAY 22 20 1 6 1 28 23 ** 8 30 25 12 MEAN QNH PRESSURE IN HPA 1017.9 1012.1 1016.9 1019.0 1016.7 1016.3 1014.2 ****** 1016.1 1020.9 1018.9 1021.5 ****** MAX. QNH PRESSURE IN HPA 1024.9 1019.2 1022.2 1025.4 1021.5 1023.2 1018.4 ****** 1020.8 1028.7 1024.1 1027.4 ****** DAY 30 1 16 29 23 27 2 ** 30 25 10 16 MIN. QNH PRESSURE IN HPA 1009.5 1001.8 1007.8 1011.8 1012.1 1008.5 1010.2 ****** 1011.3 1013.1 1008.8 1015.3 ****** DAY 22 20 1 6 1 28 23 ** 8 30 25 12 MEAN QFF PRESSURE IN HPA 1024.0 1016.4 1014.8 1011.5 1007.9 1001.3 ****** ****** ****** ****** 1016.8 1025.2 ****** MAX. QFF PRESSURE IN HPA 1041.5 1026.0 1022.4 1018.4 1013.1 1007.3 ****** ****** ****** ****** 1023.0 1036.7 ****** DAY 25 10 9 8 11 27 ** ** ** ** 21 15 MIN. QFF PRESSURE IN HPA 1010.3 1003.1 1006.6 1005.8 998.6 993.7 ****** ****** ****** ****** 1006.8 1015.4 ****** DAY 22 25 22 19 1 28 ** ** ** ** 1 12 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 SHAHRE KORD (40798) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 17 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 2048.9 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.9 6.3 4.2 11.8 20.3 25.9 25.6 25.2 20.6 13.1 7.2 0.9 13.8 MINIMUN AIR TEMPERATURE (C) -2.8 -0.6 -3.2 3.9 7.8 10.6 15.7 13.9 9.6 2.1 -0.4 -5.6 4.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH MINIMUM TEMP. <=-4 17 10 14 0 0 0 0 0 0 0 9 24 74 DAYS WITH FREEZING MIN.<= 0 21 19 22 7 0 0 0 0 0 9 17 29 124 TEMPERATURE RECORDS LOWEST(C) -11.0 -7.0 -19.0 -3.0 4.0 6.0 10.0 10.0 5.0 0.0 -6.0 -11.0 -19.0 DAY 28 1 15 3 4 2 14 26 30 23 23 26 MAXIMUM AIR TEMPERATURE (C) 10.4 11.6 8.9 17.2 26.6 33.4 34.8 35.5 31.2 24.4 15.0 8.0 21.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 7 30 31 31 28 1 0 0 128 DAYS WITH MAXIMUM TEMP. <= 0 0 0 3 0 0 0 0 0 0 0 0 0 3 TEMPERATURE RECORDS HIGHEST(C) 16.0 17.0 17.0 24.0 33.0 38.0 39.0 38.0 34.0 30.0 22.0 15.0 39.0 DAY 20 21 31 7 29 24 7 9 1 1 1 2 DIF. BETWEEN (MAX.-MIN.) (C) 13.2 12.2 12.1 13.3 18.8 22.8 19.1 21.6 21.6 22.3 15.4 13.6 17.1 MEAN DAILY TEMP. (MDT) (C) 3.8 5.5 2.8 10.5 17.2 22.0 25.2 24.7 20.4 13.2 7.3 1.2 12.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.5 46.0 131.0 114.5 17.5 0.0 0.0 0.0 309.5 HEATING DEG. DAYS(BASE 18 0C) 439.5 362.5 470.5 224.5 42.0 0.0 0.0 0.0 2.5 147.5 320.0 521.0 2530.0 DEWPOINT (MEAN C) -3.2 -3.4 -3.2 2.2 3.5 5.2 ***** ***** ***** ***** ***** ***** ***** MIXING RATIO (G/KG) 3.90 3.87 4.00 5.84 6.44 7.23 ****** ****** ****** ****** ****** ****** ****** VAPOUR PRESSURE (HPA) 4.95 4.92 5.05 7.35 8.13 9.10 ****** ****** ****** ****** ****** ****** ****** SATURATION DEF. (HPA) 3.72 5.16 3.80 7.27 17.33 26.94 ****** ****** ****** ****** ****** ****** ****** RELATIVE HUMIDITY (MEAN %) 64 55 62 56 36 30 *** *** *** *** *** *** *** RELATIVE HUMIDITY (MAX. %) 85 80 80 79 58 54 *** *** *** *** *** *** *** RELATIVE HUMIDITY (MIN. %) 42 33 45 39 23 18 *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 03UTC) 78 78 74 76 56 54 *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) 51 44 54 47 27 22 *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 15UTC) 64 58 64 54 32 24 *** *** *** *** *** *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 67.0 24.0 32.5 42.0 2.0 0.0 0.0 0.0 0.0 0.0 6.0 13.0 186.5 DAYS WITH PRECIPITATION >=10 1 2 0 1 0 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 5 3 2 3 5 0 0 0 0 0 0 0 1 14 DAYS WITH PRECIPITATION >= 1 6 3 7 6 2 0 0 0 0 0 3 3 30 DAYS WITH PRECIPITATION 6 3 9 6 2 0 0 0 0 0 4 4 34 GREATEST DAILY PRECIPITATION 48.0 12.0 8.0 18.0 1.0 0.0 0.0 0.0 0.0 0.0 3.0 6.0 48.0 DAY 3 5 2 28 9