STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1976 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** 18.7 25.0 29.3 25.2 21.9 14.8 6.5 3.4 ***** MINIMUN AIR TEMPERATURE (C) ***** ***** ***** ***** 9.1 14.1 19.1 13.2 9.9 5.2 -0.8 -2.4 ***** DAYS WITH MINIMUM TEMP. >=21 **** **** **** **** 0 0 6 0 0 0 0 0 **** DAYS WITH MINIMUM TEMP. <=-4 **** **** **** **** 0 0 0 0 0 0 8 13 **** DAYS WITH FREEZING MIN.<= 0 **** **** **** **** 0 0 0 0 0 0 17 24 **** TEMPERATURE RECORDS LOWEST(C) ***** ***** ***** ***** 5.0 10.0 13.0 8.0 8.0 1.0 -6.0 -8.0 ***** DAY ** ** ** ** 3 11 1 25 5 24 22 1 MAXIMUM AIR TEMPERATURE (C) ***** ***** ***** ***** 27.5 34.1 38.0 34.8 32.3 24.3 15.0 10.6 ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** **** **** 8 29 31 31 27 1 0 0 **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** **** **** 0 0 0 0 0 0 0 0 **** TEMPERATURE RECORDS HIGHEST(C)***** ***** ***** ***** 32.0 37.0 40.0 39.0 36.0 30.0 20.0 17.0 ***** DAY ** ** ** ** 20 16 8 1 6 1 5 15 DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** ***** ***** 18.4 20.0 18.9 21.6 22.4 19.1 15.8 13.0 ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** ***** ***** 18.3 24.1 28.5 24.0 21.1 14.8 7.1 4.1 ***** COOLING DEG. DAYS(BASE 21 0C)****** ****** ****** ****** 5.0 94.5 234.0 95.5 20.5 0.0 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C)****** ****** ****** ****** 24.0 0.0 0.0 0.0 0.0 100.5 326.0 402.5 ****** DEWPOINT (MEAN C) ***** ***** ***** ***** 2.7 0.5 2.7 -2.3 -3.9 -1.1 -3.1 -2.5 ***** MIXING RATIO (G/KG) ****** ****** ****** ****** 6.03 4.92 5.96 3.99 3.60 4.44 3.85 3.92 ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** 8.09 6.60 7.94 5.36 4.86 6.00 5.23 5.31 ****** SATURATION DEF. (HPA) ****** ****** ****** ****** 15.02 27.63 35.51 29.76 24.04 12.39 5.16 3.00 ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** 41 24 21 18 21 40 55 70 *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** 63 42 35 34 42 61 80 86 *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** 24 12 12 9 9 22 31 50 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** 59 38 31 30 38 55 78 84 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** 29 14 15 11 13 28 39 58 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** 29 15 15 10 12 30 43 62 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. ****** ****** ****** ****** 13.1 3.0 0.4 0.0 0.0 24.9 4.3 76.1 ****** DAYS WITH PRECIPITATION >=10 **** **** **** **** 0 0 0 0 0 1 0 2 **** DAYS WITH PRECIPITATION >= 5 **** **** **** **** 1 0 0 0 0 2 0 3 **** DAYS WITH PRECIPITATION >= 1 **** **** **** **** 3 1 0 0 0 3 1 7 **** DAYS WITH PRECIPITATION **** **** **** **** 4 2 2 0 0 6 3 10 **** GREATEST DAILY PRECIPITATION ****** ****** ****** ****** 7.0 3.0 0.4 0.0 0.0 14.0 4.0 47.0 ****** DAY ** ** ** ** 14 6 23 ** ** 30 29 26 DAY WITH THUNDER STORM **** **** **** **** 1 3 0 0 0 5 0 2 **** DAYS WITH SNOW OR SLEET **** **** **** **** 0 0 0 0 0 0 0 3 **** DAYS WITH DUST **** **** **** **** 15 4 6 2 6 9 2 1 **** WIND DIRECTION (PREVAILING) *** *** *** *** 225 270 270 270 270 270 270 270 *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** 11.3 8.3 6.9 5.6 6.1 6.5 5.6 5.3 **** PREVAILING WIND PERCENT ***** ***** ***** ***** 25.0 30.0 18.0 19.8 30.0 21.0 14.6 20.3 ***** CALMS PERCENT OF WIND ***** ***** ***** ***** 13.7 17.5 17.1 19.8 12.9 15.3 37.5 33.3 ***** NO. OF WIND OBSERVATION **** **** **** **** 248 240 245 248 240 248 240 237 1946 VECTOR WIND DIRECTION (MEAN) *** *** *** *** 253 265 204 354 262 253 206 204 *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** 4.2 2.5 1.7 0.5 1.5 2.4 0.7 0.9 **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** 52.5 36.8 29.8 9.1 25.9 41.4 20.0 23.7 ***** WIND SPEED (MEAN KNOTS) **** **** **** **** 8.0 6.8 5.7 5.5 5.8 5.8 3.5 3.8 **** FASTEST WIND DIRECTION *** *** *** *** 300 270 80 170 80 210 300 210 *** FASTEST WIND SPEED (KNOTS) *** *** *** *** 40 50 30 40 60 30 20 35 *** DAY ** ** ** ** 14 6 25 5 12 29 29 10 DAYS WITH SKY CLEAR (0-2)/8 **** **** **** **** 16 28 25 28 29 18 16 12 **** DAYS WITH P.CLOUDY (3-6)/8 **** **** **** **** 12 2 5 3 1 11 12 9 **** DAYS WITH CLOUDY (7-8)/8 **** **** **** **** 3 0 1 0 0 2 2 10 **** DAYS WITH VISIBILITY =< 2 KM **** **** **** **** 0 2 0 0 2 0 2 8 **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** 314.7 379.9 327.4 322.6 320.1 246.7 221.8 166.9 ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1976 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 844.5 842.6 838.2 842.3 844.9 847.1 850.5 848.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 849.8 848.5 849.2 849.4 849.9 854.6 856.5 856.8 ****** DAY-HOUR **-** **-** **-** **-** 13- 6 14-12 28-12 4-18 2- 3 31-21 1- 6 14- 6 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 838.5 834.9 831.8 838.2 840.3 841.3 839.2 839.1 ****** DAY-HOUR **-** **-** **-** **-** 7-12 5-15 20-15 30-15 2-15 18-12 28-21 10-15 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1016.9 1014.7 1009.6 1014.3 1017.4 1020.0 1023.8 1021.4 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1023.1 1021.6 1022.4 1022.6 1023.2 1028.7 1030.9 1031.2 ****** DAY-HOUR **-** **-** **-** **-** 13- 6 14-12 28-12 4-18 2- 3 31-21 1- 6 14- 6 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1009.9 1005.8 1002.2 1009.6 1012.0 1013.2 1010.8 1010.6 ****** DAY-HOUR **-** **-** **-** **-** 7-12 5-15 20-15 30-15 2-15 18-12 28-21 10-15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1007.8 1001.9 994.2 1001.4 1006.6 1013.3 1022.8 1022.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1015.7 1010.0 1008.5 1009.6 1015.0 1027.9 1032.6 1034.5 ****** DAY-HOUR **-** **-** **-** **-** 14-15 14-12 28-12 14- 0 30- 3 31-18 14- 3 14- 3 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1001.0 992.8 986.1 993.5 1000.5 1003.8 1006.8 1005.8 ****** DAY-HOUR **-** **-** **-** **-** 7-12 5-18 20-15 1-12 2-15 18-12 28-21 10-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 844.7 843.0 838.7 842.7 845.0 847.3 850.7 848.5 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 849.3 846.6 841.9 849.1 847.9 851.6 854.9 856.3 ****** DAY ** ** ** ** 13 27 24 14 30 6 14 14 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 841.5 839.0 833.9 839.9 841.3 843.4 839.3 840.2 ****** DAY ** ** ** ** 7 6 20 31 1 9 29 11 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1017.2 1015.2 1010.2 1014.8 1017.5 1020.1 1024.1 1021.6 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1022.5 1019.4 1013.9 1022.3 1020.9 1025.2 1029.0 1030.6 ****** DAY ** ** ** ** 13 27 24 14 30 6 14 14 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1013.4 1010.5 1004.6 1011.6 1013.2 1015.6 1010.9 1011.9 ****** DAY ** ** ** ** 7 6 20 31 1 9 29 11 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1008.2 1002.6 995.0 1001.9 1006.2 1012.7 1022.0 1021.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1012.5 1005.6 1000.0 1009.6 1010.9 1018.7 1028.9 1030.7 ****** DAY ** ** ** ** 16 9 24 14 30 31 15 14 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1001.9 996.6 988.7 995.5 1001.2 1006.6 1008.1 1007.0 ****** DAY ** ** ** ** 28 6 21 1 1 18 29 11 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 845.3 843.6 839.1 843.3 846.0 847.6 850.9 848.5 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 849.6 846.2 842.4 848.4 849.9 851.6 856.0 856.4 ****** DAY ** ** ** ** 13 26 23 4 2 6 14 14 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 842.6 838.8 834.2 840.6 842.6 843.7 839.4 841.0 ****** DAY ** ** ** ** 7 6 20 31 19 18 29 11 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1017.8 1015.8 1010.6 1015.5 1018.7 1020.6 1024.3 1021.6 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1022.8 1018.9 1014.5 1021.5 1023.2 1025.2 1030.3 1030.8 ****** DAY ** ** ** ** 13 26 23 4 2 6 14 14 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1014.7 1010.3 1004.9 1012.4 1014.7 1016.0 1011.0 1012.8 ****** DAY ** ** ** ** 7 6 20 31 19 18 29 11 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1009.3 1003.8 995.8 1003.7 1009.2 1015.5 1024.6 1023.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1015.6 1007.2 1000.5 1008.8 1015.0 1019.5 1032.6 1034.5 ****** DAY ** ** ** ** 15 9 23 27 30 14 14 14 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1004.7 997.5 989.0 997.8 1004.5 1010.4 1010.0 1010.5 ****** DAY ** ** ** ** 28 6 20 1 3 18 29 11 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1976 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 845.8 844.2 839.5 843.8 846.6 848.8 852.0 849.9 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 849.8 846.7 842.6 846.1 849.9 852.6 856.5 856.8 ****** DAY ** ** ** ** 13 26 6 27 21 6 1 14 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 841.5 839.2 834.7 841.5 843.6 845.2 841.2 842.6 ****** DAY ** ** ** ** 7 6 20 1 2 18 29 31 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1018.5 1016.5 1011.1 1016.0 1019.4 1021.9 1025.6 1023.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1023.1 1019.5 1014.7 1018.8 1023.2 1026.3 1030.9 1031.2 ****** DAY ** ** ** ** 13 26 6 27 21 6 1 14 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1013.4 1010.8 1005.5 1013.4 1015.9 1017.7 1013.1 1014.7 ****** DAY ** ** ** ** 7 6 20 1 2 18 29 31 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1009.1 1003.3 995.6 1002.6 1008.6 1015.4 1025.4 1024.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1014.7 1006.6 999.1 1007.4 1014.1 1023.2 1032.1 1034.4 ****** DAY ** ** ** ** 15 3 23 27 30 31 14 14 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1003.6 997.8 989.5 996.7 1003.8 1010.0 1011.4 1012.6 ****** DAY ** ** ** ** 7 6 20 1 2 9 29 11 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 844.8 843.1 838.6 842.6 845.6 847.2 850.8 848.7 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 848.5 846.3 841.5 845.1 848.9 852.3 855.7 855.7 ****** DAY ** ** ** ** 14 26 6 27 26 31 14 14 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 839.8 838.1 834.2 840.4 842.2 842.7 841.1 842.0 ****** DAY ** ** ** ** 7 6 20 1 18 18 29 31 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1017.3 1015.3 1010.1 1014.7 1018.2 1020.1 1024.3 1021.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1021.6 1019.0 1013.4 1017.6 1022.0 1026.0 1029.9 1029.9 ****** DAY ** ** ** ** 14 26 6 27 26 31 14 14 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1011.5 1009.5 1004.9 1012.2 1014.2 1014.8 1013.0 1014.0 ****** DAY ** ** ** ** 7 6 20 1 18 18 29 31 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1007.7 1002.2 994.0 1001.2 1006.2 1012.4 1022.2 1022.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1013.9 1005.7 997.5 1006.0 1012.0 1023.2 1029.5 1030.2 ****** DAY ** ** ** ** 14 21 6 27 30 31 14 13 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1001.6 996.5 989.2 995.6 1001.0 1005.5 1010.4 1012.1 ****** DAY ** ** ** ** 27 6 20 1 1 18 29 10 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 843.4 841.6 837.2 841.0 843.8 845.6 849.2 847.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 848.1 848.5 849.2 844.3 847.3 851.1 854.9 853.7 ****** DAY ** ** ** ** 14 14 28 19 25 31 1 13 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 838.5 836.3 832.9 838.4 840.7 841.3 840.2 839.2 ****** DAY ** ** ** ** 7 6 20 1 17 18 28 10 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1015.6 1013.6 1008.5 1012.9 1016.1 1018.2 1022.4 1020.1 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1021.1 1021.6 1022.4 1016.7 1020.2 1024.6 1029.0 1027.6 ****** DAY ** ** ** ** 14 14 28 19 25 31 1 13 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1009.9 1007.4 1003.4 1009.8 1012.5 1013.2 1011.9 1010.8 ****** DAY ** ** ** ** 7 6 20 1 17 18 28 10 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1006.5 1000.9 993.1 999.9 1004.8 1010.9 1020.2 1019.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1015.5 1010.0 1008.5 1005.1 1010.2 1021.4 1027.5 1028.3 ****** DAY ** ** ** ** 15 14 28 19 30 31 2 13 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1001.0 994.5 987.6 993.5 1000.8 1003.8 1009.0 1007.9 ****** DAY ** ** ** ** 7 6 14 1 2 18 28 10 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1976 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 843.0 840.5 836.4 840.5 843.2 845.8 849.6 847.8 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 849.3 843.1 839.3 842.7 846.5 852.0 854.5 854.7 ****** DAY ** ** ** ** 14 12 19 8 25 31 1 13 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 838.9 834.9 831.8 838.2 840.3 842.0 840.6 839.1 ****** DAY ** ** ** ** 27 5 20 30 2 18 28 10 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1015.2 1012.2 1007.6 1012.3 1015.5 1018.4 1022.8 1020.7 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1022.5 1015.3 1010.9 1014.8 1019.2 1025.6 1028.5 1028.8 ****** DAY ** ** ** ** 14 12 19 8 25 31 1 13 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1010.4 1005.8 1002.2 1009.6 1012.0 1014.0 1012.4 1010.6 ****** DAY ** ** ** ** 27 5 20 30 2 18 28 10 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1006.5 1000.1 992.6 1000.5 1006.1 1013.3 1023.0 1022.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1015.7 1004.4 996.4 1005.1 1011.8 1024.1 1030.7 1032.4 ****** DAY ** ** ** ** 14 8 28 26 30 31 14 13 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1001.5 993.4 986.1 995.0 1000.5 1008.6 1011.0 1008.9 ****** DAY ** ** ** ** 20 5 20 1 2 3 28 10 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 844.3 842.0 837.7 842.0 844.5 847.3 850.4 848.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 848.2 845.9 840.4 849.4 848.0 854.3 855.4 855.7 ****** DAY ** ** ** ** 14 8 22 4 30 31 1 13 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 840.8 835.8 832.9 838.7 841.1 844.0 840.5 839.2 ****** DAY ** ** ** ** 27 5 20 30 2 8 28 10 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1016.7 1014.0 1009.0 1014.0 1016.9 1020.1 1023.8 1021.5 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1021.2 1018.5 1012.2 1022.6 1021.0 1028.3 1029.6 1029.9 ****** DAY ** ** ** ** 14 8 22 4 30 31 1 13 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1012.6 1006.8 1003.4 1010.2 1013.0 1016.3 1012.3 1010.8 ****** DAY ** ** ** ** 27 5 20 30 2 8 28 10 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1007.3 1000.9 993.5 1000.7 1006.1 1013.8 1023.5 1023.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1013.9 1007.0 998.1 1007.2 1012.1 1027.9 1030.1 1033.4 ****** DAY ** ** ** ** 14 8 22 4 30 31 13 13 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1001.8 992.8 987.0 996.4 1001.2 1008.3 1009.7 1009.2 ****** DAY ** ** ** ** 27 5 20 1 2 17 28 10 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 844.7 842.6 838.4 842.3 845.0 847.5 850.2 848.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 848.3 845.9 841.5 844.5 848.8 854.6 855.1 855.9 ****** DAY ** ** ** ** 12 26 23 26 30 31 13 13 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 841.9 838.3 833.4 839.3 841.8 843.4 839.2 839.1 ****** DAY ** ** ** ** 27 5 20 30 17 8 28 10 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1017.2 1014.7 1009.8 1014.4 1017.5 1020.4 1023.6 1021.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1021.3 1018.5 1013.4 1016.9 1021.9 1028.7 1029.2 1030.2 ****** DAY ** ** ** ** 12 26 23 26 30 31 13 13 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1013.9 1009.7 1004.0 1010.9 1013.8 1015.6 1010.8 1010.6 ****** DAY ** ** ** ** 27 5 20 30 17 8 28 10 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1007.6 1001.5 993.8 1000.9 1005.7 1012.8 1021.6 1021.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1013.8 1006.0 998.4 1005.5 1013.0 1027.1 1028.9 1030.0 ****** DAY ** ** ** ** 14 8 23 26 30 31 13 13 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1001.5 995.3 986.9 996.3 1000.5 1006.7 1006.8 1005.8 ****** DAY ** ** ** ** 27 5 20 1 1 17 28 10 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1977 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -1.5 4.9 12.2 14.2 19.9 27.4 29.9 26.9 21.7 14.7 7.0 4.1 15.1 MINIMUN AIR TEMPERATURE (C) -5.8 -4.3 2.4 6.3 10.2 15.8 19.3 15.1 9.6 5.8 -0.7 -3.5 5.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 10 0 0 0 0 0 12 DAYS WITH MINIMUM TEMP. <=-4 20 19 4 0 0 0 0 0 0 0 5 18 66 DAYS WITH FREEZING MIN.<= 0 31 25 11 0 0 0 0 0 0 2 22 26 117 TEMPERATURE RECORDS LOWEST(C) -15.0 -9.0 -5.0 1.0 6.0 9.0 15.0 12.0 5.0 -1.0 -7.0 -9.0 -15.0 DAY 14 2 14 17 12 1 6 12 19 24 28 11 MAXIMUM AIR TEMPERATURE (C) 4.5 15.4 21.5 22.1 28.1 35.9 38.5 35.8 31.9 23.2 15.7 11.4 23.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 5 30 31 30 30 5 0 0 132 DAYS WITH MAXIMUM TEMP. <= 0 4 0 0 0 0 0 0 0 0 0 0 0 4 TEMPERATURE RECORDS HIGHEST(C) 11.0 20.0 27.0 30.0 33.0 40.0 41.0 39.0 34.0 30.0 19.0 18.0 41.0 DAY 20 17 18 14 14 25 14 16 2 1 9 4 DIF. BETWEEN (MAX.-MIN.) (C) 10.3 19.7 19.1 15.8 17.9 20.1 19.2 20.7 22.3 17.4 16.4 14.9 17.9 MEAN DAILY TEMP. (MDT) (C) -0.7 5.6 12.0 14.2 19.1 25.8 28.9 25.5 20.7 14.5 7.5 4.0 14.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 3.5 148.0 244.0 138.5 18.5 0.0 0.0 0.0 552.5 HEATING DEG. DAYS(BASE 18 0C) 578.5 348.5 188.5 121.5 3.0 0.0 0.0 0.0 0.0 114.5 315.5 435.5 2105.5 DEWPOINT (MEAN C) -5.0 -6.7 -5.8 -1.3 -0.0 1.0 1.3 1.8 -1.9 0.0 -1.7 -2.5 -1.7 MIXING RATIO (G/KG) 3.27 2.83 3.17 4.54 4.79 5.15 5.25 5.38 4.09 4.74 4.17 3.94 4.28 VAPOUR PRESSURE (HPA) 4.42 3.84 4.29 6.10 6.45 6.89 7.00 7.22 5.52 6.42 5.64 5.34 5.76 SATURATION DEF. (HPA) 1.36 5.89 11.22 11.35 18.34 32.90 38.03 30.93 23.00 11.85 5.15 3.37 16.11 RELATIVE HUMIDITY (MEAN %) 79 49 32 43 31 20 18 22 22 43 57 66 40 RELATIVE HUMIDITY (MAX. %) 94 78 52 69 53 33 28 34 34 63 83 85 59 RELATIVE HUMIDITY (MIN. %) 56 22 15 23 14 11 10 13 12 25 32 43 23 RELATIVE HUMIDITY (MEAN% 03UTC) 92 75 48 62 49 33 27 33 34 60 80 82 56 RELATIVE HUMIDITY (MEAN% 09UTC) 70 34 20 30 19 14 12 15 15 32 41 52 30 RELATIVE HUMIDITY (MEAN% 15UTC) 74 28 23 31 20 12 11 15 16 34 45 59 31 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 15.0 0.0 9.0 24.7 4.5 0.0 0.0 0.0 0.0 5.1 16.4 26.6 101.3 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 1 1 2 DAYS WITH PRECIPITATION >= 5 0 0 1 3 0 0 0 0 0 0 1 2 7 DAYS WITH PRECIPITATION >= 1 7 0 2 5 2 0 0 0 0 2 2 5 25 DAYS WITH PRECIPITATION 10 2 2 9 3 0 2 0 0 3 5 5 41 GREATEST DAILY PRECIPITATION 3.0 0.0 5.0 9.0 2.0 0.0 0.0 0.0 0.0 3.1 13.0 11.0 13.0 DAY 2 ** 27 8 24 ** ** ** ** 26 12 22 DAY WITH THUNDER STORM 1 0 0 2 3 0 0 0 0 1 1 0 8 DAYS WITH SNOW OR SLEET 7 0 0 0 0 0 0 0 0 0 0 0 7 DAYS WITH DUST 0 2 8 11 15 7 12 6 3 10 1 2 77 WIND DIRECTION (PREVAILING) 270 270 225 225 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 6.1 5.5 11.4 11.6 8.4 8.1 7.7 7.3 6.4 8.7 6.7 7.8 7.5 PREVAILING WIND PERCENT 18.5 23.2 23.8 20.4 28.2 28.8 19.4 21.0 23.8 20.2 21.7 17.7 21.6 CALMS PERCENT OF WIND 31.9 30.4 23.8 14.6 12.5 11.3 15.3 14.9 19.2 19.8 35.0 35.5 22.0 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 265 278 232 247 266 247 125 196 212 221 260 224 244 VECTOR WIND MAGNITUDE(KNOTS) 1.2 1.9 3.7 2.8 4.1 3.7 1.1 0.1 1.5 2.0 1.5 1.5 1.8 WIND STEADINESES (MEAN %) 26.1 43.2 56.1 35.4 52.6 49.3 14.9 1.5 27.8 29.9 35.7 33.3 29.5 WIND SPEED (MEAN KNOTS) 4.6 4.4 6.6 7.9 7.8 7.5 7.4 6.6 5.4 6.7 4.2 4.5 6.1 FASTEST WIND DIRECTION 170 240 220 120 300 240 40 120 30 300 290 250 120 FASTEST WIND SPEED (KNOTS) 30 25 25 38 38 25 30 20 20 35 20 25 38 DAY 4 7 4 11 24 2 28 5 6 14 14 10 DAYS WITH SKY CLEAR (0-2)/8 10 20 12 10 11 27 25 29 29 16 18 14 221 DAYS WITH P.CLOUDY (3-6)/8 13 7 16 11 15 3 6 2 1 12 8 12 106 DAYS WITH CLOUDY (7-8)/8 8 1 3 9 5 0 0 0 0 3 4 5 38 DAYS WITH VISIBILITY =< 2 KM 9 0 1 3 1 0 2 0 0 4 5 3 28 DURATION OF SUNSHINE HOURS 157.6 ****** 267.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1977 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 845.1 848.6 847.4 843.5 844.6 840.0 837.3 842.0 846.1 848.2 848.3 847.6 844.9 MAX. QFE PRESSURE IN HPA 852.9 856.7 855.3 849.9 849.4 849.7 842.0 848.8 852.2 854.7 856.3 856.3 856.7 DAY-HOUR 11- 6 15- 6 9- 6 17- 9 14- 6 9-18 13- 6 23- 6 29- 6 19- 6 27- 6 18- 6 MIN. QFE PRESSURE IN HPA 837.4 837.0 840.8 836.1 839.0 833.9 831.3 835.5 841.0 841.3 840.1 840.1 831.3 DAY-HOUR 7-12 7- 3 30-12 24- 9 18-15 25- 3 28-15 17-15 15-15 26-12 17-12 22-12 MEAN QNH PRESSURE IN HPA 1017.7 1021.7 1020.3 1015.8 1017.0 1011.7 1008.6 1014.0 1018.7 1021.2 1021.3 1020.5 1017.4 MAX. QNH PRESSURE IN HPA 1026.7 1031.1 1029.5 1023.2 1022.6 1023.0 1014.0 1021.9 1025.9 1028.8 1030.6 1030.6 1031.1 DAY-HOUR 11- 6 15- 6 9- 6 17- 9 14- 6 9-18 13- 6 23- 6 29- 6 19- 6 27- 6 18- 6 MIN. QNH PRESSURE IN HPA 1008.7 1008.2 1012.6 1007.1 1010.5 1004.6 1001.6 1006.5 1012.8 1013.2 1011.8 1011.8 1001.6 DAY-HOUR 7-12 7- 3 30-12 24- 9 18-15 25- 3 28-15 17-15 15-15 26-12 17-12 22-12 MEAN QFF PRESSURE IN HPA 1021.9 1021.8 1015.6 1009.5 1007.3 997.3 992.8 1000.0 1008.0 1014.7 1019.8 1021.0 1010.8 MAX. QFF PRESSURE IN HPA 1036.8 1033.2 1027.9 1017.9 1012.6 1009.2 999.4 1009.3 1018.1 1024.5 1030.9 1033.0 1036.8 DAY-HOUR 14- 6 15- 6 9- 6 17- 9 14- 3 9-15 6- 3 23- 3 30- 6 24- 3 28- 6 18- 6 MIN. QFF PRESSURE IN HPA 1008.6 1006.2 1004.9 995.9 1001.9 988.4 985.4 991.5 1000.9 1003.8 1008.2 1009.6 985.4 DAY-HOUR 7-12 7- 6 30- 0 24- 9 18-15 25- 3 28-12 17-12 3-12 5-12 13-12 22-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 845.2 848.8 847.5 843.5 844.7 840.3 837.5 842.2 846.1 848.4 848.3 847.2 845.0 MAX. QFE PRESSURE IN HPA 851.9 854.7 852.7 847.1 848.3 846.5 840.5 847.0 850.6 853.1 854.0 854.3 854.7 DAY 11 15 10 17 14 6 23 23 29 20 28 18 MIN. QFE PRESSURE IN HPA 839.4 839.1 841.0 838.4 841.3 836.2 833.3 838.1 842.7 842.2 840.8 841.6 833.3 DAY 29 7 30 8 25 24 29 17 1 26 18 1 MEAN QNH PRESSURE IN HPA 1017.7 1021.9 1020.4 1015.7 1017.2 1012.0 1008.8 1014.3 1018.8 1021.4 1021.3 1020.1 1017.5 MAX. QNH PRESSURE IN HPA 1025.5 1028.8 1026.5 1019.9 1021.3 1019.2 1012.3 1019.8 1024.0 1026.9 1028.0 1028.3 1028.8 DAY 11 15 10 17 14 6 23 23 29 20 28 18 MIN. QNH PRESSURE IN HPA 1011.0 1010.6 1012.8 1009.8 1013.2 1007.3 1003.9 1009.5 1014.8 1014.2 1012.6 1013.5 1003.9 DAY 29 7 30 8 25 24 29 17 1 26 18 1 MEAN QFF PRESSURE IN HPA 1021.0 1021.2 1015.1 1009.2 1007.5 998.0 992.9 1000.1 1007.6 1014.4 1018.9 1019.6 1010.5 MAX. QFF PRESSURE IN HPA 1033.2 1029.6 1023.7 1015.2 1010.4 1007.5 997.7 1008.2 1014.3 1021.2 1028.9 1028.4 1033.2 DAY 14 15 9 2 21 6 6 23 29 28 28 18 MIN. QFF PRESSURE IN HPA 1011.5 1007.4 1004.9 1000.9 1004.2 991.2 987.0 993.8 1002.7 1006.1 1009.4 1010.5 987.0 DAY 29 7 30 25 20 24 28 17 17 5 17 15 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 845.4 848.8 848.1 843.9 845.4 840.9 838.3 843.0 847.0 848.8 848.7 847.8 845.5 MAX. QFE PRESSURE IN HPA 851.7 855.2 853.8 847.9 849.3 847.6 841.4 847.9 851.3 853.2 854.7 855.5 855.5 DAY 11 15 9 17 14 6 22 23 29 19 27 18 MIN. QFE PRESSURE IN HPA 839.4 837.0 841.6 838.3 841.6 833.9 834.5 838.0 843.4 841.6 841.2 841.5 833.9 DAY 29 7 30 8 25 25 28 17 16 26 18 23 MEAN QNH PRESSURE IN HPA 1018.0 1022.0 1021.1 1016.2 1018.0 1012.8 1009.7 1015.2 1019.8 1021.9 1021.8 1020.7 1018.1 MAX. QNH PRESSURE IN HPA 1025.3 1029.4 1027.7 1020.9 1022.5 1020.5 1013.3 1020.9 1024.8 1027.0 1028.8 1029.7 1029.7 DAY 11 15 9 17 14 6 22 23 29 19 27 18 MIN. QNH PRESSURE IN HPA 1011.0 1008.2 1013.5 1009.7 1013.5 1004.6 1005.3 1009.4 1015.6 1013.5 1013.1 1013.4 1004.6 DAY 29 7 30 8 25 25 28 17 16 26 18 23 MEAN QFF PRESSURE IN HPA 1022.9 1023.3 1017.8 1010.8 1009.0 999.1 994.9 1002.4 1010.5 1016.6 1021.5 1022.1 1012.6 MAX. QFF PRESSURE IN HPA 1035.8 1031.9 1027.8 1017.4 1012.6 1008.5 999.4 1009.3 1017.4 1024.5 1030.6 1032.7 1035.8 DAY 14 15 9 17 14 6 6 23 29 24 28 18 MIN. QFF PRESSURE IN HPA 1012.0 1006.2 1007.7 1002.7 1004.9 988.4 989.8 994.5 1005.4 1008.9 1010.8 1011.8 988.4 DAY 7 7 30 24 20 25 28 17 1 5 17 22 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1977 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 846.4 850.1 849.3 844.9 846.1 841.6 838.9 843.7 847.9 849.9 849.9 849.0 846.5 MAX. QFE PRESSURE IN HPA 852.9 856.7 855.3 849.1 849.4 847.9 842.0 848.8 852.2 854.7 856.3 856.3 856.7 DAY 11 15 9 17 14 6 13 23 29 19 27 18 MIN. QFE PRESSURE IN HPA 840.8 837.8 842.3 838.6 842.0 837.9 835.0 839.1 844.7 843.4 842.8 842.3 835.0 DAY 7 7 30 24 19 23 28 17 16 26 17 23 MEAN QNH PRESSURE IN HPA 1019.1 1023.5 1022.5 1017.3 1018.8 1013.6 1010.4 1016.0 1020.9 1023.2 1023.2 1022.1 1019.2 MAX. QNH PRESSURE IN HPA 1026.7 1031.1 1029.5 1022.3 1022.6 1020.9 1014.0 1021.9 1025.9 1028.8 1030.6 1030.6 1031.1 DAY 11 15 9 17 14 6 13 23 29 19 27 18 MIN. QNH PRESSURE IN HPA 1012.6 1009.1 1014.4 1010.1 1014.0 1009.2 1005.9 1010.6 1017.2 1015.6 1014.9 1014.4 1005.9 DAY 7 7 30 24 19 23 28 17 16 26 17 23 MEAN QFF PRESSURE IN HPA 1024.2 1024.4 1018.2 1010.9 1008.7 998.7 994.5 1001.8 1010.0 1016.8 1022.3 1023.3 1012.8 MAX. QFF PRESSURE IN HPA 1036.8 1033.2 1027.9 1017.0 1011.4 1007.6 999.0 1008.7 1018.1 1024.5 1030.9 1033.0 1036.8 DAY 14 15 9 2 9 6 23 23 30 28 28 18 MIN. QFF PRESSURE IN HPA 1014.0 1006.2 1008.3 999.5 1004.0 992.4 988.9 993.9 1004.6 1009.5 1012.7 1012.9 988.9 DAY 29 7 30 24 19 30 28 17 1 5 17 22 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 845.3 849.2 847.9 843.8 845.0 840.4 837.8 842.5 846.7 848.4 848.6 847.8 845.3 MAX. QFE PRESSURE IN HPA 850.8 855.6 853.7 849.9 848.6 846.8 840.8 847.5 850.8 852.8 855.0 855.0 855.6 DAY 10 15 9 17 14 6 13 23 30 19 27 18 MIN. QFE PRESSURE IN HPA 838.9 838.7 842.1 836.1 840.8 836.2 834.2 838.0 843.2 841.9 841.0 841.2 834.2 DAY 7 7 30 24 19 23 28 17 16 26 17 23 MEAN QNH PRESSURE IN HPA 1017.8 1022.4 1020.9 1016.1 1017.5 1012.2 1009.2 1014.6 1019.4 1021.5 1021.7 1020.8 1017.8 MAX. QNH PRESSURE IN HPA 1024.2 1029.8 1027.6 1023.2 1021.7 1019.6 1012.6 1020.4 1024.2 1026.6 1029.1 1029.1 1029.8 DAY 10 15 9 17 14 6 13 23 30 19 27 18 MIN. QNH PRESSURE IN HPA 1010.4 1010.2 1014.1 1007.1 1012.6 1007.3 1004.9 1009.4 1015.4 1013.9 1012.8 1013.1 1004.9 DAY 7 7 30 24 19 23 28 17 16 26 17 23 MEAN QFF PRESSURE IN HPA 1021.6 1021.7 1015.2 1009.5 1007.2 997.2 992.8 999.8 1007.8 1014.1 1019.2 1020.5 1010.6 MAX. QFF PRESSURE IN HPA 1033.9 1029.6 1024.9 1017.9 1010.3 1007.3 997.3 1006.9 1014.7 1021.4 1027.6 1029.7 1033.9 DAY 14 15 9 17 9 4 31 23 30 28 27 18 MIN. QFF PRESSURE IN HPA 1011.5 1007.9 1007.4 995.9 1003.1 991.4 987.6 992.2 1003.1 1005.8 1008.5 1012.0 987.6 DAY 29 7 30 24 19 27 28 17 16 5 13 22 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 844.2 847.3 846.1 842.4 843.5 839.0 836.2 840.7 844.8 846.6 847.1 846.3 843.7 MAX. QFE PRESSURE IN HPA 850.0 853.5 851.6 846.3 846.5 845.3 839.2 845.9 848.8 851.3 853.5 853.5 853.5 DAY 10 15 9 17 14 6 22 23 25 18 27 18 MIN. QFE PRESSURE IN HPA 837.4 839.0 840.8 836.1 839.7 835.0 832.3 836.2 841.6 841.3 840.1 840.1 832.3 DAY 7 7 30 24 18 27 28 17 16 26 17 22 MEAN QNH PRESSURE IN HPA 1016.6 1020.2 1018.7 1014.5 1015.7 1010.5 1007.2 1012.5 1017.3 1019.4 1020.0 1019.0 1016.0 MAX. QNH PRESSURE IN HPA 1023.3 1027.4 1025.2 1019.0 1019.2 1017.9 1010.8 1018.5 1021.9 1024.8 1027.4 1027.4 1027.4 DAY 10 15 9 17 14 6 22 23 25 18 27 18 MIN. QNH PRESSURE IN HPA 1008.7 1010.5 1012.6 1007.1 1011.3 1005.9 1002.7 1007.3 1013.5 1013.2 1011.8 1011.8 1002.7 DAY 7 7 30 24 18 27 28 17 16 26 17 22 MEAN QFF PRESSURE IN HPA 1019.8 1019.3 1013.3 1007.9 1006.1 996.3 991.3 998.2 1006.0 1012.3 1017.4 1018.4 1008.9 MAX. QFF PRESSURE IN HPA 1030.8 1026.5 1022.1 1013.1 1009.9 1006.3 995.4 1006.7 1012.6 1019.1 1026.4 1028.2 1030.8 DAY 14 15 9 17 20 4 6 23 30 24 27 18 MIN. QFF PRESSURE IN HPA 1008.6 1008.3 1005.5 998.4 1002.6 990.1 985.4 991.5 1000.9 1003.8 1008.2 1009.6 985.4 DAY 7 7 30 24 19 29 28 17 3 5 13 22 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1977 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 844.5 847.4 846.0 842.5 843.2 838.6 835.7 840.2 844.4 847.0 847.4 847.0 843.7 MAX. QFE PRESSURE IN HPA 850.8 853.1 851.9 845.7 846.6 849.3 838.8 845.6 848.4 852.0 853.8 854.1 854.1 DAY 10 15 9 14 28 9 22 23 28 19 27 18 MIN. QFE PRESSURE IN HPA 838.4 840.3 841.0 837.2 839.0 834.5 831.3 835.5 841.0 841.7 840.5 841.2 831.3 DAY 7 6 31 7 18 27 28 17 15 26 17 22 MEAN QNH PRESSURE IN HPA 1016.9 1020.3 1018.7 1014.5 1015.4 1010.1 1006.6 1011.9 1016.8 1019.8 1020.3 1019.8 1015.9 MAX. QNH PRESSURE IN HPA 1024.2 1026.9 1025.5 1018.3 1019.4 1022.5 1010.3 1018.2 1021.5 1025.6 1027.7 1028.1 1028.1 DAY 10 15 9 14 28 9 22 23 28 19 27 18 MIN. QNH PRESSURE IN HPA 1009.8 1012.0 1012.8 1008.4 1010.5 1005.3 1001.6 1006.5 1012.8 1013.7 1012.3 1013.1 1001.6 DAY 7 6 31 7 18 27 28 17 15 26 17 22 MEAN QFF PRESSURE IN HPA 1021.8 1021.5 1015.2 1009.1 1006.4 996.2 991.7 999.0 1007.3 1014.6 1019.9 1021.2 1010.3 MAX. QFF PRESSURE IN HPA 1033.8 1028.8 1024.4 1014.8 1011.0 1009.2 996.4 1006.6 1013.1 1020.7 1028.8 1030.3 1033.8 DAY 14 14 9 17 5 9 6 23 28 14 27 18 MIN. QFF PRESSURE IN HPA 1011.4 1009.7 1007.9 1000.3 1001.9 989.8 986.6 992.0 1002.1 1007.1 1009.3 1011.9 986.6 DAY 7 6 30 24 18 30 28 17 3 5 17 22 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 845.1 848.5 847.2 843.6 844.5 839.7 836.9 841.6 845.7 848.1 848.3 847.8 844.7 MAX. QFE PRESSURE IN HPA 851.8 854.3 852.7 846.8 848.6 849.7 840.7 846.9 850.2 853.0 854.5 854.1 854.5 DAY 10 14 9 14 28 9 22 23 28 19 27 18 MIN. QFE PRESSURE IN HPA 839.4 840.5 841.7 836.5 841.2 835.5 832.1 837.6 842.2 842.7 841.2 842.0 832.1 DAY 7 6 31 24 24 23 28 16 15 26 16 22 MEAN QNH PRESSURE IN HPA 1017.6 1021.5 1020.1 1015.8 1016.9 1011.3 1008.1 1013.6 1018.3 1021.1 1021.3 1020.8 1017.2 MAX. QNH PRESSURE IN HPA 1025.4 1028.3 1026.5 1019.6 1021.7 1023.0 1012.5 1019.7 1023.5 1026.8 1028.5 1028.1 1028.5 DAY 10 14 9 14 28 9 22 23 28 19 27 18 MIN. QNH PRESSURE IN HPA 1011.0 1012.3 1013.7 1007.6 1013.1 1006.5 1002.5 1008.9 1014.2 1014.8 1013.1 1014.0 1002.5 DAY 7 6 31 24 24 23 28 16 15 26 16 22 MEAN QFF PRESSURE IN HPA 1022.7 1022.3 1015.7 1009.3 1006.8 996.4 992.3 999.4 1007.5 1014.7 1020.5 1022.0 1010.8 MAX. QFF PRESSURE IN HPA 1034.8 1030.5 1023.4 1016.4 1010.6 1007.8 997.0 1006.2 1014.7 1020.3 1029.8 1029.6 1034.8 DAY 14 14 7 1 28 9 22 23 28 27 27 31 MIN. QFF PRESSURE IN HPA 1013.2 1010.7 1007.2 997.5 1003.1 989.5 986.0 992.5 1002.6 1006.2 1011.8 1013.6 986.0 DAY 28 6 31 24 18 30 28 16 4 5 16 22 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 845.2 848.7 847.4 843.7 844.7 839.8 837.4 842.0 846.1 848.3 848.2 847.8 844.9 MAX. QFE PRESSURE IN HPA 852.3 854.5 852.7 846.9 848.2 846.1 840.7 847.5 850.4 853.3 854.0 854.1 854.5 DAY 10 14 9 16 13 5 22 23 28 19 27 18 MIN. QFE PRESSURE IN HPA 839.4 840.3 841.6 838.2 841.4 836.2 832.4 838.0 842.5 843.0 841.0 841.8 832.4 DAY 28 6 29 24 18 23 28 18 15 25 16 22 MEAN QNH PRESSURE IN HPA 1017.7 1021.7 1020.3 1016.0 1017.1 1011.5 1008.6 1014.1 1018.8 1021.3 1021.3 1020.8 1017.4 MAX. QNH PRESSURE IN HPA 1026.0 1028.5 1026.5 1019.7 1021.2 1018.8 1012.5 1020.4 1023.8 1027.2 1028.0 1028.1 1028.5 DAY 10 14 9 16 13 5 22 23 28 19 27 18 MIN. QNH PRESSURE IN HPA 1011.0 1012.0 1013.5 1009.6 1013.3 1007.3 1002.8 1009.4 1014.6 1015.2 1012.8 1013.8 1002.8 DAY 28 6 29 24 18 23 28 18 15 25 16 22 MEAN QFF PRESSURE IN HPA 1021.6 1021.1 1014.5 1009.4 1006.8 996.4 992.3 999.4 1007.3 1014.0 1019.0 1020.6 1010.2 MAX. QFF PRESSURE IN HPA 1033.7 1029.6 1023.7 1015.8 1010.2 1006.4 996.8 1006.3 1013.6 1020.6 1028.6 1027.8 1033.7 DAY 14 14 8 1 28 4 31 23 28 27 27 17 MIN. QFF PRESSURE IN HPA 1012.0 1009.0 1006.2 999.1 1003.6 990.2 985.4 992.7 1002.1 1005.8 1009.6 1013.8 985.4 DAY 28 6 29 24 24 30 28 16 16 5 16 22 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.9 5.0 9.0 15.1 20.1 25.0 26.7 26.0 21.5 15.5 5.0 4.9 14.6 MINIMUN AIR TEMPERATURE (C) -6.3 -3.7 -0.2 4.2 8.9 13.7 14.6 12.5 8.4 4.5 -2.5 -1.1 4.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH MINIMUM TEMP. <=-4 25 15 7 0 0 0 0 0 0 0 13 8 68 DAYS WITH FREEZING MIN.<= 0 30 26 16 2 0 0 0 0 0 0 23 20 117 TEMPERATURE RECORDS LOWEST(C) -12.0 -9.0 -7.0 0.0 1.0 6.0 10.0 10.0 5.0 1.0 -8.0 -6.0 -12.0 DAY 16 1 16 2 4 4 10 4 25 16 6 1 MAXIMUM AIR TEMPERATURE (C) 9.9 14.1 18.2 24.9 29.6 34.0 35.6 36.0 32.6 26.0 13.1 12.3 23.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 18 28 31 31 29 1 0 0 138 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 16.0 20.0 24.0 29.0 34.0 39.0 40.0 38.0 36.0 31.0 22.0 19.0 40.0 DAY 21 18 30 6 18 30 2 7 1 1 1 12 DIF. BETWEEN (MAX.-MIN.) (C) 16.2 17.8 18.4 20.7 20.7 20.3 21.0 23.5 24.2 21.5 15.6 13.4 19.5 MEAN DAILY TEMP. (MDT) (C) 1.8 5.2 9.0 14.5 19.2 23.8 25.1 24.3 20.5 15.3 5.3 5.6 14.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 13.5 92.0 127.5 102.0 9.0 0.0 0.0 0.0 344.0 HEATING DEG. DAYS(BASE 18 0C) 502.0 357.5 279.5 105.5 26.0 1.0 0.0 0.0 0.0 85.0 380.0 384.5 2121.0 DEWPOINT (MEAN C) -4.9 -4.3 -5.5 -6.1 -2.8 0.2 0.7 -0.6 -2.2 -3.7 -3.7 -1.9 -2.9 MIXING RATIO (G/KG) 3.31 3.41 3.21 3.15 3.83 4.85 5.14 4.50 3.96 3.52 3.68 4.11 3.89 VAPOUR PRESSURE (HPA) 4.49 4.61 4.34 4.24 5.16 6.49 6.88 6.04 5.35 4.77 4.98 5.56 5.24 SATURATION DEF. (HPA) 3.03 4.80 8.09 14.44 20.53 27.59 30.77 30.48 23.09 14.43 4.46 3.59 15.44 RELATIVE HUMIDITY (MEAN %) 66 56 41 27 25 22 21 19 22 29 58 65 38 RELATIVE HUMIDITY (MAX. %) 87 80 67 50 44 35 33 31 36 45 80 84 56 RELATIVE HUMIDITY (MIN. %) 39 31 19 10 12 12 12 11 13 15 34 43 21 RELATIVE HUMIDITY (MEAN% 03UTC) 85 77 64 46 40 34 31 30 35 44 76 83 54 RELATIVE HUMIDITY (MEAN% 09UTC) 50 40 27 16 15 15 15 14 16 20 43 52 27 RELATIVE HUMIDITY (MEAN% 15UTC) 52 41 27 16 15 14 14 13 15 20 48 57 28 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 13.4 6.3 3.5 0.8 2.0 0.0 0.0 0.0 0.0 0.0 21.0 57.5 104.5 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 1 2 3 DAYS WITH PRECIPITATION >= 5 1 1 0 0 0 0 0 0 0 0 1 2 5 DAYS WITH PRECIPITATION >= 1 4 1 2 0 1 0 0 0 0 0 4 2 14 DAYS WITH PRECIPITATION 4 4 5 2 1 0 1 0 0 0 5 5 27 GREATEST DAILY PRECIPITATION 5.0 5.0 2.0 0.5 2.0 0.0 0.0 0.0 0.0 0.0 15.0 43.5 43.5 DAY 4 9 6 17 2 ** ** ** ** ** 11 3 DAY WITH THUNDER STORM 0 0 0 1 0 0 0 0 0 0 0 1 2 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 1 1 10 14 14 18 10 2 2 5 6 1 84 WIND DIRECTION (PREVAILING) 270 270 270 270 270 225 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 7.0 8.4 9.3 9.6 8.4 11.5 8.8 8.1 8.9 9.4 7.6 7.2 8.6 PREVAILING WIND PERCENT 27.4 24.6 22.6 28.3 25.8 26.7 25.8 20.2 31.3 31.5 12.9 11.3 23.8 CALMS PERCENT OF WIND 26.2 26.3 18.5 13.8 15.7 0.4 0.4 0.0 0.0 0.0 41.7 46.4 15.7 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 259 252 260 248 255 250 8 184 235 249 249 210 250 VECTOR WIND MAGNITUDE(KNOTS) 2.1 2.6 3.4 6.1 4.3 3.4 2.1 1.8 3.2 3.2 1.1 1.0 2.5 WIND STEADINESES (MEAN %) 39.6 44.8 45.9 70.1 55.8 32.7 20.4 20.5 36.8 38.1 23.9 25.0 33.3 WIND SPEED (MEAN KNOTS) 5.3 5.8 7.4 8.7 7.7 10.4 10.3 8.8 8.7 8.4 4.6 4.0 7.5 FASTEST WIND DIRECTION 240 240 250 220 240 240 50 50 330 250 250 230 220 FASTEST WIND SPEED (KNOTS) 30 25 25 40 32 36 26 20 18 22 30 20 40 DAY 21 11 6 25 31 1 6 9 2 21 1 12 DAYS WITH SKY CLEAR (0-2)/8 18 13 13 10 25 28 30 31 30 23 19 15 255 DAYS WITH P.CLOUDY (3-6)/8 10 9 17 18 6 2 1 0 0 8 7 11 89 DAYS WITH CLOUDY (7-8)/8 3 6 1 2 0 0 0 0 0 0 4 5 21 DAYS WITH VISIBILITY =< 2 KM 5 4 0 1 2 4 2 0 0 1 4 4 27 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 847.4 846.3 844.8 843.7 842.9 839.9 841.4 841.0 844.9 849.3 848.5 847.6 844.8 MAX. QFE PRESSURE IN HPA 854.7 853.6 851.3 849.3 848.7 847.3 847.9 844.9 850.3 855.0 857.5 855.7 857.5 DAY-HOUR 13- 6 6- 6 20- 6 5- 6 3- 6 4- 6 9- 3 30- 6 16- 6 11- 6 26- 6 24- 6 MIN. QFE PRESSURE IN HPA 838.0 839.2 836.9 836.5 835.0 832.6 832.7 836.8 836.3 842.0 840.4 831.8 831.8 DAY-HOUR 26- 0 22-15 13- 9 25-12 29-15 26-15 6- 0 5-15 1-15 18-18 12-15 25-18 MEAN QNH PRESSURE IN HPA 1020.3 1019.0 1017.3 1015.9 1015.1 1011.6 1013.3 1012.9 1017.4 1022.6 1021.6 1020.6 1017.3 MAX. QNH PRESSURE IN HPA 1028.8 1027.5 1024.8 1022.5 1021.8 1020.2 1020.9 1017.4 1023.7 1029.1 1032.0 1029.9 1032.0 DAY-HOUR 13- 6 6- 6 20- 6 5- 6 3- 6 4- 6 9- 3 30- 6 16- 6 11- 6 26- 6 24- 6 MIN. QNH PRESSURE IN HPA 1009.4 1010.8 1008.1 1007.6 1005.9 1003.1 1003.2 1008.0 1007.4 1014.0 1012.2 1002.2 1002.2 DAY-HOUR 26- 0 22-15 13- 9 25-12 29-15 26-15 6- 0 5-15 1-15 18-18 12-15 25-18 MEAN QFF PRESSURE IN HPA 1022.4 1018.9 1014.5 1009.3 1005.3 998.8 999.4 999.5 1006.8 1015.7 1021.4 1020.4 1011.0 MAX. QFF PRESSURE IN HPA 1033.7 1031.5 1025.8 1016.4 1017.9 1010.7 1009.6 1004.9 1014.2 1023.0 1036.2 1033.4 1036.2 DAY-HOUR 13- 6 6- 6 20- 3 2- 3 4- 3 4- 3 9- 3 16- 3 29- 3 24- 6 26- 6 24- 6 MIN. QFF PRESSURE IN HPA 1005.7 1008.8 1003.0 996.9 994.7 989.1 988.7 993.8 993.9 1005.5 1009.4 1004.3 988.7 DAY-HOUR 21-12 22-12 13- 9 25- 9 30- 0 30-18 6- 0 6-12 1-12 1-15 1- 9 25-18 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 847.4 846.4 844.9 843.7 843.2 840.4 841.6 841.3 845.1 849.5 848.6 847.7 845.0 MAX. QFE PRESSURE IN HPA 853.5 852.0 850.0 846.5 847.7 845.9 847.5 843.4 848.4 853.6 855.6 853.9 855.6 DAY 13 6 20 7 3 9 9 30 17 11 26 25 MIN. QFE PRESSURE IN HPA 838.0 841.2 839.1 839.8 836.0 835.1 832.7 838.8 839.6 843.6 841.6 840.9 832.7 DAY 26 12 13 19 30 26 6 6 7 1 13 3 MEAN QNH PRESSURE IN HPA 1020.3 1019.2 1017.3 1016.0 1015.4 1012.1 1013.5 1013.2 1017.6 1022.7 1021.6 1020.6 1017.5 MAX. QNH PRESSURE IN HPA 1027.4 1025.6 1023.3 1019.2 1020.6 1018.5 1020.4 1015.6 1021.5 1027.5 1029.8 1027.8 1029.8 DAY 13 6 20 7 3 9 9 30 17 11 26 25 MIN. QNH PRESSURE IN HPA 1009.4 1013.1 1010.6 1011.5 1007.0 1006.0 1003.2 1010.3 1011.2 1015.9 1013.5 1012.7 1003.2 DAY 26 12 13 19 30 26 6 6 7 1 13 3 MEAN QFF PRESSURE IN HPA 1021.4 1018.3 1014.2 1009.0 1005.8 999.4 999.8 999.8 1006.6 1015.2 1020.7 1019.6 1010.8 MAX. QFF PRESSURE IN HPA 1029.8 1026.6 1023.8 1014.4 1016.8 1009.5 1008.5 1002.5 1011.8 1019.4 1031.3 1028.7 1031.3 DAY 13 6 20 3 4 5 9 16 29 11 26 25 MIN. QFF PRESSURE IN HPA 1006.9 1010.7 1004.3 1001.6 994.7 992.4 988.7 995.5 997.9 1006.4 1010.6 1006.9 988.7 DAY 26 18 13 25 30 30 6 6 1 1 1 3 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 847.8 846.8 845.4 844.4 843.8 841.2 842.4 842.2 845.8 850.1 848.9 848.0 845.6 MAX. QFE PRESSURE IN HPA 854.0 852.2 850.6 847.5 848.0 846.7 847.9 844.1 849.0 854.6 855.8 853.8 855.8 DAY 13 2 20 7 3 4 9 16 16 11 26 24 MIN. QFE PRESSURE IN HPA 839.2 842.8 838.3 839.4 836.9 835.2 836.5 839.8 840.1 843.9 842.7 840.1 835.2 DAY 26 25 13 25 30 22 2 6 2 1 13 3 MEAN QNH PRESSURE IN HPA 1020.8 1019.6 1017.9 1016.8 1016.1 1013.0 1014.5 1014.2 1018.4 1023.4 1022.0 1020.9 1018.1 MAX. QNH PRESSURE IN HPA 1028.0 1025.9 1024.0 1020.4 1021.0 1019.5 1020.9 1016.5 1022.1 1028.7 1030.1 1027.7 1030.1 DAY 13 2 20 7 3 4 9 16 16 11 26 24 MIN. QNH PRESSURE IN HPA 1010.8 1014.9 1009.7 1011.0 1008.1 1006.1 1007.6 1011.5 1011.8 1016.2 1014.8 1011.8 1006.1 DAY 26 25 13 25 30 22 2 6 2 1 13 3 MEAN QFF PRESSURE IN HPA 1023.9 1020.4 1016.3 1011.5 1007.1 1001.1 1001.7 1002.2 1009.4 1018.2 1022.8 1021.7 1013.0 MAX. QFF PRESSURE IN HPA 1033.2 1029.4 1025.8 1016.4 1017.9 1010.7 1009.6 1004.9 1014.2 1022.8 1034.6 1030.9 1034.6 DAY 13 6 20 2 4 4 9 16 29 24 26 25 MIN. QFF PRESSURE IN HPA 1010.7 1010.8 1004.5 1002.3 996.5 993.5 992.2 998.9 1000.2 1008.1 1011.8 1007.1 992.2 DAY 21 18 13 25 30 30 2 6 2 1 1 3 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 849.0 847.9 846.4 845.3 844.4 841.6 842.8 842.9 846.8 851.2 850.1 849.3 846.5 MAX. QFE PRESSURE IN HPA 854.7 853.6 851.3 849.3 848.7 847.3 847.7 844.9 850.3 855.0 857.5 855.7 857.5 DAY 13 6 20 5 3 4 9 30 16 11 26 24 MIN. QFE PRESSURE IN HPA 840.6 843.3 837.7 839.0 838.0 835.3 837.1 840.6 841.1 845.6 844.1 842.5 835.3 DAY 21 25 13 25 7 22 2 6 1 1 13 3 MEAN QNH PRESSURE IN HPA 1022.2 1020.9 1019.1 1017.9 1016.9 1013.5 1014.9 1015.0 1019.6 1024.8 1023.5 1022.5 1019.2 MAX. QNH PRESSURE IN HPA 1028.8 1027.5 1024.8 1022.5 1021.8 1020.2 1020.6 1017.4 1023.7 1029.1 1032.0 1029.9 1032.0 DAY 13 6 20 5 3 4 9 30 16 11 26 24 MIN. QNH PRESSURE IN HPA 1012.4 1015.5 1009.0 1010.5 1009.4 1006.2 1008.3 1012.4 1013.0 1018.2 1016.5 1014.6 1006.2 DAY 21 25 13 25 7 22 2 6 1 1 13 3 MEAN QFF PRESSURE IN HPA 1025.1 1021.6 1016.3 1011.1 1006.7 1000.4 1000.5 1001.4 1008.7 1018.1 1024.0 1023.3 1013.1 MAX. QFF PRESSURE IN HPA 1033.7 1031.5 1024.3 1016.1 1016.4 1009.9 1008.4 1004.0 1013.9 1023.0 1036.2 1033.4 1036.2 DAY 13 6 20 3 4 4 9 31 29 24 26 24 MIN. QFF PRESSURE IN HPA 1008.4 1013.2 1004.0 999.9 997.8 993.2 991.5 999.0 999.6 1008.8 1011.3 1011.3 991.5 DAY 21 18 13 25 7 30 1 6 2 1 1 3 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 847.7 846.9 845.1 843.8 843.3 840.4 841.6 841.6 845.5 849.7 848.6 848.0 845.2 MAX. QFE PRESSURE IN HPA 852.8 852.6 849.9 848.2 847.4 846.1 846.5 843.6 849.0 853.2 855.8 855.1 855.8 DAY 13 1 20 5 4 4 8 21 16 25 26 24 MIN. QFE PRESSURE IN HPA 839.4 841.9 836.9 837.2 836.6 834.5 835.8 839.3 839.6 844.6 842.2 841.6 834.5 DAY 21 11 13 25 7 22 2 6 1 1 12 16 MEAN QNH PRESSURE IN HPA 1020.7 1019.7 1017.7 1016.1 1015.5 1012.2 1013.6 1013.5 1018.0 1023.0 1021.7 1021.0 1017.7 MAX. QNH PRESSURE IN HPA 1026.6 1026.3 1023.2 1021.2 1020.3 1018.8 1019.2 1015.9 1022.1 1027.0 1030.1 1029.2 1030.1 DAY 13 1 20 5 4 4 8 21 16 25 26 24 MIN. QNH PRESSURE IN HPA 1011.0 1013.9 1008.1 1008.4 1007.7 1005.3 1006.8 1010.9 1011.2 1017.0 1014.2 1013.5 1005.3 DAY 21 11 13 25 7 22 2 6 1 1 12 16 MEAN QFF PRESSURE IN HPA 1021.9 1018.8 1014.2 1008.7 1005.2 998.8 999.1 999.2 1006.3 1015.1 1020.7 1020.2 1010.7 MAX. QFF PRESSURE IN HPA 1029.9 1027.6 1022.7 1015.2 1013.6 1008.5 1006.8 1002.7 1011.0 1019.6 1031.7 1030.8 1031.7 DAY 13 6 20 3 4 4 8 30 29 11 26 24 MIN. QFF PRESSURE IN HPA 1006.1 1012.7 1003.0 996.9 997.4 991.1 991.6 995.9 996.6 1006.1 1009.4 1009.8 991.1 DAY 21 25 13 25 31 30 2 26 1 1 1 12 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 846.1 844.9 843.4 842.1 841.6 838.7 840.0 839.7 843.6 848.0 847.2 846.5 843.5 MAX. QFE PRESSURE IN HPA 851.1 850.5 847.8 846.3 846.2 844.4 844.9 842.1 847.8 851.8 854.4 853.5 854.4 DAY 13 1 20 5 3 4 8 21 16 10 26 24 MIN. QFE PRESSURE IN HPA 838.5 839.5 837.0 836.5 835.1 833.2 834.6 837.7 836.9 843.0 840.5 839.8 833.2 DAY 21 22 13 25 7 26 2 6 1 1 12 16 MEAN QNH PRESSURE IN HPA 1018.8 1017.4 1015.6 1014.1 1013.5 1010.1 1011.7 1011.4 1015.9 1020.9 1020.1 1019.3 1015.7 MAX. QNH PRESSURE IN HPA 1024.6 1023.9 1020.8 1019.0 1018.9 1016.8 1017.4 1014.1 1020.8 1025.4 1028.4 1027.4 1028.4 DAY 13 1 20 5 3 4 8 21 16 10 26 24 MIN. QNH PRESSURE IN HPA 1009.9 1011.1 1008.2 1007.6 1006.0 1003.8 1005.4 1009.0 1008.1 1015.2 1012.3 1011.5 1003.8 DAY 21 22 13 25 7 26 2 6 1 1 12 16 MEAN QFF PRESSURE IN HPA 1019.8 1016.4 1012.3 1007.1 1003.9 997.3 997.9 997.8 1004.8 1013.4 1019.1 1018.1 1009.0 MAX. QFF PRESSURE IN HPA 1027.9 1025.6 1020.6 1012.1 1013.9 1006.5 1004.3 1001.2 1009.2 1017.8 1030.1 1028.6 1030.1 DAY 13 6 20 2 3 4 9 15 16 10 26 24 MIN. QFF PRESSURE IN HPA 1005.7 1008.8 1003.0 998.8 995.5 989.8 989.5 993.8 993.9 1005.9 1009.5 1008.9 989.5 DAY 21 22 13 25 30 30 1 6 1 1 1 12 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 846.4 845.0 843.7 842.3 841.3 838.1 839.7 839.1 843.3 847.9 847.5 846.9 843.4 MAX. QFE PRESSURE IN HPA 850.8 850.4 848.6 846.0 845.8 844.0 844.5 841.5 846.9 852.0 854.5 853.7 854.5 DAY 2 5 19 6 2 8 8 15 16 10 26 24 MIN. QFE PRESSURE IN HPA 839.4 839.2 839.2 837.3 835.0 832.6 834.0 836.8 836.3 842.8 840.4 840.5 832.6 DAY 21 22 13 19 29 26 2 5 1 1 12 16 MEAN QNH PRESSURE IN HPA 1019.1 1017.5 1016.0 1014.4 1013.2 1009.5 1011.3 1010.7 1015.5 1020.8 1020.4 1019.7 1015.7 MAX. QNH PRESSURE IN HPA 1024.2 1023.8 1021.7 1018.7 1018.4 1016.3 1016.9 1013.4 1019.7 1025.6 1028.5 1027.6 1028.5 DAY 2 5 19 6 2 8 8 15 16 10 26 24 MIN. QNH PRESSURE IN HPA 1011.0 1010.8 1010.8 1008.5 1005.9 1003.1 1004.7 1008.0 1007.4 1014.9 1012.2 1012.3 1003.1 DAY 21 22 13 19 29 26 2 5 1 1 12 16 MEAN QFF PRESSURE IN HPA 1022.1 1018.1 1014.2 1008.9 1004.1 997.3 998.4 998.4 1006.3 1015.6 1021.2 1020.3 1010.4 MAX. QFF PRESSURE IN HPA 1029.8 1026.6 1020.6 1013.5 1012.5 1007.0 1004.4 1002.1 1011.2 1020.2 1032.7 1031.2 1032.7 DAY 16 5 19 6 3 4 8 15 28 10 26 24 MIN. QFF PRESSURE IN HPA 1009.5 1010.0 1006.9 1002.8 995.9 989.5 988.8 995.8 994.7 1005.5 1012.5 1010.7 988.8 DAY 21 22 13 19 29 30 2 2 1 1 12 12 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 847.6 846.3 844.9 843.8 842.8 839.4 841.2 840.5 844.6 849.1 848.6 847.0 844.7 MAX. QFE PRESSURE IN HPA 852.5 852.0 849.9 847.0 847.8 845.2 845.8 843.0 847.9 853.8 855.7 854.2 855.7 DAY 12 5 19 5 3 8 8 10 16 10 5 24 MIN. QFE PRESSURE IN HPA 841.3 840.1 839.1 839.1 835.8 834.3 835.4 837.9 838.4 842.0 841.3 831.8 831.8 DAY 25 11 24 19 29 21 2 5 1 18 12 25 MEAN QNH PRESSURE IN HPA 1020.6 1019.0 1017.4 1016.1 1015.0 1011.0 1013.1 1012.3 1017.0 1022.2 1021.6 1019.9 1017.1 MAX. QNH PRESSURE IN HPA 1026.2 1025.6 1023.2 1019.8 1020.8 1017.7 1018.4 1015.2 1020.9 1027.7 1029.9 1028.2 1029.9 DAY 12 5 19 5 3 8 8 10 16 10 5 24 MIN. QNH PRESSURE IN HPA 1013.2 1011.8 1010.6 1010.6 1006.8 1005.1 1006.3 1009.2 1009.8 1014.0 1013.2 1002.2 1002.2 DAY 25 11 24 19 29 21 2 5 1 18 12 25 MEAN QFF PRESSURE IN HPA 1023.4 1019.6 1014.6 1009.2 1004.9 997.8 998.7 998.7 1006.3 1015.6 1022.3 1020.6 1011.0 MAX. QFF PRESSURE IN HPA 1030.1 1029.3 1022.4 1013.7 1015.4 1007.7 1005.7 1002.3 1011.0 1020.9 1034.4 1031.1 1034.4 DAY 16 5 19 1 3 4 8 30 28 24 26 24 MIN. QFF PRESSURE IN HPA 1011.5 1012.2 1005.2 1003.0 995.3 989.1 989.6 995.8 996.8 1006.1 1013.5 1004.3 989.1 DAY 21 22 24 24 29 30 2 5 1 1 8 25 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 847.4 846.4 844.9 843.9 842.9 840.0 841.8 841.0 845.0 849.5 848.6 847.8 844.9 MAX. QFE PRESSURE IN HPA 853.5 852.0 850.0 847.0 847.5 845.9 846.8 843.4 848.1 853.8 855.4 854.2 855.4 DAY 12 5 19 5 3 8 8 29 16 10 26 24 MIN. QFE PRESSURE IN HPA 840.9 840.6 839.8 839.4 835.9 834.5 836.2 838.3 839.6 845.2 841.3 841.9 834.5 DAY 25 11 24 19 29 21 1 5 6 1 12 16 MEAN QNH PRESSURE IN HPA 1020.2 1019.1 1017.4 1016.2 1015.1 1011.6 1013.8 1012.9 1017.5 1022.7 1021.7 1020.8 1017.4 MAX. QNH PRESSURE IN HPA 1027.4 1025.6 1023.3 1019.8 1020.4 1018.5 1019.6 1015.6 1021.1 1027.7 1029.6 1028.2 1029.6 DAY 12 5 19 5 3 8 8 29 16 10 26 24 MIN. QNH PRESSURE IN HPA 1012.7 1012.4 1011.5 1011.0 1006.9 1005.3 1007.3 1009.7 1011.2 1017.7 1013.2 1013.9 1005.3 DAY 25 11 24 19 29 21 1 5 6 1 12 16 MEAN QFF PRESSURE IN HPA 1021.5 1018.1 1014.0 1008.7 1004.7 998.2 999.4 998.6 1005.9 1015.0 1020.8 1020.0 1010.4 MAX. QFF PRESSURE IN HPA 1030.2 1027.0 1023.2 1014.2 1014.0 1008.3 1007.0 1002.2 1010.9 1019.8 1031.2 1029.4 1031.2 DAY 12 5 19 2 3 4 8 29 28 10 26 24 MIN. QFF PRESSURE IN HPA 1010.8 1011.9 1004.3 999.8 995.1 991.1 990.8 995.2 998.5 1007.5 1011.8 1009.5 990.8 DAY 25 17 24 24 29 30 2 5 1 1 8 12 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** 24.3 21.3 16.7 7.5 1.8 ***** MINIMUN AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** 13.4 9.4 6.8 -2.6 -4.3 ***** DAYS WITH MINIMUM TEMP. >=21 **** **** **** **** **** **** **** 1 0 0 0 0 **** DAYS WITH MINIMUM TEMP. <=-4 **** **** **** **** **** **** **** 0 0 0 13 20 **** DAYS WITH FREEZING MIN.<= 0 **** **** **** **** **** **** **** 0 0 0 21 28 **** TEMPERATURE RECORDS LOWEST(C) ***** ***** ***** ***** ***** ***** ***** 9.0 5.0 3.0 -11.0 -10.0 ***** DAY ** ** ** ** ** ** ** 6 26 28 21 31 MAXIMUM AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** 33.6 32.0 27.1 20.2 10.5 ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** **** **** **** **** **** 31 20 8 0 0 **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** **** **** **** **** **** 0 0 0 0 0 **** TEMPERATURE RECORDS HIGHEST(C)***** ***** ***** ***** ***** ***** ***** 37.0 36.0 31.0 26.0 17.0 ***** DAY ** ** ** ** ** ** ** 17 9 11 9 3 DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** ***** ***** ***** ***** ***** 20.2 22.6 20.3 22.8 14.8 ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** ***** ***** ***** ***** ***** 23.5 20.7 17.0 8.8 3.1 ***** COOLING DEG. DAYS(BASE 21 0C)****** ****** ****** ****** ****** ****** ****** 77.5 24.5 0.0 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C)****** ****** ****** ****** ****** ****** ****** 0.0 4.0 39.5 269.0 462.5 ****** DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** 0.2 1.1 -0.9 -5.7 -4.4 ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** 4.78 5.13 4.36 3.21 3.37 ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** 6.43 6.93 5.91 4.36 4.57 ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** 26.38 21.16 14.75 7.64 2.89 ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** 23 30 34 43 67 *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** *** *** *** 38 49 54 70 86 *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** *** *** *** 13 16 18 21 41 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** 38 49 53 64 82 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** *** *** *** 15 19 23 25 51 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** 15 22 25 35 62 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. ****** ****** ****** ****** ****** ****** ****** 1.0 6.0 0.0 2.0 72.2 ****** DAYS WITH PRECIPITATION >=10 **** **** **** **** **** **** **** 0 0 0 0 2 **** DAYS WITH PRECIPITATION >= 5 **** **** **** **** **** **** **** 0 1 0 0 3 **** DAYS WITH PRECIPITATION >= 1 **** **** **** **** **** **** **** 1 1 0 2 7 **** DAYS WITH PRECIPITATION **** **** **** **** **** **** **** 1 1 1 2 9 **** GREATEST DAILY PRECIPITATION ****** ****** ****** ****** ****** ****** ****** 1.0 6.0 0.0 1.0 48.0 ****** DAY ** ** ** ** ** ** ** 26 15 ** 4 21 DAY WITH THUNDER STORM **** **** **** **** **** **** **** 0 1 2 0 0 **** DAYS WITH SNOW OR SLEET **** **** **** **** **** **** **** 0 0 0 0 3 **** DAYS WITH DUST **** **** **** **** **** **** **** 3 1 5 1 1 **** WIND DIRECTION (PREVAILING) *** *** *** *** *** *** *** 270 270 270 270 270 *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** **** **** **** 6.5 6.1 7.1 5.8 7.4 **** PREVAILING WIND PERCENT ***** ***** ***** ***** ***** ***** ***** 14.9 20.0 22.6 19.6 14.3 ***** CALMS PERCENT OF WIND ***** ***** ***** ***** ***** ***** ***** 29.4 25.0 30.2 45.0 53.1 ***** NO. OF WIND OBSERVATION **** **** **** **** **** **** **** 248 240 248 240 245 1221 VECTOR WIND DIRECTION (MEAN) *** *** *** *** *** *** *** 296 294 262 250 267 *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** **** **** **** 0.4 0.8 2.2 0.7 1.2 **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** ***** ***** ***** 7.5 15.1 45.8 21.2 35.3 ***** WIND SPEED (MEAN KNOTS) **** **** **** **** **** **** **** 5.3 5.3 4.8 3.3 3.4 **** FASTEST WIND DIRECTION *** *** *** *** *** *** *** 40 10 210 210 250 *** FASTEST WIND SPEED (KNOTS) *** *** *** *** *** *** *** 20 35 20 20 25 *** DAY ** ** ** ** ** ** ** 4 15 5 29 1 DAYS WITH SKY CLEAR (0-2)/8 **** **** **** **** **** **** **** 25 27 21 25 17 **** DAYS WITH P.CLOUDY (3-6)/8 **** **** **** **** **** **** **** 6 3 8 5 10 **** DAYS WITH CLOUDY (7-8)/8 **** **** **** **** **** **** **** 0 0 2 0 4 **** DAYS WITH VISIBILITY =< 2 KM **** **** **** **** **** **** **** 0 0 0 0 5 **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 843.6 847.9 849.4 850.9 847.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 850.6 852.7 855.6 857.3 854.6 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** 30- 6 24- 6 21- 6 11- 6 4- 6 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 837.5 841.8 843.8 837.2 837.7 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** 14-15 20-15 4-12 29-12 15-18 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1015.9 1020.9 1022.7 1024.3 1020.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1024.0 1026.5 1029.8 1031.8 1028.7 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** 30- 6 24- 6 21- 6 11- 6 4- 6 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1008.8 1013.8 1016.1 1008.4 1009.0 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** 14-15 20-15 4-12 29-12 15-18 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1003.6 1010.4 1015.0 1022.7 1022.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1013.5 1018.3 1025.1 1034.6 1033.9 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** 30- 3 24- 3 21- 6 21- 3 23- 6 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 996.4 1001.5 1006.4 1007.8 1009.1 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** 15-18 20-12 4-12 29-12 15-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 843.7 848.1 849.5 851.2 847.1 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 848.9 851.3 853.5 856.0 853.0 ****** DAY ** ** ** ** ** ** ** 30 24 10 19 23 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 839.3 844.0 845.6 840.8 839.3 ****** DAY ** ** ** ** ** ** ** 15 21 28 30 16 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1016.0 1021.1 1022.7 1024.7 1019.9 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1022.0 1024.8 1027.4 1030.3 1026.8 ****** DAY ** ** ** ** ** ** ** 30 24 10 19 23 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1010.9 1016.3 1018.2 1012.6 1010.9 ****** DAY ** ** ** ** ** ** ** 15 21 28 30 16 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1003.9 1010.1 1014.2 1021.8 1020.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1011.1 1015.6 1019.1 1029.2 1031.1 ****** DAY ** ** ** ** ** ** ** 30 24 21 21 23 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 997.8 1002.7 1009.2 1010.7 1010.4 ****** DAY ** ** ** ** ** ** ** 16 21 4 3 1 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 844.5 848.8 850.1 851.6 847.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 849.9 852.0 854.6 856.5 852.8 ****** DAY ** ** ** ** ** ** ** 30 24 21 19 23 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 840.4 845.2 846.2 840.7 839.8 ****** DAY ** ** ** ** ** ** ** 14 21 28 29 20 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1017.0 1021.9 1023.5 1025.2 1020.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1023.2 1025.6 1028.7 1030.9 1026.6 ****** DAY ** ** ** ** ** ** ** 30 24 21 19 23 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1012.2 1017.7 1018.9 1012.5 1011.5 ****** DAY ** ** ** ** ** ** ** 14 21 28 29 20 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1005.9 1013.0 1017.6 1025.5 1023.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1013.5 1018.3 1024.1 1034.6 1032.5 ****** DAY ** ** ** ** ** ** ** 30 24 21 21 23 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1000.5 1006.0 1013.2 1013.0 1013.2 ****** DAY ** ** ** ** ** ** ** 15 21 4 29 20 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 845.2 849.7 851.3 852.8 848.7 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 850.6 852.7 855.6 857.3 854.6 ****** DAY ** ** ** ** ** ** ** 30 24 21 11 4 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 840.8 846.3 847.4 841.6 841.0 ****** DAY ** ** ** ** ** ** ** 14 21 28 29 20 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1017.7 1023.0 1024.8 1026.5 1021.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1024.0 1026.5 1029.8 1031.8 1028.7 ****** DAY ** ** ** ** ** ** ** 30 24 21 11 4 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1012.6 1019.0 1020.3 1013.5 1012.8 ****** DAY ** ** ** ** ** ** ** 14 21 28 29 20 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1005.0 1012.4 1017.5 1025.8 1025.0 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1012.9 1018.1 1025.1 1033.5 1033.9 ****** DAY ** ** ** ** ** ** ** 30 24 21 25 23 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 999.4 1006.6 1012.2 1013.4 1013.0 ****** DAY ** ** ** ** ** ** ** 15 21 5 29 1 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 843.9 848.4 849.7 851.1 847.5 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 849.3 850.7 854.3 856.3 853.2 ****** DAY ** ** ** ** ** ** ** 29 24 21 19 4 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 839.8 845.2 845.4 840.5 840.5 ****** DAY ** ** ** ** ** ** ** 14 5 28 29 20 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1016.2 1021.5 1023.0 1024.6 1020.4 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1022.5 1024.1 1028.3 1030.6 1027.0 ****** DAY ** ** ** ** ** ** ** 29 24 21 19 4 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1011.5 1017.7 1018.0 1012.3 1012.3 ****** DAY ** ** ** ** ** ** ** 14 5 28 29 20 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1003.2 1009.9 1014.2 1021.5 1021.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1010.3 1014.6 1020.6 1029.9 1029.7 ****** DAY ** ** ** ** ** ** ** 30 24 21 19 23 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 998.3 1005.2 1008.6 1011.1 1012.9 ****** DAY ** ** ** ** ** ** ** 14 20 4 30 1 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 842.4 846.7 848.1 849.5 846.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 847.7 849.1 852.6 854.6 852.0 ****** DAY ** ** ** ** ** ** ** 29 23 21 13 22 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 838.3 842.3 843.8 837.2 838.9 ****** DAY ** ** ** ** ** ** ** 14 20 4 29 20 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1014.5 1019.5 1021.1 1022.7 1018.9 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1020.6 1022.3 1026.3 1028.7 1025.6 ****** DAY ** ** ** ** ** ** ** 29 23 21 13 22 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1009.7 1014.4 1016.1 1008.4 1010.4 ****** DAY ** ** ** ** ** ** ** 14 20 4 29 20 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1002.1 1008.4 1012.5 1019.8 1019.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1009.1 1012.8 1018.2 1026.9 1027.7 ****** DAY ** ** ** ** ** ** ** 31 24 21 19 22 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 996.4 1001.5 1006.4 1007.8 1010.5 ****** DAY ** ** ** ** ** ** ** 15 20 4 29 20 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 842.1 846.5 848.2 849.7 846.8 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 847.1 849.2 852.5 854.8 852.7 ****** DAY ** ** ** ** ** ** ** 29 23 21 13 22 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 837.5 841.8 844.3 839.4 839.1 ****** DAY ** ** ** ** ** ** ** 14 20 3 29 15 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1014.1 1019.3 1021.2 1023.0 1019.6 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1019.9 1022.4 1026.2 1028.9 1026.5 ****** DAY ** ** ** ** ** ** ** 29 23 21 13 22 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1008.8 1013.8 1016.7 1011.0 1010.6 ****** DAY ** ** ** ** ** ** ** 14 20 3 29 15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1002.8 1010.2 1015.2 1023.2 1022.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1009.8 1015.1 1021.1 1031.4 1030.0 ****** DAY ** ** ** ** ** ** ** 31 24 21 19 22 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 997.2 1003.9 1009.3 1011.0 1010.8 ****** DAY ** ** ** ** ** ** ** 14 20 3 29 15 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 843.5 847.6 849.2 850.6 847.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 848.9 851.0 853.1 855.7 853.1 ****** DAY ** ** ** ** ** ** ** 29 23 9 13 22 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 838.8 843.4 844.7 840.6 837.7 ****** DAY ** ** ** ** ** ** ** 14 20 28 30 15 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1015.7 1020.6 1022.4 1024.0 1020.3 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1022.0 1024.5 1026.9 1029.9 1026.9 ****** DAY ** ** ** ** ** ** ** 29 23 9 13 22 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1010.3 1015.6 1017.2 1012.4 1009.0 ****** DAY ** ** ** ** ** ** ** 14 20 28 30 15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1003.0 1010.0 1015.2 1023.3 1023.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1011.1 1015.7 1021.0 1032.2 1031.6 ****** DAY ** ** ** ** ** ** ** 29 23 21 20 22 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 996.4 1003.4 1010.6 1012.0 1009.1 ****** DAY ** ** ** ** ** ** ** 15 20 4 29 15 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 843.8 847.8 849.4 850.8 847.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 848.9 851.0 853.5 855.7 853.4 ****** DAY ** ** ** ** ** ** ** 29 23 9 13 22 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 839.3 843.7 845.8 840.6 837.7 ****** DAY ** ** ** ** ** ** ** 13 20 27 30 15 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1016.1 1020.8 1022.7 1024.2 1020.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1022.0 1024.5 1027.4 1029.9 1027.3 ****** DAY ** ** ** ** ** ** ** 29 23 9 13 22 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1010.9 1016.0 1018.4 1012.4 1009.0 ****** DAY ** ** ** ** ** ** ** 13 20 27 30 15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1003.0 1009.2 1014.0 1021.2 1021.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1010.6 1014.7 1019.5 1029.4 1030.6 ****** DAY ** ** ** ** ** ** ** 29 23 20 20 22 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 997.2 1002.3 1008.8 1009.5 1009.1 ****** DAY ** ** ** ** ** ** ** 15 20 3 30 15 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.0 2.7 8.5 15.7 20.6 26.2 26.8 26.8 21.5 15.2 9.1 3.6 14.8 MINIMUN AIR TEMPERATURE (C) -6.2 -3.9 0.7 6.9 10.0 14.5 14.5 14.7 9.5 4.5 0.9 -3.1 5.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 1 0 0 0 0 0 0 1 DAYS WITH MINIMUM TEMP. <=-4 23 13 5 0 0 0 0 0 0 0 3 14 58 DAYS WITH FREEZING MIN.<= 0 29 26 15 1 0 0 0 0 0 3 15 26 115 TEMPERATURE RECORDS LOWEST(C) -12.0 -13.0 -8.0 -1.0 5.0 10.0 10.0 11.0 3.0 -2.0 -7.0 -9.0 -13.0 DAY 9 2 5 18 6 3 1 29 21 31 27 13 MAXIMUM AIR TEMPERATURE (C) 10.0 10.8 16.9 24.6 29.6 35.8 36.6 37.1 32.5 25.9 19.3 13.3 24.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 16 30 31 31 29 8 0 0 145 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 15.0 15.0 26.0 29.0 34.0 41.0 39.0 39.0 36.0 33.0 23.0 19.0 41.0 DAY 22 23 31 21 23 22 11 7 8 6 12 6 DIF. BETWEEN (MAX.-MIN.) (C) 16.2 14.7 16.2 17.7 19.6 21.3 22.1 22.4 23.0 21.4 18.4 16.4 19.2 MEAN DAILY TEMP. (MDT) (C) 1.9 3.4 8.8 15.7 19.8 25.2 25.6 25.9 21.0 15.2 10.1 5.1 14.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 15.5 125.0 141.5 152.0 22.0 1.5 0.0 0.0 457.5 HEATING DEG. DAYS(BASE 18 0C) 499.0 423.0 285.0 72.5 11.5 0.0 0.0 0.0 2.5 107.5 236.5 400.5 2038.0 DEWPOINT (MEAN C) -6.2 -3.6 -2.6 -2.3 -1.3 -0.1 -1.5 0.5 -2.6 -1.8 -1.8 -6.0 -2.4 MIXING RATIO (G/KG) 2.98 3.65 4.02 4.22 4.36 4.67 4.20 4.83 3.89 4.03 4.10 3.05 4.00 VAPOUR PRESSURE (HPA) 4.02 4.92 5.43 5.69 5.87 6.28 5.65 6.49 5.25 5.46 5.56 4.13 5.40 SATURATION DEF. (HPA) 3.04 3.01 6.78 13.49 20.44 30.49 32.66 32.02 23.08 13.93 7.01 4.49 15.87 RELATIVE HUMIDITY (MEAN %) 63 67 51 35 28 21 18 20 23 35 51 54 39 RELATIVE HUMIDITY (MAX. %) 85 89 81 60 50 36 34 36 40 56 75 76 60 RELATIVE HUMIDITY (MIN. %) 34 41 25 15 12 10 9 10 10 17 27 29 20 RELATIVE HUMIDITY (MEAN% 03UTC) 83 86 78 57 47 34 33 35 40 55 73 71 58 RELATIVE HUMIDITY (MEAN% 09UTC) 44 53 35 22 16 13 11 12 13 22 34 37 26 RELATIVE HUMIDITY (MEAN% 15UTC) 53 55 34 21 15 12 10 13 15 25 44 50 29 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 10.7 44.3 13.3 14.3 1.6 0.0 0.0 0.0 0.0 0.4 6.4 13.0 104.0 DAYS WITH PRECIPITATION >=10 0 1 0 1 0 0 0 0 0 0 0 1 3 DAYS WITH PRECIPITATION >= 5 0 4 2 1 0 0 0 0 0 0 0 1 8 DAYS WITH PRECIPITATION >= 1 3 5 3 4 1 0 0 0 0 0 3 3 22 DAYS WITH PRECIPITATION 5 6 10 4 2 0 0 0 0 1 3 4 35 GREATEST DAILY PRECIPITATION 4.0 22.0 5.0 10.3 1.6 0.0 0.0 0.0 0.0 0.4 3.4 10.0 22.0 DAY 17 25 19 4 5 ** ** ** ** 30 24 18 DAY WITH THUNDER STORM 0 0 0 4 0 0 0 0 1 0 0 0 5 DAYS WITH SNOW OR SLEET 2 2 1 0 0 0 0 0 0 0 0 0 5 DAYS WITH DUST 2 2 10 14 16 6 9 1 5 5 6 5 81 WIND DIRECTION (PREVAILING) 270 270 270 225 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 7.6 7.7 8.5 11.7 8.4 7.4 6.3 5.9 6.9 5.3 6.5 7.2 7.3 PREVAILING WIND PERCENT 15.7 18.1 21.0 22.9 30.6 24.6 16.5 19.8 26.3 16.9 21.3 17.8 20.7 CALMS PERCENT OF WIND 51.6 55.6 37.5 25.8 17.3 14.2 19.4 23.0 20.0 20.2 37.1 28.7 29.1 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 247 2927 VECTOR WIND DIRECTION (MEAN) 270 276 247 240 257 273 163 198 240 247 259 262 249 VECTOR WIND MAGNITUDE(KNOTS) 1.6 1.9 3.2 4.5 4.4 2.1 1.0 1.5 2.3 2.0 2.0 1.1 2.1 WIND STEADINESES (MEAN %) 40.0 59.4 58.2 63.4 62.0 30.4 17.5 28.8 40.4 39.2 45.5 22.4 38.9 WIND SPEED (MEAN KNOTS) 4.0 3.2 5.5 7.1 7.1 6.9 5.7 5.2 5.7 5.1 4.4 4.9 5.4 FASTEST WIND DIRECTION 210 250 230 210 240 10 70 40 50 190 300 210 250 FASTEST WIND SPEED (KNOTS) 20 25 22 24 22 20 20 16 18 14 25 25 25 DAY 6 18 16 30 24 23 8 7 9 5 23 12 DAYS WITH SKY CLEAR (0-2)/8 18 13 11 13 21 29 28 31 30 26 16 18 254 DAYS WITH P.CLOUDY (3-6)/8 10 12 14 10 7 1 3 0 0 5 12 10 84 DAYS WITH CLOUDY (7-8)/8 3 4 6 7 3 0 0 0 0 0 2 3 28 DAYS WITH VISIBILITY =< 2 KM 3 3 0 0 0 0 0 0 0 0 3 2 11 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 845.6 845.0 845.2 845.5 845.1 841.9 842.4 841.9 845.9 847.7 849.5 847.8 845.3 MAX. QFE PRESSURE IN HPA 852.1 852.6 857.4 853.9 849.8 850.0 848.3 849.9 852.2 853.2 859.6 855.3 859.6 DAY-HOUR 9- 6 1- 6 28- 6 21- 3 11- 0 2- 6 18- 6 31- 6 26- 6 23- 6 27- 9 4- 6 MIN. QFE PRESSURE IN HPA 836.9 833.8 832.6 837.8 840.9 835.9 837.2 831.6 840.1 842.1 842.8 834.5 831.6 DAY-HOUR 24- 3 25- 9 2-12 16- 0 28-15 17-15 31-15 7- 6 19-15 11-15 16-12 11-15 MEAN QNH PRESSURE IN HPA 1018.2 1017.5 1017.7 1018.1 1017.6 1013.9 1014.5 1013.9 1018.6 1020.6 1022.8 1020.7 1017.8 MAX. QNH PRESSURE IN HPA 1025.8 1026.3 1031.9 1027.8 1023.1 1023.3 1021.3 1023.2 1025.9 1027.0 1034.5 1029.5 1034.5 DAY-HOUR 9- 6 1- 6 28- 6 21- 3 11- 0 2- 6 18- 6 31- 6 26- 6 23- 6 27- 9 4- 6 MIN. QNH PRESSURE IN HPA 1008.1 1004.5 1003.1 1009.1 1012.7 1006.9 1008.4 1001.9 1011.8 1014.1 1014.9 1005.3 1001.9 DAY-HOUR 24- 3 25- 9 2-12 16- 0 28-15 17-15 31-15 7- 6 19-15 11-15 16-12 11-15 MEAN QFF PRESSURE IN HPA 1020.8 1018.8 1015.2 1011.0 1007.6 1000.4 1000.7 1000.0 1008.0 1013.9 1020.0 1021.6 1011.5 MAX. QFF PRESSURE IN HPA 1031.7 1032.6 1027.8 1022.2 1016.8 1011.8 1007.1 1011.9 1017.4 1026.4 1034.7 1032.6 1034.7 DAY-HOUR 9- 6 1- 3 5- 3 21- 3 1- 3 2- 6 18- 3 31- 3 29- 3 31- 3 27- 9 21- 6 MIN. QFF PRESSURE IN HPA 1006.1 1002.0 1000.2 999.5 1001.0 992.0 994.0 987.1 1000.8 1004.9 1009.8 1005.1 987.1 DAY-HOUR 24- 0 25- 9 18-21 15-21 29-15 22-15 31-12 7- 6 4-21 4-12 16-21 11-18 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 845.5 845.2 845.1 845.7 845.3 842.2 842.9 842.1 846.2 847.8 849.5 847.8 845.4 MAX. QFE PRESSURE IN HPA 849.8 850.3 849.9 853.0 849.8 847.8 846.0 848.1 850.3 852.1 854.3 854.3 854.3 DAY 4 22 28 21 11 2 18 31 29 31 3 21 MIN. QFE PRESSURE IN HPA 837.3 836.4 834.0 837.8 842.3 838.0 839.7 838.5 842.1 844.0 844.7 839.6 834.0 DAY 24 25 3 16 29 18 3 8 20 12 17 12 MEAN QNH PRESSURE IN HPA 1018.0 1017.7 1017.6 1018.3 1017.8 1014.2 1015.0 1014.2 1018.9 1020.8 1022.8 1020.8 1018.0 MAX. QNH PRESSURE IN HPA 1023.1 1023.7 1023.2 1026.8 1023.1 1020.8 1018.7 1021.1 1023.7 1025.8 1028.3 1028.3 1028.3 DAY 4 22 28 21 11 2 18 31 29 31 3 21 MIN. QNH PRESSURE IN HPA 1008.5 1007.5 1004.7 1009.1 1014.4 1009.4 1011.3 1009.9 1014.1 1016.3 1017.2 1011.2 1004.7 DAY 24 25 3 16 29 18 3 8 20 12 17 12 MEAN QFF PRESSURE IN HPA 1019.7 1018.3 1014.6 1010.9 1007.9 1001.0 1001.4 1000.1 1008.0 1013.1 1019.0 1020.3 1011.2 MAX. QFF PRESSURE IN HPA 1027.2 1029.0 1026.2 1019.4 1014.3 1009.3 1005.0 1009.0 1014.7 1023.5 1026.7 1030.6 1030.6 DAY 9 2 5 20 11 3 16 31 29 31 27 21 MIN. QFF PRESSURE IN HPA 1006.1 1007.1 1000.6 1000.8 1001.9 995.0 996.6 994.3 1003.0 1007.4 1011.6 1008.9 994.3 DAY 24 25 19 16 29 22 31 8 20 5 17 12 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 845.7 845.3 845.6 846.2 845.8 843.2 843.5 842.9 846.9 848.5 849.9 848.2 846.0 MAX. QFE PRESSURE IN HPA 850.2 851.7 850.1 853.9 848.4 849.7 847.6 848.6 851.2 852.4 855.0 853.5 855.0 DAY 9 1 28 21 20 6 18 31 29 31 3 21 MIN. QFE PRESSURE IN HPA 836.9 835.5 834.7 838.9 843.5 838.5 840.6 838.9 843.2 845.0 844.2 840.0 834.7 DAY 24 25 19 16 29 17 31 7 14 12 29 11 MEAN QNH PRESSURE IN HPA 1018.3 1017.9 1018.2 1018.9 1018.4 1015.4 1015.7 1015.1 1019.7 1021.5 1023.2 1021.2 1018.6 MAX. QNH PRESSURE IN HPA 1023.5 1025.3 1023.4 1027.8 1021.5 1023.0 1020.5 1021.7 1024.7 1026.1 1029.1 1027.4 1029.1 DAY 9 1 28 21 20 6 18 31 29 31 3 21 MIN. QNH PRESSURE IN HPA 1008.1 1006.5 1005.5 1010.4 1015.8 1009.9 1012.4 1010.4 1015.4 1017.5 1016.6 1011.7 1005.5 DAY 24 25 19 16 29 17 31 7 14 12 29 11 MEAN QFF PRESSURE IN HPA 1022.1 1020.3 1016.7 1012.6 1009.2 1002.5 1003.0 1002.2 1010.7 1016.9 1022.1 1023.4 1013.5 MAX. QFF PRESSURE IN HPA 1030.1 1032.6 1027.8 1022.2 1016.8 1011.1 1007.1 1011.9 1017.4 1026.4 1031.0 1032.1 1032.6 DAY 9 1 5 21 1 2 18 31 29 31 27 21 MIN. QFF PRESSURE IN HPA 1007.5 1007.5 1000.5 1003.9 1003.7 996.5 998.8 996.8 1005.5 1011.5 1013.4 1013.9 996.5 DAY 24 25 19 16 29 22 31 10 14 5 29 12 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 847.2 846.3 846.8 846.9 846.7 843.5 844.0 843.4 847.9 849.5 851.1 849.5 846.9 MAX. QFE PRESSURE IN HPA 852.1 852.6 857.4 853.6 849.5 850.0 848.3 849.9 852.2 853.2 855.9 855.3 857.4 DAY 9 1 28 21 26 2 18 31 26 23 3 4 MIN. QFE PRESSURE IN HPA 838.2 834.7 835.0 841.0 844.3 839.3 840.5 831.6 844.3 845.7 846.4 841.1 831.6 DAY 24 25 2 16 29 17 31 7 14 12 16 11 MEAN QNH PRESSURE IN HPA 1020.1 1019.1 1019.5 1019.7 1019.5 1015.8 1016.3 1015.6 1020.9 1022.8 1024.6 1022.7 1019.7 MAX. QNH PRESSURE IN HPA 1025.8 1026.3 1031.9 1027.5 1022.7 1023.3 1021.3 1023.2 1025.9 1027.0 1030.2 1029.5 1031.9 DAY 9 1 28 21 26 2 18 31 26 23 3 4 MIN. QNH PRESSURE IN HPA 1009.6 1005.5 1005.9 1012.8 1016.7 1010.9 1012.3 1001.9 1016.7 1018.3 1019.1 1013.0 1001.9 DAY 24 25 2 16 29 17 31 7 14 12 16 11 MEAN QFF PRESSURE IN HPA 1023.6 1021.1 1017.4 1012.5 1009.2 1002.0 1002.0 1001.6 1010.2 1016.0 1022.4 1024.7 1013.6 MAX. QFF PRESSURE IN HPA 1031.7 1031.3 1027.2 1021.7 1014.2 1011.8 1006.6 1011.9 1017.4 1025.9 1030.9 1032.6 1032.6 DAY 9 3 5 20 1 2 18 31 29 31 27 21 MIN. QFF PRESSURE IN HPA 1010.4 1005.6 1003.5 1004.4 1005.3 996.2 998.2 987.1 1005.2 1009.9 1014.9 1013.8 987.1 DAY 24 25 19 14 29 22 31 7 9 5 16 12 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 846.0 845.4 845.6 846.1 845.5 842.4 842.9 842.5 846.5 847.9 849.8 847.9 845.7 MAX. QFE PRESSURE IN HPA 851.0 851.5 850.4 852.7 848.8 848.5 847.1 849.0 850.6 851.7 859.6 854.0 859.6 DAY 9 1 22 1 26 2 18 31 26 23 27 4 MIN. QFE PRESSURE IN HPA 838.3 833.8 833.0 840.3 843.6 838.0 839.5 838.5 843.1 844.0 845.0 838.2 833.0 DAY 24 25 2 16 29 22 31 7 14 12 16 11 MEAN QNH PRESSURE IN HPA 1018.7 1018.0 1018.2 1018.7 1018.1 1014.5 1015.0 1014.5 1019.3 1020.9 1023.0 1020.9 1018.3 MAX. QNH PRESSURE IN HPA 1024.5 1025.1 1023.8 1026.5 1021.9 1021.6 1019.9 1022.1 1024.0 1025.3 1034.5 1028.0 1034.5 DAY 9 1 22 1 26 2 18 31 26 23 27 4 MIN. QNH PRESSURE IN HPA 1009.7 1004.5 1003.5 1012.0 1015.9 1009.4 1011.1 1009.9 1015.3 1016.3 1017.5 1009.6 1003.5 DAY 24 25 2 16 29 22 31 7 14 12 16 11 MEAN QFF PRESSURE IN HPA 1020.4 1018.6 1015.0 1011.0 1007.7 1000.6 1000.7 999.9 1007.6 1012.9 1019.1 1020.7 1011.2 MAX. QFF PRESSURE IN HPA 1027.1 1029.9 1023.3 1020.7 1011.9 1010.3 1005.8 1009.2 1014.2 1021.8 1034.7 1029.2 1034.7 DAY 9 1 5 20 1 2 18 31 26 31 27 20 MIN. QFF PRESSURE IN HPA 1009.3 1002.0 1000.8 1003.3 1003.9 993.3 996.1 995.0 1002.8 1007.6 1011.6 1009.8 993.3 DAY 24 25 2 16 31 22 31 8 15 5 17 11 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 844.3 843.7 843.9 844.4 843.9 840.8 841.3 840.8 844.7 846.0 848.1 846.4 844.0 MAX. QFE PRESSURE IN HPA 850.2 849.5 848.9 851.0 847.0 846.3 845.5 847.0 848.9 850.1 852.9 852.5 852.9 DAY 9 1 14 20 26 2 18 31 28 30 2 20 MIN. QFE PRESSURE IN HPA 837.9 834.1 832.6 838.9 841.4 836.8 837.7 836.4 840.8 842.1 842.8 835.3 832.6 DAY 24 25 2 16 28 17 31 7 19 25 16 11 MEAN QNH PRESSURE IN HPA 1016.7 1016.0 1016.2 1016.7 1016.2 1012.6 1013.2 1012.6 1017.1 1018.6 1021.1 1019.2 1016.4 MAX. QNH PRESSURE IN HPA 1023.5 1022.7 1022.0 1024.5 1019.8 1019.0 1018.1 1019.8 1022.0 1023.4 1026.7 1026.2 1026.7 DAY 9 1 14 20 26 2 18 31 28 30 2 20 MIN. QNH PRESSURE IN HPA 1009.2 1004.8 1003.1 1010.4 1013.3 1008.0 1009.0 1007.5 1012.6 1014.1 1014.9 1006.2 1003.1 DAY 24 25 2 16 28 17 31 7 19 25 16 11 MEAN QFF PRESSURE IN HPA 1018.3 1016.4 1013.0 1009.5 1006.2 999.2 999.5 998.4 1006.1 1011.0 1017.2 1018.6 1009.5 MAX. QFF PRESSURE IN HPA 1027.0 1027.8 1022.4 1019.3 1011.1 1006.7 1004.3 1007.9 1012.6 1019.0 1025.8 1028.1 1028.1 DAY 9 1 4 20 5 2 18 31 25 31 26 20 MIN. QFF PRESSURE IN HPA 1007.1 1002.4 1000.8 1002.4 1001.1 993.2 994.0 992.7 1001.4 1004.9 1010.1 1006.0 992.7 DAY 23 25 2 16 28 22 31 7 19 4 16 11 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 844.8 844.0 844.1 844.1 843.5 840.2 840.7 840.2 844.3 846.2 848.6 846.8 844.0 MAX. QFE PRESSURE IN HPA 850.6 849.8 848.8 850.8 846.4 846.1 844.7 846.6 848.7 850.9 853.3 852.8 853.3 DAY 9 1 22 20 26 2 18 30 28 30 2 20 MIN. QFE PRESSURE IN HPA 838.5 834.7 832.9 838.9 840.9 835.9 837.2 836.2 840.1 842.1 843.1 834.5 832.9 DAY 16 11 2 16 28 17 31 7 19 11 15 11 MEAN QNH PRESSURE IN HPA 1017.3 1016.4 1016.5 1016.5 1015.7 1011.9 1012.5 1011.9 1016.7 1018.9 1021.7 1019.6 1016.3 MAX. QNH PRESSURE IN HPA 1024.0 1023.1 1021.9 1024.2 1019.1 1018.8 1017.2 1019.4 1021.8 1024.4 1027.2 1026.6 1027.2 DAY 9 1 22 20 26 2 18 30 28 30 2 20 MIN. QNH PRESSURE IN HPA 1009.9 1005.5 1003.4 1010.4 1012.7 1006.9 1008.4 1007.3 1011.8 1014.1 1015.3 1005.3 1003.4 DAY 16 11 2 16 28 17 31 7 19 11 15 11 MEAN QFF PRESSURE IN HPA 1020.9 1018.5 1014.9 1010.2 1006.3 998.9 999.6 999.0 1007.6 1014.3 1020.4 1021.7 1011.0 MAX. QFF PRESSURE IN HPA 1029.8 1030.6 1025.0 1019.3 1011.7 1007.1 1004.0 1009.5 1014.5 1021.7 1030.2 1030.3 1030.6 DAY 9 1 4 20 5 2 18 30 25 30 26 20 MIN. QFF PRESSURE IN HPA 1011.0 1004.1 1003.0 1003.5 1001.0 992.0 994.7 992.7 1002.6 1008.4 1013.3 1006.1 992.0 DAY 23 11 18 25 29 22 31 10 13 4 16 11 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 845.7 845.0 845.3 845.5 844.8 841.4 841.9 841.4 845.5 847.7 849.7 847.8 845.1 MAX. QFE PRESSURE IN HPA 850.9 850.3 850.2 852.3 847.8 847.2 845.6 848.3 849.8 852.0 854.3 854.7 854.7 DAY 9 21 14 20 26 1 17 30 25 30 2 20 MIN. QFE PRESSURE IN HPA 838.0 837.3 834.7 839.2 841.4 837.6 838.4 837.0 841.2 843.4 844.2 834.7 834.7 DAY 16 11 18 15 28 17 31 7 19 29 15 11 MEAN QNH PRESSURE IN HPA 1018.3 1017.5 1017.8 1018.1 1017.3 1013.3 1013.9 1013.4 1018.1 1020.6 1022.9 1020.7 1017.7 MAX. QNH PRESSURE IN HPA 1024.4 1023.7 1023.5 1026.0 1020.8 1020.1 1018.2 1021.3 1023.1 1025.6 1028.3 1028.8 1028.8 DAY 9 21 14 20 26 1 17 30 25 30 2 20 MIN. QNH PRESSURE IN HPA 1009.4 1008.5 1005.5 1010.8 1013.3 1008.9 1009.8 1008.2 1013.1 1015.6 1016.6 1005.5 1005.5 DAY 16 11 18 15 28 17 31 7 19 29 15 11 MEAN QFF PRESSURE IN HPA 1021.7 1019.4 1015.6 1010.9 1007.0 999.5 999.7 999.4 1007.5 1014.0 1020.7 1022.7 1011.5 MAX. QFF PRESSURE IN HPA 1030.1 1029.9 1026.8 1019.0 1013.4 1008.1 1003.7 1009.5 1015.2 1024.0 1029.7 1032.1 1032.1 DAY 9 2 4 20 5 1 18 30 28 30 26 20 MIN. QFF PRESSURE IN HPA 1010.8 1008.2 1001.0 1002.7 1001.7 993.8 996.2 992.8 1001.5 1008.3 1011.8 1005.1 992.8 DAY 23 25 18 15 28 22 31 7 19 4 16 11 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 845.6 845.1 845.5 845.4 845.3 841.8 842.4 842.1 845.6 848.0 849.8 847.8 845.4 MAX. QFE PRESSURE IN HPA 851.0 850.3 851.0 853.0 848.7 847.7 846.0 848.7 850.7 852.1 854.6 854.5 854.6 DAY 9 21 14 20 26 1 17 30 25 30 12 20 MIN. QFE PRESSURE IN HPA 838.3 836.1 835.0 838.0 841.8 837.6 838.7 837.0 841.6 844.3 844.5 838.0 835.0 DAY 23 11 2 15 28 17 2 7 4 11 16 11 MEAN QNH PRESSURE IN HPA 1018.2 1017.6 1018.1 1018.0 1017.9 1013.8 1014.5 1014.1 1018.2 1021.0 1023.1 1020.7 1017.9 MAX. QNH PRESSURE IN HPA 1024.5 1023.7 1024.5 1026.8 1021.8 1020.6 1018.7 1021.8 1024.1 1025.8 1028.7 1028.5 1028.7 DAY 9 21 14 20 26 1 17 30 25 30 12 20 MIN. QNH PRESSURE IN HPA 1009.7 1007.1 1005.9 1009.4 1013.8 1008.9 1010.2 1008.2 1013.5 1016.7 1016.9 1009.4 1005.9 DAY 23 11 2 15 28 17 2 7 4 11 16 11 MEAN QFF PRESSURE IN HPA 1019.9 1018.2 1014.8 1010.2 1007.3 999.9 1000.2 999.5 1006.6 1013.1 1019.2 1020.6 1010.8 MAX. QFF PRESSURE IN HPA 1027.2 1029.2 1026.1 1019.8 1011.4 1009.7 1004.6 1009.0 1014.5 1023.8 1029.4 1031.6 1031.6 DAY 9 1 4 20 5 1 17 30 25 30 26 20 MIN. QFF PRESSURE IN HPA 1007.2 1007.8 1000.2 999.5 1001.5 994.8 994.7 992.1 1000.8 1007.7 1009.8 1007.6 992.1 DAY 23 11 18 15 28 21 31 7 4 4 16 11 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION SHARGH ESFAHAN (40802) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 40 N LONGITUDE 51 52 E DATA PROCESSING CENTER ELEVATION 1543.0 M MEANS AND EXTREMES FOR THE YEAR 1981 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.6 4.7 10.7 15.1 19.7 24.5 27.6 26.9 20.2 13.7 8.8 4.7 14.9 MINIMUN AIR TEMPERATURE (C) -5.8 -2.5 2.0 5.6 9.3 13.6 16.4 14.8 8.2 4.0 -0.1 -3.5 5.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 2 0 0 0 0 0 2 DAYS WITH MINIMUM TEMP. <=-4 24 11 3 0 0 0 0 0 0 0 5 21 64 DAYS WITH FREEZING MIN.<= 0 28 21 13 3 0 0 0 0 0 3 15 27 110 TEMPERATURE RECORDS LOWEST(C) -11.0 -11.0 -7.0 -3.0 3.0 8.0 10.0 10.0 2.0 -1.0 -8.0 -8.0 -11.0 DAY 4 5 6 3 3 6 24 4 24 18 24 5 MAXIMUM AIR TEMPERATURE (C) 11.4 13.1 20.0 24.4 29.4 33.7 36.8 37.0 31.4 24.0 19.9 15.4 24.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 3 17 29 31 31 24 0 0 0 135 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 17.0 21.0 25.0 31.0 35.0 39.0 40.0 40.0 36.0 29.0 25.0 19.0 40.0 DAY 25 8 20 22 22 30 3 13 19 5 13 7 DIF. BETWEEN (MAX.-MIN.) (C) 17.2 15.6 18.0 18.8 20.1 20.1 20.4 22.2 23.2 20.0 20.0 18.9 19.5 MEAN DAILY TEMP. (MDT) (C) 2.8 5.3 11.0 15.0 19.4 23.6 26.6 25.9 19.8 14.0 9.9 6.0 14.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 17.5 84.0 173.5 152.5 18.5 0.0 0.0 0.0 446.0 HEATING DEG. DAYS(BASE 18 0C) 472.0 356.0 217.0 99.5 22.5 0.0 0.0 0.0 21.5 125.0 244.0 373.5 1931.0 DEWPOINT (MEAN C) -5.9 -4.9 -4.3 -3.6 -1.2 0.9 2.9 1.0 -3.1 0.1 -4.7 -6.7 -2.5 MIXING RATIO (G/KG) 3.01 3.40 3.46 3.78 4.39 5.20 5.85 5.02 3.71 4.69 3.37 2.83 4.06 VAPOUR PRESSURE (HPA) 4.08 4.59 4.67 5.10 5.91 6.98 7.83 6.74 5.03 6.37 4.57 3.84 5.48 SATURATION DEF. (HPA) 3.41 4.53 9.29 13.62 19.20 26.03 31.81 31.70 21.51 10.73 7.92 5.46 15.43 RELATIVE HUMIDITY (MEAN %) 61 55 39 32 29 25 23 21 23 43 42 47 37 RELATIVE HUMIDITY (MAX. %) 83 78 65 57 51 43 39 35 41 65 64 68 57 RELATIVE HUMIDITY (MIN. %) 34 31 18 14 12 12 13 10 11 24 21 26 19 RELATIVE HUMIDITY (MEAN% 03UTC) 81 74 63 54 47 41 37 35 39 63 61 66 55 RELATIVE HUMIDITY (MEAN% 09UTC) 43 40 25 20 16 17 15 13 14 28 27 35 24 RELATIVE HUMIDITY (MEAN% 15UTC) 52 45 25 23 18 15 14 13 18 36 37 40 28 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 8.6 25.3 4.4 5.0 1.1 1.1 2.0 0.0 0.0 5.8 4.0 3.0 60.3 DAYS WITH PRECIPITATION >=10 0 1 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH PRECIPITATION >= 5 0 2 0 1 0 0 0 0 0 1 0 0 4 DAYS WITH PRECIPITATION >= 1 3 4 1 1 1 1 1 0 0 1 1 1 15 DAYS WITH PRECIPITATION 4 6 6 2 3 2 1 0 0 6 2 2 34 GREATEST DAILY PRECIPITATION 4.6 11.0 4.0 5.0 1.0 1.0 2.0 0.0 0.0 5.0 4.0 3.0 11.0 DAY 12 11 28 17 6