STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1984 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** 18.8 22.9 27.7 25.1 22.7 15.3 9.7 1.7 ***** MINIMUN AIR TEMPERATURE (C) ***** ***** ***** ***** 11.2 16.3 20.7 20.3 17.2 11.0 7.3 -1.2 ***** DAYS WITH MINIMUM TEMP. >=21 **** **** **** **** 0 3 17 13 0 0 0 0 **** DAYS WITH MINIMUM TEMP. <=-4 **** **** **** **** 0 0 0 0 0 0 0 5 **** DAYS WITH FREEZING MIN.<= 0 **** **** **** **** 0 0 0 0 0 0 0 26 **** TEMPERATURE RECORDS LOWEST(C) ***** ***** ***** ***** 5.0 9.0 15.5 15.5 14.5 4.0 0.5 -5.0 ***** DAY ** ** ** ** 7 16 9 31 22 21 30 6 MAXIMUM AIR TEMPERATURE (C) ***** ***** ***** ***** 23.2 29.7 35.0 30.5 28.8 20.6 12.9 5.5 ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** **** **** 1 17 30 22 8 0 0 0 **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** **** **** 0 0 0 0 0 0 0 0 **** TEMPERATURE RECORDS HIGHEST(C)***** ***** ***** ***** 31.0 36.0 39.5 34.0 32.0 27.0 18.5 15.0 ***** DAY ** ** ** ** 26 10 21 1 13 1 25 13 DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** ***** ***** 12.0 13.4 14.3 10.2 11.6 9.6 5.6 6.7 ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** ***** ***** 17.2 23.0 27.8 25.4 23.0 15.8 10.1 2.1 ***** COOLING DEG. DAYS(BASE 21 0C)****** ****** ****** ****** 4.3 67.3 212.2 140.0 56.0 0.3 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C)****** ****** ****** ****** 60.8 1.0 0.0 0.0 0.0 87.8 236.5 491.4 ****** DEWPOINT (MEAN C) ***** ***** ***** ***** 12.0 15.0 18.2 17.3 17.1 11.4 7.5 -1.0 ***** MIXING RATIO (G/KG) ****** ****** ****** ****** 8.93 10.93 13.40 12.75 12.35 8.61 6.57 3.58 ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** 14.20 17.30 21.07 20.07 19.59 13.81 10.58 5.84 ****** SATURATION DEF. (HPA) ****** ****** ****** ****** 8.68 11.82 17.19 12.62 8.65 4.41 1.75 1.20 ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** 68 64 59 64 73 79 87 85 *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** 91 88 81 84 90 94 96 96 *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** 52 43 39 48 52 60 73 66 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** 89 82 78 75 88 89 93 91 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** 59 50 46 53 60 69 79 75 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** 57 49 43 53 59 74 87 86 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. ****** ****** ****** ****** 123.2 0.9 0.0 16.0 2.1 36.5 40.8 22.7 ****** DAYS WITH PRECIPITATION >=10 **** **** **** **** 4 0 0 1 0 1 0 0 **** DAYS WITH PRECIPITATION >= 5 **** **** **** **** 4 0 0 1 0 2 3 2 **** DAYS WITH PRECIPITATION >= 1 **** **** **** **** 6 0 0 2 1 5 10 6 **** DAYS WITH PRECIPITATION **** **** **** **** 8 3 2 5 2 9 14 9 **** GREATEST DAILY PRECIPITATION ****** ****** ****** ****** 47.0 0.9 0.0 11.0 1.4 19.0 9.0 8.1 ****** DAY ** ** ** ** 6 7 ** 11 8 18 13 25 DAY WITH THUNDER STORM **** **** **** **** 3 2 1 2 0 0 0 0 **** DAYS WITH SNOW OR SLEET **** **** **** **** 0 0 0 0 0 0 1 6 **** DAYS WITH DUST **** **** **** **** 0 1 0 0 0 0 0 0 **** WIND DIRECTION (PREVAILING) *** *** *** *** 270 135 135 135 135 135 135 135 *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** 7.7 9.3 8.5 10.8 6.3 8.2 7.4 5.7 **** PREVAILING WIND PERCENT ***** ***** ***** ***** 11.0 19.2 30.9 24.3 36.3 17.7 12.9 9.3 ***** CALMS PERCENT OF WIND ***** ***** ***** ***** 54.7 60.0 40.7 47.4 49.2 54.0 70.0 69.4 ***** NO. OF WIND OBSERVATION **** **** **** **** 172 240 246 247 240 248 240 248 1881 VECTOR WIND DIRECTION (MEAN) *** *** *** *** 184 147 146 150 147 168 166 191 *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** 0.6 2.7 3.9 3.6 2.9 2.1 1.6 1.1 **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** 18.8 73.0 78.0 78.3 87.9 70.0 80.0 64.7 ***** WIND SPEED (MEAN KNOTS) **** **** **** **** 3.2 3.7 5.0 4.6 3.3 3.0 2.0 1.7 **** FASTEST WIND DIRECTION *** *** *** *** 160 170 160 150 160 160 150 250 *** FASTEST WIND SPEED (KNOTS) *** *** *** *** 16 23 25 29 21 19 21 14 *** DAY ** ** ** ** 27 15 3 29 4 7 30 12 DAYS WITH SKY CLEAR (0-2)/8 **** **** **** **** 12 17 23 17 18 14 4 9 **** DAYS WITH P.CLOUDY (3-6)/8 **** **** **** **** 8 10 8 6 10 9 9 8 **** DAYS WITH CLOUDY (7-8)/8 **** **** **** **** 11 3 0 8 2 8 17 14 **** DAYS WITH VISIBILITY =< 2 KM **** **** **** **** 5 1 2 0 4 6 15 14 **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** 225.5 ****** 34.2 ****** ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1984 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 1004.7 1003.2 999.4 1000.6 1006.7 1011.9 1012.2 1020.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 1014.1 1013.4 1008.6 1012.1 1013.6 1023.0 1031.0 1031.0 ****** DAY-HOUR **-** **-** **-** **-** 12- 6 15-21 3- 6 30- 6 30- 6 21- 6 30-18 18-21 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 990.7 992.8 993.3 992.2 1001.2 996.4 998.2 1000.6 ****** DAY-HOUR **-** **-** **-** **-** 27-15 20-15 30-15 14-15 7-15 16-15 12-12 13-12 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1008.2 1006.7 1002.9 1004.1 1010.2 1015.5 1015.7 1023.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1017.6 1016.9 1012.1 1015.6 1017.1 1026.6 1034.6 1034.6 ****** DAY-HOUR **-** **-** **-** **-** 12- 6 15-21 3- 6 30- 6 30- 6 21- 6 30-18 18-21 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 994.2 996.3 996.8 995.7 1004.7 999.9 1001.7 1004.1 ****** DAY-HOUR **-** **-** **-** **-** 27-15 20-15 30-15 14-15 7-15 16-15 12-12 13-12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1006.9 1003.0 1004.0 1010.4 1015.7 1016.1 1024.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1017.2 1012.3 1015.9 1017.3 1026.9 1035.1 1035.0 ****** DAY-HOUR **-** **-** **-** **-** **-** 15-21 3- 6 30- 6 30- 6 21- 6 30-18 18-21 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 996.5 996.9 995.8 1004.8 1000.1 1002.0 1004.5 ****** DAY-HOUR **-** **-** **-** **-** **-** 20-15 30-15 14-15 7-15 16-15 12-12 13-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 1003.5 999.6 1000.5 1006.7 1011.8 1011.8 1020.7 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 1011.5 1006.3 1009.7 1011.4 1020.2 1022.5 1031.0 ****** DAY ** ** ** ** ** 16 3 30 22 8 30 19 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 996.1 995.3 993.8 1001.4 996.7 999.9 1002.4 ****** DAY ** ** ** ** ** 10 31 15 8 17 29 14 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1007.0 1003.1 1004.0 1010.2 1015.3 1015.3 1024.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1015.0 1009.8 1013.2 1014.9 1023.8 1026.1 1034.6 ****** DAY ** ** ** ** ** 16 3 30 22 8 30 19 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 999.6 998.8 997.3 1004.9 1000.2 1003.4 1005.9 ****** DAY ** ** ** ** ** 10 31 15 8 17 29 14 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1007.2 1003.2 1003.7 1010.5 1015.6 1015.7 1025.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1015.3 1009.9 1012.8 1015.1 1024.1 1026.5 1035.0 ****** DAY ** ** ** ** ** 16 3 31 22 22 30 19 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 999.7 998.8 997.4 1005.0 1000.4 1003.7 1006.3 ****** DAY ** ** ** ** ** 10 31 15 8 17 29 14 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 1005.7 1004.2 1000.4 1001.3 1007.2 1012.2 1012.1 1020.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 1012.9 1011.9 1007.4 1010.8 1012.5 1021.3 1024.7 1030.1 ****** DAY ** ** ** ** 12 16 3 30 30 8 30 19 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 996.4 996.0 996.3 995.9 1001.9 996.9 1000.5 1002.5 ****** DAY ** ** ** ** 28 10 30 15 8 17 12 14 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1009.3 1007.7 1003.9 1004.8 1010.7 1015.7 1015.6 1023.9 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1016.4 1015.4 1010.9 1014.3 1016.0 1024.9 1028.3 1033.7 ****** DAY ** ** ** ** 12 16 3 30 30 8 30 19 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 999.9 999.5 999.8 999.4 1005.4 1000.4 1004.0 1006.0 ****** DAY ** ** ** ** 28 10 30 15 8 17 12 14 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1009.5 1007.8 1004.0 1004.7 1010.9 1016.0 1016.0 1024.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1016.7 1015.7 1011.0 1012.4 1016.2 1025.2 1028.7 1034.1 ****** DAY ** ** ** ** 12 16 3 31 30 8 30 19 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1000.1 999.6 999.9 999.5 1005.6 1000.6 1004.3 1006.4 ****** DAY ** ** ** ** 28 10 30 15 8 17 12 14 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1984 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 1006.4 1004.7 1000.9 1002.0 1008.0 1013.2 1013.2 1021.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 1014.1 1012.4 1008.6 1012.1 1013.6 1023.0 1027.6 1030.8 ****** DAY ** ** ** ** 12 12 3 30 30 21 30 18 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 996.7 997.4 997.2 996.4 1002.3 998.4 1000.9 1003.3 ****** DAY ** ** ** ** 28 20 29 15 8 17 12 14 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1009.9 1008.2 1004.4 1005.5 1011.5 1016.7 1016.7 1024.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1017.6 1015.9 1012.1 1015.6 1017.1 1026.6 1031.2 1034.4 ****** DAY ** ** ** ** 12 12 3 30 30 21 30 18 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1000.2 1000.9 1000.7 999.9 1005.8 1001.9 1004.4 1006.8 ****** DAY ** ** ** ** 28 20 29 15 8 17 12 14 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1008.3 1004.5 1005.6 1011.7 1017.0 1017.1 1025.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1016.1 1012.3 1015.9 1017.3 1026.9 1031.6 1034.9 ****** DAY ** ** ** ** ** 12 3 30 30 21 30 18 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1001.0 1000.8 1000.0 1006.0 1002.2 1004.7 1007.2 ****** DAY ** ** ** ** ** 20 30 15 8 17 12 14 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 1006.0 1003.5 999.9 1001.0 1007.1 1012.3 1012.5 1020.5 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 1014.1 1012.4 1008.2 1011.2 1012.6 1022.9 1028.6 1030.5 ****** DAY ** ** ** ** 12 12 3 30 30 21 30 18 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 995.1 994.9 995.9 995.0 1001.8 998.0 999.8 1002.4 ****** DAY ** ** ** ** 27 10 30 15 8 17 12 13 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1009.5 1007.0 1003.4 1004.5 1010.6 1015.8 1016.0 1024.0 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1017.6 1015.9 1011.7 1014.7 1016.1 1026.5 1032.2 1034.1 ****** DAY ** ** ** ** 12 12 3 30 30 21 30 18 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 998.6 998.4 999.4 998.5 1005.3 1001.5 1003.3 1005.9 ****** DAY ** ** ** ** 27 10 30 15 8 17 12 13 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1007.1 1003.5 1004.5 1010.8 1016.1 1016.3 1024.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1016.1 1011.8 1014.9 1016.3 1026.8 1032.7 1034.5 ****** DAY ** ** ** ** ** 12 3 30 30 21 30 18 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 998.5 999.5 998.6 1005.5 1001.7 1003.6 1006.3 ****** DAY ** ** ** ** ** 10 30 15 8 17 12 13 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 1004.9 1002.1 998.3 999.4 1005.6 1010.8 1011.3 1019.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 1013.4 1012.0 1007.9 1009.8 1011.0 1021.3 1028.4 1029.1 ****** DAY ** ** ** ** 12 12 3 30 30 21 30 18 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 992.4 993.3 994.0 992.9 1001.4 997.0 998.2 1000.6 ****** DAY ** ** ** ** 27 10 30 14 8 16 12 13 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1008.4 1005.6 1001.8 1002.9 1009.1 1014.3 1014.8 1022.9 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1016.9 1015.5 1011.4 1013.3 1014.5 1024.9 1032.0 1032.7 ****** DAY ** ** ** ** 12 12 3 30 30 21 30 18 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 995.9 996.8 997.5 996.4 1004.9 1000.5 1001.7 1004.1 ****** DAY ** ** ** ** 27 10 30 14 8 16 12 13 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1005.7 1001.9 1002.3 1009.4 1014.6 1015.2 1023.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1015.7 1011.6 1012.1 1014.7 1025.2 1032.5 1033.1 ****** DAY ** ** ** ** ** 12 3 11 30 21 30 18 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 996.9 997.6 996.5 1005.1 1000.7 1002.0 1004.5 ****** DAY ** ** ** ** ** 10 30 14 8 16 12 13 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1984 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 1004.4 1001.6 997.6 999.2 1005.2 1011.0 1011.8 1019.9 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 1012.7 1011.8 1006.7 1009.7 1010.8 1020.8 1029.7 1030.2 ****** DAY ** ** ** ** 12 12 3 30 4 21 30 18 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 990.7 992.8 993.3 992.2 1001.2 996.4 999.4 1001.0 ****** DAY ** ** ** ** 27 20 30 14 7 16 12 13 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1007.9 1005.1 1001.1 1002.6 1008.7 1014.5 1015.3 1023.5 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1016.2 1015.3 1010.2 1013.2 1014.3 1024.4 1033.3 1033.8 ****** DAY ** ** ** ** 12 12 3 30 4 21 30 18 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 994.2 996.3 996.8 995.7 1004.7 999.9 1002.9 1004.5 ****** DAY ** ** ** ** 27 20 30 14 7 16 12 13 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1008.1 1005.3 1001.2 1002.5 1008.8 1014.8 1015.7 1024.0 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1016.5 1015.5 1010.4 1013.4 1014.5 1024.7 1033.8 1034.3 ****** DAY ** ** ** ** 12 12 3 30 4 21 30 18 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 994.3 996.5 996.9 995.8 1004.8 1000.1 1003.2 1004.9 ****** DAY ** ** ** ** 27 20 30 14 7 16 12 13 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 1003.1 999.0 1000.8 1006.7 1012.1 1012.5 1020.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 1012.3 1007.2 1010.4 1012.1 1021.3 1031.0 1030.8 ****** DAY ** ** ** ** ** 15 3 30 4 21 30 18 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 993.7 994.5 993.2 1002.0 996.8 1001.0 1001.2 ****** DAY ** ** ** ** ** 20 30 14 7 16 12 13 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1006.6 1002.5 1004.2 1010.2 1015.6 1016.1 1023.9 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1015.8 1010.7 1013.9 1015.6 1024.9 1034.6 1034.4 ****** DAY ** ** ** ** ** 15 3 30 4 21 30 18 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 997.2 998.0 996.7 1005.5 1000.3 1004.5 1004.7 ****** DAY ** ** ** ** ** 20 30 14 7 16 12 13 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1006.7 1002.6 1004.4 1010.4 1015.9 1016.4 1024.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1016.1 1010.9 1014.2 1015.8 1025.2 1035.1 1034.9 ****** DAY ** ** ** ** ** 15 3 30 4 21 30 18 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 997.3 998.0 996.8 1005.6 1000.6 1004.8 1005.2 ****** DAY ** ** ** ** ** 20 30 14 7 16 12 13 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 1003.5 999.4 1001.0 1006.9 1012.2 1012.5 1020.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 1013.4 1006.0 1010.0 1011.9 1021.1 1030.4 1031.0 ****** DAY ** ** ** ** ** 15 3 30 30 21 30 18 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 995.9 994.9 992.8 1002.1 996.8 1000.4 1001.9 ****** DAY ** ** ** ** ** 20 30 14 7 16 28 13 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1007.0 1002.9 1004.5 1010.5 1015.7 1016.0 1023.7 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1016.9 1009.5 1013.5 1015.4 1024.7 1034.0 1034.6 ****** DAY ** ** ** ** ** 15 3 30 30 21 30 18 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 999.4 998.4 996.3 1005.6 1000.3 1003.9 1005.4 ****** DAY ** ** ** ** ** 20 30 14 7 16 28 13 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1007.1 1003.0 1004.4 1010.6 1016.0 1016.4 1024.2 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1017.2 1009.7 1013.7 1015.6 1025.0 1034.5 1035.0 ****** DAY ** ** ** ** ** 15 3 30 30 21 30 18 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 999.5 998.4 996.4 1005.7 1000.5 1004.3 1005.8 ****** DAY ** ** ** ** ** 20 30 14 7 16 28 13 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.2 2.7 4.3 13.6 20.0 25.2 25.4 25.4 22.1 14.2 10.1 3.5 14.1 MINIMUN AIR TEMPERATURE (C) -1.4 -1.8 -0.0 8.4 12.8 18.8 20.3 18.1 16.8 9.8 6.1 0.0 9.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 5 16 5 2 0 0 0 28 DAYS WITH MINIMUM TEMP. <=-4 9 9 9 0 0 0 0 0 0 0 0 3 30 DAYS WITH FREEZING MIN.<= 0 21 18 16 0 0 0 0 0 0 0 0 15 70 TEMPERATURE RECORDS LOWEST(C) -10.0 -10.0 -8.5 4.0 5.0 15.0 15.0 14.4 11.0 4.0 2.0 -5.2 -10.0 DAY 18 19 3 17 4 10 24 13 22 23 1 4 MAXIMUM AIR TEMPERATURE (C) 6.7 7.0 9.0 19.4 27.8 32.2 31.1 33.2 28.2 19.5 15.0 7.6 19.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 10 27 24 29 13 0 0 0 103 DAYS WITH MAXIMUM TEMP. <= 0 1 2 1 0 0 0 0 0 0 0 0 0 4 TEMPERATURE RECORDS HIGHEST(C) 17.6 22.5 19.0 26.2 34.6 35.5 34.8 36.5 34.2 27.5 24.5 14.6 36.5 DAY 21 13 18 11 30 19 6 6 3 17 9 8 DIF. BETWEEN (MAX.-MIN.) (C) 8.1 8.8 9.0 11.0 15.0 13.4 10.8 15.1 11.4 9.7 8.9 7.6 10.7 MEAN DAILY TEMP. (MDT) (C) 2.7 2.6 4.5 13.9 20.3 25.5 25.7 25.6 22.5 14.7 10.6 3.8 14.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 34.9 135.0 145.7 143.4 56.8 0.0 0.0 0.0 515.9 HEATING DEG. DAYS(BASE 18 0C) 474.5 430.6 418.0 123.4 15.1 0.0 0.0 0.0 1.3 107.2 223.1 439.4 2232.6 DEWPOINT (MEAN C) 0.1 -1.4 1.9 9.9 13.9 17.8 18.4 18.4 16.3 10.5 7.3 1.5 9.5 MIXING RATIO (G/KG) 3.91 3.61 4.58 7.79 10.17 13.04 13.50 13.57 12.03 8.10 6.43 4.29 8.42 VAPOUR PRESSURE (HPA) 6.32 5.78 7.39 12.41 16.14 20.53 21.27 21.41 19.04 12.99 10.35 6.92 13.38 SATURATION DEF. (HPA) 1.13 2.20 1.51 3.79 8.73 12.50 11.93 12.36 8.58 3.76 2.41 1.08 5.83 RELATIVE HUMIDITY (MEAN %) 87 78 86 80 71 66 67 68 72 80 84 88 77 RELATIVE HUMIDITY (MAX. %) 97 93 98 95 94 89 84 89 90 93 95 96 93 RELATIVE HUMIDITY (MIN. %) 72 58 66 60 45 45 51 46 52 63 70 74 59 RELATIVE HUMIDITY (MEAN% 03UTC) 91 85 95 92 90 81 79 84 85 88 91 93 88 RELATIVE HUMIDITY (MEAN% 09UTC) 77 66 76 68 54 51 57 55 60 69 75 78 66 RELATIVE HUMIDITY (MEAN% 15UTC) 85 72 77 72 55 50 56 50 62 77 84 90 69 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 28.9 37.4 32.6 23.7 28.0 11.0 3.0 0.5 1.6 18.4 4.9 23.0 213.0 DAYS WITH PRECIPITATION >=10 1 1 1 1 1 0 0 0 0 0 0 2 7 DAYS WITH PRECIPITATION >= 5 1 2 2 2 3 1 0 0 0 2 0 2 15 DAYS WITH PRECIPITATION >= 1 4 9 7 5 5 2 1 0 1 4 1 3 42 DAYS WITH PRECIPITATION 10 13 12 14 5 2 3 1 2 9 9 5 85 GREATEST DAILY PRECIPITATION 21.0 13.8 10.0 15.0 13.0 8.0 3.0 0.5 1.5 5.0 2.5 11.0 21.0 DAY 15 2 22 4 19 8 28 16 28 20 20 3 DAY WITH THUNDER STORM 1 0 0 2 5 3 2 2 0 0 0 0 15 DAYS WITH SNOW OR SLEET 4 10 4 0 0 0 0 0 0 0 0 1 19 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 135 *** *** *** *** *** *** *** 135 135 135 270 *** PREVAILING WIND SPEED(KNOTS) 8.4 **** **** **** **** **** **** **** 8.7 8.4 8.6 5.3 **** PREVAILING WIND PERCENT 14.0 ***** ***** ***** ***** ***** ***** ***** 34.1 28.6 26.3 26.6 ***** CALMS PERCENT OF WIND 65.2 ***** ***** ***** ***** ***** ***** ***** 31.5 34.7 36.7 44.0 ***** NO. OF WIND OBSERVATION 221 0 0 0 0 0 0 0 232 248 240 248 1189 VECTOR WIND DIRECTION (MEAN) 174 *** *** *** *** *** *** *** 131 149 166 234 *** VECTOR WIND MAGNITUDE(KNOTS) 1.7 **** **** **** **** **** **** **** 2.6 1.9 1.8 1.6 **** WIND STEADINESES (MEAN %) 70.8 ***** ***** ***** ***** ***** ***** ***** 53.1 44.2 46.2 48.5 ***** WIND SPEED (MEAN KNOTS) 2.4 **** **** **** **** **** **** **** 4.9 4.3 3.9 3.3 **** FASTEST WIND DIRECTION 160 *** *** *** *** *** *** *** 120 120 150 140 *** FASTEST WIND SPEED (KNOTS) 19 *** *** *** *** *** *** *** 19 19 19 17 *** DAY 12 ** ** ** ** ** ** ** 27 10 10 13 DAYS WITH SKY CLEAR (0-2)/8 6 8 10 9 19 22 11 23 21 13 10 9 161 DAYS WITH P.CLOUDY (3-6)/8 15 9 9 14 10 8 17 7 4 8 7 10 118 DAYS WITH CLOUDY (7-8)/8 10 11 12 7 2 0 3 1 5 10 13 12 86 DAYS WITH VISIBILITY =< 2 KM 20 10 12 9 5 0 1 2 0 5 9 11 84 DURATION OF SUNSHINE HOURS 90.2 99.9 106.9 170.2 277.4 320.3 221.0 306.9 222.7 165.5 108.2 96.7 2185.9 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1011.5 1003.7 1014.9 1004.0 1004.0 1000.2 1001.8 1003.5 1005.2 1011.3 1012.4 1012.3 1007.1 MAX. QFE PRESSURE IN HPA 1024.4 1020.6 1033.1 1025.0 1014.6 1008.4 1008.6 1011.1 1018.4 1022.9 1026.7 1027.1 1033.1 DAY-HOUR 14- 6 28- 6 10- 6 16-18 12- 6 9- 6 16- 6 25- 6 17- 6 2- 9 19- 6 14- 6 MIN. QFE PRESSURE IN HPA 998.0 991.0 994.1 993.2 997.2 987.8 993.0 995.5 995.7 998.0 1003.1 989.6 987.8 DAY-HOUR 21-12 5-12 24- 3 14-15 16-15 20-15 19-15 5-15 1-15 20- 9 26-12 19- 0 MEAN QNH PRESSURE IN HPA 1015.0 1007.2 1018.5 1007.5 1007.5 1003.7 1005.3 1007.0 1008.8 1014.8 1016.0 1015.9 1010.6 MAX. QNH PRESSURE IN HPA 1028.0 1024.2 1036.7 1028.6 1018.1 1011.9 1012.1 1014.6 1022.0 1026.5 1030.3 1030.7 1036.7 DAY-HOUR 14- 6 28- 6 10- 6 16-18 12- 6 9- 6 16- 6 25- 6 17- 6 2- 9 19- 6 14- 6 MIN. QNH PRESSURE IN HPA 1001.5 994.5 997.6 996.7 1000.7 991.3 996.5 999.0 999.2 1001.5 1006.6 993.1 991.3 DAY-HOUR 21-12 5-12 24- 3 14-15 16-15 20-15 19-15 5-15 1-15 20- 9 26-12 19- 0 MEAN QFF PRESSURE IN HPA 1015.2 1007.1 1018.9 1007.7 1007.7 1003.8 1005.5 1007.1 1008.9 1015.1 1016.3 1016.3 1010.8 MAX. QFF PRESSURE IN HPA 1028.4 1024.7 1037.2 1029.0 1018.4 1012.1 1012.3 1014.8 1022.2 1026.8 1030.7 1031.2 1037.2 DAY-HOUR 14- 6 28- 6 10- 6 16-18 12- 6 9- 6 17- 6 25- 6 17- 6 2- 9 19- 6 14- 6 MIN. QFF PRESSURE IN HPA 1001.8 994.9 998.0 997.0 1000.8 991.3 996.6 999.1 999.3 1001.8 1007.0 993.4 991.3 DAY-HOUR 21-12 5-12 24- 3 14-15 16-15 20-15 19-15 5-15 1-15 20- 9 26-12 19- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1012.0 1002.5 1014.8 1004.2 1004.0 1000.4 1001.8 1003.7 1005.3 1010.9 1012.6 1012.3 1007.0 MAX. QFE PRESSURE IN HPA 1022.4 1018.1 1032.0 1024.0 1013.1 1006.9 1007.2 1010.6 1018.0 1020.3 1024.9 1026.6 1032.0 DAY 14 28 10 17 12 10 16 25 17 31 19 14 MIN. QFE PRESSURE IN HPA 1001.7 994.1 995.4 996.1 998.0 990.3 994.8 997.2 997.2 998.7 1004.6 989.6 989.6 DAY 21 5 24 24 1 20 20 5 7 18 9 19 MEAN QNH PRESSURE IN HPA 1015.5 1006.0 1018.3 1007.7 1007.5 1003.9 1005.3 1007.2 1008.8 1014.4 1016.1 1015.8 1010.6 MAX. QNH PRESSURE IN HPA 1026.0 1021.7 1035.6 1027.6 1016.6 1010.4 1010.7 1014.1 1021.6 1023.9 1028.5 1030.2 1035.6 DAY 14 28 10 17 12 10 16 25 17 31 19 14 MIN. QNH PRESSURE IN HPA 1005.2 997.6 998.9 999.6 1001.5 993.8 998.3 1000.7 1000.7 1002.2 1008.1 993.1 993.1 DAY 21 5 24 24 1 20 20 5 7 18 9 19 MEAN QFF PRESSURE IN HPA 1015.6 1006.4 1018.7 1008.0 1007.4 1004.1 1005.5 1007.3 1008.9 1014.7 1016.4 1016.2 1010.8 MAX. QFF PRESSURE IN HPA 1026.4 1022.2 1036.1 1028.0 1016.3 1010.6 1010.8 1014.3 1021.7 1024.2 1028.9 1030.6 1036.1 DAY 14 28 10 17 13 10 29 25 17 31 19 14 MIN. QFF PRESSURE IN HPA 1005.6 998.0 999.3 999.8 1001.7 993.8 998.4 1000.8 1000.8 1002.4 1008.4 993.4 993.4 DAY 21 5 24 24 1 20 20 5 7 18 9 19 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1011.4 1003.9 1015.0 1004.6 1004.5 1001.4 1002.6 1004.4 1005.9 1011.4 1012.6 1012.3 1007.5 MAX. QFE PRESSURE IN HPA 1022.8 1019.0 1032.4 1023.3 1013.8 1007.6 1008.0 1010.8 1018.0 1021.5 1025.1 1026.6 1032.4 DAY 14 28 10 17 12 10 16 25 17 31 19 14 MIN. QFE PRESSURE IN HPA 1000.0 993.0 994.1 995.9 997.7 991.5 995.6 997.8 998.4 998.7 1005.0 990.1 990.1 DAY 21 5 24 24 1 20 20 5 14 18 9 19 MEAN QNH PRESSURE IN HPA 1014.9 1007.4 1018.6 1008.1 1008.0 1004.9 1006.1 1007.9 1009.4 1014.9 1016.1 1015.8 1011.0 MAX. QNH PRESSURE IN HPA 1026.4 1022.6 1036.0 1026.9 1017.3 1011.1 1011.5 1014.3 1021.6 1025.1 1028.7 1030.2 1036.0 DAY 14 28 10 17 12 10 16 25 17 31 19 14 MIN. QNH PRESSURE IN HPA 1003.5 996.5 997.6 999.4 1001.2 995.0 999.1 1001.3 1001.9 1002.2 1008.5 993.6 993.6 DAY 21 5 24 24 1 20 20 5 14 18 9 19 MEAN QFF PRESSURE IN HPA 1015.4 1007.9 1019.0 1008.4 1008.2 1005.1 1006.2 1008.0 1009.6 1015.2 1016.5 1016.2 1011.3 MAX. QFF PRESSURE IN HPA 1026.8 1023.1 1036.5 1027.3 1017.6 1011.3 1011.6 1014.5 1021.8 1025.4 1029.1 1030.6 1036.5 DAY 14 28 10 17 12 10 16 25 17 31 19 14 MIN. QFF PRESSURE IN HPA 1003.9 996.9 998.0 999.6 1001.4 995.1 999.2 1001.4 1002.0 1002.4 1008.8 994.0 994.0 DAY 21 5 24 24 1 20 20 5 14 18 9 19 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1012.1 1004.8 1016.1 1005.3 1005.2 1001.7 1003.1 1004.8 1006.7 1012.5 1013.5 1013.2 1008.2 MAX. QFE PRESSURE IN HPA 1024.4 1020.6 1033.1 1023.5 1014.6 1008.4 1008.6 1011.1 1018.4 1022.8 1026.7 1027.1 1033.1 DAY 14 28 10 17 12 9 16 25 17 2 19 14 MIN. QFE PRESSURE IN HPA 1000.6 992.6 996.2 997.7 998.6 991.6 996.4 998.2 999.0 1000.3 1005.9 992.9 991.6 DAY 21 5 24 24 1 20 19 5 14 18 9 19 MEAN QNH PRESSURE IN HPA 1015.6 1008.3 1019.6 1008.8 1008.8 1005.2 1006.6 1008.3 1010.2 1016.1 1017.1 1016.7 1011.8 MAX. QNH PRESSURE IN HPA 1028.0 1024.2 1036.7 1027.1 1018.1 1011.9 1012.1 1014.6 1022.0 1026.4 1030.3 1030.7 1036.7 DAY 14 28 10 17 12 9 16 25 17 2 19 14 MIN. QNH PRESSURE IN HPA 1004.1 996.1 999.7 1001.2 1002.1 995.1 999.9 1001.7 1002.5 1003.8 1009.4 996.4 995.1 DAY 21 5 24 24 1 20 19 5 14 18 9 19 MEAN QFF PRESSURE IN HPA 1016.1 1007.2 1020.1 1009.1 1009.0 1005.3 1006.7 1008.5 1010.4 1016.4 1017.4 1017.2 1011.9 MAX. QFF PRESSURE IN HPA 1028.4 1024.7 1037.2 1027.5 1018.4 1012.1 1012.3 1014.8 1022.2 1026.7 1030.7 1031.2 1037.2 DAY 14 28 10 17 12 9 17 25 17 2 19 14 MIN. QFF PRESSURE IN HPA 1004.5 996.5 1000.1 1001.4 1002.3 995.2 1000.0 1001.8 1002.6 1004.0 1009.7 996.8 995.2 DAY 21 5 24 24 1 20 19 5 14 18 9 19 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1011.4 1004.4 1015.8 1004.6 1004.6 1000.6 1002.2 1004.0 1005.6 1011.7 1012.6 1012.3 1007.5 MAX. QFE PRESSURE IN HPA 1023.7 1019.9 1032.8 1022.4 1013.8 1008.3 1008.4 1010.5 1016.6 1022.9 1025.7 1025.9 1032.8 DAY 14 28 10 17 12 9 17 25 17 2 19 14 MIN. QFE PRESSURE IN HPA 999.8 992.9 997.0 997.2 998.7 990.6 995.6 997.5 998.2 998.0 1003.6 993.7 990.6 DAY 21 5 20 24 1 20 19 5 14 20 26 19 MEAN QNH PRESSURE IN HPA 1014.9 1008.0 1019.4 1008.1 1008.1 1004.1 1005.7 1007.5 1009.1 1015.3 1016.1 1015.9 1011.0 MAX. QNH PRESSURE IN HPA 1027.3 1023.5 1036.4 1026.0 1017.3 1011.8 1011.9 1014.0 1020.1 1026.5 1029.3 1029.5 1036.4 DAY 14 28 10 17 12 9 17 25 17 2 19 14 MIN. QNH PRESSURE IN HPA 1003.3 996.4 1000.5 1000.7 1002.2 994.1 999.1 1001.0 1001.7 1001.5 1007.1 997.2 994.1 DAY 21 5 20 24 1 20 19 5 14 20 26 19 MEAN QFF PRESSURE IN HPA 1015.4 1006.9 1019.6 1008.4 1008.3 1004.2 1005.8 1007.6 1009.3 1015.5 1016.7 1016.3 1011.2 MAX. QFF PRESSURE IN HPA 1027.7 1024.0 1036.9 1026.3 1017.6 1012.0 1012.1 1014.2 1020.4 1026.8 1029.7 1029.9 1036.9 DAY 14 28 10 17 12 9 17 25 17 2 19 14 MIN. QFF PRESSURE IN HPA 1003.7 996.8 1000.8 1000.9 1002.4 994.2 999.2 1001.1 1001.8 1001.8 1007.5 997.6 994.2 DAY 21 5 20 24 1 20 19 5 14 20 26 19 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1010.1 1003.4 1014.3 1003.0 1003.0 999.0 1000.7 1002.3 1003.9 1010.3 1011.5 1011.5 1006.1 MAX. QFE PRESSURE IN HPA 1021.3 1018.2 1030.7 1022.4 1012.1 1007.0 1006.4 1009.1 1013.5 1020.9 1024.5 1024.6 1030.7 DAY 14 28 10 16 12 9 17 24 17 2 19 14 MIN. QFE PRESSURE IN HPA 998.0 991.0 994.6 995.4 997.5 988.4 993.9 996.3 996.3 998.5 1003.1 994.6 988.4 DAY 21 5 20 12 1 20 19 5 6 17 26 18 MEAN QNH PRESSURE IN HPA 1013.6 1007.0 1017.8 1006.5 1006.5 1002.5 1004.2 1005.8 1007.4 1013.9 1015.0 1015.1 1009.6 MAX. QNH PRESSURE IN HPA 1024.9 1021.8 1034.3 1026.0 1015.6 1010.5 1009.9 1012.6 1017.0 1024.5 1028.1 1028.2 1034.3 DAY 14 28 10 16 12 9 17 24 17 2 19 14 MIN. QNH PRESSURE IN HPA 1001.5 994.5 998.1 998.9 1001.0 991.9 997.4 999.8 999.8 1002.0 1006.6 998.1 991.9 DAY 21 5 20 12 1 20 19 5 6 17 26 18 MEAN QFF PRESSURE IN HPA 1014.1 1005.9 1018.2 1006.8 1006.5 1002.5 1004.3 1005.9 1007.5 1014.1 1015.3 1015.5 1009.7 MAX. QFF PRESSURE IN HPA 1025.3 1022.3 1034.8 1026.3 1015.9 1010.7 1010.1 1012.7 1017.2 1024.7 1028.5 1028.6 1034.8 DAY 14 28 10 16 12 9 17 24 17 2 19 14 MIN. QFF PRESSURE IN HPA 1001.8 994.9 998.4 999.1 1001.2 991.9 997.5 999.9 999.9 1002.2 1007.0 998.5 991.9 DAY 21 5 20 12 1 20 19 5 6 17 26 18 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1011.0 1003.9 1014.2 1002.6 1002.9 998.5 1000.4 1001.8 1003.8 1010.6 1011.9 1012.2 1006.2 MAX. QFE PRESSURE IN HPA 1023.5 1018.4 1030.4 1023.5 1011.5 1006.6 1006.0 1009.0 1014.3 1020.2 1024.5 1023.6 1030.4 DAY 23 28 9 16 12 9 16 24 16 2 19 14 MIN. QFE PRESSURE IN HPA 999.3 991.4 995.6 993.2 997.2 987.8 993.0 995.5 995.7 999.0 1003.4 994.2 987.8 DAY 21 5 20 14 16 20 19 5 1 17 26 18 MEAN QNH PRESSURE IN HPA 1014.6 1007.4 1017.7 1006.1 1006.4 1002.0 1003.9 1005.3 1007.3 1014.1 1015.5 1015.7 1009.7 MAX. QNH PRESSURE IN HPA 1027.1 1022.0 1034.0 1027.1 1015.0 1010.1 1009.5 1012.5 1017.8 1023.8 1028.1 1027.2 1034.0 DAY 23 28 9 16 12 9 16 24 16 2 19 14 MIN. QNH PRESSURE IN HPA 1002.8 994.9 999.1 996.7 1000.7 991.3 996.5 999.0 999.2 1002.5 1006.9 997.7 991.3 DAY 21 5 20 14 16 20 19 5 1 17 26 18 MEAN QFF PRESSURE IN HPA 1014.6 1007.9 1018.2 1006.4 1006.6 1002.1 1004.0 1005.5 1007.5 1014.4 1015.8 1016.2 1009.9 MAX. QFF PRESSURE IN HPA 1025.3 1022.5 1034.5 1027.5 1015.3 1010.3 1009.6 1012.7 1018.0 1024.1 1028.5 1027.6 1034.5 DAY 14 28 9 16 12 9 16 24 16 2 19 14 MIN. QFF PRESSURE IN HPA 1003.2 995.3 999.4 997.0 1000.8 991.3 996.6 999.1 999.3 1002.7 1007.3 998.1 991.3 DAY 21 5 20 14 16 20 19 5 1 17 26 18 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1011.9 1003.3 1014.9 1003.7 1004.0 999.8 1001.8 1003.3 1005.4 1011.4 1012.4 1012.6 1007.0 MAX. QFE PRESSURE IN HPA 1022.7 1019.5 1031.9 1025.0 1012.3 1007.5 1007.1 1010.4 1016.9 1020.4 1025.7 1024.7 1031.9 DAY 23 28 9 16 11 9 15 24 16 2 18 13 MIN. QFE PRESSURE IN HPA 1000.1 992.6 996.1 994.9 998.5 989.3 994.3 997.0 997.1 999.5 1004.0 992.4 989.3 DAY 21 15 20 14 16 20 19 5 6 17 26 18 MEAN QNH PRESSURE IN HPA 1015.5 1006.8 1018.4 1007.2 1007.5 1003.3 1005.3 1006.8 1008.9 1014.9 1016.0 1016.1 1010.6 MAX. QNH PRESSURE IN HPA 1026.3 1023.1 1035.5 1028.6 1015.8 1011.0 1010.6 1013.9 1020.4 1024.0 1029.3 1028.3 1035.5 DAY 23 28 9 16 11 9 15 24 16 2 18 13 MIN. QNH PRESSURE IN HPA 1003.6 996.1 999.6 998.4 1002.0 992.8 997.8 1000.5 1000.6 1003.0 1007.5 995.9 992.8 DAY 21 15 20 14 16 20 19 5 6 17 26 18 MEAN QFF PRESSURE IN HPA 1015.6 1007.3 1018.8 1007.5 1007.7 1003.5 1005.5 1006.9 1009.1 1015.2 1016.3 1016.6 1010.8 MAX. QFF PRESSURE IN HPA 1024.4 1023.6 1036.0 1029.0 1016.1 1011.2 1010.7 1014.1 1020.7 1024.3 1029.7 1028.7 1036.0 DAY 22 28 9 16 12 9 15 24 16 2 18 13 MIN. QFF PRESSURE IN HPA 1004.0 996.5 999.9 998.7 1002.2 992.9 997.9 1000.6 1000.7 1003.2 1007.9 996.3 992.9 DAY 21 15 20 14 16 20 19 5 6 17 26 18 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1011.9 1003.2 1014.6 1003.8 1004.2 1000.4 1002.1 1003.5 1005.5 1011.4 1012.4 1012.4 1007.1 MAX. QFE PRESSURE IN HPA 1022.3 1019.5 1032.2 1024.8 1013.0 1007.7 1007.6 1010.6 1017.8 1019.8 1025.5 1025.9 1032.2 DAY 22 28 9 16 11 9 15 24 16 30 18 13 MIN. QFE PRESSURE IN HPA 1002.4 993.1 996.4 995.5 998.7 990.3 994.8 997.0 997.1 999.4 1004.4 991.4 990.3 DAY 21 5 20 30 16 19 19 5 6 17 26 18 MEAN QNH PRESSURE IN HPA 1015.4 1006.7 1018.2 1007.3 1007.7 1003.9 1005.6 1007.0 1009.0 1014.9 1015.9 1015.9 1010.6 MAX. QNH PRESSURE IN HPA 1025.9 1023.1 1035.8 1028.4 1016.5 1011.2 1011.1 1014.1 1021.4 1023.4 1029.1 1029.5 1035.8 DAY 22 28 9 16 11 9 15 24 16 30 18 13 MIN. QNH PRESSURE IN HPA 1005.9 996.6 999.9 999.0 1002.2 993.8 998.3 1000.5 1000.6 1002.9 1007.9 994.9 993.8 DAY 21 5 20 30 16 19 19 5 6 17 26 18 MEAN QFF PRESSURE IN HPA 1015.2 1007.2 1018.6 1007.6 1007.9 1004.0 1005.8 1007.1 1009.2 1015.2 1016.5 1016.4 1010.9 MAX. QFF PRESSURE IN HPA 1025.0 1023.6 1036.3 1028.8 1016.8 1011.4 1011.2 1014.3 1021.6 1023.7 1029.5 1029.9 1036.3 DAY 13 28 9 16 11 9 15 24 16 30 18 13 MIN. QFF PRESSURE IN HPA 1006.3 997.0 1000.2 999.2 1002.3 993.9 998.4 1000.6 1000.7 1003.1 1008.3 995.2 993.9 DAY 21 5 20 30 16 19 19 5 6 17 26 18 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.8 3.5 5.2 14.2 17.7 23.7 26.9 28.7 24.3 16.3 8.9 5.2 14.9 MINIMUN AIR TEMPERATURE (C) -0.8 0.5 0.8 7.9 12.0 17.3 20.4 20.3 16.8 11.6 6.3 -0.4 9.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 13 15 3 0 0 0 33 DAYS WITH MINIMUM TEMP. <=-4 6 1 3 0 0 0 0 0 0 0 0 3 13 DAYS WITH FREEZING MIN.<= 0 18 12 14 0 0 0 0 0 0 0 0 17 61 TEMPERATURE RECORDS LOWEST(C) -8.5 -4.5 -9.4 3.0 6.0 13.4 16.5 15.0 9.0 7.0 1.5 -5.8 -9.4 DAY 21 8 2 2 9 21 22 31 29 9 13 13 MAXIMUM AIR TEMPERATURE (C) 9.4 7.3 10.2 21.0 24.3 30.6 33.8 34.0 29.6 19.8 11.1 9.5 20.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 1 25 29 31 20 0 0 0 107 DAYS WITH MAXIMUM TEMP. <= 0 0 1 1 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS HIGHEST(C) 19.8 21.0 18.6 33.2 30.0 34.6 38.2 36.6 35.8 26.4 18.8 18.6 38.2 DAY 18 27 10 15 31 6 10 16 4 5 3 21 DIF. BETWEEN (MAX.-MIN.) (C) 10.2 6.8 9.4 13.1 12.3 13.3 13.4 13.7 12.8 8.2 4.8 9.9 10.6 MEAN DAILY TEMP. (MDT) (C) 4.3 3.9 5.5 14.5 18.2 23.9 27.1 27.2 23.2 15.7 8.7 4.5 14.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 2.1 6.9 103.9 189.1 191.3 90.5 0.0 0.0 0.0 583.8 HEATING DEG. DAYS(BASE 18 0C) 425.5 394.7 387.4 112.6 39.7 5.1 0.0 0.0 13.2 76.5 279.5 417.5 2151.7 DEWPOINT (MEAN C) 0.5 1.5 1.9 9.7 13.8 17.7 19.9 16.9 15.7 11.5 6.1 0.1 9.6 MIXING RATIO (G/KG) 4.05 4.28 4.40 7.61 10.17 12.98 15.06 12.35 11.46 8.55 5.98 3.91 8.40 VAPOUR PRESSURE (HPA) 6.53 6.91 7.13 12.18 16.14 20.44 23.65 19.51 18.21 13.71 9.65 6.31 13.36 SATURATION DEF. (HPA) 1.88 1.23 2.05 4.95 5.05 10.10 13.09 21.10 13.68 5.22 2.14 2.95 6.95 RELATIVE HUMIDITY (MEAN %) 81 89 81 77 79 72 68 52 62 75 84 73 74 RELATIVE HUMIDITY (MAX. %) 95 97 95 95 95 90 89 72 83 91 93 87 90 RELATIVE HUMIDITY (MIN. %) 62 75 64 56 61 54 49 37 45 60 74 57 58 RELATIVE HUMIDITY (MEAN% 03UTC) 88 95 92 91 88 84 82 71 82 89 92 84 87 RELATIVE HUMIDITY (MEAN% 09UTC) 72 83 72 62 67 61 55 44 55 68 77 62 65 RELATIVE HUMIDITY (MEAN% 15UTC) 82 87 73 65 71 61 55 46 56 75 87 77 70 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 8.8 26.3 6.8 33.2 36.7 43.0 3.2 0.5 11.3 16.0 60.8 9.2 255.8 DAYS WITH PRECIPITATION >=10 0 1 0 1 1 1 0 0 0 0 3 0 7 DAYS WITH PRECIPITATION >= 5 0 1 1 2 2 4 0 0 0 0 6 1 17 DAYS WITH PRECIPITATION >= 1 3 5 1 4 6 4 2 0 4 7 8 3 47 DAYS WITH PRECIPITATION 6 11 7 6 14 9 4 3 4 14 16 10 104 GREATEST DAILY PRECIPITATION 4.7 12.0 6.1 23.2 20.0 24.2 2.0 0.3 4.0 4.0 13.0 5.0 24.2 DAY 15 10 1 3 22 19 28 24 29 24 29 4 DAY WITH THUNDER STORM 0 0 0 0 11 6 3 0 0 0 0 0 20 DAYS WITH SNOW OR SLEET 3 6 3 0 0 0 0 0 0 0 0 2 14 DAYS WITH DUST 0 0 0 1 0 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 270 135 135 135 135 135 135 135 135 135 135 270 135 PREVAILING WIND SPEED(KNOTS) 6.1 11.0 9.6 7.6 9.3 9.5 10.4 10.2 10.6 6.9 7.5 6.9 9.5 PREVAILING WIND PERCENT 28.2 22.0 39.7 31.3 31.6 19.2 32.1 32.3 32.0 25.8 36.7 24.5 27.3 CALMS PERCENT OF WIND 32.3 54.3 30.4 25.8 15.8 25.9 25.2 19.4 15.3 31.6 35.3 19.4 27.9 NO. OF WIND OBSERVATION 248 223 247 240 247 239 246 155 150 155 150 155 2455 VECTOR WIND DIRECTION (MEAN) 241 141 138 134 124 137 128 120 127 108 139 226 136 VECTOR WIND MAGNITUDE(KNOTS) 1.7 2.1 3.8 2.4 2.7 1.8 4.3 4.1 3.5 1.1 2.7 1.4 2.3 WIND STEADINESES (MEAN %) 37.0 53.8 70.4 50.0 45.0 33.3 71.7 67.2 53.8 28.2 62.8 25.5 44.2 WIND SPEED (MEAN KNOTS) 4.6 3.9 5.4 4.8 6.0 5.4 6.0 6.1 6.5 3.9 4.3 5.5 5.2 FASTEST WIND DIRECTION 150 130 150 150 360 130 150 150 150 120 160 150 150 FASTEST WIND SPEED (KNOTS) 29 27 35 29 25 27 29 19 29 19 19 27 35 DAY 19 28 11 16 4 25 17 2 20 10 5 8 DAYS WITH SKY CLEAR (0-2)/8 9 3 3 9 8 17 21 25 23 4 3 11 136 DAYS WITH P.CLOUDY (3-6)/8 10 7 15 12 16 9 8 6 3 12 3 11 112 DAYS WITH CLOUDY (7-8)/8 12 18 13 9 7 4 2 0 4 15 24 9 117 DAYS WITH VISIBILITY =< 2 KM 13 10 6 8 1 1 1 1 4 7 2 2 56 DURATION OF SUNSHINE HOURS 115.5 54.9 110.4 192.8 206.0 256.6 260.5 295.8 247.4 119.2 43.2 124.4 2026.7 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1010.4 1010.8 1015.4 1008.7 1004.7 1000.6 1001.6 1003.1 1007.4 1011.7 1014.2 1011.1 1008.3 MAX. QFE PRESSURE IN HPA 1024.2 1019.4 1027.0 1018.3 1016.8 1007.8 1009.6 1009.1 1019.3 1023.3 1025.6 1032.2 1032.2 DAY-HOUR 23- 6 28-21 16- 6 5- 6 17- 9 3- 6 3- 6 24- 6 30- 3 14- 9 16- 6 10- 6 MIN. QFE PRESSURE IN HPA 997.6 998.0 1004.2 995.7 987.3 991.2 992.4 994.2 1000.4 999.9 996.8 989.7 987.3 DAY-HOUR 18-12 3-21 9-15 11-15 3-15 12-15 9-15 14-15 5-15 23- 3 9-12 27-12 MEAN QNH PRESSURE IN HPA 1013.9 1014.3 1018.9 1012.2 1008.2 1004.1 1005.1 1006.6 1010.9 1015.2 1017.7 1014.6 1011.8 MAX. QNH PRESSURE IN HPA 1027.8 1023.0 1030.6 1021.9 1020.3 1011.3 1013.1 1012.6 1022.9 1026.9 1029.2 1035.8 1035.8 DAY-HOUR 23- 6 28-21 16- 6 5- 6 17- 9 3- 6 3- 6 24- 6 30- 3 14- 9 16- 6 10- 6 MIN. QNH PRESSURE IN HPA 1001.1 1001.5 1007.7 999.2 990.8 994.7 995.9 997.7 1003.9 1003.4 1000.3 993.2 990.8 DAY-HOUR 18-12 3-21 9-15 11-15 3-15 12-15 9-15 14-15 5-15 23- 3 9-12 27-12 MEAN QFF PRESSURE IN HPA 1014.4 1014.8 1019.4 1012.5 1008.5 1004.3 1005.2 ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1028.3 1023.4 1031.0 1022.2 1020.6 1011.5 1013.3 ****** ****** ****** ****** ****** ****** DAY-HOUR 23- 6 28-21 16- 6 5- 6 17- 9 3- 6 3- 6 **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA 1001.4 1002.0 1008.1 999.4 990.9 994.8 995.9 ****** ****** ****** ****** ****** ****** DAY-HOUR 18-12 3-21 9-15 11-15 3-15 12-15 9-15 **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1010.3 1010.5 1015.1 1008.5 1004.8 1000.7 1001.7 ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 1022.8 1017.9 1023.8 1017.1 1015.0 1007.3 1007.2 ****** ****** ****** ****** ****** ****** DAY 23 1 16 5 18 3 2 ** ** ** ** ** MIN. QFE PRESSURE IN HPA 998.5 998.1 1005.8 998.6 991.6 993.9 994.5 ****** ****** ****** ****** ****** ****** DAY 19 4 10 15 4 13 10 ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1013.8 1014.0 1018.6 1012.0 1008.3 1004.2 1005.2 ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1026.4 1021.5 1027.4 1020.6 1018.5 1010.8 1010.7 ****** ****** ****** ****** ****** ****** DAY 23 1 16 5 18 3 2 ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1002.0 1001.6 1009.3 1002.1 995.1 997.4 998.0 ****** ****** ****** ****** ****** ****** DAY 19 4 10 15 4 13 10 ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1014.2 1014.5 1019.1 1012.3 1008.6 1004.4 1005.3 ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1026.9 1021.9 1027.8 1020.9 1018.8 1011.0 1010.9 ****** ****** ****** ****** ****** ****** DAY 23 1 16 5 18 3 2 ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1002.3 1002.1 1009.6 1002.3 995.3 997.5 998.0 ****** ****** ****** ****** ****** ****** DAY 19 4 10 15 4 13 10 ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1010.4 1010.7 1015.7 1009.1 1005.4 1001.3 1002.6 1004.1 1008.0 1011.9 1014.2 1011.2 1008.7 MAX. QFE PRESSURE IN HPA 1023.1 1018.0 1025.1 1017.6 1015.9 1007.5 1008.0 1007.8 1019.3 1021.9 1024.8 1030.4 1030.4 DAY 23 13 16 5 17 3 3 4 30 15 16 10 MIN. QFE PRESSURE IN HPA 998.3 998.6 1006.5 998.5 991.6 995.6 996.3 997.4 1002.2 999.9 998.2 992.5 991.6 DAY 19 4 10 15 3 12 9 15 15 23 9 27 MEAN QNH PRESSURE IN HPA 1013.9 1014.2 1019.2 1012.6 1008.9 1004.8 1006.1 1007.6 1011.5 1015.4 1017.7 1014.7 1012.2 MAX. QNH PRESSURE IN HPA 1026.7 1021.6 1028.7 1021.2 1019.4 1011.0 1011.5 1011.3 1022.9 1025.5 1028.4 1034.0 1034.0 DAY 23 13 16 5 17 3 3 4 30 15 16 10 MIN. QNH PRESSURE IN HPA 1001.8 1002.1 1010.0 1002.0 995.1 999.1 999.8 1000.9 1005.7 1003.4 1001.7 996.0 995.1 DAY 19 4 10 15 3 12 9 15 15 23 9 27 MEAN QFF PRESSURE IN HPA 1014.4 1014.7 1019.6 1012.9 1009.1 1004.9 1006.3 1007.7 1011.7 1015.7 1018.1 1014.6 1012.5 MAX. QFF PRESSURE IN HPA 1027.2 1022.0 1029.2 1021.5 1019.7 1011.2 1011.7 1011.5 1023.2 1025.8 1028.8 1034.5 1034.5 DAY 23 13 16 5 17 3 3 24 30 15 16 10 MIN. QFF PRESSURE IN HPA 1002.2 1002.6 1010.4 1002.2 995.3 999.2 999.8 1001.0 1005.9 1003.6 1002.0 996.4 995.3 DAY 19 4 10 15 3 12 10 15 15 23 9 27 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1011.4 1011.7 1016.7 1010.1 1005.8 1001.6 1003.0 1004.6 1008.9 1012.9 1015.1 1012.0 1009.5 MAX. QFE PRESSURE IN HPA 1024.2 1018.8 1027.0 1018.3 1016.7 1007.8 1009.6 1009.1 1018.8 1022.9 1025.6 1032.2 1032.2 DAY 23 13 16 5 17 3 3 24 30 14 16 10 MIN. QFE PRESSURE IN HPA 998.9 1001.6 1008.3 999.2 991.7 995.4 996.8 998.2 1003.9 1004.4 998.8 991.8 991.7 DAY 18 4 10 15 3 12 9 15 15 23 9 27 MEAN QNH PRESSURE IN HPA 1014.9 1015.2 1020.2 1013.6 1009.4 1005.1 1006.5 1008.1 1012.4 1016.4 1018.6 1015.6 1013.0 MAX. QNH PRESSURE IN HPA 1027.8 1022.4 1030.6 1021.9 1020.2 1011.3 1013.1 1012.6 1022.4 1026.5 1029.2 1035.8 1035.8 DAY 23 13 16 5 17 3 3 24 30 14 16 10 MIN. QNH PRESSURE IN HPA 1002.4 1005.1 1011.8 1002.7 995.2 998.9 1000.3 1001.7 1007.4 1007.9 1002.3 995.3 995.2 DAY 18 4 10 15 3 12 9 15 15 23 9 27 MEAN QFF PRESSURE IN HPA 1015.3 1015.7 1020.7 1013.9 1009.6 1005.3 1006.7 ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1028.3 1022.8 1031.0 1022.2 1020.5 1011.5 1013.3 ****** ****** ****** ****** ****** ****** DAY 23 13 16 5 17 3 3 ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1002.8 1005.6 1012.2 1002.9 995.4 999.0 1000.4 ****** ****** ****** ****** ****** ****** DAY 18 4 10 15 3 12 9 ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1010.4 1011.0 1016.0 1009.3 1004.8 1000.8 1002.0 1003.5 1007.8 1012.0 1014.2 1011.0 1008.6 MAX. QFE PRESSURE IN HPA 1023.1 1018.0 1026.5 1017.6 1016.8 1007.5 1007.4 1008.4 1017.3 1023.3 1024.7 1031.7 1031.7 DAY 28 1 16 19 17 20 1 24 30 14 16 10 MIN. QFE PRESSURE IN HPA 998.0 1001.1 1006.7 997.4 990.3 994.4 995.4 997.3 1003.3 1002.5 997.3 991.2 990.3 DAY 18 6 9 15 3 12 9 15 5 22 9 27 MEAN QNH PRESSURE IN HPA 1013.9 1014.6 1019.5 1012.8 1008.3 1004.3 1005.5 1007.0 1011.3 1015.5 1017.8 1014.6 1012.1 MAX. QNH PRESSURE IN HPA 1026.7 1021.6 1030.1 1021.2 1020.3 1011.0 1010.9 1011.9 1020.8 1026.9 1028.3 1035.3 1035.3 DAY 28 1 16 19 17 20 1 24 30 14 16 10 MIN. QNH PRESSURE IN HPA 1001.5 1004.6 1010.2 1000.9 993.8 997.9 998.9 1000.8 1006.8 1006.0 1000.8 994.7 993.8 DAY 18 6 9 15 3 12 9 15 5 22 9 27 MEAN QFF PRESSURE IN HPA 1014.4 1015.3 1019.9 1013.1 1008.6 1004.6 1005.6 ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1027.2 1022.1 1030.5 1021.5 1020.6 1011.3 1011.0 ****** ****** ****** ****** ****** ****** DAY 28 1 16 19 17 20 1 ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1001.8 1005.0 1010.5 1001.0 994.0 998.0 998.9 ****** ****** ****** ****** ****** ****** DAY 18 25 9 15 3 12 9 ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1009.6 1009.9 1014.4 1007.9 1003.5 999.4 1000.5 1001.9 1006.1 1010.8 1013.4 1010.2 1007.3 MAX. QFE PRESSURE IN HPA 1021.9 1017.1 1024.7 1016.6 1015.4 1006.2 1006.4 1006.6 1015.8 1023.2 1023.9 1030.9 1030.9 DAY 28 1 16 19 17 20 1 3 29 14 16 10 MIN. QFE PRESSURE IN HPA 997.6 999.7 1004.7 995.9 988.0 991.4 993.3 995.1 1001.2 1000.9 996.8 989.7 988.0 DAY 18 6 9 11 3 12 9 15 5 22 9 27 MEAN QNH PRESSURE IN HPA 1013.1 1013.5 1018.0 1011.4 1007.0 1002.9 1004.0 1005.4 1009.6 1014.3 1017.0 1013.7 1010.8 MAX. QNH PRESSURE IN HPA 1025.5 1020.6 1028.3 1020.1 1018.9 1009.7 1009.9 1010.1 1019.3 1026.8 1027.5 1034.5 1034.5 DAY 28 1 16 19 17 20 1 3 29 14 16 10 MIN. QNH PRESSURE IN HPA 1001.1 1003.2 1008.2 999.4 991.5 994.9 996.8 998.6 1004.7 1004.4 1000.3 993.2 991.5 DAY 18 6 9 11 3 12 9 15 5 22 9 27 MEAN QFF PRESSURE IN HPA 1013.5 1013.9 1018.4 1011.7 1007.2 1003.2 1004.1 ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1025.9 1021.2 1028.7 1020.5 1019.2 1010.0 1010.0 ****** ****** ****** ****** ****** ****** DAY 28 1 16 19 17 20 1 ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1001.4 1003.7 1008.5 999.6 991.6 995.0 996.8 ****** ****** ****** ****** ****** ****** DAY 18 6 9 11 3 12 9 ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1010.2 1010.4 1014.6 1007.9 1003.6 999.5 1000.2 1001.7 1006.0 1011.1 1014.0 1011.0 1007.5 MAX. QFE PRESSURE IN HPA 1021.9 1017.5 1024.5 1016.6 1014.8 1005.8 1006.6 1007.2 1018.7 1023.3 1024.3 1031.2 1031.2 DAY 28 1 16 19 17 2 1 3 29 14 15 10 MIN. QFE PRESSURE IN HPA 999.1 999.8 1004.2 995.7 987.3 991.2 992.4 994.2 1000.4 1000.5 999.4 990.5 987.3 DAY 18 3 9 11 3 12 9 14 5 22 8 27 MEAN QNH PRESSURE IN HPA 1013.7 1014.0 1018.1 1011.4 1007.1 1003.0 1003.7 1005.2 1009.6 1014.6 1017.5 1014.6 1011.0 MAX. QNH PRESSURE IN HPA 1025.5 1021.1 1028.1 1020.1 1018.3 1009.3 1010.1 1010.7 1022.3 1026.9 1027.9 1034.8 1034.8 DAY 28 1 16 19 17 2 1 3 29 14 15 10 MIN. QNH PRESSURE IN HPA 1002.6 1003.3 1007.7 999.2 990.8 994.7 995.9 997.7 1003.9 1004.0 1002.9 994.0 990.8 DAY 18 3 9 11 3 12 9 14 5 22 8 27 MEAN QFF PRESSURE IN HPA 1014.2 1014.4 1018.6 1011.7 1007.3 1003.1 1003.8 1005.3 1009.7 1014.9 1017.9 1014.5 1011.3 MAX. QFF PRESSURE IN HPA 1025.9 1021.6 1028.5 1020.5 1018.6 1009.6 1010.3 1010.8 1022.6 1027.2 1028.3 1035.3 1035.3 DAY 28 1 16 19 17 20 1 3 29 14 15 10 MIN. QFF PRESSURE IN HPA 1003.0 1003.8 1008.1 999.4 990.9 994.8 995.9 997.8 1004.0 1004.2 1003.2 994.3 990.9 DAY 18 3 9 11 3 12 9 14 5 22 9 27 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1010.7 1011.2 1015.5 1008.5 1004.9 1000.6 1001.5 ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 1022.0 1019.0 1024.9 1017.2 1015.3 1007.5 1007.7 ****** ****** ****** ****** ****** ****** DAY 22 28 2 19 17 2 1 ** ** ** ** ** MIN. QFE PRESSURE IN HPA 1000.0 998.7 1004.8 996.7 990.6 992.4 993.5 ****** ****** ****** ****** ****** ****** DAY 18 3 9 11 3 12 9 ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1014.2 1014.7 1019.0 1012.0 1008.4 1004.1 1005.0 ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1025.6 1022.6 1028.5 1020.7 1018.8 1011.0 1011.2 ****** ****** ****** ****** ****** ****** DAY 22 28 2 19 17 2 1 ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1003.5 1002.2 1008.3 1000.2 994.1 995.9 997.0 ****** ****** ****** ****** ****** ****** DAY 18 3 9 11 3 12 9 ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1014.7 1015.2 1019.6 1012.3 1008.6 1004.2 1005.1 ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1026.0 1023.0 1029.0 1021.1 1019.1 1011.2 1011.4 ****** ****** ****** ****** ****** ****** DAY 22 28 2 19 17 2 1 ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1003.9 1002.7 1008.7 1000.4 994.3 996.0 997.1 ****** ****** ****** ****** ****** ****** DAY 18 3 9 11 3 12 9 ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1010.6 1011.0 1015.2 1008.4 1005.2 1001.0 1001.6 ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 1022.7 1019.4 1024.0 1017.5 1015.1 1007.1 1007.7 ****** ****** ****** ****** ****** ****** DAY 22 28 2 4 17 2 1 ** ** ** ** ** MIN. QFE PRESSURE IN HPA 999.9 998.0 1005.0 996.3 991.8 993.7 993.9 ****** ****** ****** ****** ****** ****** DAY 18 3 9 15 3 12 9 ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1014.1 1014.5 1018.8 1011.9 1008.7 1004.5 1005.1 ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1026.3 1023.0 1027.6 1021.1 1018.6 1010.6 1011.2 ****** ****** ****** ****** ****** ****** DAY 22 28 2 4 17 2 1 ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1003.4 1001.5 1008.5 999.8 995.3 997.2 997.4 ****** ****** ****** ****** ****** ****** DAY 18 3 9 15 3 12 9 ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1014.5 1015.3 1019.2 1012.2 1008.9 1004.6 1005.2 ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1026.7 1023.4 1028.1 1021.3 1019.0 1010.7 1011.4 ****** ****** ****** ****** ****** ****** DAY 22 28 2 4 17 2 1 ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1003.7 1002.0 1008.8 999.9 995.5 997.3 997.4 ****** ****** ****** ****** ****** ****** DAY 18 3 9 15 3 12 9 ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.5 6.0 7.1 13.2 22.0 27.8 28.3 27.6 21.9 12.8 8.8 5.2 15.5 MINIMUN AIR TEMPERATURE (C) -0.2 1.6 2.1 5.8 13.0 17.6 19.6 20.8 15.4 8.8 3.9 0.7 9.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 3 11 16 1 0 0 0 31 DAYS WITH MINIMUM TEMP. <=-4 3 0 0 0 0 0 0 0 0 0 0 5 8 DAYS WITH FREEZING MIN.<= 0 16 10 6 0 0 0 0 0 0 0 2 12 46 TEMPERATURE RECORDS LOWEST(C) -4.6 -3.5 -2.6 1.4 6.2 14.2 15.0 14.5 6.0 3.6 -2.5 -8.4 -8.4 DAY 12 2 2 6 1 1 3 30 24 28 30 28 MAXIMUM AIR TEMPERATURE (C) 10.1 8.9 10.6 17.9 27.4 33.6 33.3 31.9 26.3 15.4 11.9 8.2 19.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 4 25 26 21 4 0 0 0 80 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 1 1 TEMPERATURE RECORDS HIGHEST(C) 22.0 20.4 18.6 29.5 32.4 38.0 37.4 38.0 31.6 29.2 19.0 18.0 38.0 DAY 30 24 5 23 25 19 31 9 16 1 21 17 DIF. BETWEEN (MAX.-MIN.) (C) 10.3 7.3 8.5 12.1 14.4 16.0 13.7 11.1 10.9 6.6 8.0 7.5 10.5 MEAN DAILY TEMP. (MDT) (C) 4.9 5.3 6.4 11.9 20.2 25.6 26.4 26.3 20.8 12.1 7.9 4.4 14.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 20.0 138.3 164.8 166.1 34.9 2.7 0.0 0.0 526.8 HEATING DEG. DAYS(BASE 18 0C) 404.8 355.9 360.5 184.2 6.0 0.0 0.0 0.0 13.4 191.9 293.8 420.6 2231.3 DEWPOINT (MEAN C) 0.8 2.9 3.2 6.2 12.7 14.3 19.5 18.4 13.3 8.7 5.6 2.5 9.0 MIXING RATIO (G/KG) 4.04 4.74 4.85 6.10 9.41 10.47 14.71 13.65 9.77 7.13 5.74 4.70 7.94 VAPOUR PRESSURE (HPA) 6.52 7.66 7.78 9.77 14.95 16.59 23.12 21.49 15.56 11.51 9.26 7.57 12.65 SATURATION DEF. (HPA) 2.94 2.05 2.62 6.28 12.52 22.41 16.70 16.59 11.67 3.97 2.37 1.58 8.47 RELATIVE HUMIDITY (MEAN %) 75 83 79 67 59 48 61 60 61 79 82 85 70 RELATIVE HUMIDITY (MAX. %) 90 94 95 88 85 73 82 80 84 92 93 94 88 RELATIVE HUMIDITY (MIN. %) 61 70 65 52 42 32 47 46 44 67 70 74 56 RELATIVE HUMIDITY (MEAN% 03UTC) 86 92 94 88 85 73 82 79 82 92 92 92 86 RELATIVE HUMIDITY (MEAN% 09UTC) 66 79 72 59 47 40 55 51 51 72 76 79 62 RELATIVE HUMIDITY (MEAN% 15UTC) 77 82 75 62 53 40 54 56 58 80 86 88 68 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 2.2 23.3 61.1 11.1 19.2 2.0 28.5 8.7 12.4 109.2 3.8 37.0 318.5 DAYS WITH PRECIPITATION >=10 0 0 2 0 1 0 2 0 0 2 0 0 7 DAYS WITH PRECIPITATION >= 5 0 2 4 1 2 0 2 0 1 10 0 4 26 DAYS WITH PRECIPITATION >= 1 1 6 7 2 4 1 2 4 3 14 1 7 52 DAYS WITH PRECIPITATION 4 12 11 6 7 3 5 6 6 20 6 11 97 GREATEST DAILY PRECIPITATION 1.0 7.0 17.0 7.5 10.0 2.0 14.0 3.0 6.0 21.0 1.8 9.0 21.0 DAY 18 5 14 4 22 5 3 28 23 6 7 7 DAY WITH THUNDER STORM 0 0 0 0 3 1 1 1 0 1 0 0 7 DAYS WITH SNOW OR SLEET 0 0 3 0 0 0 0 0 0 0 0 1 4 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 1 0 2 3 WIND DIRECTION (PREVAILING) 135 135 135 135 135 135 135 135 135 135 135 270 135 PREVAILING WIND SPEED(KNOTS) 11.9 9.9 9.3 10.2 12.6 10.4 10.3 10.8 8.1 8.6 6.6 6.3 10.2 PREVAILING WIND PERCENT 20.6 24.3 32.9 27.3 34.8 30.7 40.1 41.8 22.0 25.7 22.2 21.0 28.7 CALMS PERCENT OF WIND 23.2 34.3 25.8 25.3 19.4 14.7 21.7 13.1 21.3 40.1 31.9 38.5 25.6 NO. OF WIND OBSERVATION 155 140 155 150 155 150 152 153 150 152 144 143 1799 VECTOR WIND DIRECTION (MEAN) 156 133 124 134 124 112 120 121 97 129 206 180 127 VECTOR WIND MAGNITUDE(KNOTS) 1.1 2.1 2.3 2.5 4.2 3.5 5.1 5.0 1.9 2.2 0.7 1.9 2.5 WIND STEADINESES (MEAN %) 20.4 46.7 44.2 43.1 59.2 55.6 77.3 71.4 38.8 55.0 20.0 33.9 45.5 WIND SPEED (MEAN KNOTS) 5.4 4.5 5.2 5.8 7.1 6.3 6.6 7.0 4.9 4.0 3.5 5.6 5.5 FASTEST WIND DIRECTION 150 140 150 160 120 150 130 150 140 100 350 160 160 FASTEST WIND SPEED (KNOTS) 31 35 27 25 27 23 23 23 23 23 16 39 39 DAY 28 26 10 24 2 11 7 11 22 2 3 13 DAYS WITH SKY CLEAR (0-2)/8 7 5 4 11 9 14 20 16 12 4 9 5 116 DAYS WITH P.CLOUDY (3-6)/8 8 7 10 9 14 13 10 9 9 11 9 11 120 DAYS WITH CLOUDY (7-8)/8 16 16 17 10 8 3 1 6 9 16 12 15 129 DAYS WITH VISIBILITY =< 2 KM 4 12 8 3 2 2 2 0 3 6 8 10 60 DURATION OF SUNSHINE HOURS 104.8 92.7 94.1 199.9 239.4 259.2 313.4 234.5 164.9 93.7 109.1 79.3 1985.0 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1010.3 1012.1 1007.2 1007.8 1004.4 1002.5 1001.9 1001.9 1007.6 1016.9 1014.1 1009.8 1008.0 MAX. QFE PRESSURE IN HPA 1029.7 1027.1 1019.8 1017.9 1014.6 1010.6 1011.0 1010.6 1016.5 1027.5 1032.0 1026.1 1032.0 DAY-HOUR 20- 9 1- 3 23- 6 1- 6 13- 6 6- 6 10- 9 28- 6 23- 6 28- 6 30- 6 27- 6 MIN. QFE PRESSURE IN HPA 995.7 994.9 992.4 990.5 991.7 994.4 992.5 992.7 996.9 1002.5 998.9 994.2 990.5 DAY-HOUR 10-12 25-15 19-12 19- 9 23- 3 18-15 6-15 18-12 5-12 2-12 21- 3 23-12 MEAN QNH PRESSURE IN HPA 1013.8 1015.6 1010.7 1011.3 1007.9 1006.0 1005.4 1005.4 1011.2 1020.4 1017.7 1013.3 1011.6 MAX. QNH PRESSURE IN HPA 1033.3 1030.7 1023.4 1021.5 1018.1 1014.1 1014.5 1014.1 1020.0 1031.1 1035.6 1029.7 1035.6 DAY-HOUR 20- 9 1- 3 23- 6 1- 6 13- 6 6- 6 10- 9 28- 6 23- 6 28- 6 30- 6 27- 6 MIN. QNH PRESSURE IN HPA 999.2 998.4 995.9 994.0 995.2 997.9 996.0 996.2 1000.4 1006.0 1002.4 997.7 994.0 DAY-HOUR 10-12 25-15 19-12 19- 9 23- 3 18-15 6-15 18-12 5-12 2-12 21- 3 23-12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1010.0 1012.5 1007.2 1008.5 1005.3 1003.5 1003.3 1003.1 1008.4 1016.5 1013.8 1008.9 1008.4 MAX. QFE PRESSURE IN HPA 1028.8 1027.1 1019.1 1017.5 1013.8 1009.9 1010.8 1010.4 1015.8 1025.9 1030.6 1025.3 1030.6 DAY 21 1 23 1 13 6 10 28 23 27 29 27 MIN. QFE PRESSURE IN HPA 996.6 999.8 995.0 996.0 991.7 995.7 995.7 995.4 1000.1 1006.5 998.9 998.2 991.7 DAY 10 25 19 19 23 2 8 18 22 2 21 23 MEAN QNH PRESSURE IN HPA 1013.6 1016.0 1010.8 1012.0 1008.8 1007.0 1006.8 1006.6 1011.9 1020.0 1017.3 1012.4 1011.9 MAX. QNH PRESSURE IN HPA 1032.4 1030.7 1022.7 1021.1 1017.3 1013.4 1014.3 1013.9 1019.3 1029.5 1034.2 1028.9 1034.2 DAY 21 1 23 1 13 6 10 28 23 27 29 27 MIN. QNH PRESSURE IN HPA 1000.1 1003.3 998.5 999.5 995.2 999.2 999.2 998.9 1003.6 1010.0 1002.4 1001.7 995.2 DAY 10 25 19 19 23 2 8 18 22 2 21 23 MEAN QFF PRESSURE IN HPA 1014.0 1016.4 1011.2 1012.4 1009.0 1007.2 1006.9 1006.7 1012.1 1020.3 1017.7 1012.8 1012.2 MAX. QFF PRESSURE IN HPA 1032.9 1031.2 1023.1 1021.5 1017.6 1013.6 1014.5 1014.1 1019.6 1029.9 1034.7 1029.4 1034.7 DAY 21 1 23 1 13 6 10 28 23 27 29 27 MIN. QFF PRESSURE IN HPA 1000.5 1003.6 998.8 999.8 995.3 999.3 999.3 999.0 1003.8 1010.2 1002.8 1002.1 995.3 DAY 10 25 19 19 23 2 8 18 22 2 21 23 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1011.2 1013.3 1008.0 1009.0 1005.7 1003.9 1003.2 1003.3 1008.9 1017.6 1015.4 1010.5 1009.2 MAX. QFE PRESSURE IN HPA 1028.8 1026.7 1019.8 1017.9 1014.6 1010.6 1010.8 1010.6 1016.5 1027.5 1032.0 1026.1 1032.0 DAY 21 1 23 1 13 6 10 28 23 28 30 27 MIN. QFE PRESSURE IN HPA 998.1 999.1 994.4 995.0 993.7 997.7 995.9 995.0 1000.3 1006.1 1000.0 996.8 993.7 DAY 10 25 19 19 23 19 8 18 22 2 21 23 MEAN QNH PRESSURE IN HPA 1014.7 1016.8 1011.6 1012.5 1009.2 1007.4 1006.7 1006.8 1012.5 1021.1 1018.9 1014.0 1012.7 MAX. QNH PRESSURE IN HPA 1032.4 1030.3 1023.4 1021.5 1018.1 1014.1 1014.3 1014.1 1020.0 1031.1 1035.6 1029.7 1035.6 DAY 21 1 23 1 13 6 10 28 23 28 30 27 MIN. QNH PRESSURE IN HPA 1001.6 1002.6 997.9 998.5 997.2 1001.2 999.4 998.5 1003.8 1009.6 1003.5 1000.3 997.2 DAY 10 25 19 19 23 19 8 18 22 2 21 23 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 1010.5 1012.5 1007.4 1008.0 1004.5 1002.9 1002.1 1002.2 1007.9 1017.2 1014.3 1010.2 1008.3 MAX. QFE PRESSURE IN HPA 1029.7 1024.0 1018.9 1016.9 1014.2 1009.1 1011.0 1009.3 1016.3 1027.2 1031.0 1025.7 1031.0 DAY 20 1 22 1 13 6 10 28 23 28 29 27 MIN. QFE PRESSURE IN HPA 996.1 997.1 993.0 990.5 993.3 996.7 994.6 994.0 998.6 1004.6 1000.7 995.2 990.5 DAY 10 25 19 19 23 18 8 18 5 2 3 23 MEAN QNH PRESSURE IN HPA 1014.1 1016.1 1010.9 1011.5 1008.0 1006.4 1005.6 1005.7 1011.4 1020.8 1017.9 1013.8 1011.8 MAX. QNH PRESSURE IN HPA 1033.3 1027.6 1022.5 1020.4 1017.7 1012.6 1014.5 1012.8 1019.8 1030.8 1034.6 1029.3 1034.6 DAY 20 1 22 1 13 6 10 28 23 28 29 27 MIN. QNH PRESSURE IN HPA 999.6 1000.6 996.5 994.0 996.8 1000.2 998.1 997.5 1002.1 1008.1 1004.2 998.7 994.0 DAY 10 25 19 19 23 18 8 18 5 2 3 23 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 1009.4 1011.1 1006.4 1006.8 1003.0 1001.3 1000.6 1000.7 1006.5 1016.4 1013.1 1009.4 1007.1 MAX. QFE PRESSURE IN HPA 1028.5 1021.0 1018.2 1014.7 1011.9 1007.0 1010.0 1008.4 1015.2 1026.4 1029.9 1024.2 1029.9 DAY 20 6 22 1 13 6 10 27 23 28 29 27 MIN. QFE PRESSURE IN HPA 995.7 995.1 992.4 991.1 992.0 995.4 993.2 992.7 996.9 1002.5 1001.9 994.2 991.1 DAY 10 25 19 19 23 19 6 18 5 2 3 23 MEAN QNH PRESSURE IN HPA 1013.0 1014.6 1009.9 1010.3 1006.5 1004.8 1004.1 1004.2 1010.0 1019.9 1016.6 1012.9 1010.6 MAX. QNH PRESSURE IN HPA 1032.1 1024.6 1021.8 1018.2 1015.4 1010.5 1013.5 1011.9 1018.7 1030.0 1033.5 1027.8 1033.5 DAY 20 6 22 1 13 6 10 27 23 28 29 27 MIN. QNH PRESSURE IN HPA 999.2 998.6 995.9 994.6 995.5 998.9 996.7 996.2 1000.4 1006.0 1005.4 997.7 994.6 DAY 10 25 19 19 23 19 6 18 5 2 3 23 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1010.2 1011.3 1006.9 1006.9 1003.4 1001.2 1000.2 1000.6 1006.6 1016.7 1014.1 1010.0 1007.3 MAX. QFE PRESSURE IN HPA 1029.7 1020.7 1018.2 1014.6 1011.4 1007.0 1009.1 1009.3 1015.2 1026.6 1030.9 1024.3 1030.9 DAY 20 6 22 5 13 5 10 27 23 28 29 27 MIN. QFE PRESSURE IN HPA 998.4 994.9 996.5 991.3 993.0 994.4 992.5 993.7 998.0 1003.7 1002.1 995.1 991.3 DAY 9 25 19 19 24 18 6 14 5 2 20 23 MEAN QNH PRESSURE IN HPA 1013.8 1014.8 1010.4 1010.4 1006.9 1004.7 1003.7 1004.1 1010.1 1020.3 1017.6 1013.5 1010.8 MAX. QNH PRESSURE IN HPA 1033.3 1024.3 1021.8 1018.1 1014.9 1010.5 1012.6 1012.8 1018.7 1030.2 1034.5 1027.9 1034.5 DAY 20 6 22 5 13 5 10 27 23 28 29 27 MIN. QNH PRESSURE IN HPA 1001.9 998.4 1000.0 994.8 996.5 997.9 996.0 997.2 1001.5 1007.2 1005.6 998.6 994.8 DAY 9 25 19 19 24 18 6 14 5 2 20 23 MEAN QFF PRESSURE IN HPA 1014.2 1015.3 1010.8 1010.7 1007.1 1004.8 1004.1 1004.5 1010.3 1019.9 1017.7 1012.6 1011.0 MAX. QFF PRESSURE IN HPA 1033.8 1024.7 1022.2 1018.6 1015.2 1010.7 1012.8 1013.0 1019.0 1030.1 1035.0 1028.4 1035.0 DAY 20 6 22 5 13 5 10 27 23 27 29 27 MIN. QFF PRESSURE IN HPA 1002.3 998.7 1000.4 995.1 996.6 998.0 998.1 997.3 1001.7 1007.4 1006.0 999.0 995.1 DAY 9 25 19 19 24 18 7 14 5 2 20 23 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 PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.4 4.4 8.8 15.5 19.6 27.0 28.6 26.3 22.8 16.7 9.3 6.7 15.8 MINIMUN AIR TEMPERATURE (C) -0.0 0.1 3.5 8.5 12.2 18.5 20.7 19.8 16.4 11.3 4.6 1.4 9.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 4 16 11 0 0 0 0 31 DAYS WITH MINIMUM TEMP. <=-4 1 2 0 0 0 0 0 0 0 0 0 3 6 DAYS WITH FREEZING MIN.<= 0 19 17 5 0 0 0 0 0 0 0 2 11 54 TEMPERATURE RECORDS LOWEST(C) -4.0 -4.0 -2.6 1.0 5.0 13.6 15.6 15.2 12.5 5.2 -2.2 -4.6 -4.6 DAY 30 6 7 6 4 1 28 26 30 23 15 29 MAXIMUM AIR TEMPERATURE (C) 6.7 8.0 12.8 20.3 24.2 32.4 33.3 31.0 27.5 20.8 13.5 10.9 20.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 23 29 20 8 0 0 0 82 DAYS WITH MAXIMUM TEMP. <= 0 1 1 0 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS HIGHEST(C) 15.0 19.2 19.4 25.5 31.5 37.8 36.6 34.6 34.4 26.5 23.2 18.6 37.8 DAY 9 22 16 23 19 13 13 1 19 7 2 11 DIF. BETWEEN (MAX.-MIN.) (C) 6.7 7.9 9.3 11.8 12.0 13.9 12.6 11.2 11.1 9.5 8.9 9.5 10.4 MEAN DAILY TEMP. (MDT) (C) 3.3 4.0 8.1 14.4 18.2 25.5 27.0 25.4 21.9 16.1 9.1 6.1 14.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 13.7 135.0 185.6 137.2 48.3 0.0 0.0 0.0 519.9 HEATING DEG. DAYS(BASE 18 0C) 454.1 405.6 306.3 110.1 50.3 0.0 0.0 0.0 0.8 68.7 268.4 368.1 2032.5 DEWPOINT (MEAN C) 0.5 1.3 4.6 9.2 11.7 16.4 18.8 17.5 14.1 11.2 4.9 1.9 9.3 MIXING RATIO (G/KG) 3.97 4.24 5.38 7.45 8.85 11.95 13.94 12.79 10.28 8.46 5.49 4.52 8.11 VAPOUR PRESSURE (HPA) 6.43 6.84 8.62 11.91 14.10 18.82 21.90 20.18 16.34 13.55 8.83 7.27 12.90 SATURATION DEF. (HPA) 1.58 1.84 3.04 6.55 9.86 18.17 18.36 15.03 12.47 6.15 3.29 2.90 8.27 RELATIVE HUMIDITY (MEAN %) 83 82 77 69 64 56 58 61 60 72 77 74 69 RELATIVE HUMIDITY (MAX. %) 94 94 94 94 90 81 81 86 81 88 92 88 89 RELATIVE HUMIDITY (MIN. %) 70 70 62 52 47 40 43 45 44 58 62 60 54 RELATIVE HUMIDITY (MEAN% 03UTC) 91 93 94 93 90 81 82 85 81 87 89 87 88 RELATIVE HUMIDITY (MEAN% 09UTC) 75 75 70 59 53 47 51 53 52 65 68 65 61 RELATIVE HUMIDITY (MEAN% 15UTC) 88 79 74 64 57 50 50 53 57 70 80 76 67 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 18.1 4.2 18.9 54.9 43.8 30.9 7.7 34.0 5.7 16.7 30.3 30.2 295.4 DAYS WITH PRECIPITATION >=10 1 0 0 3 1 1 0 1 0 0 0 1 8 DAYS WITH PRECIPITATION >= 5 1 0 0 3 4 2 1 2 0 1 3 4 21 DAYS WITH PRECIPITATION >= 1 5 1 6 4 7 3 2 6 2 5 6 4 51 DAYS WITH PRECIPITATION 9 7 11 11 9 9 5 6 3 8 13 6 97 GREATEST DAILY PRECIPITATION 11.0 3.4 4.0 24.0 15.0 22.0 5.0 18.0 4.0 7.0 7.3 11.0 24.0 DAY 16 17 27 26 29 19 26 5 12 20 12 27 DAY WITH THUNDER STORM 0 1 0 0 1 6 1 1 2 4 0 0 16 DAYS WITH SNOW OR SLEET 1 2 1 0 0 0 0 0 0 0 0 0 4 DAYS WITH DUST 0 2 0 0 0 0 0 0 0 0 0 0 2 WIND DIRECTION (PREVAILING) 270 90 90 90 90 360 90 90 90 90 90 225 90 PREVAILING WIND SPEED(KNOTS) 7.4 9.9 8.4 9.4 9.2 6.7 10.8 12.3 11.0 10.0 11.0 7.7 10.3 PREVAILING WIND PERCENT 19.4 26.4 20.6 25.7 24.7 16.2 26.8 34.2 32.7 26.5 17.3 18.7 22.8 CALMS PERCENT OF WIND 36.8 25.7 31.6 19.6 22.7 14.9 18.3 19.4 18.7 32.9 23.3 32.3 24.8 NO. OF WIND OBSERVATION 155 144 155 148 154 148 153 155 150 155 150 155 1822 VECTOR WIND DIRECTION (MEAN) 220 109 86 113 59 7 43 81 79 106 174 210 88 VECTOR WIND MAGNITUDE(KNOTS) 1.5 2.8 1.4 3.2 2.2 1.9 2.8 4.1 2.8 2.3 0.7 1.3 1.5 WIND STEADINESES (MEAN %) 34.1 50.0 24.6 45.7 34.4 29.2 40.6 54.7 39.4 43.4 12.3 26.5 24.6 WIND SPEED (MEAN KNOTS) 4.4 5.6 5.7 7.0 6.4 6.5 6.9 7.5 7.1 5.3 5.7 4.9 6.1 FASTEST WIND DIRECTION 100 110 120 110 110 270 80 100 100 80 100 100 270 FASTEST WIND SPEED (KNOTS) 29 27 27 25 25 39 19 23 27 19 27 25 39 DAY 31 25 16 19 1 19 10 29 23 21 17 4 DAYS WITH SKY CLEAR (0-2)/8 4 4 4 4 10 16 13 11 14 12 7 11 110 DAYS WITH P.CLOUDY (3-6)/8 10 8 11 14 13 10 12 10 8 6 9 10 121 DAYS WITH CLOUDY (7-8)/8 17 17 16 12 8 4 6 10 8 13 14 10 135 DAYS WITH VISIBILITY =< 2 KM 13 10 7 2 2 0 3 1 1 4 6 4 53 DURATION OF SUNSHINE HOURS 80.3 84.3 119.9 183.6 229.6 281.1 260.1 200.2 192.2 139.0 109.2 130.6 2010.1 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1012.8 1011.7 1005.5 1007.4 1006.0 999.2 999.8 1002.1 1006.8 1011.1 1010.2 1008.1 1006.7 MAX. QFE PRESSURE IN HPA 1023.6 1026.5 1019.7 1021.8 1018.9 1005.7 1006.6 1012.0 1017.1 1023.5 1024.0 1018.8 1026.5 DAY-HOUR 17- 6 6- 6 17- 6 8- 6 5- 6 27- 6 27- 6 21- 6 24- 6 16- 6 5-15 5- 6 MIN. QFE PRESSURE IN HPA 999.9 991.0 987.2 995.4 994.8 988.5 993.4 991.4 994.3 995.2 997.4 988.7 987.2 DAY-HOUR 28-12 29-15 3- 3 22-15 28-15 14-15 8-15 28-15 8-15 30-12 8-12 26- 3 MEAN QNH PRESSURE IN HPA 1016.4 1015.3 1009.0 1010.9 1009.5 1002.7 1003.3 1005.6 1010.3 1014.6 1013.7 1011.6 1010.2 MAX. QNH PRESSURE IN HPA 1027.2 1030.1 1023.3 1025.4 1022.5 1009.2 1010.1 1015.5 1020.6 1027.1 1027.6 1022.4 1030.1 DAY-HOUR 17- 6 6- 6 17- 6 8- 6 5- 6 27- 6 27- 6 21- 6 24- 6 16- 6 5-15 5- 6 MIN. QNH PRESSURE IN HPA 1003.4 994.5 990.7 998.9 998.3 992.0 996.9 994.9 997.8 998.7 1000.9 992.2 990.7 DAY-HOUR 28-12 29-15 3- 3 22-15 28-15 14-15 8-15 28-15 8-15 30-12 8-12 26- 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 1012.8 1011.8 1005.5 1007.9 1006.2 1000.4 1000.6 1002.7 1007.5 1011.4 1010.4 1008.1 1007.1 MAX. QFE PRESSURE IN HPA 1022.5 1025.6 1019.1 1020.4 1018.3 1005.2 1005.7 1011.5 1016.3 1022.5 1022.8 1018.0 1025.6 DAY 17 6 17 8 5 8 27 21 24 16 6 5 MIN. QFE PRESSURE IN HPA 1001.1 996.7 987.2 996.6 996.0 995.4 996.5 994.4 996.2 1000.2 999.4 988.7 987.2 DAY 28 29 3 23 28 24 15 29 9 30 8 26 MEAN QNH PRESSURE IN HPA 1016.4 1015.4 1009.0 1011.4 1009.7 1003.9 1004.0 1006.2 1011.0 1014.9 1014.0 1011.6 1010.6 MAX. QNH PRESSURE IN HPA 1026.1 1029.2 1022.7 1024.0 1021.9 1008.7 1009.2 1015.0 1019.8 1026.1 1026.4 1021.6 1029.2 DAY 17 6 17 8 5 8 27 21 24 16 6 5 MIN. QNH PRESSURE IN HPA 1004.6 1000.2 990.7 1000.1 999.5 998.9 1000.0 997.9 999.7 1003.7 1002.9 992.2 990.7 DAY 28 29 3 23 28 24 15 29 9 30 8 26 MEAN QFF PRESSURE IN HPA 1016.8 1015.8 1009.4 1011.7 1010.0 1004.1 1004.2 1006.4 1011.2 1015.2 1014.3 1012.0 1010.9 MAX. QFF PRESSURE IN HPA 1026.5 1029.7 1023.1 1024.3 1022.2 1008.9 1009.4 1015.2 1020.1 1026.4 1026.7 1021.9 1029.7 DAY 17 6 17 8 5 27 27 21 24 16 6 5 MIN. QFF PRESSURE IN HPA 1005.1 1000.6 991.0 1000.3 999.7 999.1 1000.1 998.0 999.8 1004.0 1003.2 992.6 991.0 DAY 28 29 3 23 28 24 15 29 9 30 8 26 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1013.8 1012.8 1006.5 1008.7 1006.8 1000.6 1001.0 1003.3 1008.1 1012.3 1011.3 1009.1 1007.9 MAX. QFE PRESSURE IN HPA 1023.6 1026.5 1019.7 1021.8 1018.9 1005.7 1006.6 1012.0 1017.1 1023.5 1023.2 1018.8 1026.5 DAY 17 6 17 8 5 27 27 21 24 16 6 5 MIN. QFE PRESSURE IN HPA 1002.1 995.9 990.0 998.3 996.2 995.4 997.3 994.8 996.6 999.6 1000.1 989.6 989.6 DAY 28 29 3 23 28 14 15 29 9 30 8 26 MEAN QNH PRESSURE IN HPA 1017.3 1016.3 1010.0 1012.3 1010.4 1004.1 1004.5 1006.8 1011.6 1015.8 1014.8 1012.6 1011.4 MAX. QNH PRESSURE IN HPA 1027.2 1030.1 1023.3 1025.4 1022.5 1009.2 1010.1 1015.5 1020.6 1027.1 1026.8 1022.4 1030.1 DAY 17 6 17 8 5 27 27 21 24 16 6 5 MIN. QNH PRESSURE IN HPA 1005.6 999.4 993.5 1001.8 999.7 998.9 1000.8 998.3 1000.1 1003.1 1003.6 993.1 993.1 DAY 28 29 3 23 28 14 15 29 9 30 8 26 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 1013.1 1012.1 1005.8 1007.9 1006.4 999.4 1000.2 1002.4 1007.0 1011.2 1010.2 1008.2 1007.0 MAX. QFE PRESSURE IN HPA 1023.2 1025.2 1018.5 1021.6 1018.4 1004.7 1004.9 1010.8 1016.0 1023.3 1023.4 1017.5 1025.2 DAY 17 6 17 8 5 27 27 21 30 16 5 5 MIN. QFE PRESSURE IN HPA 1000.8 993.3 988.7 998.3 996.8 991.1 996.2 993.9 996.2 996.8 998.4 991.3 988.7 DAY 28 29 3 23 28 15 8 28 9 30 8 26 MEAN QNH PRESSURE IN HPA 1016.7 1015.6 1009.3 1011.4 1009.9 1002.9 1003.7 1005.9 1010.5 1014.7 1013.7 1011.7 1010.5 MAX. QNH PRESSURE IN HPA 1026.8 1028.8 1022.1 1025.2 1022.0 1008.2 1008.4 1014.3 1019.5 1026.9 1027.0 1021.1 1028.8 DAY 17 6 17 8 5 27 27 21 30 16 5 5 MIN. QNH PRESSURE IN HPA 1004.3 996.8 992.2 1001.8 1000.3 994.6 999.7 997.4 999.7 1000.3 1001.9 994.8 992.2 DAY 28 29 3 23 28 15 8 28 9 30 8 26 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 1012.1 1010.9 1004.6 1006.4 1005.3 998.0 998.9 1001.3 1005.6 1010.0 1009.2 1007.3 1005.8 MAX. QFE PRESSURE IN HPA 1022.3 1023.5 1015.7 1020.2 1017.1 1004.9 1003.7 1008.7 1015.2 1022.1 1023.3 1016.1 1023.5 DAY 17 6 23 8 5 27 26 21 30 16 5 5 MIN. QFE PRESSURE IN HPA 999.9 991.4 990.0 997.0 995.2 989.7 994.4 992.4 995.5 995.2 997.4 992.5 989.7 DAY 28 29 3 22 28 14 8 28 9 30 8 26 MEAN QNH PRESSURE IN HPA 1015.6 1014.4 1008.1 1009.9 1008.8 1001.4 1002.4 1004.8 1009.1 1013.6 1012.7 1010.9 1009.3 MAX. QNH PRESSURE IN HPA 1025.9 1027.1 1019.2 1023.8 1020.6 1008.4 1007.2 1012.2 1018.7 1025.7 1026.9 1019.6 1027.1 DAY 17 6 23 8 5 27 26 21 30 16 5 5 MIN. QNH PRESSURE IN HPA 1003.4 994.9 993.5 1000.5 998.7 993.2 997.9 995.9 999.0 998.7 1000.9 996.0 993.2 DAY 28 29 3 22 28 14 8 28 9 30 8 26 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1012.4 1011.2 1005.1 1006.3 1005.2 997.7 998.4 1001.1 1005.6 1010.7 1009.8 1007.8 1006.0 MAX. QFE PRESSURE IN HPA 1022.8 1023.8 1016.1 1019.4 1016.7 1003.1 1005.1 1009.3 1015.6 1021.8 1024.0 1016.6 1024.0 DAY 11 5 23 8 5 27 26 20 30 28 5 4 MIN. QFE PRESSURE IN HPA 1001.1 991.0 991.9 995.4 994.8 988.5 993.4 991.4 994.3 997.6 1001.1 993.5 988.5 DAY 28 29 4 22 28 14 8 28 8 30 19 25 MEAN QNH PRESSURE IN HPA 1016.0 1014.7 1008.6 1009.8 1008.8 1001.2 1001.9 1004.6 1009.1 1014.3 1013.4 1011.3 1009.5 MAX. QNH PRESSURE IN HPA 1026.4 1027.4 1019.6 1023.0 1020.2 1006.6 1008.6 1012.8 1019.1 1025.4 1027.6 1020.1 1027.6 DAY 11 5 23 8 5 27 26 20 30 28 5 4 MIN. QNH PRESSURE IN HPA 1004.6 994.5 995.4 998.9 998.3 992.0 996.9 994.9 997.8 1001.1 1004.6 997.0 992.0 DAY 28 29 4 22 28 14 8 28 8 30 19 25 MEAN QFF PRESSURE IN HPA 1016.4 1015.1 1009.0 1010.1 1009.0 1001.6 1002.0 1004.8 1009.3 1014.6 1013.7 1011.8 1009.8 MAX. QFF PRESSURE IN HPA 1026.8 1027.9 1020.1 1023.3 1020.6 1006.7 1008.8 1013.0 1019.4 1025.7 1027.9 1020.6 1027.9 DAY 11 5 23 8 5 27 26 20 30 28 5 4 MIN. QFF PRESSURE IN HPA 1005.1 994.8 995.8 999.1 998.4 992.0 997.0 995.0 997.9 1001.4 1005.0 997.4 992.0 DAY 28 29 4 22 28 14 8 28 8 30 19 25 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 PARSABAD MOGHAN (40700) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 39 39 N LONGITUDE 47 55 E DATA PROCESSING CENTER ELEVATION 31.9 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.1 4.6 11.1 17.2 21.8 27.4 30.3 29.0 23.0 16.1 10.7 5.6 16.7 MINIMUN AIR TEMPERATURE (C) -3.3 -2.8 3.8 7.6 12.2 17.0 21.7 20.3 15.8 11.3 6.2 1.2 9.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 19 12 4 0 0 0 35 DAYS WITH MINIMUM TEMP. <=-4 15 9 0 0 0 0 0 0 0 0 0 0 24 DAYS WITH FREEZING MIN.<= 0 27 26 1 0 0 0 0 0 0 0 3 11 68 TEMPERATURE RECORDS LOWEST(C) -10.0 -5.6 -2.0 1.0 4.5 13.0 18.4 14.8 8.4 5.0 -1.5 -3.0 -10.0 DAY 4 3 13 1 1 2 16 19 22 24 23 10 MAXIMUM AIR TEMPERATURE (C) 7.9 9.8 15.8 23.5 27.2 32.9 35.3 34.2 27.6 19.9 14.1 9.6 21.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 6 26 31 29 12 0 0 0 106 DAYS WITH MAXIMUM TEMP. <= 0 1 0 0 0 0 0 0 0 0 0 0 0 1 TEMPERATURE RECORDS HIGHEST(C) 14.4 24.0 27.0 32.0 33.0 36.2 39.2 36.6 35.4 29.2 21.2 17.6 39.2 DAY 19 28 26 28 23 19 31 5 2 1 4 19 DIF. BETWEEN (MAX.-MIN.) (C) 11.2 12.6 12.0 15.9 15.0 15.9 13.6 13.9 11.8 8.6 7.9 8.4 12.3 MEAN DAILY TEMP. (MDT) (C) 2.3 3.5 9.8 15.6 19.7 24.9 28.5 27.2 21.7 15.6 10.1 5.4 15.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 11.1 119.7 232.2 185.7 70.4 1.9 0.0 0.0 621.2 HEATING DEG. DAYS(BASE 18 0C) 487.6 405.9 253.8 78.3 11.3 0.0 0.0 0.0 13.4 89.1 235.8 389.8 1964.9 DEWPOINT (MEAN C) -3.2 -2.0 4.2 7.5 11.1 14.9 18.5 18.9 14.9 11.8 6.9 2.0 8.8 MIXING RATIO (G/KG) 3.04 3.32 5.22 6.61 8.40 10.92 13.72 14.09 10.97 8.73 6.38 4.45 7.99 VAPOUR PRESSURE (HPA) 4.93 5.40 8.38 10.60 13.40 17.28 21.59 22.15 17.39 13.98 10.24 7.19 12.71 SATURATION DEF. (HPA) 3.03 3.69 5.46 10.31 13.78 20.38 22.69 19.21 12.36 5.01 2.92 2.22 10.09 RELATIVE HUMIDITY (MEAN %) 67 67 66 57 54 50 52 57 64 78 80 79 64 RELATIVE HUMIDITY (MAX. %) 86 88 85 85 79 78 73 81 87 92 93 92 85 RELATIVE HUMIDITY (MIN. %) 49 48 50 38 37 34 38 43 47 65 65 66 48 RELATIVE HUMIDITY (MEAN% 03UTC) 82 86 85 85 78 78 73 81 87 90 92 90 84 RELATIVE HUMIDITY (MEAN% 09UTC) 55 56 58 47 46 41 44 49 55 71 71 71 55 RELATIVE HUMIDITY (MEAN% 15UTC) 70 65 60 49 49 42 45 50 59 76 82 82 61 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 2.8 11.4 17.1 0.3 13.1 2.3 0.0 13.0 61.6 105.2 9.0 15.0 250.8 DAYS WITH PRECIPITATION >=10 0 0 0 0 1 0 0 1 2 4 0 0 8 DAYS WITH PRECIPITATION >= 5 0 0 2 0 1 0 0 1 3 6 0 2 15 DAYS WITH PRECIPITATION >= 1 1 4 3 0 2 1 0 1 4 7 3 4 30 DAYS WITH PRECIPITATION 4 6 10 1 4 2 0 1 5 10 7 4 54 GREATEST DAILY PRECIPITATION 2.0 4.2 6.0 0.3 10.0 2.0 0.0 13.0 36.0 48.0 4.0 8.0 48.0 DAY 28 23 29 12 18