STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** 2.5 8.1 16.5 20.1 26.6 28.8 26.9 20.7 13.7 8.0 4.5 ***** MINIMUN AIR TEMPERATURE (C) -2.4 -2.3 2.4 7.4 9.5 13.8 16.0 13.0 10.5 4.5 0.7 0.3 6.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 1 0 0 0 0 0 1 DAYS WITH MINIMUM TEMP. <=-4 7 9 2 0 0 0 0 0 0 0 5 6 29 DAYS WITH FREEZING MIN.<= 0 19 17 7 0 0 0 0 0 0 2 12 16 73 TEMPERATURE RECORDS LOWEST(C) -7.2 -12.0 -7.6 2.4 4.2 7.8 12.0 6.2 2.0 -1.0 -7.0 -5.8 -12.0 DAY 16 14 12 8 6 24 15 23 29 14 25 21 MAXIMUM AIR TEMPERATURE (C) 5.8 6.6 12.1 20.9 25.5 31.7 34.1 33.4 29.4 21.8 15.5 9.7 20.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 4 22 30 31 18 0 0 0 105 DAYS WITH MAXIMUM TEMP. <= 0 0 3 0 0 0 0 0 0 0 0 0 0 3 TEMPERATURE RECORDS HIGHEST(C) 12.0 15.4 19.6 28.2 35.6 35.8 41.0 38.5 38.0 25.4 26.0 17.4 41.0 DAY 31 27 30 22 31 12 8 6 9 27 4 1 DIF. BETWEEN (MAX.-MIN.) (C) 8.2 8.9 9.7 13.5 16.0 17.9 18.1 20.4 18.9 17.3 14.8 9.4 14.5 MEAN DAILY TEMP. (MDT) (C) 1.7 2.2 7.3 14.2 17.5 22.7 25.1 23.2 20.0 13.1 8.1 5.0 13.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 7.3 57.9 126.2 72.6 32.0 0.0 0.0 0.0 296.1 HEATING DEG. DAYS(BASE 18 0C) 308.3 385.8 255.2 99.5 40.0 0.6 0.0 0.0 31.2 151.1 295.8 402.7 1970.1 DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** ***** 3.5 -0.2 -1.9 -0.8 ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** ****** 5.82 4.43 3.90 4.28 ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** ****** 8.16 6.25 5.51 6.02 ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** ****** 18.49 10.52 6.03 2.91 ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** *** 37 42 54 72 *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** *** *** *** *** 57 64 76 87 *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** *** *** *** *** 19 25 34 49 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** *** 53 61 72 83 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** *** *** *** *** 24 29 39 56 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** *** 27 36 49 73 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 39.4 33.3 89.7 29.4 17.8 0.0 0.2 0.0 0.1 0.6 1.8 100.7 313.0 DAYS WITH PRECIPITATION >=10 1 1 3 1 0 0 0 0 0 0 0 4 10 DAYS WITH PRECIPITATION >= 5 4 3 6 3 1 0 0 0 0 0 0 5 22 DAYS WITH PRECIPITATION >= 1 6 6 11 5 5 0 0 0 0 0 0 7 40 DAYS WITH PRECIPITATION 11 13 20 7 11 0 2 0 2 5 4 11 86 GREATEST DAILY PRECIPITATION 11.0 12.0 22.0 10.0 7.0 0.0 0.2 0.0 0.1 0.2 0.9 36.0 36.0 DAY 26 22 15 1 7 ** 14 ** 26 6 19 15 DAY WITH THUNDER STORM 0 1 1 1 5 0 0 0 0 0 0 1 9 DAYS WITH SNOW OR SLEET 4 9 2 0 0 0 0 0 0 0 0 2 17 DAYS WITH DUST 0 0 1 2 4 0 1 9 3 0 0 0 20 WIND DIRECTION (PREVAILING) *** 270 90 270 270 90 90 90 90 45 270 270 *** PREVAILING WIND SPEED(KNOTS) **** 5.2 6.6 7.7 7.9 7.7 8.0 10.5 7.8 3.5 4.6 5.0 **** PREVAILING WIND PERCENT ***** 17.5 19.9 14.8 13.1 16.0 14.1 26.3 17.7 7.1 7.6 7.4 ***** CALMS PERCENT OF WIND ***** 50.8 42.6 51.1 50.4 59.3 56.4 51.3 54.5 62.1 66.4 73.3 ***** NO. OF WIND OBSERVATION 109 120 141 135 137 150 163 156 231 224 223 243 2032 VECTOR WIND DIRECTION (MEAN) *** 181 95 232 194 85 112 103 101 339 348 318 *** VECTOR WIND MAGNITUDE(KNOTS) **** 0.1 0.5 0.7 0.6 1.0 0.7 2.9 1.0 0.2 0.6 0.4 **** WIND STEADINESES (MEAN %) ***** 4.2 16.1 21.2 16.7 34.5 22.6 74.4 34.5 11.8 40.0 33.3 ***** WIND SPEED (MEAN KNOTS) **** 2.4 3.1 3.3 3.6 2.9 3.1 3.9 2.9 1.7 1.5 1.2 **** FASTEST WIND DIRECTION *** 110 270 230 250 330 260 90 210 270 70 250 *** FASTEST WIND SPEED (KNOTS) *** 14 14 14 19 14 16 25 19 10 10 12 *** DAY ** 20 11 5 10 18 14 20 24 9 4 13 DAYS WITH SKY CLEAR (0-2)/8 8 5 5 8 7 28 28 27 25 20 16 10 187 DAYS WITH P.CLOUDY (3-6)/8 9 12 8 18 17 2 3 4 5 8 9 13 108 DAYS WITH CLOUDY (7-8)/8 10 11 18 3 6 0 0 0 0 3 5 8 64 DAYS WITH VISIBILITY =< 2 KM 10 8 8 2 1 0 0 0 0 0 0 4 33 DURATION OF SUNSHINE HOURS ****** ****** 80.4 172.4 268.2 353.1 359.1 353.9 294.9 247.7 206.2 123.6 ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 880.9 884.2 884.8 881.1 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 887.6 888.5 889.9 889.8 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 17- 6 21- 6 13- 6 17- 6 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 874.0 879.4 877.0 871.4 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 3-12 4-12 5-12 25-21 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1018.7 1022.4 1023.1 1019.0 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1026.3 1027.3 1028.9 1028.8 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 17- 6 21- 6 13- 6 17- 6 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1011.0 1017.1 1014.4 1008.1 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 3-12 4-12 5-12 25-21 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1011.8 1019.4 1022.9 1020.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1023.4 1026.1 1032.7 1032.3 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 28- 3 14- 3 24- 3 17- 6 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1002.1 1011.7 1009.8 1008.7 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 3-12 4-12 5-12 25-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 881.0 884.0 884.8 880.9 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 885.5 886.6 888.6 887.9 ****** DAY ** ** ** ** ** ** ** ** 17 13 24 18 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 875.8 879.7 878.4 872.1 ****** DAY ** ** ** ** ** ** ** ** 8 5 5 26 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1018.8 1022.2 1023.1 1018.7 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1023.9 1025.2 1027.4 1026.6 ****** DAY ** ** ** ** ** ** ** ** 17 13 24 18 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1013.0 1017.4 1015.9 1008.8 ****** DAY ** ** ** ** ** ** ** ** 8 5 5 26 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1011.6 1018.6 1022.4 1019.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1022.2 1022.9 1029.6 1030.5 ****** DAY ** ** ** ** ** ** ** ** 29 13 24 18 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1003.0 1012.0 1012.4 1010.1 ****** DAY ** ** ** ** ** ** ** ** 8 5 6 26 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 881.7 884.6 885.3 881.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 886.5 887.6 889.1 888.3 ****** DAY ** ** ** ** ** ** ** ** 17 13 24 17 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 876.5 880.2 878.4 872.5 ****** DAY ** ** ** ** ** ** ** ** 8 5 5 26 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1019.7 1022.9 1023.7 1019.1 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1025.0 1026.3 1028.0 1027.1 ****** DAY ** ** ** ** ** ** ** ** 17 13 24 17 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1013.8 1018.0 1015.9 1009.3 ****** DAY ** ** ** ** ** ** ** ** 8 5 5 26 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1013.9 1021.1 1024.8 1021.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1023.4 1026.1 1032.7 1032.3 ****** DAY ** ** ** ** ** ** ** ** 28 14 24 18 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1005.5 1013.7 1013.4 1011.7 ****** DAY ** ** ** ** ** ** ** ** 8 5 5 26 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 882.4 885.4 886.2 882.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 887.6 888.5 889.9 889.8 ****** DAY ** ** ** ** ** ** ** ** 17 21 13 17 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 877.0 881.3 878.6 875.0 ****** DAY ** ** ** ** ** ** ** ** 3 5 5 26 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1020.4 1023.8 1024.7 1020.3 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1026.3 1027.3 1028.9 1028.8 ****** DAY ** ** ** ** ** ** ** ** 17 21 13 17 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1014.4 1019.2 1016.2 1012.1 ****** DAY ** ** ** ** ** ** ** ** 3 5 5 26 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1013.6 1020.5 1024.8 1021.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1023.1 1024.3 1031.2 1032.3 ****** DAY ** ** ** ** ** ** ** ** 28 14 27 17 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1005.0 1014.4 1012.0 1013.5 ****** DAY ** ** ** ** ** ** ** ** 8 5 5 2 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 881.1 884.2 884.8 881.1 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 885.9 887.3 889.2 888.1 ****** DAY ** ** ** ** ** ** ** ** 17 21 24 17 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 875.7 880.3 877.9 875.6 ****** DAY ** ** ** ** ** ** ** ** 3 4 5 1 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1019.0 1022.5 1023.1 1018.9 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1024.4 1025.9 1028.1 1026.8 ****** DAY ** ** ** ** ** ** ** ** 17 21 24 17 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1012.9 1018.1 1015.4 1012.8 ****** DAY ** ** ** ** ** ** ** ** 3 4 5 1 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1010.1 ****** 1019.7 1019.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1021.0 ****** 1027.5 1029.9 ****** DAY ** ** ** ** ** ** ** ** 28 ** 13 17 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1003.0 ****** 1010.1 1010.9 ****** DAY ** ** ** ** ** ** ** ** 8 ** 5 1 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 879.7 883.2 883.9 880.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 885.2 886.3 888.0 887.6 ****** DAY ** ** ** ** ** ** ** ** 30 21 13 17 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 874.0 879.4 877.0 874.2 ****** DAY ** ** ** ** ** ** ** ** 3 4 5 1 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1017.4 1021.3 1022.1 1018.1 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1023.6 1024.8 1026.7 1026.3 ****** DAY ** ** ** ** ** ** ** ** 30 21 13 17 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1011.0 1017.1 1014.4 1011.2 ****** DAY ** ** ** ** ** ** ** ** 3 4 5 1 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1010.3 1017.7 1021.2 1018.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1020.4 1022.0 1028.6 1029.4 ****** DAY ** ** ** ** ** ** ** ** 28 13 24 17 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1002.1 1011.7 1009.8 1010.0 ****** DAY ** ** ** ** ** ** ** ** 3 4 5 1 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 879.8 883.6 884.4 881.0 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 885.5 886.8 888.7 888.3 ****** DAY ** ** ** ** ** ** ** ** 30 21 24 17 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 874.0 879.4 877.2 875.0 ****** DAY ** ** ** ** ** ** ** ** 3 4 5 1 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1017.5 1021.8 1022.7 1018.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1023.9 1025.4 1027.5 1027.1 ****** DAY ** ** ** ** ** ** ** ** 30 21 24 17 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1011.0 1017.1 1014.6 1012.1 ****** DAY ** ** ** ** ** ** ** ** 3 4 5 1 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1011.7 1019.9 1023.7 1020.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1022.3 1023.7 1032.1 1031.5 ****** DAY ** ** ** ** ** ** ** ** 28 13 24 17 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1004.0 1014.1 1012.5 1010.6 ****** DAY ** ** ** ** ** ** ** ** 7 4 5 1 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 881.1 884.2 885.0 881.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 886.6 887.3 889.0 888.5 ****** DAY ** ** ** ** ** ** ** ** 30 20 24 17 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 875.4 879.7 878.8 872.6 ****** DAY ** ** ** ** ** ** ** ** 3 4 5 25 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1019.0 1022.5 1023.3 1019.1 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1025.2 1025.9 1027.9 1027.3 ****** DAY ** ** ** ** ** ** ** ** 30 20 24 17 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1012.6 1017.4 1016.4 1009.4 ****** DAY ** ** ** ** ** ** ** ** 3 4 5 25 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1012.3 1019.3 1023.4 1020.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1022.6 1023.5 1030.4 1032.0 ****** DAY ** ** ** ** ** ** ** ** 27 13 23 17 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1003.7 1013.0 1013.0 1009.2 ****** DAY ** ** ** ** ** ** ** ** 7 4 5 12 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 880.4 ****** 883.7 880.9 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 886.3 ****** 888.1 888.1 ****** DAY ** ** ** ** ** ** ** ** 27 ** 12 17 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 875.9 ****** 879.3 871.4 ****** DAY ** ** ** ** ** ** ** ** 3 ** 5 25 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1018.1 ****** 1021.9 1018.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1024.8 ****** 1026.8 1026.8 ****** DAY ** ** ** ** ** ** ** ** 27 ** 12 17 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1013.1 ****** 1016.9 1008.1 ****** DAY ** ** ** ** ** ** ** ** 3 ** 5 25 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1009.9 ****** 1019.9 1019.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1022.0 ****** 1028.1 1031.0 ****** DAY ** ** ** ** ** ** ** ** 27 ** 27 17 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1003.0 ****** 1012.1 1008.7 ****** DAY ** ** ** ** ** ** ** ** 7 ** 4 25 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -0.3 3.2 3.6 12.4 14.8 23.3 26.1 22.7 18.7 12.4 9.5 4.4 12.6 MINIMUN AIR TEMPERATURE (C) -3.8 -1.0 -1.8 6.2 8.5 14.6 15.5 13.2 8.7 3.3 2.0 0.5 5.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 1 0 0 0 0 0 0 1 DAYS WITH MINIMUM TEMP. <=-4 10 8 8 0 0 0 0 0 0 1 4 1 32 DAYS WITH FREEZING MIN.<= 0 24 20 19 1 1 0 0 0 0 4 10 10 89 TEMPERATURE RECORDS LOWEST(C) -17.6 -8.0 -15.8 0.0 -0.6 11.6 11.2 7.4 3.4 -4.0 -4.8 -4.8 -17.6 DAY 29 17 12 4 4 16 17 19 13 19 21 29 MAXIMUM AIR TEMPERATURE (C) 4.6 8.9 9.3 19.2 21.4 31.1 34.5 30.6 28.3 22.8 18.9 10.0 20.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 17 27 18 7 0 0 0 69 DAYS WITH MAXIMUM TEMP. <= 0 6 0 2 0 0 0 0 0 0 0 0 0 8 TEMPERATURE RECORDS HIGHEST(C) 13.2 18.4 17.8 28.2 29.2 38.4 38.0 36.0 34.2 28.0 24.8 16.4 38.4 DAY 21 23 30 14 30 19 6 25 25 12 14 16 DIF. BETWEEN (MAX.-MIN.) (C) 8.4 9.9 11.1 13.0 12.9 16.5 19.0 17.4 19.6 19.5 16.9 9.5 14.5 MEAN DAILY TEMP. (MDT) (C) 0.4 3.9 3.7 12.7 14.9 22.9 25.0 21.9 18.5 13.0 10.4 5.2 12.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.0 62.1 108.2 48.5 4.9 0.0 0.0 0.0 223.7 HEATING DEG. DAYS(BASE 18 0C) 515.8 408.0 442.4 120.7 106.9 0.0 0.0 2.0 19.7 153.8 227.4 396.0 2392.8 DEWPOINT (MEAN C) -4.5 -3.1 -2.3 3.7 6.8 8.8 4.6 4.9 0.4 -1.6 -2.6 0.8 1.3 MIXING RATIO (G/KG) 3.31 3.58 3.89 5.85 7.27 8.38 6.25 6.43 4.71 4.01 3.73 4.72 5.18 VAPOUR PRESSURE (HPA) 4.66 5.02 5.46 8.18 10.16 11.65 8.71 8.99 6.62 5.66 5.27 6.64 7.25 SATURATION DEF. (HPA) 1.79 3.14 2.99 6.94 7.77 18.66 26.93 20.02 16.52 10.23 7.85 2.03 10.41 RELATIVE HUMIDITY (MEAN %) 75 67 69 61 63 46 28 35 33 42 48 80 54 RELATIVE HUMIDITY (MAX. %) 88 87 88 85 85 72 46 54 56 64 72 95 74 RELATIVE HUMIDITY (MIN. %) 55 41 45 37 41 22 14 20 16 21 23 57 33 RELATIVE HUMIDITY (MEAN% 03UTC) 83 76 81 79 79 63 39 50 50 60 65 92 68 RELATIVE HUMIDITY (MEAN% 09UTC) 63 52 53 44 47 27 17 23 20 26 30 63 39 RELATIVE HUMIDITY (MEAN% 15UTC) 77 66 65 47 50 34 18 27 26 37 46 82 48 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 46.8 22.3 93.9 35.9 56.5 31.5 0.0 0.0 0.0 0.0 6.4 57.3 350.6 DAYS WITH PRECIPITATION >=10 1 1 2 1 2 2 0 0 0 0 0 2 11 DAYS WITH PRECIPITATION >= 5 3 1 7 2 4 2 0 0 0 0 1 5 25 DAYS WITH PRECIPITATION >= 1 10 4 9 6 8 4 0 0 0 0 1 8 50 DAYS WITH PRECIPITATION 15 12 19 13 15 9 0 0 0 0 4 14 101 GREATEST DAILY PRECIPITATION 14.4 14.0 25.0 15.6 19.3 14.0 0.0 0.0 0.0 0.0 6.0 17.0 25.0 DAY 22 11 10 19 13 6 ** ** ** ** 26 22 DAY WITH THUNDER STORM 0 1 2 4 6 9 0 0 0 0 0 2 24 DAYS WITH SNOW OR SLEET 11 7 7 0 0 0 0 0 0 0 1 6 32 DAYS WITH DUST 0 1 0 1 0 1 2 4 2 2 1 0 14 WIND DIRECTION (PREVAILING) 270 270 90 90 270 90 90 90 90 360 45 360 90 PREVAILING WIND SPEED(KNOTS) 5.4 6.5 6.2 7.9 6.2 8.5 8.7 8.6 6.2 4.9 5.9 5.3 7.7 PREVAILING WIND PERCENT 6.7 9.5 8.9 12.5 11.3 20.0 19.4 17.7 10.0 6.5 7.9 3.2 9.5 CALMS PERCENT OF WIND 72.9 61.2 66.5 55.0 63.3 55.0 60.2 56.9 70.0 81.9 76.7 84.3 67.1 NO. OF WIND OBSERVATION 240 232 248 240 248 240 216 248 240 248 240 248 2888 VECTOR WIND DIRECTION (MEAN) 324 339 63 97 232 102 100 128 114 351 9 349 98 VECTOR WIND MAGNITUDE(KNOTS) 0.2 0.3 0.5 0.2 0.3 1.2 1.8 1.5 0.3 0.2 0.2 0.1 0.4 WIND STEADINESES (MEAN %) 13.3 13.6 27.8 6.5 13.6 35.3 60.0 48.4 17.6 22.2 14.3 11.1 19.0 WIND SPEED (MEAN KNOTS) 1.5 2.2 1.8 3.1 2.2 3.4 3.0 3.1 1.7 0.9 1.4 0.9 2.1 FASTEST WIND DIRECTION 180 70 240 190 50 140 80 110 340 100 260 210 190 FASTEST WIND SPEED (KNOTS) 14 17 19 27 16 23 19 16 16 16 23 14 27 DAY 3 21 6 15 11 5 12 5 3 15 26 28 DAYS WITH SKY CLEAR (0-2)/8 6 10 5 3 6 14 27 28 28 26 20 6 179 DAYS WITH P.CLOUDY (3-6)/8 17 12 13 20 16 15 0 3 2 5 8 15 126 DAYS WITH CLOUDY (7-8)/8 8 7 13 7 9 1 0 0 0 0 2 10 57 DAYS WITH VISIBILITY =< 2 KM 6 3 3 1 3 1 0 0 0 0 1 6 24 DURATION OF SUNSHINE HOURS 114.3 137.9 141.5 148.1 243.6 311.5 333.1 339.4 313.6 282.0 215.7 110.6 2691.3 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 881.4 878.2 880.0 878.2 880.1 876.4 876.1 879.0 881.4 883.1 884.1 882.4 880.0 MAX. QFE PRESSURE IN HPA 893.1 886.5 889.6 882.7 886.8 882.3 880.6 886.4 887.3 888.8 893.7 888.8 893.7 DAY-HOUR 10- 6 16-18 12- 9 8- 6 2-18 7- 3 6- 6 31- 6 30- 6 30- 6 4- 6 29- 6 MIN. QFE PRESSURE IN HPA 870.5 868.9 868.9 870.9 874.1 869.6 871.9 872.0 875.2 878.3 871.5 875.6 868.9 DAY-HOUR 3- 0 11-12 31- 0 18-15 19-12 27-12 24-12 1-12 18-12 5-12 26- 9 28- 9 MEAN QNH PRESSURE IN HPA 1019.3 1015.7 1017.7 1015.7 1017.8 1013.7 1013.4 1016.6 1019.3 1021.2 1022.3 1020.4 1017.8 MAX. QNH PRESSURE IN HPA 1032.5 1025.0 1028.5 1020.8 1025.4 1020.3 1018.4 1024.9 1025.9 1027.6 1033.1 1027.6 1033.1 DAY-HOUR 10- 6 16-18 12- 9 8- 6 2-18 7- 3 6- 6 31- 6 30- 6 30- 6 4- 6 29- 6 MIN. QNH PRESSURE IN HPA 1007.0 1005.2 1005.2 1007.5 1011.1 1006.0 1008.6 1008.7 1012.3 1015.8 1008.2 1012.8 1005.2 DAY-HOUR 3- 0 11-12 31- 0 18-15 19-12 27-12 24-12 1-12 18-12 5-12 26- 9 28- 9 MEAN QFF PRESSURE IN HPA 1023.6 1017.7 1019.6 1012.8 1013.6 1005.2 1003.8 1008.7 1013.4 1018.5 1021.2 1021.7 1015.0 MAX. QFF PRESSURE IN HPA 1039.5 1031.3 1038.2 1021.2 1026.5 1014.2 1010.4 1019.8 1023.0 1027.2 1033.4 1032.6 1039.5 DAY-HOUR 10- 6 16-18 12-15 4- 3 2-18 7- 3 14- 6 31- 6 30- 6 18- 3 4- 3 29- 6 MIN. QFF PRESSURE IN HPA 1005.8 1002.0 1001.0 1000.8 1004.3 996.0 998.9 999.0 1004.8 1010.8 1004.7 1011.7 996.0 DAY-HOUR 3- 0 25-12 31- 0 15-12 19-12 27-21 26-15 1-12 18-12 13-21 26- 9 28- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 880.8 877.7 879.6 877.7 879.8 876.4 876.2 879.0 881.5 883.0 884.0 882.1 879.8 MAX. QFE PRESSURE IN HPA 891.6 885.2 887.7 880.9 885.4 881.9 879.9 883.9 885.4 887.9 892.6 887.1 892.6 DAY 10 17 13 4 3 7 15 31 30 30 4 3 MIN. QFE PRESSURE IN HPA 870.5 871.8 868.9 872.1 874.5 870.2 873.4 874.3 875.7 879.3 874.7 876.0 868.9 DAY 3 25 31 1 10 27 19 2 18 14 26 20 MEAN QNH PRESSURE IN HPA 1018.7 1015.2 1017.3 1015.2 1017.5 1013.7 1013.5 1016.6 1019.4 1021.1 1022.2 1020.1 1017.5 MAX. QNH PRESSURE IN HPA 1030.8 1023.6 1026.4 1018.7 1023.8 1019.9 1017.6 1022.1 1023.8 1026.6 1031.9 1025.7 1031.9 DAY 10 17 13 4 3 7 15 31 30 30 4 3 MIN. QNH PRESSURE IN HPA 1007.0 1008.5 1005.2 1008.8 1011.5 1006.7 1010.3 1011.3 1012.9 1016.9 1011.8 1013.2 1005.2 DAY 3 25 31 1 10 27 19 2 18 14 26 20 MEAN QFF PRESSURE IN HPA 1022.3 1016.7 1019.0 1012.2 1013.1 1005.4 1004.1 1008.7 1013.1 1017.8 1020.3 1020.9 1014.5 MAX. QFF PRESSURE IN HPA 1037.6 1028.6 1034.8 1019.2 1024.7 1012.9 1009.4 1016.4 1019.6 1025.0 1031.0 1029.3 1037.6 DAY 10 17 12 4 3 7 15 31 30 18 5 29 MIN. QFF PRESSURE IN HPA 1005.8 1004.7 1001.0 1004.5 1005.1 996.8 1001.2 1002.1 1005.6 1011.9 1007.8 1011.7 996.8 DAY 3 25 31 19 19 27 24 2 18 14 26 28 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 881.1 878.3 880.0 878.3 880.5 877.2 877.1 880.0 882.3 883.6 884.5 882.5 880.4 MAX. QFE PRESSURE IN HPA 892.2 884.3 888.3 881.9 885.9 882.3 880.4 886.0 886.4 888.2 892.9 887.5 892.9 DAY 10 17 13 4 3 7 14 31 30 30 4 3 MIN. QFE PRESSURE IN HPA 870.7 870.8 868.9 873.6 875.3 871.2 873.7 874.8 876.7 880.3 874.3 876.2 868.9 DAY 3 11 31 19 19 27 19 1 18 14 26 28 MEAN QNH PRESSURE IN HPA 1018.9 1015.8 1017.8 1015.9 1018.3 1014.5 1014.4 1017.7 1020.3 1021.8 1022.8 1020.6 1018.2 MAX. QNH PRESSURE IN HPA 1031.5 1022.6 1027.1 1019.9 1024.4 1020.3 1018.2 1024.5 1024.9 1027.0 1032.2 1026.2 1032.2 DAY 10 17 13 4 3 7 14 31 30 30 4 3 MIN. QNH PRESSURE IN HPA 1007.3 1007.4 1005.2 1010.5 1012.4 1007.8 1010.6 1011.9 1014.0 1018.1 1011.3 1013.5 1005.2 DAY 3 11 31 19 19 27 19 1 18 14 26 28 MEAN QFF PRESSURE IN HPA 1023.7 1018.3 1020.4 1013.5 1014.1 1006.3 1005.0 1010.4 1015.5 1020.8 1023.3 1022.6 1016.2 MAX. QFF PRESSURE IN HPA 1039.2 1029.1 1037.7 1021.2 1025.5 1014.2 1010.1 1019.8 1022.7 1027.2 1033.4 1031.3 1039.2 DAY 10 17 12 4 3 7 15 31 30 18 4 29 MIN. QFF PRESSURE IN HPA 1006.5 1005.4 1001.7 1005.9 1005.1 997.9 1001.4 1003.9 1008.2 1015.3 1009.6 1013.5 997.9 DAY 3 25 31 15 19 27 26 2 18 14 26 28 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 882.3 879.2 880.9 879.1 881.0 877.3 877.3 880.4 882.8 884.5 885.3 883.5 881.1 MAX. QFE PRESSURE IN HPA 893.1 886.1 889.2 882.7 886.0 881.9 880.6 886.4 887.3 888.8 893.7 888.8 893.7 DAY 10 16 12 8 3 11 6 31 30 30 4 29 MIN. QFE PRESSURE IN HPA 872.2 871.8 869.9 873.8 875.6 871.0 874.1 875.0 877.4 881.4 874.0 877.4 869.9 DAY 1 11 31 15 19 27 19 1 18 14 26 28 MEAN QNH PRESSURE IN HPA 1020.4 1016.8 1018.8 1016.7 1018.9 1014.7 1014.7 1018.2 1020.8 1022.8 1023.7 1021.7 1019.0 MAX. QNH PRESSURE IN HPA 1032.5 1024.6 1028.1 1020.8 1024.5 1019.9 1018.4 1024.9 1025.9 1027.6 1033.1 1027.6 1033.1 DAY 10 16 12 8 3 11 6 31 30 30 4 29 MIN. QNH PRESSURE IN HPA 1009.0 1008.5 1006.4 1010.8 1012.8 1007.6 1011.1 1012.1 1014.8 1019.3 1011.0 1014.8 1006.4 DAY 1 11 31 15 19 27 19 1 18 14 26 28 MEAN QFF PRESSURE IN HPA 1024.7 1019.1 1020.7 1013.9 1014.7 1006.3 1005.1 1010.4 1014.9 1020.0 1022.5 1023.2 1016.3 MAX. QFF PRESSURE IN HPA 1039.5 1029.5 1037.1 1020.3 1025.5 1012.9 1010.4 1019.8 1023.0 1026.6 1032.6 1032.6 1039.5 DAY 10 16 12 8 3 7 14 31 30 17 4 29 MIN. QFF PRESSURE IN HPA 1008.6 1006.6 1003.0 1002.9 1005.7 997.3 1001.7 1004.2 1007.8 1014.1 1007.9 1015.0 997.3 DAY 3 25 31 15 19 27 24 2 18 14 26 28 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 881.3 878.4 880.2 878.3 880.2 876.5 876.2 879.1 881.3 883.0 883.7 882.1 880.0 MAX. QFE PRESSURE IN HPA 892.0 886.2 889.6 881.7 885.9 881.1 879.7 885.0 885.8 886.8 892.0 886.9 892.0 DAY 10 16 12 8 2 11 14 31 30 17 4 1 MIN. QFE PRESSURE IN HPA 873.4 870.6 869.2 872.6 875.1 870.5 873.0 873.6 876.2 880.0 871.5 875.6 869.2 DAY 17 11 31 15 19 27 19 1 18 14 26 28 MEAN QNH PRESSURE IN HPA 1019.2 1015.9 1018.0 1015.8 1018.0 1013.7 1013.5 1016.7 1019.2 1021.1 1021.9 1020.1 1017.8 MAX. QNH PRESSURE IN HPA 1031.2 1024.7 1028.5 1019.6 1024.4 1019.0 1017.4 1023.4 1024.3 1025.4 1031.2 1025.5 1031.2 DAY 10 16 12 8 2 11 14 31 30 17 4 1 MIN. QNH PRESSURE IN HPA 1010.3 1007.2 1005.6 1009.4 1012.2 1007.0 1009.9 1010.5 1013.5 1017.7 1008.2 1012.8 1005.6 DAY 17 11 31 15 19 27 19 1 18 14 26 28 MEAN QFF PRESSURE IN HPA 1023.1 1017.6 1019.5 1012.8 1013.5 1005.0 1003.6 1008.6 1012.8 1017.5 1019.8 1020.9 1014.5 MAX. QFF PRESSURE IN HPA 1037.5 1029.0 1037.2 1019.4 1025.2 1011.2 1009.3 1017.7 1020.8 1025.4 1030.0 1029.0 1037.5 DAY 10 16 12 20 2 7 14 31 30 17 4 29 MIN. QFF PRESSURE IN HPA 1010.4 1004.2 1003.0 1002.3 1005.5 996.3 999.9 1002.6 1005.7 1011.6 1004.7 1012.6 996.3 DAY 17 25 31 15 19 19 27 2 18 14 26 28 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 880.8 877.4 879.2 877.1 879.2 875.4 875.0 877.7 880.0 881.9 883.0 881.6 879.0 MAX. QFE PRESSURE IN HPA 891.3 885.3 889.1 880.6 885.6 879.8 878.2 883.9 884.4 886.2 891.4 885.8 891.4 DAY 10 16 12 20 2 10 14 31 30 29 4 1 MIN. QFE PRESSURE IN HPA 873.2 868.9 870.1 871.2 874.1 869.6 871.9 872.0 875.2 878.3 873.0 876.3 868.9 DAY 23 11 31 15 19 27 24 1 18 5 26 19 MEAN QNH PRESSURE IN HPA 1018.6 1014.8 1016.9 1014.5 1016.8 1012.5 1012.1 1015.1 1017.7 1019.9 1021.1 1019.6 1016.6 MAX. QNH PRESSURE IN HPA 1030.4 1023.7 1028.0 1018.4 1024.0 1017.5 1015.7 1022.1 1022.7 1024.7 1030.6 1024.3 1030.6 DAY 10 16 12 20 2 10 14 31 30 29 4 1 MIN. QNH PRESSURE IN HPA 1010.1 1005.2 1006.6 1007.8 1011.1 1006.0 1008.6 1008.7 1012.3 1015.8 1009.9 1013.6 1005.2 DAY 23 11 31 15 19 27 24 1 18 5 26 19 MEAN QFF PRESSURE IN HPA 1022.6 1016.3 1018.4 1011.5 1012.6 1004.3 1002.8 1007.1 1011.4 1016.5 1019.3 1020.5 1013.6 MAX. QFF PRESSURE IN HPA 1036.7 1027.7 1036.7 1017.8 1024.3 1011.4 1007.4 1017.3 1019.4 1023.7 1030.0 1028.2 1036.7 DAY 10 16 12 3 2 8 15 31 30 17 4 29 MIN. QFF PRESSURE IN HPA 1011.1 1002.0 1003.7 1000.8 1004.3 996.3 999.0 999.0 1004.8 1011.5 1008.5 1013.4 996.3 DAY 3 25 31 15 19 19 24 1 18 13 26 19 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 881.7 878.1 879.7 877.5 879.3 875.4 875.0 877.7 880.3 882.5 883.9 882.3 879.4 MAX. QFE PRESSURE IN HPA 891.5 886.0 889.3 881.1 885.9 879.9 878.2 883.6 884.8 887.4 891.7 886.7 891.7 DAY 10 16 12 3 2 10 14 31 30 29 4 1 MIN. QFE PRESSURE IN HPA 874.5 870.6 870.1 870.9 874.4 869.6 871.9 872.2 875.6 878.3 878.0 877.5 869.6 DAY 23 11 30 18 19 27 26 1 17 5 26 19 MEAN QNH PRESSURE IN HPA 1019.6 1015.6 1017.4 1014.9 1017.0 1012.6 1012.1 1015.2 1018.1 1020.5 1022.1 1020.3 1017.1 MAX. QNH PRESSURE IN HPA 1030.7 1024.5 1028.2 1019.0 1024.4 1017.6 1015.7 1021.8 1023.1 1026.1 1030.9 1025.3 1030.9 DAY 10 16 12 3 2 10 14 31 30 29 4 1 MIN. QNH PRESSURE IN HPA 1011.5 1007.2 1006.6 1007.5 1011.4 1006.0 1008.6 1009.0 1012.8 1015.8 1015.5 1014.9 1006.0 DAY 23 11 30 18 19 27 26 1 17 5 26 19 MEAN QFF PRESSURE IN HPA 1024.5 1018.1 1019.8 1012.3 1012.9 1004.4 1002.7 1007.7 1013.3 1019.4 1022.5 1022.3 1015.0 MAX. QFF PRESSURE IN HPA 1038.5 1029.6 1038.2 1018.7 1024.9 1011.1 1007.7 1017.5 1021.3 1026.8 1032.8 1029.6 1038.5 DAY 10 16 12 3 2 6 14 31 30 17 4 29 MIN. QFF PRESSURE IN HPA 1013.8 1004.6 1003.8 1004.5 1004.3 996.4 998.9 1000.2 1006.3 1014.2 1015.2 1016.1 996.4 DAY 3 25 31 18 19 27 26 1 18 5 25 19 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 881.9 878.7 880.3 878.9 880.5 876.6 876.2 879.1 881.5 883.3 884.4 882.7 880.3 MAX. QFE PRESSURE IN HPA 891.2 886.5 889.5 882.2 886.8 880.9 879.4 885.2 885.6 888.3 892.0 887.2 892.0 DAY 9 16 12 30 2 6 14 31 30 29 4 2 MIN. QFE PRESSURE IN HPA 875.4 872.4 871.4 872.7 876.1 870.3 873.2 874.0 876.2 879.1 877.4 877.9 870.3 DAY 23 11 30 18 20 27 18 1 17 5 25 19 MEAN QNH PRESSURE IN HPA 1019.9 1016.2 1018.0 1016.5 1018.3 1013.9 1013.4 1016.7 1019.4 1021.4 1022.7 1020.7 1018.1 MAX. QNH PRESSURE IN HPA 1030.3 1025.0 1028.4 1020.2 1025.4 1018.7 1017.1 1023.6 1024.0 1027.1 1031.2 1025.8 1031.2 DAY 9 16 12 30 2 6 14 31 30 29 4 2 MIN. QNH PRESSURE IN HPA 1012.6 1009.2 1008.1 1009.5 1013.3 1006.8 1010.1 1011.0 1013.5 1016.7 1014.8 1015.4 1006.8 DAY 23 11 30 18 20 27 18 1 17 5 25 19 MEAN QFF PRESSURE IN HPA 1024.3 1018.5 1019.9 1013.6 1014.2 1005.4 1003.7 1008.8 1013.5 1018.6 1021.5 1022.3 1015.4 MAX. QFF PRESSURE IN HPA 1037.0 1031.3 1035.3 1020.5 1026.5 1012.7 1009.3 1019.4 1021.6 1026.9 1031.5 1030.3 1037.0 DAY 9 16 12 3 2 6 14 31 30 17 4 31 MIN. QFF PRESSURE IN HPA 1014.0 1006.6 1004.4 1004.8 1006.1 996.0 1000.1 1001.7 1007.1 1012.1 1011.9 1015.5 996.0 DAY 2 25 30 18 19 27 26 1 17 5 25 19 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 881.6 878.3 880.0 878.7 880.2 876.4 876.3 879.3 881.5 883.1 884.1 882.2 880.1 MAX. QFE PRESSURE IN HPA 891.3 886.1 889.1 882.2 886.0 881.9 879.7 885.2 885.2 888.3 892.2 887.1 892.2 DAY 9 16 12 30 2 6 14 31 2 29 3 2 MIN. QFE PRESSURE IN HPA 873.4 873.0 870.4 872.0 875.8 870.7 873.5 874.3 875.7 879.2 875.2 876.6 870.4 DAY 2 25 30 18 19 27 18 1 17 5 25 27 MEAN QNH PRESSURE IN HPA 1019.6 1015.8 1017.7 1016.3 1017.9 1013.7 1013.5 1016.9 1019.4 1021.3 1022.3 1020.2 1017.9 MAX. QNH PRESSURE IN HPA 1030.4 1024.6 1028.0 1020.2 1024.5 1019.9 1017.4 1023.6 1023.6 1027.1 1031.5 1025.7 1031.5 DAY 9 16 12 30 2 6 14 31 2 29 3 2 MIN. QNH PRESSURE IN HPA 1010.3 1009.9 1006.9 1008.7 1013.0 1007.3 1010.4 1011.3 1012.9 1016.8 1012.3 1013.9 1006.9 DAY 2 25 30 18 19 27 18 1 17 5 25 27 MEAN QFF PRESSURE IN HPA 1023.3 1017.5 1019.1 1013.1 1013.5 1004.8 1003.6 1008.6 1013.0 1017.7 1020.3 1021.1 1014.6 MAX. QFF PRESSURE IN HPA 1037.1 1030.3 1035.3 1020.4 1025.4 1012.7 1009.3 1018.9 1020.3 1026.1 1031.4 1029.8 1037.1 DAY 9 16 12 3 2 6 14 31 30 17 4 31 MIN. QFF PRESSURE IN HPA 1009.8 1006.4 1003.3 1005.0 1006.1 996.0 1000.0 1001.2 1005.6 1010.8 1008.7 1012.4 996.0 DAY 2 24 30 18 19 27 26 1 17 13 25 27 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -0.9 3.7 6.1 14.1 18.1 23.6 26.1 23.9 21.1 11.9 7.2 3.3 13.2 MINIMUN AIR TEMPERATURE (C) -5.2 -0.6 0.5 7.6 11.4 14.3 16.4 14.0 11.3 3.0 1.2 -1.8 6.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH MINIMUM TEMP. <=-4 19 3 5 0 0 0 0 0 0 0 5 4 36 DAYS WITH FREEZING MIN.<= 0 29 19 15 0 0 0 0 0 0 6 13 25 107 TEMPERATURE RECORDS LOWEST(C) -12.6 -6.4 -12.8 1.0 3.0 11.2 12.2 9.2 6.0 -3.5 -7.2 -5.6 -12.8 DAY 21 17 3 2 11 24 30 4 28 9 23 1 MAXIMUM AIR TEMPERATURE (C) 4.1 9.2 12.2 21.4 25.1 31.5 33.5 32.0 30.7 20.8 14.4 10.4 20.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 4 19 31 28 20 2 0 0 104 DAYS WITH MAXIMUM TEMP. <= 0 5 0 0 0 0 0 0 0 0 0 0 0 5 TEMPERATURE RECORDS HIGHEST(C) 13.8 15.4 20.6 29.2 32.2 37.6 36.6 36.4 35.6 32.0 24.4 16.0 37.6 DAY 29 12 30 20 27 19 3 28 4 1 1 23 DIF. BETWEEN (MAX.-MIN.) (C) 9.3 9.8 11.7 13.8 13.7 17.2 17.1 18.0 19.4 17.8 13.2 12.2 14.4 MEAN DAILY TEMP. (MDT) (C) -0.6 4.3 6.4 14.5 18.3 22.9 25.0 23.0 21.0 11.9 7.8 4.3 13.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.7 8.5 64.3 122.8 64.9 29.9 0.1 0.0 0.0 291.2 HEATING DEG. DAYS(BASE 18 0C) 575.1 384.3 360.8 113.7 38.5 0.0 0.0 0.0 3.1 195.6 306.7 424.9 2402.8 DEWPOINT (MEAN C) -5.2 -0.4 -0.9 4.7 9.2 7.3 5.6 5.9 7.0 -1.1 -1.6 -1.6 2.4 MIXING RATIO (G/KG) 3.02 4.37 4.30 6.31 8.59 7.64 6.68 6.79 7.26 4.27 4.04 3.88 5.60 VAPOUR PRESSURE (HPA) 4.27 6.15 6.04 8.81 11.96 10.64 9.31 9.49 10.15 6.03 5.70 5.48 7.84 SATURATION DEF. (HPA) 1.76 2.19 4.04 8.27 10.01 20.41 25.92 21.55 16.79 9.20 5.46 2.63 10.69 RELATIVE HUMIDITY (MEAN %) 75 78 66 60 61 42 30 34 43 44 58 73 55 RELATIVE HUMIDITY (MAX. %) 90 95 90 83 87 71 49 52 64 67 80 92 77 RELATIVE HUMIDITY (MIN. %) 53 55 41 34 34 20 16 20 25 25 37 48 34 RELATIVE HUMIDITY (MEAN% 03UTC) 86 89 86 77 79 57 42 50 62 62 77 90 71 RELATIVE HUMIDITY (MEAN% 09UTC) 58 63 48 38 40 24 18 24 29 30 42 53 39 RELATIVE HUMIDITY (MEAN% 15UTC) 76 75 58 53 54 28 21 23 34 39 54 74 49 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 21.5 77.5 61.7 67.7 71.9 2.7 1.0 0.5 0.0 1.0 10.7 6.4 322.6 DAYS WITH PRECIPITATION >=10 0 2 2 3 3 0 0 0 0 0 0 0 10 DAYS WITH PRECIPITATION >= 5 2 6 4 5 3 0 0 0 0 0 1 1 22 DAYS WITH PRECIPITATION >= 1 4 10 11 8 8 2 0 0 0 1 2 1 47 DAYS WITH PRECIPITATION 9 15 12 14 12 4 1 1 0 1 9 6 84 GREATEST DAILY PRECIPITATION 8.0 20.9 17.7 21.5 26.0 1.0 1.0 0.5 0.0 1.0 9.0 5.0 26.0 DAY 9 5 2 13 29 1 28 17 ** 30 29 6 DAY WITH THUNDER STORM 0 1 2 4 5 4 0 0 0 0 0 0 16 DAYS WITH SNOW OR SLEET 8 5 2 0 0 0 0 0 0 0 1 3 19 DAYS WITH DUST 0 0 0 0 1 0 0 0 2 3 1 0 7 WIND DIRECTION (PREVAILING) 315 270 225 90 90 90 90 90 90 90 45 315 90 PREVAILING WIND SPEED(KNOTS) 4.3 6.3 7.3 7.0 6.3 9.0 9.1 7.1 8.1 6.9 7.6 4.5 7.6 PREVAILING WIND PERCENT 3.2 5.4 8.9 13.8 9.3 13.3 10.5 12.9 11.7 6.5 4.6 3.5 7.6 CALMS PERCENT OF WIND 87.9 77.9 69.4 65.8 75.8 63.8 61.3 71.4 74.6 84.3 78.6 90.4 74.9 NO. OF WIND OBSERVATION 248 222 248 240 248 240 248 248 240 230 196 230 2838 VECTOR WIND DIRECTION (MEAN) 336 348 213 85 109 55 21 99 101 114 256 304 80 VECTOR WIND MAGNITUDE(KNOTS) 0.1 0.1 0.6 0.8 0.3 0.8 0.7 0.7 0.7 0.3 R< 0.1 0.2 0.3 WIND STEADINESES (MEAN %) 20.0 7.7 28.6 36.4 20.0 29.6 23.3 36.8 38.9 30.0 1.6 40.0 17.6 WIND SPEED (MEAN KNOTS) 0.5 1.3 2.1 2.2 1.5 2.7 3.0 1.9 1.8 1.0 1.5 0.5 1.7 FASTEST WIND DIRECTION 100 70 250 60 240 70 320 330 100 220 150 240 240 FASTEST WIND SPEED (KNOTS) 10 14 17 23 31 19 19 17 16 17 25 12 31 DAY 6 4 22 22 29 19 15 28 4 1 14 12 DAYS WITH SKY CLEAR (0-2)/8 13 5 12 4 5 25 28 29 29 24 11 12 197 DAYS WITH P.CLOUDY (3-6)/8 10 12 7 17 19 5 3 2 1 6 12 14 108 DAYS WITH CLOUDY (7-8)/8 8 11 12 9 7 0 0 0 0 1 7 5 60 DAYS WITH VISIBILITY =< 2 KM 7 5 2 3 0 0 0 0 0 0 1 2 20 DURATION OF SUNSHINE HOURS 151.0 141.1 193.5 200.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 882.9 881.6 880.5 879.1 879.2 877.1 876.9 878.9 880.2 886.4 884.1 885.3 881.0 MAX. QFE PRESSURE IN HPA 892.9 889.8 889.1 887.8 887.1 885.7 882.6 883.1 888.8 893.0 891.6 891.2 893.0 DAY-HOUR 6- 6 9- 6 17- 6 1- 6 9- 6 23- 3 28- 3 31- 6 23- 6 17- 6 22- 6 27- 6 MIN. QFE PRESSURE IN HPA 871.2 874.5 869.4 871.8 873.5 871.7 872.3 873.3 875.2 877.8 869.9 877.6 869.4 DAY-HOUR 8-12 15-12 22- 0 21- 0 7- 9 19-12 13-12 12-15 14-12 1-12 14- 9 5-12 MEAN QNH PRESSURE IN HPA 1021.0 1019.5 1018.3 1016.7 1016.8 1014.5 1014.2 1016.5 1018.0 1024.9 1022.3 1023.6 1018.9 MAX. QNH PRESSURE IN HPA 1032.2 1028.8 1028.0 1026.5 1025.7 1024.1 1020.7 1021.2 1027.6 1032.4 1030.8 1030.3 1032.4 DAY-HOUR 6- 6 9- 6 17- 6 1- 6 9- 6 23- 3 28- 3 31- 6 23- 6 17- 6 22- 6 27- 6 MIN. QNH PRESSURE IN HPA 1007.8 1011.5 1005.8 1008.5 1010.4 1008.4 1009.1 1010.2 1012.3 1015.3 1006.4 1015.0 1005.8 DAY-HOUR 8-12 15-12 22- 0 21- 0 7- 9 19-12 13-12 12-15 14-12 1-12 14- 9 5-12 MEAN QFF PRESSURE IN HPA 1025.5 1021.3 1018.6 1012.9 1010.9 1006.0 1004.6 1008.0 1010.7 1022.8 1023.8 1026.1 1015.9 MAX. QFF PRESSURE IN HPA 1037.2 1030.8 1031.7 1024.9 1025.6 1017.9 1011.4 1014.4 1023.2 1032.1 1033.6 1033.7 1037.2 DAY-HOUR 19-18 9- 6 17- 6 1- 3 9-18 23- 6 29- 3 25- 3 23- 3 8- 3 30-15 6-18 MIN. QFF PRESSURE IN HPA 1012.1 1009.1 1005.2 1000.0 1002.5 997.1 998.9 1001.8 1002.9 1007.8 1006.5 1017.1 997.1 DAY-HOUR 9-12 3-12 22- 0 21- 0 23-15 19-12 13-12 12-12 14-12 1-12 14- 3 4-15 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 882.6 881.2 879.8 878.9 879.0 877.1 876.9 878.9 880.3 886.2 885.1 885.5 881.0 MAX. QFE PRESSURE IN HPA 890.6 888.2 886.9 886.9 885.9 885.0 881.2 882.6 886.5 891.6 890.1 889.9 891.6 DAY 6 9 17 1 10 23 28 31 23 17 22 27 MIN. QFE PRESSURE IN HPA 872.7 875.2 869.4 871.8 876.3 872.5 874.0 874.1 875.8 879.0 879.8 882.6 869.4 DAY 9 5 22 21 21 19 13 13 14 2 7 16 MEAN QNH PRESSURE IN HPA 1020.7 1019.1 1017.5 1016.5 1016.6 1014.5 1014.3 1016.5 1018.0 1024.7 1023.5 1023.9 1018.8 MAX. QNH PRESSURE IN HPA 1029.7 1027.0 1025.5 1025.5 1024.4 1023.4 1019.1 1020.7 1025.0 1030.8 1029.1 1028.9 1030.8 DAY 6 9 17 1 10 23 28 31 23 17 22 27 MIN. QNH PRESSURE IN HPA 1009.5 1012.3 1005.8 1008.5 1013.6 1009.3 1011.0 1011.1 1013.0 1016.6 1017.5 1020.7 1005.8 DAY 9 5 22 21 21 19 13 13 14 2 7 16 MEAN QFF PRESSURE IN HPA 1024.9 1020.5 1017.5 1012.6 1010.6 1006.1 1005.0 1008.0 1010.5 1022.1 1023.7 1025.4 1015.6 MAX. QFF PRESSURE IN HPA 1034.3 1028.9 1028.4 1023.0 1023.3 1017.3 1010.3 1011.6 1018.7 1029.0 1030.9 1032.9 1034.3 DAY 20 9 17 1 10 23 29 25 23 8 22 7 MIN. QFF PRESSURE IN HPA 1013.2 1011.0 1005.2 1000.0 1005.2 997.9 1000.9 1002.3 1004.2 1009.0 1015.3 1020.6 997.9 DAY 9 5 22 21 21 19 13 13 14 2 2 16 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 882.9 881.7 880.5 879.6 879.6 877.9 877.9 880.0 881.1 887.0 884.0 885.1 881.4 MAX. QFE PRESSURE IN HPA 891.2 888.9 887.6 887.2 886.2 885.7 882.6 883.0 888.4 892.1 890.9 890.2 892.1 DAY 6 9 17 1 10 23 28 31 23 17 21 27 MIN. QFE PRESSURE IN HPA 872.5 874.7 869.4 873.6 876.4 873.1 874.5 875.6 876.7 880.1 873.2 877.9 869.4 DAY 9 5 22 12 14 19 14 12 14 2 14 5 MEAN QNH PRESSURE IN HPA 1021.0 1019.6 1018.3 1017.3 1017.3 1015.4 1015.4 1017.7 1018.9 1025.6 1022.2 1023.5 1019.3 MAX. QNH PRESSURE IN HPA 1030.3 1027.7 1026.3 1025.8 1024.7 1024.1 1020.7 1021.1 1027.2 1031.3 1030.0 1029.2 1031.3 DAY 6 9 17 1 10 23 28 31 23 17 21 27 MIN. QNH PRESSURE IN HPA 1009.3 1011.8 1005.8 1010.5 1013.7 1010.0 1011.5 1012.8 1014.0 1017.8 1010.1 1015.4 1005.8 DAY 9 5 22 12 14 19 14 12 14 2 14 5 MEAN QFF PRESSURE IN HPA 1026.2 1021.9 1019.5 1014.0 1011.7 1007.0 1005.9 1009.6 1012.7 1024.8 1023.2 1026.8 1016.9 MAX. QFF PRESSURE IN HPA 1034.4 1030.7 1030.8 1024.9 1024.8 1017.9 1011.4 1014.4 1023.2 1032.1 1032.4 1033.6 1034.4 DAY 20 9 17 1 10 23 29 25 23 8 21 7 MIN. QFF PRESSURE IN HPA 1013.5 1010.7 1006.0 1002.7 1006.2 998.9 1001.3 1004.4 1006.6 1010.2 1006.5 1017.2 998.9 DAY 9 5 22 21 28 19 14 12 14 2 14 5 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 884.0 882.8 881.6 880.2 880.1 878.1 878.1 880.4 881.7 887.9 884.7 886.2 882.2 MAX. QFE PRESSURE IN HPA 892.9 889.8 889.1 887.8 887.1 885.7 882.2 883.1 888.8 893.0 891.6 891.2 893.0 DAY 6 9 17 1 9 23 28 31 23 17 22 27 MIN. QFE PRESSURE IN HPA 873.6 876.1 870.9 873.4 876.9 873.5 875.3 875.9 877.4 880.8 873.0 878.9 870.9 DAY 9 15 22 13 7 19 13 12 14 2 14 5 MEAN QNH PRESSURE IN HPA 1022.2 1020.9 1019.5 1018.0 1017.8 1015.6 1015.6 1018.2 1019.7 1026.6 1023.1 1024.7 1020.2 MAX. QNH PRESSURE IN HPA 1032.2 1028.8 1028.0 1026.5 1025.7 1024.1 1020.2 1021.2 1027.6 1032.4 1030.8 1030.3 1032.4 DAY 6 9 17 1 9 23 28 31 23 17 22 27 MIN. QNH PRESSURE IN HPA 1010.5 1013.3 1007.5 1010.3 1014.2 1010.4 1012.4 1013.1 1014.8 1018.6 1009.9 1016.5 1007.5 DAY 9 15 22 13 7 19 13 12 14 2 14 5 MEAN QFF PRESSURE IN HPA 1027.0 1023.0 1020.2 1014.3 1012.0 1007.1 1005.8 1009.6 1012.4 1024.3 1026.3 1027.8 1017.5 MAX. QFF PRESSURE IN HPA 1036.5 1030.8 1031.7 1024.6 1025.6 1017.9 1011.0 1013.6 1022.7 1031.3 1033.3 1033.5 1036.5 DAY 6 9 17 1 10 23 29 25 23 8 22 7 MIN. QFF PRESSURE IN HPA 1014.2 1013.5 1007.2 1004.9 1005.9 998.7 1002.3 1004.4 1006.0 1011.9 1016.2 1022.4 998.7 DAY 9 3 22 12 23 19 13 12 14 2 2 28 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 882.6 881.7 880.8 879.2 879.3 877.1 876.8 879.1 880.3 886.4 883.4 884.8 881.0 MAX. QFE PRESSURE IN HPA 891.8 888.4 888.0 886.0 886.6 884.4 880.7 881.5 887.1 891.3 889.9 889.2 891.8 DAY 6 9 17 1 9 23 27 25 23 17 30 26 MIN. QFE PRESSURE IN HPA 872.4 874.6 870.3 872.1 873.5 873.2 873.9 874.6 876.5 879.1 869.9 877.9 869.9 DAY 9 15 22 13 7 19 13 12 14 2 14 5 MEAN QNH PRESSURE IN HPA 1020.7 1019.7 1018.6 1016.8 1017.0 1014.5 1014.2 1016.7 1018.0 1024.9 1021.5 1023.2 1018.8 MAX. QNH PRESSURE IN HPA 1031.0 1027.2 1026.7 1024.5 1025.2 1022.7 1018.5 1019.4 1025.7 1030.4 1028.9 1028.1 1031.0 DAY 6 9 17 1 9 23 27 25 23 17 30 26 MIN. QNH PRESSURE IN HPA 1009.2 1011.7 1006.8 1008.8 1010.4 1010.1 1010.9 1011.7 1013.8 1016.7 1006.4 1015.4 1006.4 DAY 9 15 22 13 7 19 13 12 14 2 14 5 MEAN QFF PRESSURE IN HPA 1024.7 1021.0 1018.4 1012.5 1010.8 1005.8 1004.3 1007.9 1009.9 1021.5 1023.9 1025.2 1015.5 MAX. QFF PRESSURE IN HPA 1034.8 1029.2 1029.4 1021.7 1023.6 1016.4 1009.4 1012.0 1019.8 1029.7 1031.6 1031.3 1034.8 DAY 19 9 17 1 10 23 29 25 23 8 22 7 MIN. QFF PRESSURE IN HPA 1012.3 1010.4 1006.2 1004.3 1003.0 997.8 1001.1 1002.4 1003.7 1009.2 1014.2 1020.8 997.8 DAY 9 3 22 12 7 19 14 12 14 2 1 28 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 882.0 880.8 879.8 878.2 878.3 876.0 875.7 877.7 878.8 885.2 882.8 884.2 879.9 MAX. QFE PRESSURE IN HPA 891.1 887.7 886.7 884.2 885.9 883.0 880.4 880.5 885.2 890.3 889.1 888.3 891.1 DAY 6 9 17 1 9 23 28 18 23 16 30 6 MIN. QFE PRESSURE IN HPA 871.2 874.5 870.9 872.2 874.6 871.7 872.3 873.4 875.2 877.8 874.2 877.6 870.9 DAY 8 15 22 13 13 19 13 12 14 1 14 5 MEAN QNH PRESSURE IN HPA 1020.0 1018.6 1017.5 1015.7 1015.8 1013.2 1012.8 1015.1 1016.4 1023.6 1020.8 1022.5 1017.7 MAX. QNH PRESSURE IN HPA 1030.2 1026.4 1025.3 1022.5 1024.4 1021.1 1018.2 1018.3 1023.6 1029.3 1028.0 1027.1 1030.2 DAY 6 9 17 1 9 23 28 18 23 16 30 6 MIN. QNH PRESSURE IN HPA 1007.8 1011.5 1007.5 1009.0 1011.7 1008.4 1009.1 1010.3 1012.3 1015.3 1011.2 1015.0 1007.5 DAY 8 15 22 13 13 19 13 12 14 1 14 5 MEAN QFF PRESSURE IN HPA 1024.1 1019.9 1017.5 1011.8 1009.8 1004.9 1003.6 1006.5 1008.8 1020.7 1022.9 1024.4 1014.6 MAX. QFF PRESSURE IN HPA 1034.4 1028.0 1027.6 1020.2 1022.4 1014.6 1009.9 1010.5 1017.5 1028.2 1030.1 1030.2 1034.4 DAY 19 9 17 1 9 23 28 25 23 8 22 7 MIN. QFF PRESSURE IN HPA 1012.1 1009.1 1007.8 1003.6 1003.2 997.1 998.9 1001.8 1002.9 1007.8 1014.1 1019.1 997.1 DAY 9 3 9 21 23 19 13 12 14 1 1 28 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 882.8 881.3 880.2 878.4 878.6 876.0 875.6 877.6 879.1 885.8 883.6 884.9 880.3 MAX. QFE PRESSURE IN HPA 892.1 888.1 887.0 884.0 886.4 883.7 880.5 880.4 885.7 890.9 889.5 890.0 892.1 DAY 6 9 17 1 9 22 28 25 23 16 21 6 MIN. QFE PRESSURE IN HPA 872.5 875.3 873.2 873.1 874.2 871.8 872.7 873.3 875.2 878.0 875.6 877.9 871.8 DAY 8 3 22 13 23 19 13 12 14 1 10 4 MEAN QNH PRESSURE IN HPA 1020.9 1019.2 1017.9 1015.9 1016.1 1013.3 1012.8 1015.1 1016.8 1024.3 1021.7 1023.2 1018.1 MAX. QNH PRESSURE IN HPA 1031.3 1026.8 1025.6 1022.2 1024.9 1021.9 1018.3 1018.2 1024.1 1030.0 1028.4 1029.0 1031.3 DAY 6 9 17 1 9 22 28 25 23 16 21 6 MIN. QNH PRESSURE IN HPA 1009.3 1012.4 1010.1 1010.0 1011.2 1008.5 1009.5 1010.2 1012.3 1015.5 1012.8 1015.4 1008.5 DAY 8 3 22 13 23 19 13 12 14 1 10 4 MEAN QFF PRESSURE IN HPA 1026.0 1021.4 1019.0 1012.6 1010.5 1004.9 1003.4 1007.0 1010.5 1023.4 1022.8 1026.4 1015.7 MAX. QFF PRESSURE IN HPA 1036.2 1029.8 1029.3 1021.7 1024.5 1014.8 1010.0 1011.7 1020.2 1030.8 1033.6 1032.4 1036.2 DAY 19 9 17 1 9 22 28 25 23 8 30 6 MIN. QFF PRESSURE IN HPA 1014.3 1010.4 1007.8 1004.7 1002.5 997.4 999.7 1001.8 1004.5 1009.5 1010.2 1017.1 997.4 DAY 9 3 9 20 23 19 13 12 14 2 13 4 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 883.3 882.0 880.8 879.4 879.5 877.4 877.0 878.9 880.3 886.5 885.6 886.1 881.4 MAX. QFE PRESSURE IN HPA 892.0 888.8 888.2 884.7 886.9 885.3 881.5 882.0 886.1 891.7 890.4 890.5 892.0 DAY 6 9 17 24 9 22 27 28 23 16 21 6 MIN. QFE PRESSURE IN HPA 873.2 875.7 872.4 873.9 875.6 873.9 874.2 874.1 875.8 878.9 880.9 882.3 872.4 DAY 8 21 21 11 23 18 12 12 13 1 6 28 MEAN QNH PRESSURE IN HPA 1021.5 1020.0 1018.7 1017.0 1017.2 1014.8 1014.3 1016.5 1018.1 1025.1 1024.1 1024.6 1019.3 MAX. QNH PRESSURE IN HPA 1031.2 1027.6 1027.0 1023.0 1025.5 1023.7 1019.4 1020.0 1024.6 1030.9 1029.4 1029.5 1031.2 DAY 6 9 17 24 9 22 27 28 23 16 21 6 MIN. QNH PRESSURE IN HPA 1010.1 1012.9 1009.2 1010.9 1012.8 1010.9 1011.2 1011.1 1013.0 1016.5 1018.7 1020.3 1009.2 DAY 8 21 21 11 23 18 12 12 13 1 6 28 MEAN QFF PRESSURE IN HPA 1026.1 1022.1 1019.3 1013.2 1011.3 1006.3 1004.6 1007.9 1010.9 1022.9 1025.5 1027.1 1016.4 MAX. QFF PRESSURE IN HPA 1037.2 1029.9 1030.4 1022.8 1025.6 1016.6 1009.2 1011.7 1019.8 1030.5 1032.8 1033.7 1037.2 DAY 19 9 17 24 9 22 28 24 23 8 22 6 MIN. QFF PRESSURE IN HPA 1015.2 1013.0 1008.1 1004.6 1003.8 999.1 1001.5 1002.7 1004.4 1009.4 1016.6 1021.8 999.1 DAY 8 21 8 20 23 18 12 12 14 1 1 28 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 882.9 881.3 880.4 879.0 879.2 877.3 877.1 879.0 880.4 886.5 885.4 885.7 881.2 MAX. QFE PRESSURE IN HPA 891.3 888.9 887.8 884.1 886.5 885.1 881.0 882.9 885.7 891.9 890.1 889.9 891.9 DAY 6 9 17 24 9 22 27 28 22 16 21 6 MIN. QFE PRESSURE IN HPA 873.0 875.7 871.4 873.3 875.4 873.3 874.5 874.4 875.8 879.0 880.0 882.0 871.4 DAY 8 21 21 20 13 18 12 12 13 1 6 28 MEAN QNH PRESSURE IN HPA 1021.0 1019.2 1018.2 1016.6 1016.8 1014.6 1014.5 1016.6 1018.2 1025.0 1023.8 1024.2 1019.1 MAX. QNH PRESSURE IN HPA 1030.4 1027.7 1026.5 1022.3 1025.0 1023.5 1018.9 1021.0 1024.1 1031.1 1029.1 1028.9 1031.1 DAY 6 9 17 24 9 22 27 28 22 16 21 6 MIN. QNH PRESSURE IN HPA 1009.9 1012.9 1008.1 1010.2 1012.6 1010.2 1011.5 1011.4 1013.0 1016.6 1017.7 1020.0 1008.1 DAY 8 21 21 20 13 18 12 12 13 1 6 28 MEAN QFF PRESSURE IN HPA 1024.9 1020.6 1018.0 1012.2 1010.4 1005.8 1004.5 1007.8 1010.2 1021.9 1024.2 1025.7 1015.5 MAX. QFF PRESSURE IN HPA 1036.2 1029.8 1028.6 1021.1 1024.4 1017.1 1008.7 1012.5 1019.0 1028.8 1031.3 1032.9 1036.2 DAY 19 9 17 24 9 22 26 24 23 8 21 6 MIN. QFF PRESSURE IN HPA 1014.2 1012.3 1006.0 1002.2 1003.8 998.0 1001.6 1002.8 1003.7 1009.0 1015.6 1021.6 998.0 DAY 8 4 8 20 23 18 14 12 14 1 1 28 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.3 3.3 10.2 14.2 20.9 27.8 27.4 28.4 17.3 13.8 11.3 2.0 15.0 MINIMUN AIR TEMPERATURE (C) -2.2 -3.5 3.1 6.3 11.6 16.5 17.1 16.3 7.3 5.6 5.1 -2.8 6.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 1 0 0 0 0 0 0 1 DAYS WITH MINIMUM TEMP. <=-4 11 11 0 0 0 0 0 0 0 0 0 15 37 DAYS WITH FREEZING MIN.<= 0 23 24 5 5 0 0 0 0 0 2 4 22 85 TEMPERATURE RECORDS LOWEST(C) -7.4 -10.0 -1.8 -3.8 6.2 11.0 10.6 12.2 3.0 -0.6 -2.0 -11.6 -11.6 DAY 11 20 3 6 8 6 16 19 8 26 11 8 MAXIMUM AIR TEMPERATURE (C) 8.1 8.6 16.6 22.1 28.3 33.6 35.2 34.9 26.2 20.7 18.5 8.6 21.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 4 11 30 31 31 3 0 0 0 110 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 1 1 TEMPERATURE RECORDS HIGHEST(C) 15.8 16.4 24.2 33.2 32.6 38.8 38.5 39.2 32.4 26.4 23.4 17.6 39.2 DAY 5 28 22 26 14 17 7 1 1 20 5 20 DIF. BETWEEN (MAX.-MIN.) (C) 10.3 12.1 13.5 15.8 16.7 17.1 18.1 18.6 18.9 15.1 13.4 11.4 15.1 MEAN DAILY TEMP. (MDT) (C) 3.0 2.5 9.9 14.2 20.0 25.0 26.2 25.6 16.7 13.1 11.8 2.9 14.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 8.4 17.2 121.2 160.2 142.4 1.0 0.0 0.0 0.0 450.6 HEATING DEG. DAYS(BASE 18 0C) 466.5 432.7 252.5 139.1 10.9 0.0 0.0 0.0 52.3 150.8 186.8 467.4 2158.9 DEWPOINT (MEAN C) -2.1 -4.9 2.0 2.6 3.3 2.9 5.2 10.4 0.4 2.3 1.5 -4.2 1.6 MIXING RATIO (G/KG) 3.86 3.17 5.22 5.50 5.75 5.62 6.53 9.34 4.58 5.35 5.11 3.38 5.28 VAPOUR PRESSURE (HPA) 5.44 4.45 7.32 7.70 8.04 7.83 9.08 12.95 6.45 7.54 7.17 4.77 7.40 SATURATION DEF. (HPA) 2.64 3.84 5.86 10.32 18.17 31.04 28.97 27.44 14.62 9.30 7.01 2.89 13.51 RELATIVE HUMIDITY (MEAN %) 71 60 63 51 37 23 27 35 34 51 56 68 48 RELATIVE HUMIDITY (MAX. %) 91 85 90 80 62 40 43 50 48 76 80 89 70 RELATIVE HUMIDITY (MIN. %) 52 41 37 25 17 13 14 24 22 30 32 38 29 RELATIVE HUMIDITY (MEAN% 03UTC) 89 84 84 76 55 40 40 49 47 75 74 85 67 RELATIVE HUMIDITY (MEAN% 09UTC) 59 47 44 31 20 16 18 26 24 34 36 47 34 RELATIVE HUMIDITY (MEAN% 15UTC) 77 59 56 35 26 17 18 34 29 46 52 65 43 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 42.6 6.9 70.3 6.8 16.7 0.0 0.0 0.0 0.0 12.4 25.7 9.7 191.1 DAYS WITH PRECIPITATION >=10 0 0 3 0 1 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 5 5 0 3 0 2 0 0 0 0 1 3 0 14 DAYS WITH PRECIPITATION >= 1 8 1 9 3 2 0 0 0 0 3 4 3 33 DAYS WITH PRECIPITATION 13 13 17 7 6 1 0 0 0 9 7 5 78 GREATEST DAILY PRECIPITATION 9.0 3.0 28.2 3.0 10.4 0.0 0.0 0.0 0.0 8.0 9.2 4.5 28.2 DAY 3 4 13 19 1 ** ** ** ** 4 26 1 DAY WITH THUNDER STORM 0 1 2 0 3 0 0 0 0 0 2 0 8 DAYS WITH SNOW OR SLEET 3 4 2 0 0 0 0 0 0 0 0 2 11 DAYS WITH DUST 0 0 0 0 0 5 3 1 0 0 0 0 9 WIND DIRECTION (PREVAILING) 270 90 90 90 90 90 90 90 90 90 270 90 90 PREVAILING WIND SPEED(KNOTS) 6.9 6.2 7.6 6.9 7.1 12.3 11.4 11.5 8.4 6.0 4.8 8.0 9.5 PREVAILING WIND PERCENT 7.1 7.1 11.2 9.2 13.9 27.8 20.6 26.3 14.8 3.8 4.2 3.6 11.6 CALMS PERCENT OF WIND 81.3 77.1 67.8 70.8 66.1 61.7 57.9 61.1 76.1 88.6 79.6 85.5 72.9 NO. OF WIND OBSERVATION 155 140 214 240 230 162 228 167 230 185 240 248 2439 VECTOR WIND DIRECTION (MEAN) 265 129 67 169 118 89 104 95 107 81 3 134 99 VECTOR WIND MAGNITUDE(KNOTS) 1.0 0.3 0.7 0.2 0.5 3.1 2.4 3.0 1.2 0.1 0.1 0.1 0.8 WIND STEADINESES (MEAN %) 76.9 23.1 35.0 11.1 22.7 75.6 63.2 75.0 66.7 14.3 9.1 10.0 38.1 WIND SPEED (MEAN KNOTS) 1.3 1.3 2.0 1.8 2.2 4.1 3.8 4.0 1.8 0.7 1.1 1.0 2.1 FASTEST WIND DIRECTION 200 60 320 130 240 90 110 110 110 330 190 190 90 FASTEST WIND SPEED (KNOTS) 12 12 16 17 19 21 19 19 17 14 14 14 21 DAY 5 1 4 2 15 4 1 2 13 8 26 5 DAYS WITH SKY CLEAR (0-2)/8 13 8 7 6 16 24 31 31 28 17 13 13 207 DAYS WITH P.CLOUDY (3-6)/8 7 11 14 21 14 6 0 0 2 8 8 14 105 DAYS WITH CLOUDY (7-8)/8 11 9 10 3 1 0 0 0 0 6 9 4 53 DAYS WITH VISIBILITY =< 2 KM 2 1 3 0 0 1 0 0 0 1 1 0 9 DURATION OF SUNSHINE HOURS 150.2 158.9 200.4 257.8 323.6 364.2 393.4 371.2 323.2 251.2 205.6 194.6 3194.3 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 882.4 879.7 880.0 880.5 879.1 874.6 874.2 876.1 883.6 885.2 882.1 883.7 880.1 MAX. QFE PRESSURE IN HPA 892.7 889.8 886.9 892.5 885.1 880.7 878.6 880.9 891.4 890.3 888.9 892.4 892.7 DAY-HOUR 10- 6 18- 6 18- 6 5- 6 18-21 9- 6 13- 6 15- 6 23- 6 10- 6 2- 6 8- 6 MIN. QFE PRESSURE IN HPA 871.8 868.9 871.2 870.0 870.7 867.9 869.8 869.9 876.1 878.9 870.2 868.5 867.9 DAY-HOUR 16-15 1-15 12-12 2-15 1-15 22-15 20-12 1-12 1-12 14-12 26- 6 4- 9 MEAN QNH PRESSURE IN HPA 1020.4 1017.4 1017.7 1018.3 1016.7 1011.7 1011.2 1013.3 1021.8 1023.6 1020.0 1021.9 1017.8 MAX. QNH PRESSURE IN HPA 1032.0 1028.8 1025.5 1031.8 1023.5 1018.5 1016.2 1018.7 1030.6 1029.3 1027.7 1031.7 1032.0 DAY-HOUR 10- 6 18- 6 18- 6 5- 6 18-21 9- 6 13- 6 15- 6 23- 6 10- 6 2- 6 8- 6 MIN. QNH PRESSURE IN HPA 1008.5 1005.2 1007.8 1006.5 1007.3 1004.1 1006.3 1006.4 1013.3 1016.5 1006.7 1004.8 1004.1 DAY-HOUR 16-15 1-15 12-12 2-15 1-15 22-15 20-12 1-12 1-12 14-12 26- 6 4- 9 MEAN QFF PRESSURE IN HPA ****** ****** 1016.1 1014.6 1009.8 ****** 1001.2 ****** 1016.9 1021.3 1017.8 1024.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1026.2 1035.1 1018.9 ****** 1007.8 ****** 1026.0 1027.7 1025.2 1039.9 ****** DAY-HOUR **-** **-** 3-18 5- 6 19- 3 **-** 3- 3 **-** 23- 6 10- 3 20- 3 8- 3 MIN. QFF PRESSURE IN HPA ****** ****** 1003.1 1000.3 1000.6 ****** 995.7 ****** 1007.1 1012.1 1003.9 1000.7 ****** DAY-HOUR **-** **-** 8- 0 2-12 1-21 **-** 7-15 **-** 1-15 2- 9 26- 6 4- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 879.7 880.5 879.1 ****** 874.8 ****** 883.8 ****** 881.8 883.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** 884.4 888.9 884.6 ****** 877.6 ****** 889.9 ****** 887.5 890.3 ****** DAY ** ** 4 5 19 ** 2 ** 23 ** 3 8 MIN. QFE PRESSURE IN HPA ****** ****** 872.1 872.9 871.7 ****** 871.4 ****** 879.0 ****** 872.0 868.6 ****** DAY ** ** 8 3 2 ** 21 ** 3 ** 26 4 MEAN QNH PRESSURE IN HPA ****** ****** 1017.4 1018.3 1016.7 ****** 1011.8 ****** 1022.0 ****** 1019.8 1021.5 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1022.7 1027.7 1022.9 ****** 1015.0 ****** 1028.9 ****** 1026.2 1029.3 ****** DAY ** ** 4 5 19 ** 2 ** 23 ** 3 8 MIN. QNH PRESSURE IN HPA ****** ****** 1008.8 1009.7 1008.4 ****** 1008.1 ****** 1016.6 ****** 1008.7 1004.9 ****** DAY ** ** 8 3 2 ** 21 ** 3 ** 26 4 MEAN QFF PRESSURE IN HPA ****** ****** 1015.2 1014.3 1010.0 ****** 1001.7 ****** 1016.7 ****** 1017.0 1023.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1023.1 1030.2 1018.8 ****** 1005.9 ****** 1024.2 ****** 1022.5 1037.5 ****** DAY ** ** 4 6 19 ** 13 ** 23 ** 3 8 MIN. QFF PRESSURE IN HPA ****** ****** 1003.1 1001.2 1004.1 ****** 997.3 ****** 1008.9 ****** 1006.0 1000.7 ****** DAY ** ** 8 27 6 ** 21 ** 3 ** 26 4 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 882.3 879.9 880.2 881.2 879.7 876.0 875.5 877.1 884.4 885.7 882.3 883.9 880.7 MAX. QFE PRESSURE IN HPA 891.7 888.6 885.9 890.8 885.0 880.5 878.4 880.1 890.7 889.7 887.9 891.6 891.7 DAY 10 18 18 5 19 9 3 16 23 10 2 8 MIN. QFE PRESSURE IN HPA 872.0 871.6 873.0 874.2 872.4 871.2 871.8 871.6 878.6 880.3 870.5 869.6 869.6 DAY 17 9 13 2 2 22 8 3 1 15 26 4 MEAN QNH PRESSURE IN HPA 1020.3 1017.6 1018.0 1019.1 1017.4 1013.2 1012.7 1014.5 1022.7 1024.1 1020.3 1022.1 1018.5 MAX. QNH PRESSURE IN HPA 1030.9 1027.4 1024.4 1029.9 1023.4 1018.3 1015.9 1017.8 1029.8 1028.6 1026.6 1030.8 1030.9 DAY 10 18 18 5 19 9 3 16 23 10 2 8 MIN. QNH PRESSURE IN HPA 1008.7 1008.3 1009.9 1011.2 1009.2 1007.8 1008.5 1008.3 1016.2 1018.1 1007.0 1006.0 1006.0 DAY 17 9 13 2 2 22 8 3 1 15 26 4 MEAN QFF PRESSURE IN HPA 1023.8 1021.2 1017.3 1015.9 1010.8 1004.0 1003.0 1005.2 1018.7 1022.1 1019.1 1025.9 1015.6 MAX. QFF PRESSURE IN HPA 1035.9 1032.3 1025.2 1033.2 1018.9 1010.5 1007.8 1008.4 1025.9 1027.7 1025.2 1039.9 1039.9 DAY 10 19 4 5 19 9 3 16 23 10 20 8 MIN. QFF PRESSURE IN HPA 1009.6 1008.9 1007.1 1004.3 1003.8 997.4 997.6 997.0 1009.5 1013.9 1004.7 1003.4 997.0 DAY 17 9 12 27 6 22 8 3 1 16 26 4 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 883.4 880.9 881.0 881.8 880.1 876.1 875.6 877.5 885.0 886.4 883.1 884.8 881.3 MAX. QFE PRESSURE IN HPA 892.7 889.8 886.9 892.5 884.7 880.7 878.6 880.9 891.4 890.3 888.9 892.4 892.7 DAY 10 18 18 5 19 9 13 15 23 10 2 8 MIN. QFE PRESSURE IN HPA 874.9 872.3 872.7 874.0 873.6 871.4 872.1 872.0 879.0 881.4 870.2 869.3 869.3 DAY 17 9 15 2 1 5 8 2 1 15 26 4 MEAN QNH PRESSURE IN HPA 1021.6 1018.7 1018.9 1019.8 1017.8 1013.4 1012.8 1015.0 1023.3 1024.9 1021.2 1023.1 1019.2 MAX. QNH PRESSURE IN HPA 1032.0 1028.8 1025.5 1031.8 1023.0 1018.5 1016.2 1018.7 1030.6 1029.3 1027.7 1031.7 1032.0 DAY 10 18 18 5 19 9 13 15 23 10 2 8 MIN. QNH PRESSURE IN HPA 1012.0 1009.1 1009.5 1011.0 1010.5 1008.1 1008.8 1008.7 1016.6 1019.3 1006.7 1005.7 1005.7 DAY 17 9 15 2 1 5 8 2 1 15 26 4 MEAN QFF PRESSURE IN HPA ****** ****** 1017.2 1016.3 1011.1 ****** 1002.8 ****** 1018.7 ****** 1019.0 1026.2 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1024.7 1035.1 1018.9 ****** 1007.4 ****** 1026.0 ****** 1024.9 1039.4 ****** DAY ** ** 3 5 19 ** 13 ** 23 ** 2 8 MIN. QFF PRESSURE IN HPA ****** ****** 1010.4 1004.7 1003.8 ****** 997.6 ****** 1012.5 ****** 1003.9 1002.6 ****** DAY ** ** 8 27 1 ** 8 ** 3 ** 26 4 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 882.3 879.8 880.2 880.7 879.0 874.8 874.2 876.1 883.7 885.1 881.9 883.4 880.1 MAX. QFE PRESSURE IN HPA 890.6 888.4 885.9 892.3 883.8 879.7 877.1 879.7 890.3 889.3 887.8 890.8 892.3 DAY 10 18 18 5 21 8 13 15 23 10 2 8 MIN. QFE PRESSURE IN HPA 875.1 871.1 871.6 873.4 872.4 869.2 871.1 870.7 878.0 880.4 870.9 868.5 868.5 DAY 25 12 15 2 1 29 8 2 1 15 26 4 MEAN QNH PRESSURE IN HPA 1020.4 1017.5 1017.9 1018.6 1016.7 1011.9 1011.2 1013.3 1021.9 1023.5 1019.9 1021.6 1017.9 MAX. QNH PRESSURE IN HPA 1029.7 1027.2 1024.4 1031.6 1022.0 1017.4 1014.5 1017.4 1029.3 1028.2 1026.5 1029.9 1031.6 DAY 10 18 18 5 21 8 13 15 23 10 2 8 MIN. QNH PRESSURE IN HPA 1012.2 1007.7 1008.3 1010.3 1009.2 1005.6 1007.7 1007.3 1015.5 1018.2 1007.5 1004.8 1004.8 DAY 25 12 15 2 1 29 8 2 1 15 26 4 MEAN QFF PRESSURE IN HPA ****** ****** 1015.6 1014.4 1009.4 ****** 1000.8 ****** 1016.5 ****** 1017.1 1023.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1023.7 1034.6 1017.0 ****** 1005.4 ****** 1024.0 ****** 1023.0 1036.5 ****** DAY ** ** 3 5 19 ** 13 ** 22 ** 2 8 MIN. QFF PRESSURE IN HPA ****** ****** 1008.7 1002.7 1001.5 ****** 996.8 ****** 1008.9 ****** 1006.0 1001.5 ****** DAY ** ** 8 27 6 ** 8 ** 3 ** 26 4 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 881.9 878.7 879.0 879.4 877.9 873.3 872.7 874.6 882.3 884.2 881.3 882.9 879.0 MAX. QFE PRESSURE IN HPA 889.2 886.3 884.3 890.9 882.5 878.3 875.6 877.9 889.0 888.4 886.7 889.6 890.9 DAY 10 18 18 5 21 8 13 15 23 10 2 8 MIN. QFE PRESSURE IN HPA 872.9 869.5 871.2 870.1 871.3 868.0 869.8 869.9 876.1 878.9 871.5 869.7 868.0 DAY 16 1 12 2 1 22 20 1 1 14 26 4 MEAN QNH PRESSURE IN HPA 1019.9 1016.3 1016.6 1017.1 1015.4 1010.2 1009.6 1011.7 1020.3 1022.4 1019.2 1021.0 1016.6 MAX. QNH PRESSURE IN HPA 1028.1 1024.8 1022.6 1030.0 1020.5 1015.8 1012.8 1015.4 1027.9 1027.2 1025.3 1028.5 1030.0 DAY 10 18 18 5 21 8 13 15 23 10 2 8 MIN. QNH PRESSURE IN HPA 1009.7 1005.9 1007.8 1006.6 1007.9 1004.2 1006.3 1006.4 1013.3 1016.5 1008.2 1006.1 1004.2 DAY 16 1 12 2 1 22 20 1 1 14 26 4 MEAN QFF PRESSURE IN HPA ****** ****** 1014.5 1013.1 1008.8 ****** 999.5 ****** 1015.1 ****** 1016.4 1023.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1022.4 1032.7 1015.6 ****** 1004.0 ****** 1022.9 ****** 1022.0 1035.9 ****** DAY ** ** 3 5 19 ** 13 ** 23 ** 19 8 MIN. QFF PRESSURE IN HPA ****** ****** 1008.0 1000.3 1000.9 ****** 995.9 ****** 1007.7 ****** 1006.1 1003.1 ****** DAY ** ** 8 2 6 ** 21 ** 3 ** 26 4 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 882.1 879.4 879.5 879.6 878.1 873.2 872.7 874.7 882.5 884.6 881.9 883.6 879.3 MAX. QFE PRESSURE IN HPA 889.6 887.1 885.1 890.9 882.4 878.0 875.7 877.6 889.0 888.7 886.2 889.8 890.9 DAY 9 18 3 5 18 8 2 15 23 10 2 7 MIN. QFE PRESSURE IN HPA 871.8 868.9 871.4 870.0 870.7 867.9 869.9 870.0 876.3 879.2 875.1 870.0 867.9 DAY 16 1 12 2 1 22 7 1 1 14 26 4 MEAN QNH PRESSURE IN HPA 1020.1 1017.0 1017.1 1017.2 1015.6 1010.1 1009.5 1011.8 1020.6 1022.9 1019.9 1021.8 1017.0 MAX. QNH PRESSURE IN HPA 1028.5 1025.7 1023.5 1030.0 1020.4 1015.5 1012.9 1015.0 1027.9 1027.5 1024.7 1028.8 1030.0 DAY 9 18 3 5 18 8 2 15 23 10 2 7 MIN. QNH PRESSURE IN HPA 1008.5 1005.2 1008.1 1006.5 1007.3 1004.1 1006.4 1006.5 1013.6 1016.8 1012.2 1006.5 1004.1 DAY 16 1 12 2 1 22 7 1 1 14 26 4 MEAN QFF PRESSURE IN HPA 1023.5 1020.5 1016.4 1014.1 1008.9 1000.9 999.8 1002.3 1016.5 1020.9 1018.7 1025.6 1014.0 MAX. QFF PRESSURE IN HPA 1033.4 1031.7 1025.8 1032.7 1016.1 1007.6 1004.4 1005.5 1024.4 1026.4 1023.8 1037.0 1037.0 DAY 10 18 3 5 19 8 2 31 22 10 19 8 MIN. QFF PRESSURE IN HPA 1011.1 1004.6 1004.1 1000.9 1002.1 993.2 995.7 995.2 1007.1 1013.3 1010.9 1005.1 993.2 DAY 16 1 12 2 1 22 7 2 1 2 26 4 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 880.5 880.6 879.4 ****** 874.0 ****** 883.7 ****** 882.3 884.0 ****** MAX. QFE PRESSURE IN HPA ****** ****** 885.9 890.6 884.6 ****** 877.4 ****** 890.0 ****** 888.0 890.4 ****** DAY ** ** 3 5 18 ** 13 ** 22 ** 2 7 MIN. QFE PRESSURE IN HPA ****** ****** 873.0 871.7 871.3 ****** 870.6 ****** 878.1 ****** 876.2 870.3 ****** DAY ** ** 7 2 1 ** 20 ** 2 ** 25 4 MEAN QNH PRESSURE IN HPA ****** ****** 1018.4 1018.4 1017.1 ****** 1011.0 ****** 1021.9 ****** 1020.4 1022.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1024.4 1029.7 1022.9 ****** 1014.8 ****** 1029.0 ****** 1026.7 1029.4 ****** DAY ** ** 3 5 18 ** 13 ** 22 ** 2 7 MIN. QNH PRESSURE IN HPA ****** ****** 1009.9 1008.4 1007.9 ****** 1007.2 ****** 1015.6 ****** 1013.5 1006.8 ****** DAY ** ** 7 2 1 ** 20 ** 2 ** 25 4 MEAN QFF PRESSURE IN HPA ****** ****** 1016.5 1014.8 1010.1 ****** 1001.0 ****** 1016.9 ****** 1018.1 1025.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1026.2 1033.1 1018.8 ****** 1005.6 ****** 1024.8 ****** 1023.6 1037.2 ****** DAY ** ** 3 5 7 ** 13 ** 22 ** 10 7 MIN. QFF PRESSURE IN HPA ****** ****** 1005.9 1001.7 1002.2 ****** 997.3 ****** 1008.9 ****** 1009.4 1005.4 ****** DAY ** ** 7 26 1 ** 7 ** 2 ** 17 4 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 880.2 880.5 879.5 ****** 874.7 ****** 883.8 ****** 881.9 883.6 ****** MAX. QFE PRESSURE IN HPA ****** ****** 885.5 890.1 885.1 ****** 877.4 ****** 890.0 ****** 887.6 890.9 ****** DAY ** ** 3 5 18 ** 13 ** 22 ** 2 7 MIN. QFE PRESSURE IN HPA ****** ****** 872.7 872.7 871.2 ****** 872.0 ****** 879.0 ****** 874.8 870.3 ****** DAY ** ** 7 2 1 ** 7 ** 2 ** 25 3 MEAN QNH PRESSURE IN HPA ****** ****** 1018.0 1018.3 1017.2 ****** 1011.7 ****** 1022.0 ****** 1019.9 1021.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1023.9 1029.1 1023.5 ****** 1014.8 ****** 1029.0 ****** 1026.3 1030.0 ****** DAY ** ** 3 5 18 ** 13 ** 22 ** 2 7 MIN. QNH PRESSURE IN HPA ****** ****** 1009.5 1009.5 1007.8 ****** 1008.7 ****** 1016.6 ****** 1011.9 1006.8 ****** DAY ** ** 7 2 1 ** 7 ** 2 ** 25 3 MEAN QFF PRESSURE IN HPA ****** ****** 1015.5 1014.0 1009.7 ****** 1001.2 ****** 1016.3 ****** 1017.1 1024.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1025.2 1032.2 1018.8 ****** 1005.4 ****** 1023.9 ****** 1022.6 1037.1 ****** DAY ** ** 3 5 18 ** 13 ** 22 ** 10 7 MIN. QFF PRESSURE IN HPA ****** ****** 1003.9 1001.3 1000.6 ****** 997.9 ****** 1009.1 ****** 1009.4 1002.8 ****** DAY ** ** 7 26 1 ** 7 ** 2 ** 25 3 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.3 3.9 7.8 13.8 18.4 24.1 28.6 26.5 20.2 13.1 9.3 1.6 14.2 MINIMUN AIR TEMPERATURE (C) -2.3 -1.6 1.8 7.6 9.0 13.7 18.3 16.0 10.7 4.6 0.9 -3.5 6.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 4 0 0 0 0 0 4 DAYS WITH MINIMUM TEMP. <=-4 10 8 3 0 0 0 0 0 0 2 3 16 42 DAYS WITH FREEZING MIN.<= 0 27 21 11 1 0 0 0 0 0 9 16 26 111 TEMPERATURE RECORDS LOWEST(C) -7.0 -11.4 -6.6 -0.4 3.4 7.6 13.2 10.8 5.2 -7.6 -8.6 -8.4 -11.4 DAY 10 26 6 8 21 2 27 8 4 19 29 21 MAXIMUM AIR TEMPERATURE (C) 10.6 10.7 14.4 21.0 26.5 32.3 36.9 35.6 29.6 22.6 19.1 8.0 22.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 4 24 31 31 14 3 0 0 107 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 16.4 17.0 22.6 29.2 34.1 39.4 40.6 39.6 35.6 30.8 26.8 12.8 40.6 DAY 30 4 26 4 7 30 16 23 20 5 11 4 DIF. BETWEEN (MAX.-MIN.) (C) 12.9 12.3 12.6 13.4 17.5 18.6 18.6 19.6 18.9 18.0 18.2 11.5 16.0 MEAN DAILY TEMP. (MDT) (C) 4.2 4.6 8.1 14.3 17.8 23.0 27.6 25.8 20.2 13.6 10.0 2.3 14.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 7.3 69.7 205.5 147.5 24.7 0.2 0.0 0.0 454.9 HEATING DEG. DAYS(BASE 18 0C) 429.2 376.5 307.2 114.5 32.7 0.6 0.0 0.0 11.9 146.6 240.3 488.0 2147.5 DEWPOINT (MEAN C) -3.4 -2.3 -1.4 4.9 2.5 5.0 6.5 6.7 1.9 -3.0 -6.6 -4.7 0.5 MIXING RATIO (G/KG) 3.45 3.84 4.23 6.51 5.62 6.51 7.22 7.37 5.32 3.92 2.83 3.19 5.00 VAPOUR PRESSURE (HPA) 4.88 5.40 5.93 9.09 7.88 9.07 10.01 10.26 7.45 5.52 3.99 4.52 7.00 SATURATION DEF. (HPA) 3.26 3.20 5.33 7.62 14.50 22.69 31.08 26.50 18.14 11.34 9.25 2.64 12.96 RELATIVE HUMIDITY (MEAN %) 67 69 59 62 41 34 27 32 35 38 37 67 47 RELATIVE HUMIDITY (MAX. %) 90 90 87 84 71 58 44 48 55 61 58 89 70 RELATIVE HUMIDITY (MIN. %) 36 41 32 38 17 16 15 18 19 18 18 42 26 RELATIVE HUMIDITY (MEAN% 03UTC) 87 86 82 79 60 48 40 45 50 57 52 85 64 RELATIVE HUMIDITY (MEAN% 09UTC) 45 53 40 43 22 18 18 21 23 23 23 50 32 RELATIVE HUMIDITY (MEAN% 15UTC) 59 62 45 51 30 22 18 23 27 30 33 61 38 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 9.0 69.2 30.9 39.6 4.9 4.3 0.0 0.0 7.2 0.4 2.2 6.8 174.5 DAYS WITH PRECIPITATION >=10 0 2 1 1 0 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 5 0 5 2 2 0 0 0 0 1 0 0 0 10 DAYS WITH PRECIPITATION >= 1 3 8 6 6 2 1 0 0 2 0 1 3 32 DAYS WITH PRECIPITATION 8 9 8 15 4 3 0 0 2 2 3 9 63 GREATEST DAILY PRECIPITATION 4.1 20.0 12.0 13.0 2.0 4.0 0.0 0.0 5.2 0.4 1.2 2.1 20.0 DAY 18 24 18 16 1 28 ** ** 22 13 26 5 DAY WITH THUNDER STORM 0 0 3 2 3 3 0 0 1 0 1 0 13 DAYS WITH SNOW OR SLEET 3 3 0 0 0 0 0 0 0 0 2 3 11 DAYS WITH DUST 0 0 1 0 0 1 1 3 2 0 2 0 10 WIND DIRECTION (PREVAILING) 225 90 90 270 90 90 90 90 90 90 270 315 90 PREVAILING WIND SPEED(KNOTS) 5.7 6.0 5.2 8.2 7.3 9.0 9.8 9.2 7.2 7.7 7.8 4.7 8.1 PREVAILING WIND PERCENT 2.8 4.9 7.3 4.2 7.7 12.5 18.1 11.3 12.5 5.3 3.8 1.2 7.4 CALMS PERCENT OF WIND 88.3 81.3 84.3 82.9 78.6 75.0 72.6 73.4 76.3 85.4 84.6 96.4 81.6 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 247 240 248 2919 VECTOR WIND DIRECTION (MEAN) 246 59 145 208 120 103 99 72 129 134 290 28 103 VECTOR WIND MAGNITUDE(KNOTS) 0.1 0.2 0.2 0.2 0.2 1.0 2.0 1.0 0.6 0.2 0.2 R< 0.1 0.4 WIND STEADINESES (MEAN %) 14.3 16.7 22.2 18.2 12.5 55.6 80.0 47.6 35.3 18.2 22.2 13.7 30.8 WIND SPEED (MEAN KNOTS) 0.7 1.2 0.9 1.1 1.6 1.8 2.5 2.1 1.7 1.1 0.9 0.2 1.3 FASTEST WIND DIRECTION 80 20 90 250 100 80 90 310 260 250 200 100 90 FASTEST WIND SPEED (KNOTS) 16 14 31 16 16 19 19 17 16 19 25 10 31 DAY 22 8 14 6 12 14 8 13 20 12 26 23 DAYS WITH SKY CLEAR (0-2)/8 16 13 15 5 19 24 30 31 24 26 22 14 239 DAYS WITH P.CLOUDY (3-6)/8 10 9 12 10 9 6 1 0 6 5 8 7 83 DAYS WITH CLOUDY (7-8)/8 5 6 4 15 3 0 0 0 0 0 0 10 43 DAYS WITH VISIBILITY =< 2 KM 0 2 2 1 0 0 0 0 3 0 2 3 13 DURATION OF SUNSHINE HOURS 93.2 ****** ****** ****** ****** 195.6 363.3 349.5 287.4 304.0 254.6 171.6 ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 883.6 881.4 880.4 878.9 880.6 876.1 873.6 876.7 879.6 883.7 882.9 885.1 880.2 MAX. QFE PRESSURE IN HPA 892.5 888.0 888.9 884.6 886.4 883.3 877.8 883.7 886.1 893.1 890.8 891.2 893.1 DAY-HOUR 7- 6 17-18 3- 6 7- 6 26- 6 1- 6 4- 3 25- 6 13- 6 18- 6 16- 3 11- 6 MIN. QFE PRESSURE IN HPA 876.1 873.4 867.7 872.0 875.0 868.6 866.7 871.8 873.1 875.5 867.6 879.1 866.7 DAY-HOUR 1-12 5-12 26-12 24-21 8- 0 30-21 1-12 3-12 19-12 12-12 26- 0 4-12 MEAN QNH PRESSURE IN HPA 1021.8 1019.3 1018.2 1016.5 1018.4 1013.4 1010.5 1014.1 1017.2 1021.9 1021.0 1023.5 1018.0 MAX. QNH PRESSURE IN HPA 1031.8 1026.7 1027.7 1022.9 1024.9 1021.4 1015.3 1021.9 1024.6 1032.5 1029.9 1030.3 1032.5 DAY-HOUR 7- 6 17-18 3- 6 7- 6 26- 6 1- 6 4- 3 25- 6 13- 6 18- 6 16- 3 11- 6 MIN. QNH PRESSURE IN HPA 1013.3 1010.3 1003.9 1008.7 1012.1 1004.9 1002.8 1008.5 1010.0 1012.7 1003.8 1016.7 1002.8 DAY-HOUR 1-12 5-12 26-12 24-21 8- 0 30-21 1-12 3-12 19-12 12-12 26- 0 4-12 MEAN QFF PRESSURE IN HPA 1024.0 1021.1 1017.8 1012.8 1012.6 1004.8 999.7 1004.2 1010.6 1019.0 1020.0 1026.6 1014.4 MAX. QFF PRESSURE IN HPA 1035.1 1030.6 1030.9 1022.2 1022.2 1015.5 1006.1 1013.3 1020.4 1035.2 1034.3 1036.4 1036.4 DAY-HOUR 7- 6 17-18 5-18 7- 6 28-18 1- 6 25- 3 25- 6 22- 6 18- 6 28- 3 11- 3 MIN. QFF PRESSURE IN HPA 1013.6 1008.5 999.2 1004.7 1002.6 992.6 991.2 997.5 1000.5 1005.7 999.6 1017.9 991.2 DAY-HOUR 17-12 9-12 26-12 24-21 8- 0 30-21 1-12 3-15 20-12 12-21 26- 0 4-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 883.4 881.3 879.9 878.4 880.3 876.4 873.7 876.9 879.5 883.7 882.5 885.0 880.1 MAX. QFE PRESSURE IN HPA 890.1 886.1 887.5 882.0 885.4 882.1 876.8 882.0 884.0 892.5 890.5 890.8 892.5 DAY 8 18 3 1 27 1 25 25 13 18 16 11 MIN. QFE PRESSURE IN HPA 877.6 874.2 870.1 872.4 875.0 871.4 868.4 873.1 875.3 877.6 867.6 881.0 867.6 DAY 12 9 26 25 8 30 1 23 20 13 26 26 MEAN QNH PRESSURE IN HPA 1021.5 1019.1 1017.7 1016.0 1018.0 1013.7 1010.7 1014.2 1017.2 1021.9 1020.5 1023.3 1017.8 MAX. QNH PRESSURE IN HPA 1029.1 1024.6 1026.2 1020.0 1023.8 1020.1 1014.1 1020.0 1022.2 1031.8 1029.5 1029.9 1031.8 DAY 8 18 3 1 27 1 25 25 13 18 16 11 MIN. QNH PRESSURE IN HPA 1015.0 1011.2 1006.6 1009.2 1012.1 1008.1 1004.7 1010.0 1012.4 1015.0 1003.8 1018.9 1003.8 DAY 12 9 26 25 8 30 1 23 20 13 26 26 MEAN QFF PRESSURE IN HPA 1023.0 1020.3 1017.0 1012.3 1012.3 1005.5 999.8 1004.3 1010.2 1018.7 1018.8 1025.9 1014.0 MAX. QFF PRESSURE IN HPA 1032.6 1028.4 1028.5 1019.1 1020.5 1014.6 1004.5 1010.0 1017.3 1033.0 1032.5 1034.6 1034.6 DAY 8 26 6 8 29 2 25 25 23 18 28 11 MIN. QFF PRESSURE IN HPA 1014.4 1008.8 1001.7 1004.9 1002.6 997.3 993.2 998.8 1001.8 1007.8 999.6 1018.7 993.2 DAY 18 9 26 25 8 23 1 23 21 13 26 26 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 883.7 881.7 880.5 879.1 881.2 877.2 874.5 877.6 880.3 884.3 883.1 885.3 880.7 MAX. QFE PRESSURE IN HPA 890.7 886.3 887.8 883.2 885.7 882.6 877.8 883.2 885.2 892.7 890.8 890.9 892.7 DAY 7 12 3 7 26 1 4 25 13 18 16 11 MIN. QFE PRESSURE IN HPA 877.6 874.6 869.8 872.8 876.6 871.8 869.3 873.7 876.0 878.6 868.5 880.2 868.5 DAY 12 24 26 25 8 30 1 23 20 13 26 6 MEAN QNH PRESSURE IN HPA 1021.9 1019.6 1018.3 1016.8 1019.1 1014.6 1011.6 1015.1 1018.0 1022.6 1021.2 1023.7 1018.5 MAX. QNH PRESSURE IN HPA 1029.8 1024.8 1026.5 1021.3 1024.1 1020.7 1015.3 1021.3 1023.6 1032.0 1029.9 1030.0 1032.0 DAY 7 12 3 7 26 1 4 25 13 18 16 11 MIN. QNH PRESSURE IN HPA 1015.0 1011.7 1006.3 1009.6 1013.9 1008.5 1005.7 1010.6 1013.2 1016.2 1004.8 1018.0 1004.8 DAY 12 24 26 25 8 30 1 23 20 13 26 6 MEAN QFF PRESSURE IN HPA 1025.0 1022.1 1018.5 1013.5 1013.6 1006.0 1001.1 1005.7 1012.1 1020.9 1021.7 1027.8 1015.7 MAX. QFF PRESSURE IN HPA 1033.0 1029.8 1030.8 1020.5 1019.3 1015.0 1006.1 1013.2 1018.6 1034.9 1034.3 1036.4 1036.4 DAY 7 26 6 7 29 1 25 25 23 18 28 11 MIN. QFF PRESSURE IN HPA 1015.8 1010.9 1001.8 1006.1 1005.5 997.4 994.0 1000.4 1004.2 1010.5 1002.8 1020.3 994.0 DAY 18 24 26 25 8 30 17 23 21 13 26 6 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 884.9 882.6 881.5 879.9 881.6 877.4 874.7 878.1 880.9 885.1 884.1 886.3 881.4 MAX. QFE PRESSURE IN HPA 892.5 887.0 888.9 884.6 886.4 883.3 877.7 883.7 886.1 893.1 890.8 891.2 893.1 DAY 7 12 3 7 26 1 4 25 13 18 16 11 MIN. QFE PRESSURE IN HPA 879.1 875.7 870.2 873.9 876.8 872.3 869.5 874.8 876.4 879.3 872.4 881.6 869.5 DAY 12 24 26 25 8 30 1 3 19 12 26 6 MEAN QNH PRESSURE IN HPA 1023.3 1020.6 1019.5 1017.6 1019.5 1014.8 1011.7 1015.6 1018.8 1023.4 1022.3 1024.9 1019.3 MAX. QNH PRESSURE IN HPA 1031.8 1025.6 1027.7 1022.9 1024.9 1021.4 1015.1 1021.9 1024.6 1032.5 1029.9 1030.3 1032.5 DAY 7 12 3 7 26 1 4 25 13 18 16 11 MIN. QNH PRESSURE IN HPA 1016.7 1012.9 1006.7 1010.9 1014.1 1009.1 1005.9 1011.9 1013.7 1016.9 1009.2 1019.5 1005.9 DAY 12 24 26 25 8 30 1 3 19 12 26 6 MEAN QFF PRESSURE IN HPA 1025.9 1022.6 1019.3 1014.0 1013.6 1006.1 1000.9 1005.8 1012.1 1020.4 1021.3 1028.3 1015.8 MAX. QFF PRESSURE IN HPA 1035.1 1030.2 1030.0 1022.2 1020.2 1015.5 1005.5 1013.3 1020.4 1035.2 1033.8 1036.2 1036.2 DAY 7 18 6 7 26 1 25 25 22 18 28 11 MIN. QFF PRESSURE IN HPA 1017.4 1012.0 1003.1 1007.1 1005.4 998.0 993.8 1000.1 1004.4 1010.8 1008.0 1022.0 993.8 DAY 12 9 26 6 7 30 1 23 19 12 26 6 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 883.6 881.5 880.7 879.2 880.8 876.3 873.7 876.9 879.8 883.6 882.8 885.1 880.3 MAX. QFE PRESSURE IN HPA 891.6 887.1 888.3 883.6 886.1 882.1 877.0 882.4 885.0 891.8 889.4 889.8 891.8 DAY 7 12 3 7 28 1 28 25 13 25 15 11 MIN. QFE PRESSURE IN HPA 876.4 875.0 868.7 874.5 875.9 871.5 868.7 873.8 874.7 877.1 873.0 880.1 868.7 DAY 1 5 26 25 9 22 1 3 19 12 26 4 MEAN QNH PRESSURE IN HPA 1021.7 1019.5 1018.5 1016.8 1018.6 1013.5 1010.6 1014.2 1017.5 1021.8 1020.8 1023.5 1018.1 MAX. QNH PRESSURE IN HPA 1030.8 1025.7 1027.1 1021.8 1024.6 1020.1 1014.4 1020.4 1023.4 1031.0 1028.3 1028.8 1031.0 DAY 7 12 3 7 28 1 28 25 13 25 15 11 MIN. QNH PRESSURE IN HPA 1013.7 1012.1 1005.0 1011.5 1013.1 1008.2 1005.0 1010.8 1011.8 1014.5 1009.9 1017.8 1005.0 DAY 1 5 26 25 9 22 1 3 19 12 26 4 MEAN QFF PRESSURE IN HPA 1023.2 1020.6 1017.8 1012.9 1012.5 1004.7 999.5 1003.9 1010.2 1018.0 1018.9 1026.0 1014.0 MAX. QFF PRESSURE IN HPA 1034.3 1027.9 1028.3 1020.3 1021.0 1013.9 1003.9 1010.7 1018.9 1031.4 1031.2 1033.1 1034.3 DAY 7 18 3 7 28 1 25 25 22 18 28 11 MIN. QFF PRESSURE IN HPA 1014.4 1009.9 1000.3 1007.7 1004.2 997.3 993.0 999.1 1001.8 1007.7 1008.8 1019.6 993.0 DAY 17 5 26 6 7 30 16 23 19 12 26 4 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 882.6 880.5 879.6 878.1 879.7 875.1 872.2 875.4 878.4 882.5 881.9 884.1 879.2 MAX. QFE PRESSURE IN HPA 891.0 885.8 887.1 881.6 885.3 881.0 875.6 880.0 883.4 890.8 888.9 889.0 891.0 DAY 7 12 3 7 28 1 28 25 22 25 15 10 MIN. QFE PRESSURE IN HPA 876.1 873.4 867.7 874.2 875.0 869.8 866.7 871.8 873.1 875.5 875.5 879.1 866.7 DAY 1 5 26 16 9 30 1 3 19 12 25 4 MEAN QNH PRESSURE IN HPA 1020.7 1018.3 1017.2 1015.6 1017.4 1012.3 1009.0 1012.5 1015.9 1020.6 1019.9 1022.4 1016.8 MAX. QNH PRESSURE IN HPA 1030.1 1024.3 1025.7 1019.5 1023.7 1018.9 1012.8 1017.7 1021.6 1029.9 1027.7 1027.9 1030.1 DAY 7 12 3 7 28 1 28 25 22 25 15 10 MIN. QNH PRESSURE IN HPA 1013.3 1010.3 1003.9 1011.2 1012.1 1006.3 1002.8 1008.5 1010.0 1012.7 1012.7 1016.7 1002.8 DAY 1 5 26 16 9 30 1 3 19 12 25 4 MEAN QFF PRESSURE IN HPA 1022.2 1019.5 1016.5 1011.9 1011.7 1004.1 998.2 1002.6 1008.9 1017.4 1018.3 1024.9 1013.0 MAX. QFF PRESSURE IN HPA 1033.2 1026.1 1026.8 1018.2 1018.8 1013.1 1003.1 1007.9 1017.9 1028.3 1029.7 1031.6 1033.2 DAY 7 26 3 7 26 2 28 25 22 18 28 11 MIN. QFF PRESSURE IN HPA 1013.6 1008.5 999.2 1006.9 1003.7 995.7 991.2 997.6 1000.5 1006.1 1008.6 1018.7 991.2 DAY 17 9 26 5 7 30 1 3 20 12 11 4 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 883.2 881.0 879.9 878.4 879.8 874.9 872.3 875.4 878.5 883.0 882.7 884.7 879.5 MAX. QFE PRESSURE IN HPA 891.6 886.4 887.1 881.7 885.2 881.0 875.4 879.7 883.4 891.7 889.9 889.8 891.7 DAY 7 12 3 7 26 2 28 25 22 17 15 10 MIN. QFE PRESSURE IN HPA 877.6 873.6 869.3 874.0 875.7 869.2 866.7 871.9 873.5 875.7 875.3 879.1 866.7 DAY 1 5 26 24 8 30 1 3 19 12 25 4 MEAN QNH PRESSURE IN HPA 1021.4 1018.8 1017.6 1015.9 1017.5 1012.0 1009.0 1012.6 1016.0 1021.1 1020.7 1023.0 1017.1 MAX. QNH PRESSURE IN HPA 1030.8 1024.9 1025.7 1019.6 1023.6 1018.9 1012.6 1017.4 1021.6 1030.9 1028.9 1028.8 1030.9 DAY 7 12 3 7 26 2 28 25 22 17 15 10 MIN. QNH PRESSURE IN HPA 1015.0 1010.5 1005.7 1011.0 1012.9 1005.6 1002.8 1008.6 1010.4 1012.9 1012.4 1016.7 1002.8 DAY 1 5 26 24 8 30 1 3 19 12 25 4 MEAN QFF PRESSURE IN HPA 1024.4 1021.3 1017.7 1012.5 1012.0 1003.4 998.6 1003.2 1010.1 1019.4 1021.2 1027.1 1014.2 MAX. QFF PRESSURE IN HPA 1034.3 1028.4 1029.0 1019.6 1019.2 1012.7 1002.8 1009.3 1018.6 1031.9 1032.3 1035.0 1035.0 DAY 7 19 5 7 28 1 25 25 22 17 28 11 MIN. QFF PRESSURE IN HPA 1016.4 1009.6 1001.9 1006.6 1004.2 994.9 991.8 997.5 1001.4 1008.0 1010.5 1019.4 991.8 DAY 17 5 26 24 7 30 16 3 19 12 11 4 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 884.0 881.7 880.8 879.3 880.8 876.0 873.7 876.8 879.8 884.0 883.2 885.3 880.4 MAX. QFE PRESSURE IN HPA 891.4 888.0 888.1 882.6 886.3 881.6 876.4 881.3 883.8 892.8 890.6 891.1 892.8 DAY 7 17 5 30 26 1 28 24 12 17 15 10 MIN. QFE PRESSURE IN HPA 877.6 874.1 871.4 874.0 876.8 869.2 868.8 873.6 874.8 876.1 873.7 880.4 868.8 DAY 1 9 26 24 7 30 1 22 19 12 25 4 MEAN QNH PRESSURE IN HPA 1022.2 1019.6 1018.6 1016.9 1018.6 1013.2 1010.7 1014.1 1017.5 1022.2 1021.3 1023.7 1018.2 MAX. QNH PRESSURE IN HPA 1030.6 1026.7 1026.8 1020.7 1024.8 1019.5 1013.7 1019.2 1022.0 1032.1 1029.7 1030.2 1032.1 DAY 7 17 5 30 26 1 28 24 12 17 15 10 MIN. QNH PRESSURE IN HPA 1015.0 1011.1 1008.1 1011.0 1014.1 1005.6 1005.1 1010.5 1011.9 1013.3 1010.6 1018.2 1005.1 DAY 1 9 26 24 7 30 1 22 19 12 25 4 MEAN QFF PRESSURE IN HPA 1024.7 1021.6 1018.3 1013.2 1012.7 1004.4 999.8 1004.3 1010.9 1019.3 1020.5 1027.0 1014.7 MAX. QFF PRESSURE IN HPA 1034.6 1030.6 1030.9 1020.5 1022.2 1013.7 1004.7 1010.4 1019.7 1032.3 1032.2 1035.2 1035.2 DAY 7 17 5 7 28 1 25 25 22 17 27 10 MIN. QFF PRESSURE IN HPA 1016.4 1009.8 1004.9 1006.6 1005.4 992.7 993.1 999.2 1002.3 1006.7 1008.3 1018.8 992.7 DAY 1 5 26 24 6 30 16 3 19 12 11 4 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 883.8 881.4 880.5 878.8 880.6 876.0 874.0 877.0 879.6 883.9 882.9 885.1 880.3 MAX. QFE PRESSURE IN HPA 890.8 886.7 887.5 882.1 886.2 882.1 877.3 881.8 883.8 892.6 890.6 890.9 892.6 DAY 7 17 2 10 26 1 31 24 12 17 15 10 MIN. QFE PRESSURE IN HPA 877.9 874.0 870.3 872.0 875.4 868.6 869.2 873.5 875.2 876.6 869.4 880.5 868.6 DAY 1 8 26 24 8 30 16 22 19 12 25 4 MEAN QNH PRESSURE IN HPA 1022.0 1019.3 1018.3 1016.4 1018.5 1013.2 1011.0 1014.4 1017.3 1022.1 1021.0 1023.4 1018.1 MAX. QNH PRESSURE IN HPA 1029.9 1025.3 1026.2 1020.1 1024.7 1020.1 1014.7 1019.8 1022.0 1031.9 1029.7 1030.0 1031.9 DAY 7 17 2 10 26 1 31 24 12 17 15 10 MIN. QNH PRESSURE IN HPA 1015.4 1011.0 1006.8 1008.7 1012.6 1004.9 1005.6 1010.4 1012.3 1013.9 1005.8 1018.3 1004.9 DAY 1 8 26 24 8 30 16 22 19 12 25 4 MEAN QFF PRESSURE IN HPA 1023.5 1020.5 1017.5 1012.3 1012.3 1004.1 999.8 1004.1 1010.1 1018.4 1019.2 1025.9 1014.0 MAX. QFF PRESSURE IN HPA 1033.7 1028.2 1029.8 1019.3 1021.5 1013.2 1004.8 1009.8 1017.7 1031.8 1032.3 1034.2 1034.2 DAY 7 17 5 7 28 1 31 25 22 17 27 10 MIN. QFF PRESSURE IN HPA 1015.3 1008.6 1003.5 1004.7 1004.4 992.6 992.6 999.1 1002.2 1005.7 1001.5 1017.9 992.6 DAY 17 8 26 24 7 30 16 22 20 12 25 4 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.4 4.0 7.0 14.4 21.3 27.6 29.0 27.0 24.3 13.8 6.3 4.6 15.0 MINIMUN AIR TEMPERATURE (C) -4.8 -1.1 2.3 6.6 10.7 15.7 17.4 14.3 12.8 5.6 -0.9 -1.7 6.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 1 1 1 0 0 0 0 3 DAYS WITH MINIMUM TEMP. <=-4 17 9 0 0 0 0 0 0 0 0 5 10 41 DAYS WITH FREEZING MIN.<= 0 27 19 10 4 0 0 0 0 0 1 18 17 96 TEMPERATURE RECORDS LOWEST(C) -12.0 -9.6 -2.6 -2.5 2.4 9.0 14.8 3.6 5.4 -1.2 -5.8 -10.0 -12.0 DAY 15 4 1 5 3 18 12 31 1 3 19 6 MAXIMUM AIR TEMPERATURE (C) 7.0 9.9 11.9 20.3 26.2 32.5 33.7 33.0 32.5 22.9 14.9 12.8 21.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 7 23 30 25 24 0 0 0 109 DAYS WITH MAXIMUM TEMP. <= 0 1 0 0 0 0 0 0 0 0 0 0 0 1 TEMPERATURE RECORDS HIGHEST(C) 16.0 16.0 21.2 28.0 34.0 38.2 36.2 37.6 38.6 29.5 23.4 19.2 38.6 DAY 6 10 31 23 31 3 8 27 9 14 8 29 DIF. BETWEEN (MAX.-MIN.) (C) 11.8 11.0 9.6 13.7 15.5 16.8 16.3 18.7 19.7 17.3 15.8 14.5 15.1 MEAN DAILY TEMP. (MDT) (C) 1.1 4.4 7.1 13.5 18.4 24.1 25.5 23.7 22.7 14.2 7.0 5.5 13.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 11.4 98.8 140.9 92.7 62.4 0.0 0.0 0.0 406.3 HEATING DEG. DAYS(BASE 18 0C) 525.0 394.1 337.4 141.4 33.3 0.0 0.0 2.0 0.3 121.0 329.8 386.8 2271.1 DEWPOINT (MEAN C) -5.9 -1.3 2.2 4.1 5.6 4.4 4.6 -0.3 3.2 -0.7 -3.1 -4.2 0.7 MIXING RATIO (G/KG) 2.95 4.10 5.25 6.26 6.71 6.30 6.19 4.60 5.73 4.49 3.51 3.32 4.95 VAPOUR PRESSURE (HPA) 4.16 5.77 7.35 8.75 9.38 8.79 8.64 6.44 8.01 6.32 4.98 4.70 6.94 SATURATION DEF. (HPA) 2.68 2.84 3.26 8.99 17.24 29.58 32.39 31.04 24.88 10.73 5.37 4.43 14.45 RELATIVE HUMIDITY (MEAN %) 66 72 75 55 40 26 23 20 31 43 56 57 47 RELATIVE HUMIDITY (MAX. %) 88 92 94 80 64 43 38 37 50 65 80 80 68 RELATIVE HUMIDITY (MIN. %) 39 48 53 35 26 17 15 11 15 23 31 31 29 RELATIVE HUMIDITY (MEAN% 03UTC) 82 85 90 78 63 43 38 37 48 61 77 75 65 RELATIVE HUMIDITY (MEAN% 09UTC) 49 56 62 42 31 19 18 14 19 29 35 38 34 RELATIVE HUMIDITY (MEAN% 15UTC) 58 68 73 51 36 23 18 15 23 35 50 51 42 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 17.9 33.0 98.1 25.2 14.0 0.8 0.0 0.0 0.0 0.9 9.0 1.3 200.2 DAYS WITH PRECIPITATION >=10 0 1 3 1 0 0 0 0 0 0 0 0 5 DAYS WITH PRECIPITATION >= 5 1 2 7 2 0 0 0 0 0 0 1 0 13 DAYS WITH PRECIPITATION >= 1 6 5 15 5 6 0 0 0 0 0 1 0 38 DAYS WITH PRECIPITATION 8 11 21 15 11 2 2 0 1 3 1 3 78 GREATEST DAILY PRECIPITATION 7.5 16.1 18.0 10.0 4.0 0.8 0.0 0.0 0.0 0.6 9.0 0.5 18.0 DAY 20 3 3 4 26 28 ** ** ** 31 12 1 DAY WITH THUNDER STORM 0 1 2 2 1 2 0 0 1 0 0 0 9 DAYS WITH SNOW OR SLEET 5 3 4 3 0 0 0 0 0 0 1 1 17 DAYS WITH DUST 0 0 1 1 0 6 3 5 2 1 0 0 19 WIND DIRECTION (PREVAILING) 360 90 90 90 90 90 360 90 90 270 270 315 90 PREVAILING WIND SPEED(KNOTS) 4.7 7.3 6.1 8.3 8.4 9.0 10.5 9.0 8.7 6.6 6.2 5.8 8.2 PREVAILING WIND PERCENT 1.2 5.1 7.5 13.1 16.8 23.3 11.0 18.1 13.0 6.5 4.6 4.0 7.9 CALMS PERCENT OF WIND 96.4 83.7 80.9 68.1 57.4 45.3 63.2 65.2 77.4 80.4 91.3 90.3 77.6 NO. OF WIND OBSERVATION 248 215 199 160 155 150 155 155 177 245 240 248 2347 VECTOR WIND DIRECTION (MEAN) 315 89 138 99 82 78 345 102 105 211 247 335 80 VECTOR WIND MAGNITUDE(KNOTS) R< 0.1 0.1 0.3 0.5 1.3 2.4 1.5 1.8 0.8 0.2 0.3 0.3 0.5 WIND STEADINESES (MEAN %) 8.2 10.0 23.1 20.0 43.3 54.5 44.1 64.3 44.4 15.4 60.0 50.0 26.3 WIND SPEED (MEAN KNOTS) 0.2 1.0 1.3 2.5 3.0 4.4 3.4 2.8 1.8 1.3 0.5 0.6 1.9 FASTEST WIND DIRECTION 130 70 250 190 110 80 80 100 180 110 240 200 250 FASTEST WIND SPEED (KNOTS) 10 16 19 19 19 19 19 17 16 16 12 10 19 DAY 8 5 5 1 8 9 9 15 9 2 12 11 DAYS WITH SKY CLEAR (0-2)/8 12 8 6 9 13 25 29 31 29 21 21 16 220 DAYS WITH P.CLOUDY (3-6)/8 11 10 11 12 15 5 2 0 0 10 8 11 95 DAYS WITH CLOUDY (7-8)/8 8 11 14 9 3 0 0 0 1 0 1 4 51 DAYS WITH VISIBILITY =< 2 KM 4 4 4 1 1 0 0 0 0 0 1 0 15 DURATION OF SUNSHINE HOURS 190.6 142.0 167.8 213.6 270.6 351.8 386.0 365.8 309.8 269.1 251.1 197.9 3116.1 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 884.2 880.6 879.0 880.1 880.3 877.0 877.5 878.2 878.3 883.2 886.8 885.1 880.9 MAX. QFE PRESSURE IN HPA 893.6 887.2 884.2 887.6 885.3 881.9 884.6 886.9 887.0 893.5 897.2 892.6 897.2 DAY-HOUR 10- 6 13- 6 22- 6 5- 6 4- 6 12- 3 4- 3 30- 6 25- 6 2- 6 18-18 8- 6 MIN. QFE PRESSURE IN HPA 875.8 869.0 871.2 870.8 875.6 870.0 872.4 871.8 871.4 873.6 879.7 878.2 869.0 DAY-HOUR 7- 0 5-15 26- 9 10- 9 29-15 6-12 6-12 8-12 22-12 27-12 29-12 25- 0 MEAN QNH PRESSURE IN HPA 1022.5 1018.4 1016.6 1017.9 1018.1 1014.4 1014.9 1015.7 1015.9 1021.4 1025.3 1023.5 1018.7 MAX. QNH PRESSURE IN HPA 1033.0 1025.8 1022.5 1026.3 1023.7 1019.9 1022.9 1025.5 1025.6 1032.9 1037.1 1031.9 1037.1 DAY-HOUR 10- 6 13- 6 22- 6 5- 6 4- 6 12- 3 4- 3 30- 6 25- 6 2- 6 18-18 8- 6 MIN. QNH PRESSURE IN HPA 1013.0 1005.4 1007.8 1007.4 1012.8 1006.5 1009.2 1008.5 1008.1 1010.5 1017.4 1015.7 1005.4 DAY-HOUR 7- 0 5-15 26- 9 10- 9 29-15 6-12 6-12 8-12 22-12 27-12 29-12 25- 0 MEAN QFF PRESSURE IN HPA 1026.2 1020.0 1016.8 ****** ****** ****** ****** ****** ****** 1017.9 1026.0 1024.9 ****** MAX. QFF PRESSURE IN HPA 1039.4 1029.3 1024.7 ****** ****** ****** ****** ****** ****** 1031.1 1041.4 1038.9 ****** DAY-HOUR 10-18 3-18 21- 6 **-** **-** **-** **-** **-** **-** 3- 3 18-18 8- 3 MIN. QFF PRESSURE IN HPA 1010.2 1005.9 1003.5 ****** ****** ****** ****** ****** ****** 1004.3 1015.8 1013.8 ****** DAY-HOUR 7- 0 11- 0 26-12 **-** **-** **-** **-** **-** **-** 31- 0 10- 0 30- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 884.1 880.3 ****** ****** ****** ****** ****** ****** ****** 883.1 886.5 884.9 ****** MAX. QFE PRESSURE IN HPA 891.6 885.1 ****** ****** ****** ****** ****** ****** ****** 890.8 896.4 891.2 ****** DAY 10 24 ** ** ** ** ** ** ** 3 19 8 MIN. QFE PRESSURE IN HPA 875.8 872.7 ****** ****** ****** ****** ****** ****** ****** 874.5 880.6 878.2 ****** DAY 7 11 ** ** ** ** ** ** ** 31 29 25 MEAN QNH PRESSURE IN HPA 1022.3 1018.1 ****** ****** ****** ****** ****** ****** ****** 1021.2 1025.1 1023.2 ****** MAX. QNH PRESSURE IN HPA 1030.8 1023.5 ****** ****** ****** ****** ****** ****** ****** 1029.9 1036.2 1030.3 ****** DAY 10 24 ** ** ** ** ** ** ** 3 19 8 MIN. QNH PRESSURE IN HPA 1013.0 1009.5 ****** ****** ****** ****** ****** ****** ****** 1011.5 1018.4 1015.7 ****** DAY 7 11 ** ** ** ** ** ** ** 31 29 25 MEAN QFF PRESSURE IN HPA 1025.4 1019.3 ****** ****** ****** ****** ****** ****** ****** 1017.1 1025.0 1024.0 ****** MAX. QFF PRESSURE IN HPA 1037.4 1028.8 ****** ****** ****** ****** ****** ****** ****** 1028.5 1040.0 1034.2 ****** DAY 11 4 ** ** ** ** ** ** ** 3 19 8 MIN. QFF PRESSURE IN HPA 1010.2 1005.9 ****** ****** ****** ****** ****** ****** ****** 1004.3 1015.8 1013.8 ****** DAY 7 11 ** ** ** ** ** ** ** 31 10 30 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 884.3 880.6 879.1 880.5 880.9 878.2 878.7 879.2 878.6 883.6 887.0 885.2 881.3 MAX. QFE PRESSURE IN HPA 892.2 885.5 883.3 887.0 884.8 881.9 884.6 886.5 886.1 892.0 895.9 892.1 895.9 DAY 10 24 12 5 4 12 4 30 25 2 19 8 MIN. QFE PRESSURE IN HPA 877.8 873.2 872.4 874.6 877.6 872.5 875.5 874.4 873.3 876.3 880.2 878.6 872.4 DAY 7 11 26 11 30 6 6 8 9 31 29 25 MEAN QNH PRESSURE IN HPA 1022.5 1018.4 1016.8 1018.2 1018.7 1015.8 1016.2 1016.8 1016.2 1021.8 1025.6 1023.6 1019.2 MAX. QNH PRESSURE IN HPA 1031.5 1023.9 1021.4 1025.6 1023.1 1019.9 1022.9 1025.0 1024.6 1031.2 1035.6 1031.3 1035.6 DAY 10 24 12 5 4 12 4 30 25 2 19 8 MIN. QNH PRESSURE IN HPA 1015.3 1010.1 1009.2 1011.7 1015.0 1009.3 1012.7 1011.4 1010.2 1013.6 1018.0 1016.2 1009.2 DAY 7 11 26 11 30 6 6 8 9 31 29 25 MEAN QFF PRESSURE IN HPA 1027.3 1020.6 1017.5 1015.5 1012.9 1007.0 1006.6 1008.7 1009.2 1019.3 1027.7 1026.4 1016.6 MAX. QFF PRESSURE IN HPA 1037.9 1028.9 1023.7 1028.7 1020.1 1012.5 1013.5 1020.5 1020.7 1031.1 1041.0 1038.9 1041.0 DAY 11 4 22 5 3 13 4 31 25 3 19 8 MIN. QFF PRESSURE IN HPA 1013.7 1007.7 1005.7 1007.6 1007.5 999.2 1002.7 1002.6 1000.8 1008.6 1020.0 1016.5 999.2 DAY 7 11 26 25 30 6 6 8 9 31 29 25 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 885.4 881.5 880.0 881.1 881.3 878.3 878.7 879.6 879.5 884.5 888.0 886.3 882.0 MAX. QFE PRESSURE IN HPA 893.6 887.2 884.2 887.6 885.3 881.8 884.3 886.9 887.0 893.5 897.2 892.6 897.2 DAY 10 13 22 5 4 12 3 30 25 2 19 8 MIN. QFE PRESSURE IN HPA 879.7 872.5 872.2 873.5 878.0 872.3 875.2 874.5 873.2 876.3 881.1 879.4 872.2 DAY 7 5 26 10 19 6 6 8 9 27 29 25 MEAN QNH PRESSURE IN HPA 1023.8 1019.4 1017.7 1018.9 1019.2 1015.8 1016.2 1017.3 1017.1 1022.8 1026.8 1024.8 1020.0 MAX. QNH PRESSURE IN HPA 1033.0 1025.8 1022.5 1026.3 1023.7 1019.8 1022.6 1025.5 1025.6 1032.9 1037.1 1031.9 1037.1 DAY 10 13 22 5 4 12 3 30 25 2 19 8 MIN. QNH PRESSURE IN HPA 1017.4 1009.3 1009.0 1010.4 1015.5 1009.1 1012.3 1011.5 1010.1 1013.6 1019.0 1017.1 1009.0 DAY 7 5 26 10 19 6 6 8 9 27 29 25 MEAN QFF PRESSURE IN HPA 1027.8 1021.2 ****** ****** ****** ****** ****** ****** ****** 1019.4 1027.5 1026.6 ****** MAX. QFF PRESSURE IN HPA 1039.4 1029.2 ****** ****** ****** ****** ****** ****** ****** 1030.0 1040.8 1037.6 ****** DAY 10 4 ** ** ** ** ** ** ** 2 19 8 MIN. QFF PRESSURE IN HPA 1015.9 1008.3 ****** ****** ****** ****** ****** ****** ****** 1008.6 1018.8 1017.1 ****** DAY 7 11 ** ** ** ** ** ** ** 27 3 25 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 884.3 880.6 879.1 880.3 880.5 877.1 877.5 878.3 878.2 883.1 886.7 885.0 880.9 MAX. QFE PRESSURE IN HPA 892.9 886.2 883.2 886.6 885.0 880.0 883.9 885.7 885.1 891.6 895.3 891.2 895.3 DAY 10 13 22 4 4 13 3 30 25 2 18 8 MIN. QFE PRESSURE IN HPA 878.9 870.0 871.2 870.8 877.1 871.2 873.8 873.2 872.5 874.7 880.2 879.6 870.0 DAY 7 5 26 10 29 6 6 8 9 27 29 25 MEAN QNH PRESSURE IN HPA 1022.6 1018.4 1016.8 1018.1 1018.3 1014.5 1014.9 1015.9 1015.7 1021.2 1025.3 1023.4 1018.8 MAX. QNH PRESSURE IN HPA 1032.2 1024.7 1021.3 1025.2 1023.4 1017.7 1022.1 1024.1 1023.5 1030.8 1034.9 1030.3 1034.9 DAY 10 13 22 4 4 13 3 30 25 2 18 8 MIN. QNH PRESSURE IN HPA 1016.5 1006.5 1007.8 1007.4 1014.5 1007.8 1010.8 1010.1 1009.3 1011.8 1018.0 1017.3 1006.5 DAY 7 5 26 10 29 6 6 8 9 27 29 25 MEAN QFF PRESSURE IN HPA 1025.8 1019.8 ****** ****** ****** ****** ****** ****** ****** 1017.2 1025.1 1024.1 ****** MAX. QFF PRESSURE IN HPA 1038.3 1027.6 ****** ****** ****** ****** ****** ****** ****** 1027.5 1038.1 1034.0 ****** DAY 10 4 ** ** ** ** ** ** ** 2 18 7 MIN. QFF PRESSURE IN HPA 1015.0 1006.8 ****** ****** ****** ****** ****** ****** ****** 1006.4 1017.0 1016.6 ****** DAY 7 11 ** ** ** ** ** ** ** 27 3 25 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 883.4 879.7 878.1 879.3 879.5 875.9 876.3 877.0 876.7 882.1 885.8 884.2 879.8 MAX. QFE PRESSURE IN HPA 891.4 885.3 881.5 885.8 883.6 878.8 882.7 884.0 883.7 890.0 894.6 890.0 894.6 DAY 10 13 22 4 7 13 3 30 25 2 18 7 MIN. QFE PRESSURE IN HPA 878.0 869.4 871.3 871.3 876.0 870.0 872.4 871.8 871.4 873.6 879.7 878.5 869.4 DAY 19 5 26 10 29 6 6 8 22 27 29 15 MEAN QNH PRESSURE IN HPA 1021.5 1017.4 1015.6 1016.9 1017.1 1013.1 1013.6 1014.3 1014.1 1020.1 1024.3 1022.5 1017.5 MAX. QNH PRESSURE IN HPA 1030.6 1023.7 1019.4 1024.3 1021.8 1016.4 1020.8 1022.2 1021.9 1029.0 1034.2 1029.0 1034.2 DAY 10 13 22 4 7 13 3 30 25 2 18 7 MIN. QNH PRESSURE IN HPA 1015.5 1005.8 1007.9 1007.9 1013.2 1006.5 1009.2 1008.5 1008.1 1010.5 1017.4 1016.0 1005.8 DAY 19 5 26 10 29 6 6 8 22 27 29 15 MEAN QFF PRESSURE IN HPA 1024.7 1018.8 ****** ****** ****** ****** ****** ****** ****** 1016.1 1024.3 1023.2 ****** MAX. QFF PRESSURE IN HPA 1036.6 1026.4 ****** ****** ****** ****** ****** ****** ****** 1026.0 1037.5 1032.9 ****** DAY 10 13 ** ** ** ** ** ** ** 19 18 7 MIN. QFF PRESSURE IN HPA 1014.5 1007.3 ****** ****** ****** ****** ****** ****** ****** 1005.5 1016.1 1016.5 ****** DAY 7 11 ** ** ** ** ** ** ** 27 3 25 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 883.9 880.3 878.4 879.4 879.6 875.8 876.3 877.0 876.7 882.6 886.3 884.8 880.1 MAX. QFE PRESSURE IN HPA 891.6 885.5 881.5 886.2 883.2 879.0 882.4 884.0 883.3 890.5 896.0 890.3 896.0 DAY 10 13 12 4 7 11 3 29 25 2 18 3 MIN. QFE PRESSURE IN HPA 878.0 869.0 872.3 872.2 875.6 870.4 872.5 872.5 871.7 874.3 880.8 878.6 869.0 DAY 19 5 26 10 29 6 6 8 22 27 28 15 MEAN QNH PRESSURE IN HPA 1022.1 1018.1 1015.9 1017.1 1017.2 1013.0 1013.6 1014.4 1014.0 1020.7 1024.9 1023.1 1017.8 MAX. QNH PRESSURE IN HPA 1030.8 1023.9 1019.4 1024.7 1021.3 1016.6 1020.4 1022.2 1021.4 1029.5 1035.7 1029.3 1035.7 DAY 10 13 12 4 7 11 3 29 25 2 18 3 MIN. QNH PRESSURE IN HPA 1015.5 1005.4 1009.1 1009.0 1012.8 1006.9 1009.3 1009.3 1008.4 1011.3 1018.6 1016.2 1005.4 DAY 19 5 26 10 29 6 6 8 22 27 28 15 MEAN QFF PRESSURE IN HPA 1026.8 1020.3 1016.4 1014.3 1011.4 1004.2 1004.1 1006.4 1006.9 1018.3 1026.9 1025.9 1015.1 MAX. QFF PRESSURE IN HPA 1038.0 1027.8 1022.6 1027.2 1017.9 1008.8 1010.4 1017.8 1016.3 1028.9 1040.8 1037.1 1040.8 DAY 10 3 20 4 4 16 3 30 24 2 18 7 MIN. QFF PRESSURE IN HPA 1015.8 1007.3 1005.9 1005.9 1005.7 997.2 999.4 1000.7 999.7 1008.5 1019.5 1017.2 997.2 DAY 6 5 26 25 25 5 6 8 9 27 3 15 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 884.5 880.9 879.4 ****** ****** ****** ****** ****** ****** 883.5 886.9 885.4 ****** MAX. QFE PRESSURE IN HPA 892.3 885.7 882.3 ****** ****** ****** ****** ****** ****** 891.5 897.2 891.4 ****** DAY 10 13 21 ** ** ** ** ** ** 2 18 7 MIN. QFE PRESSURE IN HPA 877.4 871.0 873.2 ****** ****** ****** ****** ****** ****** 875.4 881.0 878.6 ****** DAY 6 5 26 ** ** ** ** ** ** 27 28 15 MEAN QNH PRESSURE IN HPA 1022.7 1018.7 1017.1 ****** ****** ****** ****** ****** ****** 1021.7 1025.5 1023.8 ****** MAX. QNH PRESSURE IN HPA 1031.6 1024.1 1020.3 ****** ****** ****** ****** ****** ****** 1030.7 1037.1 1030.6 ****** DAY 10 13 21 ** ** ** ** ** ** 2 18 7 MIN. QNH PRESSURE IN HPA 1014.8 1007.6 1010.1 ****** ****** ****** ****** ****** ****** 1012.6 1018.9 1016.2 ****** DAY 6 5 26 ** ** ** ** ** ** 27 28 15 MEAN QFF PRESSURE IN HPA 1026.8 1020.4 1017.5 ****** ****** ****** ****** ****** ****** 1018.3 1026.2 1025.5 ****** MAX. QFF PRESSURE IN HPA 1039.4 1029.3 1024.1 ****** ****** ****** ****** ****** ****** 1029.4 1041.4 1036.8 ****** DAY 10 3 20 ** ** ** ** ** ** 2 18 7 MIN. QFF PRESSURE IN HPA 1013.7 1007.7 1006.0 ****** ****** ****** ****** ****** ****** 1006.2 1018.6 1017.3 ****** DAY 6 10 26 ** ** ** ** ** ** 14 9 15 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 884.2 880.7 879.3 ****** ****** ****** ****** ****** ****** 883.4 886.8 885.0 ****** MAX. QFE PRESSURE IN HPA 891.4 885.7 882.4 ****** ****** ****** ****** ****** ****** 891.4 896.4 891.4 ****** DAY 9 13 21 ** ** ** ** ** ** 2 18 7 MIN. QFE PRESSURE IN HPA 876.0 871.2 874.3 ****** ****** ****** ****** ****** ****** 875.4 880.6 878.3 ****** DAY 6 5 26 ** ** ** ** ** ** 27 28 15 MEAN QNH PRESSURE IN HPA 1022.4 1018.5 1016.9 ****** ****** ****** ****** ****** ****** 1021.6 1025.4 1023.4 ****** MAX. QNH PRESSURE IN HPA 1030.6 1024.1 1020.4 ****** ****** ****** ****** ****** ****** 1030.6 1036.2 1030.6 ****** DAY 9 13 21 ** ** ** ** ** ** 2 18 7 MIN. QNH PRESSURE IN HPA 1013.2 1007.8 1011.3 ****** ****** ****** ****** ****** ****** 1012.6 1018.4 1015.8 ****** DAY 6 5 26 ** ** ** ** ** ** 27 28 15 MEAN QFF PRESSURE IN HPA 1025.6 1019.7 1016.5 ****** ****** ****** ****** ****** ****** 1017.6 1025.2 1024.1 ****** MAX. QFF PRESSURE IN HPA 1038.5 1029.0 1023.6 ****** ****** ****** ****** ****** ****** 1029.2 1039.7 1034.7 ****** DAY 10 3 20 ** ** ** ** ** ** 2 18 7 MIN. QFF PRESSURE IN HPA 1010.5 1007.3 1007.6 ****** ****** ****** ****** ****** ****** 1006.6 1017.3 1014.6 ****** DAY 6 10 26 ** ** ** ** ** ** 27 9 29 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.9 2.6 6.3 13.9 18.4 25.0 28.0 25.6 21.2 16.4 7.4 3.8 14.3 MINIMUN AIR TEMPERATURE (C) -2.4 -4.3 0.4 7.3 10.2 15.9 17.6 15.3 11.2 8.6 2.1 -0.5 6.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 2 0 0 0 0 0 2 DAYS WITH MINIMUM TEMP. <=-4 10 16 4 0 0 0 0 0 0 0 1 3 34 DAYS WITH FREEZING MIN.<= 0 25 24 16 1 0 0 0 0 0 0 8 20 94 TEMPERATURE RECORDS LOWEST(C) -5.6 -10.2 -6.4 -0.4 4.6 10.6 13.4 7.4 6.4 2.0 -5.6 -8.0 -10.2 DAY 25 2 9 13 7 3 1 27 10 21 26 19 MAXIMUM AIR TEMPERATURE (C) 9.8 10.7 13.1 20.9 25.7 32.8 36.1 35.0 30.5 24.9 14.1 8.8 21.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 8 26 31 30 18 5 0 0 118 DAYS WITH MAXIMUM TEMP. <= 0 0 1 0 0 0 0 0 0 0 0 0 1 2 TEMPERATURE RECORDS HIGHEST(C) 17.2 21.0 23.2 27.6 34.0 37.2 39.2 39.8 37.8 32.0 22.0 17.2 39.8 DAY 2 22 24 28 28 16 18 15 1 3 5 10 DIF. BETWEEN (MAX.-MIN.) (C) 12.2 15.0 12.7 13.6 15.5 16.9 18.5 19.7 19.3 16.3 12.0 9.3 15.1 MEAN DAILY TEMP. (MDT) (C) 3.7 3.2 6.7 14.1 17.9 24.4 26.9 25.1 20.8 16.8 8.1 4.1 14.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 14.5 101.6 182.3 134.0 35.9 4.6 0.0 0.0 472.9 HEATING DEG. DAYS(BASE 18 0C) 444.3 413.5 349.2 118.7 48.4 0.0 0.0 0.0 6.5 67.2 297.0 429.6 2174.4 DEWPOINT (MEAN C) -4.0 -6.9 -1.0 4.0 5.7 9.0 10.4 2.8 -0.5 3.5 1.6 -0.1 2.0 MIXING RATIO (G/KG) 3.29 2.78 4.21 6.15 6.71 8.58 9.59 5.81 4.38 5.82 5.09 4.36 5.57 VAPOUR PRESSURE (HPA) 4.64 3.92 5.89 8.59 9.40 11.92 13.26 8.11 6.16 8.18 7.18 6.14 7.78 SATURATION DEF. (HPA) 3.29 4.20 4.37 8.28 13.14 21.31 26.47 26.97 21.09 11.83 3.71 2.16 12.24 RELATIVE HUMIDITY (MEAN %) 64 55 65 56 49 41 36 26 27 48 71 78 51 RELATIVE HUMIDITY (MAX. %) 85 82 88 83 76 67 53 43 46 69 91 93 73 RELATIVE HUMIDITY (MIN. %) 39 27 38 30 24 21 23 12 13 27 45 55 30 RELATIVE HUMIDITY (MEAN% 03UTC) 80 78 81 77 68 58 47 41 43 66 88 89 68 RELATIVE HUMIDITY (MEAN% 09UTC) 47 35 46 36 29 23 26 17 16 31 51 62 35 RELATIVE HUMIDITY (MEAN% 15UTC) 61 40 59 45 36 31 29 15 18 43 69 77 44 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 22.0 3.4 78.8 43.0 32.7 11.1 0.0 0.0 0.0 16.3 22.2 31.6 261.1 DAYS WITH PRECIPITATION >=10 1 0 2 1 1 0 0 0 0 0 1 1 7 DAYS WITH PRECIPITATION >= 5 2 0 7 1 3 1 0 0 0 1 1 3 19 DAYS WITH PRECIPITATION >= 1 4 1 11 7 5 3 0 0 0 3 3 5 42 DAYS WITH PRECIPITATION 6 6 15 10 7 11 0 0 0 5 6 9 75 GREATEST DAILY PRECIPITATION 10.0 2.1 18.0 27.0 11.0 5.3 0.0 0.0 0.0 9.0 16.1 11.0 27.0 DAY 17 28 27 20 6 19 ** ** ** 24 1 21 DAY WITH THUNDER STORM 0 0 3 4 2 6 0 0 1 1 0 0 17 DAYS WITH SNOW OR SLEET 4 2 5 0 0 0 0 0 0 0 0 3 14 DAYS WITH DUST 0 0 4 2 1 1 1 1 5 2 0 0 17 WIND DIRECTION (PREVAILING) 270 225 90 90 45 90 90 90 90 270 270 270 90 PREVAILING WIND SPEED(KNOTS) 6.0 7.9 7.2 7.3 7.1 7.5 10.1 7.8 8.9 6.1 5.0 6.3 8.1 PREVAILING WIND PERCENT 4.8 8.9 11.7 9.2 6.5 9.2 16.9 14.1 15.0 6.9 4.2 3.3 8.0 CALMS PERCENT OF WIND 82.7 69.2 64.9 68.8 67.7 65.0 63.7 67.3 65.4 78.6 89.2 88.9 72.6 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 243 2915 VECTOR WIND DIRECTION (MEAN) 277 216 194 171 30 8 79 92 72 265 225 292 91 VECTOR WIND MAGNITUDE(KNOTS) 0.2 0.9 0.3 0.6 0.3 0.8 1.8 0.8 0.8 0.3 0.2 0.2 0.2 WIND STEADINESES (MEAN %) 18.2 36.0 11.1 25.0 14.3 27.6 58.1 36.4 33.3 25.0 33.3 33.3 10.0 WIND SPEED (MEAN KNOTS) 1.1 2.5 2.7 2.4 2.1 2.9 3.1 2.2 2.4 1.2 0.6 0.6 2.0 FASTEST WIND DIRECTION 240 210 250 210 350 240 100 10 70 350 270 250 250 FASTEST WIND SPEED (KNOTS) 16 19 29 19 21 29 17 17 17 19 10 14 29 DAY 28 23 8 5 30 4 21 18 13 15 1 11 DAYS WITH SKY CLEAR (0-2)/8 15 15 6 10 15 14 30 31 29 21 7 8 201 DAYS WITH P.CLOUDY (3-6)/8 13 12 15 15 12 16 1 0 1 7 16 15 123 DAYS WITH CLOUDY (7-8)/8 3 1 10 5 4 0 0 0 0 3 7 8 41 DAYS WITH VISIBILITY =< 2 KM 1 0 3 0 0 1 0 0 0 0 2 6 13 DURATION OF SUNSHINE HOURS 191.8 238.4 186.4 241.1 300.5 311.2 386.4 375.4 315.2 262.7 194.0 139.8 3142.9 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 881.3 881.4 877.7 878.2 880.5 876.5 874.5 877.3 880.8 882.6 884.8 882.6 879.9 MAX. QFE PRESSURE IN HPA 890.1 888.5 892.1 885.6 887.4 882.5 878.8 882.6 887.7 888.8 895.6 891.8 895.6 DAY-HOUR 24- 6 7-18 11- 6 20-18 12- 6 4-18 9- 6 24- 6 7- 6 9- 6 8- 6 29- 6 MIN. QFE PRESSURE IN HPA 869.9 869.2 868.9 868.7 870.0 871.0 868.7 872.0 872.3 878.6 880.1 873.4 868.7 DAY-HOUR 31-21 1- 0 30- 0 10- 0 5- 0 23-15 16-12 14-12 2-15 1-12 20-12 10-12 MEAN QNH PRESSURE IN HPA 1019.2 1019.3 1015.2 1015.7 1018.2 1013.8 1011.6 1014.7 1018.6 1020.7 1023.2 1020.7 1017.6 MAX. QNH PRESSURE IN HPA 1029.1 1027.3 1031.3 1024.0 1026.1 1020.5 1016.4 1020.7 1026.4 1027.6 1035.3 1031.0 1035.3 DAY-HOUR 24- 6 7-18 11- 6 20-18 12- 6 4-18 9- 6 24- 6 7- 6 9- 6 8- 6 29- 6 MIN. QNH PRESSURE IN HPA 1006.4 1005.6 1005.2 1005.0 1006.5 1007.6 1005.0 1008.7 1009.1 1016.2 1017.8 1010.3 1005.0 DAY-HOUR 31-21 1- 0 30- 0 10- 0 5- 0 23-15 16-12 14-12 2-15 1-12 20-12 10-12 MEAN QFF PRESSURE IN HPA 1021.5 1021.8 1015.5 1012.0 1012.4 1004.5 1000.9 1005.3 1011.6 1015.8 1023.0 1022.3 1013.9 MAX. QFF PRESSURE IN HPA 1033.0 1034.3 1034.7 1024.1 1023.1 1013.0 1007.0 1013.0 1022.0 1024.4 1037.9 1035.9 1037.9 DAY-HOUR 24- 3 8- 3 11- 6 14- 6 6-21 4-18 9- 6 28- 3 7- 6 9- 3 8- 6 28-18 MIN. QFF PRESSURE IN HPA 1008.0 1005.8 1001.2 999.4 997.6 998.1 992.7 998.9 999.6 1007.8 1013.6 1007.5 992.7 DAY-HOUR 31-21 22-21 25- 9 10- 0 5- 0 23-15 16-12 13-12 2-15 3-12 5-12 10-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 881.3 880.9 877.2 877.9 880.2 876.6 874.6 877.3 880.8 882.5 884.6 882.4 879.7 MAX. QFE PRESSURE IN HPA 889.4 888.3 889.5 883.3 885.8 880.9 878.1 880.5 885.6 888.0 894.4 891.1 894.4 DAY 24 8 11 24 12 8 9 9 8 9 8 29 MIN. QFE PRESSURE IN HPA 872.4 869.2 868.9 868.7 870.0 872.2 871.0 873.3 873.7 879.2 880.3 874.4 868.7 DAY 18 1 30 10 5 24 16 5 3 1 13 10 MEAN QNH PRESSURE IN HPA 1019.2 1018.7 1014.5 1015.4 1018.0 1013.9 1011.6 1014.7 1018.6 1020.6 1022.9 1020.5 1017.4 MAX. QNH PRESSURE IN HPA 1028.3 1027.1 1028.4 1021.4 1024.3 1018.7 1015.6 1018.3 1024.0 1026.7 1033.9 1030.2 1033.9 DAY 24 8 11 24 12 8 9 9 8 9 8 29 MIN. QNH PRESSURE IN HPA 1009.2 1005.6 1005.2 1005.0 1006.5 1009.0 1007.6 1010.2 1010.6 1016.8 1018.1 1011.4 1005.0 DAY 18 1 30 10 5 24 16 5 3 1 13 10 MEAN QFF PRESSURE IN HPA 1020.9 1020.7 1014.6 1011.6 1012.2 1004.7 1001.1 1005.2 1011.3 1015.3 1022.2 1021.8 1013.5 MAX. QFF PRESSURE IN HPA 1030.8 1033.6 1030.5 1021.2 1022.3 1010.1 1005.7 1011.9 1018.7 1022.8 1034.9 1034.9 1034.9 DAY 24 8 11 13 7 8 9 28 8 9 8 29 MIN. QFF PRESSURE IN HPA 1009.9 1006.1 1001.4 999.4 997.6 998.8 995.9 1000.7 1000.5 1008.2 1014.8 1010.0 995.9 DAY 17 1 30 10 5 24 16 6 3 7 13 10 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 881.5 881.3 877.9 878.5 881.1 877.2 875.5 878.2 881.7 883.0 885.0 882.7 880.3 MAX. QFE PRESSURE IN HPA 889.6 888.3 891.2 883.8 887.0 881.9 878.4 882.0 886.8 888.2 895.0 891.0 895.0 DAY 24 8 11 23 12 8 20 24 8 9 8 29 MIN. QFE PRESSURE IN HPA 872.9 871.7 869.6 869.0 870.0 873.3 870.8 874.0 874.7 879.6 880.5 874.7 869.0 DAY 17 1 8 10 5 24 16 5 3 24 13 10 MEAN QNH PRESSURE IN HPA 1019.4 1019.2 1015.4 1016.1 1018.9 1014.6 1012.7 1015.7 1019.6 1021.2 1023.4 1020.8 1018.1 MAX. QNH PRESSURE IN HPA 1028.5 1027.1 1030.3 1022.0 1025.6 1019.9 1015.9 1020.0 1025.4 1027.0 1034.6 1030.1 1034.6 DAY 24 8 11 23 12 8 20 24 8 9 8 29 MIN. QNH PRESSURE IN HPA 1009.7 1008.4 1006.0 1005.4 1006.5 1010.2 1007.4 1011.0 1011.8 1017.3 1018.3 1011.8 1005.4 DAY 17 1 8 10 5 24 16 5 3 24 13 10 MEAN QFF PRESSURE IN HPA 1022.6 1022.6 1016.3 1012.9 1013.2 1005.7 1002.3 1006.7 1013.5 1017.4 1024.2 1023.2 1015.0 MAX. QFF PRESSURE IN HPA 1033.0 1034.3 1034.6 1022.5 1022.3 1011.5 1006.7 1013.0 1021.2 1024.4 1036.8 1035.8 1036.8 DAY 24 8 11 13 7 8 9 28 8 9 8 29 MIN. QFF PRESSURE IN HPA 1009.7 1008.6 1003.0 1000.0 998.6 1001.4 995.9 1001.3 1002.5 1010.8 1016.5 1012.0 995.9 DAY 17 23 30 10 5 24 16 14 3 7 13 11 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 882.6 882.5 878.8 879.5 881.4 877.4 875.9 878.7 882.3 883.8 886.0 883.8 881.1 MAX. QFE PRESSURE IN HPA 890.1 888.1 892.1 885.3 887.4 882.1 878.8 882.6 887.7 888.8 895.6 891.8 895.6 DAY 24 25 11 14 12 8 9 24 7 9 8 29 MIN. QFE PRESSURE IN HPA 873.5 875.5 871.8 871.0 871.1 873.4 871.2 874.3 875.6 880.7 881.6 875.9 871.0 DAY 17 1 30 10 5 24 16 14 3 23 13 10 MEAN QNH PRESSURE IN HPA 1020.6 1020.5 1016.4 1017.2 1019.3 1014.8 1013.1 1016.2 1020.3 1022.0 1024.5 1022.0 1018.9 MAX. QNH PRESSURE IN HPA 1029.1 1026.8 1031.3 1023.7 1026.1 1020.1 1016.4 1020.7 1026.4 1027.6 1035.3 1031.0 1035.3 DAY 24 25 11 14 12 8 9 24 7 9 8 29 MIN. QNH PRESSURE IN HPA 1010.4 1012.7 1008.5 1007.6 1007.7 1010.3 1007.8 1011.3 1012.8 1018.5 1019.5 1013.1 1007.6 DAY 17 1 30 10 5 24 16 14 3 23 13 10 MEAN QFF PRESSURE IN HPA 1023.1 1023.3 1016.8 1013.6 1013.5 1005.5 1002.5 1006.8 1013.3 1017.1 1024.4 1023.6 1015.3 MAX. QFF PRESSURE IN HPA 1032.6 1032.1 1034.7 1024.1 1022.9 1011.5 1007.0 1012.5 1022.0 1023.6 1037.9 1035.7 1037.9 DAY 24 8 11 14 7 8 9 25 7 9 8 29 MIN. QFF PRESSURE IN HPA 1011.0 1011.0 1004.6 1002.5 1000.9 1000.4 996.1 1001.7 1003.0 1010.9 1015.6 1012.3 996.1 DAY 17 23 25 10 5 24 16 14 3 3 5 10 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 881.3 881.4 877.9 878.4 880.7 876.5 874.6 877.4 881.0 882.4 884.8 882.5 879.9 MAX. QFE PRESSURE IN HPA 889.3 887.4 890.9 883.8 886.6 880.7 877.5 881.3 886.4 887.6 894.0 889.6 894.0 DAY 19 17 11 14 12 8 9 28 7 9 8 29 MIN. QFE PRESSURE IN HPA 872.4 874.9 870.2 870.2 872.7 872.2 869.7 873.0 874.4 879.3 880.9 873.8 869.7 DAY 17 23 25 10 5 24 16 14 2 23 5 10 MEAN QNH PRESSURE IN HPA 1019.2 1019.3 1015.4 1015.9 1018.5 1013.8 1011.6 1014.8 1018.8 1020.4 1023.1 1020.6 1017.6 MAX. QNH PRESSURE IN HPA 1028.2 1026.1 1030.0 1022.0 1025.2 1018.5 1014.9 1019.2 1024.9 1026.3 1033.5 1028.5 1033.5 DAY 19 17 11 14 12 8 9 28 7 9 8 29 MIN. QNH PRESSURE IN HPA 1009.2 1012.0 1006.7 1006.7 1009.5 1009.0 1006.1 1009.9 1011.4 1016.9 1018.7 1010.8 1006.1 DAY 17 23 25 10 5 24 16 14 2 23 5 10 MEAN QFF PRESSURE IN HPA 1020.8 1021.2 1015.3 1011.8 1012.4 1004.2 1000.5 1005.1 1011.1 1014.9 1022.3 1021.4 1013.4 MAX. QFF PRESSURE IN HPA 1032.0 1030.0 1031.9 1021.4 1022.1 1009.5 1005.2 1012.0 1019.5 1021.6 1035.1 1032.6 1035.1 DAY 19 8 11 14 7 8 9 28 7 9 8 29 MIN. QFF PRESSURE IN HPA 1009.7 1008.0 1001.2 1001.3 1003.4 998.7 993.8 999.1 1000.7 1008.9 1014.1 1008.1 993.8 DAY 17 23 25 10 5 24 16 14 2 3 5 10 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 880.4 880.3 876.8 877.3 879.6 875.3 873.3 876.0 879.5 881.4 883.9 882.0 878.8 MAX. QFE PRESSURE IN HPA 888.6 885.0 888.8 882.9 885.6 879.4 876.3 879.7 884.8 886.7 893.0 889.8 893.0 DAY 19 17 11 23 12 8 19 28 7 9 7 28 MIN. QFE PRESSURE IN HPA 871.0 872.0 870.2 868.9 873.4 871.3 868.7 872.0 872.8 878.6 880.1 873.4 868.7 DAY 17 27 25 10 4 24 16 14 2 1 20 10 MEAN QNH PRESSURE IN HPA 1018.2 1018.1 1014.1 1014.7 1017.3 1012.4 1010.2 1013.2 1017.2 1019.4 1022.2 1020.0 1016.4 MAX. QNH PRESSURE IN HPA 1027.4 1023.4 1027.6 1021.0 1024.0 1017.1 1013.6 1017.4 1023.1 1025.3 1032.4 1028.8 1032.4 DAY 19 17 11 23 12 8 19 28 7 9 7 28 MIN. QNH PRESSURE IN HPA 1007.6 1008.7 1006.7 1005.2 1010.3 1007.9 1005.0 1008.7 1009.6 1016.2 1017.8 1010.3 1005.0 DAY 17 27 25 10 4 24 16 14 2 1 20 10 MEAN QFF PRESSURE IN HPA 1019.9 1020.1 1014.1 1010.9 1011.5 1003.4 999.5 1003.8 1009.8 1014.2 1021.5 1021.2 1012.5 MAX. QFF PRESSURE IN HPA 1030.9 1028.2 1029.3 1020.1 1019.9 1008.7 1002.9 1010.6 1017.7 1020.7 1032.5 1032.7 1032.7 DAY 19 7 11 13 7 4 9 28 7 9 8 28 MIN. QFF PRESSURE IN HPA 1008.5 1006.1 1002.3 999.8 1003.8 998.3 992.7 998.9 999.8 1007.8 1013.6 1008.0 992.7 DAY 17 27 25 10 4 23 16 13 2 3 5 10 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 880.9 881.0 877.4 877.4 879.5 875.5 873.2 876.0 879.6 882.0 884.7 882.5 879.2 MAX. QFE PRESSURE IN HPA 888.9 886.1 888.9 883.6 885.2 880.8 876.3 879.7 885.2 887.7 894.2 891.0 894.2 DAY 19 7 11 20 12 9 19 28 18 8 7 28 MIN. QFE PRESSURE IN HPA 871.0 873.3 870.2 868.9 872.6 871.0 869.4 872.1 872.3 878.9 880.7 874.3 868.9 DAY 17 27 25 10 4 23 16 5 2 6 19 10 MEAN QNH PRESSURE IN HPA 1018.8 1018.9 1014.8 1014.9 1017.2 1012.7 1010.1 1013.2 1017.3 1020.0 1023.0 1020.5 1016.8 MAX. QNH PRESSURE IN HPA 1027.7 1024.6 1027.7 1021.8 1023.6 1018.6 1013.6 1017.4 1023.6 1026.4 1033.7 1030.1 1033.7 DAY 19 7 11 20 12 9 19 28 18 8 7 28 MIN. QNH PRESSURE IN HPA 1007.6 1010.2 1006.7 1005.2 1009.4 1007.6 1005.8 1008.8 1009.1 1016.5 1018.5 1011.3 1005.2 DAY 17 27 25 10 4 23 16 5 2 6 19 10 MEAN QFF PRESSURE IN HPA 1022.0 1022.3 1015.7 1011.6 1011.5 1003.9 999.5 1004.3 1011.2 1016.2 1023.7 1023.0 1013.7 MAX. QFF PRESSURE IN HPA 1032.4 1030.6 1030.8 1020.6 1019.2 1011.2 1003.1 1010.7 1019.0 1023.0 1035.1 1035.0 1035.1 DAY 19 7 11 20 6 9 21 28 18 9 7 28 MIN. QFF PRESSURE IN HPA 1008.4 1009.1 1002.8 1000.1 1002.8 998.1 993.9 999.0 999.6 1010.1 1015.0 1011.5 993.9 DAY 16 27 25 10 4 23 16 14 2 3 5 10 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 881.5 881.9 878.2 878.5 880.7 877.0 874.6 877.4 880.8 882.9 885.1 882.8 880.1 MAX. QFE PRESSURE IN HPA 889.0 888.5 889.8 885.6 885.4 882.5 877.4 881.1 885.7 888.6 894.7 891.7 894.7 DAY 19 7 11 20 11 4 21 28 7 8 7 28 MIN. QFE PRESSURE IN HPA 871.0 874.9 870.0 869.2 872.2 872.4 871.0 872.7 873.8 879.8 881.2 874.3 869.2 DAY 17 22 25 10 4 23 16 5 2 6 19 10 MEAN QNH PRESSURE IN HPA 1019.4 1019.9 1015.7 1016.0 1018.5 1014.3 1011.6 1014.8 1018.6 1021.0 1023.5 1020.9 1017.9 MAX. QNH PRESSURE IN HPA 1027.9 1027.3 1028.8 1024.0 1023.8 1020.5 1014.8 1019.0 1024.1 1027.4 1034.3 1030.9 1034.3 DAY 19 7 11 20 11 4 21 28 7 8 7 28 MIN. QNH PRESSURE IN HPA 1007.6 1012.0 1006.5 1005.6 1009.0 1009.2 1007.6 1009.5 1010.8 1017.5 1019.1 1011.3 1005.6 DAY 17 22 25 10 4 23 16 5 2 6 19 10 MEAN QFF PRESSURE IN HPA 1021.9 1022.7 1016.0 1012.3 1012.6 1005.0 1000.9 1005.5 1011.6 1016.2 1023.4 1022.8 1014.2 MAX. QFF PRESSURE IN HPA 1032.3 1033.1 1031.3 1022.9 1021.9 1013.0 1005.0 1011.2 1020.2 1023.3 1035.5 1035.9 1035.9 DAY 19 7 11 13 6 4 8 27 7 8 7 28 MIN. QFF PRESSURE IN HPA 1009.0 1009.5 1002.0 999.4 1001.8 999.1 995.8 1000.1 1000.8 1010.5 1014.8 1009.9 995.8 DAY 17 22 25 10 4 23 16 14 2 6 5 10 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 881.2 881.7 877.7 878.3 880.5 876.6 874.8 877.5 880.9 882.8 884.7 882.5 879.9 MAX. QFE PRESSURE IN HPA 889.4 888.5 889.6 883.8 886.0 882.0 878.0 881.2 885.4 888.6 894.5 891.5 894.5 DAY 23 7 11 13 6 6 8 9 7 8 7 28 MIN. QFE PRESSURE IN HPA 869.9 873.6 870.6 870.4 870.2 872.4 871.2 872.9 874.1 879.4 880.6 874.0 869.9 DAY 31 27 29 9 4 23 16 5 2 6 19 10 MEAN QNH PRESSURE IN HPA 1019.0 1019.6 1015.2 1015.8 1018.3 1013.9 1011.8 1014.9 1018.7 1020.9 1023.0 1020.5 1017.7 MAX. QNH PRESSURE IN HPA 1028.3 1027.3 1028.5 1022.0 1024.5 1020.0 1015.5 1019.1 1023.8 1027.4 1034.0 1030.7 1034.0 DAY 23 7 11 13 6 6 8 9 7 8 7 28 MIN. QNH PRESSURE IN HPA 1006.4 1010.5 1007.2 1006.9 1006.7 1009.2 1007.8 1009.7 1011.1 1017.1 1018.4 1011.0 1006.4 DAY 31 27 29 9 4 23 16 5 2 6 19 10 MEAN QFF PRESSURE IN HPA 1020.7 1021.5 1015.0 1011.6 1012.1 1004.2 1000.7 1005.3 1011.0 1015.4 1022.4 1021.6 1013.5 MAX. QFF PRESSURE IN HPA 1031.3 1033.4 1030.3 1021.6 1023.1 1010.7 1005.3 1011.3 1018.6 1022.5 1035.3 1035.2 1035.3 DAY 23 7 11 13 6 6 8 27 7 8 7 28 MIN. QFF PRESSURE IN HPA 1008.0 1005.8 1002.9 1001.7 998.4 998.6 995.6 1000.4 1000.7 1009.2 1015.0 1007.5 995.6 DAY 31 22 29 9 4 23 16 5 2 6 5 10 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.9 3.5 9.7 18.2 21.1 26.5 29.3 28.2 23.9 17.4 12.9 9.1 16.8 MINIMUN AIR TEMPERATURE (C) -2.8 -2.0 1.8 8.6 10.8 14.7 18.4 16.9 11.3 6.2 2.8 0.1 7.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 7 3 0 0 0 0 10 DAYS WITH MINIMUM TEMP. <=-4 10 8 4 0 0 0 0 0 0 0 0 3 25 DAYS WITH FREEZING MIN.<= 0 23 23 12 0 0 0 0 0 0 2 4 17 81 TEMPERATURE RECORDS LOWEST(C) -12.8 -9.0 -9.0 1.6 1.6 11.4 13.0 12.0 5.6 -1.6 -1.4 -5.0 -12.8 DAY 15 11 3 8 4 12 3 26 13 11 25 23 MAXIMUM AIR TEMPERATURE (C) 6.5 7.6 14.8 23.4 26.1 32.1 35.1 33.6 30.2 24.5 19.5 15.7 22.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 7 27 31 29 14 3 0 0 113 DAYS WITH MAXIMUM TEMP. <= 0 0 3 0 0 0 0 0 0 0 0 0 0 3 TEMPERATURE RECORDS HIGHEST(C) 12.4 17.0 24.5 31.8 33.8 37.6 41.6 37.0 36.6 33.6 26.2 24.2 41.6 DAY 26 8 29 18 22 28 6 18 6 2 1 12 DIF. BETWEEN (MAX.-MIN.) (C) 9.3 9.6 13.0 14.8 15.3 17.4 16.7 16.7 18.9 18.3 16.7 15.6 15.2 MEAN DAILY TEMP. (MDT) (C) 1.8 2.8 8.3 16.0 18.5 23.4 26.7 25.3 20.7 15.3 11.1 7.9 14.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 2.4 18.3 75.5 178.1 132.0 36.7 5.7 0.0 0.0 448.8 HEATING DEG. DAYS(BASE 18 0C) 502.0 424.7 301.4 85.1 46.8 0.0 0.0 0.0 8.8 105.9 205.6 312.8 1993.0 DEWPOINT (MEAN C) -1.4 -1.9 0.6 6.2 7.7 8.5 9.4 8.0 2.7 0.3 0.6 -0.3 3.4 MIXING RATIO (G/KG) 4.02 3.89 4.71 7.00 7.69 8.08 8.73 8.00 5.79 4.70 4.62 4.34 5.96 VAPOUR PRESSURE (HPA) 5.65 5.47 6.60 9.77 10.74 11.26 12.11 11.15 8.10 6.62 6.52 6.13 8.34 SATURATION DEF. (HPA) 1.61 2.89 6.69 12.52 15.74 24.67 30.47 28.36 23.84 15.13 9.36 6.20 14.79 RELATIVE HUMIDITY (MEAN %) 80 72 59 51 46 34 31 31 29 38 48 56 48 RELATIVE HUMIDITY (MAX. %) 93 91 84 80 68 52 49 52 50 65 73 79 70 RELATIVE HUMIDITY (MIN. %) 62 55 42 33 33 23 22 21 17 21 31 40 33 RELATIVE HUMIDITY (MEAN% 03UTC) 89 88 81 79 68 51 48 51 50 65 73 78 68 RELATIVE HUMIDITY (MEAN% 09UTC) 71 61 48 39 37 25 25 25 21 27 37 44 38 RELATIVE HUMIDITY (MEAN% 15UTC) 83 73 56 48 42 28 26 24 22 33 45 57 45 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 50.4 110.7 25.4 39.4 9.8 3.0 0.0 0.0 0.0 7.0 0.0 3.0 248.7 DAYS WITH PRECIPITATION >=10 1 4 1 2 0 0 0 0 0 0 0 0 8 DAYS WITH PRECIPITATION >= 5 4 6 1 2 0 0 0 0 0 1 0 0 14 DAYS WITH PRECIPITATION >= 1 12 11 5 4 5 2 0 0 0 1 0 2 42 DAYS WITH PRECIPITATION 18 16 10 10 10 2 1 1 2 1 0 3 74 GREATEST DAILY PRECIPITATION 13.7 29.0 14.0 22.0 3.0 2.0 0.0 0.0 0.0 7.0 0.0 2.0 29.0 DAY 6 10 2 6 13 21 ** ** ** 25 ** 25 DAY WITH THUNDER STORM 0 0 0 5 4 1 0 1 1 0 0 0 12 DAYS WITH SNOW OR SLEET 6 5 2 0 0 0 0 0 0 0 0 0 13 DAYS WITH DUST 0 0 2 0 1 0 4 2 2 1 0 0 12 WIND DIRECTION (PREVAILING) 45 225 90 90 90 90 90 90 90 90 90 225 90 PREVAILING WIND SPEED(KNOTS) 6.0 6.9 7.2 7.4 10.1 10.5 10.6 8.9 10.2 7.8 5.0 5.3 9.2 PREVAILING WIND PERCENT 6.3 6.4 7.7 14.0 20.6 12.4 22.4 18.7 16.0 7.7 2.7 5.2 11.2 CALMS PERCENT OF WIND 81.5 77.9 60.6 60.0 52.9 57.6 56.4 56.1 72.0 72.3 86.0 83.2 68.0 NO. OF WIND OBSERVATION 189 140 155 150 155 177 165 155 150 155 150 155 1896 VECTOR WIND DIRECTION (MEAN) 54 255 184 147 113 61 95 71 94 113 285 151 99 VECTOR WIND MAGNITUDE(KNOTS) 0.2 0.3 0.6 0.9 1.6 1.5 2.6 1.5 1.5 0.5 0.2 0.2 0.8 WIND STEADINESES (MEAN %) 16.7 18.8 22.2 29.0 34.0 35.7 61.9 40.5 65.2 27.8 25.0 20.0 30.8 WIND SPEED (MEAN KNOTS) 1.2 1.6 2.7 3.1 4.7 4.2 4.2 3.7 2.3 1.8 0.8 1.0 2.6 FASTEST WIND DIRECTION 70 280 180 120 250 120 120 330 80 100 210 80 250 FASTEST WIND SPEED (KNOTS) 16 16 23 27 29 29 23 19 27 23 12 14 29 DAY 2 28 30 5 30 15 2 1 5 9 7 12 DAYS WITH SKY CLEAR (0-2)/8 3 6 6 8 14 27 28 26 25 23 19 16 201 DAYS WITH P.CLOUDY (3-6)/8 15 9 15 20 15 3 3 5 5 8 9 10 117 DAYS WITH CLOUDY (7-8)/8 13 13 10 2 2 0 0 0 0 0 2 5 47 DAYS WITH VISIBILITY =< 2 KM 3 2 1 0 0 0 0 0 0 0 1 0 7 DURATION OF SUNSHINE HOURS 103.2 130.0 195.2 256.1 302.1 370.4 372.2 279.2 306.1 294.2 238.6 187.5 3034.8 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 880.6 881.0 879.3 879.0 880.1 878.8 875.3 878.5 880.0 883.9 884.7 886.0 880.6 MAX. QFE PRESSURE IN HPA 889.2 893.6 888.8 890.1 887.7 884.7 881.3 883.3 886.6 893.0 892.8 893.4 893.6 DAY-HOUR 4- 6 23- 6 26- 9 12- 6 3- 6 5- 6 20- 3 25- 6 13- 6 10- 6 21- 6 29- 6 MIN. QFE PRESSURE IN HPA 863.1 867.8 870.1 869.0 870.2 873.7 866.6 874.2 872.6 874.4 877.9 877.5 863.1 DAY-HOUR 13-15 13-15 30- 6 24-12 30- 6 29-12 5-15 5-15 6-12 2-12 1-12 21-12 MEAN QNH PRESSURE IN HPA 1018.4 1018.9 1017.0 1016.6 1017.8 1016.4 1012.4 1016.0 1017.8 1022.1 1023.0 1024.5 1018.4 MAX. QNH PRESSURE IN HPA 1028.1 1033.0 1027.6 1029.1 1026.4 1023.0 1019.2 1021.4 1025.2 1032.4 1032.1 1032.8 1033.0 DAY-HOUR 4- 6 23- 6 26- 9 12- 6 3- 6 5- 6 20- 3 25- 6 13- 6 10- 6 21- 6 29- 6 MIN. QNH PRESSURE IN HPA 998.7 1004.0 1006.6 1005.4 1006.7 1010.6 1002.7 1011.2 1009.4 1011.4 1015.4 1014.9 998.7 DAY-HOUR 13-15 13-15 30- 6 24-12 30- 6 29-12 5-15 5-15 6-12 2-12 1-12 21-12 MEAN QFF PRESSURE IN HPA 1021.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1032.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 23- 3 **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA 999.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 13-15 **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 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 880.5 881.0 879.4 879.5 880.7 880.1 876.3 879.5 881.0 884.4 885.2 886.4 881.2 MAX. QFE PRESSURE IN HPA 887.6 892.4 886.5 889.1 886.9 884.3 881.3 882.5 886.4 892.0 892.0 891.5 892.4 DAY 4 23 27 12 3 5 20 25 13 10 21 10 MIN. QFE PRESSURE IN HPA 870.5 870.1 870.5 872.5 871.3 876.5 868.3 876.3 874.8 876.7 880.9 878.4 868.3 DAY 13 14 30 24 22 29 6 13 6 2 1 21 MEAN QNH PRESSURE IN HPA 1018.3 1018.9 1017.0 1017.1 1018.5 1017.9 1013.6 1017.2 1018.9 1022.7 1023.5 1024.9 1019.0 MAX. QNH PRESSURE IN HPA 1026.3 1031.7 1025.0 1028.0 1025.5 1022.6 1019.2 1020.5 1024.9 1031.2 1031.2 1030.7 1031.7 DAY 4 23 27 12 3 5 20 25 13 10 21 10 MIN. QNH PRESSURE IN HPA 1007.0 1006.6 1007.0 1009.3 1007.9 1013.8 1004.6 1013.6 1011.9 1014.0 1018.7 1015.9 1004.6 DAY 13 14 30 24 22 29 6 13 6 2 1 21 MEAN QFF PRESSURE IN HPA 1021.9 1021.8 1017.2 1012.9 1012.6 1008.9 1003.4 1008.0 1012.4 1019.9 1023.0 1026.3 1015.7 MAX. QFF PRESSURE IN HPA 1032.8 1037.2 1026.7 1023.8 1025.7 1013.5 1009.4 1011.7 1022.0 1033.8 1032.1 1032.3 1037.2 DAY 23 23 27 12 3 6 20 25 13 10 21 10 MIN. QFF PRESSURE IN HPA 1009.5 1006.9 1000.1 1002.5 997.7 1002.6 991.7 1004.4 1000.4 1007.2 1015.4 1017.9 991.7 DAY 13 8 30 23 22 29 6 13 6 2 1 21 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 881.4 882.1 880.4 880.2 881.1 880.4 876.6 880.0 881.6 885.3 886.0 887.5 881.9 MAX. QFE PRESSURE IN HPA 889.2 893.6 887.4 890.1 887.7 884.7 881.0 883.3 886.6 893.0 892.8 893.4 893.6 DAY 4 23 27 12 3 5 20 25 13 10 21 29 MIN. QFE PRESSURE IN HPA 870.4 871.2 870.1 872.3 870.2 877.0 869.0 876.4 875.6 876.6 880.6 879.1 869.0 DAY 13 16 30 24 30 24 6 13 6 2 1 21 MEAN QNH PRESSURE IN HPA 1019.3 1020.1 1018.2 1017.9 1018.9 1018.2 1013.9 1017.7 1019.5 1023.7 1024.5 1026.2 1019.8 MAX. QNH PRESSURE IN HPA 1028.1 1033.0 1026.1 1029.1 1026.4 1023.0 1018.9 1021.4 1025.2 1032.4 1032.1 1032.8 1033.0 DAY 4 23 27 12 3 5 20 25 13 10 21 29 MIN. QNH PRESSURE IN HPA 1006.9 1007.8 1006.6 1009.1 1006.7 1014.4 1005.4 1013.7 1012.8 1013.9 1018.4 1016.7 1005.4 DAY 13 16 30 24 30 24 6 13 6 2 1 21 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 880.6 881.2 879.7 879.3 880.3 879.2 875.6 878.6 880.1 883.8 884.5 885.8 880.7 MAX. QFE PRESSURE IN HPA 888.2 892.3 888.8 889.7 886.9 884.0 879.5 882.1 884.8 891.2 891.2 892.6 892.6 DAY 22 23 26 12 3 5 23 25 13 9 21 29 MIN. QFE PRESSURE IN HPA 866.8 871.1 872.0 870.9 871.1 875.1 868.5 875.5 873.6 875.6 879.3 877.6 866.8 DAY 13 13 15 24 22 29 6 13 6 2 1 21 MEAN QNH PRESSURE IN HPA 1018.4 1019.0 1017.3 1017.0 1018.1 1016.8 1012.7 1016.2 1017.8 1022.0 1022.8 1024.2 1018.5 MAX. QNH PRESSURE IN HPA 1027.0 1031.6 1027.6 1028.6 1025.5 1022.2 1017.2 1020.1 1023.1 1030.3 1030.3 1031.9 1031.9 DAY 22 23 26 12 3 5 23 25 13 9 21 29 MIN. QNH PRESSURE IN HPA 1002.9 1007.7 1008.7 1007.5 1007.7 1012.2 1004.8 1012.7 1010.5 1012.8 1016.9 1015.0 1002.9 DAY 13 13 15 24 22 29 6 13 6 2 1 21 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 880.0 880.2 878.5 878.0 879.2 878.1 874.2 877.2 878.8 882.7 883.7 885.0 879.6 MAX. QFE PRESSURE IN HPA 887.8 890.2 887.5 888.0 885.7 882.7 878.3 880.0 883.5 891.0 889.7 892.1 892.1 DAY 22 23 26 12 3 5 15 25 12 9 21 29 MIN. QFE PRESSURE IN HPA 864.7 868.8 870.4 869.0 871.5 873.7 867.4 874.6 872.6 874.4 877.9 877.5 864.7 DAY 13 13 30 24 22 29 5 13 6 2 1 21 MEAN QNH PRESSURE IN HPA 1017.7 1018.0 1016.0 1015.4 1016.8 1015.6 1011.2 1014.6 1016.3 1020.7 1021.9 1023.3 1017.3 MAX. QNH PRESSURE IN HPA 1026.5 1029.2 1026.2 1026.7 1024.1 1020.8 1015.8 1017.7 1021.7 1030.1 1028.6 1031.3 1031.3 DAY 22 23 26 12 3 5 15 25 12 9 21 29 MIN. QNH PRESSURE IN HPA 1000.5 1005.1 1006.9 1005.4 1008.2 1010.6 1003.6 1011.7 1009.4 1011.4 1015.4 1014.9 1000.5 DAY 13 13 30 24 22 29 5 13 6 2 1 21 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 880.5 880.8 878.8 878.3 879.1 878.0 874.0 877.2 878.8 883.1 884.3 885.6 879.9 MAX. QFE PRESSURE IN HPA 888.4 891.1 887.8 887.9 885.7 882.7 878.5 880.0 884.1 891.2 890.2 892.7 892.7 DAY 22 22 26 12 3 5 20 30 12 9 21 29 MIN. QFE PRESSURE IN HPA 863.1 867.8 871.5 871.6 872.5 874.3 866.6 874.2 872.7 874.8 878.9 879.0 863.1 DAY 13 13 15 24 30 24 5 5 6 2 1 21 MEAN QNH PRESSURE IN HPA 1018.3 1018.6 1016.4 1015.9 1016.7 1015.5 1011.0 1014.6 1016.4 1021.2 1022.5 1024.1 1017.6 MAX. QNH PRESSURE IN HPA 1027.2 1030.2 1026.5 1026.6 1024.1 1020.8 1016.0 1017.7 1022.3 1030.3 1029.2 1032.0 1032.0 DAY 22 22 26 12 3 5 20 30 12 9 21 29 MIN. QNH PRESSURE IN HPA 998.7 1004.0 1008.2 1008.3 1009.3 1011.3 1002.7 1011.2 1009.5 1011.9 1016.5 1016.6 998.7 DAY 13 13 15 24 30 24 5 5 6 2 1 21 MEAN QFF PRESSURE IN HPA 1021.9 1021.7 1016.3 1011.6 1010.8 1006.5 1000.7 1005.4 1009.9 1018.4 1021.9 1025.4 1014.2 MAX. QFF PRESSURE IN HPA 1032.4 1034.7 1026.2 1023.0 1023.7 1011.7 1006.5 1009.1 1018.1 1030.2 1029.8 1033.8 1034.7 DAY 22 22 26 12 3 5 20 30 12 9 21 29 MIN. QFF PRESSURE IN HPA 999.7 1005.8 1004.7 1001.8 1001.3 1000.9 990.0 1001.6 999.4 1004.1 1012.3 1017.4 990.0 DAY 13 8 30 21 22 29 6 23 6 2 1 31 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 NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.2 8.7 9.2 16.0 22.5 29.0 28.2 29.2 23.5 18.3 8.6 5.9 16.9 MINIMUN AIR TEMPERATURE (C) -2.6 1.5 2.8 5.5 9.9 15.7 17.0 16.0 10.5 5.9 1.0 -2.3 6.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 1 6 2 0 0 0 0 9 DAYS WITH MINIMUM TEMP. <=-4 12 0 0 0 0 0 0 0 0 0 1 6 19 DAYS WITH FREEZING MIN.<= 0 22 11 8 2 0 0 0 0 0 0 13 26 82 TEMPERATURE RECORDS LOWEST(C) -11.4 -3.2 -3.2 -2.0 5.8 10.4 11.0 11.6 3.2 1.0 -4.0 -7.8 -11.4 DAY 3 2 7 24 13 18 14 17 30 28 22 1 MAXIMUM AIR TEMPERATURE (C) 8.1 13.4 13.6 21.6 28.3 34.0 33.3 34.6 30.1 25.2 13.5 11.8 22.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 13 29 28 31 19 1 0 0 121 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 16.2 20.6 21.6 27.8 35.0 39.8 39.0 38.2 36.8 31.0 23.2 16.0 39.8 DAY 16 27 27 30 20 29 5 30 13 12 1 30 DIF. BETWEEN (MAX.-MIN.) (C) 10.7 11.9 10.8 16.1 18.4 18.3 16.3 18.6 19.6 19.3 12.5 14.1 15.6 MEAN DAILY TEMP. (MDT) (C) 2.7 7.5 8.2 13.5 19.1 24.9 25.2 25.3 20.3 15.5 7.3 4.7 14.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 14.9 117.1 129.9 133.6 27.4 0.0 0.0 0.0 422.9 HEATING DEG. DAYS(BASE 18 0C) 473.2 295.2 303.5 135.2 20.7 0.0 0.0 0.0 15.2 82.3 321.9 411.4 2058.7 DEWPOINT (MEAN C) -1.5 -0.5 0.9 2.1 3.5 3.4 6.0 2.5 1.2 1.3 2.0 -1.1 1.6 MIXING RATIO (G/KG) 4.08 4.34 4.81 5.31 5.90 5.96 6.92 5.37 5.09 4.92 5.23 4.05 5.16 VAPOUR PRESSURE (HPA) 5.75 6.09 6.74 7.45 8.25 8.30 9.62 7.50 7.13 6.92 7.36 5.73 7.24 SATURATION DEF. (HPA) 2.34 5.72 5.68 11.85 20.59 33.29 30.08 34.46 24.02 15.74 4.49 4.08 16.03 RELATIVE HUMIDITY (MEAN %) 74 58 63 45 34 23 27 20 29 37 67 64 45 RELATIVE HUMIDITY (MAX. %) 91 86 86 76 58 38 46 34 52 65 86 86 67 RELATIVE HUMIDITY (MIN. %) 58 38 45 27 21 14 18 13 16 22 52 44 31 RELATIVE HUMIDITY (MEAN% 03UTC) 88 83 85 76 57 38 45 34 51 65 85 85 66 RELATIVE HUMIDITY (MEAN% 09UTC) 65 44 51 34 27 17 21 16 21 26 58 50 36 RELATIVE HUMIDITY (MEAN% 15UTC) 75 56 59 35 26 18 21 15 22 33 69 68 41 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 48.3 29.9 72.8 9.2 9.4 4.0 7.4 0.0 3.2 0.6 18.1 9.3 212.2 DAYS WITH PRECIPITATION >=10 2 1 2 0 0 0 0 0 0 0 0 0 5 DAYS WITH PRECIPITATION >= 5 3 1 5 1 0 0 1 0 0 0 2 1 14 DAYS WITH PRECIPITATION >= 1 5 7 9 3 3 1 2 0 1 0 3 2 36 DAYS WITH PRECIPITATION 13 9 14 11 6 2 3 0 3 1 9 7 78 GREATEST DAILY PRECIPITATION 22.6 17.0 29.0 6.0 4.4 4.0 5.0 0.0 3.0 0.6 8.0 6.2 29.0 DAY 19 21 3 7 11 9 13 ** 28 26 9 17 DAY WITH THUNDER STORM 0 4 1 1 4 3 2 0 0 0 0 0 15 DAYS WITH SNOW OR SLEET 5 0 2 0 0 0 0 0 0 0 1 0 8 DAYS WITH DUST 0 0 0 3 2 10 6 2 2 1 0 0 26 WIND DIRECTION (PREVAILING) 90 180 90 90 90 90 90 360 90 90 225 270 90 PREVAILING WIND SPEED(KNOTS) 5.1 8.8 6.0 8.3 10.3 9.2 9.8 10.0 9.1 6.4 5.8 5.1 8.3 PREVAILING WIND PERCENT 5.8 7.1 11.0 16.0 17.4 24.0 20.6 14.8 20.0 9.0 8.0 4.5 11.8 CALMS PERCENT OF WIND 76.8 70.7 60.6 53.3 49.0 46.0 49.7 49.0 61.3 76.1 79.3 89.0 63.4 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 217 185 155 153 130 93 101 18 108 108 246 250 111 VECTOR WIND MAGNITUDE(KNOTS) 0.5 0.5 0.5 0.6 1.3 2.3 2.3 1.7 2.1 0.5 0.6 0.4 0.7 WIND STEADINESES (MEAN %) 33.3 27.8 22.7 18.2 29.5 50.0 57.5 42.5 70.0 38.5 50.0 80.0 25.9 WIND SPEED (MEAN KNOTS) 1.5 1.8 2.2 3.3 4.4 4.6 4.0 4.0 3.0 1.3 1.2 0.5 2.7 FASTEST WIND DIRECTION 250 180 110 270 120 100 70 350 90 90 260 250 100 FASTEST WIND SPEED (KNOTS) 27 14 17 25 19 35 19 16 19 10 16 10 35 DAY 1 19 14 3 4 7 8 7 16 2 28 16 DAYS WITH SKY CLEAR (0-2)/8 12 15 9 13 23 26 21 30 29 25 10 18 231 DAYS WITH P.CLOUDY (3-6)/8 7 8 9 14 8 4 9 1 0 6 9 9 84 DAYS WITH CLOUDY (7-8)/8 12 5 13 3 0 0 1 0 1 0 11 4 50 DAYS WITH VISIBILITY =< 2 KM 4 0 2 1 0 0 0 0 0 0 2 0 9 DURATION OF SUNSHINE HOURS 146.5 197.5 181.6 240.4 329.8 349.9 341.7 372.8 319.1 283.9 167.5 203.9 3134.6 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 882.9 880.5 879.5 880.1 879.1 876.1 875.3 877.2 879.4 882.4 883.5 886.7 880.2 MAX. QFE PRESSURE IN HPA 895.2 889.6 886.8 887.4 885.8 883.8 880.9 884.3 885.9 888.0 891.5 894.9 895.2 DAY-HOUR 2- 6 12- 6 19- 6 23- 6 27- 6 17- 3 19- 3 20- 6 30- 6 26- 6 14- 6 11- 6 MIN. QFE PRESSURE IN HPA 874.8 868.5 872.6 871.2 869.4 865.4 870.6 872.7 873.9 876.7 875.0 878.5 865.4 DAY-HOUR 19- 3 21- 3 3- 9 9- 3 14-15 25-15 12-15 7-12 16-12 31-12 26-12 15-12 MEAN QNH PRESSURE IN HPA 1021.0 1018.3 1017.1 1017.8 1016.7 1013.4 1012.4 1014.6 1017.1 1020.5 1021.6 1025.3 1018.0 MAX. QNH PRESSURE IN HPA 1034.8 1028.5 1025.4 1026.1 1024.3 1022.0 1018.7 1022.6 1024.4 1026.7 1030.7 1034.5 1034.8 DAY-HOUR 2- 6 12- 6 19- 6 23- 6 27- 6 17- 3 19- 3 20- 6 30- 6 26- 6 14- 6 11- 6 MIN. QNH PRESSURE IN HPA 1011.9 1004.8 1009.4 1007.8 1005.8 1001.3 1007.2 1009.5 1010.9 1014.0 1012.1 1016.0 1001.3 DAY-HOUR 19- 3 21- 3 3- 9 9- 3 14-15 25-15 12-15 7-12 16-12 31-12 26-12 15-12 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 882.8 880.4 879.6 880.6 880.0 877.3 876.3 878.3 880.3 883.2 883.7 886.9 880.8 MAX. QFE PRESSURE IN HPA 891.2 888.4 886.3 887.0 885.4 883.8 880.9 883.8 885.0 886.9 890.6 893.1 893.1 DAY 3 12 19 23 27 17 19 20 29 14 14 1 MIN. QFE PRESSURE IN HPA 874.8 868.5 872.7 871.2 872.8 868.0 873.4 874.5 875.6 879.2 877.5 879.2 868.0 DAY 19 21 3 9 21 26 12 7 16 25 26 16 MEAN QNH PRESSURE IN HPA 1020.8 1018.2 1017.2 1018.4 1017.8 1014.7 1013.6 1015.8 1018.0 1021.3 1021.9 1025.5 1018.6 MAX. QNH PRESSURE IN HPA 1030.3 1027.2 1024.8 1025.6 1023.8 1022.0 1018.7 1022.0 1023.4 1025.5 1029.7 1032.5 1032.5 DAY 3 12 19 23 27 17 19 20 29 14 14 1 MIN. QNH PRESSURE IN HPA 1011.9 1004.8 1009.5 1007.8 1009.6 1004.2 1010.3 1011.5 1012.8 1016.8 1014.9 1016.8 1004.2 DAY 19 21 3 9 21 26 12 7 16 25 26 16 MEAN QFF PRESSURE IN HPA 1024.2 1018.8 1017.4 1015.4 1011.2 1005.2 1004.1 1006.4 1011.7 1018.2 1022.6 1028.3 1015.3 MAX. QFF PRESSURE IN HPA 1039.2 1028.1 1029.0 1026.0 1018.1 1014.5 1010.0 1012.4 1022.5 1025.1 1032.7 1038.4 1039.2 DAY 3 12 19 23 23 17 19 20 29 27 30 1 MIN. QFF PRESSURE IN HPA 1011.8 1001.4 1009.7 1002.7 1000.9 993.0 1000.8 1001.1 1004.8 1012.3 1012.0 1016.7 993.0 DAY 19 21 27 9 20 26 2 7 16 13 1 16 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 884.0 881.9 880.5 881.3 880.5 877.4 876.7 878.6 880.9 883.9 884.5 888.1 881.5 MAX. QFE PRESSURE IN HPA 895.2 889.6 886.8 887.4 885.8 883.1 880.6 884.3 885.9 888.0 891.5 894.9 895.2 DAY 2 12 19 23 27 10 19 20 30 26 14 11 MIN. QFE PRESSURE IN HPA 876.6 872.5 874.1 872.5 873.9 868.3 873.6 874.8 876.1 881.0 877.8 880.3 868.3 DAY 19 21 3 9 20 25 12 7 16 13 26 16 MEAN QNH PRESSURE IN HPA 1022.2 1019.9 1018.3 1019.1 1018.3 1014.9 1014.0 1016.2 1018.8 1022.1 1022.8 1026.8 1019.5 MAX. QNH PRESSURE IN HPA 1034.8 1028.5 1025.4 1026.1 1024.3 1021.2 1018.4 1022.6 1024.4 1026.7 1030.7 1034.5 1034.8 DAY 2 12 19 23 27 10 19 20 30 26 14 11 MIN. QNH PRESSURE IN HPA 1013.9 1009.3 1011.1 1009.3 1010.9 1004.6 1010.5 1011.9 1013.3 1018.9 1015.3 1018.1 1004.6 DAY 19 21 3 9 20 25 12 7 16 13 26 16 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 882.9 880.8 879.7 880.2 879.3 876.3 875.4 877.2 879.4 882.3 883.2 886.7 880.3 MAX. QFE PRESSURE IN HPA 893.8 888.3 885.8 885.8 884.6 881.6 878.9 882.4 884.7 886.5 890.6 892.5 893.8 DAY 2 12 31 23 27 10 19 20 29 26 30 6 MIN. QFE PRESSURE IN HPA 876.5 871.1 872.6 873.7 872.1 867.1 872.5 873.4 874.8 878.2 875.8 879.9 867.1 DAY 19 21 3 9 14 25 12 7 16 31 26 15 MEAN QNH PRESSURE IN HPA 1021.0 1018.6 1017.4 1018.0 1016.9 1013.5 1012.6 1014.6 1017.1 1020.4 1021.4 1025.2 1018.1 MAX. QNH PRESSURE IN HPA 1033.3 1027.1 1024.3 1024.3 1022.9 1019.5 1016.5 1020.4 1023.0 1025.0 1029.7 1031.8 1033.3 DAY 2 12 31 23 27 10 19 20 29 26 30 6 MIN. QNH PRESSURE IN HPA 1013.8 1007.7 1009.4 1010.6 1008.8 1003.2 1009.3 1010.3 1011.9 1015.7 1013.0 1017.6 1003.2 DAY 19 21 3 9 14 25 12 7 16 31 26 15 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 882.1 879.5 878.5 879.0 877.9 875.0 874.1 875.9 878.1 881.2 882.6 885.8 879.2 MAX. QFE PRESSURE IN HPA 893.3 886.6 884.6 884.5 883.0 880.8 877.6 880.6 883.6 885.7 890.3 891.8 893.3 DAY 2 12 31 22 27 10 28 19 28 26 30 6 MIN. QFE PRESSURE IN HPA 875.1 871.6 872.8 872.9 870.0 866.1 870.9 872.7 873.9 876.7 875.0 878.5 866.1 DAY 18 21 3 14 14 25 12 7 16 31 26 15 MEAN QNH PRESSURE IN HPA 1020.1 1017.2 1016.1 1016.6 1015.4 1012.1 1011.1 1013.1 1015.6 1019.1 1020.7 1024.2 1016.8 MAX. QNH PRESSURE IN HPA 1032.7 1025.2 1022.9 1022.8 1021.1 1018.6 1015.0 1018.4 1021.8 1024.1 1029.3 1031.0 1032.7 DAY 2 12 31 22 27 10 28 19 28 26 30 6 MIN. QNH PRESSURE IN HPA 1012.2 1008.3 1009.6 1009.7 1006.5 1002.1 1007.5 1009.5 1010.9 1014.0 1012.1 1016.0 1002.1 DAY 18 21 3 14 14 25 12 7 16 31 26 15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 882.7 880.0 879.0 879.2 877.8 874.7 873.8 876.0 878.3 881.6 883.3 886.2 879.4 MAX. QFE PRESSURE IN HPA 893.6 886.6 885.3 884.4 882.8 880.0 877.9 880.4 883.9 886.7 891.3 892.2 893.6 DAY 2 12 31 22 27 10 28 19 29 26 30 10 MIN. QFE PRESSURE IN HPA 875.4 872.0 873.3 872.5 869.4 865.4 870.6 873.1 874.0 878.3 875.9 878.5 865.4 DAY 18 20 21 14 14 25 12 6 15 31 1 15 MEAN QNH PRESSURE IN HPA 1020.8 1017.8 1016.6 1016.9 1015.2 1011.8 1010.8 1013.3 1015.8 1019.5 1021.5 1024.7 1017.1 MAX. QNH PRESSURE IN HPA 1033.0 1025.2 1023.7 1022.7 1020.9 1017.7 1015.4 1018.2 1022.1 1025.3 1030.4 1031.5 1033.0 DAY 2 12 31 22 27 10 28 19 29 26 30 10 MIN. QNH PRESSURE IN HPA 1012.6 1008.7 1010.2 1009.3 1005.8 1001.3 1007.2 1010.0 1011.0 1015.8 1013.1 1016.0 1001.3 DAY 18 20 21 14 14 25 12 6 15 31 1 15 MEAN QFF PRESSURE IN HPA 1024.1 1018.3 1016.6 1013.8 1008.7 1002.3 1001.3 1003.9 1009.6 1016.4 1022.3 1027.3 1013.7 MAX. QFF PRESSURE IN HPA 1040.1 1025.6 1025.7 1022.7 1015.1 1009.9 1007.5 1009.4 1020.0 1024.5 1034.8 1035.4 1040.1 DAY 2 12 19 23 23 10 28 18 29 26 30 1 MIN. QFF PRESSURE IN HPA 1012.2 1006.4 1007.5 1005.3 995.8 990.5 997.1 999.6 1002.9 1011.5 1008.8 1014.7 990.5 DAY 18 20 21 14 20 25 5 6 15 12 1 15 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 NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.9 4.2 8.4 18.9 26.6 27.1 28.0 25.8 22.3 14.4 6.2 4.3 15.8 MINIMUN AIR TEMPERATURE (C) -3.8 -3.0 0.9 8.8 13.4 14.2 17.5 15.5 13.3 7.1 0.7 -0.2 7.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 2 0 0 0 0 0 2 DAYS WITH MINIMUM TEMP. <=-4 15 10 3 0 0 0 0 0 0 0 1 2 31 DAYS WITH FREEZING MIN.<= 0 24 22 18 0 0 0 0 0 0 0 16 20 100 TEMPERATURE RECORDS LOWEST(C) -13.0 -14.8 -6.2 0.6 8.6 6.8 11.0 11.0 8.5 3.2 -4.2 -5.0 -14.8 DAY 12 9 17 1 12 14 26 14 21 9 18 31 MAXIMUM AIR TEMPERATURE (C) 8.8 8.9 15.7 26.7 32.1 31.8 33.5 33.6 30.8 22.5 12.9 10.5 22.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 8 24 21 30 31 20 0 0 0 134 DAYS WITH MAXIMUM TEMP. <= 0 2 2 0 0 0 0 0 0 0 0 0 0 4 TEMPERATURE RECORDS HIGHEST(C) 16.8 17.2 24.4 32.6 38.0 38.2 35.6 37.0 34.6 28.2 23.2 16.0 38.2 DAY 2 25 25 10 27 24 8 1 1 12 2 22 DIF. BETWEEN (MAX.-MIN.) (C) 12.6 11.9 14.8 17.9 18.7 17.6 16.0 18.1 17.5 15.4 12.2 10.7 15.3 MEAN DAILY TEMP. (MDT) (C) 2.5 3.0 8.3 17.7 22.7 23.0 25.5 24.6 22.0 14.8 6.8 5.2 14.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 8.1 59.1 79.7 139.4 110.2 45.7 0.0 0.0 0.0 442.2 HEATING DEG. DAYS(BASE 18 0C) 479.8 435.3 303.0 47.7 0.0 5.7 0.0 0.0 1.3 103.4 336.0 398.2 2110.4 DEWPOINT (MEAN C) -4.5 -3.1 -2.5 1.0 2.4 2.0 1.9 1.0 2.9 3.3 -0.4 0.4 0.4 MIXING RATIO (G/KG) 3.31 3.57 3.73 4.87 5.42 5.33 5.22 4.95 5.61 5.65 4.28 4.56 4.71 VAPOUR PRESSURE (HPA) 4.65 5.02 5.24 6.82 7.57 7.44 7.29 6.92 7.85 7.94 6.05 6.43 6.60 SATURATION DEF. (HPA) 4.06 3.67 6.87 16.77 28.91 30.18 31.76 28.03 20.65 9.45 4.00 2.20 15.55 RELATIVE HUMIDITY (MEAN %) 59 64 53 35 24 24 20 23 33 52 67 79 44 RELATIVE HUMIDITY (MAX. %) 80 86 81 60 44 40 34 37 52 77 87 94 64 RELATIVE HUMIDITY (MIN. %) 40 44 28 17 14 15 13 11 16 29 41 53 27 RELATIVE HUMIDITY (MEAN% 03UTC) 78 83 76 57 44 39 33 36 47 72 84 91 62 RELATIVE HUMIDITY (MEAN% 09UTC) 48 50 35 20 17 19 16 15 19 35 47 60 32 RELATIVE HUMIDITY (MEAN% 15UTC) 58 60 38 22 18 17 14 13 25 45 63 79 38 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 16.8 27.2 10.5 0.9 0.0 5.0 0.0 0.0 1.3 12.7 35.0 48.7 158.1 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 1 1 2 DAYS WITH PRECIPITATION >= 5 1 3 1 0 0 1 0 0 0 1 3 4 14 DAYS WITH PRECIPITATION >= 1 6 4 2 0 0 1 0 0 1 3 4 7 28 DAYS WITH PRECIPITATION 11 9 6 5 0 1 1 1 4 6 6 8 58 GREATEST DAILY PRECIPITATION 6.5 8.0 7.7 0.4 0.0 5.0 0.0 0.0 1.1 8.0 13.6 19.0 19.0 DAY 30 14 3 1 ** 13 ** ** 19 15 6 16 DAY WITH THUNDER STORM 0 0 1 1 0 0 0 0 0 1 0 0 3 DAYS WITH SNOW OR SLEET 3 3 2 0 0 0 0 0 0 0 2 1 11 DAYS WITH DUST 1 1 2 3 5 4 2 2 3 0 0 0 23 WIND DIRECTION (PREVAILING) 90 270 225 225 90 90 360 135 90 90 270 360 90 PREVAILING WIND SPEED(KNOTS) 6.6 6.8 7.5 8.0 10.9 10.1 8.9 7.3 8.8 6.2 6.8 4.3 9.1 PREVAILING WIND PERCENT 6.5 8.6 6.9 9.6 32.9 27.3 9.4 8.1 16.7 5.2 3.3 3.2 9.1 CALMS PERCENT OF WIND 72.9 73.6 61.7 64.4 49.7 48.0 57.5 67.7 63.8 80.6 88.8 85.9 69.3 NO. OF WIND OBSERVATION 155 174 248 208 155 150 181 248 240 248 240 248 2495 VECTOR WIND DIRECTION (MEAN) 186 281 203 218 92 94 21 92 81 128 255 298 93 VECTOR WIND MAGNITUDE(KNOTS) 0.1 0.4 0.2 1.0 3.0 3.2 0.9 0.9 1.5 0.2 0.3 0.1 0.6 WIND STEADINESES (MEAN %) 6.7 25.0 7.4 40.0 62.5 68.1 25.7 34.6 57.7 20.0 50.0 16.7 25.0 WIND SPEED (MEAN KNOTS) 1.5 1.6 2.7 2.5 4.8 4.7 3.5 2.6 2.6 1.0 0.6 0.6 2.4 FASTEST WIND DIRECTION 250 280 190 280 80 120 110 50 90 70 270 190 190 FASTEST WIND SPEED (KNOTS) 16 14 21 16 17 17 17 17 16 16 16 16 21 DAY 7 8 9 1 5 6 4 8 2 1 26 26 DAYS WITH SKY CLEAR (0-2)/8 15 19 15 14 24 27 30 29 26 18 13 11 241 DAYS WITH P.CLOUDY (3-6)/8 11 3 8 14 5 2 1 2 4 10 12 11 83 DAYS WITH CLOUDY (7-8)/8 5 7 8 2 2 1 0 0 0 3 5 9 42 DAYS WITH VISIBILITY =< 2 KM 0 2 1 0 0 0 0 0 1 0 1 4 9 DURATION OF SUNSHINE HOURS 191.0 197.2 239.6 276.7 353.4 347.5 385.5 368.8 303.2 265.2 202.1 165.9 3296.1 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 881.2 881.3 879.7 879.2 876.9 876.7 877.3 877.8 879.4 883.7 885.7 883.6 880.2 MAX. QFE PRESSURE IN HPA 889.5 890.1 888.0 885.7 884.6 883.6 882.4 882.9 885.8 889.6 897.0 891.0 897.0 DAY-HOUR 31- 6 29- 6 27- 6 3- 6 5- 6 16- 6 30-18 23- 6 29- 6 16- 6 17- 6 4- 6 MIN. QFE PRESSURE IN HPA 871.0 869.3 872.1 873.9 868.9 869.2 871.9 871.6 871.1 877.2 877.5 872.6 868.9 DAY-HOUR 21- 3 7-12 9-12 23-12 27-12 25-15 8-15 3-15 1-12 1-12 6-12 16- 0 MEAN QNH PRESSURE IN HPA 1019.1 1019.2 1017.4 1016.8 1014.2 1014.0 1014.7 1015.3 1017.1 1021.9 1024.2 1021.8 1018.0 MAX. QNH PRESSURE IN HPA 1028.4 1029.1 1026.7 1024.1 1022.9 1021.8 1020.4 1021.0 1024.3 1028.5 1036.9 1030.1 1036.9 DAY-HOUR 31- 6 29- 6 27- 6 3- 6 5- 6 16- 6 30-18 23- 6 29- 6 16- 6 17- 6 4- 6 MIN. QNH PRESSURE IN HPA 1007.6 1005.7 1008.8 1010.9 1005.2 1005.6 1008.6 1008.3 1007.7 1014.6 1014.9 1009.4 1005.2 DAY-HOUR 21- 3 7-12 9-12 23-12 27-12 25-15 8-15 3-15 1-12 1-12 6-12 16- 0 MEAN QFF PRESSURE IN HPA ****** ****** 1016.7 1011.7 ****** ****** ****** 1006.0 1009.4 1018.1 1024.7 1023.2 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1029.9 1022.5 ****** ****** ****** 1012.7 1018.9 1027.7 1040.4 1032.2 ****** DAY-HOUR **-** **-** 1- 3 3- 6 **-** **-** **-** 20- 3 26- 3 16- 6 17- 6 10- 6 MIN. QFF PRESSURE IN HPA ****** ****** 1002.8 1003.2 ****** ****** ****** 998.6 997.9 1007.5 1013.6 1009.7 ****** DAY-HOUR **-** **-** 25- 0 11-12 **-** **-** **-** 3-15 1-12 1-12 6-12 16- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 879.6 879.6 ****** ****** ****** 878.0 879.3 883.6 885.6 883.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** 886.9 884.2 ****** ****** ****** 881.3 884.2 888.9 894.8 888.7 ****** DAY ** ** 1 3 ** ** ** 23 30 16 17 5 MIN. QFE PRESSURE IN HPA ****** ****** 873.3 875.9 ****** ****** ****** 873.7 872.2 878.9 878.9 872.6 ****** DAY ** ** 25 11 ** ** ** 4 2 1 7 16 MEAN QNH PRESSURE IN HPA ****** ****** 1017.2 1017.2 ****** ****** ****** 1015.5 1016.9 1021.7 1024.0 1021.6 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1025.5 1022.5 ****** ****** ****** 1019.2 1022.5 1027.7 1034.4 1027.5 ****** DAY ** ** 1 3 ** ** ** 23 30 16 17 5 MIN. QNH PRESSURE IN HPA ****** ****** 1010.2 1013.1 ****** ****** ****** 1010.6 1009.0 1016.5 1016.5 1009.4 ****** DAY ** ** 25 11 ** ** ** 4 2 1 7 16 MEAN QFF PRESSURE IN HPA ****** ****** 1016.3 1011.7 ****** ****** ****** 1006.2 1008.9 1017.3 1024.0 1022.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1027.8 1019.9 ****** ****** ****** 1010.7 1016.1 1025.0 1036.9 1029.0 ****** DAY ** ** 1 3 ** ** ** 21 26 16 17 10 MIN. QFF PRESSURE IN HPA ****** ****** 1002.8 1004.5 ****** ****** ****** 1000.9 999.1 1008.9 1015.3 1009.7 ****** DAY ** ** 25 11 ** ** ** 4 2 1 6 16 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 881.2 881.2 880.2 879.8 878.3 878.1 878.1 878.8 880.3 884.2 886.0 883.6 880.8 MAX. QFE PRESSURE IN HPA 889.2 888.6 887.2 885.4 884.0 883.4 881.6 882.4 884.9 888.9 895.8 889.4 895.8 DAY 31 11 1 3 5 16 26 23 29 16 17 4 MIN. QFE PRESSURE IN HPA 871.0 871.3 874.1 876.1 873.1 872.8 874.0 874.4 873.7 879.7 879.5 873.3 871.0 DAY 21 7 9 22 27 26 11 31 2 1 7 16 MEAN QNH PRESSURE IN HPA 1019.1 1019.1 1017.9 1017.6 1015.8 1015.6 1015.6 1016.4 1018.0 1022.4 1024.5 1021.8 1018.7 MAX. QNH PRESSURE IN HPA 1028.1 1027.4 1025.8 1023.8 1022.2 1021.6 1019.5 1020.4 1023.2 1027.7 1035.5 1028.3 1035.5 DAY 31 11 1 3 5 16 26 23 29 16 17 4 MIN. QNH PRESSURE IN HPA 1007.6 1007.9 1011.1 1013.3 1010.0 1009.6 1011.0 1011.4 1010.6 1017.4 1017.2 1010.2 1007.6 DAY 21 7 9 22 27 26 11 31 2 1 7 16 MEAN QFF PRESSURE IN HPA 1022.6 1022.1 1018.0 1012.3 1007.7 1006.8 1006.1 1007.7 1011.2 1019.7 1026.0 1024.0 1015.4 MAX. QFF PRESSURE IN HPA 1033.5 1035.2 1029.9 1022.0 1015.9 1015.9 1011.9 1012.7 1018.9 1026.9 1039.1 1030.2 1039.1 DAY 13 11 1 3 6 14 26 20 26 16 17 10 MIN. QFF PRESSURE IN HPA 1009.0 1009.4 1005.5 1005.4 999.8 999.4 1000.1 1001.9 1001.7 1011.8 1015.5 1011.0 999.4 DAY 21 26 25 22 27 25 11 4 1 1 6 16 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 882.5 882.3 880.9 880.4 878.4 878.1 878.2 879.3 881.0 885.0 886.9 884.8 881.5 MAX. QFE PRESSURE IN HPA 889.5 890.1 888.0 885.7 884.6 883.6 882.3 882.9 885.8 889.6 897.0 891.0 897.0 DAY 31 29 27 3 5 16 30 23 29 16 17 4 MIN. QFE PRESSURE IN HPA 872.6 871.6 873.8 876.1 872.4 872.6 874.2 875.0 874.0 880.1 880.4 875.2 871.6 DAY 21 7 9 23 27 26 11 3 1 1 6 16 MEAN QNH PRESSURE IN HPA 1020.5 1020.4 1018.7 1018.2 1016.0 1015.6 1015.7 1016.9 1018.9 1023.3 1025.5 1023.2 1019.4 MAX. QNH PRESSURE IN HPA 1028.4 1029.1 1026.7 1024.1 1022.9 1021.8 1020.3 1021.0 1024.3 1028.5 1036.9 1030.1 1036.9 DAY 31 29 27 3 5 16 30 23 29 16 17 4 MIN. QNH PRESSURE IN HPA 1009.4 1008.3 1010.8 1013.3 1009.2 1009.4 1011.2 1012.1 1011.0 1017.8 1018.2 1012.3 1008.3 DAY 21 7 9 23 27 26 11 3 1 1 6 16 MEAN QFF PRESSURE IN HPA ****** ****** 1018.2 1013.7 ****** ****** ****** 1007.3 1011.1 1019.6 1026.2 1024.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1028.7 1022.5 ****** ****** ****** 1012.1 1018.3 1027.7 1040.4 1032.2 ****** DAY ** ** 1 3 ** ** ** 18 26 16 17 10 MIN. QFF PRESSURE IN HPA ****** ****** 1005.0 1005.9 ****** ****** ****** 1001.4 1001.3 1011.3 1017.0 1014.3 ****** DAY ** ** 25 11 ** ** ** 3 1 1 6 16 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 881.1 881.5 879.9 879.2 877.0 876.8 877.0 878.0 879.4 883.6 885.5 883.4 880.2 MAX. QFE PRESSURE IN HPA 888.4 889.6 887.2 884.9 883.5 881.9 880.6 881.9 883.8 888.3 895.7 890.2 895.7 DAY 31 29 27 3 5 3 26 23 29 16 17 4 MIN. QFE PRESSURE IN HPA 872.2 870.2 872.3 874.7 870.5 871.2 873.3 873.7 872.2 878.6 878.8 875.0 870.2 DAY 21 7 9 23 27 26 9 3 1 1 6 15 MEAN QNH PRESSURE IN HPA 1018.9 1019.5 1017.6 1016.9 1014.4 1014.1 1014.3 1015.5 1017.0 1021.8 1023.9 1021.5 1018.0 MAX. QNH PRESSURE IN HPA 1027.2 1028.5 1025.8 1023.2 1021.7 1019.9 1018.4 1019.9 1022.0 1027.1 1035.4 1029.2 1035.4 DAY 31 29 27 3 5 3 26 23 29 16 17 4 MIN. QNH PRESSURE IN HPA 1009.0 1006.7 1009.1 1011.8 1007.0 1007.8 1010.2 1010.6 1009.0 1016.2 1016.4 1012.1 1006.7 DAY 21 7 9 23 27 26 9 3 1 1 6 15 MEAN QFF PRESSURE IN HPA ****** ****** 1016.5 1012.0 ****** ****** ****** 1005.9 1008.7 1017.3 1023.7 1022.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1025.9 1020.9 ****** ****** ****** 1010.9 1015.0 1025.3 1038.3 1029.3 ****** DAY ** ** 1 3 ** ** ** 20 26 16 17 10 MIN. QFF PRESSURE IN HPA ****** ****** 1004.8 1003.6 ****** ****** ****** 999.8 998.4 1008.8 1015.3 1012.9 ****** DAY ** ** 25 11 ** ** ** 3 1 1 6 15 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 880.4 880.5 878.5 877.9 875.5 875.5 875.7 876.5 878.1 882.6 884.8 882.9 879.1 MAX. QFE PRESSURE IN HPA 886.4 888.2 885.6 883.5 882.5 880.7 880.4 880.9 882.8 887.4 894.5 889.4 894.5 DAY 31 29 27 3 5 13 30 23 29 16 17 4 MIN. QFE PRESSURE IN HPA 872.3 869.3 872.1 873.9 868.9 869.8 871.9 872.1 871.1 877.2 877.5 875.0 868.9 DAY 21 7 9 23 27 26 11 3 1 1 6 15 MEAN QNH PRESSURE IN HPA 1018.2 1018.3 1016.1 1015.3 1012.7 1012.7 1012.9 1013.8 1015.6 1020.6 1023.1 1021.0 1016.7 MAX. QNH PRESSURE IN HPA 1024.9 1027.0 1024.0 1021.7 1020.5 1018.5 1018.2 1018.7 1020.9 1026.1 1034.0 1028.3 1034.0 DAY 31 29 27 3 5 13 30 23 29 16 17 4 MIN. QNH PRESSURE IN HPA 1009.1 1005.7 1008.8 1010.9 1005.2 1006.3 1008.6 1008.8 1007.7 1014.6 1014.9 1012.1 1005.2 DAY 21 7 9 23 27 26 11 3 1 1 6 15 MEAN QFF PRESSURE IN HPA ****** ****** 1015.1 1010.5 ****** ****** ****** 1004.5 1007.7 1016.2 1023.2 1021.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1024.0 1019.3 ****** ****** ****** 1010.4 1013.3 1023.1 1036.7 1029.1 ****** DAY ** ** 27 3 ** ** ** 23 29 16 17 17 MIN. QFF PRESSURE IN HPA ****** ****** 1005.0 1003.2 ****** ****** ****** 998.6 997.9 1007.5 1013.6 1013.4 ****** DAY ** ** 25 11 ** ** ** 3 1 1 6 15 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 881.0 881.0 879.0 877.9 875.2 875.2 875.7 876.3 878.4 883.2 885.4 883.5 879.3 MAX. QFE PRESSURE IN HPA 886.7 888.3 885.0 883.6 882.4 880.0 881.2 880.5 883.5 887.5 895.1 889.7 895.1 DAY 31 29 27 3 5 3 30 23 29 15 17 4 MIN. QFE PRESSURE IN HPA 873.0 871.3 873.0 874.2 869.4 869.2 871.9 871.6 871.7 879.1 877.7 874.6 869.2 DAY 21 7 9 21 27 25 8 3 1 13 6 15 MEAN QNH PRESSURE IN HPA 1018.8 1018.9 1016.6 1015.4 1012.3 1012.4 1012.9 1013.6 1015.9 1021.3 1023.8 1021.6 1017.0 MAX. QNH PRESSURE IN HPA 1025.3 1027.1 1023.4 1021.8 1020.4 1017.7 1019.1 1018.3 1021.7 1026.2 1034.7 1028.6 1034.7 DAY 31 29 27 3 5 3 30 23 29 15 17 4 MIN. QNH PRESSURE IN HPA 1009.9 1007.9 1009.9 1011.2 1005.8 1005.6 1008.6 1008.3 1008.4 1016.7 1015.1 1011.7 1005.6 DAY 21 7 9 21 27 25 8 3 1 13 6 15 MEAN QFF PRESSURE IN HPA 1022.3 1021.9 1016.6 1010.1 1004.2 1003.7 1003.4 1004.9 1009.2 1018.6 1025.3 1023.8 1013.7 MAX. QFF PRESSURE IN HPA 1031.6 1035.0 1026.0 1020.4 1013.8 1013.3 1008.3 1009.7 1016.2 1024.9 1038.9 1030.7 1038.9 DAY 13 10 1 3 5 13 26 23 29 16 17 10 MIN. QFF PRESSURE IN HPA 1010.9 1009.3 1007.4 1003.6 994.9 994.9 998.2 998.6 999.3 1011.9 1014.1 1013.1 994.9 DAY 21 7 25 30 27 24 8 3 1 1 6 15 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 880.0 879.8 ****** ****** ****** 877.8 879.6 884.0 886.0 883.9 ****** MAX. QFE PRESSURE IN HPA ****** ****** 885.4 884.7 ****** ****** ****** 881.4 885.0 888.9 894.6 889.8 ****** DAY ** ** 27 3 ** ** ** 23 29 15 17 4 MIN. QFE PRESSURE IN HPA ****** ****** 874.3 876.2 ****** ****** ****** 873.1 872.6 879.8 878.5 875.0 ****** DAY ** ** 13 10 ** ** ** 3 1 13 6 15 MEAN QNH PRESSURE IN HPA ****** ****** 1017.7 1017.5 ****** ****** ****** 1015.3 1017.3 1022.2 1024.5 1022.1 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1023.8 1023.0 ****** ****** ****** 1019.3 1023.4 1027.7 1034.2 1028.8 ****** DAY ** ** 27 3 ** ** ** 23 29 15 17 4 MIN. QNH PRESSURE IN HPA ****** ****** 1011.3 1013.5 ****** ****** ****** 1010.0 1009.4 1017.5 1016.0 1012.1 ****** DAY ** ** 13 10 ** ** ** 3 1 13 6 15 MEAN QFF PRESSURE IN HPA ****** ****** 1017.1 1012.3 ****** ****** ****** 1005.7 1009.5 1018.5 1025.3 1023.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1026.8 1021.4 ****** ****** ****** 1010.3 1017.4 1026.1 1038.3 1030.9 ****** DAY ** ** 3 3 ** ** ** 18 29 15 17 17 MIN. QFF PRESSURE IN HPA ****** ****** 1005.2 1005.8 ****** ****** ****** 999.3 999.8 1011.3 1015.8 1013.2 ****** DAY ** ** 24 10 ** ** ** 3 1 12 6 15 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 879.9 879.7 ****** ****** ****** 877.9 879.5 883.9 885.8 883.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** 885.8 884.5 ****** ****** ****** 881.0 884.6 889.1 894.3 889.0 ****** DAY ** ** 26 2 ** ** ** 20 29 15 16 4 MIN. QFE PRESSURE IN HPA ****** ****** 873.8 875.9 ****** ****** ****** 873.1 872.8 880.1 878.5 873.4 ****** DAY ** ** 24 10 ** ** ** 3 1 13 6 15 MEAN QNH PRESSURE IN HPA ****** ****** 1017.6 1017.4 ****** ****** ****** 1015.4 1017.2 1022.1 1024.2 1021.6 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1024.3 1022.8 ****** ****** ****** 1018.9 1022.9 1028.0 1033.8 1027.9 ****** DAY ** ** 26 2 ** ** ** 20 29 15 16 4 MIN. QNH PRESSURE IN HPA ****** ****** 1010.8 1013.1 ****** ****** ****** 1010.0 1009.6 1017.8 1016.0 1010.3 ****** DAY ** ** 24 10 ** ** ** 3 1 13 6 15 MEAN QFF PRESSURE IN HPA ****** ****** 1016.4 1011.7 ****** ****** ****** 1005.8 1008.9 1017.7 1024.1 1022.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1026.2 1020.4 ****** ****** ****** 1010.3 1016.2 1025.4 1036.2 1029.7 ****** DAY ** ** 3 2 ** ** ** 18 29 15 17 9 MIN. QFF PRESSURE IN HPA ****** ****** 1003.4 1004.4 ****** ****** ****** 999.2 999.5 1010.4 1015.8 1010.3 ****** DAY ** ** 24 10 ** ** ** 3 1 12 5 15 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.2 4.1 9.9 17.6 23.2 26.2 26.6 25.8 21.1 15.4 9.6 6.1 15.5 MINIMUN AIR TEMPERATURE (C) -4.8 -2.2 2.5 8.8 14.1 16.6 17.9 16.4 11.4 7.5 3.5 1.6 7.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 1 1 0 0 0 0 4 DAYS WITH MINIMUM TEMP. <=-4 18 7 2 0 0 0 0 0 0 0 0 0 27 DAYS WITH FREEZING MIN.<= 0 29 23 9 0 0 0 0 0 0 1 5 10 77 TEMPERATURE RECORDS LOWEST(C) -14.0 -8.2 -5.0 4.2 9.4 11.8 11.6 11.2 2.6 -0.8 -1.6 -2.4 -14.0 DAY 30 1 12 2 2 5 31 15 21 12 21 4 MAXIMUM AIR TEMPERATURE (C) 6.7 11.1 17.7 26.0 31.2 34.1 34.0 33.9 30.0 24.1 17.0 11.6 23.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 4 20 28 31 28 18 2 0 0 131 DAYS WITH MAXIMUM TEMP. <= 0 4 0 1 0 0 0 0 0 0 0 0 0 5 TEMPERATURE RECORDS HIGHEST(C) 16.8 16.0 25.0 31.6 37.4 39.4 39.0 38.8 36.4 31.4 24.4 17.4 39.4 DAY 4 18 23 7 16 27 11 31 8 1 7 30 DIF. BETWEEN (MAX.-MIN.) (C) 11.5 13.3 15.2 17.2 17.1 17.5 16.1 17.5 18.6 16.6 13.5 10.0 15.3 MEAN DAILY TEMP. (MDT) (C) 1.0 4.5 10.1 17.4 22.7 25.3 25.9 25.1 20.7 15.8 10.3 6.6 15.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 4.6 56.3 130.6 153.1 128.4 41.4 0.5 0.0 0.0 514.9 HEATING DEG. DAYS(BASE 18 0C) 528.2 378.8 245.8 44.2 0.0 0.0 0.0 0.0 19.0 78.0 231.8 353.3 1879.1 DEWPOINT (MEAN C) -4.9 -3.7 -0.7 3.3 4.5 2.6 4.7 4.8 0.4 1.4 -0.1 2.0 1.2 MIXING RATIO (G/KG) 3.09 3.46 4.31 5.67 6.26 5.55 6.32 6.33 4.75 5.04 4.41 5.10 5.02 VAPOUR PRESSURE (HPA) 4.37 4.87 6.04 7.94 8.73 7.74 8.80 8.84 6.66 7.09 6.21 7.19 7.04 SATURATION DEF. (HPA) 2.33 3.80 7.34 13.58 21.27 28.07 27.45 25.96 20.44 11.69 6.51 2.57 14.25 RELATIVE HUMIDITY (MEAN %) 72 63 55 44 34 25 27 29 28 44 55 78 46 RELATIVE HUMIDITY (MAX. %) 90 87 82 70 55 40 42 45 47 66 79 93 66 RELATIVE HUMIDITY (MIN. %) 49 35 29 20 17 13 15 16 15 24 32 55 27 RELATIVE HUMIDITY (MEAN% 03UTC) 84 83 78 69 50 37 40 43 45 63 71 90 63 RELATIVE HUMIDITY (MEAN% 09UTC) 55 41 33 24 20 15 19 19 17 29 38 62 31 RELATIVE HUMIDITY (MEAN% 15UTC) 68 54 42 31 23 17 19 19 20 35 51 76 38 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 21.7 18.3 38.7 1.4 16.5 2.3 3.0 0.1 3.0 2.4 17.2 53.4 178.0 DAYS WITH PRECIPITATION >=10 0 1 2 0 0 0 0 0 0 0 1 1 5 DAYS WITH PRECIPITATION >= 5 1 2 3 0 2 0 0 0 0 0 1 4 13 DAYS WITH PRECIPITATION >= 1 4 3 5 1 3 1 1 0 1 1 2 11 33 DAYS WITH PRECIPITATION 6 6 7 3 5 2 1 3 2 6 6 12 59 GREATEST DAILY PRECIPITATION 9.0 11.0 18.1 1.0 7.0 2.0 3.0 0.1 3.0 2.3 14.0 14.0 18.1 DAY 20 19 11 10 4 21 19 12 1 23 19 2 DAY WITH THUNDER STORM 0 2 2 1 3 2 1 0 1 0 1 1 14 DAYS WITH SNOW OR SLEET 8 0 3 0 0 0 0 0 0 0 1 4 16 DAYS WITH DUST 0 0 0 2 4 4 4 1 1 1 1 0 18 WIND DIRECTION (PREVAILING) 90 225 270 90 90 90 90 90 90 90 270 225 90 PREVAILING WIND SPEED(KNOTS) 4.8 6.3 8.3 7.5 9.3 9.1 11.3 7.5 7.7 8.3 7.8 7.0 8.6 PREVAILING WIND PERCENT 2.0 5.8 9.7 12.5 14.5 19.6 18.1 12.1 15.0 6.5 4.6 0.8 9.5 CALMS PERCENT OF WIND 93.1 76.8 62.5 64.6 60.1 60.8 62.1 72.6 72.9 85.5 87.1 97.2 74.6 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 56 189 255 129 116 87 91 110 95 114 219 0 106 VECTOR WIND MAGNITUDE(KNOTS) 0.1 0.3 0.7 0.3 0.7 1.5 1.8 0.8 0.8 0.4 0.1 0.0 0.5 WIND STEADINESES (MEAN %) 25.0 20.0 26.9 11.1 21.2 48.4 50.0 42.1 44.4 40.0 11.1 0.0 26.3 WIND SPEED (MEAN KNOTS) 0.4 1.5 2.6 2.7 3.3 3.1 3.6 1.9 1.8 1.0 0.9 0.1 1.9 FASTEST WIND DIRECTION 340 220 260 250 220 60 80 80 110 90 270 300 60 FASTEST WIND SPEED (KNOTS) 10 14 16 16 21 29 23 16 16 16 14 10 29 DAY 4 22 18 13 7 20 3 14 13 1 8 30 DAYS WITH SKY CLEAR (0-2)/8 14 21 14 16 20 23 27 27 26 22 13 8 231 DAYS WITH P.CLOUDY (3-6)/8 10 3 11 12 10 6 4 3 4 8 13 15 99 DAYS WITH CLOUDY (7-8)/8 7 4 6 2 1 1 0 1 0 1 4 8 35 DAYS WITH VISIBILITY =< 2 KM 3 0 0 0 0 0 0 0 0 0 0 5 8 DURATION OF SUNSHINE HOURS 188.7 225.6 235.7 278.7 329.2 347.3 363.9 346.7 312.5 271.4 201.3 153.2 3254.2 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 884.2 881.2 880.1 878.9 877.1 875.5 875.8 878.1 880.3 882.8 883.1 884.7 880.2 MAX. QFE PRESSURE IN HPA 888.7 892.5 890.4 889.3 882.7 883.9 881.0 883.7 888.6 892.1 889.8 890.8 892.5 DAY-HOUR 17- 6 10- 6 1-21 1-21 11-18 2- 3 29- 6 5- 6 22- 6 10- 6 2- 6 18- 6 MIN. QFE PRESSURE IN HPA 878.1 866.5 867.5 870.8 868.4 869.9 868.4 869.6 873.3 875.6 873.2 877.5 866.5 DAY-HOUR 4-12 21-18 26- 0 12-21 30-12 7-12 18-12 27-12 5-15 31-12 17-12 5-12 MEAN QNH PRESSURE IN HPA 1022.5 1019.1 1017.8 1016.4 1014.5 1012.7 1013.0 1015.6 1018.1 1020.9 1021.2 1023.1 1017.9 MAX. QNH PRESSURE IN HPA 1027.5 1031.8 1029.4 1028.2 1020.8 1022.1 1018.9 1021.9 1027.4 1031.3 1028.8 1029.9 1031.8 DAY-HOUR 17- 6 10- 6 1-21 1-21 11-18 2- 3 29- 6 5- 6 22- 6 10- 6 2- 6 18- 6 MIN. QNH PRESSURE IN HPA 1015.6 1002.5 1003.7 1007.4 1004.7 1006.4 1004.7 1006.0 1010.2 1012.8 1010.1 1014.9 1002.5 DAY-HOUR 4-12 21-18 26- 0 12-21 30-12 7-12 18-12 27-12 5-15 31-12 17-12 5-12 MEAN QFF PRESSURE IN HPA 1026.3 1020.8 1016.4 1011.0 1006.3 1003.2 1003.2 1006.2 1011.1 1016.7 1019.9 1023.6 1013.7 MAX. QFF PRESSURE IN HPA 1037.0 1035.5 1031.4 1026.4 1013.6 1013.9 1011.4 1013.7 1024.5 1030.9 1030.8 1031.8 1037.0 DAY-HOUR 30- 3 10- 6 11-18 2- 3 1- 6 2- 3 30- 3 14- 3 22- 3 11- 3 20- 6 3-18 MIN. QFF PRESSURE IN HPA 1015.0 1001.3 998.4 999.3 995.4 995.6 994.7 995.4 1000.3 1008.3 1005.7 1013.5 994.7 DAY-HOUR 4-21 21-18 26- 0 13- 0 30-12 7-15 18-12 27-12 1- 0 31-12 19- 0 5-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 884.0 880.6 879.9 878.8 877.4 875.7 876.0 878.3 880.2 882.8 882.8 884.5 880.1 MAX. QFE PRESSURE IN HPA 887.4 891.6 889.2 889.3 880.6 881.6 880.8 882.4 886.5 890.9 887.7 889.4 891.6 DAY 26 10 2 2 19 2 30 6 22 11 3 10 MIN. QFE PRESSURE IN HPA 878.8 867.3 867.5 870.9 870.8 870.5 870.4 873.0 873.7 878.3 874.2 878.4 867.3 DAY 5 22 26 13 9 7 18 31 1 25 19 6 MEAN QNH PRESSURE IN HPA 1022.2 1018.5 1017.6 1016.4 1014.8 1012.9 1013.2 1015.8 1017.9 1020.9 1020.9 1022.8 1017.8 MAX. QNH PRESSURE IN HPA 1026.1 1030.8 1028.1 1028.2 1018.4 1019.5 1018.6 1020.4 1025.0 1030.0 1026.4 1028.3 1030.8 DAY 26 10 2 2 19 2 30 6 22 11 3 10 MIN. QNH PRESSURE IN HPA 1016.4 1003.4 1003.7 1007.5 1007.4 1007.0 1006.9 1009.9 1010.6 1015.8 1011.2 1015.9 1003.4 DAY 5 22 26 13 9 7 18 31 1 25 19 6 MEAN QFF PRESSURE IN HPA 1025.4 1019.7 1015.9 1010.7 1006.6 1003.4 1003.3 1006.3 1010.5 1016.1 1018.9 1022.9 1013.3 MAX. QFF PRESSURE IN HPA 1035.3 1033.5 1030.1 1025.1 1011.3 1010.9 1009.0 1012.6 1021.9 1027.7 1027.2 1029.5 1035.3 DAY 30 10 12 2 20 3 30 14 22 11 21 18 MIN. QFF PRESSURE IN HPA 1015.1 1002.5 998.4 999.3 999.0 996.8 996.8 999.3 1000.3 1009.4 1005.7 1013.6 996.8 DAY 5 22 26 13 30 7 18 31 1 20 19 21 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 884.2 881.1 880.6 879.6 878.2 876.7 877.0 879.2 881.1 883.4 883.2 884.6 880.7 MAX. QFE PRESSURE IN HPA 887.7 892.0 889.9 888.4 881.5 883.9 880.8 883.6 887.7 890.8 888.5 889.4 892.0 DAY 17 10 2 2 19 2 30 5 22 11 2 10 MIN. QFE PRESSURE IN HPA 879.4 868.9 868.7 871.4 871.4 871.3 870.0 873.2 874.6 878.7 874.1 878.7 868.7 DAY 5 22 26 13 9 18 18 31 1 31 19 5 MEAN QNH PRESSURE IN HPA 1022.5 1019.0 1018.4 1017.2 1015.7 1014.0 1014.4 1016.9 1019.0 1021.5 1021.3 1022.9 1018.6 MAX. QNH PRESSURE IN HPA 1026.4 1031.2 1028.9 1027.2 1019.4 1022.1 1018.6 1021.8 1026.4 1029.9 1027.3 1028.3 1031.2 DAY 17 10 2 2 19 2 30 5 22 11 2 10 MIN. QNH PRESSURE IN HPA 1017.1 1005.2 1005.0 1008.1 1008.1 1007.9 1006.5 1010.1 1011.7 1016.3 1011.1 1016.3 1005.0 DAY 5 22 26 13 9 18 18 31 1 31 19 5 MEAN QFF PRESSURE IN HPA 1027.2 1021.7 1017.8 1012.6 1007.9 1004.8 1005.1 1008.1 1012.9 1018.4 1020.9 1024.1 1015.1 MAX. QFF PRESSURE IN HPA 1037.0 1035.0 1031.0 1026.4 1013.4 1013.9 1011.4 1013.7 1024.5 1030.9 1029.2 1030.4 1037.0 DAY 30 10 12 2 1 2 30 14 22 11 20 18 MIN. QFF PRESSURE IN HPA 1018.6 1004.6 1002.2 1001.6 998.9 998.4 997.0 1000.3 1001.9 1012.1 1006.7 1014.7 997.0 DAY 5 21 26 13 30 7 18 31 1 25 19 21 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 885.2 882.3 881.3 880.3 878.5 876.7 877.1 879.6 881.8 884.3 884.3 885.9 881.4 MAX. QFE PRESSURE IN HPA 888.7 892.5 890.2 888.7 881.8 883.8 881.0 883.7 888.6 892.1 889.8 890.8 892.5 DAY 17 10 2 2 19 2 29 5 22 10 2 18 MIN. QFE PRESSURE IN HPA 881.2 869.8 869.8 873.7 871.4 871.6 870.9 873.5 875.6 878.4 875.5 878.7 869.8 DAY 20 21 26 13 30 18 18 27 1 31 19 5 MEAN QNH PRESSURE IN HPA 1023.6 1020.3 1019.2 1018.0 1016.1 1014.0 1014.4 1017.3 1019.8 1022.6 1022.5 1024.3 1019.3 MAX. QNH PRESSURE IN HPA 1027.5 1031.8 1029.2 1027.5 1019.8 1022.0 1018.9 1021.9 1027.4 1031.3 1028.8 1029.9 1031.8 DAY 17 10 2 2 19 2 29 5 22 10 2 18 MIN. QNH PRESSURE IN HPA 1019.1 1006.3 1006.3 1010.6 1008.1 1008.3 1007.5 1010.4 1012.8 1015.9 1012.7 1016.3 1006.3 DAY 20 21 26 13 30 18 18 27 1 31 19 5 MEAN QFF PRESSURE IN HPA 1027.8 1022.2 1017.8 1012.4 1007.9 1004.4 1004.6 1007.9 1012.7 1018.4 1021.3 1025.3 1015.2 MAX. QFF PRESSURE IN HPA 1035.5 1035.5 1030.6 1026.1 1013.6 1013.6 1010.3 1013.2 1023.9 1029.8 1030.8 1031.5 1035.5 DAY 30 10 12 2 1 2 30 14 22 11 20 18 MIN. QFF PRESSURE IN HPA 1020.2 1004.8 1002.9 1004.7 998.6 997.2 998.0 999.4 1002.9 1011.5 1008.8 1015.8 997.2 DAY 5 21 26 10 30 7 18 31 1 1 19 21 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 884.3 881.5 880.2 879.1 877.2 875.5 875.9 878.3 880.4 882.8 883.1 884.7 880.2 MAX. QFE PRESSURE IN HPA 887.3 891.8 888.8 887.5 880.5 883.1 880.2 882.9 887.1 890.9 889.0 888.9 891.8 DAY 17 9 1 2 1 2 29 5 22 10 2 18 MIN. QFE PRESSURE IN HPA 879.7 867.9 869.0 873.5 869.6 871.0 869.4 871.1 874.6 876.2 874.4 877.9 867.9 DAY 4 21 26 10 30 18 18 27 1 31 17 5 MEAN QNH PRESSURE IN HPA 1022.5 1019.5 1017.9 1016.7 1014.6 1012.6 1013.1 1015.8 1018.2 1020.8 1021.2 1023.0 1018.0 MAX. QNH PRESSURE IN HPA 1025.9 1031.0 1027.6 1026.2 1018.3 1021.2 1018.0 1021.0 1025.7 1030.0 1027.9 1027.7 1031.0 DAY 17 9 1 2 1 2 29 5 22 10 2 18 MIN. QNH PRESSURE IN HPA 1017.4 1004.1 1005.4 1010.4 1006.0 1007.6 1005.8 1007.7 1011.7 1013.5 1011.4 1015.4 1004.1 DAY 4 21 26 10 30 18 18 27 1 31 17 5 MEAN QFF PRESSURE IN HPA 1025.9 1020.6 1016.0 1010.9 1006.2 1002.8 1002.8 1006.0 1010.5 1015.8 1019.2 1023.1 1013.3 MAX. QFF PRESSURE IN HPA 1034.0 1033.2 1029.3 1023.6 1011.7 1012.9 1008.4 1012.0 1021.4 1026.7 1028.2 1030.4 1034.0 DAY 29 9 11 2 1 2 30 14 22 10 20 3 MIN. QFF PRESSURE IN HPA 1017.0 1001.4 1001.8 1003.6 996.3 996.6 995.5 996.7 1001.3 1008.3 1007.1 1015.0 995.5 DAY 4 21 26 10 30 7 18 27 1 31 17 21 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 883.3 880.4 878.9 877.5 875.7 874.2 874.6 876.8 879.1 881.7 882.3 884.1 879.1 MAX. QFE PRESSURE IN HPA 886.6 890.7 888.2 886.2 879.3 881.4 878.7 881.1 885.8 890.3 888.0 888.1 890.7 DAY 25 9 1 1 19 2 29 5 22 10 2 3 MIN. QFE PRESSURE IN HPA 878.1 867.7 869.4 871.5 868.4 869.9 868.4 869.6 873.4 875.6 873.2 877.5 867.7 DAY 4 21 26 10 30 7 18 27 5 31 17 5 MEAN QNH PRESSURE IN HPA 1021.5 1018.2 1016.5 1014.9 1012.9 1011.2 1011.6 1014.2 1016.7 1019.7 1020.3 1022.3 1016.7 MAX. QNH PRESSURE IN HPA 1025.2 1029.8 1027.0 1024.7 1016.9 1019.3 1016.3 1019.0 1024.3 1029.3 1026.7 1026.8 1029.8 DAY 25 9 1 1 19 2 29 5 22 10 2 3 MIN. QNH PRESSURE IN HPA 1015.6 1003.9 1005.8 1008.2 1004.7 1006.4 1004.7 1006.0 1010.3 1012.8 1010.1 1014.9 1003.9 DAY 4 21 26 10 30 7 18 27 5 31 17 5 MEAN QFF PRESSURE IN HPA 1024.7 1019.3 1014.7 1009.2 1004.8 1001.8 1001.8 1004.7 1009.4 1014.9 1018.4 1022.3 1012.2 MAX. QFF PRESSURE IN HPA 1033.6 1032.1 1029.1 1020.9 1010.0 1011.0 1007.1 1011.3 1020.4 1025.9 1027.6 1029.4 1033.6 DAY 29 9 11 1 19 2 31 14 22 10 20 3 MIN. QFF PRESSURE IN HPA 1015.5 1002.3 1001.2 1002.7 995.4 995.6 994.7 995.4 1001.1 1008.3 1006.0 1013.9 994.7 DAY 4 21 25 10 30 7 18 27 1 31 17 5 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 883.8 880.9 879.4 877.6 875.8 874.2 874.5 876.7 879.3 882.1 882.9 884.6 879.3 MAX. QFE PRESSURE IN HPA 887.1 891.6 888.6 886.9 878.9 880.9 878.2 880.5 885.2 891.1 888.6 888.8 891.6 DAY 29 9 1 1 19 2 27 5 22 10 2 3 MIN. QFE PRESSURE IN HPA 878.8 867.7 870.4 872.7 869.2 869.9 868.4 870.4 873.3 876.0 874.2 878.1 867.7 DAY 18 21 26 12 30 7 18 27 5 31 17 5 MEAN QNH PRESSURE IN HPA 1022.1 1018.7 1017.1 1015.1 1013.0 1011.2 1011.5 1014.0 1016.9 1020.1 1021.0 1022.9 1017.0 MAX. QNH PRESSURE IN HPA 1025.7 1030.8 1027.4 1025.5 1016.5 1018.7 1015.7 1018.3 1023.6 1030.2 1027.4 1027.6 1030.8 DAY 29 9 1 1 19 2 27 5 22 10 2 3 MIN. QNH PRESSURE IN HPA 1016.4 1003.9 1006.9 1009.5 1005.6 1006.4 1004.7 1006.9 1010.2 1013.2 1011.2 1015.6 1003.9 DAY 18 21 26 12 30 7 18 27 5 31 17 5 MEAN QFF PRESSURE IN HPA 1026.8 1021.2 1016.4 1010.4 1005.1 1002.0 1002.2 1005.2 1010.9 1016.9 1020.7 1024.0 1013.5 MAX. QFF PRESSURE IN HPA 1035.1 1034.3 1030.8 1024.3 1010.3 1011.1 1008.2 1010.7 1021.2 1030.0 1028.2 1031.0 1035.1 DAY 29 9 11 1 19 2 30 13 21 10 20 3 MIN. QFF PRESSURE IN HPA 1018.6 1002.5 1004.1 1004.2 995.6 995.6 995.3 997.0 1001.7 1009.5 1008.9 1015.8 995.3 DAY 4 21 24 26 30 7 18 31 5 31 17 5 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 884.5 881.5 880.3 879.0 877.1 875.6 875.8 877.8 880.4 882.9 883.5 885.1 880.3 MAX. QFE PRESSURE IN HPA 887.9 892.2 889.2 888.6 882.7 882.0 879.7 882.0 885.8 891.7 889.1 889.2 892.2 DAY 29 9 1 1 11 2 27 5 21 10 2 22 MIN. QFE PRESSURE IN HPA 878.8 866.5 870.7 872.4 871.9 870.5 870.3 872.6 874.7 875.9 875.4 878.1 866.5 DAY 4 21 25 12 30 6 18 31 5 31 17 5 MEAN QNH PRESSURE IN HPA 1022.8 1019.4 1018.0 1016.6 1014.5 1012.7 1013.0 1015.3 1018.2 1021.0 1021.7 1023.4 1018.1 MAX. QNH PRESSURE IN HPA 1026.6 1031.5 1028.1 1027.4 1020.8 1020.0 1017.4 1020.0 1024.3 1030.9 1028.0 1028.1 1031.5 DAY 29 9 1 1 11 2 27 5 21 10 2 22 MIN. QNH PRESSURE IN HPA 1016.4 1002.5 1007.3 1009.2 1008.6 1007.0 1006.8 1009.4 1011.8 1013.1 1012.6 1015.6 1002.5 DAY 4 21 25 12 30 6 18 31 5 31 17 5 MEAN QFF PRESSURE IN HPA 1027.0 1021.2 1016.6 1011.0 1006.3 1003.1 1003.1 1005.9 1011.2 1016.9 1020.5 1024.3 1013.9 MAX. QFF PRESSURE IN HPA 1036.0 1034.9 1031.4 1025.6 1012.6 1012.4 1008.3 1011.6 1021.0 1029.2 1028.9 1031.8 1036.0 DAY 29 9 11 1 11 2 30 14 21 10 20 3 MIN. QFF PRESSURE IN HPA 1016.7 1001.3 1001.7 1003.7 997.4 995.8 997.4 998.9 1002.0 1009.2 1008.6 1014.7 995.8 DAY 4 21 25 26 30 7 11 31 5 31 17 5 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 884.4 881.3 880.3 879.1 877.2 875.8 876.0 878.1 880.5 882.9 883.2 884.7 880.3 MAX. QFE PRESSURE IN HPA 887.9 892.2 890.4 889.3 880.7 881.9 880.5 882.2 885.4 891.0 888.4 889.4 892.2 DAY 25 9 1 1 19 2 29 4 21 10 2 22 MIN. QFE PRESSURE IN HPA 879.2 868.2 870.3 870.8 871.4 871.1 870.3 873.0 874.7 876.8 875.0 877.9 868.2 DAY 4 21 25 12 8 6 18 30 5 31 18 5 MEAN QNH PRESSURE IN HPA 1022.7 1019.2 1018.0 1016.7 1014.6 1013.1 1013.2 1015.5 1018.3 1021.0 1021.3 1023.0 1018.0 MAX. QNH PRESSURE IN HPA 1026.6 1031.5 1029.4 1028.2 1018.5 1019.9 1018.3 1020.2 1023.8 1030.1 1027.2 1028.3 1031.5 DAY 25 9 1 1 19 2 29 4 21 10 2 22 MIN. QNH PRESSURE IN HPA 1016.8 1004.5 1006.8 1007.4 1008.1 1007.7 1006.8 1009.9 1011.8 1014.1 1012.1 1015.4 1004.5 DAY 4 21 25 12 8 6 18 30 5 31 18 5 MEAN QFF PRESSURE IN HPA 1026.1 1020.2 1015.9 1010.7 1006.0 1003.1 1003.0 1005.7 1010.5 1016.1 1019.4 1023.1 1013.3 MAX. QFF PRESSURE IN HPA 1035.3 1034.2 1030.9 1025.4 1011.1 1011.7 1008.8 1011.9 1019.9 1028.0 1027.9 1031.1 1035.3 DAY 29 9 11 1 19 2 29 14 21 10 20 22 MIN. QFF PRESSURE IN HPA 1015.0 1001.9 1001.2 1000.6 998.7 995.6 996.8 998.7 1001.4 1009.4 1006.5 1013.5 995.6 DAY 4 21 25 12 30 7 18 31 5 31 18 5 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.0 5.0 10.0 14.1 19.6 25.6 26.3 26.6 21.8 17.9 8.5 1.4 15.0 MINIMUN AIR TEMPERATURE (C) -1.4 -0.3 3.0 8.1 11.7 16.7 16.5 16.4 10.9 8.8 2.5 -3.0 7.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 4 1 1 0 0 0 0 6 DAYS WITH MINIMUM TEMP. <=-4 10 3 1 0 0 0 0 0 0 0 0 11 25 DAYS WITH FREEZING MIN.<= 0 19 16 10 0 0 0 0 0 0 0 11 25 81 TEMPERATURE RECORDS LOWEST(C) -7.8 -8.6 -4.2 2.0 5.4 11.4 12.4 10.2 5.6 3.8 -2.4 -11.0 -11.0 DAY 19 6 1 1 2 9 24 15 9 21 19 4 MAXIMUM AIR TEMPERATURE (C) 8.6 11.2 17.7 20.9 27.5 33.3 33.6 35.2 31.7 27.5 15.9 7.2 22.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 10 24 30 30 22 11 0 0 129 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.0 19.8 27.6 30.0 36.4 38.8 39.2 40.0 37.0 33.2 23.0 14.6 40.0 DAY 4 13 28 19 30 20 19 10 12 5 1 13 DIF. BETWEEN (MAX.-MIN.) (C) 10.0 11.5 14.7 12.8 15.8 16.6 17.1 18.8 20.8 18.7 13.4 10.2 15.0 MEAN DAILY TEMP. (MDT) (C) 3.6 5.4 10.4 14.5 19.6 25.0 25.1 25.8 21.3 18.2 9.2 2.1 15.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 2.7 27.3 121.1 125.9 149.2 31.4 4.6 0.0 0.0 462.2 HEATING DEG. DAYS(BASE 18 0C) 446.0 351.8 236.9 116.7 22.7 0.0 0.0 0.0 0.7 31.0 264.2 493.0 1963.0 DEWPOINT (MEAN C) -1.7 -1.2 -0.7 6.2 6.5 4.4 4.9 3.5 -1.3 2.3 1.0 -3.3 1.7 MIXING RATIO (G/KG) 3.92 4.07 4.36 6.94 7.10 6.20 6.39 5.87 4.17 5.30 4.83 3.64 5.23 VAPOUR PRESSURE (HPA) 5.52 5.73 6.12 9.68 9.90 8.63 8.92 8.19 5.86 7.46 6.81 5.13 7.33 SATURATION DEF. (HPA) 2.64 3.60 7.41 7.43 14.61 26.03 26.75 28.64 22.21 14.74 5.05 1.96 13.42 RELATIVE HUMIDITY (MEAN %) 74 69 55 64 49 29 28 26 25 39 64 75 50 RELATIVE HUMIDITY (MAX. %) 91 89 81 88 75 48 44 42 42 60 86 90 70 RELATIVE HUMIDITY (MIN. %) 51 45 29 38 25 15 17 13 12 20 38 51 30 RELATIVE HUMIDITY (MEAN% 03UTC) 84 87 75 84 66 41 40 39 40 57 82 85 65 RELATIVE HUMIDITY (MEAN% 09UTC) 58 53 36 43 31 18 19 16 14 24 43 61 35 RELATIVE HUMIDITY (MEAN% 15UTC) 70 62 43 55 39 20 20 18 17 33 60 78 43 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 36.3 20.4 34.8 41.0 17.3 0.1 0.5 0.0 0.0 6.3 15.3 20.8 192.8 DAYS WITH PRECIPITATION >=10 2 0 1 2 1 0 0 0 0 0 0 0 6 DAYS WITH PRECIPITATION >= 5 3 1 4 5 1 0 0 0 0 1 2 1 18 DAYS WITH PRECIPITATION >= 1 5 6 6 6 3 0 0 0 0 1 4 7 38 DAYS WITH PRECIPITATION 9 9 11 16 9 3 2 1 0 2 6 12 80 GREATEST DAILY PRECIPITATION 14.0 7.8 10.5 11.0 11.0 0.1 0.4 0.0 0.0 6.3 6.0 5.0 14.0 DAY 8 20 29 21 4 30 2 ** ** 15 14 11 DAY WITH THUNDER STORM 0 0 4 5 4 2 0 0 0 1 0 0 16 DAYS WITH SNOW OR SLEET 4 5 1 0 0 0 0 0 0 0 0 8 18 DAYS WITH DUST 0 1 1 2 1 4 1 1 0 3 1 0 15 WIND DIRECTION (PREVAILING) 90 270 90 270 90 90 90 90 90 90 90 225 90 PREVAILING WIND SPEED(KNOTS) 10.0 8.7 8.5 9.6 8.4 8.8 9.3 8.3 7.1 9.7 8.4 8.5 8.3 PREVAILING WIND PERCENT 2.0 8.9 7.3 6.3 14.1 13.3 8.9 19.4 14.6 2.4 2.1 3.2 7.5 CALMS PERCENT OF WIND 93.1 79.0 74.6 77.9 66.9 70.0 77.8 73.4 80.8 93.1 93.8 91.1 81.0 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 82 239 153 249 125 93 83 89 89 80 80 241 111 VECTOR WIND MAGNITUDE(KNOTS) 0.1 0.9 0.3 0.5 0.5 0.4 0.8 1.5 1.0 0.2 0.2 0.4 0.3 WIND STEADINESES (MEAN %) 20.0 56.3 15.0 27.8 17.9 15.4 44.4 75.0 76.9 40.0 50.0 57.1 20.0 WIND SPEED (MEAN KNOTS) 0.5 1.6 2.0 1.8 2.8 2.6 1.8 2.0 1.3 0.5 0.4 0.7 1.5 FASTEST WIND DIRECTION 90 260 150 210 240 110 340 110 80 90 70 100 240 FASTEST WIND SPEED (KNOTS) 14 17 19 19 23 23 17 17 14 16 12 12 23 DAY 5 28 21 13 4 2 20 25 2 15 3 3 DAYS WITH SKY CLEAR (0-2)/8 11 10 14 3 18 22 26 31 30 23 14 9 211 DAYS WITH P.CLOUDY (3-6)/8 12 9 10 17 13 8 5 0 0 8 9 8 99 DAYS WITH CLOUDY (7-8)/8 8 9 7 10 0 0 0 0 0 0 7 14 55 DAYS WITH VISIBILITY =< 2 KM 1 2 2 0 0 0 0 0 0 0 2 6 13 DURATION OF SUNSHINE HOURS 160.2 180.3 227.2 215.3 325.7 346.7 374.2 364.6 331.7 280.3 197.2 130.3 3133.7 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 882.7 881.5 880.4 877.7 878.1 876.0 877.4 876.5 881.2 883.3 884.9 882.9 880.2 MAX. QFE PRESSURE IN HPA 890.3 889.9 894.2 887.4 884.6 883.7 883.3 883.4 886.8 888.7 893.3 893.7 894.2 DAY-HOUR 26- 6 6- 6 11- 6 1- 6 17- 6 25- 3 3- 3 30- 6 30- 6 10- 6 18- 6 3-18 MIN. QFE PRESSURE IN HPA 873.2 872.4 870.9 865.6 871.8 865.6 870.7 870.0 876.1 878.1 876.7 870.2 865.6 DAY-HOUR 8-12 25-12 28-18 4-12 12-15 21-12 24-15 17-12 18-12 22-12 12-12 22- 3 MEAN QNH PRESSURE IN HPA 1020.8 1019.4 1018.1 1015.1 1015.6 1013.2 1014.8 1013.8 1019.1 1021.4 1023.3 1021.0 1018.0 MAX. QNH PRESSURE IN HPA 1029.3 1028.9 1033.7 1026.1 1022.9 1021.9 1021.4 1021.6 1025.4 1027.5 1032.7 1033.1 1033.7 DAY-HOUR 26- 6 6- 6 11- 6 1- 6 17- 6 25- 3 3- 3 30- 6 30- 6 10- 6 18- 6 3-18 MIN. QNH PRESSURE IN HPA 1010.1 1009.2 1007.5 1001.5 1008.5 1001.5 1007.3 1006.5 1013.3 1015.6 1014.0 1006.7 1001.5 DAY-HOUR 8-12 25-12 28-18 4-12 12-15 21-12 24-15 17-12 18-12 22-12 12-12 22- 3 MEAN QFF PRESSURE IN HPA 1023.0 1020.5 1016.6 1011.2 1009.1 1003.9 1005.2 1004.1 1011.8 1015.9 1022.5 1024.1 1014.0 MAX. QFF PRESSURE IN HPA 1033.7 1033.9 1037.5 1025.0 1019.3 1014.3 1013.5 1012.7 1020.3 1021.6 1034.3 1041.5 1041.5 DAY-HOUR 26- 6 6- 3 11- 6 1- 6 18- 3 25- 3 3- 3 31- 6 30- 3 26- 3 19- 3 4- 3 MIN. QFF PRESSURE IN HPA 1006.6 1007.3 1000.6 998.4 999.3 989.8 997.3 996.7 1005.1 1009.7 1009.2 1005.3 989.8 DAY-HOUR 8-12 27- 0 28-21 4-12 30-12 21-12 25-12 17-12 18-12 22-12 13- 0 22- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 882.4 880.9 879.9 877.4 878.1 876.1 877.2 876.7 881.0 883.2 884.7 882.5 880.0 MAX. QFE PRESSURE IN HPA 888.7 888.9 890.7 885.0 883.2 882.9 881.4 880.4 885.1 887.3 891.7 893.6 893.6 DAY 26 19 11 1 18 25 3 30 30 11 18 4 MIN. QFE PRESSURE IN HPA 876.0 873.1 872.3 866.3 873.3 867.2 871.8 871.8 876.8 878.8 876.9 870.5 866.3 DAY 8 26 23 4 30 21 25 17 18 22 13 22 MEAN QNH PRESSURE IN HPA 1020.5 1018.8 1017.6 1014.8 1015.5 1013.3 1014.6 1014.0 1018.9 1021.4 1023.1 1020.6 1017.7 MAX. QNH PRESSURE IN HPA 1027.5 1027.7 1029.8 1023.4 1021.3 1021.0 1019.3 1018.2 1023.5 1025.9 1030.9 1033.0 1033.0 DAY 26 19 11 1 18 25 3 30 30 11 18 4 MIN. QNH PRESSURE IN HPA 1013.2 1010.0 1009.1 1002.3 1010.2 1003.3 1008.5 1008.5 1014.1 1016.4 1014.2 1007.0 1002.3 DAY 8 26 23 4 30 21 25 17 18 22 13 22 MEAN QFF PRESSURE IN HPA 1022.1 1019.4 1015.8 1010.8 1009.0 1004.1 1005.1 1004.2 1011.3 1015.5 1021.8 1023.2 1013.5 MAX. QFF PRESSURE IN HPA 1030.3 1031.9 1033.8 1022.1 1017.2 1013.2 1010.7 1008.4 1017.7 1019.1 1032.4 1040.6 1040.6 DAY 26 6 11 1 18 25 3 25 30 26 18 4 MIN. QFF PRESSURE IN HPA 1009.7 1007.3 1002.4 999.0 1001.0 991.5 999.1 997.2 1006.3 1010.7 1009.2 1005.3 991.5 DAY 8 27 29 4 30 21 25 18 14 22 13 22 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 882.6 881.4 880.5 878.0 878.7 877.1 878.3 877.5 881.9 883.9 885.2 882.7 880.6 MAX. QFE PRESSURE IN HPA 889.0 889.7 893.0 886.0 884.0 883.7 883.3 882.0 886.2 887.7 892.2 893.0 893.0 DAY 26 19 11 1 17 25 3 31 30 10 18 4 MIN. QFE PRESSURE IN HPA 875.2 874.1 872.0 867.2 873.7 868.3 872.2 872.7 877.7 879.5 877.3 870.2 867.2 DAY 8 27 23 4 30 21 25 17 18 22 13 22 MEAN QNH PRESSURE IN HPA 1020.7 1019.3 1018.3 1015.5 1016.3 1014.4 1015.8 1014.9 1019.9 1022.1 1023.6 1020.8 1018.5 MAX. QNH PRESSURE IN HPA 1027.9 1028.6 1032.4 1024.5 1022.2 1021.9 1021.4 1020.0 1024.7 1026.4 1031.5 1032.4 1032.4 DAY 26 19 11 1 17 25 3 31 30 10 18 4 MIN. QNH PRESSURE IN HPA 1012.3 1011.1 1008.7 1003.3 1010.6 1004.6 1009.0 1009.5 1015.1 1017.2 1014.7 1006.7 1003.3 DAY 8 27 23 4 30 21 25 17 18 22 13 22 MEAN QFF PRESSURE IN HPA 1023.5 1021.3 1017.5 1012.2 1010.2 1005.2 1006.5 1005.8 1013.8 1017.8 1024.0 1024.7 1015.2 MAX. QFF PRESSURE IN HPA 1032.6 1033.9 1037.0 1024.9 1019.3 1014.3 1013.5 1011.7 1020.3 1021.6 1034.3 1041.5 1041.5 DAY 26 6 11 1 18 25 3 31 30 26 19 4 MIN. QFF PRESSURE IN HPA 1009.1 1009.5 1006.0 1000.5 1000.4 993.4 999.2 999.4 1008.7 1013.8 1011.5 1005.5 993.4 DAY 8 27 29 4 30 21 25 18 18 22 13 22 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 883.9 882.6 881.7 878.7 879.0 877.3 878.7 878.1 882.6 884.7 886.1 884.0 881.5 MAX. QFE PRESSURE IN HPA 890.3 889.9 894.2 887.4 884.6 883.0 883.2 883.4 886.8 888.7 893.3 893.7 894.2 DAY 26 6 11 1 17 25 3 30 30 10 18 4 MIN. QFE PRESSURE IN HPA 875.5 875.8 872.8 867.1 874.1 868.4 873.2 873.0 878.3 880.4 878.4 871.7 867.1 DAY 8 27 23 4 30 21 25 17 18 22 12 22 MEAN QNH PRESSURE IN HPA 1022.1 1020.7 1019.6 1016.3 1016.6 1014.6 1016.3 1015.6 1020.7 1023.0 1024.6 1022.2 1019.4 MAX. QNH PRESSURE IN HPA 1029.3 1028.9 1033.7 1026.1 1022.9 1021.1 1021.3 1021.6 1025.4 1027.5 1032.7 1033.1 1033.7 DAY 26 6 11 1 17 25 3 30 30 10 18 4 MIN. QNH PRESSURE IN HPA 1012.7 1013.0 1009.6 1003.2 1011.1 1004.7 1010.1 1009.9 1015.8 1018.2 1015.9 1008.4 1003.2 DAY 8 27 23 4 30 21 25 17 18 22 12 22 MEAN QFF PRESSURE IN HPA 1024.6 1021.9 1018.3 1012.4 1010.1 1005.3 1006.4 1005.8 1013.3 1017.4 1023.9 1025.6 1015.4 MAX. QFF PRESSURE IN HPA 1033.7 1033.3 1037.5 1025.0 1018.0 1012.8 1013.1 1012.7 1019.4 1020.6 1033.9 1041.3 1041.3 DAY 26 6 11 1 18 25 3 31 30 10 18 4 MIN. QFF PRESSURE IN HPA 1009.8 1010.3 1006.8 1000.0 1001.2 993.0 1000.0 999.3 1008.1 1012.8 1012.8 1006.6 993.0 DAY 8 27 28 4 30 21 25 18 18 22 13 22 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 882.7 881.7 880.6 877.8 878.1 876.1 877.6 876.6 881.4 883.1 884.8 882.8 880.3 MAX. QFE PRESSURE IN HPA 889.3 889.0 892.0 886.8 883.6 882.7 882.2 881.2 885.6 887.6 892.4 892.4 892.4 DAY 26 6 11 1 17 25 3 31 21 10 18 4 MIN. QFE PRESSURE IN HPA 874.1 875.0 872.7 866.5 873.3 866.9 872.2 871.3 877.3 878.8 877.4 871.9 866.5 DAY 8 27 28 4 30 21 24 17 18 22 12 22 MEAN QNH PRESSURE IN HPA 1020.7 1019.7 1018.4 1015.2 1015.5 1013.4 1015.1 1013.9 1019.3 1021.3 1023.1 1020.9 1018.0 MAX. QNH PRESSURE IN HPA 1028.2 1027.9 1031.2 1025.4 1021.8 1020.8 1020.2 1019.1 1024.0 1026.3 1031.7 1031.7 1031.7 DAY 26 6 11 1 17 25 3 31 21 10 18 4 MIN. QNH PRESSURE IN HPA 1011.1 1012.1 1009.5 1002.5 1010.2 1003.0 1009.0 1007.9 1014.7 1016.4 1014.8 1008.6 1002.5 DAY 8 27 28 4 30 21 24 17 18 22 12 22 MEAN QFF PRESSURE IN HPA 1022.4 1020.5 1016.5 1011.0 1008.7 1003.8 1005.2 1003.6 1011.1 1014.9 1021.6 1023.5 1013.6 MAX. QFF PRESSURE IN HPA 1031.4 1032.0 1034.2 1023.4 1016.4 1012.2 1011.5 1010.0 1017.3 1018.2 1032.8 1038.4 1038.4 DAY 26 6 11 1 17 25 3 31 30 10 18 4 MIN. QFF PRESSURE IN HPA 1008.1 1009.2 1003.4 998.9 1000.2 990.7 998.6 997.7 1006.0 1010.2 1011.1 1007.6 990.7 DAY 8 26 28 4 30 21 25 17 18 22 13 22 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 881.9 880.6 879.4 876.9 877.0 874.8 876.3 875.1 880.0 882.1 883.9 882.3 879.2 MAX. QFE PRESSURE IN HPA 887.8 887.9 889.9 885.7 882.2 881.2 880.9 879.4 883.8 886.4 891.6 892.1 892.1 DAY 26 6 11 1 17 25 3 31 21 10 18 3 MIN. QFE PRESSURE IN HPA 873.2 872.4 871.5 865.6 871.9 865.6 870.9 870.0 876.1 878.1 876.7 872.1 865.6 DAY 8 25 28 4 12 21 25 17 18 22 12 22 MEAN QNH PRESSURE IN HPA 1019.9 1018.4 1017.1 1014.2 1014.4 1011.9 1013.6 1012.3 1017.8 1020.1 1022.1 1020.3 1016.8 MAX. QNH PRESSURE IN HPA 1026.5 1026.6 1028.9 1024.1 1020.2 1019.1 1018.7 1017.1 1022.0 1024.9 1030.8 1031.3 1031.3 DAY 26 6 11 1 17 25 3 31 21 10 18 3 MIN. QNH PRESSURE IN HPA 1010.1 1009.2 1008.2 1001.5 1008.6 1001.5 1007.5 1006.5 1013.3 1015.6 1014.0 1008.8 1001.5 DAY 8 25 28 4 12 21 25 17 18 22 12 22 MEAN QFF PRESSURE IN HPA 1021.6 1019.0 1015.3 1010.2 1007.8 1002.7 1004.2 1002.5 1010.3 1014.2 1020.9 1023.0 1012.6 MAX. QFF PRESSURE IN HPA 1029.9 1031.1 1031.1 1022.2 1014.8 1010.9 1010.1 1007.5 1016.7 1017.9 1031.6 1036.8 1036.8 DAY 27 6 11 1 17 24 3 31 30 18 18 4 MIN. QFF PRESSURE IN HPA 1006.6 1007.6 1003.0 998.4 999.3 989.8 997.3 996.7 1005.1 1009.7 1010.5 1009.3 989.8 DAY 8 25 28 4 30 21 25 17 18 22 12 22 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 882.8 881.3 879.9 877.1 877.1 874.7 876.2 875.3 880.3 882.5 884.6 883.0 879.6 MAX. QFE PRESSURE IN HPA 888.3 888.1 891.8 885.2 882.6 880.7 880.4 879.4 884.3 887.0 891.8 893.1 893.1 DAY 26 6 10 1 17 24 3 31 30 10 18 3 MIN. QFE PRESSURE IN HPA 876.2 872.7 871.2 867.7 871.8 865.7 870.7 870.2 876.8 878.5 877.6 873.0 865.7 DAY 8 25 28 4 12 20 24 17 18 21 12 21 MEAN QNH PRESSURE IN HPA 1020.9 1019.2 1017.7 1014.5 1014.5 1011.7 1013.5 1012.4 1018.0 1020.6 1022.9 1021.1 1017.2 MAX. QNH PRESSURE IN HPA 1027.1 1026.8 1031.0 1023.6 1020.7 1018.5 1018.2 1017.1 1022.6 1025.6 1031.0 1032.5 1032.5 DAY 26 6 10 1 17 24 3 31 30 10 18 3 MIN. QNH PRESSURE IN HPA 1013.5 1009.5 1007.8 1003.9 1008.5 1001.6 1007.3 1006.7 1014.1 1016.0 1015.0 1009.9 1001.6 DAY 8 25 28 4 12 20 24 17 18 21 12 21 MEAN QFF PRESSURE IN HPA 1023.7 1021.1 1016.8 1011.1 1008.3 1002.6 1004.1 1003.3 1011.9 1016.3 1023.4 1025.0 1014.0 MAX. QFF PRESSURE IN HPA 1032.1 1032.8 1033.8 1022.5 1016.5 1010.8 1009.8 1009.2 1018.6 1020.1 1033.5 1039.5 1039.5 DAY 27 6 10 1 17 24 3 31 30 26 18 4 MIN. QFF PRESSURE IN HPA 1010.6 1008.6 1003.0 1001.7 1000.1 990.4 997.8 997.3 1007.2 1011.6 1013.1 1011.9 990.4 DAY 8 25 28 3 12 20 25 17 13 12 12 21 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 883.0 882.0 880.5 878.0 878.4 876.0 877.4 876.5 881.2 883.3 885.3 883.4 880.4 MAX. QFE PRESSURE IN HPA 888.8 888.2 893.0 885.8 884.0 882.5 881.4 881.0 885.2 887.5 892.0 893.7 893.7 DAY 27 6 10 1 17 24 3 31 29 10 18 3 MIN. QFE PRESSURE IN HPA 876.7 873.0 870.9 868.6 873.3 866.8 871.7 871.7 877.7 878.8 878.0 872.0 866.8 DAY 8 25 28 3 12 20 24 17 10 21 12 21 MEAN QNH PRESSURE IN HPA 1021.1 1019.9 1018.3 1015.5 1016.0 1013.2 1014.8 1013.8 1019.1 1021.5 1023.7 1021.5 1018.2 MAX. QNH PRESSURE IN HPA 1027.6 1027.0 1032.4 1024.3 1022.2 1020.5 1019.3 1018.9 1023.6 1026.2 1031.2 1033.1 1033.1 DAY 27 6 10 1 17 24 3 31 29 10 18 3 MIN. QNH PRESSURE IN HPA 1014.0 1009.9 1007.5 1004.9 1010.2 1002.9 1008.4 1008.4 1015.1 1016.4 1015.5 1008.7 1002.9 DAY 8 25 28 3 12 20 24 17 10 21 12 21 MEAN QFF PRESSURE IN HPA 1023.6 1021.2 1016.9 1011.6 1009.3 1003.9 1004.9 1004.0 1011.8 1015.9 1023.0 1024.9 1014.3 MAX. QFF PRESSURE IN HPA 1031.8 1031.9 1035.0 1022.6 1018.2 1012.6 1010.9 1010.8 1018.4 1019.0 1032.5 1040.8 1040.8 DAY 17 6 10 1 17 24 2 31 30 31 18 3 MIN. QFF PRESSURE IN HPA 1011.4 1007.7 1000.9 1001.4 1000.4 990.4 998.1 997.6 1007.6 1011.7 1012.6 1009.2 990.4 DAY 8 25 28 3 11 20 25 8 17 12 12 21 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 882.6 881.5 880.4 877.8 878.5 876.0 877.5 876.7 881.2 883.3 884.9 882.8 880.3 MAX. QFE PRESSURE IN HPA 888.6 888.7 892.7 885.5 883.9 883.1 881.7 881.3 885.4 887.4 891.7 893.6 893.6 DAY 27 18 10 1 17 24 2 31 29 10 18 3 MIN. QFE PRESSURE IN HPA 876.4 873.6 871.8 866.1 873.3 867.3 871.5 871.7 877.2 878.8 877.5 871.5 866.1 DAY 7 25 22 3 29 20 24 17 17 21 12 21 MEAN QNH PRESSURE IN HPA 1020.7 1019.5 1018.2 1015.3 1016.1 1013.3 1014.9 1014.1 1019.1 1021.5 1023.3 1020.9 1018.1 MAX. QNH PRESSURE IN HPA 1027.4 1027.5 1032.0 1023.9 1022.1 1021.2 1019.6 1019.2 1023.8 1026.1 1030.9 1033.0 1033.0 DAY 27 18 10 1 17 24 2 31 29 10 18 3 MIN. QNH PRESSURE IN HPA 1013.7 1010.5 1008.5 1002.1 1010.2 1003.4 1008.2 1008.4 1014.6 1016.4 1014.9 1008.2 1002.1 DAY 7 25 22 3 29 20 24 17 17 21 12 21 MEAN QFF PRESSURE IN HPA 1022.4 1020.2 1016.2 1010.9 1009.1 1003.6 1005.0 1003.8 1010.9 1015.1 1021.9 1023.5 1013.6 MAX. QFF PRESSURE IN HPA 1030.7 1030.5 1035.2 1021.5 1017.5 1013.1 1010.8 1010.7 1017.5 1018.3 1032.2 1040.2 1040.2 DAY 27 5 10 1 17 24 2 31 30 10 18 3 MIN. QFF PRESSURE IN HPA 1010.2 1008.0 1000.6 998.6 1000.9 990.9 998.0 997.3 1006.4 1010.6 1010.2 1007.4 990.9 DAY 7 27 28 3 29 20 24 8 17 21 12 21 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.1 5.1 8.1 14.3 16.5 23.6 28.0 25.4 20.5 16.8 7.1 2.2 14.1 MINIMUN AIR TEMPERATURE (C) -2.9 0.3 2.2 8.4 8.7 14.6 18.3 15.2 10.6 7.7 1.0 -2.4 6.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 4 1 0 0 0 0 5 DAYS WITH MINIMUM TEMP. <=-4 8 2 4 0 0 0 0 0 0 0 5 10 29 DAYS WITH FREEZING MIN.<= 0 27 14 10 2 1 0 0 0 0 0 13 23 90 TEMPERATURE RECORDS LOWEST(C) -13.2 -5.4 -8.2 0.0 0.0 8.4 14.0 10.8 0.8 2.6 -5.6 -13.0 -13.2 DAY 22 18 3 18 2 7 6 31 28 14 24 13 MAXIMUM AIR TEMPERATURE (C) 8.7 10.8 14.7 21.5 24.0 31.8 36.2 33.3 29.3 26.8 14.8 8.2 21.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 5 2 23 31 31 17 2 0 0 111 DAYS WITH MAXIMUM TEMP. <= 0 1 0 0 0 0 0 0 0 0 0 0 2 3 TEMPERATURE RECORDS HIGHEST(C) 15.4 18.0 22.6 31.6 30.2 36.6 41.0 36.0 36.0 31.6 27.0 17.4 41.0 DAY 14 10 21 8 31 23 18 15 19 4 1 20 DIF. BETWEEN (MAX.-MIN.) (C) 11.6 10.5 12.5 13.1 15.3 17.2 17.9 18.1 18.7 19.1 13.8 10.6 14.9 MEAN DAILY TEMP. (MDT) (C) 2.9 5.6 8.5 15.0 16.4 23.2 27.3 24.3 20.0 17.2 7.9 2.9 14.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 5.1 1.7 75.5 193.9 101.1 27.8 1.0 0.0 0.0 406.1 HEATING DEG. DAYS(BASE 18 0C) 469.0 348.0 295.4 119.9 77.3 1.4 0.0 0.0 27.5 45.4 304.3 468.0 2156.2 DEWPOINT (MEAN C) -3.5 -1.1 -0.0 6.3 5.8 6.6 7.7 4.8 2.4 -0.9 -1.7 -2.4 2.0 MIXING RATIO (G/KG) 3.42 4.12 4.57 7.10 6.75 7.14 7.76 6.34 5.47 4.26 3.95 3.83 5.39 VAPOUR PRESSURE (HPA) 4.82 5.78 6.40 9.92 9.45 9.94 10.77 8.86 7.67 6.00 5.57 5.42 7.55 SATURATION DEF. (HPA) 2.71 3.44 5.25 7.99 10.66 20.75 28.75 24.98 18.41 14.62 5.42 2.29 12.11 RELATIVE HUMIDITY (MEAN %) 71 69 62 65 54 38 31 29 34 34 59 74 52 RELATIVE HUMIDITY (MAX. %) 88 89 88 87 82 62 47 46 54 56 80 89 72 RELATIVE HUMIDITY (MIN. %) 47 44 36 40 30 19 17 17 18 17 34 51 31 RELATIVE HUMIDITY (MEAN% 03UTC) 84 85 82 83 70 53 44 43 52 52 73 84 67 RELATIVE HUMIDITY (MEAN% 09UTC) 56 53 44 46 35 23 20 20 22 19 38 57 36 RELATIVE HUMIDITY (MEAN% 15UTC) 69 62 52 57 40 28 22 20 24 27 54 75 44 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 53.3 21.7 40.8 71.5 13.4 9.0 0.0 0.0 0.0 0.0 17.7 13.2 240.6 DAYS WITH PRECIPITATION >=10 3 0 1 2 0 0 0 0 0 0 1 0 7 DAYS WITH PRECIPITATION >= 5 3 2 3 6 1 1 0 0 0 0 1 1 18 DAYS WITH PRECIPITATION >= 1 4 7 8 7 5 1 0 0 0 0 2 4 38 DAYS WITH PRECIPITATION 6 13 11 9 12 2 0 1 0 3 7 11 75 GREATEST DAILY PRECIPITATION 24.0 6.0 18.2 23.0 7.7 9.0 0.0 0.0 0.0 0.0 15.0 5.0 24.0 DAY 20 14 27 18 9 16 ** ** ** ** 15 4 DAY WITH THUNDER STORM 0 2 4 6 7 2 0 0 0 1 1 1 24 DAYS WITH SNOW OR SLEET 5 3 1 1 0 0 0 0 0 0 1 3 14 DAYS WITH DUST 0 1 4 3 2 2 2 0 3 0 0 0 17 WIND DIRECTION (PREVAILING) 45 270 270 90 270 90 90 90 90 90 225 45 90 PREVAILING WIND SPEED(KNOTS) 8.5 7.9 9.0 7.0 6.9 9.8 10.2 9.6 9.1 6.0 9.0 5.5 8.9 PREVAILING WIND PERCENT 1.6 8.5 8.1 7.1 8.9 16.3 25.4 11.3 12.5 3.2 3.3 1.6 8.3 CALMS PERCENT OF WIND 93.1 76.3 64.1 78.8 73.0 67.1 65.3 77.4 82.5 89.9 90.4 93.5 79.3 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 19 266 210 159 244 98 96 96 94 125 258 98 107 VECTOR WIND MAGNITUDE(KNOTS) 0.1 0.5 0.4 0.3 0.3 0.9 2.7 1.1 0.9 0.1 0.6 0.1 0.4 WIND STEADINESES (MEAN %) 25.0 31.3 13.8 18.8 15.8 31.0 81.8 61.1 60.0 14.3 75.0 20.0 23.5 WIND SPEED (MEAN KNOTS) 0.4 1.6 2.9 1.6 1.9 2.9 3.3 1.8 1.5 0.7 0.8 0.5 1.7 FASTEST WIND DIRECTION 60 260 260 240 170 80 90 100 100 270 280 100 80 FASTEST WIND SPEED (KNOTS) 12 19 19 23 19 29 19 19 19 16 19 12 29 DAY 15 21 2 12 23 19 31 7 14 5 14 11 DAYS WITH SKY CLEAR (0-2)/8 12 5 8 4 14 22 29 28 29 23 16 13 203 DAYS WITH P.CLOUDY (3-6)/8 7 15 15 15 14 7 2 3 1 8 5 12 104 DAYS WITH CLOUDY (7-8)/8 12 8 8 11 3 1 0 0 0 0 9 6 58 DAYS WITH VISIBILITY =< 2 KM 3 3 1 1 1 0 0 0 0 0 2 2 13 DURATION OF SUNSHINE HOURS 147.5 166.2 200.1 204.1 292.8 344.1 368.2 368.0 330.0 288.1 197.8 163.6 3070.5 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 882.6 878.8 879.7 880.1 880.9 876.6 874.5 878.3 880.4 882.5 884.7 885.6 880.4 MAX. QFE PRESSURE IN HPA 888.9 887.9 890.6 886.1 889.6 882.5 880.8 882.5 889.0 888.4 895.0 895.1 895.1 DAY-HOUR 12- 6 12-21 3- 6 30- 6 2- 6 7- 3 4- 3 30- 3 27- 6 15- 6 25- 6 12- 6 MIN. QFE PRESSURE IN HPA 867.9 866.8 869.9 874.5 873.9 869.6 869.0 871.6 872.8 875.5 874.5 875.9 866.8 DAY-HOUR 29- 0 20-21 27- 0 14-15 8-15 30-12 30-15 1- 0 7-12 27-12 14-12 7- 0 MEAN QNH PRESSURE IN HPA 1020.6 1016.4 1017.4 1017.9 1018.7 1013.9 1011.5 1015.9 1018.2 1020.5 1023.0 1024.1 1018.2 MAX. QNH PRESSURE IN HPA 1027.7 1026.6 1029.7 1024.6 1028.5 1020.5 1018.6 1020.5 1027.9 1027.2 1034.6 1034.7 1034.7 DAY-HOUR 12- 6 12-21 3- 6 30- 6 2- 6 7- 3 4- 3 30- 3 27- 6 15- 6 25- 6 12- 6 MIN. QNH PRESSURE IN HPA 1004.1 1002.9 1006.4 1011.5 1010.9 1006.0 1005.4 1008.3 1009.6 1012.7 1011.5 1013.1 1002.9 DAY-HOUR 29- 0 20-21 27- 0 14-15 8-15 30-12 30-15 1- 0 7-12 27-12 14-12 7- 0 MEAN QFF PRESSURE IN HPA 1023.4 1017.3 1016.8 1014.0 1013.8 1005.4 1001.0 1006.6 1011.4 1015.7 1023.1 1026.8 1014.6 MAX. QFF PRESSURE IN HPA 1033.2 1029.1 1035.7 1025.1 1029.6 1017.0 1008.7 1012.9 1025.3 1025.2 1037.7 1042.6 1042.6 DAY-HOUR 22- 3 13- 3 3- 3 18-18 2- 6 7- 3 5- 6 30- 3 27- 3 16- 3 25- 6 12-18 MIN. QFF PRESSURE IN HPA 1004.1 1000.7 1001.9 1005.0 1003.6 996.5 994.8 996.0 1001.7 1006.1 1009.4 1011.0 994.8 DAY-HOUR 29- 0 20-21 27- 0 27-21 23-12 30-12 31-15 1- 0 7-12 27-12 14-12 7- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 882.0 878.5 879.0 879.8 880.8 876.7 874.6 878.4 880.4 882.4 884.5 885.3 880.2 MAX. QFE PRESSURE IN HPA 887.0 887.0 889.7 884.4 888.3 881.1 879.7 881.0 887.4 887.1 893.2 894.1 894.1 DAY 12 13 3 16 2 7 4 30 27 16 23 12 MIN. QFE PRESSURE IN HPA 867.9 871.2 869.9 875.3 875.4 872.2 871.0 871.6 874.9 877.4 878.2 875.9 867.9 DAY 29 19 27 23 30 30 31 1 7 27 14 7 MEAN QNH PRESSURE IN HPA 1020.0 1016.0 1016.6 1017.5 1018.6 1014.1 1011.6 1015.9 1018.2 1020.4 1022.8 1023.7 1017.9 MAX. QNH PRESSURE IN HPA 1025.6 1025.6 1028.6 1022.7 1027.1 1019.0 1017.4 1018.9 1026.1 1025.7 1032.6 1033.6 1033.6 DAY 12 13 3 16 2 7 4 30 27 16 23 12 MIN. QNH PRESSURE IN HPA 1004.1 1007.8 1006.4 1012.4 1012.6 1009.0 1007.6 1008.3 1012.0 1014.8 1015.7 1013.1 1004.1 DAY 29 19 27 23 30 30 31 1 7 27 14 7 MEAN QFF PRESSURE IN HPA 1022.0 1016.5 1015.8 1013.4 1014.0 1005.6 1001.0 1006.6 1011.2 1015.1 1022.1 1025.8 1014.1 MAX. QFF PRESSURE IN HPA 1030.8 1028.3 1034.4 1023.7 1027.7 1014.1 1005.9 1011.1 1022.3 1021.7 1035.4 1041.2 1041.2 DAY 22 13 3 19 2 7 5 30 27 16 23 13 MIN. QFF PRESSURE IN HPA 1004.1 1005.8 1001.9 1005.2 1004.9 999.4 997.2 996.0 1004.5 1008.2 1009.9 1011.0 996.0 DAY 29 21 27 28 30 30 31 1 7 27 2 7 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 882.4 878.8 879.7 880.5 881.4 877.7 875.5 879.4 881.4 883.1 884.8 885.6 880.9 MAX. QFE PRESSURE IN HPA 887.6 886.7 890.1 885.0 889.3 882.5 880.8 882.5 888.5 887.7 893.5 894.5 894.5 DAY 11 13 3 30 2 7 4 30 27 16 26 12 MIN. QFE PRESSURE IN HPA 869.8 869.9 870.4 876.2 875.2 873.9 871.5 873.0 875.3 877.8 878.4 876.3 869.8 DAY 29 19 27 14 30 30 30 1 7 27 14 7 MEAN QNH PRESSURE IN HPA 1020.5 1016.3 1017.4 1018.3 1019.3 1015.2 1012.7 1017.1 1019.3 1021.2 1023.2 1024.0 1018.7 MAX. QNH PRESSURE IN HPA 1026.3 1025.3 1029.1 1023.4 1028.2 1020.5 1018.6 1020.5 1027.3 1026.4 1032.9 1034.0 1034.0 DAY 11 13 3 30 2 7 4 30 27 16 26 12 MIN. QNH PRESSURE IN HPA 1006.3 1006.4 1006.9 1013.5 1012.3 1010.9 1008.2 1009.9 1012.4 1015.3 1015.9 1013.6 1006.3 DAY 29 19 27 14 30 30 30 1 7 27 14 7 MEAN QFF PRESSURE IN HPA 1024.2 1017.8 1017.5 1014.9 1014.5 1007.0 1002.6 1008.4 1013.5 1017.9 1024.3 1027.6 1015.8 MAX. QFF PRESSURE IN HPA 1033.2 1029.1 1035.7 1024.8 1029.4 1017.0 1008.2 1012.9 1025.3 1025.2 1037.4 1041.9 1041.9 DAY 22 13 3 19 2 7 5 30 27 16 24 12 MIN. QFF PRESSURE IN HPA 1007.2 1009.9 1003.6 1007.2 1005.7 1001.7 997.8 998.8 1005.5 1011.1 1011.4 1011.8 997.8 DAY 29 19 27 28 30 30 31 1 7 27 2 7 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 883.8 880.0 880.7 881.2 881.8 877.8 875.7 879.7 882.0 883.7 885.7 886.9 881.6 MAX. QFE PRESSURE IN HPA 888.9 887.3 890.6 886.1 889.6 882.3 880.4 882.5 889.0 888.4 895.0 895.1 895.1 DAY 12 13 3 30 2 7 4 30 27 15 25 12 MIN. QFE PRESSURE IN HPA 873.2 870.2 871.9 877.0 876.5 872.4 870.9 874.2 875.5 878.2 878.3 879.4 870.2 DAY 29 19 13 14 30 30 1 1 7 27 14 7 MEAN QNH PRESSURE IN HPA 1022.0 1017.7 1018.5 1019.1 1019.8 1015.3 1012.9 1017.5 1019.9 1021.9 1024.1 1025.5 1019.5 MAX. QNH PRESSURE IN HPA 1027.7 1025.9 1029.7 1024.6 1028.5 1020.3 1018.2 1020.5 1027.9 1027.2 1034.6 1034.7 1034.7 DAY 12 13 3 30 2 7 4 30 27 15 25 12 MIN. QNH PRESSURE IN HPA 1010.1 1006.7 1008.6 1014.4 1013.8 1009.2 1007.5 1011.2 1012.7 1015.7 1015.8 1017.1 1006.7 DAY 29 19 13 14 30 30 1 1 7 27 14 7 MEAN QFF PRESSURE IN HPA 1025.2 1019.0 1018.1 1015.2 1014.9 1006.9 1002.4 1008.0 1013.0 1016.9 1024.3 1028.6 1016.0 MAX. QFF PRESSURE IN HPA 1032.1 1028.8 1035.2 1024.5 1029.6 1016.4 1008.7 1011.6 1024.6 1023.2 1037.7 1042.4 1042.4 DAY 22 13 3 19 2 7 5 30 27 15 25 12 MIN. QFF PRESSURE IN HPA 1012.4 1010.6 1005.0 1007.6 1007.0 999.9 996.9 999.9 1004.8 1008.5 1012.7 1014.8 996.9 DAY 16 19 13 27 23 30 31 1 7 27 1 7 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 882.6 879.1 879.9 880.4 881.0 876.6 874.6 878.4 880.4 882.3 884.5 885.5 880.5 MAX. QFE PRESSURE IN HPA 887.8 885.0 889.3 884.9 888.7 881.1 879.0 881.4 887.8 887.4 893.2 894.2 894.2 DAY 12 7 3 30 2 7 4 30 27 15 25 12 MIN. QFE PRESSURE IN HPA 875.2 870.2 872.2 876.8 875.4 871.1 870.0 874.2 874.0 876.4 876.5 878.5 870.0 DAY 29 19 13 28 8 30 31 1 7 27 14 7 MEAN QNH PRESSURE IN HPA 1020.7 1016.8 1017.7 1018.2 1018.9 1013.9 1011.7 1016.0 1018.2 1020.3 1022.8 1023.9 1018.2 MAX. QNH PRESSURE IN HPA 1026.5 1023.4 1028.2 1023.2 1027.5 1019.0 1016.6 1019.3 1026.5 1026.1 1032.6 1033.7 1033.7 DAY 12 7 3 30 2 7 4 30 27 15 25 12 MIN. QNH PRESSURE IN HPA 1012.3 1006.7 1009.0 1014.1 1012.6 1007.7 1006.5 1011.2 1011.0 1013.7 1013.8 1016.0 1006.5 DAY 29 19 13 28 8 30 31 1 7 27 14 7 MEAN QFF PRESSURE IN HPA 1022.9 1017.3 1016.7 1013.9 1013.7 1005.2 1000.8 1006.3 1010.6 1014.6 1022.2 1026.0 1014.2 MAX. QFF PRESSURE IN HPA 1030.3 1024.5 1032.4 1022.7 1027.4 1013.9 1005.8 1010.3 1022.7 1021.3 1035.2 1041.0 1041.0 DAY 22 7 3 19 2 7 4 30 27 15 23 12 MIN. QFF PRESSURE IN HPA 1011.0 1009.2 1004.8 1006.3 1004.5 997.9 995.4 999.8 1002.5 1006.4 1011.2 1013.5 995.4 DAY 16 26 13 28 23 30 31 1 7 27 1 7 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 882.0 878.0 878.9 879.1 880.0 875.3 873.4 877.0 879.0 881.3 883.8 884.9 879.4 MAX. QFE PRESSURE IN HPA 886.9 883.7 887.2 883.3 887.2 879.5 877.7 879.7 886.7 886.5 892.7 893.9 893.9 DAY 11 12 2 3 1 7 4 30 27 15 25 12 MIN. QFE PRESSURE IN HPA 873.5 870.5 871.5 875.0 874.1 869.6 869.6 872.3 872.8 875.5 874.5 878.0 869.6 DAY 28 19 13 14 8 30 30 1 7 27 14 6 MEAN QNH PRESSURE IN HPA 1020.0 1015.5 1016.5 1016.7 1017.7 1012.5 1010.3 1014.4 1016.6 1019.2 1022.0 1023.2 1017.0 MAX. QNH PRESSURE IN HPA 1025.5 1021.9 1025.8 1021.4 1025.8 1017.2 1015.1 1017.4 1025.3 1025.0 1032.0 1033.4 1033.4 DAY 11 12 2 3 1 7 4 30 27 15 25 12 MIN. QNH PRESSURE IN HPA 1010.4 1007.0 1008.2 1012.1 1011.1 1006.0 1006.0 1009.1 1009.6 1012.7 1011.5 1015.5 1006.0 DAY 28 19 13 14 8 30 30 1 7 27 14 6 MEAN QFF PRESSURE IN HPA 1022.0 1016.0 1015.7 1012.6 1013.0 1004.1 999.8 1005.1 1009.6 1013.8 1021.5 1025.4 1013.2 MAX. QFF PRESSURE IN HPA 1029.9 1023.2 1030.8 1023.4 1025.3 1012.0 1005.1 1009.8 1022.1 1021.4 1033.7 1041.8 1041.8 DAY 22 12 2 18 1 7 4 30 27 15 23 12 MIN. QFF PRESSURE IN HPA 1011.7 1008.0 1004.1 1005.4 1003.6 996.5 995.5 997.5 1001.7 1006.1 1009.4 1013.4 995.5 DAY 28 26 13 28 23 30 31 1 7 27 14 7 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MEANS AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 882.6 878.6 879.4 879.4 880.1 875.4 873.2 877.0 879.1 881.9 884.5 885.7 879.7 MAX. QFE PRESSURE IN HPA 887.3 885.5 888.4 883.0 887.4 879.7 877.4 879.8 886.6 887.1 893.0 893.9 893.9 DAY 12 12 2 3 1 7 4 4 27 15 25 12 MIN. QFE PRESSURE IN HPA 872.9 870.3 871.8 874.5 873.9 869.7 869.0 874.0 873.3 877.5 876.4 878.9 869.0 DAY 28 20 13 14 8 30 30 1 7 27 14 6 MEAN QNH PRESSURE IN HPA 1020.7 1016.1 1017.1 1017.1 1017.8 1012.5 1010.1 1014.4 1016.8 1019.9 1022.8 1024.1 1017.4 MAX. QNH PRESSURE IN HPA 1025.9 1023.9 1027.2 1021.1 1026.1 1017.4 1014.8 1017.5 1025.2 1025.7 1032.4 1033.4 1033.4 DAY 12 12 2 3 1 7 4 4 27 15 25 12 MIN. QNH PRESSURE IN HPA 1009.7 1006.8 1008.5 1011.5 1010.9 1006.1 1005.4 1011.0 1010.2 1014.9 1013.7 1016.5 1005.4 DAY 28 20 13 14 8 30 30 1 7 27 14 6 MEAN QFF PRESSURE IN HPA 1024.3 1017.6 1017.1 1013.6 1012.9 1004.4 1000.0 1005.8 1011.0 1016.5 1024.0 1027.7 1014.6 MAX. QFF PRESSURE IN HPA 1032.0 1026.2 1032.7 1024.2 1026.2 1013.1 1005.5 1009.5 1023.5 1024.8 1037.0 1042.5 1042.5 DAY 22 12 2 18 1 7 4 30 27 15 24 12 MIN. QFF PRESSURE IN HPA 1012.1 1007.8 1004.1 1005.3 1003.9 996.9 994.8 1000.4 1002.5 1010.0 1012.3 1016.4 994.8 DAY 28 20 26 27 23 30 31 1 7 27 1 6 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 882.9 879.1 880.2 880.6 881.1 876.5 874.4 878.4 880.4 882.7 885.1 885.9 880.6 MAX. QFE PRESSURE IN HPA 887.8 887.4 890.0 884.5 889.1 881.9 879.0 880.8 887.4 887.7 893.6 893.7 893.7 DAY 12 12 2 30 1 6 3 30 26 15 25 12 MIN. QFE PRESSURE IN HPA 871.8 867.8 871.1 875.7 875.7 871.0 870.6 875.8 874.9 878.4 877.5 877.8 867.8 DAY 28 20 26 27 8 27 31 1 6 26 14 6 MEAN QNH PRESSURE IN HPA 1021.0 1016.7 1018.0 1018.4 1018.9 1013.8 1011.4 1015.9 1018.2 1020.8 1023.5 1024.4 1018.4 MAX. QNH PRESSURE IN HPA 1026.5 1026.1 1029.0 1022.8 1028.0 1019.9 1016.6 1018.6 1026.1 1026.4 1033.0 1033.1 1033.1 DAY 12 12 2 30 1 6 3 30 26 15 25 12 MIN. QNH PRESSURE IN HPA 1008.5 1004.0 1007.7 1012.9 1012.9 1007.6 1007.2 1013.0 1012.0 1015.9 1014.9 1015.3 1004.0 DAY 28 20 26 27 8 27 31 1 6 26 14 6 MEAN QFF PRESSURE IN HPA 1024.2 1017.9 1017.4 1014.6 1013.9 1005.4 1000.8 1006.5 1011.4 1015.8 1023.7 1027.4 1014.9 MAX. QFF PRESSURE IN HPA 1031.0 1028.1 1034.7 1025.1 1028.8 1014.7 1005.9 1009.9 1022.8 1022.7 1036.5 1042.6 1042.6 DAY 21 12 2 18 1 6 4 30 27 15 23 12 MIN. QFF PRESSURE IN HPA 1010.2 1004.4 1002.4 1005.1 1005.8 997.9 995.4 1002.5 1003.6 1008.3 1011.5 1014.4 995.4 DAY 28 20 26 27 29 30 31 1 7 27 1 6 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 882.4 878.6 879.7 880.3 880.9 876.7 874.5 878.6 880.5 882.5 884.9 885.5 880.4 MAX. QFE PRESSURE IN HPA 887.2 887.9 889.7 885.0 888.6 881.6 879.5 880.8 887.4 887.3 893.6 893.5 893.6 DAY 12 12 2 15 1 6 3 8 26 15 25 12 MIN. QFE PRESSURE IN HPA 870.1 866.8 870.9 875.7 875.5 870.6 870.9 876.3 874.9 878.1 878.0 876.9 866.8 DAY 28 20 26 27 29 30 30 26 6 25 14 6 MEAN QNH PRESSURE IN HPA 1020.4 1016.1 1017.4 1018.1 1018.8 1014.0 1011.6 1016.1 1018.3 1020.6 1023.2 1023.9 1018.2 MAX. QNH PRESSURE IN HPA 1025.8 1026.6 1028.6 1023.4 1027.4 1019.5 1017.2 1018.6 1026.1 1025.9 1033.0 1032.9 1033.0 DAY 12 12 2 15 1 6 3 8 26 15 25 12 MIN. QNH PRESSURE IN HPA 1006.6 1002.9 1007.5 1012.9 1012.7 1007.2 1007.5 1013.6 1012.0 1015.6 1015.5 1014.2 1002.9 DAY 28 20 26 27 29 30 30 26 6 25 14 6 MEAN QFF PRESSURE IN HPA 1022.6 1016.7 1016.4 1013.7 1013.5 1005.1 1000.7 1006.5 1010.8 1014.8 1022.7 1026.1 1014.1 MAX. QFF PRESSURE IN HPA 1031.5 1028.6 1033.9 1024.9 1027.9 1013.8 1005.4 1009.9 1021.8 1021.3 1035.1 1042.1 1042.1 DAY 21 12 2 18 1 6 4 30 26 15 23 12 MIN. QFF PRESSURE IN HPA 1006.4 1000.7 1002.5 1005.0 1004.3 997.6 996.6 1003.4 1003.6 1008.3 1010.5 1011.5 996.6 DAY 28 20 26 27 29 30 30 1 10 27 1 6 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1991-2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.9 4.1 8.0 15.3 20.1 25.9 27.7 26.3 21.3 15.0 8.6 4.1 14.9 MINIMUN AIR TEMPERATURE (C) -3.2 -1.5 1.7 7.5 10.7 15.2 17.2 15.3 10.8 6.0 1.7 -1.2 6.7 DAYS WITH MINIMUM TEMP. >=21 0.0 0.0 0.0 0.0 0.0 0.8 2.2 0.7 0.0 0.0 0.0 0.0 3.7 DAYS WITH MINIMUM TEMP. <=-4 12.1 7.2 2.8 0.0 0.0 0.0 0.0 0.0 0.0 0.2 2.3 6.7 31.3 DAYS WITH FREEZING MIN.<= 0 24.5 19.5 11.5 1.2 0.2 0.0 0.0 0.0 0.0 2.1 11.0 19.8 89.8 TEMPERATURE RECORDS LOWEST(C) -17.6 -14.8 -15.8 -3.8 -0.6 6.8 10.6 3.6 0.8 -7.6 -8.6 -13.0 -17.6 YEAR-DAY 92-29 0- 9 92-12 94- 6 92- 4 0-14 94-16 96-31 3-28 95-19 95-29 3-13 92-29 MAXIMUM AIR TEMPERATURE (C) 7.5 9.8 14.1 22.0 26.8 32.5 34.6 33.7 30.0 23.6 16.1 10.2 21.7 DAYS WITH MAXIMUM TEMP. >=30 0.0 0.0 0.0 1.9 8.8 24.1 30.2 28.8 16.5 2.2 0.0 0.0 112.5 DAYS WITH MAXIMUM TEMP. <= 0 1.5 0.7 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 2.7 TEMPERATURE RECORDS HIGHEST(C) 18.0 21.0 27.6 33.2 38.0 39.8 41.6 40.0 38.6 33.6 27.0 24.2 41.6 YEAR-DAY 2- 4 97-22 2-28 94-26 0-27 99-29 98- 6 2-10 96- 9 98- 2 3- 1 98-12 98- 6 DIF. BETWEEN (MAX.-MIN.) (C) 10.7 11.3 12.4 14.5 16.1 17.3 17.4 18.4 19.2 17.6 14.4 11.4 15.0 MEAN DAILY TEMP. (MDT) (C) 2.1 4.1 7.9 14.7 18.7 23.8 25.9 24.5 20.4 14.8 8.9 4.5 14.2 STANDARD DEVIATION OF MDT(C) 1.39 1.46 1.77 1.48 2.19 0.97 0.93 1.22 1.49 1.86 1.66 1.69 1.51 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 2.5 18.8 90.4 151.3 112.1 30.9 1.3 0.0 0.0 407.3 HEATING DEG. DAYS(BASE 18 0C) 474.0 386.8 307.0 107.4 36.8 0.6 0.0 0.3 15.2 110.1 272.9 417.9 2129.0 DEWPOINT (MEAN C) -3.6 -2.5 -0.3 4.1 5.3 5.4 6.0 4.6 1.9 0.5 -0.9 -1.5 1.6 MIXING RATIO (G/KG) 3.48 3.77 4.46 6.12 6.65 6.77 6.98 6.43 5.28 4.78 4.27 4.05 5.25 VAPOUR PRESSURE (HPA) 4.90 5.30 6.26 8.56 9.29 9.43 9.71 8.98 7.41 6.73 6.02 5.72 7.36 SATURATION DEF. (HPA) 2.59 3.54 5.42 10.05 16.05 25.56 28.92 27.00 20.01 11.89 6.11 3.00 13.34 RELATIVE HUMIDITY (MEAN %) 71 66 62 54 44 32 28 28 32 42 57 71 49 RELATIVE HUMIDITY (MAX. %) 89 88 87 80 69 53 45 45 52 66 79 89 70 RELATIVE HUMIDITY (MIN. %) 48 43 38 31 25 17 17 16 17 23 34 47 30 RELATIVE HUMIDITY (MEAN% 03UTC) 85 84 82 76 63 47 41 43 49 63 75 86 66 RELATIVE HUMIDITY (MEAN% 09UTC) 56 51 45 37 30 20 20 20 21 28 40 54 35 RELATIVE HUMIDITY (MEAN% 15UTC) 69 61 54 44 35 24 20 21 24 36 53 70 43 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 32.8 36.4 57.4 31.6 21.6 5.7 0.9 0.0 1.1 4.7 13.9 27.9 234.0 DAYS WITH PRECIPITATION >=10 0.8 1.0 1.8 1.1 0.6 0.2 0.0 0.0 0.0 0.0 0.3 0.7 6.5 DAYS WITH PRECIPITATION >= 5 2.5 2.5 4.1 2.2 1.3 0.4 0.1 0.0 0.1 0.4 1.2 1.9 16.7 DAYS WITH PRECIPITATION >= 1 5.9 5.6 8.2 4.7 4.2 1.2 0.2 0.0 0.4 1.0 2.1 4.6 38.1 DAYS WITH PRECIPITATION 10.2 10.8 13.2 10.4 8.3 3.2 1.0 0.6 1.2 3.4 5.2 8.5 76.0 GREATEST DAILY PRECIPITATION 24.0 29.0 29.0 27.0 26.0 14.0 5.0 0.5 5.2 9.0 16.1 36.0 36.0 YEAR-DAY 3-20 98-10 99- 3 97-20 93-29 92- 6 99-13 93-17 95-22 97-24 97- 1 91-15 91 DAY WITH THUNDER STORM 0.0 1.0 2.1 2.8 3.6 2.6 0.2 0.1 0.4 0.3 0.4 0.4 13.9 DAYS WITH SNOW OR SLEET 5.3 3.8 2.5 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.8 2.8 15.5 DAYS WITH DUST 0.1 0.3 1.2 1.5 1.6 2.9 2.3 2.4 2.1 1.1 0.5 0.0 16.0 WIND DIRECTION (PREVAILING) 270 270 90 90 90 90 90 90 90 90 270 270 90 PREVAILING WIND SPEED(KNOTS) 6.3 7.1 6.9 7.4 8.6 9.4 10.0 9.0 8.2 6.7 6.6 5.9 8.4 PREVAILING WIND PERCENT 2.9 6.2 8.5 9.7 12.8 17.3 16.2 15.0 14.4 5.1 3.9 2.3 9.1 CALMS PERCENT OF WIND 86.0 74.2 67.2 67.5 64.2 60.9 62.7 66.2 71.6 81.9 84.2 88.5 72.9 NO. OF WIND OBSERVATION 219.2 192.5 219.1 209.5 209.5 201.5 211.6 213.2 219.8 225.3 221.5 231.5 2574.2 VECTOR WIND DIRECTION (MEAN) 270 230 163 167 110 85 87 91 98 109 274 286 99 VECTOR WIND MAGNITUDE(KNOTS) 0.1 0.2 0.2 0.3 0.7 1.5 1.4 1.3 1.0 0.1 0.2 0.1 0.5 WIND STEADINESES (MEAN %) 11.1 11.8 9.1 12.5 24.1 44.1 42.4 46.4 50.0 9.1 22.2 16.7 25.0 WIND SPEED (MEAN KNOTS) 0.9 1.7 2.2 2.4 2.9 3.4 3.3 2.8 2.0 1.1 0.9 0.6 2.0 FASTEST WIND DIRECTION 250 210 90 190 240 100 120 90 80 100 150 190 100 FASTEST WIND SPEED (KNOTS) 27 19 31 27 31 35 23 25 27 23 25 16 35 YEAR-DAY 99- 1 97-23 95-14 92-15 93-29 99- 7 98- 2 91-20 98- 5 98- 9 93-14 0-26 99 DAYS WITH SKY CLEAR (0-2)/8 11.5 10.8 9.4 7.9 14.9 23.2 28.0 29.2 27.5 22.2 15.0 11.8 211.4 DAYS WITH P.CLOUDY (3-6)/8 10.7 9.6 11.4 15.8 12.8 6.5 2.6 1.8 2.4 7.5 9.7 11.8 102.6 DAYS WITH CLOUDY (7-8)/8 8.5 7.8 10.2 6.2 3.2 0.3 0.1 0.1 0.2 1.3 5.3 7.3 50.5 DAYS WITH VISIBILITY =< 2 KM 3.4 2.5 2.5 0.8 0.5 0.2 0.0 0.0 0.3 0.1 1.2 2.9 14.4 DURATION OF SUNSHINE HOURS 152.3 174.1 187.4 225.4 303.6 332.8 368.9 354.6 312.2 275.0 211.0 161.9 3059.2 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1991-2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 882.5 880.6 879.7 879.2 879.3 876.5 875.7 877.7 880.4 883.6 884.3 884.2 880.3 MAX. QFE PRESSURE IN HPA 895.2 893.6 894.2 892.5 889.6 885.7 884.6 886.9 891.4 893.5 897.2 895.1 897.2 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 96- 4 96-30 94-23 96- 2 96-18 3-12 96-18 MIN. QFE PRESSURE IN HPA 863.1 866.5 867.5 865.6 868.4 865.4 866.6 869.6 871.1 873.6 867.6 868.5 863.1 YEAR-DAY 98-13 1-21 1-26 2- 4 1-30 99-25 98- 5 1-27 0- 1 96-27 95-26 94- 4 98-13 MEAN QNH PRESSURE IN HPA 1020.5 1018.4 1017.4 1016.8 1017.0 1013.7 1012.9 1015.2 1018.2 1021.8 1022.6 1022.5 1018.1 MAX. QNH PRESSURE IN HPA 1034.8 1033.0 1033.7 1031.8 1028.5 1024.1 1022.9 1025.5 1030.6 1032.9 1037.1 1034.7 1037.1 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 96- 4 96-30 94-23 96- 2 96-18 3-12 96-18 MIN. QNH PRESSURE IN HPA 998.7 1002.5 1003.7 1001.5 1004.7 1001.3 1002.7 1006.0 1007.7 1010.5 1003.8 1004.8 998.7 YEAR-DAY 98-13 1-21 1-26 2- 4 1-30 99-25 98- 5 1-27 0- 1 96-27 95-26 94- 4 98-13 MEAN QFF PRESSURE IN HPA 1023.8 1020.1 1017.1 1012.6 1011.0 1004.7 1002.4 1006.1 1011.9 1018.3 1022.3 1024.0 1014.5 MAX. QFF PRESSURE IN HPA 1039.5 1035.5 1038.2 1035.1 1029.6 1017.9 1013.5 1019.8 1026.0 1035.2 1041.4 1042.6 1042.6 YEAR-DAY 92-10 1-10 92-12 94- 5 3- 2 93-23 2- 3 92-31 94-23 95-18 96-18 3-12 3-12 MIN. QFF PRESSURE IN HPA 999.7 1000.7 998.4 998.4 995.4 989.8 991.2 995.4 997.9 1004.3 999.6 1000.7 989.8 YEAR-DAY 98-13 3-20 1-26 2- 4 1-30 2-21 95- 1 1-27 0- 1 96-31 95-26 94- 4 2-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 882.6 880.2 879.4 878.8 879.3 876.4 875.5 877.9 880.8 883.4 884.3 883.6 880.2 MAX. QFE PRESSURE IN HPA 891.6 891.6 890.7 889.3 888.3 885.0 881.4 883.9 889.9 892.5 896.4 894.1 896.4 YEAR-DAY 92-10 1-10 2-11 1- 2 3- 2 93-23 2- 3 92-31 94-23 95-18 96-19 3-12 96-19 MIN. QFE PRESSURE IN HPA 867.9 867.3 867.5 866.3 870.0 867.2 868.4 871.6 872.2 874.5 867.6 868.6 866.3 YEAR-DAY 3-29 1-22 1-26 2- 4 97- 5 2-21 95- 1 3- 1 0- 2 96-31 95-26 94- 4 2- 4 MEAN QNH PRESSURE IN HPA 1020.6 1017.9 1017.0 1016.4 1017.0 1013.7 1012.7 1015.4 1018.6 1021.6 1022.5 1021.8 1017.9 MAX. QNH PRESSURE IN HPA 1030.8 1030.8 1029.8 1028.2 1027.1 1023.4 1019.3 1022.1 1028.9 1031.8 1036.2 1033.6 1036.2 YEAR-DAY 92-10 1-10 2-11 1- 2 3- 2 93-23 2- 3 92-31 94-23 95-18 96-19 3-12 96-19 MIN. QNH PRESSURE IN HPA 1004.1 1003.4 1003.7 1002.3 1006.5 1003.3 1004.7 1008.3 1009.0 1011.5 1003.8 1004.9 1002.3 YEAR-DAY 3-29 1-22 1-26 2- 4 97- 5 2-21 95- 1 3- 1 0- 2 96-31 95-26 94- 4 2- 4 MEAN QFF PRESSURE IN HPA 1023.3 1019.1 1016.3 1012.2 1011.0 1005.0 1002.6 1006.2 1011.5 1017.4 1021.5 1023.2 1014.1 MAX. QFF PRESSURE IN HPA 1037.6 1033.6 1034.8 1030.2 1027.7 1017.3 1010.7 1016.4 1024.2 1033.0 1040.0 1041.2 1041.2 YEAR-DAY 92-10 97- 8 92-12 94- 6 3- 2 93-23 2- 3 92-31 94-23 95-18 96-19 3-13 3-13 MIN. QFF PRESSURE IN HPA 1004.1 1002.5 998.4 999.0 997.6 991.5 993.2 996.0 999.1 1004.3 999.6 1000.7 991.5 YEAR-DAY 3-29 1-22 1-26 2- 4 97- 5 2-21 95- 1 3- 1 0- 2 96-31 95-26 94- 4 2-21 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 882.5 880.6 879.8 879.6 880.0 877.6 876.7 878.7 881.2 884.2 884.6 884.3 880.8 MAX. QFE PRESSURE IN HPA 892.2 892.4 893.0 890.8 889.3 885.7 884.6 886.5 890.7 892.7 895.9 894.5 895.9 YEAR-DAY 92-10 98-23 2-11 94- 5 3- 2 93-23 96- 4 96-30 94-23 95-18 96-19 3-12 96-19 MIN. QFE PRESSURE IN HPA 869.8 868.5 868.7 867.2 870.0 868.0 868.3 871.6 873.3 876.3 868.5 869.6 867.2 YEAR-DAY 3-29 99-21 1-26 2- 4 97- 5 99-26 98- 6 94- 3 96- 9 96-31 95-26 94- 4 2- 4 MEAN QNH PRESSURE IN HPA 1020.5 1018.4 1017.6 1017.3 1017.8 1015.0 1014.1 1016.3 1019.1 1022.4 1022.9 1022.6 1018.7 MAX. QNH PRESSURE IN HPA 1031.5 1031.7 1032.4 1029.9 1028.2 1024.1 1022.9 1025.0 1029.8 1032.0 1035.6 1034.0 1035.6 YEAR-DAY 92-10 98-23 2-11 94- 5 3- 2 93-23 96- 4 96-30 94-23 95-18 96-19 3-12 96-19 MIN. QNH PRESSURE IN HPA 1006.3 1004.8 1005.0 1003.3 1006.5 1004.2 1004.6 1008.3 1010.2 1013.6 1004.8 1006.0 1003.3 YEAR-DAY 3-29 99-21 1-26 2- 4 97- 5 99-26 98- 6 94- 3 96- 9 96-31 95-26 94- 4 2- 4 MEAN QFF PRESSURE IN HPA 1024.3 1020.9 1017.9 1013.8 1011.7 1006.2 1004.3 1007.6 1013.2 1019.9 1023.4 1025.3 1015.7 MAX. QFF PRESSURE IN HPA 1039.2 1037.2 1037.7 1033.2 1029.4 1017.9 1013.5 1020.5 1025.9 1034.9 1041.0 1041.9 1041.9 YEAR-DAY 92-10 98-23 92-12 94- 5 3- 2 93-23 96- 4 96-31 94-23 95-18 96-19 3-12 3-12 MIN. QFF PRESSURE IN HPA 1006.5 1001.4 1000.1 1000.0 997.7 993.0 991.7 997.0 1000.4 1007.2 1002.8 1003.4 991.7 YEAR-DAY 92- 3 99-21 98-30 97-10 98-22 99-26 98- 6 94- 3 98- 6 98- 2 95-26 94- 4 98- 6 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1991-2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 883.6 881.7 880.8 880.3 880.4 877.7 876.9 879.2 881.9 885.0 885.5 885.4 881.5 MAX. QFE PRESSURE IN HPA 895.2 893.6 894.2 892.5 889.6 885.7 884.3 886.9 891.4 893.5 897.2 895.1 897.2 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 96- 3 96-30 94-23 96- 2 96-19 3-12 96-19 MIN. QFE PRESSURE IN HPA 870.4 869.8 869.8 867.1 870.2 868.3 869.0 872.0 873.2 876.3 870.2 869.3 867.1 YEAR-DAY 98-13 1-21 1-26 2- 4 98-30 99-25 98- 6 94- 2 96- 9 96-27 94-26 94- 4 2- 4 MEAN QNH PRESSURE IN HPA 1021.8 1019.7 1018.6 1018.1 1018.2 1015.1 1014.3 1016.8 1019.9 1023.3 1023.9 1023.8 1019.4 MAX. QNH PRESSURE IN HPA 1034.8 1033.0 1033.7 1031.8 1028.5 1024.1 1022.6 1025.5 1030.6 1032.9 1037.1 1034.7 1037.1 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 96- 3 96-30 94-23 96- 2 96-19 3-12 96-19 MIN. QNH PRESSURE IN HPA 1006.9 1006.3 1006.3 1003.2 1006.7 1004.6 1005.4 1008.7 1010.1 1013.6 1006.7 1005.7 1003.2 YEAR-DAY 98-13 1-21 1-26 2- 4 98-30 99-25 98- 6 94- 2 96- 9 96-27 94-26 94- 4 2- 4 MEAN QFF PRESSURE IN HPA 1025.8 1021.5 1018.5 1014.0 1012.2 1005.9 1003.8 1007.7 1013.5 1019.4 1023.8 1025.6 1016.0 MAX. QFF PRESSURE IN HPA 1039.5 1035.5 1037.5 1035.1 1029.6 1017.9 1013.1 1019.8 1026.0 1035.2 1040.8 1042.4 1042.4 YEAR-DAY 92-10 1-10 2-11 94- 5 3- 2 93-23 2- 3 92-31 94-23 95-18 96-19 3-12 3-12 MIN. QFF PRESSURE IN HPA 1008.6 1004.8 1002.9 1000.0 998.6 993.0 993.8 999.3 1001.3 1008.5 1003.9 1002.6 993.0 YEAR-DAY 92- 3 1-21 1-26 2- 4 1-30 2-21 95- 1 2-18 0- 1 3-27 94-26 94- 4 2-21 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 882.5 880.8 879.9 879.3 879.5 876.6 875.8 877.8 880.5 883.5 884.1 884.1 880.4 MAX. QFE PRESSURE IN HPA 893.8 892.3 892.0 892.3 888.7 884.4 883.9 885.7 890.3 891.8 895.7 894.2 895.7 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 96- 3 96-30 94-23 95-25 0-17 3-12 0-17 MIN. QFE PRESSURE IN HPA 866.8 867.9 868.7 866.5 869.6 866.9 868.5 870.7 872.2 874.7 869.9 868.5 866.5 YEAR-DAY 98-13 1-21 95-26 2- 4 1-30 2-21 98- 6 94- 2 0- 1 96-27 93-14 94- 4 2- 4 MEAN QNH PRESSURE IN HPA 1020.5 1018.6 1017.6 1017.0 1017.1 1013.9 1013.0 1015.3 1018.3 1021.7 1022.4 1022.3 1018.1 MAX. QNH PRESSURE IN HPA 1033.3 1031.6 1031.2 1031.6 1027.5 1022.7 1022.1 1024.1 1029.3 1031.0 1035.4 1033.7 1035.4 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 96- 3 96-30 94-23 95-25 0-17 3-12 0-17 MIN. QNH PRESSURE IN HPA 1002.9 1004.1 1005.0 1002.5 1006.0 1003.0 1004.8 1007.3 1009.0 1011.8 1006.4 1004.8 1002.5 YEAR-DAY 98-13 1-21 95-26 2- 4 1-30 2-21 98- 6 94- 2 0- 1 96-27 93-14 94- 4 2- 4 MEAN QFF PRESSURE IN HPA 1023.6 1019.8 1016.9 1012.5 1010.9 1004.5 1002.2 1005.9 1011.1 1016.8 1021.2 1023.3 1014.1 MAX. QFF PRESSURE IN HPA 1038.3 1033.2 1037.2 1034.6 1027.4 1016.4 1011.5 1017.7 1024.0 1031.4 1038.3 1041.0 1041.0 YEAR-DAY 96-10 1- 9 92-12 94- 5 3- 2 93-23 2- 3 92-31 94-22 95-18 0-17 3-12 3-12 MIN. QFF PRESSURE IN HPA 1008.1 1001.4 1000.3 998.9 996.3 990.7 993.0 996.7 998.4 1006.4 1004.7 1001.5 990.7 YEAR-DAY 2- 8 1-21 95-26 2- 4 1-30 2-21 95-16 1-27 0- 1 3-27 92-26 94- 4 2-21 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 881.7 879.7 878.8 878.1 878.3 875.3 874.5 876.4 879.1 882.5 883.4 883.4 879.3 MAX. QFE PRESSURE IN HPA 893.3 890.7 889.9 890.9 887.2 883.0 882.7 884.0 889.0 891.0 894.6 893.9 894.6 YEAR-DAY 99- 2 1- 9 2-11 94- 5 3- 1 93-23 96- 3 96-30 94-23 98- 9 96-18 3-12 96-18 MIN. QFE PRESSURE IN HPA 864.7 867.7 867.7 865.6 868.4 865.6 866.7 869.6 871.1 873.6 871.5 869.7 864.7 YEAR-DAY 98-13 1-21 95-26 2- 4 1-30 2-21 95- 1 1-27 0- 1 96-27 94-26 94- 4 98-13 MEAN QNH PRESSURE IN HPA 1019.7 1017.4 1016.4 1015.6 1015.8 1012.5 1011.5 1013.7 1016.7 1020.5 1021.5 1021.6 1016.9 MAX. QNH PRESSURE IN HPA 1032.7 1029.8 1028.9 1030.0 1025.8 1021.1 1020.8 1022.2 1027.9 1030.1 1034.2 1033.4 1034.2 YEAR-DAY 99- 2 1- 9 2-11 94- 5 3- 1 93-23 96- 3 96-30 94-23 98- 9 96-18 3-12 96-18 MIN. QNH PRESSURE IN HPA 1000.5 1003.9 1003.9 1001.5 1004.7 1001.5 1002.8 1006.0 1007.7 1010.5 1008.2 1006.1 1000.5 YEAR-DAY 98-13 1-21 95-26 2- 4 1-30 2-21 95- 1 1-27 0- 1 96-27 94-26 94- 4 98-13 MEAN QFF PRESSURE IN HPA 1022.7 1018.6 1015.7 1011.3 1010.0 1003.6 1001.2 1004.6 1010.1 1016.2 1020.7 1022.6 1013.1 MAX. QFF PRESSURE IN HPA 1036.7 1032.1 1036.7 1032.7 1025.3 1014.6 1010.1 1017.3 1022.9 1028.3 1037.5 1041.8 1041.8 YEAR-DAY 92-10 1- 9 92-12 94- 5 3- 1 93-23 2- 3 92-31 94-23 95-18 96-18 3-12 3-12 MIN. QFF PRESSURE IN HPA 1006.6 1002.0 999.2 998.4 995.4 989.8 991.2 995.4 997.9 1005.5 1006.0 1003.1 989.8 YEAR-DAY 2- 8 92-25 95-26 2- 4 1-30 2-21 95- 1 1-27 0- 1 96-27 1-17 94- 4 2-21 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1991-2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 882.3 880.3 879.2 878.4 878.3 875.3 874.4 876.4 879.3 883.0 884.0 884.0 879.6 MAX. QFE PRESSURE IN HPA 893.6 891.6 891.8 890.9 887.4 883.7 882.4 884.0 889.0 891.7 896.0 893.9 896.0 YEAR-DAY 99- 2 1- 9 2-10 94- 5 3- 1 93-22 96- 3 96-29 94-23 95-17 96-18 3-12 96-18 MIN. QFE PRESSURE IN HPA 863.1 867.7 869.3 867.7 869.2 865.4 866.6 870.0 871.7 874.3 874.2 870.0 863.1 YEAR-DAY 98-13 1-21 95-26 2- 4 1-30 99-25 98- 5 94- 1 96-22 96-27 1-17 94- 4 98-13 MEAN QNH PRESSURE IN HPA 1020.4 1018.1 1016.8 1015.9 1015.8 1012.4 1011.4 1013.7 1016.9 1021.1 1022.3 1022.3 1017.3 MAX. QNH PRESSURE IN HPA 1033.0 1030.8 1031.0 1030.0 1026.1 1021.9 1020.4 1022.2 1027.9 1030.9 1035.7 1033.4 1035.7 YEAR-DAY 99- 2 1- 9 2-10 94- 5 3- 1 93-22 96- 3 96-29 94-23 95-17 96-18 3-12 96-18 MIN. QNH PRESSURE IN HPA 998.7 1003.9 1005.7 1003.9 1005.6 1001.3 1002.7 1006.5 1008.4 1011.3 1011.2 1006.5 998.7 YEAR-DAY 98-13 1-21 95-26 2- 4 1-30 99-25 98- 5 94- 1 96-22 96-27 1-17 94- 4 98-13 MEAN QFF PRESSURE IN HPA 1024.2 1020.5 1017.1 1012.3 1009.8 1003.6 1001.7 1005.0 1011.0 1018.5 1022.9 1024.9 1014.3 MAX. QFF PRESSURE IN HPA 1040.1 1035.0 1038.2 1032.7 1026.2 1014.8 1010.4 1017.8 1024.4 1031.9 1040.8 1042.5 1042.5 YEAR-DAY 99- 2 0-10 92-12 94- 5 3- 1 93-22 96- 3 96-30 94-22 95-17 96-18 3-12 3-12 MIN. QFF PRESSURE IN HPA 999.7 1002.5 1001.9 1000.1 994.9 990.4 990.0 995.2 999.3 1004.1 1008.8 1005.1 990.0 YEAR-DAY 98-13 1-21 95-26 97-10 0-27 2-20 98- 6 94- 2 0- 1 98- 2 99- 1 94- 4 98- 6 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 883.2 881.0 880.1 879.3 879.7 876.4 875.4 877.8 880.9 883.7 884.8 884.1 880.5 MAX. QFE PRESSURE IN HPA 892.3 892.2 893.0 890.6 889.1 885.3 881.5 885.2 890.0 892.8 897.2 893.7 897.2 YEAR-DAY 96-10 1- 9 2-10 94- 5 3- 1 93-22 93-27 92-31 94-22 95-17 96-18 2- 3 96-18 MIN. QFE PRESSURE IN HPA 871.0 866.5 870.0 868.6 871.3 866.8 868.8 871.7 872.6 875.4 873.7 870.3 866.5 YEAR-DAY 97-17 1-21 97-25 2- 3 94- 1 2-20 95- 1 2-17 0- 1 96-27 95-25 94- 4 1-21 MEAN QNH PRESSURE IN HPA 1021.3 1018.8 1017.8 1017.0 1017.4 1013.7 1012.5 1015.3 1018.7 1021.9 1023.1 1022.4 1018.3 MAX. QNH PRESSURE IN HPA 1031.6 1031.5 1032.4 1029.7 1028.0 1023.7 1019.4 1023.6 1029.0 1032.1 1037.1 1033.1 1037.1 YEAR-DAY 96-10 1- 9 2-10 94- 5 3- 1 93-22 93-27 92-31 94-22 95-17 96-18 2- 3 96-18 MIN. QNH PRESSURE IN HPA 1007.6 1002.5 1006.5 1004.9 1007.9 1002.9 1005.1 1008.4 1009.4 1012.6 1010.6 1006.8 1002.5 YEAR-DAY 97-17 1-21 97-25 2- 3 94- 1 2-20 95- 1 2-17 0- 1 96-27 95-25 94- 4 1-21 MEAN QFF PRESSURE IN HPA 1024.8 1020.7 1017.5 1012.9 1011.3 1004.8 1002.4 1006.1 1012.0 1018.2 1022.8 1024.7 1014.8 MAX. QFF PRESSURE IN HPA 1039.4 1034.9 1035.3 1033.1 1028.8 1016.6 1010.9 1019.4 1024.8 1032.3 1041.4 1042.6 1042.6 YEAR-DAY 96-10 1- 9 92-12 94- 5 3- 1 93-22 2- 2 92-31 94-22 95-17 96-18 3-12 3-12 MIN. QFF PRESSURE IN HPA 1009.0 1001.3 1000.9 999.4 997.4 990.4 993.1 997.6 999.8 1006.2 1008.3 1005.4 990.4 YEAR-DAY 97-17 1-21 2-28 97-10 1-30 2-20 95-16 2- 8 0- 1 96-14 95-11 94- 4 2-20 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 882.9 880.6 879.8 879.1 879.6 876.4 875.6 878.0 880.8 883.6 884.4 883.8 880.4 MAX. QFE PRESSURE IN HPA 891.4 892.2 892.7 890.1 888.6 885.1 881.7 885.2 890.0 892.6 896.4 893.6 896.4 YEAR-DAY 96- 9 1- 9 2-10 94- 5 3- 1 93-22 2- 2 92-31 94-22 95-17 96-18 2- 3 96-18 MIN. QFE PRESSURE IN HPA 869.9 866.8 870.3 866.1 870.2 867.3 869.2 871.7 872.8 875.4 869.4 870.3 866.1 YEAR-DAY 97-31 3-20 95-26 2- 3 97- 4 2-20 95-16 2-17 0- 1 96-27 95-25 94- 3 2- 3 MEAN QNH PRESSURE IN HPA 1021.0 1018.4 1017.6 1016.8 1017.3 1013.7 1012.8 1015.5 1018.7 1021.8 1022.7 1022.0 1018.2 MAX. QNH PRESSURE IN HPA 1030.6 1031.5 1032.0 1029.1 1027.4 1023.5 1019.6 1023.6 1029.0 1031.9 1036.2 1033.0 1036.2 YEAR-DAY 96- 9 1- 9 2-10 94- 5 3- 1 93-22 2- 2 92-31 94-22 95-17 96-18 2- 3 96-18 MIN. QNH PRESSURE IN HPA 1006.4 1002.9 1006.8 1002.1 1006.7 1003.4 1005.6 1008.4 1009.6 1012.6 1005.8 1006.8 1002.1 YEAR-DAY 97-31 3-20 95-26 2- 3 97- 4 2-20 95-16 2-17 0- 1 96-27 95-25 94- 3 2- 3 MEAN QFF PRESSURE IN HPA 1023.6 1019.6 1016.7 1012.3 1010.8 1004.4 1002.3 1005.9 1011.2 1017.2 1021.5 1023.4 1014.1 MAX. QFF PRESSURE IN HPA 1038.5 1034.2 1035.3 1032.2 1027.9 1017.1 1010.8 1018.9 1023.9 1031.8 1039.7 1042.1 1042.1 YEAR-DAY 96-10 1- 9 92-12 94- 5 3- 1 93-22 2- 2 92-31 94-22 95-17 96-18 3-12 3-12 MIN. QFF PRESSURE IN HPA 1006.4 1000.7 1000.6 998.6 998.4 990.9 992.6 997.3 999.5 1005.7 1001.5 1002.8 990.9 YEAR-DAY 3-28 3-20 2-28 2- 3 97- 4 2-20 95-16 2- 8 0- 1 95-12 95-25 94- 3 2-20 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 1 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ***** 2.5 8.1 16.5 20.1 26.6 28.8 26.9 20.7 13.7 8.0 4.5 ****** 1992 -0.3 3.2 3.6 12.4 14.8 23.3 26.1 22.7 18.7 12.4 9.5 4.4 12.6 1993 -0.9 3.7 6.1 14.1 18.1 23.6 26.1 23.9 21.1 11.9 7.2 3.3 13.2 1994 3.3 3.3 10.2 14.2 20.9 27.8 27.4 28.4 17.3 13.8 11.3 2.0 15.0 1995 3.3 3.9 7.8 13.8 18.4 24.1 28.6 26.5 20.2 13.1 9.3 1.6 14.2 1996 0.4 4.0 7.0 14.4 21.3 27.6 29.0 27.0 24.3 13.8 6.3 4.6 15.0 1997 2.9 2.6 6.3 13.9 18.4 25.0 28.0 25.6 21.2 16.4 7.4 3.8 14.3 1998 1.9 3.5 9.7 18.2 21.1 26.5 29.3 28.2 23.9 17.4 12.9 9.1 16.8 1999 3.2 8.7 9.2 16.0 22.5 29.0 28.2 29.2 23.5 18.3 8.6 5.9 16.9 2000 3.9 4.2 8.4 18.9 26.6 27.1 28.0 25.8 22.3 14.4 6.2 4.3 15.8 2001 0.2 4.1 9.9 17.6 23.2 26.2 26.6 25.8 21.1 15.4 9.6 6.1 15.5 2002 3.0 5.0 10.0 14.1 19.6 25.6 26.3 26.6 21.8 17.9 8.5 1.4 15.0 2003 2.1 5.1 8.1 14.3 16.5 23.6 28.0 25.4 20.5 16.8 7.1 2.2 14.1 MEAN 1.9 4.1 8.0 15.3 20.1 25.9 27.7 26.3 21.3 15.0 8.6 4.1 14.9 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 2 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF MINIMUM TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 -2.4 -2.3 2.4 7.4 9.5 13.8 16.0 13.0 10.5 4.5 0.7 0.3 6.1 1992 -3.8 -1.0 -1.8 6.2 8.5 14.6 15.5 13.2 8.7 3.3 2.0 0.5 5.5 1993 -5.2 -0.6 0.5 7.6 11.4 14.3 16.4 14.0 11.3 3.0 1.2 -1.8 6.0 1994 -2.2 -3.5 3.1 6.3 11.6 16.5 17.1 16.3 7.3 5.6 5.1 -2.8 6.7 1995 -2.3 -1.6 1.8 7.6 9.0 13.7 18.3 16.0 10.7 4.6 0.9 -3.5 6.3 1996 -4.8 -1.1 2.3 6.6 10.7 15.7 17.4 14.3 12.8 5.6 -0.9 -1.7 6.4 1997 -2.4 -4.3 0.4 7.3 10.2 15.9 17.6 15.3 11.2 8.6 2.1 -0.5 6.8 1998 -2.8 -2.0 1.8 8.6 10.8 14.7 18.4 16.9 11.3 6.2 2.8 0.1 7.2 1999 -2.6 1.5 2.8 5.5 9.9 15.7 17.0 16.0 10.5 5.9 1.0 -2.3 6.7 2000 -3.8 -3.0 0.9 8.8 13.4 14.2 17.5 15.5 13.3 7.1 0.7 -0.2 7.0 2001 -4.8 -2.2 2.5 8.8 14.1 16.6 17.9 16.4 11.4 7.5 3.5 1.6 7.8 2002 -1.4 -0.3 3.0 8.1 11.7 16.7 16.5 16.4 10.9 8.8 2.5 -3.0 7.5 2003 -2.9 0.3 2.2 8.4 8.7 14.6 18.3 15.2 10.6 7.7 1.0 -2.4 6.8 MEAN -3.2 -1.5 1.7 7.5 10.7 15.2 17.2 15.3 10.8 6.0 1.7 -1.2 6.7 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 3 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF MAXIMUM TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 5.8 6.6 12.1 20.9 25.5 31.7 34.1 33.4 29.4 21.8 15.5 9.7 20.6 1992 4.6 8.9 9.3 19.2 21.4 31.1 34.5 30.6 28.3 22.8 18.9 10.0 20.0 1993 4.1 9.2 12.2 21.4 25.1 31.5 33.5 32.0 30.7 20.8 14.4 10.4 20.4 1994 8.1 8.6 16.6 22.1 28.3 33.6 35.2 34.9 26.2 20.7 18.5 8.6 21.8 1995 10.6 10.7 14.4 21.0 26.5 32.3 36.9 35.6 29.6 22.6 19.1 8.0 22.3 1996 7.0 9.9 11.9 20.3 26.2 32.5 33.7 33.0 32.5 22.9 14.9 12.8 21.5 1997 9.8 10.7 13.1 20.9 25.7 32.8 36.1 35.0 30.5 24.9 14.1 8.8 21.9 1998 6.5 7.6 14.8 23.4 26.1 32.1 35.1 33.6 30.2 24.5 19.5 15.7 22.4 1999 8.1 13.4 13.6 21.6 28.3 34.0 33.3 34.6 30.1 25.2 13.5 11.8 22.3 2000 8.8 8.9 15.7 26.7 32.1 31.8 33.5 33.6 30.8 22.5 12.9 10.5 22.3 2001 6.7 11.1 17.7 26.0 31.2 34.1 34.0 33.9 30.0 24.1 17.0 11.6 23.1 2002 8.6 11.2 17.7 20.9 27.5 33.3 33.6 35.2 31.7 27.5 15.9 7.2 22.5 2003 8.7 10.8 14.7 21.5 24.0 31.8 36.2 33.3 29.3 26.8 14.8 8.2 21.7 MEAN 7.5 9.8 14.1 22.0 26.8 32.5 34.6 33.7 30.0 23.6 16.1 10.2 21.7 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 4 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 8.2 8.9 9.7 13.5 16.0 17.9 18.1 20.4 18.9 17.3 14.8 9.4 14.5 1992 8.4 9.9 11.1 13.0 12.9 16.5 19.0 17.4 19.6 19.5 16.9 9.5 14.5 1993 9.3 9.8 11.7 13.8 13.7 17.2 17.1 18.0 19.4 17.8 13.2 12.2 14.4 1994 10.3 12.1 13.5 15.8 16.7 17.1 18.1 18.6 18.9 15.1 13.4 11.4 15.1 1995 12.9 12.3 12.6 13.4 17.5 18.6 18.6 19.6 18.9 18.0 18.2 11.5 16.0 1996 11.8 11.0 9.6 13.7 15.5 16.8 16.3 18.7 19.7 17.3 15.8 14.5 15.1 1997 12.2 15.0 12.7 13.6 15.5 16.9 18.5 19.7 19.3 16.3 12.0 9.3 15.1 1998 9.3 9.6 13.0 14.8 15.3 17.4 16.7 16.7 18.9 18.3 16.7 15.6 15.2 1999 10.7 11.9 10.8 16.1 18.4 18.3 16.3 18.6 19.6 19.3 12.5 14.1 15.6 2000 12.6 11.9 14.8 17.9 18.7 17.6 16.0 18.1 17.5 15.4 12.2 10.7 15.3 2001 11.5 13.3 15.2 17.2 17.1 17.5 16.1 17.5 18.6 16.6 13.5 10.0 15.3 2002 10.0 11.5 14.7 12.8 15.8 16.6 17.1 18.8 20.8 18.7 13.4 10.2 15.0 2003 11.6 10.5 12.5 13.1 15.3 17.2 17.9 18.1 18.7 19.1 13.8 10.6 14.9 MEAN 10.7 11.3 12.4 14.5 16.1 17.3 17.4 18.4 19.2 17.6 14.4 11.4 15.0 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 5 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF MEAN DAILY TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 1.7 2.2 7.3 14.2 17.5 22.7 25.1 23.2 20.0 13.1 8.1 5.0 13.3 1992 0.4 3.9 3.7 12.7 14.9 22.9 25.0 21.9 18.5 13.0 10.4 5.2 12.7 1993 -0.6 4.3 6.4 14.5 18.3 22.9 25.0 23.0 21.0 11.9 7.8 4.3 13.2 1994 3.0 2.5 9.9 14.2 20.0 25.0 26.2 25.6 16.7 13.1 11.8 2.9 14.2 1995 4.2 4.6 8.1 14.3 17.8 23.0 27.6 25.8 20.2 13.6 10.0 2.3 14.3 1996 1.1 4.4 7.1 13.5 18.4 24.1 25.5 23.7 22.7 14.2 7.0 5.5 13.9 1997 3.7 3.2 6.7 14.1 17.9 24.4 26.9 25.1 20.8 16.8 8.1 4.1 14.3 1998 1.8 2.8 8.3 16.0 18.5 23.4 26.7 25.3 20.7 15.3 11.1 7.9 14.8 1999 2.7 7.5 8.2 13.5 19.1 24.9 25.2 25.3 20.3 15.5 7.3 4.7 14.5 2000 2.5 3.0 8.3 17.7 22.7 23.0 25.5 24.6 22.0 14.8 6.8 5.2 14.7 2001 1.0 4.5 10.1 17.4 22.7 25.3 25.9 25.1 20.7 15.8 10.3 6.6 15.4 2002 3.6 5.4 10.4 14.5 19.6 25.0 25.1 25.8 21.3 18.2 9.2 2.1 15.0 2003 2.9 5.6 8.5 15.0 16.4 23.2 27.3 24.3 20.0 17.2 7.9 2.9 14.2 MEAN 2.1 4.1 7.9 14.7 18.7 23.8 25.9 24.5 20.4 14.8 8.9 4.5 14.2 SD 1.39 1.46 1.77 1.48 2.19 0.97 0.93 1.22 1.49 1.86 1.66 1.69 1.51 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 6 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M TEMPERATURE RECORDS LOWEST IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 -7.2 -12.0 -7.6 2.4 4.2 7.8 12.0 6.2 2.0 -1.0 -7.0 -5.8 -12.0 DAY 16 14 12 8 6 24 15 23 29 14 25 21 1992 -17.6 -8.0 -15.8 0.0 -0.6 11.6 11.2 7.4 3.4 -4.0 -4.8 -4.8 -17.6 DAY 29 17 12 4 4 16 17 19 13 19 21 29 1993 -12.6 -6.4 -12.8 1.0 3.0 11.2 12.2 9.2 6.0 -3.5 -7.2 -5.6 -12.8 DAY 21 17 3 2 11 24 30 4 28 9 23 1 1994 -7.4 -10.0 -1.8 -3.8 6.2 11.0 10.6 12.2 3.0 -0.6 -2.0 -11.6 -11.6 DAY 11 20 3 6 8 6 16 19 8 26 11 8 1995 -7.0 -11.4 -6.6 -0.4 3.4 7.6 13.2 10.8 5.2 -7.6 -8.6 -8.4 -11.4 DAY 10 26 6 8 21 2 27 8 4 19 29 21 1996 -12.0 -9.6 -2.6 -2.5 2.4 9.0 14.8 3.6 5.4 -1.2 -5.8 -10.0 -12.0 DAY 15 4 1 5 3 18 12 31 1 3 19 6 1997 -5.6 -10.2 -6.4 -0.4 4.6 10.6 13.4 7.4 6.4 2.0 -5.6 -8.0 -10.2 DAY 25 2 9 13 7 3 1 27 10 21 26 19 1998 -12.8 -9.0 -9.0 1.6 1.6 11.4 13.0 12.0 5.6 -1.6 -1.4 -5.0 -12.8 DAY 15 11 3 8 4 12 3 26 13 11 25 23 1999 -11.4 -3.2 -3.2 -2.0 5.8 10.4 11.0 11.6 3.2 1.0 -4.0 -7.8 -11.4 DAY 3 2 7 24 13 18 14 17 30 28 22 1 2000 -13.0 -14.8 -6.2 0.6 8.6 6.8 11.0 11.0 8.5 3.2 -4.2 -5.0 -14.8 DAY 12 9 17 1 12 14 26 14 21 9 18 31 2001 -14.0 -8.2 -5.0 4.2 9.4 11.8 11.6 11.2 2.6 -0.8 -1.6 -2.4 -14.0 DAY 30 1 12 2 2 5 31 15 21 12 21 4 2002 -7.8 -8.6 -4.2 2.0 5.4 11.4 12.4 10.2 5.6 3.8 -2.4 -11.0 -11.0 DAY 19 6 1 1 2 9 24 15 9 21 19 4 2003 -13.2 -5.4 -8.2 0.0 0.0 8.4 14.0 10.8 0.8 2.6 -5.6 -13.0 -13.2 DAY 22 18 3 18 2 7 6 31 28 14 24 13 1991-2003 -17.6 -14.8 -15.8 -3.8 -0.6 6.8 10.6 3.6 0.8 -7.6 -8.6 -13.0 -17.6 YEAR-DAY 92-29 0- 9 92-12 94- 6 92- 4 0-14 94-16 96-31 3-28 95-19 95-29 3-13 92 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 7 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M TEMPERATURE RECORDS HIGHEST IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 12.0 15.4 19.6 28.2 35.6 35.8 41.0 38.5 38.0 25.4 26.0 17.4 41.0 DAY 31 27 30 22 31 12 8 6 9 27 4 1 1992 13.2 18.4 17.8 28.2 29.2 38.4 38.0 36.0 34.2 28.0 24.8 16.4 38.4 DAY 21 23 30 14 30 19 6 25 25 12 14 16 1993 13.8 15.4 20.6 29.2 32.2 37.6 36.6 36.4 35.6 32.0 24.4 16.0 37.6 DAY 29 12 30 20 27 19 3 28 4 1 1 23 1994 15.8 16.4 24.2 33.2 32.6 38.8 38.5 39.2 32.4 26.4 23.4 17.6 39.2 DAY 5 28 22 26 14 17 7 1 1 20 5 20 1995 16.4 17.0 22.6 29.2 34.1 39.4 40.6 39.6 35.6 30.8 26.8 12.8 40.6 DAY 30 4 26 4 7 30 16 23 20 5 11 4 1996 16.0 16.0 21.2 28.0 34.0 38.2 36.2 37.6 38.6 29.5 23.4 19.2 38.6 DAY 6 10 31 23 31 3 8 27 9 14 8 29 1997 17.2 21.0 23.2 27.6 34.0 37.2 39.2 39.8 37.8 32.0 22.0 17.2 39.8 DAY 2 22 24 28 28 16 18 15 1 3 5 10 1998 12.4 17.0 24.5 31.8 33.8 37.6 41.6 37.0 36.6 33.6 26.2 24.2 41.6 DAY 26 8 29 18 22 28 6 18 6 2 1 12 1999 16.2 20.6 21.6 27.8 35.0 39.8 39.0 38.2 36.8 31.0 23.2 16.0 39.8 DAY 16 27 27 30 20 29 5 30 13 12 1 30 2000 16.8 17.2 24.4 32.6 38.0 38.2 35.6 37.0 34.6 28.2 23.2 16.0 38.2 DAY 2 25 25 10 27 24 8 1 1 12 2 22 2001 16.8 16.0 25.0 31.6 37.4 39.4 39.0 38.8 36.4 31.4 24.4 17.4 39.4 DAY 4 18 23 7 16 27 11 31 8 1 7 30 2002 18.0 19.8 27.6 30.0 36.4 38.8 39.2 40.0 37.0 33.2 23.0 14.6 40.0 DAY 4 13 28 19 30 20 19 10 12 5 1 13 2003 15.4 18.0 22.6 31.6 30.2 36.6 41.0 36.0 36.0 31.6 27.0 17.4 41.0 DAY 14 10 21 8 31 23 18 15 19 4 1 20 1991-2003 18.0 21.0 27.6 33.2 38.0 39.8 41.6 40.0 38.6 33.6 27.0 24.2 41.6 YEAR-DAY 2- 4 97-22 2-28 94-26 0-27 99-29 98- 6 2-10 96- 9 98- 2 3- 1 98-12 98 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 8 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M 0C COOLING DEGREE DAYS (BASE 21) YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 0.0 0.0 0.0 0.0 7.3 57.9 126.2 72.6 32.0 0.0 0.0 0.0 296.1 1992 0.0 0.0 0.0 0.0 0.0 62.1 108.2 48.5 4.9 0.0 0.0 0.0 223.7 1993 0.0 0.0 0.0 0.7 8.5 64.3 122.8 64.9 29.9 0.1 0.0 0.0 291.2 1994 0.0 0.0 0.0 8.4 17.2 121.2 160.2 142.4 1.0 0.0 0.0 0.0 450.6 1995 0.0 0.0 0.0 0.0 7.3 69.7 205.5 147.5 24.7 0.2 0.0 0.0 454.9 1996 0.0 0.0 0.0 0.0 11.4 98.8 140.9 92.7 62.4 0.0 0.0 0.0 406.3 1997 0.0 0.0 0.0 0.0 14.5 101.6 182.3 134.0 35.9 4.6 0.0 0.0 472.9 1998 0.0 0.0 0.0 2.4 18.3 75.5 178.1 132.0 36.7 5.7 0.0 0.0 448.8 1999 0.0 0.0 0.0 0.0 14.9 117.1 129.9 133.6 27.4 0.0 0.0 0.0 422.9 2000 0.0 0.0 0.0 8.1 59.1 79.7 139.4 110.2 45.7 0.0 0.0 0.0 442.2 2001 0.0 0.0 0.0 4.6 56.3 130.6 153.1 128.4 41.4 0.5 0.0 0.0 514.9 2002 0.0 0.0 0.0 2.7 27.3 121.1 125.9 149.2 31.4 4.6 0.0 0.0 462.2 2003 0.0 0.0 0.0 5.1 1.7 75.5 193.9 101.1 27.8 1.0 0.0 0.0 406.1 MEAN 0.0 0.0 0.0 2.5 18.8 90.4 151.3 112.1 30.9 1.3 0.0 0.0 407.3 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 9 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M 0C HEATING DEGREE DAYS (BASE 18) YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 308.3 385.8 255.2 99.5 40.0 0.6 0.0 0.0 31.2 151.1 295.8 402.7 1970.1 1992 515.8 408.0 442.4 120.7 106.9 0.0 0.0 2.0 19.7 153.8 227.4 396.0 2392.8 1993 575.1 384.3 360.8 113.7 38.5 0.0 0.0 0.0 3.1 195.6 306.7 424.9 2402.8 1994 466.5 432.7 252.5 139.1 10.9 0.0 0.0 0.0 52.3 150.8 186.8 467.4 2158.9 1995 429.2 376.5 307.2 114.5 32.7 0.6 0.0 0.0 11.9 146.6 240.3 488.0 2147.5 1996 525.0 394.1 337.4 141.4 33.3 0.0 0.0 2.0 0.3 121.0 329.8 386.8 2271.1 1997 444.3 413.5 349.2 118.7 48.4 0.0 0.0 0.0 6.5 67.2 297.0 429.6 2174.4 1998 502.0 424.7 301.4 85.1 46.8 0.0 0.0 0.0 8.8 105.9 205.6 312.8 1993.0 1999 473.2 295.2 303.5 135.2 20.7 0.0 0.0 0.0 15.2 82.3 321.9 411.4 2058.7 2000 479.8 435.3 303.0 47.7 0.0 5.7 0.0 0.0 1.3 103.4 336.0 398.2 2110.4 2001 528.2 378.8 245.8 44.2 0.0 0.0 0.0 0.0 19.0 78.0 231.8 353.3 1879.1 2002 446.0 351.8 236.9 116.7 22.7 0.0 0.0 0.0 0.7 31.0 264.2 493.0 1963.0 2003 469.0 348.0 295.4 119.9 77.3 1.4 0.0 0.0 27.5 45.4 304.3 468.0 2156.2 MEAN 474.0 386.8 307.0 107.4 36.8 0.6 0.0 0.3 15.2 110.1 272.9 417.9 2129.0 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 10 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ***** ***** ***** ***** ***** ***** ***** ***** 3.5 -0.2 -1.9 -0.8 ****** 1992 -4.5 -3.1 -2.3 3.7 6.8 8.8 4.6 4.9 0.4 -1.6 -2.6 0.8 1.3 1993 -5.2 -0.4 -0.9 4.7 9.2 7.3 5.6 5.9 7.0 -1.1 -1.6 -1.6 2.4 1994 -2.1 -4.9 2.0 2.6 3.3 2.9 5.2 10.4 0.4 2.3 1.5 -4.2 1.6 1995 -3.4 -2.3 -1.4 4.9 2.5 5.0 6.5 6.7 1.9 -3.0 -6.6 -4.7 0.5 1996 -5.9 -1.3 2.2 4.1 5.6 4.4 4.6 -0.3 3.2 -0.7 -3.1 -4.2 0.7 1997 -4.0 -6.9 -1.0 4.0 5.7 9.0 10.4 2.8 -0.5 3.5 1.6 -0.1 2.0 1998 -1.4 -1.9 0.6 6.2 7.7 8.5 9.4 8.0 2.7 0.3 0.6 -0.3 3.4 1999 -1.5 -0.5 0.9 2.1 3.5 3.4 6.0 2.5 1.2 1.3 2.0 -1.1 1.6 2000 -4.5 -3.1 -2.5 1.0 2.4 2.0 1.9 1.0 2.9 3.3 -0.4 0.4 0.4 2001 -4.9 -3.7 -0.7 3.3 4.5 2.6 4.7 4.8 0.4 1.4 -0.1 2.0 1.2 2002 -1.7 -1.2 -0.7 6.2 6.5 4.4 4.9 3.5 -1.3 2.3 1.0 -3.3 1.7 2003 -3.5 -1.1 -0.0 6.3 5.8 6.6 7.7 4.8 2.4 -0.9 -1.7 -2.4 2.0 MEAN -3.6 -2.5 -0.3 4.1 5.3 5.4 6.0 4.6 1.9 0.5 -0.9 -1.5 1.6 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 11 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ***** ***** ***** ***** ***** ***** ***** ***** 5.82 4.43 3.90 4.28 ***** 1992 3.31 3.58 3.89 5.85 7.27 8.38 6.25 6.43 4.71 4.01 3.73 4.72 5.18 1993 3.02 4.37 4.30 6.31 8.59 7.64 6.68 6.79 7.26 4.27 4.04 3.88 5.60 1994 3.86 3.17 5.22 5.50 5.75 5.62 6.53 9.34 4.58 5.35 5.11 3.38 5.28 1995 3.45 3.84 4.23 6.51 5.62 6.51 7.22 7.37 5.32 3.92 2.83 3.19 5.00 1996 2.95 4.10 5.25 6.26 6.71 6.30 6.19 4.60 5.73 4.49 3.51 3.32 4.95 1997 3.29 2.78 4.21 6.15 6.71 8.58 9.59 5.81 4.38 5.82 5.09 4.36 5.57 1998 4.02 3.89 4.71 7.00 7.69 8.08 8.73 8.00 5.79 4.70 4.62 4.34 5.96 1999 4.08 4.34 4.81 5.31 5.90 5.96 6.92 5.37 5.09 4.92 5.23 4.05 5.16 2000 3.31 3.57 3.73 4.87 5.42 5.33 5.22 4.95 5.61 5.65 4.28 4.56 4.71 2001 3.09 3.46 4.31 5.67 6.26 5.55 6.32 6.33 4.75 5.04 4.41 5.10 5.02 2002 3.92 4.07 4.36 6.94 7.10 6.20 6.39 5.87 4.17 5.30 4.83 3.64 5.23 2003 3.42 4.12 4.57 7.10 6.75 7.14 7.76 6.34 5.47 4.26 3.95 3.83 5.39 MEAN 3.48 3.77 4.46 6.12 6.65 6.77 6.98 6.43 5.28 4.78 4.27 4.05 5.25 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 12 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ***** ***** ***** ***** ***** ***** ***** ***** 8.16 6.25 5.51 6.02 ***** 1992 4.66 5.02 5.46 8.18 10.16 11.65 8.71 8.99 6.62 5.66 5.27 6.64 7.25 1993 4.27 6.15 6.04 8.81 11.96 10.64 9.31 9.49 10.15 6.03 5.70 5.48 7.84 1994 5.44 4.45 7.32 7.70 8.04 7.83 9.08 12.95 6.45 7.54 7.17 4.77 7.40 1995 4.88 5.40 5.93 9.09 7.88 9.07 10.01 10.26 7.45 5.52 3.99 4.52 7.00 1996 4.16 5.77 7.35 8.75 9.38 8.79 8.64 6.44 8.01 6.32 4.98 4.70 6.94 1997 4.64 3.92 5.89 8.59 9.40 11.92 13.26 8.11 6.16 8.18 7.18 6.14 7.78 1998 5.65 5.47 6.60 9.77 10.74 11.26 12.11 11.15 8.10 6.62 6.52 6.13 8.34 1999 5.75 6.09 6.74 7.45 8.25 8.30 9.62 7.50 7.13 6.92 7.36 5.73 7.24 2000 4.65 5.02 5.24 6.82 7.57 7.44 7.29 6.92 7.85 7.94 6.05 6.43 6.60 2001 4.37 4.87 6.04 7.94 8.73 7.74 8.80 8.84 6.66 7.09 6.21 7.19 7.04 2002 5.52 5.73 6.12 9.68 9.90 8.63 8.92 8.19 5.86 7.46 6.81 5.13 7.33 2003 4.82 5.78 6.40 9.92 9.45 9.94 10.77 8.86 7.67 6.00 5.57 5.42 7.55 MEAN 4.90 5.30 6.26 8.56 9.29 9.43 9.71 8.98 7.41 6.73 6.02 5.72 7.36 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 13 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ***** ***** ***** ***** ***** ***** ***** ***** 18.49 10.52 6.03 2.91 ***** 1992 1.79 3.14 2.99 6.94 7.77 18.66 26.93 20.02 16.52 10.23 7.85 2.03 10.41 1993 1.76 2.19 4.04 8.27 10.01 20.41 25.92 21.55 16.79 9.20 5.46 2.63 10.69 1994 2.64 3.84 5.86 10.32 18.17 31.04 28.97 27.44 14.62 9.30 7.01 2.89 13.51 1995 3.26 3.20 5.33 7.62 14.50 22.69 31.08 26.50 18.14 11.34 9.25 2.64 12.96 1996 2.68 2.84 3.26 8.99 17.24 29.58 32.39 31.04 24.88 10.73 5.37 4.43 14.45 1997 3.29 4.20 4.37 8.28 13.14 21.31 26.47 26.97 21.09 11.83 3.71 2.16 12.24 1998 1.61 2.89 6.69 12.52 15.74 24.67 30.47 28.36 23.84 15.13 9.36 6.20 14.79 1999 2.34 5.72 5.68 11.85 20.59 33.29 30.08 34.46 24.02 15.74 4.49 4.08 16.03 2000 4.06 3.67 6.87 16.77 28.91 30.18 31.76 28.03 20.65 9.45 4.00 2.20 15.55 2001 2.33 3.80 7.34 13.58 21.27 28.07 27.45 25.96 20.44 11.69 6.51 2.57 14.25 2002 2.64 3.60 7.41 7.43 14.61 26.03 26.75 28.64 22.21 14.74 5.05 1.96 13.42 2003 2.71 3.44 5.25 7.99 10.66 20.75 28.75 24.98 18.41 14.62 5.42 2.29 12.11 MEAN 2.59 3.54 5.42 10.05 16.05 25.56 28.92 27.00 20.01 11.89 6.11 3.00 13.34 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 14 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 *** *** *** *** *** *** *** *** 37 42 54 72 *** 1992 75 67 69 61 63 46 28 35 33 42 48 80 54 1993 75 78 66 60 61 42 30 34 43 44 58 73 55 1994 71 60 63 51 37 23 27 35 34 51 56 68 48 1995 67 69 59 62 41 34 27 32 35 38 37 67 47 1996 66 72 75 55 40 26 23 20 31 43 56 57 47 1997 64 55 65 56 49 41 36 26 27 48 71 78 51 1998 80 72 59 51 46 34 31 31 29 38 48 56 48 1999 74 58 63 45 34 23 27 20 29 37 67 64 45 2000 59 64 53 35 24 24 20 23 33 52 67 79 44 2001 72 63 55 44 34 25 27 29 28 44 55 78 46 2002 74 69 55 64 49 29 28 26 25 39 64 75 50 2003 71 69 62 65 54 38 31 29 34 34 59 74 52 MEAN 71 66 62 54 44 32 28 28 32 42 57 71 49 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 15 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 *** *** *** *** *** *** *** *** 57 64 76 87 *** 1992 88 87 88 85 85 72 46 54 56 64 72 95 74 1993 90 95 90 83 87 71 49 52 64 67 80 92 77 1994 91 85 90 80 62 40 43 50 48 76 80 89 70 1995 90 90 87 84 71 58 44 48 55 61 58 89 70 1996 88 92 94 80 64 43 38 37 50 65 80 80 68 1997 85 82 88 83 76 67 53 43 46 69 91 93 73 1998 93 91 84 80 68 52 49 52 50 65 73 79 70 1999 91 86 86 76 58 38 46 34 52 65 86 86 67 2000 80 86 81 60 44 40 34 37 52 77 87 94 64 2001 90 87 82 70 55 40 42 45 47 66 79 93 66 2002 91 89 81 88 75 48 44 42 42 60 86 90 70 2003 88 89 88 87 82 62 47 46 54 56 80 89 72 MEAN 89 88 87 80 69 53 45 45 52 66 79 89 70 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 16 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 *** *** *** *** *** *** *** *** 19 25 34 49 *** 1992 55 41 45 37 41 22 14 20 16 21 23 57 33 1993 53 55 41 34 34 20 16 20 25 25 37 48 34 1994 52 41 37 25 17 13 14 24 22 30 32 38 29 1995 36 41 32 38 17 16 15 18 19 18 18 42 26 1996 39 48 53 35 26 17 15 11 15 23 31 31 29 1997 39 27 38 30 24 21 23 12 13 27 45 55 30 1998 62 55 42 33 33 23 22 21 17 21 31 40 33 1999 58 38 45 27 21 14 18 13 16 22 52 44 31 2000 40 44 28 17 14 15 13 11 16 29 41 53 27 2001 49 35 29 20 17 13 15 16 15 24 32 55 27 2002 51 45 29 38 25 15 17 13 12 20 38 51 30 2003 47 44 36 40 30 19 17 17 18 17 34 51 31 MEAN 48 43 38 31 25 17 17 16 17 23 34 47 30 RH=0 =====> RELATIVE HUMIDITY < 0.5% =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 17 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF RELATIVE HUMIDITY AT 03 UTC. IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 *** *** *** *** *** *** *** *** 53 61 72 83 *** 1992 83 76 81 79 79 63 39 50 50 60 65 92 68 1993 86 89 86 77 79 57 42 50 62 62 77 90 71 1994 89 84 84 76 55 40 40 49 47 75 74 85 67 1995 87 86 82 79 60 48 40 45 50 57 52 85 64 1996 82 85 90 78 63 43 38 37 48 61 77 75 65 1997 80 78 81 77 68 58 47 41 43 66 88 89 68 1998 89 88 81 79 68 51 48 51 50 65 73 78 68 1999 88 83 85 76 57 38 45 34 51 65 85 85 66 2000 78 83 76 57 44 39 33 36 47 72 84 91 62 2001 84 83 78 69 50 37 40 43 45 63 71 90 63 2002 84 87 75 84 66 41 40 39 40 57 82 85 65 2003 84 85 82 83 70 53 44 43 52 52 73 84 67 MEAN 85 84 82 76 63 47 41 43 49 63 75 86 66 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 18 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF RELATIVE HUMIDITY AT 09 UTC. IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 *** *** *** *** *** *** *** *** 24 29 39 56 *** 1992 63 52 53 44 47 27 17 23 20 26 30 63 39 1993 58 63 48 38 40 24 18 24 29 30 42 53 39 1994 59 47 44 31 20 16 18 26 24 34 36 47 34 1995 45 53 40 43 22 18 18 21 23 23 23 50 32 1996 49 56 62 42 31 19 18 14 19 29 35 38 34 1997 47 35 46 36 29 23 26 17 16 31 51 62 35 1998 71 61 48 39 37 25 25 25 21 27 37 44 38 1999 65 44 51 34 27 17 21 16 21 26 58 50 36 2000 48 50 35 20 17 19 16 15 19 35 47 60 32 2001 55 41 33 24 20 15 19 19 17 29 38 62 31 2002 58 53 36 43 31 18 19 16 14 24 43 61 35 2003 56 53 44 46 35 23 20 20 22 19 38 57 36 MEAN 56 51 45 37 30 20 20 20 21 28 40 54 35 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 19 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF RELATIVE HUMIDITY AT 15 UTC. IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 *** *** *** *** *** *** *** *** 27 36 49 73 *** 1992 77 66 65 47 50 34 18 27 26 37 46 82 48 1993 76 75 58 53 54 28 21 23 34 39 54 74 49 1994 77 59 56 35 26 17 18 34 29 46 52 65 43 1995 59 62 45 51 30 22 18 23 27 30 33 61 38 1996 58 68 73 51 36 23 18 15 23 35 50 51 42 1997 61 40 59 45 36 31 29 15 18 43 69 77 44 1998 83 73 56 48 42 28 26 24 22 33 45 57 45 1999 75 56 59 35 26 18 21 15 22 33 69 68 41 2000 58 60 38 22 18 17 14 13 25 45 63 79 38 2001 68 54 42 31 23 17 19 19 20 35 51 76 38 2002 70 62 43 55 39 20 20 18 17 33 60 78 43 2003 69 62 52 57 40 28 22 20 24 27 54 75 44 MEAN 69 61 54 44 35 24 20 21 24 36 53 70 43 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 20 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF DAYS WITH MAXIMUM TEMPERATURE EQUAL 30 AND ABOVE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 0 0 0 0 4 22 30 31 18 0 0 0 105 1992 0 0 0 0 0 17 27 18 7 0 0 0 69 1993 0 0 0 0 4 19 31 28 20 2 0 0 104 1994 0 0 0 4 11 30 31 31 3 0 0 0 110 1995 0 0 0 0 4 24 31 31 14 3 0 0 107 1996 0 0 0 0 7 23 30 25 24 0 0 0 109 1997 0 0 0 0 8 26 31 30 18 5 0 0 118 1998 0 0 0 2 7 27 31 29 14 3 0 0 113 1999 0 0 0 0 13 29 28 31 19 1 0 0 121 2000 0 0 0 8 24 21 30 31 20 0 0 0 134 2001 0 0 0 4 20 28 31 28 18 2 0 0 131 2002 0 0 0 2 10 24 30 30 22 11 0 0 129 2003 0 0 0 5 2 23 31 31 17 2 0 0 111 MEAN 0.0 0.0 0.0 1.9 8.8 24.1 30.2 28.8 16.5 2.2 0.0 0.0 112.5 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 21 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF DAYS WITH MAXIMUM TEMPERATURE EQUAL 00 AND BELOW YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 0 3 0 0 0 0 0 0 0 0 0 0 3 1992 6 0 2 0 0 0 0 0 0 0 0 0 8 1993 5 0 0 0 0 0 0 0 0 0 0 0 5 1994 0 0 0 0 0 0 0 0 0 0 0 1 1 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 1 0 0 0 0 0 0 0 0 0 0 0 1 1997 0 1 0 0 0 0 0 0 0 0 0 1 2 1998 0 3 0 0 0 0 0 0 0 0 0 0 3 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 2 2 0 0 0 0 0 0 0 0 0 0 4 2001 4 0 1 0 0 0 0 0 0 0 0 0 5 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 1 0 0 0 0 0 0 0 0 0 0 2 3 MEAN 1.5 0.7 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 2.7 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 22 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF DAYS WITH MINIMUM TEMPERATURE EQUAL 21 AND ABOVE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 0 0 0 0 0 0 1 0 0 0 0 0 1 1992 0 0 0 0 0 1 0 0 0 0 0 0 1 1993 0 0 0 0 0 0 0 0 0 0 0 0 0 1994 0 0 0 0 0 1 0 0 0 0 0 0 1 1995 0 0 0 0 0 0 4 0 0 0 0 0 4 1996 0 0 0 0 0 1 1 1 0 0 0 0 3 1997 0 0 0 0 0 0 2 0 0 0 0 0 2 1998 0 0 0 0 0 0 7 3 0 0 0 0 10 1999 0 0 0 0 0 1 6 2 0 0 0 0 9 2000 0 0 0 0 0 0 2 0 0 0 0 0 2 2001 0 0 0 0 0 2 1 1 0 0 0 0 4 2002 0 0 0 0 0 4 1 1 0 0 0 0 6 2003 0 0 0 0 0 0 4 1 0 0 0 0 5 MEAN 0.0 0.0 0.0 0.0 0.0 0.8 2.2 0.7 0.0 0.0 0.0 0.0 3.7 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 23 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF DAYS WITH MINIMUM TEMPERATURE EQUAL -4 AND BELOW YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 7 9 2 0 0 0 0 0 0 0 5 6 29 1992 10 8 8 0 0 0 0 0 0 1 4 1 32 1993 19 3 5 0 0 0 0 0 0 0 5 4 36 1994 11 11 0 0 0 0 0 0 0 0 0 15 37 1995 10 8 3 0 0 0 0 0 0 2 3 16 42 1996 17 9 0 0 0 0 0 0 0 0 5 10 41 1997 10 16 4 0 0 0 0 0 0 0 1 3 34 1998 10 8 4 0 0 0 0 0 0 0 0 3 25 1999 12 0 0 0 0 0 0 0 0 0 1 6 19 2000 15 10 3 0 0 0 0 0 0 0 1 2 31 2001 18 7 2 0 0 0 0 0 0 0 0 0 27 2002 10 3 1 0 0 0 0 0 0 0 0 11 25 2003 8 2 4 0 0 0 0 0 0 0 5 10 29 MEAN 12.1 7.2 2.8 0.0 0.0 0.0 0.0 0.0 0.0 0.2 2.3 6.7 31.3 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 24 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF DAYS WITH MINIMUM TEMPERATURE EQUAL 00 AND BELOW YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 19 17 7 0 0 0 0 0 0 2 12 16 73 1992 24 20 19 1 1 0 0 0 0 4 10 10 89 1993 29 19 15 0 0 0 0 0 0 6 13 25 107 1994 23 24 5 5 0 0 0 0 0 2 4 22 85 1995 27 21 11 1 0 0 0 0 0 9 16 26 111 1996 27 19 10 4 0 0 0 0 0 1 18 17 96 1997 25 24 16 1 0 0 0 0 0 0 8 20 94 1998 23 23 12 0 0 0 0 0 0 2 4 17 81 1999 22 11 8 2 0 0 0 0 0 0 13 26 82 2000 24 22 18 0 0 0 0 0 0 0 16 20 100 2001 29 23 9 0 0 0 0 0 0 1 5 10 77 2002 19 16 10 0 0 0 0 0 0 0 11 25 81 2003 27 14 10 2 1 0 0 0 0 0 13 23 90 MEAN 24.5 19.5 11.5 1.2 0.2 0.0 0.0 0.0 0.0 2.1 11.0 19.8 89.8 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 25 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MONTHLY TOTAL OF PRECIPITATION IN MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 39.4 33.3 89.7 29.4 17.8 0.0 0.2 0.0 0.1 0.6 1.8 100.7 313.0 1992 46.8 22.3 93.9 35.9 56.5 31.5 0.0 0.0 0.0 0.0 6.4 57.3 350.6 1993 21.5 77.5 61.7 67.7 71.9 2.7 1.0 0.5 0.0 1.0 10.7 6.4 322.6 1994 42.6 6.9 70.3 6.8 16.7 0.0 0.0 0.0 0.0 12.4 25.7 9.7 191.1 1995 9.0 69.2 30.9 39.6 4.9 4.3 0.0 0.0 7.2 0.4 2.2 6.8 174.5 1996 17.9 33.0 98.1 25.2 14.0 0.8 0.0 0.0 0.0 0.9 9.0 1.3 200.2 1997 22.0 3.4 78.8 43.0 32.7 11.1 0.0 0.0 0.0 16.3 22.2 31.6 261.1 1998 50.4 110.7 25.4 39.4 9.8 3.0 0.0 0.0 0.0 7.0 0.0 3.0 248.7 1999 48.3 29.9 72.8 9.2 9.4 4.0 7.4 0.0 3.2 0.6 18.1 9.3 212.2 2000 16.8 27.2 10.5 0.9 0.0 5.0 0.0 0.0 1.3 12.7 35.0 48.7 158.1 2001 21.7 18.3 38.7 1.4 16.5 2.3 3.0 0.1 3.0 2.4 17.2 53.4 178.0 2002 36.3 20.4 34.8 41.0 17.3 0.1 0.5 0.0 0.0 6.3 15.3 20.8 192.8 2003 53.3 21.7 40.8 71.5 13.4 9.0 0.0 0.0 0.0 0.0 17.7 13.2 240.6 MEAN 32.8 36.4 57.4 31.6 21.6 5.7 0.9 0.0 1.1 4.7 13.9 27.9 234.0 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 26 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M GREATEST DAILY OF PRECIPITATION IN MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 11.0 12.0 22.0 10.0 7.0 0.0 0.2 0.0 0.1 0.2 0.9 36.0 36.0 DAY 26 22 15 1 7 ** 14 ** 26 6 19 15 1992 14.4 14.0 25.0 15.6 19.3 14.0 0.0 0.0 0.0 0.0 6.0 17.0 25.0 DAY 22 11 10 19 13 6 ** ** ** ** 26 22 1993 8.0 20.9 17.7 21.5 26.0 1.0 1.0 0.5 0.0 1.0 9.0 5.0 26.0 DAY 9 5 2 13 29 1 28 17 ** 30 29 6 1994 9.0 3.0 28.2 3.0 10.4 0.0 0.0 0.0 0.0 8.0 9.2 4.5 28.2 DAY 3 4 13 19 1 ** ** ** ** 4 26 1 1995 4.1 20.0 12.0 13.0 2.0 4.0 0.0 0.0 5.2 0.4 1.2 2.1 20.0 DAY 18 24 18 16 1 28 ** ** 22 13 26 5 1996 7.5 16.1 18.0 10.0 4.0 0.8 0.0 0.0 0.0 0.6 9.0 0.5 18.0 DAY 20 3 3 4 26 28 ** ** ** 31 12 1 1997 10.0 2.1 18.0 27.0 11.0 5.3 0.0 0.0 0.0 9.0 16.1 11.0 27.0 DAY 17 28 27 20 6 19 ** ** ** 24 1 21 1998 13.7 29.0 14.0 22.0 3.0 2.0 0.0 0.0 0.0 7.0 0.0 2.0 29.0 DAY 6 10 2 6 13 21 ** ** ** 25 ** 25 1999 22.6 17.0 29.0 6.0 4.4 4.0 5.0 0.0 3.0 0.6 8.0 6.2 29.0 DAY 19 21 3 7 11 9 13 ** 28 26 9 17 2000 6.5 8.0 7.7 0.4 0.0 5.0 0.0 0.0 1.1 8.0 13.6 19.0 19.0 DAY 30 14 3 1 ** 13 ** ** 19 15 6 16 2001 9.0 11.0 18.1 1.0 7.0 2.0 3.0 0.1 3.0 2.3 14.0 14.0 18.1 DAY 20 19 11 10 4 21 19 12 1 23 19 2 2002 14.0 7.8 10.5 11.0 11.0 0.1 0.4 0.0 0.0 6.3 6.0 5.0 14.0 DAY 8 20 29 21 4 30 2 ** ** 15 14 11 2003 24.0 6.0 18.2 23.0 7.7 9.0 0.0 0.0 0.0 0.0 15.0 5.0 24.0 DAY 20 14 27 18 9 16 ** ** ** ** 15 4 1991-2003 24.0 29.0 29.0 27.0 26.0 14.0 5.0 0.5 5.2 9.0 16.1 36.0 36.0 YEAR-DAY 3-20 98-10 99- 3 97-20 93-29 92- 6 99-13 93-17 95-22 97-24 97- 1 91-15 91 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 27 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF DAYS WITH PRECIPITATION EQUAL TO OR GREATER THAN 10 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 1 1 3 1 0 0 0 0 0 0 0 4 10 1992 1 1 2 1 2 2 0 0 0 0 0 2 11 1993 0 2 2 3 3 0 0 0 0 0 0 0 10 1994 0 0 3 0 1 0 0 0 0 0 0 0 4 1995 0 2 1 1 0 0 0 0 0 0 0 0 4 1996 0 1 3 1 0 0 0 0 0 0 0 0 5 1997 1 0 2 1 1 0 0 0 0 0 1 1 7 1998 1 4 1 2 0 0 0 0 0 0 0 0 8 1999 2 1 2 0 0 0 0 0 0 0 0 0 5 2000 0 0 0 0 0 0 0 0 0 0 1 1 2 2001 0 1 2 0 0 0 0 0 0 0 1 1 5 2002 2 0 1 2 1 0 0 0 0 0 0 0 6 2003 3 0 1 2 0 0 0 0 0 0 1 0 7 MEAN 0.8 1.0 1.8 1.1 0.6 0.2 0.0 0.0 0.0 0.0 0.3 0.7 6.5 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 28 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF DAYS WITH PRECIPITATION EQUAL TO OR GREATER THAN 5 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 4 3 6 3 1 0 0 0 0 0 0 5 22 1992 3 1 7 2 4 2 0 0 0 0 1 5 25 1993 2 6 4 5 3 0 0 0 0 0 1 1 22 1994 5 0 3 0 2 0 0 0 0 1 3 0 14 1995 0 5 2 2 0 0 0 0 1 0 0 0 10 1996 1 2 7 2 0 0 0 0 0 0 1 0 13 1997 2 0 7 1 3 1 0 0 0 1 1 3 19 1998 4 6 1 2 0 0 0 0 0 1 0 0 14 1999 3 1 5 1 0 0 1 0 0 0 2 1 14 2000 1 3 1 0 0 1 0 0 0 1 3 4 14 2001 1 2 3 0 2 0 0 0 0 0 1 4 13 2002 3 1 4 5 1 0 0 0 0 1 2 1 18 2003 3 2 3 6 1 1 0 0 0 0 1 1 18 MEAN 2.5 2.5 4.1 2.2 1.3 0.4 0.1 0.0 0.1 0.4 1.2 1.9 16.7 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 29 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF DAYS WITH PRECIPITATION EQUAL TO OR GREATER THAN 1 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 6 6 11 5 5 0 0 0 0 0 0 7 40 1992 10 4 9 6 8 4 0 0 0 0 1 8 50 1993 4 10 11 8 8 2 0 0 0 1 2 1 47 1994 8 1 9 3 2 0 0 0 0 3 4 3 33 1995 3 8 6 6 2 1 0 0 2 0 1 3 32 1996 6 5 15 5 6 0 0 0 0 0 1 0 38 1997 4 1 11 7 5 3 0 0 0 3 3 5 42 1998 12 11 5 4 5 2 0 0 0 1 0 2 42 1999 5 7 9 3 3 1 2 0 1 0 3 2 36 2000 6 4 2 0 0 1 0 0 1 3 4 7 28 2001 4 3 5 1 3 1 1 0 1 1 2 11 33 2002 5 6 6 6 3 0 0 0 0 1 4 7 38 2003 4 7 8 7 5 1 0 0 0 0 2 4 38 MEAN 5.9 5.6 8.2 4.7 4.2 1.2 0.2 0.0 0.4 1.0 2.1 4.6 38.1 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 30 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 11 13 20 7 11 0 2 0 2 5 4 11 86 1992 15 12 19 13 15 9 0 0 0 0 4 14 101 1993 9 15 12 14 12 4 1 1 0 1 9 6 84 1994 13 13 17 7 6 1 0 0 0 9 7 5 78 1995 8 9 8 15 4 3 0 0 2 2 3 9 63 1996 8 11 21 15 11 2 2 0 1 3 1 3 78 1997 6 6 15 10 7 11 0 0 0 5 6 9 75 1998 18 16 10 10 10 2 1 1 2 1 0 3 74 1999 13 9 14 11 6 2 3 0 3 1 9 7 78 2000 11 9 6 5 0 1 1 1 4 6 6 8 58 2001 6 6 7 3 5 2 1 3 2 6 6 12 59 2002 9 9 11 16 9 3 2 1 0 2 6 12 80 2003 6 13 11 9 12 2 0 1 0 3 7 11 75 MEAN 10.2 10.8 13.2 10.4 8.3 3.2 1.0 0.6 1.2 3.4 5.2 8.5 76.0 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 31 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF DAYS WITH THUNDER STORM YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 0 1 1 1 5 0 0 0 0 0 0 1 9 1992 0 1 2 4 6 9 0 0 0 0 0 2 24 1993 0 1 2 4 5 4 0 0 0 0 0 0 16 1994 0 1 2 0 3 0 0 0 0 0 2 0 8 1995 0 0 3 2 3 3 0 0 1 0 1 0 13 1996 0 1 2 2 1 2 0 0 1 0 0 0 9 1997 0 0 3 4 2 6 0 0 1 1 0 0 17 1998 0 0 0 5 4 1 0 1 1 0 0 0 12 1999 0 4 1 1 4 3 2 0 0 0 0 0 15 2000 0 0 1 1 0 0 0 0 0 1 0 0 3 2001 0 2 2 1 3 2 1 0 1 0 1 1 14 2002 0 0 4 5 4 2 0 0 0 1 0 0 16 2003 0 2 4 6 7 2 0 0 0 1 1 1 24 MEAN 0.0 1.0 2.1 2.8 3.6 2.6 0.2 0.1 0.4 0.3 0.4 0.4 13.9 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 32 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF DAYS WITH SNOW OR SLEET YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 4 9 2 0 0 0 0 0 0 0 0 2 17 1992 11 7 7 0 0 0 0 0 0 0 1 6 32 1993 8 5 2 0 0 0 0 0 0 0 1 3 19 1994 3 4 2 0 0 0 0 0 0 0 0 2 11 1995 3 3 0 0 0 0 0 0 0 0 2 3 11 1996 5 3 4 3 0 0 0 0 0 0 1 1 17 1997 4 2 5 0 0 0 0 0 0 0 0 3 14 1998 6 5 2 0 0 0 0 0 0 0 0 0 13 1999 5 0 2 0 0 0 0 0 0 0 1 0 8 2000 3 3 2 0 0 0 0 0 0 0 2 1 11 2001 8 0 3 0 0 0 0 0 0 0 1 4 16 2002 4 5 1 0 0 0 0 0 0 0 0 8 18 2003 5 3 1 1 0 0 0 0 0 0 1 3 14 MEAN 5.3 3.8 2.5 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.8 2.8 15.5 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 33 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF DAYS WITH DUST YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 0 0 1 2 4 0 1 9 3 0 0 0 20 1992 0 1 0 1 0 1 2 4 2 2 1 0 14 1993 0 0 0 0 1 0 0 0 2 3 1 0 7 1994 0 0 0 0 0 5 3 1 0 0 0 0 9 1995 0 0 1 0 0 1 1 3 2 0 2 0 10 1996 0 0 1 1 0 6 3 5 2 1 0 0 19 1997 0 0 4 2 1 1 1 1 5 2 0 0 17 1998 0 0 2 0 1 0 4 2 2 1 0 0 12 1999 0 0 0 3 2 10 6 2 2 1 0 0 26 2000 1 1 2 3 5 4 2 2 3 0 0 0 23 2001 0 0 0 2 4 4 4 1 1 1 1 0 18 2002 0 1 1 2 1 4 1 1 0 3 1 0 15 2003 0 1 4 3 2 2 2 0 3 0 0 0 17 MEAN 0.1 0.3 1.2 1.5 1.6 2.9 2.3 2.4 2.1 1.1 0.5 0.0 16.0 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 34 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M PREVAILING WIND DIRECTION , SPEED (IN KNOTS) AND PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 *** 270 90 270 270 90 90 90 90 45 270 270 *** PREVAIL. DIRECT. ***** 5.2 6.6 7.7 7.9 7.7 8.0 10.5 7.8 3.5 4.6 5.0 ***** PREVAIL. SPEED ***** 17.5 19.9 14.8 13.1 16.0 14.1 26.3 17.7 7.1 7.6 7.4 ***** PREVAIL. PERCENT ***** 50.8 42.6 51.1 50.4 59.3 56.4 51.3 54.5 62.1 66.4 73.3 ***** CALMS PERCENT 109 120 141 135 137 150 163 156 231 224 223 243 2032 WIND OBSER. NO. 1992 270 270 90 90 270 90 90 90 90 360 45 360 90 PREVAIL. DIRECT. 5.4 6.5 6.2 7.9 6.2 8.5 8.7 8.6 6.2 4.9 5.9 5.3 7.7 PREVAIL. SPEED 6.7 9.5 8.9 12.5 11.3 20.0 19.4 17.7 10.0 6.5 7.9 3.2 9.5 PREVAIL. PERCENT 72.9 61.2 66.5 55.0 63.3 55.0 60.2 56.9 70.0 81.9 76.7 84.3 67.1 CALMS PERCENT 240 232 248 240 248 240 216 248 240 248 240 248 2888 WIND OBSER. NO. 1993 315 270 225 90 90 90 90 90 90 90 45 315 90 PREVAIL. DIRECT. 4.3 6.3 7.3 7.0 6.3 9.0 9.1 7.1 8.1 6.9 7.6 4.5 7.6 PREVAIL. SPEED 3.2 5.4 8.9 13.8 9.3 13.3 10.5 12.9 11.7 6.5 4.6 3.5 7.6 PREVAIL. PERCENT 87.9 77.9 69.4 65.8 75.8 63.8 61.3 71.4 74.6 84.3 78.6 90.4 74.9 CALMS PERCENT 248 222 248 240 248 240 248 248 240 230 196 230 2838 WIND OBSER. NO. 1994 270 90 90 90 90 90 90 90 90 90 270 90 90 PREVAIL. DIRECT. 6.9 6.2 7.6 6.9 7.1 12.3 11.4 11.5 8.4 6.0 4.8 8.0 9.5 PREVAIL. SPEED 7.1 7.1 11.2 9.2 13.9 27.8 20.6 26.3 14.8 3.8 4.2 3.6 11.6 PREVAIL. PERCENT 81.3 77.1 67.8 70.8 66.1 61.7 57.9 61.1 76.1 88.6 79.6 85.5 72.9 CALMS PERCENT 155 140 214 240 230 162 228 167 230 185 240 248 2439 WIND OBSER. NO. 1995 225 90 90 270 90 90 90 90 90 90 270 315 90 PREVAIL. DIRECT. 5.7 6.0 5.2 8.2 7.3 9.0 9.8 9.2 7.2 7.7 7.8 4.7 8.1 PREVAIL. SPEED 2.8 4.9 7.3 4.2 7.7 12.5 18.1 11.3 12.5 5.3 3.8 1.2 7.4 PREVAIL. PERCENT 88.3 81.3 84.3 82.9 78.6 75.0 72.6 73.4 76.3 85.4 84.6 96.4 81.6 CALMS PERCENT 248 224 248 240 248 240 248 248 240 247 240 248 2919 WIND OBSER. NO. 1996 360 90 90 90 90 90 360 90 90 270 270 315 90 PREVAIL. DIRECT. 4.7 7.3 6.1 8.3 8.4 9.0 10.5 9.0 8.7 6.6 6.2 5.8 8.2 PREVAIL. SPEED 1.2 5.1 7.5 13.1 16.8 23.3 11.0 18.1 13.0 6.5 4.6 4.0 7.9 PREVAIL. PERCENT 96.4 83.7 80.9 68.1 57.4 45.3 63.2 65.2 77.4 80.4 91.3 90.3 77.6 CALMS PERCENT 248 215 199 160 155 150 155 155 177 245 240 248 2347 WIND OBSER. NO. 1997 270 225 90 90 45 90 90 90 90 270 270 270 90 PREVAIL. DIRECT. 6.0 7.9 7.2 7.3 7.1 7.5 10.1 7.8 8.9 6.1 5.0 6.3 8.1 PREVAIL. SPEED 4.8 8.9 11.7 9.2 6.5 9.2 16.9 14.1 15.0 6.9 4.2 3.3 8.0 PREVAIL. PERCENT 82.7 69.2 64.9 68.8 67.7 65.0 63.7 67.3 65.4 78.6 89.2 88.9 72.6 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 243 2915 WIND OBSER. NO. 1998 45 225 90 90 90 90 90 90 90 90 90 225 90 PREVAIL. DIRECT. 6.0 6.9 7.2 7.4 10.1 10.5 10.6 8.9 10.2 7.8 5.0 5.3 9.2 PREVAIL. SPEED 6.3 6.4 7.7 14.0 20.6 12.4 22.4 18.7 16.0 7.7 2.7 5.2 11.2 PREVAIL. PERCENT 81.5 77.9 60.6 60.0 52.9 57.6 56.4 56.1 72.0 72.3 86.0 83.2 68.0 CALMS PERCENT 189 140 155 150 155 177 165 155 150 155 150 155 1896 WIND OBSER. NO. 1999 90 180 90 90 90 90 90 360 90 90 225 270 90 PREVAIL. DIRECT. 5.1 8.8 6.0 8.3 10.3 9.2 9.8 10.0 9.1 6.4 5.8 5.1 8.3 PREVAIL. SPEED 5.8 7.1 11.0 16.0 17.4 24.0 20.6 14.8 20.0 9.0 8.0 4.5 11.8 PREVAIL. PERCENT 76.8 70.7 60.6 53.3 49.0 46.0 49.7 49.0 61.3 76.1 79.3 89.0 63.4 CALMS PERCENT 155 140 155 150 155 150 155 155 150 155 150 155 1825 WIND OBSER. NO. 2000 90 270 225 225 90 90 360 135 90 90 270 360 90 PREVAIL. DIRECT. 6.6 6.8 7.5 8.0 10.9 10.1 8.9 7.3 8.8 6.2 6.8 4.3 9.1 PREVAIL. SPEED 6.5 8.6 6.9 9.6 32.9 27.3 9.4 8.1 16.7 5.2 3.3 3.2 9.1 PREVAIL. PERCENT 72.9 73.6 61.7 64.4 49.7 48.0 57.5 67.7 63.8 80.6 88.8 85.9 69.3 CALMS PERCENT 155 174 248 208 155 150 181 248 240 248 240 248 2495 WIND OBSER. NO. 2001 90 225 270 90 90 90 90 90 90 90 270 225 90 PREVAIL. DIRECT. 4.8 6.3 8.3 7.5 9.3 9.1 11.3 7.5 7.7 8.3 7.8 7.0 8.6 PREVAIL. SPEED 2.0 5.8 9.7 12.5 14.5 19.6 18.1 12.1 15.0 6.5 4.6 0.8 9.5 PREVAIL. PERCENT 93.1 76.8 62.5 64.6 60.1 60.8 62.1 72.6 72.9 85.5 87.1 97.2 74.6 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 2002 90 270 90 270 90 90 90 90 90 90 90 225 90 PREVAIL. DIRECT. 10.0 8.7 8.5 9.6 8.4 8.8 9.3 8.3 7.1 9.7 8.4 8.5 8.3 PREVAIL. SPEED 2.0 8.9 7.3 6.3 14.1 13.3 8.9 19.4 14.6 2.4 2.1 3.2 7.5 PREVAIL. PERCENT 93.1 79.0 74.6 77.9 66.9 70.0 77.8 73.4 80.8 93.1 93.8 91.1 81.0 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 2003 45 270 270 90 270 90 90 90 90 90 225 45 90 PREVAIL. DIRECT. 8.5 7.9 9.0 7.0 6.9 9.8 10.2 9.6 9.1 6.0 9.0 5.5 8.9 PREVAIL. SPEED 1.6 8.5 8.1 7.1 8.9 16.3 25.4 11.3 12.5 3.2 3.3 1.6 8.3 PREVAIL. PERCENT 93.1 76.3 64.1 78.8 73.0 67.1 65.3 77.4 82.5 89.9 90.4 93.5 79.3 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 1991-2003 270 270 90 90 90 90 90 90 90 90 270 270 90 PREVAIL. DIRECT. 6.3 7.1 6.9 7.4 8.6 9.4 10.0 9.0 8.2 6.7 6.6 5.9 8.4 PREVAIL. SPEED 2.9 6.2 8.5 9.7 12.8 17.3 16.2 15.0 14.4 5.1 3.9 2.3 9.1 PREVAIL. PERCENT MEAN 86.0 74.2 67.2 67.5 64.2 60.9 62.7 66.2 71.6 81.9 84.2 88.5 72.9 CALMS PERCENT MEAN 219.2 192.5 219.1 209.5 209.5 201.5 211.6 213.2 219.8 225.3 221.5 231.5 2574.2 WIND OBSER. NO. =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 35 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M VECTOR WIND DIRECTION , MAGNITUDE (IN KNOTS) AND WIND STEADINESES (%) YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 *** 181 95 232 194 85 112 103 101 339 348 318 *** VECTOR DIRECT. **** 0.1 0.5 0.7 0.6 1.0 0.7 2.9 1.0 0.2 0.6 0.4 **** WIND MAGNITUDE ***** 4.2 16.1 21.2 16.7 34.5 22.6 74.4 34.5 11.8 40.0 33.3 ***** STEADINESES(%) 1992 324 339 63 97 232 102 100 128 114 351 9 349 98 VECTOR DIRECT. 0.2 0.3 0.5 0.2 0.3 1.2 1.8 1.5 0.3 0.2 0.2 0.1 0.4 WIND MAGNITUDE 13.3 13.6 27.8 6.5 13.6 35.3 60.0 48.4 17.6 22.2 14.3 11.1 19.0 STEADINESES(%) 1993 336 348 213 85 109 55 21 99 101 114 256 304 80 VECTOR DIRECT. 0.1 0.1 0.6 0.8 0.3 0.8 0.7 0.7 0.7 0.3 R< 0.1 0.2 0.3 WIND MAGNITUDE 20.0 7.7 28.6 36.4 20.0 29.6 23.3 36.8 38.9 30.0 1.6 40.0 17.6 STEADINESES(%) 1994 265 129 67 169 118 89 104 95 107 81 3 134 99 VECTOR DIRECT. 1.0 0.3 0.7 0.2 0.5 3.1 2.4 3.0 1.2 0.1 0.1 0.1 0.8 WIND MAGNITUDE 76.9 23.1 35.0 11.1 22.7 75.6 63.2 75.0 66.7 14.3 9.1 10.0 38.1 STEADINESES(%) 1995 246 59 145 208 120 103 99 72 129 134 290 28 103 VECTOR DIRECT. 0.1 0.2 0.2 0.2 0.2 1.0 2.0 1.0 0.6 0.2 0.2 R< 0.1 0.4 WIND MAGNITUDE 14.3 16.7 22.2 18.2 12.5 55.6 80.0 47.6 35.3 18.2 22.2 13.7 30.8 STEADINESES(%) 1996 315 89 138 99 82 78 345 102 105 211 247 335 80 VECTOR DIRECT. R< 0.1 0.1 0.3 0.5 1.3 2.4 1.5 1.8 0.8 0.2 0.3 0.3 0.5 WIND MAGNITUDE 8.2 10.0 23.1 20.0 43.3 54.5 44.1 64.3 44.4 15.4 60.0 50.0 26.3 STEADINESES(%) 1997 277 216 194 171 30 8 79 92 72 265 225 292 91 VECTOR DIRECT. 0.2 0.9 0.3 0.6 0.3 0.8 1.8 0.8 0.8 0.3 0.2 0.2 0.2 WIND MAGNITUDE 18.2 36.0 11.1 25.0 14.3 27.6 58.1 36.4 33.3 25.0 33.3 33.3 10.0 STEADINESES(%) 1998 54 255 184 147 113 61 95 71 94 113 285 151 99 VECTOR DIRECT. 0.2 0.3 0.6 0.9 1.6 1.5 2.6 1.5 1.5 0.5 0.2 0.2 0.8 WIND MAGNITUDE 16.7 18.8 22.2 29.0 34.0 35.7 61.9 40.5 65.2 27.8 25.0 20.0 30.8 STEADINESES(%) 1999 217 185 155 153 130 93 101 18 108 108 246 250 111 VECTOR DIRECT. 0.5 0.5 0.5 0.6 1.3 2.3 2.3 1.7 2.1 0.5 0.6 0.4 0.7 WIND MAGNITUDE 33.3 27.8 22.7 18.2 29.5 50.0 57.5 42.5 70.0 38.5 50.0 80.0 25.9 STEADINESES(%) 2000 186 281 203 218 92 94 21 92 81 128 255 298 93 VECTOR DIRECT. 0.1 0.4 0.2 1.0 3.0 3.2 0.9 0.9 1.5 0.2 0.3 0.1 0.6 WIND MAGNITUDE 6.7 25.0 7.4 40.0 62.5 68.1 25.7 34.6 57.7 20.0 50.0 16.7 25.0 STEADINESES(%) 2001 56 189 255 129 116 87 91 110 95 114 219 0 106 VECTOR DIRECT. 0.1 0.3 0.7 0.3 0.7 1.5 1.8 0.8 0.8 0.4 0.1 0.0 0.5 WIND MAGNITUDE 25.0 20.0 26.9 11.1 21.2 48.4 50.0 42.1 44.4 40.0 11.1 0.0 26.3 STEADINESES(%) 2002 82 239 153 249 125 93 83 89 89 80 80 241 111 VECTOR DIRECT. 0.1 0.9 0.3 0.5 0.5 0.4 0.8 1.5 1.0 0.2 0.2 0.4 0.3 WIND MAGNITUDE 20.0 56.3 15.0 27.8 17.9 15.4 44.4 75.0 76.9 40.0 50.0 57.1 20.0 STEADINESES(%) 2003 19 266 210 159 244 98 96 96 94 125 258 98 107 VECTOR DIRECT. 0.1 0.5 0.4 0.3 0.3 0.9 2.7 1.1 0.9 0.1 0.6 0.1 0.4 WIND MAGNITUDE 25.0 31.3 13.8 18.8 15.8 31.0 81.8 61.1 60.0 14.3 75.0 20.0 23.5 STEADINESES(%) 1991-2003 270 230 163 167 110 85 87 91 98 109 274 286 99 VECTOR DIRECT. 0.1 0.2 0.2 0.3 0.7 1.5 1.4 1.3 1.0 0.1 0.2 0.1 0.5 WIND MAGNITUDE 11.1 11.8 9.1 12.5 24.1 44.1 42.4 46.4 50.0 9.1 22.2 16.7 25.0 STEADINESES(%) =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 36 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF WIND SPEED IN KNOTS YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ***** 2.4 3.1 3.3 3.6 2.9 3.1 3.9 2.9 1.7 1.5 1.2 ****** 1992 1.5 2.2 1.8 3.1 2.2 3.4 3.0 3.1 1.7 0.9 1.4 0.9 2.1 1993 0.5 1.3 2.1 2.2 1.5 2.7 3.0 1.9 1.8 1.0 1.5 0.5 1.7 1994 1.3 1.3 2.0 1.8 2.2 4.1 3.8 4.0 1.8 0.7 1.1 1.0 2.1 1995 0.7 1.2 0.9 1.1 1.6 1.8 2.5 2.1 1.7 1.1 0.9 0.2 1.3 1996 0.2 1.0 1.3 2.5 3.0 4.4 3.4 2.8 1.8 1.3 0.5 0.6 1.9 1997 1.1 2.5 2.7 2.4 2.1 2.9 3.1 2.2 2.4 1.2 0.6 0.6 2.0 1998 1.2 1.6 2.7 3.1 4.7 4.2 4.2 3.7 2.3 1.8 0.8 1.0 2.6 1999 1.5 1.8 2.2 3.3 4.4 4.6 4.0 4.0 3.0 1.3 1.2 0.5 2.7 2000 1.5 1.6 2.7 2.5 4.8 4.7 3.5 2.6 2.6 1.0 0.6 0.6 2.4 2001 0.4 1.5 2.6 2.7 3.3 3.1 3.6 1.9 1.8 1.0 0.9 0.1 1.9 2002 0.5 1.6 2.0 1.8 2.8 2.6 1.8 2.0 1.3 0.5 0.4 0.7 1.5 2003 0.4 1.6 2.9 1.6 1.9 2.9 3.3 1.8 1.5 0.7 0.8 0.5 1.7 MEAN 0.9 1.7 2.2 2.4 2.9 3.4 3.3 2.8 2.0 1.1 0.9 0.6 2.0 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 37 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M FASTEST WIND DIRECTION AND SPEED IN KNOTS YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 *** 110 270 230 250 330 260 90 210 270 70 250 *** DIRECTION ** 14 14 14 19 14 16 25 19 10 10 12 ** SPEED ** 20 11 5 10 18 14 20 24 9 4 13 DAY 1992 180 70 240 190 50 140 80 110 340 100 260 210 190 DIRECTION 14 17 19 27 16 23 19 16 16 16 23 14 27 SPEED 3 21 6 15 11 5 12 5 3 15 26 28 DAY 1993 100 70 250 60 240 70 320 330 100 220 150 240 240 DIRECTION 10 14 17 23 31 19 19 17 16 17 25 12 31 SPEED 6 4 22 22 29 19 15 28 4 1 14 12 DAY 1994 200 60 320 130 240 90 110 110 110 330 190 190 90 DIRECTION 12 12 16 17 19 21 19 19 17 14 14 14 21 SPEED 5 1 4 2 15 4 1 2 13 8 26 5 DAY 1995 80 20 90 250 100 80 90 310 260 250 200 100 90 DIRECTION 16 14 31 16 16 19 19 17 16 19 25 10 31 SPEED 22 8 14 6 12 14 8 13 20 12 26 23 DAY 1996 130 70 250 190 110 80 80 100 180 110 240 200 250 DIRECTION 10 16 19 19 19 19 19 17 16 16 12 10 19 SPEED 8 5 5 1 8 9 9 15 9 2 12 11 DAY 1997 240 210 250 210 350 240 100 10 70 350 270 250 250 DIRECTION 16 19 29 19 21 29 17 17 17 19 10 14 29 SPEED 28 23 8 5 30 4 21 18 13 15 1 11 DAY 1998 70 280 180 120 250 120 120 330 80 100 210 80 250 DIRECTION 16 16 23 27 29 29 23 19 27 23 12 14 29 SPEED 2 28 30 5 30 15 2 1 5 9 7 12 DAY 1999 250 180 110 270 120 100 70 350 90 90 260 250 100 DIRECTION 27 14 17 25 19 35 19 16 19 10 16 10 35 SPEED 1 19 14 3 4 7 8 7 16 2 28 16 DAY 2000 250 280 190 280 80 120 110 50 90 70 270 190 190 DIRECTION 16 14 21 16 17 17 17 17 16 16 16 16 21 SPEED 7 8 9 1 5 6 4 8 2 1 26 26 DAY 2001 340 220 260 250 220 60 80 80 110 90 270 300 60 DIRECTION 10 14 16 16 21 29 23 16 16 16 14 10 29 SPEED 4 22 18 13 7 20 3 14 13 1 8 30 DAY 2002 90 260 150 210 240 110 340 110 80 90 70 100 240 DIRECTION 14 17 19 19 23 23 17 17 14 16 12 12 23 SPEED 5 28 21 13 4 2 20 25 2 15 3 3 DAY 2003 60 260 260 240 170 80 90 100 100 270 280 100 80 DIRECTION 12 19 19 23 19 29 19 19 19 16 19 12 29 SPEED 15 21 2 12 23 19 31 7 14 5 14 11 DAY 1991-2003 250 210 90 190 240 100 120 90 80 100 150 190 100 DIRECTION 27 19 31 27 31 35 23 25 27 23 25 16 35 SPEED 99- 1 97-23 95-14 92-15 93-29 99- 7 98- 2 91-20 98- 5 98- 9 93-14 0-26 99 YEAR-DAY =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 38 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF CLEAR DAYS (0-2)/8 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 8 5 5 8 7 28 28 27 25 20 16 10 187 1992 6 10 5 3 6 14 27 28 28 26 20 6 179 1993 13 5 12 4 5 25 28 29 29 24 11 12 197 1994 13 8 7 6 16 24 31 31 28 17 13 13 207 1995 16 13 15 5 19 24 30 31 24 26 22 14 239 1996 12 8 6 9 13 25 29 31 29 21 21 16 220 1997 15 15 6 10 15 14 30 31 29 21 7 8 201 1998 3 6 6 8 14 27 28 26 25 23 19 16 201 1999 12 15 9 13 23 26 21 30 29 25 10 18 231 2000 15 19 15 14 24 27 30 29 26 18 13 11 241 2001 14 21 14 16 20 23 27 27 26 22 13 8 231 2002 11 10 14 3 18 22 26 31 30 23 14 9 211 2003 12 5 8 4 14 22 29 28 29 23 16 13 203 MEAN 11.5 10.8 9.4 7.9 14.9 23.2 28.0 29.2 27.5 22.2 15.0 11.8 211.4 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 39 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF PARTLY CLOUDY DAYS (3-6)/8 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 9 12 8 18 17 2 3 4 5 8 9 13 108 1992 17 12 13 20 16 15 0 3 2 5 8 15 126 1993 10 12 7 17 19 5 3 2 1 6 12 14 108 1994 7 11 14 21 14 6 0 0 2 8 8 14 105 1995 10 9 12 10 9 6 1 0 6 5 8 7 83 1996 11 10 11 12 15 5 2 0 0 10 8 11 95 1997 13 12 15 15 12 16 1 0 1 7 16 15 123 1998 15 9 15 20 15 3 3 5 5 8 9 10 117 1999 7 8 9 14 8 4 9 1 0 6 9 9 84 2000 11 3 8 14 5 2 1 2 4 10 12 11 83 2001 10 3 11 12 10 6 4 3 4 8 13 15 99 2002 12 9 10 17 13 8 5 0 0 8 9 8 99 2003 7 15 15 15 14 7 2 3 1 8 5 12 104 MEAN 10.7 9.6 11.4 15.8 12.8 6.5 2.6 1.8 2.4 7.5 9.7 11.8 102.6 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 40 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF CLOUDY DAYS (7-8)/8 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 10 11 18 3 6 0 0 0 0 3 5 8 64 1992 8 7 13 7 9 1 0 0 0 0 2 10 57 1993 8 11 12 9 7 0 0 0 0 1 7 5 60 1994 11 9 10 3 1 0 0 0 0 6 9 4 53 1995 5 6 4 15 3 0 0 0 0 0 0 10 43 1996 8 11 14 9 3 0 0 0 1 0 1 4 51 1997 3 1 10 5 4 0 0 0 0 3 7 8 41 1998 13 13 10 2 2 0 0 0 0 0 2 5 47 1999 12 5 13 3 0 0 1 0 1 0 11 4 50 2000 5 7 8 2 2 1 0 0 0 3 5 9 42 2001 7 4 6 2 1 1 0 1 0 1 4 8 35 2002 8 9 7 10 0 0 0 0 0 0 7 14 55 2003 12 8 8 11 3 1 0 0 0 0 9 6 58 MEAN 8.5 7.8 10.2 6.2 3.2 0.3 0.1 0.1 0.2 1.3 5.3 7.3 50.5 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 41 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M NO. OF DAYS WITH VISIBILITY LESS THAN OR EQUAL 2 KM YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 10 8 8 2 1 0 0 0 0 0 0 4 33 1992 6 3 3 1 3 1 0 0 0 0 1 6 24 1993 7 5 2 3 0 0 0 0 0 0 1 2 20 1994 2 1 3 0 0 1 0 0 0 1 1 0 9 1995 0 2 2 1 0 0 0 0 3 0 2 3 13 1996 4 4 4 1 1 0 0 0 0 0 1 0 15 1997 1 0 3 0 0 1 0 0 0 0 2 6 13 1998 3 2 1 0 0 0 0 0 0 0 1 0 7 1999 4 0 2 1 0 0 0 0 0 0 2 0 9 2000 0 2 1 0 0 0 0 0 1 0 1 4 9 2001 3 0 0 0 0 0 0 0 0 0 0 5 8 2002 1 2 2 0 0 0 0 0 0 0 2 6 13 2003 3 3 1 1 1 0 0 0 0 0 2 2 13 MEAN 3.4 2.5 2.5 0.8 0.5 0.2 0.0 0.0 0.3 0.1 1.2 2.9 14.4 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 42 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MONTHLY TOTAL OF SUNSHINE HOURS YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ***** ***** 80.4 172.4 268.2 353.1 359.1 353.9 294.9 247.7 206.2 123.6 ****** 1992 114.3 137.9 141.5 148.1 243.6 311.5 333.1 339.4 313.6 282.0 215.7 110.6 2691.3 1993 151.0 141.1 193.5 200.8 ***** ***** ***** ***** ***** ***** ***** ***** ****** 1994 150.2 158.9 200.4 257.8 323.6 364.2 393.4 371.2 323.2 251.2 205.6 194.6 3194.3 1995 93.2 ***** ***** ***** ***** 195.6 363.3 349.5 287.4 304.0 254.6 171.6 ****** 1996 190.6 142.0 167.8 213.6 270.6 351.8 386.0 365.8 309.8 269.1 251.1 197.9 3116.1 1997 191.8 238.4 186.4 241.1 300.5 311.2 386.4 375.4 315.2 262.7 194.0 139.8 3142.9 1998 103.2 130.0 195.2 256.1 302.1 370.4 372.2 279.2 306.1 294.2 238.6 187.5 3034.8 1999 146.5 197.5 181.6 240.4 329.8 349.9 341.7 372.8 319.1 283.9 167.5 203.9 3134.6 2000 191.0 197.2 239.6 276.7 353.4 347.5 385.5 368.8 303.2 265.2 202.1 165.9 3296.1 2001 188.7 225.6 235.7 278.7 329.2 347.3 363.9 346.7 312.5 271.4 201.3 153.2 3254.2 2002 160.2 180.3 227.2 215.3 325.7 346.7 374.2 364.6 331.7 280.3 197.2 130.3 3133.7 2003 147.5 166.2 200.1 204.1 292.8 344.1 368.2 368.0 330.0 288.1 197.8 163.6 3070.5 MEAN 152.3 174.1 187.4 225.4 303.6 332.8 368.9 354.6 312.2 275.0 211.0 161.9 3059.2 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 43 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF QFE PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ****** ****** ****** ****** ****** ****** ****** ****** 880.9 884.2 884.8 881.1 ****** 1992 881.4 878.2 880.0 878.2 880.1 876.4 876.1 879.0 881.4 883.1 884.1 882.4 880.0 1993 882.9 881.6 880.5 879.1 879.2 877.1 876.9 878.9 880.2 886.4 884.1 885.3 881.0 1994 882.4 879.7 880.0 880.5 879.1 874.6 874.2 876.1 883.6 885.2 882.1 883.7 880.1 1995 883.6 881.4 880.4 878.9 880.6 876.1 873.6 876.7 879.6 883.7 882.9 885.1 880.2 1996 884.2 880.6 879.0 880.1 880.3 877.0 877.5 878.2 878.3 883.2 886.8 885.1 880.9 1997 881.3 881.4 877.7 878.2 880.5 876.5 874.5 877.3 880.8 882.6 884.8 882.6 879.9 1998 880.6 881.0 879.3 879.0 880.1 878.8 875.3 878.5 880.0 883.9 884.7 886.0 880.6 1999 882.9 880.5 879.5 880.1 879.1 876.1 875.3 877.2 879.4 882.4 883.5 886.7 880.2 2000 881.2 881.3 879.7 879.2 876.9 876.7 877.3 877.8 879.4 883.7 885.7 883.6 880.2 2001 884.2 881.2 880.1 878.9 877.1 875.5 875.8 878.1 880.3 882.8 883.1 884.7 880.2 2002 882.7 881.5 880.4 877.7 878.1 876.0 877.4 876.5 881.2 883.3 884.9 882.9 880.2 2003 882.6 878.8 879.7 880.1 880.9 876.6 874.5 878.3 880.4 882.5 884.7 885.6 880.4 MEAN 882.5 880.6 879.7 879.2 879.3 876.5 875.7 877.7 880.4 883.6 884.3 884.2 880.3 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 44 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MAX. OF QFE PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ****** ****** ****** ****** ****** ****** ****** ****** 887.6 888.5 889.9 889.8 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 17- 6 21- 6 13- 6 17- 6 1992 893.1 886.5 889.6 882.7 886.8 882.3 880.6 886.4 887.3 888.8 893.7 888.8 893.7 DAY-HOUR 10- 6 16-18 12- 9 8- 6 2-18 7- 3 6- 6 31- 6 30- 6 30- 6 4- 6 29- 6 1993 892.9 889.8 889.1 887.8 887.1 885.7 882.6 883.1 888.8 893.0 891.6 891.2 893.0 DAY-HOUR 6- 6 9- 6 17- 6 1- 6 9- 6 23- 3 28- 3 31- 6 23- 6 17- 6 22- 6 27- 6 1994 892.7 889.8 886.9 892.5 885.1 880.7 878.6 880.9 891.4 890.3 888.9 892.4 892.7 DAY-HOUR 10- 6 18- 6 18- 6 5- 6 18-21 9- 6 13- 6 15- 6 23- 6 10- 6 2- 6 8- 6 1995 892.5 888.0 888.9 884.6 886.4 883.3 877.8 883.7 886.1 893.1 890.8 891.2 893.1 DAY-HOUR 7- 6 17-18 3- 6 7- 6 26- 6 1- 6 4- 3 25- 6 13- 6 18- 6 16- 3 11- 6 1996 893.6 887.2 884.2 887.6 885.3 881.9 884.6 886.9 887.0 893.5 897.2 892.6 897.2 DAY-HOUR 10- 6 13- 6 22- 6 5- 6 4- 6 12- 3 4- 3 30- 6 25- 6 2- 6 18-18 8- 6 1997 890.1 888.5 892.1 885.6 887.4 882.5 878.8 882.6 887.7 888.8 895.6 891.8 895.6 DAY-HOUR 24- 6 7-18 11- 6 20-18 12- 6 4-18 9- 6 24- 6 7- 6 9- 6 8- 6 29- 6 1998 889.2 893.6 888.8 890.1 887.7 884.7 881.3 883.3 886.6 893.0 892.8 893.4 893.6 DAY-HOUR 4- 6 23- 6 26- 9 12- 6 3- 6 5- 6 20- 3 25- 6 13- 6 10- 6 21- 6 29- 6 1999 895.2 889.6 886.8 887.4 885.8 883.8 880.9 884.3 885.9 888.0 891.5 894.9 895.2 DAY-HOUR 2- 6 12- 6 19- 6 23- 6 27- 6 17- 3 19- 3 20- 6 30- 6 26- 6 14- 6 11- 6 2000 889.5 890.1 888.0 885.7 884.6 883.6 882.4 882.9 885.8 889.6 897.0 891.0 897.0 DAY-HOUR 31- 6 29- 6 27- 6 3- 6 5- 6 16- 6 30-18 23- 6 29- 6 16- 6 17- 6 4- 6 2001 888.7 892.5 890.4 889.3 882.7 883.9 881.0 883.7 888.6 892.1 889.8 890.8 892.5 DAY-HOUR 17- 6 10- 6 1-21 1-21 11-18 2- 3 29- 6 5- 6 22- 6 10- 6 2- 6 18- 6 2002 890.3 889.9 894.2 887.4 884.6 883.7 883.3 883.4 886.8 888.7 893.3 893.7 894.2 DAY-HOUR 26- 6 6- 6 11- 6 1- 6 17- 6 25- 3 3- 3 30- 6 30- 6 10- 6 18- 6 3-18 2003 888.9 887.9 890.6 886.1 889.6 882.5 880.8 882.5 889.0 888.4 895.0 895.1 895.1 DAY-HOUR 12- 6 12-21 3- 6 30- 6 2- 6 7- 3 4- 3 30- 3 27- 6 15- 6 25- 6 12- 6 1991-2003 895.2 893.6 894.2 892.5 889.6 885.7 884.6 886.9 891.4 893.5 897.2 895.1 897.2 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 96- 4 96-30 94-23 96- 2 96-18 3-12 96-18 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 45 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MIN. OF QFE PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ****** ****** ****** ****** ****** ****** ****** ****** 874.0 879.4 877.0 871.4 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 3-12 4-12 5-12 25-21 1992 870.5 868.9 868.9 870.9 874.1 869.6 871.9 872.0 875.2 878.3 871.5 875.6 868.9 DAY-HOUR 3- 0 11-12 31- 0 18-15 19-12 27-12 24-12 1-12 18-12 5-12 26- 9 28- 9 1993 871.2 874.5 869.4 871.8 873.5 871.7 872.3 873.3 875.2 877.8 869.9 877.6 869.4 DAY-HOUR 8-12 15-12 22- 0 21- 0 7- 9 19-12 13-12 12-15 14-12 1-12 14- 9 5-12 1994 871.8 868.9 871.2 870.0 870.7 867.9 869.8 869.9 876.1 878.9 870.2 868.5 867.9 DAY-HOUR 16-15 1-15 12-12 2-15 1-15 22-15 20-12 1-12 1-12 14-12 26- 6 4- 9 1995 876.1 873.4 867.7 872.0 875.0 868.6 866.7 871.8 873.1 875.5 867.6 879.1 866.7 DAY-HOUR 1-12 5-12 26-12 24-21 8- 0 30-21 1-12 3-12 19-12 12-12 26- 0 4-12 1996 875.8 869.0 871.2 870.8 875.6 870.0 872.4 871.8 871.4 873.6 879.7 878.2 869.0 DAY-HOUR 7- 0 5-15 26- 9 10- 9 29-15 6-12 6-12 8-12 22-12 27-12 29-12 25- 0 1997 869.9 869.2 868.9 868.7 870.0 871.0 868.7 872.0 872.3 878.6 880.1 873.4 868.7 DAY-HOUR 31-21 1- 0 30- 0 10- 0 5- 0 23-15 16-12 14-12 2-15 1-12 20-12 10-12 1998 863.1 867.8 870.1 869.0 870.2 873.7 866.6 874.2 872.6 874.4 877.9 877.5 863.1 DAY-HOUR 13-15 13-15 30- 6 24-12 30- 6 29-12 5-15 5-15 6-12 2-12 1-12 21-12 1999 874.8 868.5 872.6 871.2 869.4 865.4 870.6 872.7 873.9 876.7 875.0 878.5 865.4 DAY-HOUR 19- 3 21- 3 3- 9 9- 3 14-15 25-15 12-15 7-12 16-12 31-12 26-12 15-12 2000 871.0 869.3 872.1 873.9 868.9 869.2 871.9 871.6 871.1 877.2 877.5 872.6 868.9 DAY-HOUR 21- 3 7-12 9-12 23-12 27-12 25-15 8-15 3-15 1-12 1-12 6-12 16- 0 2001 878.1 866.5 867.5 870.8 868.4 869.9 868.4 869.6 873.3 875.6 873.2 877.5 866.5 DAY-HOUR 4-12 21-18 26- 0 12-21 30-12 7-12 18-12 27-12 5-15 31-12 17-12 5-12 2002 873.2 872.4 870.9 865.6 871.8 865.6 870.7 870.0 876.1 878.1 876.7 870.2 865.6 DAY-HOUR 8-12 25-12 28-18 4-12 12-15 21-12 24-15 17-12 18-12 22-12 12-12 22- 3 2003 867.9 866.8 869.9 874.5 873.9 869.6 869.0 871.6 872.8 875.5 874.5 875.9 866.8 DAY-HOUR 29- 0 20-21 27- 0 14-15 8-15 30-12 30-15 1- 0 7-12 27-12 14-12 7- 0 1991-2003 863.1 866.5 867.5 865.6 868.4 865.4 866.6 869.6 871.1 873.6 867.6 868.5 863.1 YEAR-DAY 98-13 1-21 1-26 2- 4 1-30 99-25 98- 5 1-27 0- 1 96-27 95-26 94- 4 98-13 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 46 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF QNH PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1018.7 1022.4 1023.1 1019.0 ****** 1992 1019.3 1015.7 1017.7 1015.7 1017.8 1013.7 1013.4 1016.6 1019.3 1021.2 1022.3 1020.4 1017.8 1993 1021.0 1019.5 1018.3 1016.7 1016.8 1014.5 1014.2 1016.5 1018.0 1024.9 1022.3 1023.6 1018.9 1994 1020.4 1017.4 1017.7 1018.3 1016.7 1011.7 1011.2 1013.3 1021.8 1023.6 1020.0 1021.9 1017.8 1995 1021.8 1019.3 1018.2 1016.5 1018.4 1013.4 1010.5 1014.1 1017.2 1021.9 1021.0 1023.5 1018.0 1996 1022.5 1018.4 1016.6 1017.9 1018.1 1014.4 1014.9 1015.7 1015.9 1021.4 1025.3 1023.5 1018.7 1997 1019.2 1019.3 1015.2 1015.7 1018.2 1013.8 1011.6 1014.7 1018.6 1020.7 1023.2 1020.7 1017.6 1998 1018.4 1018.9 1017.0 1016.6 1017.8 1016.4 1012.4 1016.0 1017.8 1022.1 1023.0 1024.5 1018.4 1999 1021.0 1018.3 1017.1 1017.8 1016.7 1013.4 1012.4 1014.6 1017.1 1020.5 1021.6 1025.3 1018.0 2000 1019.1 1019.2 1017.4 1016.8 1014.2 1014.0 1014.7 1015.3 1017.1 1021.9 1024.2 1021.8 1018.0 2001 1022.5 1019.1 1017.8 1016.4 1014.5 1012.7 1013.0 1015.6 1018.1 1020.9 1021.2 1023.1 1017.9 2002 1020.8 1019.4 1018.1 1015.1 1015.6 1013.2 1014.8 1013.8 1019.1 1021.4 1023.3 1021.0 1018.0 2003 1020.6 1016.4 1017.4 1017.9 1018.7 1013.9 1011.5 1015.9 1018.2 1020.5 1023.0 1024.1 1018.2 MEAN 1020.5 1018.4 1017.4 1016.8 1017.0 1013.7 1012.9 1015.2 1018.2 1021.8 1022.6 1022.5 1018.1 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 47 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MAX. OF QNH PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1026.3 1027.3 1028.9 1028.8 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 17- 6 21- 6 13- 6 17- 6 1992 1032.5 1025.0 1028.5 1020.8 1025.4 1020.3 1018.4 1024.9 1025.9 1027.6 1033.1 1027.6 1033.1 DAY-HOUR 10- 6 16-18 12- 9 8- 6 2-18 7- 3 6- 6 31- 6 30- 6 30- 6 4- 6 29- 6 1993 1032.2 1028.8 1028.0 1026.5 1025.7 1024.1 1020.7 1021.2 1027.6 1032.4 1030.8 1030.3 1032.4 DAY-HOUR 6- 6 9- 6 17- 6 1- 6 9- 6 23- 3 28- 3 31- 6 23- 6 17- 6 22- 6 27- 6 1994 1032.0 1028.8 1025.5 1031.8 1023.5 1018.5 1016.2 1018.7 1030.6 1029.3 1027.7 1031.7 1032.0 DAY-HOUR 10- 6 18- 6 18- 6 5- 6 18-21 9- 6 13- 6 15- 6 23- 6 10- 6 2- 6 8- 6 1995 1031.8 1026.7 1027.7 1022.9 1024.9 1021.4 1015.3 1021.9 1024.6 1032.5 1029.9 1030.3 1032.5 DAY-HOUR 7- 6 17-18 3- 6 7- 6 26- 6 1- 6 4- 3 25- 6 13- 6 18- 6 16- 3 11- 6 1996 1033.0 1025.8 1022.5 1026.3 1023.7 1019.9 1022.9 1025.5 1025.6 1032.9 1037.1 1031.9 1037.1 DAY-HOUR 10- 6 13- 6 22- 6 5- 6 4- 6 12- 3 4- 3 30- 6 25- 6 2- 6 18-18 8- 6 1997 1029.1 1027.3 1031.3 1024.0 1026.1 1020.5 1016.4 1020.7 1026.4 1027.6 1035.3 1031.0 1035.3 DAY-HOUR 24- 6 7-18 11- 6 20-18 12- 6 4-18 9- 6 24- 6 7- 6 9- 6 8- 6 29- 6 1998 1028.1 1033.0 1027.6 1029.1 1026.4 1023.0 1019.2 1021.4 1025.2 1032.4 1032.1 1032.8 1033.0 DAY-HOUR 4- 6 23- 6 26- 9 12- 6 3- 6 5- 6 20- 3 25- 6 13- 6 10- 6 21- 6 29- 6 1999 1034.8 1028.5 1025.4 1026.1 1024.3 1022.0 1018.7 1022.6 1024.4 1026.7 1030.7 1034.5 1034.8 DAY-HOUR 2- 6 12- 6 19- 6 23- 6 27- 6 17- 3 19- 3 20- 6 30- 6 26- 6 14- 6 11- 6 2000 1028.4 1029.1 1026.7 1024.1 1022.9 1021.8 1020.4 1021.0 1024.3 1028.5 1036.9 1030.1 1036.9 DAY-HOUR 31- 6 29- 6 27- 6 3- 6 5- 6 16- 6 30-18 23- 6 29- 6 16- 6 17- 6 4- 6 2001 1027.5 1031.8 1029.4 1028.2 1020.8 1022.1 1018.9 1021.9 1027.4 1031.3 1028.8 1029.9 1031.8 DAY-HOUR 17- 6 10- 6 1-21 1-21 11-18 2- 3 29- 6 5- 6 22- 6 10- 6 2- 6 18- 6 2002 1029.3 1028.9 1033.7 1026.1 1022.9 1021.9 1021.4 1021.6 1025.4 1027.5 1032.7 1033.1 1033.7 DAY-HOUR 26- 6 6- 6 11- 6 1- 6 17- 6 25- 3 3- 3 30- 6 30- 6 10- 6 18- 6 3-18 2003 1027.7 1026.6 1029.7 1024.6 1028.5 1020.5 1018.6 1020.5 1027.9 1027.2 1034.6 1034.7 1034.7 DAY-HOUR 12- 6 12-21 3- 6 30- 6 2- 6 7- 3 4- 3 30- 3 27- 6 15- 6 25- 6 12- 6 1991-2003 1034.8 1033.0 1033.7 1031.8 1028.5 1024.1 1022.9 1025.5 1030.6 1032.9 1037.1 1034.7 1037.1 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 96- 4 96-30 94-23 96- 2 96-18 3-12 96-18 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 48 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MIN. OF QNH PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1011.0 1017.1 1014.4 1008.1 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 3-12 4-12 5-12 25-21 1992 1007.0 1005.2 1005.2 1007.5 1011.1 1006.0 1008.6 1008.7 1012.3 1015.8 1008.2 1012.8 1005.2 DAY-HOUR 3- 0 11-12 31- 0 18-15 19-12 27-12 24-12 1-12 18-12 5-12 26- 9 28- 9 1993 1007.8 1011.5 1005.8 1008.5 1010.4 1008.4 1009.1 1010.2 1012.3 1015.3 1006.4 1015.0 1005.8 DAY-HOUR 8-12 15-12 22- 0 21- 0 7- 9 19-12 13-12 12-15 14-12 1-12 14- 9 5-12 1994 1008.5 1005.2 1007.8 1006.5 1007.3 1004.1 1006.3 1006.4 1013.3 1016.5 1006.7 1004.8 1004.1 DAY-HOUR 16-15 1-15 12-12 2-15 1-15 22-15 20-12 1-12 1-12 14-12 26- 6 4- 9 1995 1013.3 1010.3 1003.9 1008.7 1012.1 1004.9 1002.8 1008.5 1010.0 1012.7 1003.8 1016.7 1002.8 DAY-HOUR 1-12 5-12 26-12 24-21 8- 0 30-21 1-12 3-12 19-12 12-12 26- 0 4-12 1996 1013.0 1005.4 1007.8 1007.4 1012.8 1006.5 1009.2 1008.5 1008.1 1010.5 1017.4 1015.7 1005.4 DAY-HOUR 7- 0 5-15 26- 9 10- 9 29-15 6-12 6-12 8-12 22-12 27-12 29-12 25- 0 1997 1006.4 1005.6 1005.2 1005.0 1006.5 1007.6 1005.0 1008.7 1009.1 1016.2 1017.8 1010.3 1005.0 DAY-HOUR 31-21 1- 0 30- 0 10- 0 5- 0 23-15 16-12 14-12 2-15 1-12 20-12 10-12 1998 998.7 1004.0 1006.6 1005.4 1006.7 1010.6 1002.7 1011.2 1009.4 1011.4 1015.4 1014.9 998.7 DAY-HOUR 13-15 13-15 30- 6 24-12 30- 6 29-12 5-15 5-15 6-12 2-12 1-12 21-12 1999 1011.9 1004.8 1009.4 1007.8 1005.8 1001.3 1007.2 1009.5 1010.9 1014.0 1012.1 1016.0 1001.3 DAY-HOUR 19- 3 21- 3 3- 9 9- 3 14-15 25-15 12-15 7-12 16-12 31-12 26-12 15-12 2000 1007.6 1005.7 1008.8 1010.9 1005.2 1005.6 1008.6 1008.3 1007.7 1014.6 1014.9 1009.4 1005.2 DAY-HOUR 21- 3 7-12 9-12 23-12 27-12 25-15 8-15 3-15 1-12 1-12 6-12 16- 0 2001 1015.6 1002.5 1003.7 1007.4 1004.7 1006.4 1004.7 1006.0 1010.2 1012.8 1010.1 1014.9 1002.5 DAY-HOUR 4-12 21-18 26- 0 12-21 30-12 7-12 18-12 27-12 5-15 31-12 17-12 5-12 2002 1010.1 1009.2 1007.5 1001.5 1008.5 1001.5 1007.3 1006.5 1013.3 1015.6 1014.0 1006.7 1001.5 DAY-HOUR 8-12 25-12 28-18 4-12 12-15 21-12 24-15 17-12 18-12 22-12 12-12 22- 3 2003 1004.1 1002.9 1006.4 1011.5 1010.9 1006.0 1005.4 1008.3 1009.6 1012.7 1011.5 1013.1 1002.9 DAY-HOUR 29- 0 20-21 27- 0 14-15 8-15 30-12 30-15 1- 0 7-12 27-12 14-12 7- 0 1991-2003 998.7 1002.5 1003.7 1001.5 1004.7 1001.3 1002.7 1006.0 1007.7 1010.5 1003.8 1004.8 998.7 YEAR-DAY 98-13 1-21 1-26 2- 4 1-30 99-25 98- 5 1-27 0- 1 96-27 95-26 94- 4 98-13 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 49 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1013.9 1020.9 1024.6 1022.0 ****** 1992 1024.6 1019.2 1021.0 1014.5 1015.6 1007.2 1005.6 1010.5 1015.1 1020.1 1022.7 1023.3 1016.6 1993 1026.7 1022.9 1020.3 1014.7 1012.9 1007.8 1006.4 1009.7 1012.5 1024.5 1024.3 1027.3 1017.5 1994 1024.6 1021.6 1018.0 1016.3 1011.5 1004.0 1003.0 1005.6 1018.5 1022.6 1019.5 1026.1 1015.9 1995 1025.4 1022.5 1019.4 1014.6 1014.3 1006.5 1001.5 1006.1 1012.3 1020.6 1021.5 1028.0 1016.1 1996 1027.5 1021.6 1018.7 1016.7 1013.9 1007.2 1006.9 1008.6 1009.7 1019.7 1027.5 1026.4 1017.0 1997 1022.0 1021.6 1015.8 1012.2 1012.5 1004.9 1001.1 1005.5 1011.9 1016.1 1023.1 1022.6 1014.1 1998 1021.6 1020.6 1016.6 1012.1 1013.9 1009.7 1004.2 1008.6 1012.6 1020.1 1023.2 1026.7 1015.8 1999 1025.3 1020.1 1018.5 1016.3 1012.1 1005.6 1004.7 1006.5 1011.9 1018.1 1023.3 1028.7 1015.9 2000 1023.2 1022.8 1018.3 1013.0 1007.6 1006.9 1006.6 1008.0 1012.4 1021.4 1027.9 1026.3 1016.2 2001 1029.2 1023.7 1019.4 1014.1 1009.4 1006.2 1006.2 1009.2 1014.2 1019.7 1023.0 1026.7 1016.8 2002 1022.9 1020.6 1016.6 1011.2 1009.1 1003.9 1005.2 1004.1 1011.8 1015.9 1022.6 1024.2 1014.0 2003 1023.3 1017.4 1016.8 1014.0 1013.8 1005.5 1001.0 1006.6 1011.4 1015.7 1023.1 1026.8 1014.6 MEAN 1024.7 1021.2 1018.3 1014.1 1012.2 1006.3 1004.4 1007.4 1012.9 1019.6 1023.6 1025.8 1015.9 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 50 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MAX. OF QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1027.8 1029.0 1033.9 1033.8 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 16- 9 28-15 24- 3 17- 6 1992 1040.6 1032.3 1038.8 1022.7 1028.0 1016.0 1012.2 1023.3 1024.8 1028.5 1035.0 1033.8 1040.6 DAY-HOUR 10- 6 16-18 12-15 4- 3 2-18 7- 3 14- 6 31-21 30- 6 18- 3 4- 3 29- 6 1993 1038.1 1033.2 1033.0 1026.6 1027.2 1020.0 1013.7 1016.3 1025.2 1033.5 1035.8 1035.1 1038.1 DAY-HOUR 19-18 9- 3 17- 6 1- 3 9-18 23- 3 29- 3 25- 3 23- 3 8- 3 30- 9 6-18 1994 1038.3 1035.1 1027.7 1036.6 1020.8 1012.7 1009.6 1010.5 1028.0 1029.5 1027.9 1040.3 1040.3 DAY-HOUR 10- 6 18- 6 3-18 5- 6 7-18 9- 3 3- 3 15- 6 23- 6 10- 3 20- 3 8- 3 1995 1036.6 1032.0 1032.2 1023.8 1024.1 1019.2 1008.1 1015.2 1022.5 1036.6 1035.4 1037.3 1037.3 DAY-HOUR 7- 6 17-18 5-18 7- 6 28-18 1- 9 25- 0 25- 6 22- 6 18- 6 28- 3 11- 3 1996 1040.5 1030.4 1026.2 1030.4 1021.8 1024.0 1018.0 1022.3 1022.6 1032.5 1042.7 1041.4 1042.7 DAY-HOUR 10-18 3-18 1- 6 5- 6 3- 3 13-15 22- 9 30- 6 25- 3 3- 3 18-18 8- 3 1997 1032.6 1033.9 1035.2 1024.1 1023.2 1014.0 1008.0 1014.2 1022.1 1025.1 1038.0 1035.9 1038.0 DAY-HOUR 24- 6 8- 3 11- 6 14- 6 7- 6 4-18 9- 6 28- 6 7- 6 9- 3 8- 6 29- 6 1998 1033.8 1038.4 1027.7 1025.8 1027.8 1016.5 1011.4 1014.1 1023.7 1035.4 1033.9 1035.6 1038.4 DAY-HOUR 23- 3 23- 6 4- 6 12- 6 3- 6 5- 6 20- 3 25- 6 13- 3 10- 6 21- 3 29-15 1999 1041.5 1031.9 1031.2 1027.7 1021.3 1016.2 1012.1 1014.9 1024.4 1026.9 1036.2 1041.0 1041.5 DAY-HOUR 2- 6 12- 6 19- 6 23- 3 12- 6 17- 3 19- 3 20- 6 29- 3 26- 6 30- 6 1- 3 2000 1034.5 1036.0 1031.1 1024.3 1017.8 1017.9 1013.7 1014.8 1022.2 1031.1 1042.1 1035.3 1042.1 DAY-HOUR 31- 3 11- 6 1- 3 3- 6 6- 3 14- 3 26- 0 23- 6 26- 3 16- 6 17- 3 10- 6 2001 1039.4 1039.1 1033.8 1029.8 1016.8 1017.2 1014.7 1016.9 1027.8 1034.0 1034.0 1034.8 1039.4 DAY-HOUR 30- 3 10- 6 11-18 2- 3 1- 3 2- 3 30- 3 14- 3 22- 3 11- 3 20- 6 18- 6 2002 1033.7 1033.7 1037.7 1025.0 1019.2 1014.3 1013.5 1012.8 1020.4 1021.6 1034.3 1041.5 1041.5 DAY-HOUR 26- 6 6- 3 11- 6 1- 6 18- 3 25- 3 3- 3 31- 6 30- 3 26- 3 19- 3 4- 3 2003 1033.2 1029.1 1035.7 1025.1 1029.7 1017.0 1008.7 1012.9 1025.3 1025.2 1037.8 1042.5 1042.5 DAY-HOUR 22- 3 13- 3 3- 3 18-18 2- 6 7- 3 5- 6 30- 3 27- 3 16- 3 25- 6 12-15 1991-2003 1041.5 1039.1 1038.8 1036.6 1029.7 1024.0 1018.0 1023.3 1028.0 1036.6 1042.7 1042.5 1042.7 YEAR-DAY 99- 2 1-10 92-12 94- 5 3- 2 96-13 96-22 92-31 94-23 95-18 96-18 3-12 96-18 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 51 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MIN. OF QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1003.1 1013.4 1011.4 1010.2 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 21-15 1- 0 5-12 25-21 1992 1007.5 1003.8 1002.7 1002.6 1006.1 997.7 1000.5 1000.6 1006.2 1011.9 1006.2 1013.4 997.7 DAY-HOUR 3- 0 25-12 31- 0 15-12 19-15 27-21 24-12 1-12 18-12 13-21 26- 9 28- 0 1993 1013.0 1010.9 1007.0 1001.3 1004.4 998.6 1000.6 1003.3 1004.7 1009.5 1006.3 1017.5 998.6 DAY-HOUR 9-12 3-12 22- 0 21- 0 23-15 19-12 13-12 12-12 14-12 1-12 14- 6 5-12 1994 1011.3 1006.3 1004.6 1002.0 1002.2 994.9 997.3 996.8 1007.6 1013.8 1005.9 1002.5 994.9 DAY-HOUR 17- 3 1-15 8- 0 2-12 1-21 22-15 7-15 2- 9 1-12 15-12 26- 6 4- 0 1995 1015.2 1010.5 1000.6 1006.5 1005.4 994.4 993.2 999.1 1002.4 1007.4 1001.1 1019.7 993.2 DAY-HOUR 17-12 5-12 26-12 24-21 7-12 30-18 1-12 3-15 20-12 12-21 26- 0 4-21 1996 1011.8 1007.5 1004.9 1002.2 1007.5 997.5 1001.0 1001.3 999.3 1007.2 1017.3 1015.4 997.5 DAY-HOUR 7- 0 11- 0 26-12 10- 6 25-15 6-12 6-15 8-12 9-12 27-12 29- 9 30- 0 1997 1006.2 1006.2 1001.7 999.6 997.8 998.0 990.7 999.0 999.6 1007.9 1013.8 1007.8 990.7 DAY-HOUR 17-15 27-12 25- 9 10- 0 5- 0 23-15 14-18 13-12 2-15 3-12 5-12 10-21 1998 999.6 882.0 1000.3 999.4 999.5 1002.1 978.6 1002.5 1001.2 1004.3 1011.8 1016.2 882.0 DAY-HOUR 13-15 10- 3 30- 3 24-12 22- 3 28-18 5- 3 23-12 6-12 2-12 1-12 21-12 1999 1010.9 1003.5 1009.3 1004.5 997.6 992.2 998.8 999.4 1003.2 1011.2 1009.0 1015.4 992.2 DAY-HOUR 10- 3 21- 3 21-15 9- 3 20-15 25-15 5-15 30-15 16-12 19- 9 1-12 15-12 2000 1009.9 1007.0 1004.2 1004.6 996.4 996.4 999.2 1000.2 1000.9 1010.7 1016.8 1012.9 996.4 DAY-HOUR 7- 9 7-12 25- 0 11-12 27-12 24-15 8-15 3-12 1-12 1-12 6-12 16- 0 2001 1018.4 1004.6 1001.6 1002.5 998.5 998.2 997.9 998.4 1002.4 1011.0 1009.0 1016.5 997.9 DAY-HOUR 5- 0 21-18 26- 0 13- 0 30-12 18-21 18-12 27-12 1- 0 21-21 19- 0 5-15 2002 1006.9 1007.2 1000.6 998.4 999.4 989.8 997.4 996.8 1005.3 1009.7 1009.3 1005.2 989.8 DAY-HOUR 8-12 27- 0 28-21 4-12 30-12 21-12 25-12 17-12 18-12 22-12 13- 0 22- 0 2003 1004.1 1000.7 1002.0 1005.0 1003.7 996.5 994.8 996.0 1001.7 1006.2 1009.4 1011.0 994.8 DAY-HOUR 29- 0 20-21 27- 0 27-21 23-12 30-12 31-15 1- 0 7-12 27-12 14-12 7- 0 1991-2003 999.6 882.0 1000.3 998.4 996.4 989.8 978.6 996.0 999.3 1004.3 1001.1 1002.5 882.0 YEAR-DAY 98-13 98-10 98-30 2- 4 0-27 2-21 98- 5 3- 1 96- 9 98- 2 95-26 94- 4 98-10 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 52 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF COMPUTED QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1011.8 1019.4 1022.9 1020.3 ****** 1992 1023.6 1017.7 1019.6 1012.8 1013.6 1005.2 1003.8 1008.7 1013.4 1018.5 1021.2 1021.7 1015.0 1993 1025.5 1021.3 1018.6 1012.9 1010.9 1006.0 1004.6 1008.0 1010.7 1022.8 1023.8 1026.1 1015.9 1994 ****** ****** 1016.1 1014.6 1009.8 ****** 1001.2 ****** 1016.9 1021.3 1017.8 1024.7 ****** 1995 1024.0 1021.1 1017.8 1012.8 1012.6 1004.8 999.7 1004.2 1010.6 1019.0 1020.0 1026.6 1014.4 1996 1026.2 1020.0 1016.8 ****** ****** ****** ****** ****** ****** 1017.9 1026.0 1024.9 ****** 1997 1021.5 1021.8 1015.5 1012.0 1012.4 1004.5 1000.9 1005.3 1011.6 1015.8 1023.0 1022.3 1013.9 1998 1021.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1999 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2000 ****** ****** 1016.7 1011.7 ****** ****** ****** 1006.0 1009.4 1018.1 1024.7 1023.2 ****** 2001 1026.3 1020.8 1016.4 1011.0 1006.3 1003.2 1003.2 1006.2 1011.1 1016.7 1019.9 1023.6 1013.7 2002 1023.0 1020.5 1016.6 1011.2 1009.1 1003.9 1005.2 1004.1 1011.8 1015.9 1022.5 1024.1 1014.0 2003 1023.4 1017.3 1016.8 1014.0 1013.8 1005.4 1001.0 1006.6 1011.4 1015.7 1023.1 1026.8 1014.6 MEAN 1023.8 1020.1 1017.1 1012.6 1011.0 1004.7 1002.4 1006.1 1011.9 1018.3 1022.3 1024.0 1014.5 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 53 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MAX. OF COMPUTED QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1023.4 1026.1 1032.7 1032.3 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 28- 3 14- 3 24- 3 17- 6 1992 1039.5 1031.3 1038.2 1021.2 1026.5 1014.2 1010.4 1019.8 1023.0 1027.2 1033.4 1032.6 1039.5 DAY-HOUR 10- 6 16-18 12-15 4- 3 2-18 7- 3 14- 6 31- 6 30- 6 18- 3 4- 3 29- 6 1993 1037.2 1030.8 1031.7 1024.9 1025.6 1017.9 1011.4 1014.4 1023.2 1032.1 1033.6 1033.7 1037.2 DAY-HOUR 19-18 9- 6 17- 6 1- 3 9-18 23- 6 29- 3 25- 3 23- 3 8- 3 30-15 6-18 1994 ****** ****** 1026.2 1035.1 1018.9 ****** 1007.8 ****** 1026.0 1027.7 1025.2 1039.9 ****** DAY-HOUR **-** **-** 3-18 5- 6 19- 3 **-** 3- 3 **-** 23- 6 10- 3 20- 3 8- 3 1995 1035.1 1030.6 1030.9 1022.2 1022.2 1015.5 1006.1 1013.3 1020.4 1035.2 1034.3 1036.4 1036.4 DAY-HOUR 7- 6 17-18 5-18 7- 6 28-18 1- 6 25- 3 25- 6 22- 6 18- 6 28- 3 11- 3 1996 1039.4 1029.3 1024.7 ****** ****** ****** ****** ****** ****** 1031.1 1041.4 1038.9 ****** DAY-HOUR 10-18 3-18 21- 6 **-** **-** **-** **-** **-** **-** 3- 3 18-18 8- 3 1997 1033.0 1034.3 1034.7 1024.1 1023.1 1013.0 1007.0 1013.0 1022.0 1024.4 1037.9 1035.9 1037.9 DAY-HOUR 24- 3 8- 3 11- 6 14- 6 6-21 4-18 9- 6 28- 3 7- 6 9- 3 8- 6 28-18 1998 1032.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 23- 3 **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1999 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 2000 ****** ****** 1029.9 1022.5 ****** ****** ****** 1012.7 1018.9 1027.7 1040.4 1032.2 ****** DAY-HOUR **-** **-** 1- 3 3- 6 **-** **-** **-** 20- 3 26- 3 16- 6 17- 6 10- 6 2001 1037.0 1035.5 1031.4 1026.4 1013.6 1013.9 1011.4 1013.7 1024.5 1030.9 1030.8 1031.8 1037.0 DAY-HOUR 30- 3 10- 6 11-18 2- 3 1- 6 2- 3 30- 3 14- 3 22- 3 11- 3 20- 6 3-18 2002 1033.7 1033.9 1037.5 1025.0 1019.3 1014.3 1013.5 1012.7 1020.3 1021.6 1034.3 1041.5 1041.5 DAY-HOUR 26- 6 6- 3 11- 6 1- 6 18- 3 25- 3 3- 3 31- 6 30- 3 26- 3 19- 3 4- 3 2003 1033.2 1029.1 1035.7 1025.1 1029.6 1017.0 1008.7 1012.9 1025.3 1025.2 1037.7 1042.6 1042.6 DAY-HOUR 22- 3 13- 3 3- 3 18-18 2- 6 7- 3 5- 6 30- 3 27- 3 16- 3 25- 6 12-18 1991-2003 1039.5 1035.5 1038.2 1035.1 1029.6 1017.9 1013.5 1019.8 1026.0 1035.2 1041.4 1042.6 1042.6 YEAR-DAY 92-10 1-10 92-12 94- 5 3- 2 93-23 2- 3 92-31 94-23 95-18 96-18 3-12 3-12 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 54 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MIN. OF COMPUTED QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1002.1 1011.7 1009.8 1008.7 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 3-12 4-12 5-12 25-21 1992 1005.8 1002.0 1001.0 1000.8 1004.3 996.0 998.9 999.0 1004.8 1010.8 1004.7 1011.7 996.0 DAY-HOUR 3- 0 25-12 31- 0 15-12 19-12 27-21 26-15 1-12 18-12 13-21 26- 9 28- 0 1993 1012.1 1009.1 1005.2 1000.0 1002.5 997.1 998.9 1001.8 1002.9 1007.8 1006.5 1017.1 997.1 DAY-HOUR 9-12 3-12 22- 0 21- 0 23-15 19-12 13-12 12-12 14-12 1-12 14- 3 4-15 1994 ****** ****** 1003.1 1000.3 1000.6 ****** 995.7 ****** 1007.1 1012.1 1003.9 1000.7 ****** DAY-HOUR **-** **-** 8- 0 2-12 1-21 **-** 7-15 **-** 1-15 2- 9 26- 6 4- 0 1995 1013.6 1008.5 999.2 1004.7 1002.6 992.6 991.2 997.5 1000.5 1005.7 999.6 1017.9 991.2 DAY-HOUR 17-12 9-12 26-12 24-21 8- 0 30-21 1-12 3-15 20-12 12-21 26- 0 4-21 1996 1010.2 1005.9 1003.5 ****** ****** ****** ****** ****** ****** 1004.3 1015.8 1013.8 ****** DAY-HOUR 7- 0 11- 0 26-12 **-** **-** **-** **-** **-** **-** 31- 0 10- 0 30- 0 1997 1008.0 1005.8 1001.2 999.4 997.6 998.1 992.7 998.9 999.6 1007.8 1013.6 1007.5 992.7 DAY-HOUR 31-21 22-21 25- 9 10- 0 5- 0 23-15 16-12 13-12 2-15 3-12 5-12 10-21 1998 999.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 13-15 **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1999 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 2000 ****** ****** 1002.8 1003.2 ****** ****** ****** 998.6 997.9 1007.5 1013.6 1009.7 ****** DAY-HOUR **-** **-** 25- 0 11-12 **-** **-** **-** 3-15 1-12 1-12 6-12 16- 0 2001 1015.0 1001.3 998.4 999.3 995.4 995.6 994.7 995.4 1000.3 1008.3 1005.7 1013.5 994.7 DAY-HOUR 4-21 21-18 26- 0 13- 0 30-12 7-15 18-12 27-12 1- 0 31-12 19- 0 5-21 2002 1006.6 1007.3 1000.6 998.4 999.3 989.8 997.3 996.7 1005.1 1009.7 1009.2 1005.3 989.8 DAY-HOUR 8-12 27- 0 28-21 4-12 30-12 21-12 25-12 17-12 18-12 22-12 13- 0 22- 0 2003 1004.1 1000.7 1001.9 1005.0 1003.6 996.5 994.8 996.0 1001.7 1006.1 1009.4 1011.0 994.8 DAY-HOUR 29- 0 20-21 27- 0 27-21 23-12 30-12 31-15 1- 0 7-12 27-12 14-12 7- 0 1991-2003 999.7 1000.7 998.4 998.4 995.4 989.8 991.2 995.4 997.9 1004.3 999.6 1000.7 989.8 YEAR-DAY 98-13 3-20 1-26 2- 4 1-30 2-21 95- 1 1-27 0- 1 96-31 95-26 94- 4 2-21 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 55 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M AVERAGE OF QFE PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ****** ****** ****** ****** ****** ****** ****** ****** 881.0 884.0 884.8 880.9 ****** 1992 880.8 877.7 879.6 877.7 879.8 876.4 876.2 879.0 881.5 883.0 884.0 882.1 879.8 1993 882.6 881.2 879.8 878.9 879.0 877.1 876.9 878.9 880.3 886.2 885.1 885.5 881.0 1994 ****** ****** 879.7 880.5 879.1 ****** 874.8 ****** 883.8 ****** 881.8 883.4 ****** 1995 883.4 881.3 879.9 878.4 880.3 876.4 873.7 876.9 879.5 883.7 882.5 885.0 880.1 1996 884.1 880.3 ****** ****** ****** ****** ****** ****** ****** 883.1 886.5 884.9 ****** 1997 881.3 880.9 877.2 877.9 880.2 876.6 874.6 877.3 880.8 882.5 884.6 882.4 879.7 1998 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1999 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2000 ****** ****** 879.6 879.6 ****** ****** ****** 878.0 879.3 883.6 885.6 883.4 ****** 2001 884.0 880.6 879.9 878.8 877.4 875.7 876.0 878.3 880.2 882.8 882.8 884.5 880.1 2002 882.4 880.9 879.9 877.4 878.1 876.1 877.2 876.7 881.0 883.2 884.7 882.5 880.0 2003 882.0 878.5 879.0 879.8 880.8 876.7 874.6 878.4 880.4 882.4 884.5 885.3 880.2 MEAN 882.6 880.2 879.4 878.8 879.3 876.4 875.5 877.9 880.8 883.4 884.3 883.6 880.2 =============================================================================================== TEHRAN 2002,MAY M.(S & A) STATION NEYSHABOOR (40746) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 56 LATITUDE 36 16 N LONGITUDE 58 48 E DATA PROCESSING CENTER ELEVATION 1213.0 M MAX. OF QFE PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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OF QFE PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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OF QNH PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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OF QNH PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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OF QFF PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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OF QFF PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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OF COMPUTED QFF PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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OF COMPUTED QFF PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1003.0 1012.0 1012.4 1010.1 ****** DAY ** ** ** ** ** ** ** ** 8 5 6 26 1992 1005.8 1004.7 1001.0 1004.5 1005.1 996.8 1001.2 1002.1 1005.6 1011.9 1007.8 1011.7 996.8 DAY 3 25 31 19 19 27 24 2 18 14 26 28 1993 1013.2 1011.0 1005.2 1000.0 1005.2 997.9 1000.9 1002.3 1004.2 1009.0