STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** 8.1 15.3 20.2 26.7 28.5 26.0 21.4 13.9 9.3 5.7 ***** MINIMUN AIR TEMPERATURE (C) ***** ***** 1.4 6.7 10.7 14.1 17.4 15.8 10.6 5.1 2.8 -2.1 ***** DAYS WITH MINIMUM TEMP. >=21 **** **** 0 0 0 0 4 0 0 0 0 0 **** DAYS WITH MINIMUM TEMP. <=-4 **** **** 1 0 0 0 0 0 0 0 2 9 **** DAYS WITH FREEZING MIN.<= 0 **** **** 10 0 0 0 0 0 0 1 12 21 **** TEMPERATURE RECORDS LOWEST(C) ***** ***** -4.0 1.5 4.4 9.0 14.0 12.8 6.6 -0.2 -4.0 -8.2 ***** DAY ** ** 24 6 8 5 17 4 30 9 17 13 MAXIMUM AIR TEMPERATURE (C) ***** ***** 12.4 20.4 25.1 32.1 33.7 33.1 30.2 21.6 16.1 14.2 ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** 0 0 4 23 31 30 15 0 0 0 **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** 0 0 0 0 0 0 0 0 0 0 **** TEMPERATURE RECORDS HIGHEST(C)***** ***** 18.5 26.8 31.6 36.2 36.8 35.8 33.6 28.8 22.2 19.8 ***** DAY ** ** 31 19 27 18 15 15 3 1 3 19 DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** 11.0 13.7 14.4 18.0 16.3 17.3 19.6 16.5 13.3 16.3 ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** 6.9 13.6 17.9 23.1 25.6 24.4 20.4 13.4 9.4 6.0 ***** COOLING DEG. DAYS(BASE 21 0C)****** ****** 0.0 0.0 6.4 71.1 141.2 106.6 16.4 0.0 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C)****** ****** 343.2 133.6 43.5 0.0 0.0 0.0 0.9 144.6 256.8 370.8 ****** DEWPOINT (MEAN C) ***** ***** -3.4 -1.4 0.9 -0.6 0.4 1.4 -3.4 -1.3 -3.0 -5.0 ***** MIXING RATIO (G/KG) ****** ****** 3.90 4.46 5.19 4.60 4.98 5.35 3.75 4.39 4.00 3.33 ****** VAPOUR PRESSURE (HPA) ****** ****** 5.06 5.79 6.74 5.97 6.45 6.93 4.88 5.74 5.21 4.35 ****** SATURATION DEF. (HPA) ****** ****** 6.14 12.35 18.12 30.70 33.91 28.38 22.46 11.15 7.27 5.48 ****** RELATIVE HUMIDITY (MEAN %) *** *** 50 36 31 18 18 22 21 38 46 50 *** RELATIVE HUMIDITY (MAX. %) *** *** 74 59 53 33 33 35 37 54 68 73 *** RELATIVE HUMIDITY (MIN. %) *** *** 33 24 20 12 11 13 11 25 26 29 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** 72 57 51 33 33 35 37 52 65 69 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** 42 28 24 14 14 15 13 27 32 33 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** 45 31 27 14 14 16 14 33 37 40 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. ****** ****** 58.0 3.6 13.2 0.0 0.8 0.7 0.0 0.1 21.3 0.5 ****** DAYS WITH PRECIPITATION >=10 **** **** 2 0 1 0 0 0 0 0 1 0 **** DAYS WITH PRECIPITATION >= 5 **** **** 4 0 1 0 0 0 0 0 2 0 **** DAYS WITH PRECIPITATION >= 1 **** **** 6 1 2 0 0 0 0 0 4 0 **** DAYS WITH PRECIPITATION **** **** 14 4 7 1 1 1 0 2 5 1 **** GREATEST DAILY PRECIPITATION ****** ****** 25.0 2.0 11.0 0.0 0.8 0.7 0.0 0.1 11.0 0.5 ****** DAY ** ** 9 27 6 ** 31 25 ** 26 12 25 DAY WITH THUNDER STORM **** **** 0 0 0 0 1 0 0 0 1 0 **** DAYS WITH SNOW OR SLEET **** **** 1 0 0 0 0 0 0 0 0 0 **** DAYS WITH DUST **** **** 1 3 1 1 1 1 0 0 0 0 **** WIND DIRECTION (PREVAILING) *** *** 270 270 270 45 45 45 45 45 225 225 *** PREVAILING WIND SPEED(KNOTS) **** **** 9.9 11.3 12.6 9.6 10.1 9.7 8.5 7.8 13.3 10.7 **** PREVAILING WIND PERCENT ***** ***** 15.5 26.0 18.1 18.0 30.3 23.3 17.1 13.3 21.3 10.1 ***** CALMS PERCENT OF WIND ***** ***** 37.4 31.3 30.3 37.3 36.8 42.6 57.5 60.5 52.1 73.8 ***** NO. OF WIND OBSERVATION **** **** 155 150 155 150 155 223 240 248 240 248 1964 VECTOR WIND DIRECTION (MEAN) *** *** 229 252 254 317 39 22 37 336 233 249 *** VECTOR WIND MAGNITUDE(KNOTS) **** **** 2.6 4.6 3.6 1.1 3.9 3.0 1.8 0.7 3.3 1.0 **** WIND STEADINESES (MEAN %) ***** ***** 44.1 68.7 50.0 16.9 61.9 53.6 51.4 21.9 63.5 43.5 ***** WIND SPEED (MEAN KNOTS) **** **** 5.9 6.7 7.2 6.5 6.3 5.6 3.5 3.2 5.2 2.3 **** FASTEST WIND DIRECTION *** *** 190 260 270 240 360 280 250 210 250 220 *** FASTEST WIND SPEED (KNOTS) *** *** 35 29 35 29 27 27 19 25 29 23 *** DAY ** ** 8 21 20 4 16 27 27 30 6 4 DAYS WITH SKY CLEAR (0-2)/8 **** **** 13 11 11 29 26 23 30 17 14 17 **** DAYS WITH P.CLOUDY (3-6)/8 **** **** 10 13 15 1 5 8 0 14 15 14 **** DAYS WITH CLOUDY (7-8)/8 **** **** 8 6 5 0 0 0 0 0 1 0 **** DAYS WITH VISIBILITY =< 2 KM **** **** 1 1 0 0 1 1 0 0 1 0 **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** 310.8 ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 ****** ****** 813.6 814.4 815.1 812.8 812.0 813.6 815.2 819.6 816.7 817.8 ****** MAX. QFE PRESSURE IN HPA ****** ****** 821.6 821.6 818.2 819.2 817.3 818.8 820.8 825.2 821.8 824.9 ****** DAY-HOUR **-** **-** 31- 6 18- 6 19- 3 23- 6 27- 6 31- 6 23- 6 17- 6 21- 6 26- 6 MIN. QFE PRESSURE IN HPA ****** ****** 807.3 808.7 810.0 808.4 806.2 806.7 810.4 813.8 810.0 810.0 ****** DAY-HOUR **-** **-** 12- 9 13-12 31-12 25-15 13-12 12-15 3-15 3-12 14- 3 4-12 MEAN QNH PRESSURE IN HPA ****** ****** 1016.9 1017.8 1018.6 1015.9 1014.9 1016.9 1018.8 1024.0 1020.6 1021.9 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1026.5 1026.5 1022.4 1023.6 1021.3 1023.1 1025.5 1030.8 1026.7 1030.4 ****** DAY-HOUR **-** **-** 31- 6 18- 6 19- 3 23- 6 27- 6 31- 6 23- 6 17- 6 21- 6 26- 6 MIN. QNH PRESSURE IN HPA ****** ****** 1009.3 1011.0 1012.6 1010.6 1008.0 1008.6 1013.0 1017.1 1012.6 1012.6 ****** DAY-HOUR **-** **-** 12- 9 13-12 31-12 25-15 13-12 12-15 3-15 3-12 14- 3 4-12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 999.5 1004.7 1015.4 1015.3 1019.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1007.0 1013.4 1024.2 1025.4 1030.2 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** 31- 3 23- 3 9- 3 30- 6 27- 3 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 991.6 996.6 1004.4 1004.7 1008.2 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** 12-21 3-12 3-12 11- 0 3- 9 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 813.4 815.2 819.5 816.4 817.7 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 817.4 818.8 823.5 820.8 823.9 ****** DAY ** ** ** ** ** ** ** 31 24 18 21 27 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 808.5 812.3 816.0 810.4 811.6 ****** DAY ** ** ** ** ** ** ** 13 29 3 14 5 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1016.6 1018.8 1023.9 1020.3 1021.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1021.4 1023.1 1028.7 1025.5 1029.2 ****** DAY ** ** ** ** ** ** ** 31 24 18 21 27 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1010.8 1015.3 1019.7 1013.0 1014.5 ****** DAY ** ** ** ** ** ** ** 13 29 3 14 5 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 999.2 1004.6 1014.9 1014.4 1018.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1004.8 1010.3 1020.7 1021.0 1028.1 ****** DAY ** ** ** ** ** ** ** 31 24 9 23 27 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 992.6 999.1 1007.1 1004.7 1008.8 ****** DAY ** ** ** ** ** ** ** 13 4 3 11 3 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 814.1 815.1 815.7 813.8 812.9 814.6 816.0 820.2 817.0 818.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** 820.6 821.0 818.2 819.1 817.1 817.7 819.5 824.4 821.0 823.9 ****** DAY ** ** 31 17 19 23 27 31 23 17 21 27 MIN. QFE PRESSURE IN HPA ****** ****** 807.4 810.1 811.9 811.1 808.7 810.1 812.8 816.8 810.0 812.4 ****** DAY ** ** 12 13 7 26 12 13 29 4 14 5 MEAN QNH PRESSURE IN HPA ****** ****** 1017.5 1018.7 1019.4 1017.1 1016.0 1018.1 1019.7 1024.8 1020.9 1022.3 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1025.3 1025.7 1022.4 1023.5 1021.1 1021.8 1023.9 1029.8 1025.7 1029.2 ****** DAY ** ** 31 17 19 23 27 31 23 17 21 27 MIN. QNH PRESSURE IN HPA ****** ****** 1009.4 1012.7 1014.8 1013.9 1011.0 1012.7 1015.9 1020.7 1012.6 1015.4 ****** DAY ** ** 12 13 7 26 12 13 29 4 14 5 MEAN QFF PRESSURE IN HPA ****** ****** 1015.1 1011.0 1008.1 1001.4 999.1 1002.2 1007.3 1018.0 1016.7 1021.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1022.2 1018.7 1013.2 1008.5 1005.3 1007.0 1013.4 1024.2 1024.2 1030.2 ****** DAY ** ** 17 1 15 23 28 31 23 9 30 27 MIN. QFF PRESSURE IN HPA ****** ****** 1006.7 1004.1 1002.0 997.5 993.3 994.3 1001.6 1011.1 1005.8 1011.2 ****** DAY ** ** 12 26 29 13 10 13 4 3 11 3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 ****** ****** 814.6 815.5 815.9 814.0 813.1 815.0 816.8 821.1 817.8 819.1 ****** MAX. QFE PRESSURE IN HPA ****** ****** 821.6 821.6 818.1 819.2 817.3 818.8 820.8 825.2 821.8 824.9 ****** DAY ** ** 31 18 15 23 27 31 23 17 21 26 MIN. QFE PRESSURE IN HPA ****** ****** 808.0 810.6 811.3 811.4 808.9 810.8 813.5 817.4 811.8 813.3 ****** DAY ** ** 12 13 7 13 13 12 29 3 14 5 MEAN QNH PRESSURE IN HPA ****** ****** 1018.1 1019.2 1019.7 1017.4 1016.3 1018.6 1020.7 1025.9 1021.9 1023.5 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1026.5 1026.5 1022.3 1023.6 1021.3 1023.1 1025.5 1030.8 1026.7 1030.4 ****** DAY ** ** 31 18 15 23 27 31 23 17 21 26 MIN. QNH PRESSURE IN HPA ****** ****** 1010.2 1013.3 1014.1 1014.2 1011.2 1013.5 1016.8 1021.4 1014.7 1016.5 ****** DAY ** ** 12 13 7 13 13 12 29 3 14 5 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1000.3 1006.1 1016.8 1016.7 1022.1 ****** MAX. 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QNH PRESSURE IN HPA ****** ****** 1009.3 1011.8 1013.5 1012.7 1009.4 1012.3 1015.9 1019.4 1014.8 1014.2 ****** DAY ** ** 12 13 7 13 13 12 14 3 16 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 998.8 1004.1 1014.7 1014.4 1018.2 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1004.4 1010.7 1020.6 1023.0 1026.5 ****** DAY ** ** ** ** ** ** ** 30 23 17 30 26 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 993.2 998.1 1005.3 1006.9 1008.2 ****** DAY ** ** ** ** ** ** ** 13 14 3 13 3 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 812.8 813.3 814.1 811.6 811.0 812.6 814.0 818.3 815.7 816.6 ****** MAX. QFE PRESSURE IN HPA ****** ****** 818.8 818.5 816.9 816.4 815.8 816.1 818.2 822.2 819.1 822.4 ****** DAY ** ** 31 16 10 23 27 30 23 17 21 26 MIN. QFE PRESSURE IN HPA ****** ****** 807.4 808.7 810.0 808.9 806.2 807.5 811.0 813.8 811.7 810.0 ****** DAY ** ** 12 13 31 25 13 12 3 3 13 4 MEAN QNH PRESSURE IN HPA ****** ****** 1015.9 1016.6 1017.5 1014.5 1013.8 1015.7 1017.4 1022.6 1019.4 1020.4 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1023.1 1022.7 1020.8 1020.2 1019.5 1019.9 1022.4 1027.2 1023.5 1027.4 ****** DAY ** ** 31 16 10 23 27 30 23 17 21 26 MIN. QNH PRESSURE IN HPA ****** ****** 1009.4 1011.0 1012.6 1011.2 1008.0 1009.6 1013.8 1017.1 1014.6 1012.6 ****** DAY ** ** 12 13 31 25 13 12 3 3 13 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 997.9 1003.1 1013.5 1013.7 1017.2 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1004.6 1009.8 1018.6 1022.0 1025.5 ****** DAY ** ** ** ** ** ** ** 30 23 22 30 26 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 991.8 996.6 1004.4 1004.9 1008.4 ****** DAY ** ** ** ** ** ** ** 12 3 3 10 3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 ****** ****** 813.0 813.6 814.4 811.6 810.7 812.3 813.8 818.7 816.4 817.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** 819.0 819.1 816.9 816.0 815.0 815.9 818.2 822.5 820.5 823.1 ****** DAY ** ** 30 16 10 22 27 28 23 17 21 26 MIN. QFE PRESSURE IN HPA ****** ****** 807.9 809.2 811.0 808.4 806.6 806.7 810.4 814.1 811.8 810.3 ****** DAY ** ** 21 26 31 25 9 12 3 3 13 4 MEAN QNH PRESSURE IN HPA ****** ****** 1016.2 1016.9 1017.8 1014.5 1013.5 1015.4 1017.2 1022.9 1020.3 1021.4 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1023.3 1023.5 1020.8 1019.7 1018.6 1019.6 1022.4 1027.5 1025.1 1028.3 ****** DAY ** ** 30 16 10 22 27 28 23 17 21 26 MIN. QNH PRESSURE IN HPA ****** ****** 1010.0 1011.6 1013.8 1010.6 1008.5 1008.6 1013.0 1017.5 1014.7 1012.9 ****** DAY ** ** 21 26 31 25 9 12 3 3 13 4 MEAN QFF PRESSURE IN HPA ****** ****** 1013.6 1009.1 1006.4 998.8 996.6 999.4 1004.7 1016.0 1016.2 1020.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1020.5 1015.3 1013.0 1004.7 1002.4 1005.2 1011.8 1021.3 1024.7 1028.7 ****** DAY ** ** 23 16 5 22 27 30 23 21 30 26 MIN. QFF PRESSURE IN HPA ****** ****** 1006.6 1002.8 999.7 994.6 989.5 992.7 998.7 1007.6 1006.8 1011.2 ****** DAY ** ** 8 26 31 25 9 13 3 3 10 3 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 813.4 815.1 819.7 816.9 818.0 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 817.3 819.1 823.6 820.4 823.8 ****** DAY ** ** ** ** ** ** ** 28 23 17 20 26 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 808.1 811.7 815.9 811.6 811.4 ****** DAY ** ** ** ** ** ** ** 12 3 3 13 4 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1016.6 1018.7 1024.2 1020.8 1022.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1021.3 1023.5 1028.9 1025.0 1029.1 ****** DAY ** ** ** ** ** ** ** 28 23 17 20 26 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1010.3 1014.6 1019.6 1014.5 1014.2 ****** DAY ** ** ** ** ** ** ** 12 3 3 13 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 998.6 1004.2 1015.1 1015.8 1020.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1004.2 1010.5 1021.0 1024.8 1029.0 ****** DAY ** ** ** ** ** ** ** 28 23 21 30 26 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 992.4 998.4 1006.3 1005.9 1011.0 ****** DAY ** ** ** ** ** ** ** 12 3 2 10 3 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 813.7 815.4 819.7 816.7 817.8 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 817.6 818.9 823.5 820.6 823.8 ****** DAY ** ** ** ** ** ** ** 30 23 16 20 26 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 808.4 812.2 816.1 811.5 811.4 ****** DAY ** ** ** ** ** ** ** 12 3 3 13 4 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1017.0 1019.0 1024.1 1020.6 1021.9 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1021.7 1023.2 1028.7 1025.3 1029.1 ****** DAY ** ** ** ** ** ** ** 30 23 16 20 26 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1010.6 1015.2 1019.9 1014.4 1014.2 ****** DAY ** ** ** ** ** ** ** 12 3 3 13 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 998.7 1004.0 1014.7 1014.7 1018.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 1003.8 1009.5 1020.5 1023.7 1027.3 ****** DAY ** ** ** ** ** ** ** 30 18 8 30 26 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** 991.6 997.9 1005.9 1005.2 1009.3 ****** DAY ** ** ** ** ** ** ** 12 3 2 10 2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.0 5.5 10.3 16.4 20.8 27.1 30.7 29.7 20.8 15.5 11.7 4.2 16.5 MINIMUN AIR TEMPERATURE (C) -3.2 -4.0 1.4 7.5 11.4 14.1 19.9 17.3 9.4 6.6 3.9 -3.7 6.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 10 5 0 0 0 0 15 DAYS WITH MINIMUM TEMP. <=-4 15 18 0 0 0 0 0 0 0 0 0 18 51 DAYS WITH FREEZING MIN.<= 0 24 27 10 0 0 0 0 0 0 0 8 24 93 TEMPERATURE RECORDS LOWEST(C) -11.6 -9.6 -3.6 1.2 6.2 10.4 16.0 12.8 2.8 0.6 -2.6 -10.6 -11.6 DAY 11 21 6 6 7 6 1 23 23 13 12 8 MAXIMUM AIR TEMPERATURE (C) 10.2 11.2 15.7 21.7 25.9 33.0 36.3 36.0 26.6 20.9 16.6 9.3 22.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 3 27 31 31 4 0 0 0 96 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 1 1 TEMPERATURE RECORDS HIGHEST(C) 17.6 17.6 22.2 27.2 31.4 36.6 39.0 38.8 33.6 26.6 21.4 16.4 39.0 DAY 1 28 30 28 31 25 25 6 3 1 4 29 DIF. BETWEEN (MAX.-MIN.) (C) 13.4 15.2 14.3 14.2 14.5 18.9 16.4 18.7 17.2 14.3 12.7 13.0 15.3 MEAN DAILY TEMP. (MDT) (C) 3.5 3.6 8.5 14.6 18.7 23.5 28.1 26.6 18.0 13.7 10.2 2.8 14.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 7.9 78.1 220.6 175.1 12.0 0.0 0.0 0.0 493.8 HEATING DEG. DAYS(BASE 18 0C) 449.9 401.9 293.6 108.7 17.1 0.0 0.0 0.0 38.6 133.1 232.6 470.3 2145.8 DEWPOINT (MEAN C) -4.6 -6.8 -4.0 1.2 1.8 -1.1 2.1 -1.4 -4.1 1.3 1.2 -9.0 -1.9 MIXING RATIO (G/KG) 3.45 2.94 3.68 5.36 5.54 4.55 5.74 4.40 3.74 5.45 5.39 2.57 4.40 VAPOUR PRESSURE (HPA) 4.49 3.82 4.78 6.96 7.20 5.89 7.39 5.69 4.87 7.11 7.01 3.36 5.71 SATURATION DEF. (HPA) 4.89 5.71 8.42 12.70 18.49 31.80 38.56 38.22 21.19 11.29 7.34 5.52 17.01 RELATIVE HUMIDITY (MEAN %) 54 46 42 40 31 18 18 15 21 43 53 43 35 RELATIVE HUMIDITY (MAX. %) 78 70 68 67 50 32 31 27 34 70 74 69 56 RELATIVE HUMIDITY (MIN. %) 36 29 27 25 22 11 11 9 14 26 38 24 23 RELATIVE HUMIDITY (MEAN% 03UTC) 74 67 67 64 49 32 31 27 34 68 72 65 54 RELATIVE HUMIDITY (MEAN% 09UTC) 42 37 33 30 24 14 14 11 16 32 43 30 27 RELATIVE HUMIDITY (MEAN% 15UTC) 49 39 34 36 28 13 13 11 17 40 52 42 31 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 8.7 9.2 22.4 12.2 7.0 0.0 0.0 0.0 0.0 21.3 70.7 11.9 163.4 DAYS WITH PRECIPITATION >=10 0 0 1 0 0 0 0 0 0 0 2 0 3 DAYS WITH PRECIPITATION >= 5 0 1 1 1 0 0 0 0 0 1 3 1 8 DAYS WITH PRECIPITATION >= 1 4 2 4 4 2 0 0 0 0 7 4 3 30 DAYS WITH PRECIPITATION 5 5 7 8 6 0 0 0 0 13 7 7 58 GREATEST DAILY PRECIPITATION 4.0 7.0 16.9 7.0 4.0 0.0 0.0 0.0 0.0 6.0 40.0 7.0 40.0 DAY 24 1 12 2 6 ** ** ** ** 22 17 1 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 0 4 1 0 5 DAYS WITH SNOW OR SLEET 1 2 2 0 0 0 0 0 0 0 0 0 5 DAYS WITH DUST 0 2 2 1 4 1 2 0 1 0 0 1 14 WIND DIRECTION (PREVAILING) 225 270 225 225 225 270 45 45 45 45 180 225 45 PREVAILING WIND SPEED(KNOTS) 11.4 11.9 13.9 9.1 12.0 9.6 7.1 6.8 6.8 7.1 15.0 13.2 6.5 PREVAILING WIND PERCENT 10.3 13.6 14.8 15.3 15.5 18.7 30.3 28.4 26.7 14.2 17.3 18.7 12.1 CALMS PERCENT OF WIND 61.3 53.6 46.5 49.3 43.2 44.0 46.5 49.0 57.3 61.9 52.7 54.2 51.6 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 237 233 236 243 244 262 44 42 49 343 203 233 242 VECTOR WIND MAGNITUDE(KNOTS) 2.3 3.4 2.8 1.7 3.2 2.2 2.7 2.8 2.3 0.8 4.1 3.1 1.2 WIND STEADINESES (MEAN %) 62.2 66.7 58.3 41.5 62.7 46.8 75.0 80.0 85.2 25.0 75.9 64.6 28.6 WIND SPEED (MEAN KNOTS) 3.7 5.1 4.8 4.1 5.1 4.7 3.6 3.5 2.7 3.2 5.4 4.8 4.2 FASTEST WIND DIRECTION 190 240 210 240 250 210 30 300 60 310 180 260 210 FASTEST WIND SPEED (KNOTS) 27 31 37 29 25 23 19 25 17 31 25 29 37 DAY 16 3 7 2 6 4 29 8 5 19 5 16 DAYS WITH SKY CLEAR (0-2)/8 14 18 16 14 20 29 23 28 26 20 11 20 239 DAYS WITH P.CLOUDY (3-6)/8 14 10 13 11 11 1 8 3 4 11 13 10 109 DAYS WITH CLOUDY (7-8)/8 3 0 2 5 0 0 0 0 0 0 6 1 17 DAYS WITH VISIBILITY =< 2 KM 2 0 0 0 0 0 0 0 0 0 1 0 3 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** 305.3 374.6 337.2 354.4 310.3 268.8 183.6 247.7 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 815.3 812.4 813.6 815.4 814.7 810.4 808.6 810.7 817.2 819.1 816.9 816.2 814.2 MAX. QFE PRESSURE IN HPA 823.1 819.0 819.8 821.2 819.8 815.4 812.8 815.2 824.8 824.7 823.6 820.9 824.8 DAY-HOUR 10- 6 20- 6 18- 6 5- 6 15- 3 9- 6 3- 6 22- 6 23- 6 10- 6 2- 6 28- 6 MIN. QFE PRESSURE IN HPA 804.3 805.0 805.0 809.0 808.8 805.2 804.6 805.6 809.4 814.5 809.4 805.0 804.3 DAY-HOUR 16-12 12- 3 12- 3 3-12 1-12 28-15 7-15 1-15 4-12 3-12 26- 3 4- 3 MEAN QNH PRESSURE IN HPA 1018.9 1015.4 1016.9 1019.0 1018.2 1013.0 1010.9 1013.4 1021.2 1023.5 1020.8 1019.9 1017.6 MAX. QNH PRESSURE IN HPA 1028.3 1023.3 1024.3 1026.0 1024.3 1019.0 1015.9 1018.8 1030.3 1030.2 1028.9 1025.6 1030.3 DAY-HOUR 10- 6 20- 6 18- 6 5- 6 15- 3 9- 6 3- 6 22- 6 23- 6 10- 6 2- 6 28- 6 MIN. QNH PRESSURE IN HPA 1005.7 1006.6 1006.6 1011.4 1011.1 1006.8 1006.1 1007.3 1011.8 1018.0 1011.8 1006.6 1005.7 DAY-HOUR 16-12 12- 3 12- 3 3-12 1-12 28-15 7-15 1-15 4-12 3-12 26- 3 4- 3 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 815.7 812.7 814.0 816.1 815.4 811.5 809.7 811.7 818.0 819.7 817.2 816.2 814.8 MAX. QFE PRESSURE IN HPA 822.7 817.7 818.6 820.1 819.8 815.1 812.7 814.8 824.1 823.9 822.2 820.2 824.1 DAY 10 20 18 29 15 9 3 23 23 10 2 8 MIN. QFE PRESSURE IN HPA 809.0 805.0 805.0 810.6 810.0 807.3 807.2 808.4 812.1 816.6 809.4 805.0 805.0 DAY 26 12 12 3 1 29 8 1 1 3 26 4 MEAN QNH PRESSURE IN HPA 1019.4 1015.8 1017.3 1019.9 1019.0 1014.3 1012.2 1014.6 1022.1 1024.2 1021.2 1020.0 1018.3 MAX. QNH PRESSURE IN HPA 1027.8 1021.8 1022.9 1024.7 1024.3 1018.7 1015.8 1018.3 1029.5 1029.2 1027.2 1024.8 1029.5 DAY 10 20 18 29 15 9 3 23 23 10 2 8 MIN. QNH PRESSURE IN HPA 1011.4 1006.6 1006.6 1013.3 1012.6 1009.3 1009.2 1010.6 1015.1 1020.5 1011.8 1006.6 1006.6 DAY 26 12 12 3 1 29 8 1 1 3 26 4 MEAN QFF PRESSURE IN HPA 1019.7 1015.8 1013.6 1011.6 1007.4 998.6 993.4 997.3 1011.4 1016.9 1016.2 1021.4 1010.3 MAX. QFF PRESSURE IN HPA 1033.0 1026.1 1022.5 1021.4 1013.5 1004.4 998.4 1003.3 1023.6 1024.2 1023.7 1033.5 1033.5 DAY 10 20 18 6 15 9 3 23 23 10 20 8 MIN. QFF PRESSURE IN HPA 1008.1 1001.8 1002.0 1004.4 1001.9 993.0 989.5 992.4 1000.1 1010.3 1008.5 1004.5 989.5 DAY 16 1 12 27 1 22 8 1 1 3 26 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 816.6 813.6 814.8 816.7 815.8 811.7 809.9 812.2 818.6 820.5 818.1 817.3 815.5 MAX. QFE PRESSURE IN HPA 823.1 819.0 819.8 821.2 819.6 815.4 812.8 815.2 824.8 824.7 823.6 820.9 824.8 DAY 10 20 18 5 15 9 3 22 23 10 2 28 MIN. QFE PRESSURE IN HPA 809.5 806.4 806.6 811.3 810.3 807.4 807.4 808.4 812.8 817.0 811.7 806.2 806.2 DAY 16 12 12 3 1 29 8 2 1 3 26 4 MEAN QNH PRESSURE IN HPA 1020.5 1016.9 1018.4 1020.5 1019.5 1014.6 1012.5 1015.2 1022.9 1025.1 1022.2 1021.3 1019.1 MAX. QNH PRESSURE IN HPA 1028.3 1023.3 1024.3 1026.0 1024.1 1019.0 1015.9 1018.8 1030.3 1030.2 1028.9 1025.6 1030.3 DAY 10 20 18 5 15 9 3 22 23 10 2 28 MIN. QNH PRESSURE IN HPA 1012.0 1008.2 1008.5 1014.1 1012.9 1009.4 1009.4 1010.6 1015.9 1020.9 1014.6 1008.0 1008.0 DAY 16 12 12 3 1 29 8 2 1 3 26 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 815.2 812.5 813.9 815.5 814.8 810.6 808.9 811.1 817.5 819.1 816.8 816.1 814.3 MAX. QFE PRESSURE IN HPA 821.8 818.1 818.7 820.6 818.8 814.9 811.7 814.6 824.0 823.4 822.3 819.8 824.0 DAY 10 20 18 5 15 9 3 23 23 10 2 28 MIN. QFE PRESSURE IN HPA 805.5 806.1 806.6 810.2 809.1 806.4 806.6 807.9 811.8 815.9 811.1 805.3 805.3 DAY 16 12 12 3 1 29 8 2 1 3 26 4 MEAN QNH PRESSURE IN HPA 1018.8 1015.5 1017.2 1019.2 1018.3 1013.3 1011.2 1013.9 1021.6 1023.5 1020.7 1019.9 1017.8 MAX. QNH PRESSURE IN HPA 1026.7 1022.3 1023.0 1025.3 1023.1 1018.4 1014.6 1018.1 1029.3 1028.6 1027.3 1024.3 1029.3 DAY 10 20 18 5 15 9 3 23 23 10 2 28 MIN. QNH PRESSURE IN HPA 1007.2 1007.9 1008.5 1012.8 1011.5 1008.2 1008.5 1010.0 1014.7 1019.6 1013.9 1006.9 1006.9 DAY 16 12 12 3 1 29 8 2 1 3 26 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 814.2 811.3 812.6 814.2 813.8 809.3 807.5 809.5 815.9 817.9 816.0 815.2 813.1 MAX. QFE PRESSURE IN HPA 820.4 816.7 817.2 819.8 817.8 813.4 810.5 813.0 822.8 821.8 820.9 818.7 822.8 DAY 9 20 18 5 15 8 13 22 23 10 2 28 MIN. QFE PRESSURE IN HPA 804.3 806.7 805.1 809.0 808.8 805.3 805.0 806.5 809.4 814.5 810.8 805.1 804.3 DAY 16 12 12 3 1 28 7 1 4 3 26 4 MEAN QNH PRESSURE IN HPA 1017.6 1014.1 1015.6 1017.6 1017.1 1011.7 1009.5 1011.9 1019.7 1022.1 1019.8 1018.8 1016.3 MAX. QNH PRESSURE IN HPA 1025.0 1020.6 1021.2 1024.3 1021.9 1016.6 1013.2 1016.2 1027.9 1026.7 1025.6 1023.0 1027.9 DAY 9 20 18 5 15 8 13 22 23 10 2 28 MIN. QNH PRESSURE IN HPA 1005.7 1008.6 1006.7 1011.4 1011.1 1006.9 1006.6 1008.4 1011.8 1018.0 1013.5 1006.7 1005.7 DAY 16 12 12 3 1 28 7 1 4 3 26 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 814.9 812.0 812.9 814.4 813.9 809.1 807.2 809.1 816.0 818.4 816.5 815.9 813.4 MAX. QFE PRESSURE IN HPA 821.4 817.1 817.6 820.1 817.5 813.0 810.4 812.5 822.8 822.0 821.6 819.4 822.8 DAY 9 20 31 5 14 9 13 22 23 10 2 30 MIN. QFE PRESSURE IN HPA 806.1 807.8 805.3 809.4 809.5 805.2 804.6 805.6 809.6 814.8 810.5 805.8 804.6 DAY 16 11 12 3 1 28 7 1 4 3 25 4 MEAN QNH PRESSURE IN HPA 1018.4 1015.0 1016.0 1017.9 1017.2 1011.5 1009.2 1011.5 1019.7 1022.6 1020.3 1019.7 1016.6 MAX. QNH PRESSURE IN HPA 1026.2 1021.1 1021.7 1024.7 1021.5 1016.2 1013.0 1015.6 1027.9 1026.9 1026.5 1023.8 1027.9 DAY 9 20 31 5 14 9 13 22 23 10 2 30 MIN. QNH PRESSURE IN HPA 1007.9 1009.9 1006.9 1011.8 1012.0 1006.8 1006.1 1007.3 1012.1 1018.3 1013.2 1007.5 1006.1 DAY 16 11 12 3 1 28 7 1 4 3 25 4 MEAN QFF PRESSURE IN HPA 1018.7 1014.9 1012.1 1009.5 1005.3 995.7 990.5 994.2 1008.9 1015.3 1015.3 1021.0 1008.4 MAX. QFF PRESSURE IN HPA 1029.4 1024.0 1019.9 1020.9 1009.8 1001.8 995.2 1000.4 1022.0 1021.9 1022.5 1031.1 1031.1 DAY 10 20 18 5 14 9 13 22 23 10 20 7 MIN. QFF PRESSURE IN HPA 1004.3 1007.6 1002.2 1003.3 1000.1 990.6 986.1 988.8 996.9 1007.9 1007.9 1003.7 986.1 DAY 16 12 7 30 31 22 7 1 4 2 25 3 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 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.0 6.1 9.7 15.0 19.5 25.5 30.5 28.7 23.9 16.4 11.4 0.8 16.1 MINIMUN AIR TEMPERATURE (C) -3.4 -1.2 1.5 6.7 10.5 14.6 18.5 15.7 12.1 5.1 0.3 -4.8 6.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 3 0 0 0 0 0 3 DAYS WITH MINIMUM TEMP. <=-4 21 7 1 0 0 0 0 0 0 0 4 18 51 DAYS WITH FREEZING MIN.<= 0 26 16 10 0 0 0 0 0 0 1 14 26 93 TEMPERATURE RECORDS LOWEST(C) -8.6 -6.2 -5.2 1.6 5.4 8.6 14.2 12.4 7.8 0.0 -10.6 -13.8 -13.8 DAY 23 26 1 1 11 1 2 11 23 16 29 15 MAXIMUM AIR TEMPERATURE (C) 11.9 11.0 14.7 20.2 24.5 30.9 36.3 34.4 30.0 22.5 17.3 5.5 21.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 21 31 31 18 0 0 0 101 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 3 3 TEMPERATURE RECORDS HIGHEST(C) 15.0 16.2 20.4 24.0 28.2 35.4 39.2 36.2 32.2 28.2 22.4 12.2 39.2 DAY 16 22 25 30 4 13 12 23 5 3 4 1 DIF. BETWEEN (MAX.-MIN.) (C) 15.3 12.2 13.2 13.5 14.0 16.3 17.8 18.7 17.9 17.4 17.0 10.3 15.3 MEAN DAILY TEMP. (MDT) (C) 4.2 4.9 8.1 13.5 17.5 22.7 27.4 25.1 21.1 13.8 8.8 0.4 14.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.0 69.3 198.0 126.7 22.6 0.0 0.0 0.0 416.6 HEATING DEG. DAYS(BASE 18 0C) 427.4 365.6 305.9 136.1 29.4 2.8 0.0 0.0 1.2 135.4 275.4 546.8 2226.0 DEWPOINT (MEAN C) -8.0 -7.1 -7.1 -2.5 3.3 3.5 2.9 0.8 0.3 -2.6 -6.8 -4.2 -2.3 MIXING RATIO (G/KG) 2.80 2.96 3.14 4.24 6.26 6.18 5.92 5.08 4.91 4.03 3.00 3.55 4.34 VAPOUR PRESSURE (HPA) 3.65 3.84 4.08 5.51 8.12 7.98 7.62 6.59 6.38 5.27 3.92 4.63 5.63 SATURATION DEF. (HPA) 6.23 5.94 8.52 12.25 15.43 26.24 38.08 34.80 25.04 15.00 10.80 2.20 16.71 RELATIVE HUMIDITY (MEAN %) 43 44 37 35 39 27 19 18 23 32 30 72 35 RELATIVE HUMIDITY (MAX. %) 71 72 63 59 60 49 34 31 37 52 50 85 55 RELATIVE HUMIDITY (MIN. %) 22 26 21 21 27 17 12 12 16 21 19 59 23 RELATIVE HUMIDITY (MEAN% 03UTC) 67 71 62 57 59 48 34 31 37 52 48 82 54 RELATIVE HUMIDITY (MEAN% 09UTC) 31 33 27 28 30 22 15 14 18 25 22 65 28 RELATIVE HUMIDITY (MEAN% 15UTC) 36 36 29 28 36 20 14 14 19 26 25 74 30 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 2.4 40.9 17.8 20.4 30.0 23.6 0.0 0.0 0.0 7.0 0.0 39.0 181.1 DAYS WITH PRECIPITATION >=10 0 1 1 0 1 1 0 0 0 0 0 2 6 DAYS WITH PRECIPITATION >= 5 0 2 1 1 3 1 0 0 0 1 0 3 12 DAYS WITH PRECIPITATION >= 1 1 3 2 4 7 1 0 0 0 2 0 3 23 DAYS WITH PRECIPITATION 3 5 6 7 8 4 0 0 0 2 0 6 41 GREATEST DAILY PRECIPITATION 2.0 28.0 15.0 8.0 11.0 22.0 0.0 0.0 0.0 5.0 0.0 15.0 28.0 DAY 13 6 14 13 29 1 ** ** ** 22 ** 12 DAY WITH THUNDER STORM 0 0 0 2 6 0 0 0 0 1 0 0 9 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 0 2 3 DAYS WITH DUST 0 0 0 3 2 0 0 0 1 0 0 0 6 WIND DIRECTION (PREVAILING) 225 225 270 225 225 225 45 45 270 45 225 45 225 PREVAILING WIND SPEED(KNOTS) 13.4 13.8 12.8 13.6 13.9 12.3 8.1 7.2 13.3 8.9 15.0 6.6 13.5 PREVAILING WIND PERCENT 10.3 8.6 14.2 16.7 12.9 12.0 11.6 23.9 13.3 13.5 12.7 4.5 9.2 CALMS PERCENT OF WIND 69.0 57.9 54.2 45.3 49.7 56.0 54.2 54.2 50.7 58.7 61.3 89.7 58.5 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 237 235 258 244 245 260 270 45 284 287 249 356 256 VECTOR WIND MAGNITUDE(KNOTS) 2.7 1.6 2.5 3.7 2.9 1.4 0.1 2.7 1.9 0.3 3.0 0.4 1.4 WIND STEADINESES (MEAN %) 73.0 41.0 51.0 60.7 50.9 33.3 2.1 73.0 38.8 7.3 65.2 50.0 32.6 WIND SPEED (MEAN KNOTS) 3.7 3.9 4.9 6.1 5.7 4.2 4.7 3.7 4.9 4.1 4.6 0.8 4.3 FASTEST WIND DIRECTION 250 210 260 250 240 180 190 150 240 270 230 240 230 FASTEST WIND SPEED (KNOTS) 29 29 29 27 35 35 29 19 29 23 39 16 39 DAY 18 8 25 19 8 3 6 23 20 9 11 4 DAYS WITH SKY CLEAR (0-2)/8 21 13 15 7 13 27 30 30 28 28 24 12 248 DAYS WITH P.CLOUDY (3-6)/8 7 11 11 14 15 3 1 1 2 2 6 11 84 DAYS WITH CLOUDY (7-8)/8 3 4 5 9 3 0 0 0 0 1 0 8 33 DAYS WITH VISIBILITY =< 2 KM 0 0 0 0 0 0 0 0 0 0 0 7 7 DURATION OF SUNSHINE HOURS 250.5 218.5 248.7 187.7 ****** 205.0 380.2 369.4 320.5 ****** 267.3 162.3 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 816.6 813.8 814.0 814.1 816.0 812.2 809.0 812.6 814.8 817.6 817.2 816.6 814.5 MAX. QFE PRESSURE IN HPA 823.5 819.5 821.2 819.0 820.3 817.6 813.7 817.1 820.9 824.7 823.5 820.4 824.7 DAY-HOUR 7- 6 1- 6 3- 6 13- 6 26-15 1- 6 4- 6 25- 6 13- 6 27- 6 16- 6 20- 6 MIN. QFE PRESSURE IN HPA 811.7 804.7 808.8 807.7 810.5 807.5 804.4 808.5 810.7 812.5 810.6 810.6 804.4 DAY-HOUR 11-12 23-12 26-12 24-15 10-12 22-12 16-15 22-15 5-12 14-12 25-15 4-12 MEAN QNH PRESSURE IN HPA 1020.4 1017.1 1017.3 1017.4 1019.7 1015.2 1011.3 1015.7 1018.3 1021.7 1021.2 1020.4 1018.0 MAX. QNH PRESSURE IN HPA 1028.7 1023.9 1026.0 1023.3 1024.9 1021.7 1017.0 1021.1 1025.6 1030.2 1028.7 1025.0 1030.2 DAY-HOUR 7- 6 1- 6 3- 6 13- 6 26-15 1- 6 4- 6 25- 6 13- 6 27- 6 16- 6 20- 6 MIN. QNH PRESSURE IN HPA 1014.6 1006.2 1011.1 1009.8 1013.2 1009.6 1005.8 1010.8 1013.4 1015.6 1013.3 1013.3 1005.8 DAY-HOUR 11-12 23-12 26-12 24-15 10-12 22-12 16-15 22-15 5-12 14-12 25-15 4-12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 816.8 814.1 814.2 814.6 816.5 813.2 809.8 813.3 815.6 818.3 817.8 816.8 815.1 MAX. QFE PRESSURE IN HPA 822.0 818.6 820.0 817.8 820.3 817.4 813.1 816.2 820.2 823.9 822.7 819.6 823.9 DAY 7 1 3 4 27 2 4 25 13 27 16 20 MIN. QFE PRESSURE IN HPA 812.4 808.8 808.9 810.2 812.7 809.9 806.2 810.9 813.0 813.8 812.2 812.3 806.2 DAY 1 5 27 24 11 22 17 23 5 13 26 4 MEAN QNH PRESSURE IN HPA 1020.7 1017.5 1017.6 1018.1 1020.4 1016.4 1012.3 1016.6 1019.3 1022.5 1021.9 1020.8 1018.7 MAX. QNH PRESSURE IN HPA 1026.9 1022.9 1024.5 1021.9 1024.9 1021.4 1016.3 1020.0 1024.8 1029.2 1027.8 1024.1 1029.2 DAY 7 1 3 4 27 2 4 25 13 27 16 20 MIN. QNH PRESSURE IN HPA 1015.4 1011.1 1011.2 1012.8 1015.8 1012.4 1008.0 1013.6 1016.2 1017.1 1015.2 1015.3 1008.0 DAY 1 5 27 24 11 22 17 23 5 13 26 4 MEAN QFF PRESSURE IN HPA 1020.7 1016.6 1014.3 1010.4 1009.3 1001.2 994.1 1000.1 1006.2 1015.0 1018.4 1024.3 1010.9 MAX. QFF PRESSURE IN HPA 1027.8 1023.5 1024.1 1017.3 1016.0 1013.6 999.2 1003.9 1011.4 1024.9 1028.0 1032.5 1032.5 DAY 7 2 3 13 27 1 29 11 22 27 28 15 MIN. QFF PRESSURE IN HPA 1011.1 1005.4 1003.4 1006.0 1004.6 993.3 989.0 996.3 1001.7 1004.1 1009.7 1013.2 989.0 DAY 17 5 26 20 9 22 17 8 1 13 11 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 817.8 815.0 815.2 815.3 817.0 813.5 810.1 813.9 816.3 819.2 818.7 817.7 815.8 MAX. QFE PRESSURE IN HPA 823.5 819.5 821.2 819.0 820.3 817.6 813.7 817.1 820.9 824.7 823.5 820.4 824.7 DAY 7 1 3 13 27 1 4 25 13 27 16 20 MIN. QFE PRESSURE IN HPA 813.3 809.8 811.2 810.3 813.4 810.1 806.8 811.3 813.7 814.3 813.0 812.7 806.8 DAY 22 23 27 24 11 22 17 8 5 13 26 4 MEAN QNH PRESSURE IN HPA 1021.9 1018.6 1018.8 1018.9 1020.9 1016.7 1012.7 1017.2 1020.1 1023.6 1022.9 1021.8 1019.5 MAX. QNH PRESSURE IN HPA 1028.7 1023.9 1026.0 1023.3 1024.9 1021.7 1017.0 1021.1 1025.6 1030.2 1028.7 1025.0 1030.2 DAY 7 1 3 13 27 1 4 25 13 27 16 20 MIN. QNH PRESSURE IN HPA 1016.5 1012.3 1014.0 1012.9 1016.6 1012.7 1008.7 1014.1 1017.0 1017.7 1016.2 1015.8 1008.7 DAY 22 23 27 24 11 22 17 8 5 13 26 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 816.7 814.0 814.3 814.3 816.0 812.5 809.2 813.1 815.1 817.8 817.1 816.6 814.7 MAX. QFE PRESSURE IN HPA 822.5 818.4 820.1 818.0 819.0 817.2 812.4 816.3 819.7 823.1 821.8 819.5 823.1 DAY 7 1 3 13 3 1 4 25 13 27 16 20 MIN. QFE PRESSURE IN HPA 812.9 807.1 810.2 809.3 812.6 809.0 806.3 810.6 812.4 813.5 811.6 810.9 806.3 DAY 22 23 17 24 10 22 2 8 5 13 26 4 MEAN QNH PRESSURE IN HPA 1020.5 1017.3 1017.7 1017.7 1019.8 1015.5 1011.6 1016.2 1018.6 1021.9 1021.1 1020.5 1018.2 MAX. QNH PRESSURE IN HPA 1027.5 1022.6 1024.7 1022.1 1023.3 1021.2 1015.4 1020.1 1024.2 1028.3 1026.7 1023.9 1028.3 DAY 7 1 3 13 3 1 4 25 13 27 16 20 MIN. QNH PRESSURE IN HPA 1016.0 1009.1 1012.8 1011.7 1015.7 1011.4 1008.1 1013.3 1015.4 1016.8 1014.5 1013.6 1008.1 DAY 22 23 17 24 10 22 2 8 5 13 26 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 815.5 812.7 813.0 813.0 815.0 811.1 808.0 811.7 813.5 816.4 816.0 815.5 813.4 MAX. QFE PRESSURE IN HPA 821.4 817.8 819.1 817.0 819.8 815.7 811.1 814.7 818.1 821.6 820.1 818.2 821.6 DAY 7 1 3 12 26 2 28 25 13 26 15 20 MIN. QFE PRESSURE IN HPA 811.7 804.7 808.8 807.9 810.5 807.5 804.9 808.9 810.7 812.5 810.8 810.6 804.7 DAY 11 23 26 24 10 22 10 22 5 14 25 4 MEAN QNH PRESSURE IN HPA 1019.1 1015.8 1016.2 1016.2 1018.6 1013.9 1010.2 1014.5 1016.8 1020.2 1019.7 1019.2 1016.7 MAX. QNH PRESSURE IN HPA 1026.2 1021.9 1023.5 1020.9 1024.3 1019.4 1013.9 1018.2 1022.3 1026.5 1024.7 1022.4 1026.5 DAY 7 1 3 12 26 2 28 25 13 26 15 20 MIN. QNH PRESSURE IN HPA 1014.6 1006.2 1011.1 1010.0 1013.2 1009.6 1006.4 1011.2 1013.4 1015.6 1013.5 1013.3 1006.2 DAY 11 23 26 24 10 22 10 22 5 14 25 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 816.3 813.2 813.3 813.1 815.3 810.8 807.7 811.3 813.7 816.6 816.6 816.2 813.7 MAX. QFE PRESSURE IN HPA 821.8 818.3 819.1 817.3 820.3 816.4 811.1 814.4 817.7 822.2 820.7 818.8 822.2 DAY 7 1 3 12 26 1 28 25 12 26 15 30 MIN. QFE PRESSURE IN HPA 812.2 808.1 808.8 807.7 810.5 807.5 804.4 808.5 810.8 812.6 810.6 811.8 804.4 DAY 25 23 26 24 10 22 16 22 4 15 25 4 MEAN QNH PRESSURE IN HPA 1020.0 1016.4 1016.5 1016.3 1018.9 1013.6 1009.8 1014.1 1017.0 1020.5 1020.5 1020.0 1017.0 MAX. QNH PRESSURE IN HPA 1026.7 1022.5 1023.5 1021.3 1024.9 1020.2 1013.9 1017.8 1021.8 1027.2 1025.4 1023.1 1027.2 DAY 7 1 3 12 26 1 28 25 12 26 15 30 MIN. QNH PRESSURE IN HPA 1015.2 1010.3 1011.1 1009.8 1013.2 1009.6 1005.8 1010.8 1013.5 1015.7 1013.3 1014.7 1005.8 DAY 25 23 26 24 10 22 16 22 4 15 25 4 MEAN QFF PRESSURE IN HPA 1020.0 1015.5 1013.1 1008.5 1007.9 998.2 991.5 997.6 1003.8 1013.0 1017.0 1023.5 1009.1 MAX. QFF PRESSURE IN HPA 1028.1 1021.3 1023.2 1015.3 1015.6 1010.5 996.8 1001.5 1008.6 1022.2 1026.1 1033.1 1033.1 DAY 7 1 3 12 26 1 28 11 22 26 27 14 MIN. QFF PRESSURE IN HPA 1011.0 1008.2 1004.1 1003.3 1002.7 991.7 986.6 993.7 999.7 1004.7 1008.0 1012.6 986.6 DAY 11 23 26 24 9 22 16 22 5 13 25 4 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -1.3 7.3 8.8 15.9 21.6 27.2 27.1 27.3 24.9 17.1 9.3 7.2 16.1 MINIMUN AIR TEMPERATURE (C) -7.7 1.1 2.7 7.8 11.9 16.0 17.3 16.1 12.3 5.6 0.9 -1.6 6.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 1 1 0 0 0 0 4 DAYS WITH MINIMUM TEMP. <=-4 22 1 0 0 0 0 0 0 0 0 0 8 31 DAYS WITH FREEZING MIN.<= 0 28 13 7 1 0 0 0 0 0 1 13 21 84 TEMPERATURE RECORDS LOWEST(C) -20.0 -4.2 -1.6 0.0 8.0 8.4 13.4 11.8 7.0 0.0 -3.8 -7.2 -20.0 DAY 15 14 29 6 3 7 21 5 21 21 19 4 MAXIMUM AIR TEMPERATURE (C) 3.9 11.9 13.3 20.8 26.8 32.5 31.8 32.9 31.4 23.0 14.7 13.1 21.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 6 27 29 29 21 0 0 0 112 DAYS WITH MAXIMUM TEMP. <= 0 8 0 0 0 0 0 0 0 0 0 0 0 8 TEMPERATURE RECORDS HIGHEST(C) 11.4 19.2 20.4 29.0 33.8 35.2 34.0 35.0 35.0 28.4 21.0 17.8 35.2 DAY 5 10 30 26 31 4 3 8 10 1 3 29 DIF. BETWEEN (MAX.-MIN.) (C) 11.6 10.8 10.6 13.0 14.9 16.5 14.5 16.8 19.1 17.4 13.8 14.7 14.4 MEAN DAILY TEMP. (MDT) (C) -1.9 6.5 8.0 14.3 19.3 24.2 24.6 24.5 21.9 14.3 7.8 5.7 14.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 13.8 93.4 110.1 107.6 39.1 0.0 0.0 0.0 364.1 HEATING DEG. DAYS(BASE 18 0C) 616.7 333.9 309.5 109.5 14.2 0.0 0.0 0.0 0.0 115.3 305.8 380.0 2184.9 DEWPOINT (MEAN C) -5.8 -1.4 -0.0 1.6 6.7 6.3 7.5 6.6 3.8 0.7 -1.6 -2.8 1.8 MIXING RATIO (G/KG) 3.23 4.40 4.89 5.54 7.82 7.57 8.16 7.65 6.35 5.19 4.31 3.92 5.75 VAPOUR PRESSURE (HPA) 4.21 5.70 6.32 7.19 10.12 9.75 10.52 9.88 8.22 6.76 5.63 5.13 7.45 SATURATION DEF. (HPA) 1.89 4.96 5.43 11.67 16.89 27.74 26.57 28.11 25.36 14.10 6.85 5.64 14.60 RELATIVE HUMIDITY (MEAN %) 73 58 57 41 41 28 30 28 27 35 50 52 43 RELATIVE HUMIDITY (MAX. %) 87 80 77 61 62 42 42 41 41 53 66 75 61 RELATIVE HUMIDITY (MIN. %) 58 41 44 30 30 21 24 22 20 26 39 37 33 RELATIVE HUMIDITY (MEAN% 03UTC) 85 79 75 59 61 42 43 41 41 52 65 73 60 RELATIVE HUMIDITY (MEAN% 09UTC) 65 49 49 34 35 24 26 24 23 29 43 43 37 RELATIVE HUMIDITY (MEAN% 15UTC) 76 54 53 36 36 23 26 23 23 31 48 47 40 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 32.9 13.8 38.2 10.8 14.8 0.0 0.0 0.0 0.0 0.2 4.3 13.7 128.7 DAYS WITH PRECIPITATION >=10 0 0 2 0 0 0 0 0 0 0 0 1 3 DAYS WITH PRECIPITATION >= 5 4 1 2 1 2 0 0 0 0 0 0 1 11 DAYS WITH PRECIPITATION >= 1 7 5 5 3 4 0 0 0 0 0 1 2 27 DAYS WITH PRECIPITATION 9 8 10 4 7 0 0 0 0 1 2 3 44 GREATEST DAILY PRECIPITATION 8.0 5.0 15.0 6.0 5.0 0.0 0.0 0.0 0.0 0.2 4.0 12.0 15.0 DAY 6 21 7 15 12 ** ** ** ** 10 28 23 DAY WITH THUNDER STORM 0 0 0 1 1 0 0 0 0 0 0 0 2 DAYS WITH SNOW OR SLEET 7 1 0 0 0 0 0 0 0 0 0 1 9 DAYS WITH DUST 0 0 1 0 1 0 0 0 5 0 0 0 7 WIND DIRECTION (PREVAILING) 225 270 225 225 270 45 45 45 45 45 45 45 45 PREVAILING WIND SPEED(KNOTS) 13.9 14.0 14.5 18.8 14.2 9.8 12.1 10.4 10.2 8.6 9.4 7.3 10.2 PREVAILING WIND PERCENT 5.2 15.2 18.1 20.1 14.8 16.7 36.1 25.2 11.3 15.5 15.3 11.0 13.2 CALMS PERCENT OF WIND 80.6 51.0 37.4 42.3 54.2 48.7 42.6 47.1 58.0 51.0 70.0 67.1 54.2 NO. OF WIND OBSERVATION 155 145 155 149 155 150 155 155 150 155 150 155 1829 VECTOR WIND DIRECTION (MEAN) 243 235 220 238 274 285 41 30 295 260 20 266 270 VECTOR WIND MAGNITUDE(KNOTS) 0.5 4.2 4.1 4.9 3.5 1.3 4.9 3.3 0.5 2.0 1.5 0.9 1.1 WIND STEADINESES (MEAN %) 23.8 63.6 47.7 54.4 61.4 20.6 71.0 61.1 10.2 32.8 53.6 30.0 19.6 WIND SPEED (MEAN KNOTS) 2.1 6.6 8.6 9.0 5.7 6.3 6.9 5.4 4.9 6.1 2.8 3.0 5.6 FASTEST WIND DIRECTION 210 230 180 200 300 240 130 50 270 250 250 260 180 FASTEST WIND SPEED (KNOTS) 23 29 39 35 29 29 29 23 31 33 23 23 39 DAY 5 5 2 3 22 5 10 10 22 15 8 11 DAYS WITH SKY CLEAR (0-2)/8 13 10 9 16 15 26 26 26 30 30 16 19 236 DAYS WITH P.CLOUDY (3-6)/8 12 17 16 10 14 4 5 5 0 1 11 12 107 DAYS WITH CLOUDY (7-8)/8 6 2 6 4 2 0 0 0 0 0 3 0 23 DAYS WITH VISIBILITY =< 2 KM 6 1 0 0 0 0 0 0 1 0 0 0 8 DURATION OF SUNSHINE HOURS ****** ****** ****** 262.0 308.6 364.9 336.0 341.3 318.5 305.5 208.2 237.7 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 815.4 812.3 811.3 814.5 815.3 812.2 813.2 813.5 814.3 817.5 818.9 818.1 814.7 MAX. QFE PRESSURE IN HPA 822.4 819.7 817.4 819.4 820.0 817.3 818.7 819.4 821.9 824.1 827.1 823.3 827.1 DAY-HOUR 26- 6 8- 6 29- 6 8- 6 17- 6 3- 6 3- 6 30- 6 25- 6 2- 6 18- 6 4- 6 MIN. QFE PRESSURE IN HPA 807.6 717.4 801.3 808.4 811.0 806.6 807.8 804.4 806.9 811.0 813.9 813.6 717.4 DAY-HOUR 12-12 9- 6 15- 3 3- 9 29-15 19-15 6-12 8- 9 20-12 5-12 29-12 15- 3 MEAN QNH PRESSURE IN HPA 1019.1 1015.3 1014.1 1017.9 1018.9 1015.2 1016.3 1016.7 1017.7 1021.6 1023.2 1022.3 1018.2 MAX. QNH PRESSURE IN HPA 1027.4 1024.2 1021.4 1023.8 1024.5 1021.3 1023.0 1023.8 1026.8 1029.5 1033.0 1028.5 1033.0 DAY-HOUR 26- 6 8- 6 29- 6 8- 6 17- 6 3- 6 3- 6 30- 6 25- 6 2- 6 18- 6 4- 6 MIN. QNH PRESSURE IN HPA 1009.7 901.4 1002.1 1010.6 1013.8 1008.5 1009.9 1005.8 1008.8 1013.8 1017.2 1016.9 901.4 DAY-HOUR 12-12 9- 6 15- 3 3- 9 29-15 19-15 6-12 8- 9 20-12 5-12 29-12 15- 3 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 815.4 813.0 811.3 815.0 816.0 813.2 813.9 814.4 815.1 818.2 819.3 818.3 815.2 MAX. QFE PRESSURE IN HPA 821.0 818.2 816.9 818.9 819.1 816.9 818.4 819.3 820.4 823.3 826.1 822.5 826.1 DAY 26 8 29 8 17 3 4 30 26 2 19 4 MIN. QFE PRESSURE IN HPA 808.9 802.2 801.3 810.6 813.3 809.3 809.2 810.4 810.2 812.7 814.7 813.6 801.3 DAY 12 5 15 10 30 19 7 8 20 6 29 15 MEAN QNH PRESSURE IN HPA 1019.0 1016.1 1014.1 1018.5 1019.8 1016.3 1017.3 1017.8 1018.7 1022.4 1023.6 1022.5 1018.8 MAX. QNH PRESSURE IN HPA 1025.7 1022.4 1020.8 1023.2 1023.5 1020.8 1022.6 1023.7 1025.0 1028.5 1031.8 1027.5 1031.8 DAY 26 8 29 8 17 3 4 30 26 2 19 4 MIN. QNH PRESSURE IN HPA 1011.2 1003.2 1002.1 1013.3 1016.5 1011.7 1011.6 1013.0 1012.8 1015.8 1018.2 1016.9 1002.1 DAY 12 5 15 10 30 19 7 8 20 6 29 15 MEAN QFF PRESSURE IN HPA 1024.6 1013.9 1010.5 1010.1 1007.3 999.9 1000.8 1001.8 1005.1 1014.4 1021.1 1021.6 1010.9 MAX. QFF PRESSURE IN HPA 1035.8 1023.9 1020.2 1016.4 1012.2 1005.1 1004.5 1008.5 1013.1 1022.9 1033.4 1030.5 1035.8 DAY 15 24 29 6 7 3 4 31 26 20 19 4 MIN. QFF PRESSURE IN HPA 1011.4 1000.9 999.6 1002.2 1001.2 995.7 994.4 996.3 999.2 1006.5 1014.7 1013.0 994.4 DAY 6 5 15 10 29 20 12 9 22 5 28 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 816.6 810.7 812.5 815.5 816.4 813.6 814.3 814.9 815.8 819.0 820.2 819.4 815.7 MAX. QFE PRESSURE IN HPA 822.4 819.7 817.4 819.4 820.0 817.3 818.7 819.4 821.9 824.1 827.1 823.3 827.1 DAY 26 8 29 8 17 3 3 30 25 2 18 4 MIN. QFE PRESSURE IN HPA 809.4 717.4 807.5 810.0 813.0 809.7 809.5 810.7 810.5 813.8 815.6 814.8 717.4 DAY 12 9 13 3 29 19 7 8 20 5 28 15 MEAN QNH PRESSURE IN HPA 1020.4 1013.4 1015.5 1019.2 1020.2 1016.8 1017.7 1018.4 1019.6 1023.3 1024.8 1023.9 1019.4 MAX. QNH PRESSURE IN HPA 1027.4 1024.2 1021.4 1023.8 1024.5 1021.3 1023.0 1023.8 1026.8 1029.5 1033.0 1028.5 1033.0 DAY 26 8 29 8 17 3 3 30 25 2 18 4 MIN. QNH PRESSURE IN HPA 1011.8 901.4 1009.6 1012.6 1016.2 1012.2 1012.0 1013.4 1013.2 1017.1 1019.3 1018.3 901.4 DAY 12 9 13 3 29 19 7 8 20 5 28 15 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 815.6 813.4 811.6 814.7 815.6 812.6 813.5 813.7 814.7 817.6 819.0 818.2 815.0 MAX. QFE PRESSURE IN HPA 821.3 819.2 816.4 818.6 819.5 816.5 818.2 818.1 821.0 822.7 825.8 822.1 825.8 DAY 26 8 29 8 17 3 3 30 25 2 18 28 MIN. QFE PRESSURE IN HPA 808.1 804.3 807.1 808.4 812.2 808.5 808.6 804.4 809.0 812.3 814.1 814.8 804.3 DAY 12 5 13 3 29 19 7 8 20 5 28 15 MEAN QNH PRESSURE IN HPA 1019.3 1016.6 1014.5 1018.2 1019.3 1015.6 1016.7 1017.0 1018.2 1021.7 1023.3 1022.4 1018.6 MAX. QNH PRESSURE IN HPA 1026.1 1023.6 1020.2 1022.9 1023.9 1020.3 1022.4 1022.3 1025.7 1027.8 1031.5 1027.1 1031.5 DAY 26 8 29 8 17 3 3 30 25 2 18 28 MIN. QNH PRESSURE IN HPA 1010.3 1005.7 1009.1 1010.6 1015.2 1010.8 1010.9 1005.8 1011.4 1015.3 1017.5 1018.3 1005.7 DAY 12 5 13 3 29 19 7 8 20 5 28 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 814.6 812.0 810.2 813.5 814.3 811.1 812.2 812.3 813.0 816.3 817.8 817.1 813.7 MAX. QFE PRESSURE IN HPA 820.1 818.4 815.1 817.6 818.2 814.7 817.9 816.2 819.1 821.3 824.8 821.1 824.8 DAY 26 8 29 8 17 3 3 31 25 2 18 28 MIN. QFE PRESSURE IN HPA 807.6 804.9 804.4 808.9 811.2 806.9 807.8 808.2 806.9 811.0 813.9 813.8 804.4 DAY 12 5 4 3 29 19 6 8 20 5 29 15 MEAN QNH PRESSURE IN HPA 1018.1 1015.0 1012.8 1016.7 1017.7 1013.9 1015.3 1015.3 1016.2 1020.1 1021.9 1021.1 1017.0 MAX. QNH PRESSURE IN HPA 1024.7 1022.6 1018.7 1021.7 1022.4 1018.2 1022.0 1020.0 1023.5 1026.1 1030.3 1025.9 1030.3 DAY 26 8 29 8 17 3 3 31 25 2 18 28 MIN. QNH PRESSURE IN HPA 1009.7 1006.4 1005.8 1011.2 1014.0 1008.8 1009.9 1010.4 1008.8 1013.8 1017.2 1017.1 1005.8 DAY 12 5 4 3 29 19 6 8 20 5 29 15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 815.0 812.5 810.8 813.7 814.2 810.8 811.9 812.1 812.9 816.6 818.2 817.6 813.9 MAX. QFE PRESSURE IN HPA 820.1 819.0 814.9 818.1 817.8 814.4 817.0 816.3 819.2 821.3 825.2 821.4 825.2 DAY 26 8 29 8 7 3 3 30 25 2 18 28 MIN. QFE PRESSURE IN HPA 807.6 807.2 807.1 810.3 811.0 806.6 808.5 807.8 807.7 811.3 814.1 814.4 806.6 DAY 12 5 12 10 29 19 6 8 20 5 28 15 MEAN QNH PRESSURE IN HPA 1018.6 1015.5 1013.5 1017.0 1017.6 1013.6 1014.9 1015.1 1016.1 1020.5 1022.4 1021.7 1017.2 MAX. QNH PRESSURE IN HPA 1024.7 1023.3 1018.4 1022.3 1021.9 1017.8 1020.9 1020.1 1023.6 1026.1 1030.8 1026.2 1030.8 DAY 26 8 29 8 7 3 3 30 25 2 18 28 MIN. QNH PRESSURE IN HPA 1009.7 1009.2 1009.1 1012.9 1013.8 1008.5 1010.8 1009.9 1009.8 1014.1 1017.5 1017.8 1008.5 DAY 12 5 12 10 29 19 6 8 20 5 28 15 MEAN QFF PRESSURE IN HPA 1023.9 1013.2 1009.6 1008.5 1004.9 996.9 998.1 998.9 1002.1 1012.5 1019.7 1020.6 1009.1 MAX. QFF PRESSURE IN HPA 1034.5 1021.1 1016.1 1014.8 1011.9 1002.1 1002.5 1005.4 1010.6 1021.0 1031.5 1028.5 1034.5 DAY 14 23 28 8 7 7 3 31 25 19 18 3 MIN. QFF PRESSURE IN HPA 1011.0 1003.5 1004.8 1002.4 998.6 991.3 992.8 992.7 996.4 1004.2 1013.5 1013.2 991.3 DAY 6 10 12 10 28 19 12 8 20 5 1 22 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 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.5 5.4 8.0 14.2 20.4 26.2 31.5 29.1 24.1 18.7 9.3 4.6 16.3 MINIMUN AIR TEMPERATURE (C) -2.6 -3.3 0.7 6.3 11.3 15.9 20.5 16.3 12.0 8.6 2.0 -2.3 7.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 1 12 0 0 0 0 0 13 DAYS WITH MINIMUM TEMP. <=-4 14 14 2 0 0 0 0 0 0 0 0 10 40 DAYS WITH FREEZING MIN.<= 0 23 23 13 2 0 0 0 0 0 0 10 24 95 TEMPERATURE RECORDS LOWEST(C) -8.6 -13.2 -6.6 -1.4 4.0 11.4 16.0 9.4 7.2 2.2 -2.8 -11.6 -13.2 DAY 20 8 1 12 6 5 1 30 10 28 21 22 MAXIMUM AIR TEMPERATURE (C) 9.4 11.2 13.1 19.2 25.3 31.4 37.2 34.9 30.1 24.3 14.2 9.9 21.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 26 31 31 15 0 0 0 105 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 14.2 20.4 18.8 26.4 30.8 35.2 39.6 38.0 34.4 29.4 20.2 15.4 39.6 DAY 11 21 3 27 31 15 18 15 1 3 2 8 DIF. BETWEEN (MAX.-MIN.) (C) 12.0 14.5 12.4 12.9 14.0 15.5 16.7 18.6 18.1 15.7 12.2 12.2 14.6 MEAN DAILY TEMP. (MDT) (C) 3.4 4.0 6.9 12.7 18.3 23.7 28.8 25.6 21.1 16.4 8.1 3.8 14.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 3.3 80.0 243.0 143.1 22.8 2.7 0.0 0.0 494.9 HEATING DEG. DAYS(BASE 18 0C) 452.0 392.7 343.7 159.8 29.7 0.0 0.0 0.0 0.5 68.4 297.6 440.7 2185.1 DEWPOINT (MEAN C) -5.0 -8.6 -3.7 -0.3 1.0 4.4 7.5 1.2 1.9 1.6 0.2 -3.2 -0.2 MIXING RATIO (G/KG) 3.30 2.65 3.80 4.96 5.19 6.75 8.44 5.32 5.54 5.43 4.82 3.77 5.00 VAPOUR PRESSURE (HPA) 4.29 3.46 4.92 6.43 6.75 8.72 10.82 6.88 7.20 7.08 6.28 4.91 6.48 SATURATION DEF. (HPA) 4.58 6.27 6.31 10.60 18.33 26.60 37.39 35.67 24.53 15.76 6.02 4.00 16.34 RELATIVE HUMIDITY (MEAN %) 54 39 48 43 31 28 24 18 25 34 56 61 38 RELATIVE HUMIDITY (MAX. %) 73 57 71 68 53 45 36 31 40 51 78 81 57 RELATIVE HUMIDITY (MIN. %) 39 26 33 29 20 19 18 13 18 24 41 44 27 RELATIVE HUMIDITY (MEAN% 03UTC) 72 55 69 66 52 45 36 31 40 51 77 78 56 RELATIVE HUMIDITY (MEAN% 09UTC) 46 32 41 33 23 22 20 14 20 27 47 50 31 RELATIVE HUMIDITY (MEAN% 15UTC) 49 33 41 38 25 23 20 14 21 30 52 59 34 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 20.8 0.0 21.8 34.9 11.1 6.4 0.0 0.0 0.0 1.1 10.4 24.5 131.0 DAYS WITH PRECIPITATION >=10 1 0 0 1 0 0 0 0 0 0 0 1 3 DAYS WITH PRECIPITATION >= 5 1 0 2 3 1 0 0 0 0 0 0 1 8 DAYS WITH PRECIPITATION >= 1 2 0 5 5 3 3 0 0 0 0 3 5 26 DAYS WITH PRECIPITATION 5 0 9 9 3 5 0 0 0 2 7 5 45 GREATEST DAILY PRECIPITATION 18.0 0.0 9.0 17.0 9.0 4.0 0.0 0.0 0.0 0.6 4.0 10.0 18.0 DAY 17 ** 29 7 20 24 ** ** ** 24 28 21 DAY WITH THUNDER STORM 0 0 0 0 1 2 0 0 0 0 0 0 3 DAYS WITH SNOW OR SLEET 3 0 2 0 0 0 0 0 0 0 0 2 7 DAYS WITH DUST 0 0 0 1 0 1 0 0 1 0 0 0 3 WIND DIRECTION (PREVAILING) 270 225 225 225 270 270 45 45 45 270 45 225 225 PREVAILING WIND SPEED(KNOTS) 13.0 18.3 18.5 19.4 16.8 16.0 10.1 10.8 10.7 15.6 7.6 12.8 16.7 PREVAILING WIND PERCENT 15.5 26.4 25.8 18.7 13.5 13.3 15.5 29.0 16.7 12.3 12.7 11.0 11.5 CALMS PERCENT OF WIND 63.2 45.7 35.5 39.3 50.3 48.0 55.5 54.2 48.7 56.1 66.7 74.8 53.3 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 242 233 230 251 256 299 19 38 303 271 344 234 257 VECTOR WIND MAGNITUDE(KNOTS) 3.7 6.0 7.1 4.6 3.1 2.1 0.7 4.2 2.2 3.3 0.7 2.1 2.3 WIND STEADINESES (MEAN %) 77.1 74.1 68.9 50.0 47.7 30.9 14.3 85.7 34.4 57.9 21.9 75.0 37.7 WIND SPEED (MEAN KNOTS) 4.8 8.1 10.3 9.2 6.5 6.8 4.9 4.9 6.4 5.7 3.2 2.8 6.1 FASTEST WIND DIRECTION 200 210 200 320 270 310 170 360 280 250 220 230 270 FASTEST WIND SPEED (KNOTS) 49 39 54 43 68 39 23 23 29 39 23 39 68 DAY 16 19 28 15 19 23 4 1 27 3 5 10 DAYS WITH SKY CLEAR (0-2)/8 21 24 15 13 16 22 23 31 30 22 11 18 246 DAYS WITH P.CLOUDY (3-6)/8 4 4 12 15 12 7 8 0 0 9 12 11 94 DAYS WITH CLOUDY (7-8)/8 6 0 4 2 3 1 0 0 0 0 7 2 25 DAYS WITH VISIBILITY =< 2 KM 0 0 0 0 0 0 0 0 0 0 0 2 2 DURATION OF SUNSHINE HOURS 219.7 270.3 264.6 262.2 291.9 315.6 314.6 373.2 331.2 273.1 173.9 214.6 3304.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 814.3 813.9 811.0 813.6 815.6 812.6 809.0 812.5 816.0 818.2 817.2 815.3 814.1 MAX. QFE PRESSURE IN HPA 820.5 821.8 821.7 818.9 820.7 817.2 813.2 816.3 821.4 823.2 825.3 822.0 825.3 DAY-HOUR 7- 6 17- 6 11- 6 14- 6 12- 6 8- 6 28- 6 10- 6 19- 6 9- 6 8- 6 28- 6 MIN. QFE PRESSURE IN HPA 804.7 809.2 802.0 807.2 809.2 805.5 804.0 806.6 811.8 813.2 812.3 808.4 802.0 DAY-HOUR 17-12 27-12 29- 9 11- 9 5-12 30-15 16-15 5-15 2-12 23-15 19-12 10- 9 MEAN QNH PRESSURE IN HPA 1017.7 1017.2 1013.8 1016.9 1019.2 1015.7 1011.4 1015.6 1019.8 1022.4 1021.2 1019.0 1017.5 MAX. QNH PRESSURE IN HPA 1025.1 1026.7 1026.6 1023.2 1025.4 1021.2 1016.4 1020.1 1026.2 1028.4 1030.9 1026.9 1030.9 DAY-HOUR 7- 6 17- 6 11- 6 14- 6 12- 6 8- 6 28- 6 10- 6 19- 6 9- 6 8- 6 28- 6 MIN. QNH PRESSURE IN HPA 1006.2 1011.6 1003.0 1009.2 1011.6 1007.2 1005.4 1008.5 1014.7 1016.4 1015.3 1010.6 1003.0 DAY-HOUR 17-12 27-12 29- 9 11- 9 5-12 30-15 16-15 5-15 2-12 23-15 19-12 10- 9 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 814.6 813.9 811.2 814.0 816.4 813.5 809.8 813.3 816.9 818.9 817.5 815.4 814.6 MAX. QFE PRESSURE IN HPA 819.6 820.3 820.3 817.7 820.2 816.9 813.0 815.8 820.7 821.8 824.5 820.0 824.5 DAY 7 17 11 14 12 15 29 10 19 9 8 28 MIN. QFE PRESSURE IN HPA 806.5 809.8 804.7 808.2 810.1 808.6 805.9 809.2 813.7 815.3 814.2 809.1 804.7 DAY 16 27 25 11 5 30 16 5 13 24 13 10 MEAN QNH PRESSURE IN HPA 1018.1 1017.3 1014.0 1017.4 1020.2 1016.7 1012.4 1016.5 1020.8 1023.2 1021.6 1019.1 1018.1 MAX. QNH PRESSURE IN HPA 1024.1 1024.9 1024.9 1021.8 1024.8 1020.8 1016.2 1019.5 1025.4 1026.7 1029.9 1024.5 1029.9 DAY 7 17 11 14 12 15 29 10 19 9 8 28 MIN. QNH PRESSURE IN HPA 1008.4 1012.3 1006.2 1010.4 1012.7 1010.9 1007.6 1011.6 1017.0 1018.9 1017.6 1011.5 1006.2 DAY 16 27 25 11 5 30 16 5 13 24 13 10 MEAN QFF PRESSURE IN HPA 1018.5 1017.5 1011.6 1010.3 1008.7 1001.0 993.2 999.8 1007.7 1013.8 1018.5 1019.6 1010.0 MAX. QFF PRESSURE IN HPA 1027.2 1028.1 1023.9 1018.5 1016.5 1007.0 997.2 1005.0 1013.3 1017.1 1027.5 1029.1 1029.1 DAY 19 8 11 14 7 1 29 30 19 18 8 23 MIN. QFF PRESSURE IN HPA 1003.8 1006.9 1000.2 1002.3 1001.0 995.0 988.1 993.3 1000.8 1007.4 1011.7 1006.5 988.1 DAY 16 19 25 10 5 30 16 6 2 7 12 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 815.5 815.1 812.1 814.6 816.7 813.8 810.3 813.9 817.6 819.7 818.4 816.4 815.4 MAX. QFE PRESSURE IN HPA 820.5 821.8 821.7 818.9 820.7 817.2 813.2 816.3 821.4 823.2 825.3 822.0 825.3 DAY 7 17 11 14 12 8 28 10 19 9 8 28 MIN. QFE PRESSURE IN HPA 807.0 810.5 803.3 808.2 812.0 808.9 806.1 809.3 814.7 816.3 815.1 809.3 803.3 DAY 16 27 29 11 5 30 16 5 13 23 13 10 MEAN QNH PRESSURE IN HPA 1019.1 1018.7 1015.1 1018.1 1020.6 1017.1 1012.9 1017.2 1021.7 1024.1 1022.7 1020.3 1019.0 MAX. QNH PRESSURE IN HPA 1025.1 1026.7 1026.6 1023.2 1025.4 1021.2 1016.4 1020.1 1026.2 1028.4 1030.9 1026.9 1030.9 DAY 7 17 11 14 12 8 28 10 19 9 8 28 MIN. QNH PRESSURE IN HPA 1009.0 1013.2 1004.5 1010.4 1015.0 1011.2 1007.9 1011.7 1018.2 1020.1 1018.7 1011.7 1004.5 DAY 16 27 29 11 5 30 16 5 13 23 13 10 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 814.5 814.2 811.3 813.8 815.8 812.9 809.4 812.9 816.4 818.4 817.4 815.4 814.4 MAX. QFE PRESSURE IN HPA 819.2 820.1 820.4 818.2 819.2 816.2 812.6 815.5 819.8 822.1 823.9 821.1 823.9 DAY 12 17 11 14 12 14 28 28 19 9 8 28 MIN. QFE PRESSURE IN HPA 805.7 809.6 802.0 807.2 810.6 807.7 805.1 808.8 813.3 814.8 814.2 808.4 802.0 DAY 17 27 29 11 5 30 16 5 13 23 12 10 MEAN QNH PRESSURE IN HPA 1017.9 1017.6 1014.1 1017.1 1019.5 1016.0 1011.9 1016.0 1020.2 1022.6 1021.4 1019.0 1017.8 MAX. QNH PRESSURE IN HPA 1023.6 1024.7 1025.0 1022.4 1023.6 1020.0 1015.7 1019.2 1024.3 1027.1 1029.2 1025.9 1029.2 DAY 12 17 11 14 12 14 28 28 19 9 8 28 MIN. QNH PRESSURE IN HPA 1007.4 1012.1 1003.0 1009.2 1013.3 1009.8 1006.7 1011.1 1016.5 1018.3 1017.6 1010.6 1003.0 DAY 17 27 29 11 5 30 16 5 13 23 12 10 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 813.2 813.0 810.0 812.7 814.5 811.5 808.0 811.5 814.7 817.0 816.1 814.5 813.1 MAX. QFE PRESSURE IN HPA 817.9 818.0 818.5 817.0 818.1 815.2 811.3 814.4 818.0 820.5 822.8 819.8 822.8 DAY 19 7 11 14 12 13 28 28 19 8 8 28 MIN. QFE PRESSURE IN HPA 804.7 809.2 802.3 807.9 809.2 806.0 804.2 807.0 811.8 813.6 812.3 808.7 802.3 DAY 17 27 29 11 5 30 16 5 2 23 19 10 MEAN QNH PRESSURE IN HPA 1016.4 1016.2 1012.6 1015.8 1018.0 1014.4 1010.2 1014.3 1018.1 1020.9 1019.9 1017.9 1016.2 MAX. QNH PRESSURE IN HPA 1022.0 1022.1 1022.7 1020.9 1022.3 1018.8 1014.1 1017.8 1022.1 1025.1 1027.9 1024.3 1027.9 DAY 19 7 11 14 12 13 28 28 19 8 8 28 MIN. QNH PRESSURE IN HPA 1006.2 1011.6 1003.3 1010.0 1011.6 1007.8 1005.6 1009.0 1014.7 1016.9 1015.3 1011.0 1003.3 DAY 17 27 29 11 5 30 16 5 2 23 19 10 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 813.6 813.3 810.5 812.9 814.5 811.4 807.7 811.1 814.6 817.3 816.5 815.0 813.2 MAX. QFE PRESSURE IN HPA 818.2 817.8 819.0 817.0 817.8 815.3 810.7 813.8 817.5 821.0 822.8 820.4 822.8 DAY 7 7 11 14 12 13 28 28 20 8 8 28 MIN. QFE PRESSURE IN HPA 805.3 809.4 803.1 808.2 810.6 805.5 804.0 806.6 811.8 813.2 812.9 809.4 803.1 DAY 17 27 29 10 5 30 16 5 2 23 19 10 MEAN QNH PRESSURE IN HPA 1016.9 1016.5 1013.2 1016.0 1017.9 1014.3 1009.8 1013.9 1018.1 1021.4 1020.4 1018.6 1016.4 MAX. QNH PRESSURE IN HPA 1022.4 1021.9 1023.3 1020.9 1021.9 1018.9 1013.4 1017.1 1021.5 1025.7 1027.9 1025.0 1027.9 DAY 7 7 11 14 12 13 28 28 20 8 8 28 MIN. QNH PRESSURE IN HPA 1006.9 1011.8 1004.3 1010.4 1013.3 1007.2 1005.4 1008.5 1014.7 1016.4 1016.0 1011.8 1004.3 DAY 17 27 29 10 5 30 16 5 2 23 19 10 MEAN QFF PRESSURE IN HPA 1017.3 1016.6 1010.6 1008.9 1006.4 998.4 990.2 997.0 1004.8 1011.9 1017.2 1019.0 1008.2 MAX. QFF PRESSURE IN HPA 1026.1 1025.6 1022.3 1016.9 1013.9 1003.0 993.4 1002.9 1009.2 1015.4 1025.2 1029.2 1029.2 DAY 19 7 11 13 6 13 28 29 20 13 8 28 MIN. QFF PRESSURE IN HPA 1005.4 1005.0 999.4 1002.5 1002.0 990.8 985.1 990.4 997.7 1006.4 1010.4 1008.0 985.1 DAY 16 22 29 28 31 30 16 5 2 23 12 10 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 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.3 6.0 10.6 17.0 21.9 26.7 29.2 28.1 24.5 17.4 12.5 10.2 17.3 MINIMUN AIR TEMPERATURE (C) -3.2 -0.4 3.1 7.9 11.8 15.2 18.9 17.1 12.2 5.7 0.5 -0.3 7.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 5 4 0 0 0 0 9 DAYS WITH MINIMUM TEMP. <=-4 14 6 2 0 0 0 0 0 0 0 0 6 28 DAYS WITH FREEZING MIN.<= 0 22 18 9 0 0 0 0 0 0 0 18 19 86 TEMPERATURE RECORDS LOWEST(C) -10.6 -7.0 -5.6 3.0 5.0 12.6 16.0 13.6 8.4 1.4 -2.8 -6.6 -10.6 DAY 15 18 6 8 2 1 22 31 18 26 27 6 MAXIMUM AIR TEMPERATURE (C) 8.1 10.8 15.7 22.3 27.1 32.0 35.1 33.8 30.7 23.8 19.3 17.1 23.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 26 29 31 18 2 0 0 108 DAYS WITH MAXIMUM TEMP. <= 0 1 0 0 0 0 0 0 0 0 0 0 0 1 TEMPERATURE RECORDS HIGHEST(C) 11.0 17.2 24.0 27.8 31.0 34.8 40.2 38.0 34.2 31.2 22.0 22.2 40.2 DAY 12 8 28 15 28 13 10 20 4 1 1 17 DIF. BETWEEN (MAX.-MIN.) (C) 11.3 11.2 12.6 14.4 15.3 16.8 16.2 16.7 18.5 18.1 18.8 17.4 15.6 MEAN DAILY TEMP. (MDT) (C) 2.4 5.2 9.4 15.1 19.5 23.6 27.0 25.4 21.4 14.8 9.9 8.4 15.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 10.7 77.8 185.1 137.9 25.7 0.3 0.0 0.0 437.5 HEATING DEG. DAYS(BASE 18 0C) 483.0 359.2 267.1 89.8 21.5 0.0 0.0 0.0 0.0 108.8 243.1 297.1 1869.6 DEWPOINT (MEAN C) -6.0 -4.5 -2.4 0.2 3.5 4.7 7.3 5.9 3.8 0.2 -5.3 -4.3 0.2 MIXING RATIO (G/KG) 3.14 3.54 4.19 4.98 6.16 6.81 8.09 7.29 6.34 5.00 3.24 3.58 5.20 VAPOUR PRESSURE (HPA) 4.08 4.60 5.44 6.46 8.00 8.81 10.41 9.43 8.21 6.52 4.24 4.68 6.74 SATURATION DEF. (HPA) 4.01 5.27 8.08 13.99 19.46 27.61 31.99 30.49 24.34 15.01 11.40 8.62 16.69 RELATIVE HUMIDITY (MEAN %) 54 51 46 35 33 26 28 26 29 36 31 40 36 RELATIVE HUMIDITY (MAX. %) 75 74 70 59 50 42 44 42 47 60 52 61 56 RELATIVE HUMIDITY (MIN. %) 38 35 30 24 24 19 19 19 19 24 20 26 25 RELATIVE HUMIDITY (MEAN% 03UTC) 73 72 69 57 50 42 44 42 47 59 52 61 56 RELATIVE HUMIDITY (MEAN% 09UTC) 46 43 38 27 27 21 23 21 23 28 23 30 29 RELATIVE HUMIDITY (MEAN% 15UTC) 51 42 37 30 28 22 22 21 23 30 26 35 31 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 23.2 46.2 81.0 0.7 0.6 0.0 3.0 1.2 0.2 10.2 0.0 5.0 171.3 DAYS WITH PRECIPITATION >=10 1 2 3 0 0 0 0 0 0 0 0 0 6 DAYS WITH PRECIPITATION >= 5 2 4 4 0 0 0 0 0 0 1 0 0 11 DAYS WITH PRECIPITATION >= 1 4 4 4 0 0 0 1 1 0 2 0 1 17 DAYS WITH PRECIPITATION 6 7 8 4 2 0 2 3 2 3 0 3 40 GREATEST DAILY PRECIPITATION 11.0 20.0 33.0 0.4 0.3 0.0 3.0 1.0 0.2 8.0 0.0 4.0 33.0 DAY 6 12 18 21 14 ** 16 4 14 11 ** 3 DAY WITH THUNDER STORM 0 0 0 0 1 1 2 0 0 2 0 0 6 DAYS WITH SNOW OR SLEET 0 1 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 0 0 1 0 1 0 1 0 0 0 0 0 3 WIND DIRECTION (PREVAILING) 270 225 225 225 225 45 45 45 45 45 45 225 225 PREVAILING WIND SPEED(KNOTS) 11.9 17.0 17.5 16.7 17.2 9.9 11.1 9.8 8.9 8.9 10.0 14.8 16.0 PREVAILING WIND PERCENT 15.5 29.3 27.7 22.7 17.4 20.0 20.0 20.6 12.7 12.3 7.3 14.8 12.1 CALMS PERCENT OF WIND 59.4 40.7 45.2 44.0 43.2 55.3 51.6 49.0 57.3 61.9 78.7 71.0 54.8 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 235 237 227 229 247 29 58 30 314 316 345 235 247 VECTOR WIND MAGNITUDE(KNOTS) 3.5 7.2 6.2 5.7 4.3 2.6 1.6 3.3 1.1 0.9 0.7 2.8 1.9 WIND STEADINESES (MEAN %) 71.4 85.7 73.8 68.7 55.1 54.2 25.4 68.7 25.6 22.0 35.0 73.7 33.3 WIND SPEED (MEAN KNOTS) 4.9 8.4 8.4 8.3 7.8 4.8 6.3 4.8 4.3 4.1 2.0 3.8 5.7 FASTEST WIND DIRECTION 220 190 240 190 210 160 300 40 260 270 270 210 240 FASTEST WIND SPEED (KNOTS) 29 49 58 49 45 27 54 19 27 29 25 33 58 DAY 6 8 31 23 29 20 14 3 24 8 16 24 DAYS WITH SKY CLEAR (0-2)/8 23 14 12 18 22 27 23 27 24 27 20 14 251 DAYS WITH P.CLOUDY (3-6)/8 5 12 11 10 9 3 8 4 6 3 9 12 92 DAYS WITH CLOUDY (7-8)/8 3 2 8 2 0 0 0 0 0 1 1 5 22 DAYS WITH VISIBILITY =< 2 KM 1 0 0 0 0 0 0 0 0 0 0 0 1 DURATION OF SUNSHINE HOURS 247.0 229.2 229.6 285.0 346.3 347.3 322.8 347.7 310.8 307.0 255.5 228.0 3456.2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 812.8 813.5 813.4 814.8 815.3 814.4 811.3 814.2 815.1 818.0 819.1 819.4 815.1 MAX. QFE PRESSURE IN HPA 820.3 824.2 820.8 824.4 822.6 819.5 817.5 818.3 820.2 823.6 825.1 826.7 826.7 DAY-HOUR 4- 6 23- 6 28- 6 12- 6 8- 6 6- 6 20- 6 29- 3 29- 6 14- 6 21- 6 10- 6 MIN. QFE PRESSURE IN HPA 800.9 803.6 802.8 808.3 808.3 809.2 803.9 808.4 809.1 812.3 814.1 812.9 800.9 DAY-HOUR 13- 9 15-12 1-12 21-12 30-12 13-15 8-12 22-12 4-12 1-12 1-12 21-12 MEAN QNH PRESSURE IN HPA 1016.0 1016.7 1016.6 1018.3 1018.9 1017.8 1014.1 1017.6 1018.7 1022.2 1023.4 1023.8 1018.7 MAX. QNH PRESSURE IN HPA 1024.9 1029.6 1025.5 1029.8 1027.7 1023.9 1021.5 1022.5 1024.8 1028.9 1030.6 1032.6 1032.6 DAY-HOUR 4- 6 23- 6 28- 6 12- 6 8- 6 6- 6 20- 6 29- 3 29- 6 14- 6 21- 6 10- 6 MIN. QNH PRESSURE IN HPA 1001.6 1004.9 1003.9 1010.5 1010.5 1011.6 1005.2 1010.6 1011.5 1015.3 1017.5 1016.0 1001.6 DAY-HOUR 13- 9 15-12 1-12 21-12 30-12 13-15 8-12 22-12 4-12 1-12 1-12 21-12 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 812.9 813.7 813.7 815.2 815.9 815.3 812.2 815.0 816.0 818.6 819.5 819.6 815.6 MAX. QFE PRESSURE IN HPA 819.2 822.3 819.7 824.0 821.6 818.9 817.1 818.3 819.0 822.8 823.9 825.8 825.8 DAY 22 23 28 12 8 6 21 29 26 14 21 10 MIN. QFE PRESSURE IN HPA 801.1 804.2 805.9 808.3 809.5 811.8 806.7 811.3 811.8 814.8 816.8 814.2 801.1 DAY 13 16 2 23 30 30 8 22 4 4 11 21 MEAN QNH PRESSURE IN HPA 1016.0 1017.0 1017.0 1018.8 1019.7 1018.9 1015.1 1018.6 1019.7 1022.9 1024.0 1024.1 1019.3 MAX. QNH PRESSURE IN HPA 1023.6 1027.3 1024.2 1029.3 1026.5 1023.2 1021.1 1022.5 1023.3 1027.9 1029.2 1031.5 1031.5 DAY 22 23 28 12 8 6 21 29 26 14 21 10 MIN. QNH PRESSURE IN HPA 1001.9 1005.6 1007.6 1010.5 1012.0 1014.7 1008.6 1014.1 1014.7 1018.3 1020.7 1017.6 1001.9 DAY 13 16 2 23 30 30 8 22 4 4 11 21 MEAN QFF PRESSURE IN HPA 1017.4 1016.0 1012.6 1010.0 1007.2 1003.0 997.2 1001.9 1006.3 1014.9 1020.2 1021.5 1010.7 MAX. QFF PRESSURE IN HPA 1027.4 1031.1 1021.0 1022.3 1016.6 1008.0 1005.8 1007.3 1010.7 1021.7 1027.6 1031.3 1031.3 DAY 15 24 6 12 3 20 21 29 18 14 21 10 MIN. QFF PRESSURE IN HPA 1001.9 1003.7 1002.5 998.5 996.5 997.2 988.8 996.0 998.9 1005.2 1014.5 1014.0 988.8 DAY 13 8 30 23 30 30 8 22 4 1 16 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 813.8 814.6 814.6 815.8 816.5 815.6 812.5 815.5 816.6 819.5 820.6 820.7 816.4 MAX. QFE PRESSURE IN HPA 820.3 824.2 820.8 824.4 822.6 819.5 817.5 818.3 820.2 823.6 825.1 826.7 826.7 DAY 4 23 28 12 8 6 20 29 29 14 21 10 MIN. QFE PRESSURE IN HPA 801.4 805.6 807.3 809.4 809.5 812.2 807.0 811.5 812.5 815.2 817.5 814.7 801.4 DAY 13 16 1 23 30 30 8 22 4 1 11 21 MEAN QNH PRESSURE IN HPA 1017.1 1018.1 1018.0 1019.6 1020.3 1019.3 1015.6 1019.1 1020.4 1024.0 1025.2 1025.4 1020.2 MAX. QNH PRESSURE IN HPA 1024.9 1029.6 1025.5 1029.8 1027.7 1023.9 1021.5 1022.5 1024.8 1028.9 1030.6 1032.6 1032.6 DAY 4 23 28 12 8 6 20 29 29 14 21 10 MIN. QNH PRESSURE IN HPA 1002.3 1007.3 1009.3 1011.8 1012.0 1015.2 1009.0 1014.4 1015.6 1018.8 1021.5 1018.2 1002.3 DAY 13 16 1 23 30 30 8 22 4 1 11 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 813.0 813.8 813.7 815.0 815.7 814.8 811.6 814.5 815.4 818.2 819.3 819.5 815.4 MAX. QFE PRESSURE IN HPA 819.4 823.5 819.4 823.9 821.8 818.6 816.7 817.6 818.4 822.6 824.0 825.2 825.2 DAY 22 23 28 12 8 6 20 29 26 14 21 10 MIN. QFE PRESSURE IN HPA 800.9 804.9 805.2 809.3 808.7 811.6 805.4 810.0 810.6 814.1 815.8 813.3 800.9 DAY 13 15 1 21 30 13 8 22 4 1 1 21 MEAN QNH PRESSURE IN HPA 1016.1 1017.1 1017.0 1018.6 1019.4 1018.3 1014.5 1018.0 1019.0 1022.4 1023.7 1023.9 1019.0 MAX. QNH PRESSURE IN HPA 1023.8 1028.7 1023.8 1029.2 1026.7 1022.9 1020.6 1021.7 1022.6 1027.7 1029.3 1030.8 1030.8 DAY 22 23 28 12 8 6 20 29 26 14 21 10 MIN. QNH PRESSURE IN HPA 1001.6 1006.4 1006.8 1011.7 1011.0 1014.5 1007.0 1012.6 1013.3 1017.5 1019.5 1016.5 1001.6 DAY 13 15 1 21 30 13 8 22 4 1 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 812.0 812.4 812.4 813.9 814.3 813.4 810.2 813.1 813.8 816.8 817.9 818.3 814.0 MAX. QFE PRESSURE IN HPA 818.0 821.8 818.4 822.3 820.4 816.9 815.2 816.3 816.9 821.0 822.2 824.6 824.6 DAY 4 23 27 12 8 5 20 29 26 14 21 9 MIN. QFE PRESSURE IN HPA 802.8 803.6 802.8 808.3 808.3 809.3 803.9 808.4 809.1 812.3 814.1 812.9 802.8 DAY 13 15 1 21 30 13 8 22 4 1 1 21 MEAN QNH PRESSURE IN HPA 1015.0 1015.5 1015.4 1017.2 1017.8 1016.7 1012.8 1016.3 1017.2 1020.7 1022.0 1022.5 1017.4 MAX. QNH PRESSURE IN HPA 1022.1 1026.7 1022.6 1027.3 1025.0 1020.8 1018.8 1020.1 1020.8 1025.7 1027.2 1030.1 1030.1 DAY 4 23 27 12 8 5 20 29 26 14 21 9 MIN. QNH PRESSURE IN HPA 1003.9 1004.9 1003.9 1010.5 1010.5 1011.7 1005.2 1010.6 1011.5 1015.3 1017.5 1016.0 1003.9 DAY 13 15 1 21 30 13 8 22 4 1 1 21 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 812.7 812.9 812.7 814.1 814.2 813.1 810.0 812.8 813.8 817.0 818.2 818.8 814.2 MAX. QFE PRESSURE IN HPA 818.9 822.1 818.8 821.7 820.0 816.4 815.1 816.2 817.2 821.2 822.6 825.1 825.1 DAY 4 23 27 12 8 6 20 29 26 14 21 9 MIN. QFE PRESSURE IN HPA 804.5 804.0 803.6 808.5 809.0 809.2 804.0 808.6 809.3 812.4 814.1 813.5 803.6 DAY 12 15 1 23 30 13 8 22 4 1 1 21 MEAN QNH PRESSURE IN HPA 1015.7 1016.0 1015.8 1017.4 1017.6 1016.2 1012.6 1015.9 1017.1 1021.0 1022.4 1023.1 1017.6 MAX. QNH PRESSURE IN HPA 1023.2 1027.1 1023.1 1026.6 1024.5 1020.2 1018.7 1020.0 1021.2 1026.0 1027.7 1030.6 1030.6 DAY 4 23 27 12 8 6 20 29 26 14 21 9 MIN. QNH PRESSURE IN HPA 1006.0 1005.4 1004.9 1010.8 1011.4 1011.6 1005.4 1010.9 1011.7 1015.4 1017.5 1016.8 1004.9 DAY 12 15 1 23 30 13 8 22 4 1 1 21 MEAN QFF PRESSURE IN HPA 1017.1 1014.9 1011.4 1008.6 1004.9 1000.1 994.6 999.0 1003.6 1013.0 1018.5 1020.5 1008.8 MAX. QFF PRESSURE IN HPA 1025.5 1030.3 1018.7 1018.9 1013.6 1005.5 1002.7 1004.8 1008.3 1019.7 1025.3 1030.9 1030.9 DAY 14 23 5 12 2 20 21 28 18 14 20 9 MIN. QFF PRESSURE IN HPA 1006.3 1002.8 1001.5 997.9 996.1 994.4 985.4 992.8 995.9 1001.4 1012.2 1011.6 985.4 DAY 12 8 1 23 30 9 7 22 4 1 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 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.8 7.8 9.1 16.5 23.0 28.2 29.0 27.7 24.7 18.4 11.6 6.3 17.2 MINIMUN AIR TEMPERATURE (C) -2.0 -0.2 1.9 7.5 11.3 15.2 18.3 16.2 11.8 6.1 2.4 -2.9 7.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 7 1 0 0 0 0 8 DAYS WITH MINIMUM TEMP. <=-4 9 3 0 0 0 0 0 0 0 0 2 15 29 DAYS WITH FREEZING MIN.<= 0 23 17 13 0 0 0 0 0 0 0 9 23 85 TEMPERATURE RECORDS LOWEST(C) -10.0 -8.0 -3.4 0.4 7.0 11.0 14.4 12.0 7.6 1.4 -6.6 -9.0 -10.0 DAY 5 7 8 11 6 16 30 28 27 22 30 6 MAXIMUM AIR TEMPERATURE (C) 8.4 13.1 13.8 21.7 28.5 34.1 34.5 33.1 31.2 24.8 16.9 12.4 22.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 7 30 29 31 24 0 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) 14.4 19.6 21.2 25.6 33.6 37.6 39.0 34.2 34.8 27.8 21.6 19.0 39.0 DAY 9 8 31 27 31 30 5 15 1 6 8 8 DIF. BETWEEN (MAX.-MIN.) (C) 10.4 13.3 11.9 14.2 17.2 18.9 16.2 16.9 19.4 18.7 14.5 15.3 15.6 MEAN DAILY TEMP. (MDT) (C) 3.2 6.4 7.8 14.6 19.9 24.7 26.4 24.6 21.5 15.4 9.7 4.8 14.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 12.3 109.5 167.1 112.7 38.2 0.0 0.0 0.0 439.9 HEATING DEG. DAYS(BASE 18 0C) 460.0 323.5 314.8 102.9 3.2 0.0 0.0 0.0 4.3 79.5 249.1 410.1 1947.4 DEWPOINT (MEAN C) -2.6 -2.3 -1.8 -0.4 1.4 4.7 6.6 4.4 1.1 -1.8 -2.1 -6.2 0.1 MIXING RATIO (G/KG) 4.03 4.14 4.29 4.83 5.39 6.87 7.75 6.59 5.22 4.22 4.23 3.10 5.05 VAPOUR PRESSURE (HPA) 5.25 5.38 5.56 6.27 6.99 8.86 9.96 8.52 6.77 5.50 5.51 4.06 6.55 SATURATION DEF. (HPA) 3.10 5.76 6.64 13.27 22.59 31.19 31.93 30.29 26.63 17.13 8.98 6.21 16.98 RELATIVE HUMIDITY (MEAN %) 66 53 52 35 26 24 26 24 23 28 42 46 37 RELATIVE HUMIDITY (MAX. %) 85 79 75 60 44 37 41 37 38 46 63 71 56 RELATIVE HUMIDITY (MIN. %) 49 37 38 24 18 17 19 18 16 19 29 29 26 RELATIVE HUMIDITY (MEAN% 03UTC) 83 76 73 59 44 37 40 37 38 46 63 70 56 RELATIVE HUMIDITY (MEAN% 09UTC) 59 43 43 26 20 19 23 19 19 21 32 33 30 RELATIVE HUMIDITY (MEAN% 15UTC) 63 47 48 29 22 22 21 20 19 24 38 40 33 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 22.0 35.4 51.2 9.3 0.0 0.0 1.7 0.0 0.0 0.0 3.1 14.7 137.4 DAYS WITH PRECIPITATION >=10 0 1 1 0 0 0 0 0 0 0 0 1 3 DAYS WITH PRECIPITATION >= 5 2 2 5 1 0 0 0 0 0 0 0 1 11 DAYS WITH PRECIPITATION >= 1 7 5 5 2 0 0 1 0 0 0 3 2 25 DAYS WITH PRECIPITATION 10 7 8 8 0 0 2 0 0 0 5 2 42 GREATEST DAILY PRECIPITATION 6.0 24.0 18.0 7.0 0.0 0.0 1.0 0.0 0.0 0.0 1.0 13.0 24.0 DAY 25 6 13 26 ** ** 14 ** ** ** 9 12 DAY WITH THUNDER STORM 0 0 0 2 0 0 0 0 0 1 0 0 3 DAYS WITH SNOW OR SLEET 2 1 1 0 0 0 0 0 0 0 0 0 4 DAYS WITH DUST 0 0 1 0 0 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 45 225 225 225 270 270 45 45 45 270 225 45 45 PREVAILING WIND SPEED(KNOTS) 7.3 13.5 14.8 16.7 16.8 16.7 11.5 9.4 8.0 11.6 15.4 7.3 8.9 PREVAILING WIND PERCENT 5.8 25.7 18.1 25.3 13.5 14.0 27.1 24.5 12.7 12.3 16.7 17.4 12.0 CALMS PERCENT OF WIND 70.3 47.1 50.3 35.3 42.6 48.0 43.9 54.8 55.3 60.0 50.0 66.5 52.1 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 274 228 233 239 272 261 35 37 340 300 243 340 262 VECTOR WIND MAGNITUDE(KNOTS) 0.8 4.4 3.3 6.8 2.9 3.0 2.4 3.3 1.3 1.5 3.2 0.7 1.7 WIND STEADINESES (MEAN %) 23.5 69.8 54.1 68.7 40.8 46.9 38.1 78.6 30.2 39.5 55.2 22.6 30.4 WIND SPEED (MEAN KNOTS) 3.4 6.3 6.1 9.9 7.1 6.4 6.3 4.2 4.3 3.8 5.8 3.1 5.6 FASTEST WIND DIRECTION 100 210 190 200 250 260 210 150 270 280 240 240 250 FASTEST WIND SPEED (KNOTS) 29 39 39 43 49 39 27 19 21 23 31 25 49 DAY 9 20 26 3 14 6 13 22 12 29 26 3 DAYS WITH SKY CLEAR (0-2)/8 8 14 14 13 26 30 30 24 30 27 19 20 255 DAYS WITH P.CLOUDY (3-6)/8 15 11 8 16 5 0 1 7 0 4 10 9 86 DAYS WITH CLOUDY (7-8)/8 8 3 9 1 0 0 0 0 0 0 1 2 24 DAYS WITH VISIBILITY =< 2 KM 0 0 0 0 0 0 0 0 0 0 0 0 0 DURATION OF SUNSHINE HOURS 168.2 211.0 238.3 276.5 370.5 380.6 363.3 338.4 324.7 295.1 252.3 238.4 3457.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 814.9 814.4 812.6 814.7 814.4 812.3 810.2 813.6 813.9 817.8 816.5 819.1 814.5 MAX. QFE PRESSURE IN HPA 823.0 820.2 820.3 819.1 821.5 818.4 814.9 819.7 820.5 821.8 822.6 825.2 825.2 DAY-HOUR 3- 3 12- 6 31- 6 30- 6 28- 6 1- 6 19- 3 20- 6 30- 6 11- 6 18- 6 6- 6 MIN. QFE PRESSURE IN HPA 807.2 804.7 803.5 808.1 807.6 804.8 806.5 808.1 809.0 813.8 811.1 812.0 803.5 DAY-HOUR 18-12 6- 3 2-12 8-12 20-15 24-12 12-15 14-15 15-15 31-12 12- 3 15-12 MEAN QNH PRESSURE IN HPA 1018.4 1017.8 1015.7 1018.2 1017.8 1015.3 1012.8 1016.9 1017.3 1021.9 1020.3 1023.4 1018.0 MAX. QNH PRESSURE IN HPA 1028.1 1024.8 1024.9 1023.5 1026.3 1022.6 1018.4 1024.2 1025.1 1026.7 1027.7 1030.8 1030.8 DAY-HOUR 3- 3 12- 6 31- 6 30- 6 28- 6 1- 6 19- 3 20- 6 30- 6 11- 6 18- 6 6- 6 MIN. QNH PRESSURE IN HPA 1009.2 1006.2 1004.8 1010.3 1009.7 1006.3 1008.4 1010.3 1011.4 1017.1 1013.9 1015.0 1004.8 DAY-HOUR 18-12 6- 3 2-12 8-12 20-15 24-12 12-15 14-15 15-15 31-12 12- 3 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 814.9 814.4 812.8 815.2 815.1 813.1 811.2 814.4 814.8 818.4 816.7 819.3 815.0 MAX. QFE PRESSURE IN HPA 823.0 818.7 819.5 818.8 820.6 817.7 814.9 819.3 819.3 820.8 821.0 824.3 824.3 DAY 3 12 31 26 28 1 19 20 30 11 18 6 MIN. QFE PRESSURE IN HPA 809.2 804.7 805.7 809.6 810.1 806.8 808.8 810.9 811.2 815.1 811.1 813.4 804.7 DAY 18 6 2 8 21 25 14 14 16 31 12 14 MEAN QNH PRESSURE IN HPA 1018.4 1017.8 1015.9 1018.8 1018.7 1016.3 1013.9 1017.8 1018.4 1022.7 1020.6 1023.7 1018.6 MAX. QNH PRESSURE IN HPA 1028.1 1023.0 1023.9 1023.1 1025.3 1021.8 1018.4 1023.7 1023.7 1025.5 1025.7 1029.7 1029.7 DAY 3 12 31 26 28 1 19 20 30 11 18 6 MIN. QNH PRESSURE IN HPA 1011.6 1006.2 1007.4 1012.1 1012.7 1008.7 1011.1 1013.6 1014.0 1018.7 1013.9 1016.6 1006.2 DAY 18 6 2 8 21 25 14 14 16 31 12 14 MEAN QFF PRESSURE IN HPA 1019.3 1016.0 1012.8 1010.6 1005.9 999.9 996.2 1001.7 1005.0 1014.2 1016.1 1024.0 1010.1 MAX. QFF PRESSURE IN HPA 1032.4 1025.8 1020.7 1020.0 1012.3 1006.1 1001.4 1008.4 1014.7 1017.0 1025.7 1033.4 1033.4 DAY 3 7 19 11 28 1 29 20 30 30 14 6 MIN. QFF PRESSURE IN HPA 1009.6 1004.0 1004.9 1001.3 998.2 990.3 992.2 997.5 998.5 1010.4 1006.2 1012.4 990.3 DAY 18 21 2 8 21 25 3 14 16 31 12 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 816.0 815.6 813.8 815.8 815.6 813.5 811.5 814.9 815.5 819.3 817.8 820.4 815.8 MAX. QFE PRESSURE IN HPA 822.2 820.2 820.3 819.1 821.5 818.4 814.8 819.7 820.5 821.8 822.6 825.2 825.2 DAY 3 12 31 30 28 1 19 20 30 11 18 6 MIN. QFE PRESSURE IN HPA 808.8 807.7 806.2 810.1 810.5 806.9 809.0 811.2 811.8 816.1 812.1 814.4 806.2 DAY 18 6 2 8 20 25 12 14 16 31 12 14 MEAN QNH PRESSURE IN HPA 1019.7 1019.2 1017.1 1019.5 1019.3 1016.7 1014.4 1018.4 1019.2 1023.7 1021.9 1025.0 1019.5 MAX. QNH PRESSURE IN HPA 1027.2 1024.8 1024.9 1023.5 1026.3 1022.6 1018.3 1024.2 1025.1 1026.7 1027.7 1030.8 1030.8 DAY 3 12 31 30 28 1 19 20 30 11 18 6 MIN. QNH PRESSURE IN HPA 1011.1 1009.8 1008.0 1012.7 1013.2 1008.8 1011.4 1014.0 1014.7 1019.9 1015.1 1017.8 1008.0 DAY 18 6 2 8 20 25 12 14 16 31 12 14 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 815.2 814.8 813.0 814.9 814.7 812.6 810.6 814.0 814.3 818.0 816.6 819.2 814.8 MAX. QFE PRESSURE IN HPA 821.5 819.4 819.4 818.3 820.9 817.7 813.9 818.6 819.5 820.4 821.1 823.9 823.9 DAY 2 12 31 30 28 1 19 19 30 11 14 6 MIN. QFE PRESSURE IN HPA 807.9 808.7 805.3 809.3 809.1 806.7 808.4 809.9 810.7 814.5 811.3 813.4 805.3 DAY 18 20 2 8 20 25 12 14 16 31 12 15 MEAN QNH PRESSURE IN HPA 1018.8 1018.3 1016.2 1018.4 1018.2 1015.7 1013.3 1017.4 1017.7 1022.1 1020.5 1023.6 1018.3 MAX. QNH PRESSURE IN HPA 1026.3 1023.8 1023.8 1022.5 1025.6 1021.8 1017.2 1022.9 1023.9 1025.0 1025.9 1029.2 1029.2 DAY 2 12 31 30 28 1 19 19 30 11 14 6 MIN. QNH PRESSURE IN HPA 1010.0 1011.0 1006.9 1011.7 1011.5 1008.6 1010.6 1012.4 1013.4 1018.0 1014.1 1016.6 1006.9 DAY 18 20 2 8 20 25 12 14 16 31 12 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 814.0 813.4 811.7 813.7 813.2 811.2 809.1 812.6 812.6 816.5 815.5 818.0 813.5 MAX. QFE PRESSURE IN HPA 821.3 818.1 817.2 816.9 818.8 816.3 811.8 816.7 818.1 818.7 819.8 822.5 822.5 DAY 2 12 31 22 28 1 28 19 30 1 15 6 MIN. QFE PRESSURE IN HPA 807.2 807.6 803.5 808.1 807.8 804.8 806.6 808.8 809.1 813.8 811.1 812.0 803.5 DAY 18 20 2 8 20 24 12 14 16 31 12 15 MEAN QNH PRESSURE IN HPA 1017.4 1016.7 1014.6 1017.0 1016.4 1014.0 1011.5 1015.7 1015.6 1020.3 1019.2 1022.2 1016.7 MAX. QNH PRESSURE IN HPA 1026.1 1022.3 1021.2 1020.8 1023.1 1020.1 1014.7 1020.6 1022.3 1023.0 1024.3 1027.5 1027.5 DAY 2 12 31 22 28 1 28 19 30 1 15 6 MIN. QNH PRESSURE IN HPA 1009.2 1009.7 1004.8 1010.3 1009.9 1006.3 1008.5 1011.1 1011.5 1017.1 1013.9 1015.0 1004.8 DAY 18 20 2 8 20 24 12 14 16 31 12 15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 814.4 813.9 811.9 813.9 813.2 811.1 808.8 812.2 812.6 816.6 815.9 818.5 813.6 MAX. QFE PRESSURE IN HPA 821.7 818.1 817.3 817.3 818.1 815.9 811.5 816.3 818.3 819.0 820.2 822.9 822.9 DAY 2 12 31 22 28 1 28 19 30 27 15 6 MIN. QFE PRESSURE IN HPA 807.6 808.4 804.2 808.2 807.6 805.1 806.5 808.1 809.0 814.4 811.7 812.2 804.2 DAY 9 20 2 8 20 24 12 14 15 31 12 15 MEAN QNH PRESSURE IN HPA 1017.9 1017.2 1014.9 1017.2 1016.4 1013.8 1011.2 1015.2 1015.6 1020.5 1019.7 1022.8 1016.9 MAX. QNH PRESSURE IN HPA 1026.6 1022.3 1021.3 1021.3 1022.3 1019.6 1014.4 1020.1 1022.5 1023.3 1024.8 1028.0 1028.0 DAY 2 12 31 22 28 1 28 19 30 27 15 6 MIN. QNH PRESSURE IN HPA 1009.7 1010.6 1005.6 1010.4 1009.7 1006.7 1008.4 1010.3 1011.4 1017.8 1014.6 1015.2 1005.6 DAY 9 20 2 8 20 24 12 14 15 31 12 15 MEAN QFF PRESSURE IN HPA 1018.7 1015.2 1011.6 1008.8 1003.3 997.0 993.4 998.8 1002.1 1011.9 1015.2 1023.0 1008.3 MAX. QFF PRESSURE IN HPA 1029.8 1025.8 1018.6 1015.7 1008.6 1003.1 998.3 1004.5 1012.9 1015.6 1025.9 1032.1 1032.1 DAY 2 7 5 11 27 1 29 20 30 27 30 6 MIN. QFF PRESSURE IN HPA 1005.2 1003.6 1001.7 999.4 995.2 989.1 988.6 993.6 995.8 1009.6 1007.6 1011.0 988.6 DAY 9 20 2 8 20 24 3 14 16 8 12 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 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.4 4.0 9.1 17.5 22.1 25.5 26.9 25.7 23.2 15.3 6.8 4.5 15.3 MINIMUN AIR TEMPERATURE (C) -3.9 -3.2 1.3 9.0 11.1 14.4 17.2 14.9 12.9 5.9 1.4 -1.4 6.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 7 2 0 0 0 0 9 DAYS WITH MINIMUM TEMP. <=-4 17 12 6 0 0 0 0 0 0 0 1 10 46 DAYS WITH FREEZING MIN.<= 0 25 24 10 0 0 0 0 0 0 0 13 18 90 TEMPERATURE RECORDS LOWEST(C) -11.8 -9.2 -6.8 1.8 6.0 11.4 11.0 11.6 8.6 1.4 -4.0 -7.4 -11.8 DAY 14 11 4 2 4 2 21 21 27 20 29 17 MAXIMUM AIR TEMPERATURE (C) 9.2 11.2 16.2 24.8 30.5 33.7 34.0 33.7 31.5 23.6 12.8 11.3 22.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 20 25 31 31 23 0 0 0 130 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 14.6 17.2 22.0 27.8 35.0 37.0 38.2 36.2 34.0 28.4 22.4 18.6 38.2 DAY 3 24 24 14 30 9 11 7 1 1 1 1 DIF. BETWEEN (MAX.-MIN.) (C) 13.1 14.4 14.9 15.8 19.4 19.3 16.8 18.8 18.6 17.7 11.4 12.7 16.1 MEAN DAILY TEMP. (MDT) (C) 2.6 4.0 8.8 16.9 20.8 24.1 25.6 24.3 22.2 14.8 7.1 5.0 14.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 23.1 94.4 141.8 102.3 45.5 0.0 0.0 0.0 407.1 HEATING DEG. DAYS(BASE 18 0C) 477.2 404.9 286.0 49.6 2.7 0.0 0.0 0.0 0.0 101.6 327.1 403.3 2052.5 DEWPOINT (MEAN C) -8.0 -6.9 -7.4 -2.1 -1.9 -0.2 3.2 0.7 0.6 -0.8 -0.2 -2.8 -2.2 MIXING RATIO (G/KG) 2.77 2.93 2.94 4.22 4.24 4.83 6.17 5.05 5.05 4.61 4.75 3.96 4.29 VAPOUR PRESSURE (HPA) 3.60 3.82 3.82 5.49 5.50 6.25 7.97 6.55 6.55 6.02 6.19 5.15 5.58 SATURATION DEF. (HPA) 4.70 4.84 8.36 15.53 22.77 28.37 29.20 28.15 23.41 12.36 4.22 3.73 15.47 RELATIVE HUMIDITY (MEAN %) 48 50 34 29 22 20 23 21 24 37 66 62 36 RELATIVE HUMIDITY (MAX. %) 69 77 55 46 36 31 33 32 37 55 84 85 53 RELATIVE HUMIDITY (MIN. %) 32 27 19 18 12 13 16 14 16 23 47 39 23 RELATIVE HUMIDITY (MEAN% 03UTC) 64 71 53 44 34 31 33 31 36 52 82 80 51 RELATIVE HUMIDITY (MEAN% 09UTC) 41 35 23 20 15 15 18 16 18 26 50 44 27 RELATIVE HUMIDITY (MEAN% 15UTC) 42 36 24 21 16 14 18 15 18 30 56 55 29 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 48.5 3.7 4.2 0.2 0.5 0.0 0.0 0.0 0.0 0.1 24.2 16.8 98.2 DAYS WITH PRECIPITATION >=10 2 0 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH PRECIPITATION >= 5 2 0 0 0 0 0 0 0 0 0 2 1 5 DAYS WITH PRECIPITATION >= 1 2 2 2 0 0 0 0 0 0 0 6 4 16 DAYS WITH PRECIPITATION 7 4 3 1 1 1 3 0 0 5 9 12 46 GREATEST DAILY PRECIPITATION 27.0 2.1 2.0 0.2 0.5 0.0 0.0 0.0 0.0 0.0 6.0 5.0 27.0 DAY 28 25 25 17 1 ** ** ** ** ** 17 24 DAY WITH THUNDER STORM 0 0 1 0 0 0 0 0 0 0 0 0 1 DAYS WITH SNOW OR SLEET 4 1 0 0 0 0 0 0 0 0 2 2 9 DAYS WITH DUST 1 0 3 1 1 1 0 0 0 0 0 0 7 WIND DIRECTION (PREVAILING) 270 225 270 225 270 45 45 45 45 225 45 225 225 PREVAILING WIND SPEED(KNOTS) 12.1 12.5 12.1 12.4 14.0 10.4 10.7 9.9 9.2 10.8 7.8 11.5 11.9 PREVAILING WIND PERCENT 11.0 13.0 14.5 16.7 19.0 14.6 25.8 21.4 8.8 8.5 10.0 12.5 8.7 CALMS PERCENT OF WIND 63.0 62.2 46.4 52.1 52.4 56.7 53.2 56.0 61.7 62.1 72.9 58.5 57.9 NO. OF WIND OBSERVATION 181 230 248 240 248 240 248 248 240 248 240 248 2859 VECTOR WIND DIRECTION (MEAN) 224 225 226 257 252 11 52 52 312 270 1 191 245 VECTOR WIND MAGNITUDE(KNOTS) 2.5 2.7 3.8 4.1 4.2 1.0 3.5 3.1 0.3 1.1 0.3 2.0 1.0 WIND STEADINESES (MEAN %) 56.8 71.1 54.3 71.9 75.0 21.3 74.5 75.6 8.3 30.6 13.6 50.0 22.7 WIND SPEED (MEAN KNOTS) 4.4 3.8 7.0 5.7 5.6 4.7 4.7 4.1 3.6 3.6 2.2 4.0 4.4 FASTEST WIND DIRECTION 210 240 180 240 230 150 60 70 210 310 240 120 180 FASTEST WIND SPEED (KNOTS) 39 29 58 39 39 35 25 23 23 31 23 29 58 DAY 20 7 24 11 11 15 13 9 3 27 3 11 DAYS WITH SKY CLEAR (0-2)/8 19 20 21 16 24 29 25 29 25 22 14 18 262 DAYS WITH P.CLOUDY (3-6)/8 9 8 7 13 5 1 6 2 5 9 7 12 84 DAYS WITH CLOUDY (7-8)/8 3 1 3 1 2 0 0 0 0 0 9 1 20 DAYS WITH VISIBILITY =< 2 KM 0 0 0 1 0 0 0 0 0 0 2 1 4 DURATION OF SUNSHINE HOURS 210.8 242.0 281.0 286.6 357.5 361.9 341.5 344.4 294.0 274.2 185.5 220.1 3399.5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 813.6 814.0 813.5 815.4 813.6 811.3 812.3 813.4 814.1 817.6 817.8 816.1 814.4 MAX. QFE PRESSURE IN HPA 821.8 821.3 819.2 820.1 818.6 816.0 819.1 817.7 820.2 822.0 825.1 822.1 825.1 DAY-HOUR 31- 6 11- 6 21- 6 2- 6 4- 6 4- 6 30- 6 23- 6 29- 6 16- 6 17- 6 4- 6 MIN. QFE PRESSURE IN HPA 806.4 804.0 807.9 812.0 809.1 805.8 805.2 806.7 805.9 812.0 812.0 807.0 804.0 DAY-HOUR 17-12 7- 9 2- 3 21-15 27-15 25-15 12-15 30-15 1-12 1-12 6-12 15- 9 MEAN QNH PRESSURE IN HPA 1016.9 1017.4 1016.7 1019.0 1016.9 1014.2 1015.4 1016.6 1017.5 1021.7 1021.9 1019.9 1017.8 MAX. QNH PRESSURE IN HPA 1026.7 1026.1 1023.6 1024.7 1022.9 1019.7 1023.5 1021.8 1024.8 1026.9 1030.6 1027.1 1030.6 DAY-HOUR 31- 6 11- 6 21- 6 2- 6 4- 6 4- 6 30- 6 23- 6 29- 6 16- 6 17- 6 4- 6 MIN. QNH PRESSURE IN HPA 1008.2 1005.4 1010.0 1015.0 1011.5 1007.5 1006.8 1008.6 1007.6 1015.0 1015.0 1009.0 1005.4 DAY-HOUR 17-12 7- 9 2- 3 21-15 27-15 25-15 12-15 30-15 1-12 1-12 6-12 15- 9 MEAN QFF PRESSURE IN HPA ****** 1016.4 1011.8 1007.7 1002.3 997.0 997.1 999.4 1002.0 1011.9 1018.6 1018.3 ****** MAX. QFF PRESSURE IN HPA ****** 1030.1 1021.0 1017.7 1012.2 1005.8 1007.0 1008.0 1011.8 1019.4 1029.9 1029.8 ****** DAY-HOUR **-** 11- 6 4- 3 2- 3 4- 3 14- 3 30- 3 21- 3 30- 3 6- 3 17- 6 17- 6 MIN. QFF PRESSURE IN HPA ****** 1002.8 999.9 1001.3 993.7 986.7 987.0 990.4 990.5 1001.2 1007.9 1005.6 ****** DAY-HOUR **-** 7- 9 24-18 21-18 27-12 25-12 12-12 30-12 2-12 1-12 1-12 11- 9 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** 813.6 813.3 815.2 813.8 811.5 812.4 813.6 814.2 817.6 817.7 816.0 ****** MAX. QFE PRESSURE IN HPA ****** 820.3 817.3 818.2 816.9 815.2 817.9 816.4 819.6 820.2 823.6 820.5 ****** DAY ** 11 21 13 4 17 31 14 30 6 17 30 MIN. QFE PRESSURE IN HPA ****** 805.4 808.6 812.0 810.6 807.9 806.8 808.2 807.8 813.3 813.0 808.6 ****** DAY ** 7 2 22 27 25 12 31 2 2 6 15 MEAN QNH PRESSURE IN HPA ****** 1016.9 1016.6 1018.8 1017.1 1014.4 1015.4 1016.8 1017.6 1021.7 1021.8 1019.8 ****** MAX. QNH PRESSURE IN HPA ****** 1024.9 1021.3 1022.4 1020.8 1018.8 1022.0 1020.2 1024.1 1024.8 1028.9 1025.1 ****** DAY ** 11 21 13 4 17 31 14 30 6 17 30 MIN. QNH PRESSURE IN HPA ****** 1007.0 1010.9 1015.0 1013.3 1010.0 1008.7 1010.4 1009.9 1016.5 1016.2 1010.9 ****** DAY ** 7 2 22 27 25 12 31 2 2 6 15 MEAN QFF PRESSURE IN HPA ****** 1015.4 1011.1 1007.5 1002.7 997.2 997.2 999.6 1001.8 1011.5 1018.1 1017.6 ****** MAX. QFF PRESSURE IN HPA ****** 1027.6 1020.4 1014.1 1010.5 1003.7 1006.1 1004.3 1009.9 1017.0 1026.7 1027.2 ****** DAY ** 11 4 2 4 17 31 14 30 7 18 17 MIN. QFF PRESSURE IN HPA ****** 1003.7 1003.5 1002.5 995.2 989.3 988.0 992.3 992.7 1003.9 1009.7 1006.9 ****** DAY ** 7 25 22 31 25 13 31 2 2 2 11 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 813.7 814.1 814.0 815.9 814.4 812.3 813.1 814.3 815.0 818.2 818.1 816.3 814.9 MAX. QFE PRESSURE IN HPA 821.0 820.6 818.3 818.5 817.7 815.6 818.3 817.3 819.7 820.9 824.4 820.7 824.4 DAY 31 11 21 2 4 4 31 21 30 16 17 4 MIN. QFE PRESSURE IN HPA 807.1 804.4 807.9 812.8 811.2 808.7 807.6 809.1 808.7 813.6 813.0 808.3 804.4 DAY 21 7 2 22 27 26 12 31 2 2 6 15 MEAN QNH PRESSURE IN HPA 1017.0 1017.5 1017.3 1019.6 1017.8 1015.3 1016.3 1017.7 1018.6 1022.4 1022.2 1020.1 1018.5 MAX. QNH PRESSURE IN HPA 1025.7 1025.3 1022.5 1022.7 1021.8 1019.3 1022.5 1021.3 1024.2 1025.6 1029.8 1025.4 1029.8 DAY 31 11 21 2 4 4 31 21 30 16 17 4 MIN. QNH PRESSURE IN HPA 1009.1 1005.8 1010.0 1015.9 1014.0 1011.0 1009.7 1011.5 1011.0 1016.9 1016.2 1010.5 1005.8 DAY 21 7 2 22 27 26 12 31 2 2 6 15 MEAN QFF PRESSURE IN HPA 1018.3 1017.9 1013.8 1009.7 1004.7 999.6 999.4 1002.1 1005.0 1014.4 1020.0 1019.7 1010.4 MAX. QFF PRESSURE IN HPA 1031.0 1029.9 1021.0 1017.7 1012.2 1005.8 1007.0 1008.0 1011.8 1019.4 1028.3 1029.5 1031.0 DAY 31 11 4 2 4 14 30 21 30 6 17 17 MIN. QFF PRESSURE IN HPA 1006.7 1003.2 1004.2 1003.6 998.6 993.3 991.0 994.8 996.4 1006.7 1011.9 1009.2 991.0 DAY 21 7 24 22 27 25 11 31 2 1 2 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 814.8 815.2 814.8 816.6 814.8 812.6 813.5 814.8 815.8 819.0 819.1 817.2 815.7 MAX. QFE PRESSURE IN HPA 821.8 821.3 819.2 820.1 818.6 816.0 819.1 817.7 820.2 822.0 825.1 822.1 825.1 DAY 31 11 21 2 4 4 30 23 29 16 17 4 MIN. QFE PRESSURE IN HPA 808.5 804.4 808.4 813.6 812.2 808.4 807.9 809.4 809.1 814.2 814.0 808.5 804.4 DAY 17 7 2 22 27 26 12 31 1 2 6 15 MEAN QNH PRESSURE IN HPA 1018.3 1018.8 1018.4 1020.4 1018.4 1015.7 1016.8 1018.3 1019.5 1023.3 1023.4 1021.2 1019.4 MAX. QNH PRESSURE IN HPA 1026.7 1026.1 1023.6 1024.7 1022.9 1019.7 1023.5 1021.8 1024.8 1026.9 1030.6 1027.1 1030.6 DAY 31 11 21 2 4 4 30 23 29 16 17 4 MIN. QNH PRESSURE IN HPA 1010.8 1005.8 1010.6 1016.9 1015.2 1010.6 1010.0 1011.8 1011.5 1017.6 1017.4 1010.8 1005.8 DAY 17 7 2 22 27 26 12 31 1 2 6 15 MEAN QFF PRESSURE IN HPA ****** 1018.2 1013.3 1008.6 1003.1 998.2 997.9 1000.5 1003.5 1013.2 1020.3 1020.1 ****** MAX. QFF PRESSURE IN HPA ****** 1030.1 1019.7 1016.9 1011.1 1004.9 1006.2 1004.9 1010.0 1018.7 1029.9 1029.8 ****** DAY ** 11 3 2 4 14 31 21 28 5 17 17 MIN. QFF PRESSURE IN HPA ****** 1003.7 1003.7 1002.8 997.4 992.6 989.1 993.1 994.2 1003.2 1011.1 1008.3 ****** DAY ** 7 24 21 27 25 12 31 1 1 2 11 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 813.6 814.6 813.8 815.7 813.9 811.7 812.7 813.8 814.4 817.6 817.8 816.0 814.6 MAX. QFE PRESSURE IN HPA 821.0 819.4 818.1 818.8 817.4 815.0 818.3 817.1 819.1 820.4 823.9 820.9 823.9 DAY 31 11 21 2 4 4 30 23 29 16 17 4 MIN. QFE PRESSURE IN HPA 807.5 804.0 808.6 813.5 810.8 807.5 807.0 808.1 807.9 812.6 812.7 807.0 804.0 DAY 17 7 2 22 27 26 12 31 1 2 6 15 MEAN QNH PRESSURE IN HPA 1016.9 1018.0 1017.1 1019.4 1017.2 1014.6 1015.8 1017.2 1017.8 1021.7 1021.9 1019.8 1018.1 MAX. QNH PRESSURE IN HPA 1025.7 1023.8 1022.3 1023.1 1021.4 1018.6 1022.5 1021.1 1023.5 1025.0 1029.2 1025.6 1029.2 DAY 31 11 21 2 4 4 30 23 29 16 17 4 MIN. QNH PRESSURE IN HPA 1009.6 1005.4 1010.9 1016.8 1013.5 1009.6 1009.0 1010.3 1010.0 1015.7 1015.8 1009.0 1005.4 DAY 17 7 2 22 27 26 12 31 1 2 6 15 MEAN QFF PRESSURE IN HPA ****** 1016.2 1011.5 1007.5 1001.7 996.7 996.7 999.1 1001.2 1010.9 1017.8 1017.3 ****** MAX. QFF PRESSURE IN HPA ****** 1026.0 1018.4 1015.5 1009.2 1003.3 1004.3 1004.3 1008.1 1016.3 1028.3 1026.1 ****** DAY ** 11 3 2 4 14 30 20 29 5 17 17 MIN. QFF PRESSURE IN HPA ****** 1002.8 1002.4 1003.6 995.2 990.2 987.3 991.3 991.9 1002.3 1009.4 1005.6 ****** DAY ** 7 24 22 31 25 12 31 2 2 1 11 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 812.4 813.2 812.3 814.3 812.4 810.2 811.4 812.3 812.7 816.3 816.8 815.1 813.3 MAX. QFE PRESSURE IN HPA 819.5 818.3 815.6 816.8 815.7 813.7 817.3 815.9 817.4 818.8 823.5 819.4 823.5 DAY 30 10 21 2 7 17 30 20 29 16 17 4 MIN. QFE PRESSURE IN HPA 806.4 804.0 808.6 812.1 809.4 805.9 805.5 806.9 805.9 812.0 812.0 807.2 804.0 DAY 17 7 2 6 27 26 12 30 1 1 6 15 MEAN QNH PRESSURE IN HPA 1015.4 1016.4 1015.3 1017.7 1015.4 1012.8 1014.3 1015.3 1015.7 1020.1 1020.7 1018.7 1016.5 MAX. QNH PRESSURE IN HPA 1023.9 1022.5 1019.3 1020.7 1019.4 1017.0 1021.3 1019.6 1021.4 1023.1 1028.7 1023.8 1028.7 DAY 30 10 21 2 7 17 30 20 29 16 17 4 MIN. QNH PRESSURE IN HPA 1008.2 1005.4 1010.9 1015.1 1011.8 1007.6 1007.2 1008.8 1007.6 1015.0 1015.0 1009.2 1005.4 DAY 17 7 2 6 27 26 12 30 1 1 6 15 MEAN QFF PRESSURE IN HPA ****** 1014.7 1009.8 1006.2 1000.8 995.5 996.0 997.9 999.8 1009.9 1016.9 1016.5 ****** MAX. QFF PRESSURE IN HPA ****** 1024.8 1017.0 1011.8 1007.3 1001.8 1004.7 1003.7 1007.2 1014.3 1029.0 1025.8 ****** DAY ** 10 3 2 4 16 30 20 29 5 17 17 MIN. QFF PRESSURE IN HPA ****** 1004.2 1001.1 1003.2 993.7 986.7 987.0 990.4 990.5 1001.2 1007.9 1006.4 ****** DAY ** 7 24 11 27 25 12 30 2 1 1 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 812.9 813.5 812.6 814.3 812.3 809.8 810.9 811.9 812.6 816.7 817.3 815.9 813.4 MAX. QFE PRESSURE IN HPA 819.9 818.7 815.8 816.5 816.6 813.3 816.7 815.4 817.6 819.1 823.4 820.2 823.4 DAY 30 10 20 13 1 30 30 20 29 27 17 17 MIN. QFE PRESSURE IN HPA 807.3 805.6 808.4 812.0 809.1 805.8 805.2 806.7 806.0 812.6 812.6 808.9 805.2 DAY 17 7 24 21 27 25 12 30 1 1 21 15 MEAN QNH PRESSURE IN HPA 1016.0 1016.7 1015.7 1017.7 1015.3 1012.3 1013.7 1014.8 1015.7 1020.6 1021.3 1019.6 1016.6 MAX. QNH PRESSURE IN HPA 1024.4 1023.0 1019.5 1020.3 1020.5 1016.5 1020.6 1019.0 1021.7 1023.5 1028.6 1024.8 1028.6 DAY 30 10 20 13 1 30 30 20 29 27 17 17 MIN. QNH PRESSURE IN HPA 1009.3 1007.3 1010.6 1015.0 1011.5 1007.5 1006.8 1008.6 1007.8 1015.7 1015.7 1011.2 1006.8 DAY 17 7 24 21 27 25 12 30 1 1 21 15 MEAN QFF PRESSURE IN HPA 1017.3 1016.9 1012.1 1007.6 1002.0 996.4 996.7 999.0 1001.9 1012.6 1019.0 1019.2 1008.4 MAX. QFF PRESSURE IN HPA 1028.3 1027.2 1018.7 1014.4 1011.1 1002.7 1005.6 1004.9 1009.5 1016.2 1029.8 1028.4 1029.8 DAY 30 10 3 2 1 16 30 20 29 25 17 17 MIN. QFF PRESSURE IN HPA 1009.5 1006.5 1000.8 1002.3 995.3 989.8 987.4 992.2 992.9 1004.2 1010.2 1010.4 987.4 DAY 6 7 24 21 27 25 10 31 2 1 2 11 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** 814.1 813.6 815.5 813.7 811.1 812.1 813.0 814.1 817.8 818.0 816.4 ****** MAX. QFE PRESSURE IN HPA ****** 819.9 817.1 817.4 817.6 815.0 818.6 816.6 819.3 820.4 823.1 820.7 ****** DAY ** 10 20 1 7 16 30 20 29 27 16 17 MIN. QFE PRESSURE IN HPA ****** 806.7 808.0 812.5 810.8 807.5 806.6 807.5 807.4 813.6 813.3 809.7 ****** DAY ** 7 24 21 30 25 12 31 1 1 21 14 MEAN QNH PRESSURE IN HPA ****** 1017.5 1016.9 1019.2 1016.9 1013.9 1015.1 1016.2 1017.5 1022.0 1022.1 1020.2 ****** MAX. QNH PRESSURE IN HPA ****** 1024.4 1021.1 1021.4 1021.7 1018.6 1022.9 1020.5 1023.7 1025.0 1028.3 1025.4 ****** DAY ** 10 20 1 7 16 30 20 29 27 16 17 MIN. QNH PRESSURE IN HPA ****** 1008.6 1010.2 1015.6 1013.5 1009.6 1008.5 1009.6 1009.4 1016.9 1016.5 1012.2 ****** DAY ** 7 24 21 30 25 12 31 1 1 21 14 MEAN QFF PRESSURE IN HPA ****** 1016.8 1011.7 1007.2 1001.5 996.3 996.3 998.4 1001.6 1011.9 1019.0 1019.2 ****** MAX. QFF PRESSURE IN HPA ****** 1029.1 1020.2 1013.9 1009.4 1003.7 1005.5 1003.6 1009.0 1016.4 1028.9 1028.6 ****** DAY ** 10 3 1 3 16 30 21 29 4 17 17 MIN. QFF PRESSURE IN HPA ****** 1007.7 999.9 1001.3 995.6 990.4 987.4 991.7 992.0 1002.1 1009.7 1011.3 ****** DAY ** 7 24 21 30 24 11 31 1 1 2 14 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** 814.0 813.6 815.6 813.9 811.5 812.6 813.4 814.5 817.8 817.9 816.1 ****** MAX. QFE PRESSURE IN HPA ****** 820.1 817.3 818.0 816.8 815.5 819.0 816.7 819.4 820.2 823.2 821.0 ****** DAY ** 10 20 12 6 16 30 20 29 5 16 29 MIN. QFE PRESSURE IN HPA ****** 806.6 810.0 812.0 810.7 807.9 807.1 808.2 808.0 813.3 813.0 809.4 ****** DAY ** 6 24 21 26 24 11 30 1 1 21 14 MEAN QNH PRESSURE IN HPA ****** 1017.3 1016.9 1019.2 1017.2 1014.3 1015.7 1016.7 1017.9 1021.9 1022.0 1019.9 ****** MAX. QNH PRESSURE IN HPA ****** 1024.7 1021.3 1022.1 1020.7 1019.2 1023.3 1020.6 1023.8 1024.8 1028.4 1025.7 ****** DAY ** 10 20 12 6 16 30 20 29 5 16 29 MIN. QNH PRESSURE IN HPA ****** 1008.5 1012.6 1015.0 1013.4 1010.0 1009.1 1010.4 1010.2 1016.5 1016.2 1011.8 ****** DAY ** 6 24 21 26 24 11 30 1 1 21 14 MEAN QFF PRESSURE IN HPA ****** 1015.5 1011.2 1007.2 1001.6 996.4 996.7 998.6 1001.4 1011.3 1017.9 1017.5 ****** MAX. QFF PRESSURE IN HPA ****** 1027.9 1020.1 1015.4 1009.8 1003.3 1006.1 1003.6 1008.1 1016.4 1026.8 1026.4 ****** DAY ** 10 3 1 3 16 30 13 29 6 17 16 MIN. QFF PRESSURE IN HPA ****** 1004.0 1002.6 1003.0 994.9 989.4 987.1 991.5 992.0 1002.7 1009.5 1007.9 ****** DAY ** 6 24 20 26 24 11 30 1 1 1 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.6 4.5 10.5 17.1 21.2 25.7 28.4 26.3 22.2 17.3 8.9 6.6 15.8 MINIMUN AIR TEMPERATURE (C) -5.5 -3.1 2.2 8.4 12.2 15.6 19.3 15.9 12.1 8.0 0.6 1.7 7.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 1 9 2 0 0 0 0 12 DAYS WITH MINIMUM TEMP. <=-4 25 13 0 0 0 0 0 0 0 0 4 0 42 DAYS WITH FREEZING MIN.<= 0 28 23 9 0 0 0 0 0 0 0 11 11 82 TEMPERATURE RECORDS LOWEST(C) -14.2 -8.0 -2.8 1.2 7.0 12.4 12.4 10.4 8.2 4.8 -8.6 -3.6 -14.2 DAY 29 1 2 14 5 19 31 1 28 12 25 23 MAXIMUM AIR TEMPERATURE (C) 9.2 12.1 17.9 24.5 28.6 33.2 35.5 33.9 30.1 25.3 17.0 12.3 23.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 13 25 31 31 18 0 0 0 118 DAYS WITH MAXIMUM TEMP. <= 0 2 0 0 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS HIGHEST(C) 16.6 19.0 24.2 27.8 33.6 37.6 40.2 36.2 33.4 29.6 23.2 17.6 40.2 DAY 15 28 31 27 15 30 11 25 1 1 7 31 DIF. BETWEEN (MAX.-MIN.) (C) 14.7 15.2 15.7 16.1 16.4 17.6 16.2 18.0 18.0 17.3 16.4 10.6 16.0 MEAN DAILY TEMP. (MDT) (C) 1.8 4.5 10.0 16.4 20.4 24.4 27.4 24.9 21.1 16.6 8.8 7.0 15.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.3 19.2 102.1 197.3 122.0 29.7 0.0 0.0 0.0 470.6 HEATING DEG. DAYS(BASE 18 0C) 500.8 377.5 246.8 56.0 4.7 0.0 0.0 0.0 1.3 46.0 275.6 341.1 1849.7 DEWPOINT (MEAN C) -6.7 -8.9 -3.6 -4.6 -2.6 2.6 3.5 2.4 0.3 0.2 -5.7 0.5 -1.9 MIXING RATIO (G/KG) 2.95 2.54 3.75 3.47 4.14 5.90 6.21 5.79 4.89 4.87 3.30 5.00 4.40 VAPOUR PRESSURE (HPA) 3.84 3.31 4.87 4.52 5.38 7.62 8.01 7.51 6.36 6.35 4.31 6.52 5.72 SATURATION DEF. (HPA) 3.53 5.69 8.65 15.91 21.23 27.12 32.40 28.50 21.96 14.48 8.08 3.55 15.92 RELATIVE HUMIDITY (MEAN %) 59 42 42 25 23 25 21 23 25 34 39 68 36 RELATIVE HUMIDITY (MAX. %) 83 65 66 41 39 36 31 33 36 49 56 86 52 RELATIVE HUMIDITY (MIN. %) 36 24 26 14 13 17 15 15 16 22 24 46 22 RELATIVE HUMIDITY (MEAN% 03UTC) 79 61 63 40 35 35 30 33 36 48 52 80 49 RELATIVE HUMIDITY (MEAN% 09UTC) 43 30 33 16 17 19 17 17 19 24 30 56 27 RELATIVE HUMIDITY (MEAN% 15UTC) 48 33 31 17 17 18 16 17 21 27 33 62 28 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 3.3 6.1 38.2 0.0 5.8 1.0 0.0 0.0 0.0 0.0 3.6 72.3 130.3 DAYS WITH PRECIPITATION >=10 0 0 2 0 0 0 0 0 0 0 0 3 5 DAYS WITH PRECIPITATION >= 5 0 0 2 0 1 0 0 0 0 0 0 6 9 DAYS WITH PRECIPITATION >= 1 1 2 4 0 1 1 0 0 0 0 1 10 20 DAYS WITH PRECIPITATION 2 5 6 0 3 1 0 0 0 0 3 13 33 GREATEST DAILY PRECIPITATION 3.2 2.9 21.0 0.0 5.3 1.0 0.0 0.0 0.0 0.0 3.0 16.0 21.0 DAY 27 21 10 ** 3 14 ** ** ** ** 13 12 DAY WITH THUNDER STORM 0 0 0 0 1 0 0 0 0 0 0 0 1 DAYS WITH SNOW OR SLEET 2 1 0 0 0 0 0 0 0 0 0 0 3 DAYS WITH DUST 0 0 0 0 3 3 2 1 0 2 0 0 11 WIND DIRECTION (PREVAILING) 45 225 225 270 270 45 45 45 45 270 225 180 45 PREVAILING WIND SPEED(KNOTS) 8.1 14.3 10.4 13.4 15.3 10.9 11.6 9.4 9.2 13.0 16.3 11.8 9.6 PREVAILING WIND PERCENT 8.5 12.5 10.5 20.8 19.8 21.7 24.2 23.0 17.1 16.1 12.1 10.5 11.1 CALMS PERCENT OF WIND 64.5 46.9 56.9 39.2 33.1 35.8 37.9 46.8 48.3 46.0 59.2 58.9 47.8 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 337 238 245 247 245 32 41 25 328 250 228 181 254 VECTOR WIND MAGNITUDE(KNOTS) 0.5 1.7 1.9 4.5 4.8 1.5 2.1 1.7 1.6 2.6 2.4 2.4 1.2 WIND STEADINESES (MEAN %) 16.7 30.4 46.3 64.3 56.5 23.4 32.8 34.7 30.2 46.4 51.1 55.8 21.8 WIND SPEED (MEAN KNOTS) 3.0 5.6 4.1 7.0 8.5 6.4 6.4 4.9 5.3 5.6 4.7 4.3 5.5 FASTEST WIND DIRECTION 240 210 180 270 180 270 120 250 330 270 210 210 210 FASTEST WIND SPEED (KNOTS) 21 39 29 35 43 33 33 39 43 39 68 31 68 DAY 15 18 24 12 11 8 8 31 23 30 18 20 DAYS WITH SKY CLEAR (0-2)/8 22 18 19 14 25 27 26 26 28 26 19 11 261 DAYS WITH P.CLOUDY (3-6)/8 6 7 9 14 4 3 5 5 2 5 11 11 82 DAYS WITH CLOUDY (7-8)/8 3 3 3 2 2 0 0 0 0 0 0 9 22 DAYS WITH VISIBILITY =< 2 KM 0 1 0 0 1 0 0 1 0 0 0 1 4 DURATION OF SUNSHINE HOURS 235.0 234.7 283.8 287.7 339.3 360.4 337.7 358.5 323.5 300.0 236.1 166.9 3463.6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 815.5 814.2 814.4 814.9 813.4 811.0 810.6 814.3 815.8 817.9 817.2 817.9 814.8 MAX. QFE PRESSURE IN HPA 820.3 820.6 822.5 821.9 818.1 817.7 817.1 818.8 821.9 824.2 823.8 823.3 824.2 DAY-HOUR 14- 6 9- 6 1- 6 2- 6 17- 3 2- 6 29- 6 5- 6 22- 6 10- 6 2- 6 9- 6 MIN. QFE PRESSURE IN HPA 808.8 804.7 803.6 809.0 806.9 805.8 804.2 808.7 810.5 813.9 807.1 810.0 803.6 DAY-HOUR 27- 3 21-12 26- 0 9-12 25-15 17-12 17-15 27-12 5-15 18-15 18-18 5- 0 MEAN QNH PRESSURE IN HPA 1019.2 1017.6 1017.8 1018.4 1016.7 1013.8 1013.3 1017.7 1019.5 1022.0 1021.2 1022.0 1018.3 MAX. QNH PRESSURE IN HPA 1024.9 1025.3 1027.5 1026.8 1022.3 1021.8 1021.1 1023.1 1026.8 1029.6 1029.1 1028.5 1029.6 DAY-HOUR 14- 6 9- 6 1- 6 2- 6 17- 3 2- 6 29- 6 5- 6 22- 6 10- 6 2- 6 9- 6 MIN. QNH PRESSURE IN HPA 1011.1 1006.2 1004.9 1011.4 1008.8 1007.5 1005.6 1011.0 1013.2 1017.2 1009.1 1012.6 1004.9 DAY-HOUR 27- 3 21-12 26- 0 9-12 25-15 17-12 17-15 27-12 5-15 18-15 18-18 5- 0 MEAN QFF PRESSURE IN HPA 1020.2 1016.2 1011.7 1007.4 1002.6 996.4 994.0 1000.0 1004.8 1010.8 1016.4 1018.8 1008.3 MAX. QFF PRESSURE IN HPA 1031.7 1027.8 1024.0 1016.9 1010.6 1007.1 1005.2 1007.6 1015.7 1020.1 1027.9 1029.5 1031.7 DAY-HOUR 29- 3 13- 6 2- 3 2- 3 11- 6 2- 3 29- 3 14- 3 22- 3 10- 3 21- 3 18- 6 MIN. QFF PRESSURE IN HPA 1010.0 1001.2 998.2 1000.2 993.5 988.2 985.9 991.8 996.2 1003.1 1001.8 1007.7 985.9 DAY-HOUR 23-21 21- 0 25-12 9-12 25-12 30-12 11-12 27- 9 5-12 2- 0 18-18 5-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 815.4 814.1 814.3 814.8 813.4 811.2 810.8 814.4 815.9 817.9 817.1 817.7 814.8 MAX. QFE PRESSURE IN HPA 818.8 819.2 821.2 820.5 817.8 816.2 815.8 817.4 820.7 822.5 822.2 822.5 822.5 DAY 10 13 2 2 17 3 28 5 23 10 15 29 MIN. QFE PRESSURE IN HPA 809.1 805.8 803.6 809.5 809.1 807.5 806.4 810.5 812.2 814.9 808.1 810.0 803.6 DAY 27 22 26 10 9 18 18 25 6 2 19 5 MEAN QNH PRESSURE IN HPA 1019.1 1017.4 1017.7 1018.3 1016.6 1014.0 1013.5 1017.8 1019.7 1022.1 1021.1 1021.8 1018.3 MAX. QNH PRESSURE IN HPA 1023.1 1023.6 1026.0 1025.1 1021.9 1020.0 1019.5 1021.4 1025.4 1027.5 1027.2 1027.5 1027.5 DAY 10 13 2 2 17 3 28 5 23 10 15 29 MIN. QNH PRESSURE IN HPA 1011.5 1007.5 1004.9 1012.0 1011.5 1009.6 1008.2 1013.2 1015.2 1018.4 1010.3 1012.6 1004.9 DAY 27 22 26 10 9 18 18 25 6 2 19 5 MEAN QFF PRESSURE IN HPA 1019.4 1015.7 1011.3 1007.1 1002.6 996.8 994.2 1000.1 1004.7 1010.4 1015.5 1018.1 1008.0 MAX. QFF PRESSURE IN HPA 1029.8 1025.9 1021.6 1014.8 1008.3 1004.7 1003.0 1005.1 1012.7 1017.2 1025.5 1025.6 1029.8 DAY 29 13 2 2 12 3 27 15 22 11 21 18 MIN. QFF PRESSURE IN HPA 1010.4 1001.2 1000.2 1001.5 994.7 988.7 987.4 993.9 998.0 1003.1 1003.1 1007.9 987.4 DAY 24 21 25 10 26 30 12 26 6 2 19 5 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 815.6 814.5 814.8 815.5 814.1 812.0 811.5 815.2 816.6 818.4 817.5 817.9 815.3 MAX. QFE PRESSURE IN HPA 819.3 819.2 821.4 820.9 818.1 817.4 816.5 818.1 821.0 823.2 822.7 822.2 823.2 DAY 14 13 2 2 17 2 29 5 23 10 4 29 MIN. QFE PRESSURE IN HPA 808.8 806.7 805.1 810.8 809.5 808.2 807.1 811.2 813.2 815.4 809.1 810.6 805.1 DAY 27 21 26 10 9 18 18 27 6 2 19 5 MEAN QNH PRESSURE IN HPA 1019.3 1018.0 1018.3 1019.1 1017.4 1014.9 1014.3 1018.8 1020.5 1022.7 1021.5 1022.0 1018.9 MAX. QNH PRESSURE IN HPA 1023.7 1023.6 1026.2 1025.6 1022.3 1021.4 1020.3 1022.3 1025.7 1028.4 1027.8 1027.2 1028.4 DAY 14 13 2 2 17 2 29 5 23 10 4 29 MIN. QNH PRESSURE IN HPA 1011.1 1008.6 1006.7 1013.5 1012.0 1010.4 1009.1 1014.0 1016.4 1019.0 1011.5 1013.3 1006.7 DAY 27 21 26 10 9 18 18 27 6 2 19 5 MEAN QFF PRESSURE IN HPA 1021.5 1018.0 1013.5 1009.6 1004.5 998.8 996.3 1002.7 1007.5 1013.2 1018.2 1019.8 1010.3 MAX. QFF PRESSURE IN HPA 1031.7 1027.5 1024.0 1016.9 1010.5 1007.1 1005.2 1007.6 1015.7 1020.1 1027.9 1027.7 1031.7 DAY 29 13 2 2 12 2 29 14 22 10 21 18 MIN. QFF PRESSURE IN HPA 1011.9 1003.3 1000.8 1003.6 996.1 992.3 989.9 996.9 1000.0 1007.3 1005.7 1010.1 989.9 DAY 4 21 25 26 26 30 11 27 6 2 19 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 816.7 815.5 815.7 816.2 814.6 812.3 811.9 815.7 817.4 819.3 818.5 819.1 816.1 MAX. QFE PRESSURE IN HPA 820.3 820.6 822.5 821.9 818.1 817.7 817.1 818.8 821.9 824.2 823.8 823.3 824.2 DAY 14 9 1 2 17 2 29 5 22 10 2 9 MIN. QFE PRESSURE IN HPA 810.7 806.7 806.0 811.8 810.0 808.7 807.6 811.2 814.1 816.3 809.6 811.6 806.0 DAY 27 21 26 9 26 18 18 27 1 31 18 5 MEAN QNH PRESSURE IN HPA 1020.6 1019.2 1019.4 1020.0 1018.1 1015.3 1014.9 1019.4 1021.4 1023.7 1022.7 1023.4 1019.8 MAX. QNH PRESSURE IN HPA 1024.9 1025.3 1027.5 1026.8 1022.3 1021.8 1021.1 1023.1 1026.8 1029.6 1029.1 1028.5 1029.6 DAY 14 9 1 2 17 2 29 5 22 10 2 9 MIN. QNH PRESSURE IN HPA 1013.4 1008.6 1007.8 1014.7 1012.6 1011.0 1009.7 1014.0 1017.5 1020.1 1012.1 1014.5 1007.8 DAY 27 21 26 9 26 18 18 27 1 31 18 5 MEAN QFF PRESSURE IN HPA 1022.0 1018.1 1013.2 1008.5 1003.5 997.5 995.0 1001.2 1006.0 1012.0 1018.0 1020.8 1009.7 MAX. QFF PRESSURE IN HPA 1031.0 1027.8 1023.7 1015.5 1010.6 1005.3 1003.4 1006.3 1015.4 1018.5 1027.5 1029.5 1031.0 DAY 29 13 2 2 11 2 29 14 22 11 21 18 MIN. QFF PRESSURE IN HPA 1012.9 1003.7 1002.6 1001.6 995.7 991.0 988.1 994.3 998.9 1006.1 1005.3 1010.0 988.1 DAY 4 21 23 26 25 30 9 27 1 1 18 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 815.8 814.5 814.8 815.2 813.7 811.3 810.9 814.7 816.2 818.0 817.4 818.1 815.0 MAX. QFE PRESSURE IN HPA 819.6 819.7 821.7 821.0 817.0 817.0 816.3 818.1 820.8 823.2 822.9 822.6 823.2 DAY 14 9 1 1 16 2 27 5 22 10 2 28 MIN. QFE PRESSURE IN HPA 810.9 805.1 806.4 810.7 809.1 807.7 806.8 809.9 812.9 815.3 809.3 811.3 805.1 DAY 19 21 25 9 25 17 18 27 5 31 18 5 MEAN QNH PRESSURE IN HPA 1019.5 1018.0 1018.3 1018.8 1017.0 1014.1 1013.7 1018.2 1019.9 1022.2 1021.4 1022.2 1018.6 MAX. QNH PRESSURE IN HPA 1024.1 1024.2 1026.6 1025.7 1020.9 1020.9 1020.1 1022.3 1025.5 1028.4 1028.0 1027.7 1028.4 DAY 14 9 1 1 16 2 27 5 22 10 2 28 MIN. QNH PRESSURE IN HPA 1013.6 1006.7 1008.2 1013.4 1011.5 1009.8 1008.7 1012.4 1016.0 1018.9 1011.7 1014.1 1006.7 DAY 19 21 25 9 25 17 18 27 5 31 18 5 MEAN QFF PRESSURE IN HPA 1019.6 1015.9 1011.5 1007.1 1002.5 996.1 993.7 999.7 1004.4 1009.9 1015.6 1018.4 1007.9 MAX. QFF PRESSURE IN HPA 1029.2 1025.3 1020.8 1013.9 1008.7 1003.8 1003.0 1005.4 1012.5 1017.1 1024.6 1027.1 1029.2 DAY 29 12 1 2 2 2 27 14 22 10 20 18 MIN. QFF PRESSURE IN HPA 1011.3 1002.6 1001.1 1001.7 994.1 990.2 986.8 991.8 998.3 1003.9 1004.4 1009.8 986.8 DAY 19 21 23 9 25 30 10 27 1 1 18 5 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 814.5 813.2 813.1 813.7 812.3 809.8 809.4 813.2 814.5 816.6 816.1 816.8 813.6 MAX. QFE PRESSURE IN HPA 817.9 818.5 820.1 819.2 815.2 815.3 814.9 816.9 819.0 821.8 821.3 821.1 821.8 DAY 14 10 1 1 12 2 27 14 22 10 2 28 MIN. QFE PRESSURE IN HPA 810.0 804.7 803.8 809.0 807.4 805.8 804.9 808.7 810.8 814.2 807.2 810.2 803.8 DAY 19 21 25 9 25 17 17 27 5 18 18 5 MEAN QNH PRESSURE IN HPA 1018.0 1016.4 1016.3 1016.9 1015.3 1012.3 1011.8 1016.4 1017.9 1020.5 1019.8 1020.8 1016.9 MAX. QNH PRESSURE IN HPA 1022.0 1022.7 1024.7 1023.6 1018.8 1018.9 1018.4 1020.8 1023.3 1026.7 1026.1 1025.9 1026.7 DAY 14 10 1 1 12 2 27 14 22 10 2 28 MIN. QNH PRESSURE IN HPA 1012.6 1006.2 1005.1 1011.4 1009.4 1007.5 1006.4 1011.0 1013.5 1017.6 1009.2 1012.8 1005.1 DAY 19 21 25 9 25 17 17 27 5 18 18 5 MEAN QFF PRESSURE IN HPA 1018.3 1014.4 1009.8 1005.7 1001.2 994.9 992.4 998.6 1002.8 1008.7 1014.2 1016.8 1006.5 MAX. QFF PRESSURE IN HPA 1027.1 1022.6 1019.9 1013.5 1006.5 1002.8 1002.2 1004.4 1011.3 1016.3 1023.8 1025.5 1027.1 DAY 29 12 1 1 12 2 27 14 22 10 20 18 MIN. QFF PRESSURE IN HPA 1011.1 1002.0 998.2 1000.2 993.5 988.2 985.9 992.0 996.2 1004.0 1002.1 1007.7 985.9 DAY 19 21 25 9 25 30 11 27 5 1 18 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 815.0 813.4 813.4 813.7 812.4 809.4 809.0 812.9 814.4 817.0 816.6 817.5 813.7 MAX. QFE PRESSURE IN HPA 818.4 818.5 820.5 818.9 815.6 814.5 814.5 816.1 820.2 821.8 821.1 821.6 821.8 DAY 14 9 1 1 12 2 27 14 23 10 14 9 MIN. QFE PRESSURE IN HPA 810.5 805.4 805.0 809.4 806.9 806.1 804.2 809.0 810.5 813.9 807.5 811.3 804.2 DAY 26 21 25 9 25 17 17 27 5 18 18 5 MEAN QNH PRESSURE IN HPA 1018.5 1016.6 1016.6 1017.0 1015.4 1011.9 1011.4 1016.0 1017.9 1020.9 1020.5 1021.5 1017.0 MAX. QNH PRESSURE IN HPA 1022.6 1022.7 1025.1 1023.2 1019.3 1018.0 1018.0 1019.9 1024.8 1026.7 1025.9 1026.5 1026.7 DAY 14 9 1 1 12 2 27 14 23 10 14 9 MIN. QNH PRESSURE IN HPA 1013.2 1007.0 1006.6 1011.8 1008.8 1007.9 1005.6 1011.4 1013.2 1017.2 1009.6 1014.1 1005.6 DAY 26 21 25 9 25 17 17 27 5 18 18 5 MEAN QFF PRESSURE IN HPA 1020.6 1016.3 1011.6 1007.4 1002.4 995.5 993.2 999.7 1004.7 1011.4 1017.1 1019.1 1008.3 MAX. QFF PRESSURE IN HPA 1029.7 1023.8 1022.0 1014.7 1008.4 1002.8 1002.5 1004.8 1014.6 1018.4 1027.3 1026.0 1029.7 DAY 29 12 1 1 12 2 27 14 23 10 20 17 MIN. QFF PRESSURE IN HPA 1013.6 1004.9 1001.8 1002.1 994.0 989.2 987.0 994.4 997.8 1007.3 1004.4 1010.8 987.0 DAY 4 21 24 9 25 30 11 26 5 6 18 5 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 815.8 814.1 814.4 814.9 813.6 810.8 810.5 814.1 815.7 818.1 817.3 818.0 814.8 MAX. QFE PRESSURE IN HPA 819.3 819.7 821.2 820.2 817.1 815.3 815.6 816.9 820.9 822.7 822.2 822.0 822.7 DAY 14 9 1 4 16 2 28 5 23 10 14 28 MIN. QFE PRESSURE IN HPA 810.8 805.8 803.7 810.0 809.1 807.3 805.5 810.6 811.6 815.2 807.1 811.4 803.7 DAY 26 21 25 9 25 17 17 27 5 18 18 5 MEAN QNH PRESSURE IN HPA 1019.5 1017.5 1017.8 1018.4 1016.8 1013.5 1013.2 1017.4 1019.4 1022.2 1021.4 1022.1 1018.3 MAX. QNH PRESSURE IN HPA 1023.7 1024.2 1026.0 1024.8 1021.1 1018.9 1019.3 1020.8 1025.6 1027.8 1027.2 1026.9 1027.8 DAY 14 9 1 4 16 2 28 5 23 10 14 28 MIN. QNH PRESSURE IN HPA 1013.5 1007.5 1005.0 1012.6 1011.5 1009.3 1007.2 1013.3 1014.5 1018.8 1009.1 1014.2 1005.0 DAY 26 21 25 9 25 17 17 27 5 18 18 5 MEAN QFF PRESSURE IN HPA 1020.8 1016.3 1011.5 1006.9 1002.2 995.6 993.4 999.1 1004.0 1010.6 1016.7 1019.5 1008.0 MAX. QFF PRESSURE IN HPA 1028.9 1026.2 1022.3 1013.7 1008.5 1002.0 1001.9 1004.3 1012.4 1017.2 1027.0 1027.7 1028.9 DAY 28 12 1 1 11 13 31 14 23 10 20 17 MIN. QFF PRESSURE IN HPA 1012.9 1003.9 1001.1 1001.1 994.3 989.1 986.5 993.6 996.2 1004.5 1001.8 1011.5 986.5 DAY 19 18 25 9 29 29 10 27 5 1 18 5 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 815.7 814.2 814.5 815.1 813.7 811.3 811.1 814.5 816.1 818.0 817.4 817.9 814.9 MAX. QFE PRESSURE IN HPA 819.3 819.8 821.2 820.8 818.0 816.0 815.9 817.4 820.7 822.7 823.0 822.3 823.0 DAY 14 28 1 1 16 2 26 4 22 10 14 28 MIN. QFE PRESSURE IN HPA 810.2 805.8 804.2 809.5 809.1 807.8 806.4 810.5 812.2 814.9 807.6 810.8 804.2 DAY 26 21 25 9 25 17 17 24 5 1 18 4 MEAN QNH PRESSURE IN HPA 1019.3 1017.6 1018.0 1018.6 1017.0 1014.2 1013.9 1017.9 1019.9 1022.2 1021.4 1022.0 1018.5 MAX. QNH PRESSURE IN HPA 1023.7 1024.3 1026.0 1025.5 1022.1 1019.7 1019.6 1021.4 1025.4 1027.8 1028.1 1027.3 1028.1 DAY 14 28 1 1 16 2 26 4 22 10 14 28 MIN. QNH PRESSURE IN HPA 1012.8 1007.5 1005.6 1012.0 1011.5 1009.9 1008.2 1013.2 1015.2 1018.4 1009.7 1013.5 1005.6 DAY 26 21 25 9 25 17 17 24 5 1 18 4 MEAN QFF PRESSURE IN HPA 1019.6 1015.4 1011.0 1006.9 1002.4 996.1 994.0 999.4 1004.4 1010.1 1015.8 1018.2 1007.8 MAX. QFF PRESSURE IN HPA 1030.2 1026.1 1020.7 1014.4 1008.9 1003.6 1003.2 1004.7 1011.8 1017.2 1026.2 1026.4 1030.2 DAY 28 12 1 1 11 12 31 14 22 10 20 17 MIN. QFF PRESSURE IN HPA 1010.0 1003.7 1000.6 1001.2 994.1 989.5 986.5 993.8 997.2 1003.3 1002.2 1009.5 986.5 DAY 23 20 24 9 29 29 10 26 5 1 18 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.8 5.9 10.2 14.4 20.1 24.9 27.4 27.2 23.3 16.6 8.4 4.2 15.5 MINIMUN AIR TEMPERATURE (C) -2.7 -1.3 2.2 8.0 10.0 15.0 17.7 16.1 12.3 6.3 2.2 -1.1 7.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH MINIMUM TEMP. <=-4 12 11 3 0 0 0 0 0 0 0 4 9 39 DAYS WITH FREEZING MIN.<= 0 23 17 10 0 0 0 0 0 0 0 10 17 77 TEMPERATURE RECORDS LOWEST(C) -8.8 -9.0 -5.6 2.0 5.0 10.0 14.0 12.2 7.8 1.0 -5.0 -9.0 -9.0 DAY 26 5 8 6 7 8 1 30 30 26 30 24 MAXIMUM AIR TEMPERATURE (C) 8.6 12.8 17.5 20.4 27.8 32.1 34.6 35.3 31.9 25.5 14.5 9.9 22.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 14 25 31 31 24 0 0 0 125 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 15.4 17.8 23.6 27.6 32.2 35.4 37.8 37.2 34.4 29.4 22.0 15.4 37.8 DAY 7 24 14 28 31 18 19 21 2 7 12 7 DIF. BETWEEN (MAX.-MIN.) (C) 11.3 14.1 15.3 12.4 17.8 17.1 16.9 19.2 19.6 19.2 12.3 11.0 15.5 MEAN DAILY TEMP. (MDT) (C) 3.0 5.7 9.9 14.2 18.9 23.6 26.1 25.7 22.1 15.9 8.3 4.4 14.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 5.7 78.5 159.4 146.1 44.7 0.0 0.0 0.0 434.4 HEATING DEG. DAYS(BASE 18 0C) 466.3 343.5 252.1 119.8 19.5 0.0 0.0 0.0 0.6 68.9 289.7 421.5 1982.0 DEWPOINT (MEAN C) -5.7 -6.7 -5.8 -0.8 0.3 0.9 3.3 1.2 -1.5 -3.5 -0.8 -3.7 -1.9 MIXING RATIO (G/KG) 3.22 2.98 3.28 4.67 5.02 5.16 6.14 5.35 4.28 3.69 4.58 3.75 4.34 VAPOUR PRESSURE (HPA) 4.19 3.88 4.27 6.06 6.52 6.68 7.94 6.92 5.57 4.82 5.98 4.88 5.64 SATURATION DEF. (HPA) 3.65 6.05 8.94 11.21 18.50 26.24 30.22 31.14 25.05 15.59 5.68 3.77 15.50 RELATIVE HUMIDITY (MEAN %) 58 44 36 40 30 22 23 20 20 27 56 60 36 RELATIVE HUMIDITY (MAX. %) 81 67 60 62 47 35 35 32 32 40 79 81 54 RELATIVE HUMIDITY (MIN. %) 35 25 20 23 18 14 14 13 13 16 36 39 22 RELATIVE HUMIDITY (MEAN% 03UTC) 75 62 54 58 45 34 34 32 31 40 72 75 51 RELATIVE HUMIDITY (MEAN% 09UTC) 42 33 26 30 22 16 18 15 15 19 44 46 27 RELATIVE HUMIDITY (MEAN% 15UTC) 49 33 26 31 21 16 16 14 14 20 46 51 28 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 52.9 7.9 24.2 23.4 0.7 0.0 0.0 0.0 0.0 0.0 17.0 20.0 146.1 DAYS WITH PRECIPITATION >=10 2 0 2 1 0 0 0 0 0 0 0 0 5 DAYS WITH PRECIPITATION >= 5 3 1 2 2 0 0 0 0 0 0 2 2 12 DAYS WITH PRECIPITATION >= 1 3 2 3 4 0 0 0 0 0 0 3 5 20 DAYS WITH PRECIPITATION 6 3 4 7 2 0 1 0 0 1 5 9 38 GREATEST DAILY PRECIPITATION 28.0 6.6 13.0 10.0 0.4 0.0 0.0 0.0 0.0 0.0 9.0 6.0 28.0 DAY 11 14 28 2 12 ** ** ** ** ** 6 10 DAY WITH THUNDER STORM 0 0 0 1 0 0 0 0 0 0 0 0 1 DAYS WITH SNOW OR SLEET 2 1 0 0 0 0 0 0 0 0 0 1 4 DAYS WITH DUST 0 0 5 5 4 0 0 0 0 1 1 3 19 WIND DIRECTION (PREVAILING) 225 270 225 270 225 270 45 45 45 45 225 225 225 PREVAILING WIND SPEED(KNOTS) 14.9 11.8 14.3 15.7 15.0 14.5 11.9 9.0 5.9 5.7 10.3 12.5 13.8 PREVAILING WIND PERCENT 11.7 14.7 17.7 20.0 19.4 15.4 19.0 14.1 14.2 8.5 8.3 14.9 10.8 CALMS PERCENT OF WIND 58.5 54.5 45.6 39.2 40.7 46.3 48.8 57.3 71.7 70.6 70.8 57.3 55.1 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 224 253 222 236 249 265 22 10 35 265 293 225 244 VECTOR WIND MAGNITUDE(KNOTS) 2.6 3.2 3.2 6.0 5.6 1.6 1.5 0.6 0.8 0.2 0.5 3.3 1.9 WIND STEADINESES (MEAN %) 57.8 59.3 46.4 69.0 70.0 24.2 25.9 15.0 42.1 9.5 20.0 66.0 37.3 WIND SPEED (MEAN KNOTS) 4.5 5.4 6.9 8.7 8.0 6.6 5.8 4.0 1.9 2.1 2.5 5.0 5.1 FASTEST WIND DIRECTION 220 170 210 270 250 240 60 260 240 210 240 210 250 FASTEST WIND SPEED (KNOTS) 35 39 43 43 49 39 29 33 39 27 23 45 49 DAY 7 12 20 25 10 6 6 28 4 21 29 21 DAYS WITH SKY CLEAR (0-2)/8 20 14 17 13 24 28 27 26 26 22 16 17 250 DAYS WITH P.CLOUDY (3-6)/8 7 13 11 12 6 2 4 5 4 9 10 11 94 DAYS WITH CLOUDY (7-8)/8 4 1 3 5 1 0 0 0 0 0 4 3 21 DAYS WITH VISIBILITY =< 2 KM 3 0 1 0 1 0 0 0 0 0 0 1 6 DURATION OF SUNSHINE HOURS 232.2 239.8 274.1 239.1 348.2 365.5 352.4 345.3 313.2 288.1 217.5 214.8 3430.2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 815.0 815.6 814.7 813.2 813.9 812.3 812.1 811.8 816.4 818.6 818.2 815.0 814.7 MAX. QFE PRESSURE IN HPA 822.6 824.8 824.9 820.2 818.5 817.8 816.7 816.4 821.7 824.5 825.3 823.3 825.3 DAY-HOUR 26- 6 6- 6 11- 6 1- 6 10- 9 25- 6 3- 6 31- 6 21- 6 10- 6 18- 6 3- 6 MIN. QFE PRESSURE IN HPA 807.0 810.0 807.2 803.4 809.1 806.2 807.7 807.0 811.1 814.6 812.1 805.4 803.4 DAY-HOUR 21-15 25- 0 28-15 3- 9 4-12 21-12 23-15 17-12 18-12 29-12 25-12 21-15 MEAN QNH PRESSURE IN HPA 1018.6 1019.3 1018.2 1016.4 1017.2 1015.3 1015.1 1014.7 1020.2 1022.9 1022.4 1018.5 1018.2 MAX. QNH PRESSURE IN HPA 1027.7 1030.3 1030.4 1024.8 1022.7 1021.9 1020.6 1020.2 1026.6 1029.9 1030.9 1028.5 1030.9 DAY-HOUR 26- 6 6- 6 11- 6 1- 6 10- 9 25- 6 3- 6 31- 6 21- 6 10- 6 18- 6 3- 6 MIN. QNH PRESSURE IN HPA 1009.0 1012.6 1009.2 1004.6 1011.5 1008.0 1009.8 1009.0 1013.9 1018.1 1015.1 1007.0 1004.6 DAY-HOUR 21-15 25- 0 28-15 3- 9 4-12 21-12 23-15 17-12 18-12 29-12 25-12 21-15 MEAN QFF PRESSURE IN HPA 1018.5 1016.8 1012.4 1007.2 1003.9 998.6 996.4 996.3 1004.7 1012.3 1017.8 1017.3 1008.5 MAX. QFF PRESSURE IN HPA 1030.7 1033.2 1029.2 1018.0 1010.2 1006.2 1004.8 1004.8 1014.0 1019.2 1028.3 1030.1 1033.2 DAY-HOUR 26- 3 6- 6 11- 3 1- 3 9- 3 25- 6 31- 3 31- 3 30- 3 26- 3 19- 6 30- 3 MIN. QFF PRESSURE IN HPA 1004.4 1004.7 1000.1 995.5 996.2 990.6 990.3 990.3 997.8 1006.0 1005.7 1001.4 990.3 DAY-HOUR 7-21 25- 0 28-18 3- 9 21-12 20-12 22-12 8-12 5-12 14-21 12-21 21-15 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 815.0 815.4 814.5 812.9 813.8 812.5 812.1 811.8 816.4 818.7 818.1 814.9 814.7 MAX. QFE PRESSURE IN HPA 821.0 823.0 823.2 817.3 816.9 816.0 815.6 815.3 819.9 822.5 823.7 821.8 823.7 DAY 28 6 11 1 11 25 30 30 23 11 19 30 MIN. QFE PRESSURE IN HPA 807.3 810.0 808.2 804.7 810.8 807.5 809.3 808.6 813.0 815.6 812.9 805.7 804.7 DAY 12 25 29 4 13 21 23 18 18 22 26 22 MEAN QNH PRESSURE IN HPA 1018.5 1019.1 1018.0 1016.1 1017.1 1015.5 1015.1 1014.8 1020.2 1023.0 1022.3 1018.4 1018.2 MAX. QNH PRESSURE IN HPA 1025.7 1028.1 1028.4 1021.3 1020.8 1019.7 1019.3 1018.9 1024.4 1027.5 1029.0 1026.7 1029.0 DAY 28 6 11 1 11 25 30 30 23 11 19 30 MIN. QNH PRESSURE IN HPA 1009.3 1012.6 1010.4 1006.2 1013.5 1009.6 1011.7 1010.9 1016.2 1019.3 1016.0 1007.4 1006.2 DAY 12 25 29 4 13 21 23 18 18 22 26 22 MEAN QFF PRESSURE IN HPA 1017.6 1016.2 1011.8 1006.7 1004.2 998.8 996.5 996.5 1004.5 1012.1 1017.1 1016.6 1008.2 MAX. QFF PRESSURE IN HPA 1028.6 1030.2 1025.4 1015.5 1008.5 1003.1 1002.7 1003.0 1011.4 1016.6 1026.9 1028.9 1030.2 DAY 25 6 11 1 11 25 31 30 30 27 19 30 MIN. QFF PRESSURE IN HPA 1005.3 1004.7 1003.2 998.4 998.0 990.6 992.7 991.7 999.0 1006.5 1006.1 1004.1 990.6 DAY 8 25 27 3 21 19 23 7 6 15 13 22 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 815.2 815.7 815.0 813.5 814.4 813.3 813.0 812.7 817.2 819.3 818.4 814.9 815.2 MAX. QFE PRESSURE IN HPA 821.3 823.6 823.7 818.7 817.2 816.6 816.4 815.6 820.7 823.4 823.8 821.6 823.8 DAY 26 6 11 1 24 25 31 31 22 10 18 3 MIN. QFE PRESSURE IN HPA 808.1 810.6 809.6 805.7 811.2 808.1 809.9 809.4 813.7 816.6 812.9 806.6 805.7 DAY 22 25 21 3 13 21 23 17 10 15 26 21 MEAN QNH PRESSURE IN HPA 1018.8 1019.4 1018.5 1016.7 1017.8 1016.5 1016.2 1015.8 1021.2 1023.7 1022.6 1018.5 1018.8 MAX. QNH PRESSURE IN HPA 1026.1 1028.9 1029.0 1023.0 1021.2 1020.5 1020.2 1019.3 1025.4 1028.6 1029.1 1026.5 1029.1 DAY 26 6 11 1 24 25 31 31 22 10 18 3 MIN. QNH PRESSURE IN HPA 1010.3 1013.3 1012.1 1007.4 1014.0 1010.3 1012.4 1011.8 1017.0 1020.5 1016.0 1008.5 1007.4 DAY 22 25 21 3 13 21 23 17 10 15 26 21 MEAN QFF PRESSURE IN HPA 1019.6 1018.0 1013.9 1008.5 1005.8 1000.9 998.8 999.1 1007.5 1015.0 1019.0 1018.2 1010.4 MAX. QFF PRESSURE IN HPA 1030.7 1032.2 1029.2 1018.0 1010.2 1005.3 1004.8 1004.8 1014.0 1019.2 1028.3 1030.1 1032.2 DAY 26 6 11 1 9 25 31 31 30 26 19 30 MIN. QFF PRESSURE IN HPA 1006.8 1006.6 1004.7 999.6 999.3 993.1 994.7 994.6 1001.5 1010.6 1007.9 1002.3 993.1 DAY 8 25 28 3 21 19 23 7 6 15 13 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 816.2 816.8 816.0 814.0 814.9 813.7 813.5 813.2 818.0 820.3 819.6 816.1 816.0 MAX. QFE PRESSURE IN HPA 822.6 824.8 824.9 820.2 818.0 817.8 816.7 816.4 821.7 824.5 825.3 823.3 825.3 DAY 26 6 11 1 25 25 3 31 21 10 18 3 MIN. QFE PRESSURE IN HPA 809.8 811.4 810.5 804.9 811.3 808.2 810.6 809.5 814.6 817.5 814.3 806.9 804.9 DAY 22 25 29 3 4 21 23 17 10 30 26 21 MEAN QNH PRESSURE IN HPA 1020.0 1020.7 1019.8 1017.3 1018.4 1017.0 1016.8 1016.4 1022.2 1024.9 1024.1 1019.8 1019.8 MAX. QNH PRESSURE IN HPA 1027.7 1030.3 1030.4 1024.8 1022.1 1021.9 1020.6 1020.2 1026.6 1029.9 1030.9 1028.5 1030.9 DAY 26 6 11 1 25 25 3 31 21 10 18 3 MIN. QNH PRESSURE IN HPA 1012.3 1014.2 1013.2 1006.4 1014.1 1010.4 1013.3 1012.0 1018.1 1021.5 1017.7 1008.8 1006.4 DAY 22 25 29 3 4 21 23 17 10 30 26 21 MEAN QFF PRESSURE IN HPA 1020.5 1018.6 1014.0 1007.9 1004.4 999.7 997.7 997.4 1006.2 1014.1 1019.8 1019.0 1009.9 MAX. QFF PRESSURE IN HPA 1030.6 1033.2 1028.5 1017.4 1008.3 1006.2 1004.2 1002.4 1012.8 1019.0 1028.3 1029.5 1033.2 DAY 27 6 11 1 9 25 30 30 30 26 19 30 MIN. QFF PRESSURE IN HPA 1008.8 1006.1 1003.9 998.2 997.8 993.3 993.4 993.0 1000.6 1009.3 1010.2 1002.6 993.0 DAY 8 25 28 3 21 19 23 8 5 15 12 21 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 815.3 816.0 815.2 813.3 814.2 812.7 812.5 812.1 816.8 818.8 818.4 815.1 815.0 MAX. QFE PRESSURE IN HPA 821.6 823.7 824.1 820.0 818.5 816.5 815.8 815.0 820.6 823.2 824.4 822.3 824.4 DAY 26 6 11 1 10 25 30 31 21 10 18 3 MIN. QFE PRESSURE IN HPA 809.5 810.9 809.7 803.4 810.1 807.1 809.0 808.5 813.3 815.6 813.9 807.1 803.4 DAY 21 25 18 3 4 21 24 17 18 21 12 21 MEAN QNH PRESSURE IN HPA 1018.9 1019.7 1018.8 1016.5 1017.5 1015.8 1015.6 1015.1 1020.7 1023.1 1022.6 1018.7 1018.6 MAX. QNH PRESSURE IN HPA 1026.5 1029.0 1029.5 1024.5 1022.7 1020.3 1019.5 1018.6 1025.3 1028.4 1029.8 1027.3 1029.8 DAY 26 6 11 1 10 25 30 31 21 10 18 3 MIN. QNH PRESSURE IN HPA 1012.0 1013.6 1012.2 1004.6 1012.7 1009.1 1011.4 1010.8 1016.5 1019.3 1017.2 1009.1 1004.6 DAY 21 25 18 3 4 21 24 17 18 21 12 21 MEAN QFF PRESSURE IN HPA 1018.1 1016.5 1012.3 1006.8 1003.5 998.4 996.3 995.9 1004.1 1011.2 1017.3 1016.7 1008.1 MAX. QFF PRESSURE IN HPA 1028.5 1029.5 1026.1 1017.0 1009.7 1004.2 1002.4 1001.1 1010.4 1015.2 1026.4 1026.6 1029.5 DAY 26 6 11 1 10 25 30 30 23 10 19 30 MIN. QFF PRESSURE IN HPA 1008.8 1006.4 1003.5 995.5 997.5 992.2 991.0 991.3 999.3 1007.0 1006.8 1003.7 991.0 DAY 8 25 18 3 21 19 24 17 6 15 12 21 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 814.0 814.5 813.6 812.4 812.9 811.2 810.9 810.5 815.0 817.2 817.0 814.0 813.6 MAX. QFE PRESSURE IN HPA 820.2 821.3 821.5 817.7 817.4 814.9 814.5 813.4 819.0 821.6 823.1 820.9 823.1 DAY 26 6 11 1 10 25 30 29 21 10 18 3 MIN. QFE PRESSURE IN HPA 807.2 810.3 807.9 803.8 809.1 806.2 807.9 807.0 811.1 814.6 812.1 806.2 803.8 DAY 21 25 28 3 4 21 23 17 18 29 25 21 MEAN QNH PRESSURE IN HPA 1017.4 1018.0 1016.9 1015.4 1016.1 1014.0 1013.6 1013.2 1018.5 1021.2 1021.0 1017.4 1016.9 MAX. QNH PRESSURE IN HPA 1024.8 1026.1 1026.3 1021.8 1021.4 1018.4 1018.0 1016.6 1023.3 1026.5 1028.3 1025.6 1028.3 DAY 26 6 11 1 10 25 30 29 21 10 18 3 MIN. QNH PRESSURE IN HPA 1009.2 1012.9 1010.0 1005.1 1011.5 1008.0 1010.0 1009.0 1013.9 1018.1 1015.1 1008.0 1005.1 DAY 21 25 28 3 4 21 23 17 18 29 25 21 MEAN QFF PRESSURE IN HPA 1016.5 1014.9 1010.6 1006.1 1003.0 997.2 995.0 994.8 1002.8 1010.3 1015.8 1015.5 1006.9 MAX. QFF PRESSURE IN HPA 1026.3 1027.0 1023.4 1014.6 1008.4 1002.1 1001.0 999.9 1010.5 1014.3 1024.4 1025.3 1027.0 DAY 27 5 11 1 9 25 31 31 29 9 18 30 MIN. QFF PRESSURE IN HPA 1006.5 1005.8 1002.3 996.2 996.2 990.6 990.3 990.3 997.8 1007.4 1006.1 1004.3 990.3 DAY 7 25 28 3 21 20 22 8 5 15 12 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 814.5 814.9 813.8 812.5 812.9 810.9 810.5 810.2 814.9 817.5 817.5 814.6 813.7 MAX. QFE PRESSURE IN HPA 820.8 822.0 822.1 817.7 817.5 814.5 814.3 813.2 818.7 821.9 823.3 821.2 823.3 DAY 27 6 11 1 10 5 30 29 29 10 18 3 MIN. QFE PRESSURE IN HPA 807.0 810.4 807.2 805.0 809.7 806.3 807.7 807.1 811.3 815.3 812.2 805.4 805.0 DAY 21 25 28 3 4 20 23 17 18 14 25 21 MEAN QNH PRESSURE IN HPA 1017.9 1018.4 1017.1 1015.6 1016.1 1013.6 1013.1 1012.9 1018.5 1021.5 1021.5 1018.1 1017.0 MAX. QNH PRESSURE IN HPA 1025.5 1026.9 1027.1 1021.8 1021.5 1018.0 1017.7 1016.4 1023.0 1026.8 1028.5 1026.0 1028.5 DAY 27 6 11 1 10 5 30 29 29 10 18 3 MIN. QNH PRESSURE IN HPA 1009.0 1013.0 1009.2 1006.6 1012.2 1008.1 1009.8 1009.1 1014.1 1018.9 1015.2 1007.0 1006.6 DAY 21 25 28 3 4 20 23 17 18 14 25 21 MEAN QFF PRESSURE IN HPA 1018.8 1016.8 1012.4 1007.4 1003.8 997.9 995.6 996.0 1004.7 1012.7 1018.0 1017.7 1008.5 MAX. QFF PRESSURE IN HPA 1029.3 1029.0 1026.6 1015.2 1008.9 1002.9 1001.7 1002.0 1012.2 1016.7 1026.3 1027.8 1029.3 DAY 27 6 11 1 10 25 31 31 29 27 18 30 MIN. QFF PRESSURE IN HPA 1008.8 1007.2 1002.1 1000.1 998.3 992.4 991.2 991.4 999.7 1010.3 1007.8 1001.4 991.2 DAY 7 25 28 3 21 20 22 7 9 14 12 21 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 815.1 815.9 814.8 813.6 814.1 812.1 811.8 811.6 816.3 818.6 818.3 815.2 814.8 MAX. QFE PRESSURE IN HPA 821.1 822.7 822.5 818.6 817.4 815.6 816.7 815.2 819.8 822.4 824.1 821.4 824.1 DAY 27 6 11 1 10 25 29 31 29 10 18 3 MIN. QFE PRESSURE IN HPA 808.3 811.6 807.8 805.7 811.0 807.1 809.0 808.5 812.7 815.9 813.1 806.3 805.7 DAY 21 13 28 3 4 20 22 6 10 21 25 21 MEAN QNH PRESSURE IN HPA 1018.7 1019.6 1018.4 1016.9 1017.5 1015.0 1014.8 1014.5 1020.1 1022.8 1022.5 1018.8 1018.3 MAX. QNH PRESSURE IN HPA 1025.9 1027.8 1027.5 1022.9 1021.4 1019.3 1020.6 1018.8 1024.3 1027.4 1029.5 1026.2 1029.5 DAY 27 6 11 1 10 25 29 31 29 10 18 3 MIN. QNH PRESSURE IN HPA 1010.5 1014.5 1009.9 1007.4 1013.8 1009.1 1011.4 1010.8 1015.8 1019.6 1016.3 1008.1 1007.4 DAY 21 13 28 3 4 20 22 6 10 21 25 21 MEAN QFF PRESSURE IN HPA 1019.2 1017.4 1012.5 1007.4 1003.3 997.7 995.7 995.5 1004.2 1012.1 1018.3 1017.9 1008.4 MAX. QFF PRESSURE IN HPA 1029.7 1030.8 1026.0 1013.4 1006.7 1003.2 1003.5 1001.4 1012.6 1016.2 1027.1 1026.6 1030.8 DAY 27 5 11 1 8 25 29 29 30 25 18 29 MIN. QFF PRESSURE IN HPA 1007.9 1008.5 1000.1 999.2 999.0 992.0 991.5 990.4 998.3 1007.8 1007.8 1002.8 990.4 DAY 7 25 28 19 21 20 22 6 5 14 12 21 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 815.0 815.7 814.9 813.4 814.2 812.6 812.4 812.0 816.5 818.8 818.3 815.2 814.9 MAX. QFE PRESSURE IN HPA 821.5 822.3 823.3 817.9 817.4 816.0 816.7 816.0 820.0 822.6 824.1 821.7 824.1 DAY 27 6 10 26 10 24 29 31 29 10 18 3 MIN. QFE PRESSURE IN HPA 808.1 811.4 808.4 804.9 811.0 807.4 809.7 808.6 813.0 815.9 812.9 806.1 804.9 DAY 21 24 28 3 4 20 22 17 9 14 25 21 MEAN QNH PRESSURE IN HPA 1018.5 1019.4 1018.5 1016.7 1017.6 1015.6 1015.5 1015.0 1020.4 1023.1 1022.5 1018.8 1018.5 MAX. QNH PRESSURE IN HPA 1026.3 1027.3 1028.5 1022.0 1021.4 1019.7 1020.6 1019.7 1024.5 1027.7 1029.5 1026.6 1029.5 DAY 27 6 10 26 10 24 29 31 29 10 18 3 MIN. QNH PRESSURE IN HPA 1010.3 1014.2 1010.6 1006.4 1013.8 1009.4 1012.2 1010.9 1016.2 1019.6 1016.0 1007.9 1006.4 DAY 21 24 28 3 4 20 22 17 9 14 25 21 MEAN QFF PRESSURE IN HPA 1017.8 1016.2 1011.9 1006.8 1003.6 998.2 996.2 995.8 1003.9 1011.3 1017.4 1016.8 1008.0 MAX. QFF PRESSURE IN HPA 1028.4 1029.3 1025.6 1012.3 1008.3 1003.5 1002.7 1002.5 1011.4 1015.3 1027.6 1027.4 1029.3 DAY 25 5 11 5 10 24 29 29 30 26 18 29 MIN. QFF PRESSURE IN HPA 1004.4 1006.2 1003.5 999.0 998.7 990.9 992.3 991.3 998.1 1006.0 1005.7 1002.8 990.9 DAY 7 24 27 3 29 18 22 6 5 14 12 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.9 6.5 9.3 15.7 19.1 25.6 30.0 26.8 22.5 17.0 8.2 4.9 15.7 MINIMUN AIR TEMPERATURE (C) -3.3 0.8 2.7 8.0 10.4 15.0 20.0 16.6 11.5 7.5 0.1 -0.5 7.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 10 5 0 0 0 0 15 DAYS WITH MINIMUM TEMP. <=-4 15 6 2 0 0 0 0 0 0 0 9 8 40 DAYS WITH FREEZING MIN.<= 0 24 12 10 0 0 0 0 0 0 0 13 19 78 TEMPERATURE RECORDS LOWEST(C) -9.6 -7.4 -7.2 0.6 6.0 11.6 14.6 12.4 7.8 3.4 -8.6 -8.2 -9.6 DAY 18 1 2 2 10 8 2 11 28 16 24 13 MAXIMUM AIR TEMPERATURE (C) 9.6 12.5 15.9 22.4 25.7 33.3 37.5 34.1 30.7 25.1 16.1 10.8 22.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 28 31 31 22 0 0 0 112 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.4 16.4 22.4 27.4 29.6 37.6 39.0 37.6 33.2 28.6 22.6 17.8 39.0 DAY 13 24 25 9 22 24 18 1 8 2 1 19 DIF. BETWEEN (MAX.-MIN.) (C) 12.9 11.7 13.2 14.4 15.3 18.3 17.5 17.5 19.2 17.6 16.0 11.3 15.4 MEAN DAILY TEMP. (MDT) (C) 3.2 6.7 9.3 15.2 18.0 24.2 28.7 25.4 21.1 16.3 8.1 5.1 15.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.4 95.2 238.9 135.4 20.8 0.0 0.0 0.0 490.7 HEATING DEG. DAYS(BASE 18 0C) 460.0 316.5 269.7 89.0 28.0 0.0 0.0 0.0 1.4 64.5 298.2 399.3 1926.6 DEWPOINT (MEAN C) -6.8 -5.7 -5.0 0.3 -0.2 2.0 4.2 3.6 0.2 -3.5 -7.4 -3.3 -1.8 MIXING RATIO (G/KG) 2.94 3.28 3.50 4.98 4.73 5.62 6.54 6.40 4.88 3.68 2.92 3.86 4.44 VAPOUR PRESSURE (HPA) 3.83 4.25 4.55 6.47 6.15 7.26 8.41 8.28 6.35 4.82 3.81 5.03 5.77 SATURATION DEF. (HPA) 4.18 5.89 7.89 12.28 17.04 27.42 35.88 28.69 22.60 15.79 7.98 4.16 15.82 RELATIVE HUMIDITY (MEAN %) 55 46 41 39 29 24 21 24 24 26 36 60 35 RELATIVE HUMIDITY (MAX. %) 75 68 64 61 46 37 31 34 36 39 53 80 52 RELATIVE HUMIDITY (MIN. %) 34 25 23 24 18 15 14 17 16 16 19 37 22 RELATIVE HUMIDITY (MEAN% 03UTC) 68 61 57 57 44 37 31 34 36 39 51 75 49 RELATIVE HUMIDITY (MEAN% 09UTC) 42 33 31 28 21 17 15 19 19 19 24 46 26 RELATIVE HUMIDITY (MEAN% 15UTC) 48 36 32 29 21 16 15 18 18 20 27 52 28 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 15.6 17.3 14.9 25.6 0.7 0.0 1.0 0.0 0.0 0.0 0.0 38.8 113.9 DAYS WITH PRECIPITATION >=10 0 0 0 1 0 0 0 0 0 0 0 2 3 DAYS WITH PRECIPITATION >= 5 1 2 1 1 0 0 0 0 0 0 0 2 7 DAYS WITH PRECIPITATION >= 1 4 2 3 3 0 0 1 0 0 0 0 4 17 DAYS WITH PRECIPITATION 6 8 8 5 4 0 1 0 0 0 1 9 42 GREATEST DAILY PRECIPITATION 9.0 8.0 8.0 22.3 0.7 0.0 1.0 0.0 0.0 0.0 0.0 24.0 24.0 DAY 23 14 26 21 8 ** 30 ** ** ** ** 6 DAY WITH THUNDER STORM 0 0 0 2 1 0 1 0 0 0 0 0 4 DAYS WITH SNOW OR SLEET 5 3 1 0 0 0 0 0 0 0 0 2 11 DAYS WITH DUST 2 5 12 9 12 7 4 0 2 1 0 0 54 WIND DIRECTION (PREVAILING) 225 225 225 225 270 270 45 45 270 270 225 225 270 PREVAILING WIND SPEED(KNOTS) 11.8 15.0 17.4 14.8 14.9 15.4 10.5 11.9 13.3 12.9 12.8 14.9 13.2 PREVAILING WIND PERCENT 5.6 21.4 21.8 13.8 11.7 12.9 9.7 21.0 12.1 10.1 8.3 8.5 9.6 CALMS PERCENT OF WIND 73.4 47.3 42.3 52.5 56.9 61.3 58.5 60.5 59.6 60.5 60.8 67.3 58.5 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 223 227 219 218 281 257 106 45 301 239 237 228 235 VECTOR WIND MAGNITUDE(KNOTS) 1.3 5.2 6.5 4.2 2.3 2.6 0.3 3.2 1.4 1.7 1.3 2.0 1.9 WIND STEADINESES (MEAN %) 43.3 77.6 73.0 66.7 46.0 54.2 6.7 76.2 31.8 44.7 31.7 51.3 38.0 WIND SPEED (MEAN KNOTS) 3.0 6.7 8.9 6.3 5.0 4.8 4.5 4.2 4.4 3.8 4.1 3.9 5.0 FASTEST WIND DIRECTION 180 210 210 240 320 280 140 60 270 240 250 210 210 FASTEST WIND SPEED (KNOTS) 39 35 43 43 35 31 29 29 39 31 39 43 43 DAY 28 3 20 16 8 13 5 3 30 4 20 19 DAYS WITH SKY CLEAR (0-2)/8 17 14 18 12 17 27 24 30 30 24 19 16 248 DAYS WITH P.CLOUDY (3-6)/8 7 13 8 9 14 2 7 1 0 7 9 13 90 DAYS WITH CLOUDY (7-8)/8 7 1 5 9 0 1 0 0 0 0 2 2 27 DAYS WITH VISIBILITY =< 2 KM 3 0 3 1 4 0 0 0 0 0 0 7 18 DURATION OF SUNSHINE HOURS 203.0 242.1 239.3 226.7 321.3 353.8 316.3 366.3 334.5 280.3 253.3 207.1 3344.0 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 815.4 812.2 813.0 815.1 815.5 811.7 809.3 813.3 815.2 818.5 818.1 817.6 814.6 MAX. QFE PRESSURE IN HPA 824.0 820.0 821.2 822.8 820.1 818.2 816.0 817.5 821.8 824.2 826.7 824.4 826.7 DAY-HOUR 12- 6 6- 6 2-15 8- 3 2- 6 1-21 3- 6 4- 6 27- 6 15- 6 25- 6 12- 6 MIN. QFE PRESSURE IN HPA 802.5 803.4 803.4 809.5 809.5 804.0 803.5 808.5 809.7 813.9 811.1 809.6 802.5 DAY-HOUR 28-12 19-12 26-12 17-12 29-12 30-12 25-15 1-12 7-12 27-12 14-12 6-12 MEAN QNH PRESSURE IN HPA 1019.1 1015.2 1016.2 1018.7 1019.2 1014.6 1011.7 1016.6 1018.8 1022.8 1022.3 1021.7 1018.1 MAX. QNH PRESSURE IN HPA 1029.3 1024.5 1026.0 1027.9 1024.7 1022.4 1019.7 1021.5 1026.7 1029.6 1032.6 1029.8 1032.6 DAY-HOUR 12- 6 6- 6 2-15 8- 3 2- 6 1-21 3- 6 4- 6 27- 6 15- 6 25- 6 12- 6 MIN. QNH PRESSURE IN HPA 1003.6 1004.6 1004.6 1012.0 1012.0 1005.4 1004.8 1010.8 1012.2 1017.2 1013.9 1012.1 1003.6 DAY-HOUR 28-12 19-12 26-12 17-12 29-12 30-12 25-15 1-12 7-12 27-12 14-12 6-12 MEAN QFF PRESSURE IN HPA 1019.0 1012.1 1011.0 1008.6 1006.6 997.3 991.3 998.4 1003.9 1011.9 1018.1 1020.0 1008.2 MAX. QFF PRESSURE IN HPA 1031.3 1025.4 1029.3 1016.9 1016.4 1007.3 1002.2 1006.5 1014.8 1020.9 1033.9 1034.5 1034.5 DAY-HOUR 12- 6 6- 6 2-15 8- 3 2- 6 4- 3 3- 3 12- 3 27- 3 16- 3 25- 3 12- 6 MIN. QFF PRESSURE IN HPA 1000.5 999.4 995.5 999.4 997.5 986.9 983.6 988.5 995.4 1003.4 1006.4 1007.0 983.6 DAY-HOUR 28-12 19-12 26-12 21- 0 29- 9 30-12 26-12 1-12 7-12 1-12 2-12 27-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 815.3 812.2 812.8 814.9 815.6 811.9 809.4 813.4 815.4 818.4 818.1 817.5 814.6 MAX. QFE PRESSURE IN HPA 822.2 818.0 820.3 821.5 818.8 817.1 814.5 816.3 820.4 822.2 825.7 823.2 825.7 DAY 12 7 3 8 2 4 3 12 27 16 26 12 MIN. QFE PRESSURE IN HPA 807.1 804.7 806.8 809.8 810.6 806.6 805.0 809.7 811.6 815.2 814.2 811.0 804.7 DAY 29 19 13 21 29 30 26 1 8 1 2 28 MEAN QNH PRESSURE IN HPA 1018.8 1015.2 1016.0 1018.4 1019.2 1014.9 1011.8 1016.7 1019.0 1022.6 1022.3 1021.5 1018.0 MAX. QNH PRESSURE IN HPA 1027.2 1022.1 1024.9 1026.3 1023.1 1021.1 1018.0 1020.1 1025.0 1027.2 1031.4 1028.4 1031.4 DAY 12 7 3 8 2 4 3 12 27 16 26 12 MIN. QNH PRESSURE IN HPA 1009.1 1006.2 1008.7 1012.3 1013.3 1008.5 1006.6 1012.2 1014.5 1018.8 1017.6 1013.8 1006.2 DAY 29 19 13 21 29 30 26 1 8 1 2 28 MEAN QFF PRESSURE IN HPA 1018.0 1011.5 1010.3 1008.2 1006.7 997.9 991.4 998.6 1004.1 1011.4 1017.5 1019.0 1007.9 MAX. QFF PRESSURE IN HPA 1026.5 1021.6 1026.8 1015.5 1014.9 1005.9 999.3 1004.1 1012.3 1017.4 1031.2 1031.4 1031.4 DAY 12 7 3 4 2 4 3 11 27 15 26 13 MIN. QFF PRESSURE IN HPA 1003.8 1002.8 1000.0 999.4 999.3 989.9 985.1 990.5 998.5 1003.6 1006.9 1007.3 985.1 DAY 16 19 13 21 29 30 26 1 8 1 2 28 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 815.5 812.4 813.4 815.5 816.2 812.7 810.2 814.3 816.1 819.1 818.5 817.6 815.1 MAX. QFE PRESSURE IN HPA 822.8 818.2 820.2 822.8 819.5 817.6 815.7 817.0 821.0 823.0 825.5 823.1 825.5 DAY 12 6 3 8 2 4 3 12 27 15 26 12 MIN. QFE PRESSURE IN HPA 807.4 803.6 808.1 810.7 810.8 807.2 806.0 810.4 812.0 815.7 814.7 811.2 803.6 DAY 16 19 13 14 29 30 26 1 7 26 14 6 MEAN QNH PRESSURE IN HPA 1019.1 1015.4 1016.6 1019.1 1020.0 1015.7 1012.8 1017.7 1019.8 1023.4 1022.7 1021.7 1018.7 MAX. QNH PRESSURE IN HPA 1027.9 1022.4 1024.8 1027.9 1023.9 1021.7 1019.4 1020.9 1025.7 1028.1 1031.1 1028.3 1031.1 DAY 12 6 3 8 2 4 3 12 27 15 26 12 MIN. QNH PRESSURE IN HPA 1009.4 1004.9 1010.3 1013.4 1013.5 1009.2 1007.8 1013.0 1015.0 1019.4 1018.2 1014.0 1004.9 DAY 16 19 13 14 29 30 26 1 7 26 14 6 MEAN QFF PRESSURE IN HPA 1019.9 1013.1 1012.5 1010.0 1008.7 999.8 993.9 1001.0 1006.7 1014.3 1020.0 1020.9 1010.1 MAX. QFF PRESSURE IN HPA 1030.4 1023.0 1028.2 1016.9 1016.3 1007.3 1002.2 1006.5 1014.8 1020.9 1033.9 1033.8 1033.9 DAY 12 1 3 8 2 4 3 12 27 16 25 12 MIN. QFF PRESSURE IN HPA 1004.7 1001.3 1002.7 1002.7 1000.1 992.2 988.5 992.5 1000.9 1008.0 1010.5 1009.0 988.5 DAY 16 19 21 28 29 30 26 1 7 1 2 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 816.6 813.3 814.4 816.2 816.7 813.0 810.5 814.8 816.8 820.0 819.5 818.9 815.9 MAX. QFE PRESSURE IN HPA 824.0 820.0 821.2 822.7 820.1 817.6 816.0 817.5 821.8 824.2 826.7 824.4 826.7 DAY 12 6 3 8 2 4 3 4 27 15 25 12 MIN. QFE PRESSURE IN HPA 808.1 805.0 807.1 811.2 810.3 806.9 806.6 810.8 812.7 816.8 815.1 812.8 805.0 DAY 28 19 26 14 29 30 26 1 7 26 14 6 MEAN QNH PRESSURE IN HPA 1020.5 1016.5 1017.8 1020.0 1020.6 1016.1 1013.2 1018.4 1020.7 1024.5 1024.0 1023.2 1019.6 MAX. QNH PRESSURE IN HPA 1029.3 1024.5 1026.0 1027.8 1024.7 1021.7 1019.7 1021.5 1026.7 1029.6 1032.6 1029.8 1032.6 DAY 12 6 3 8 2 4 3 4 27 15 25 12 MIN. QNH PRESSURE IN HPA 1010.3 1006.6 1009.1 1014.0 1012.9 1008.8 1008.5 1013.5 1015.8 1020.7 1018.7 1015.9 1006.6 DAY 28 19 26 14 29 30 26 1 7 26 14 6 MEAN QFF PRESSURE IN HPA 1021.1 1013.9 1012.9 1009.6 1007.6 998.1 992.2 999.5 1005.0 1013.2 1019.9 1022.1 1009.6 MAX. QFF PRESSURE IN HPA 1031.3 1025.4 1027.2 1015.8 1016.4 1005.5 1000.9 1002.9 1013.5 1020.1 1033.7 1034.5 1034.5 DAY 12 6 2 3 2 3 3 11 27 15 25 12 MIN. QFF PRESSURE IN HPA 1009.5 1002.6 1000.4 1002.0 997.9 988.8 987.0 992.6 999.6 1006.5 1009.8 1011.1 987.0 DAY 16 20 26 28 29 30 30 1 10 1 2 19 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 815.5 812.4 813.3 815.3 815.8 811.9 809.6 813.7 815.5 818.8 818.1 817.6 814.8 MAX. QFE PRESSURE IN HPA 822.6 819.1 820.1 821.9 819.5 816.6 814.9 816.3 820.1 822.6 825.2 822.8 825.2 DAY 12 6 2 8 2 1 3 11 27 15 25 12 MIN. QFE PRESSURE IN HPA 805.5 805.0 805.6 810.3 810.0 805.5 805.3 810.2 811.4 815.6 813.4 810.4 805.0 DAY 28 19 26 17 29 30 26 1 7 26 14 6 MEAN QNH PRESSURE IN HPA 1019.2 1015.5 1016.5 1018.9 1019.5 1014.8 1012.1 1017.0 1019.2 1023.1 1022.3 1021.7 1018.3 MAX. QNH PRESSURE IN HPA 1027.7 1023.5 1024.7 1026.8 1023.9 1020.5 1018.4 1020.1 1024.7 1027.7 1030.8 1027.9 1030.8 DAY 12 6 2 8 2 1 3 11 27 15 25 12 MIN. QNH PRESSURE IN HPA 1007.2 1006.6 1007.3 1012.9 1012.6 1007.2 1006.9 1012.8 1014.2 1019.3 1016.6 1013.0 1006.6 DAY 28 19 26 17 29 30 26 1 7 26 14 6 MEAN QFF PRESSURE IN HPA 1018.3 1011.7 1010.6 1008.2 1006.4 996.7 990.9 998.0 1003.0 1011.2 1017.2 1019.1 1007.6 MAX. QFF PRESSURE IN HPA 1026.3 1023.6 1026.4 1014.4 1014.9 1004.2 999.3 1002.4 1011.1 1016.7 1031.0 1032.2 1032.2 DAY 31 6 2 8 2 1 3 11 27 16 25 12 MIN. QFF PRESSURE IN HPA 1005.8 999.7 997.5 1001.2 997.5 987.4 985.0 991.3 997.2 1005.1 1007.4 1008.6 985.0 DAY 28 20 26 28 29 30 26 1 10 1 2 19 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 814.4 811.1 811.7 814.0 814.3 810.4 808.2 812.1 813.8 817.4 816.7 816.6 813.4 MAX. QFE PRESSURE IN HPA 821.2 817.5 818.8 820.6 817.6 815.8 813.0 815.2 818.8 821.4 824.6 821.0 824.6 DAY 12 6 2 8 2 1 3 11 27 15 25 12 MIN. QFE PRESSURE IN HPA 802.5 803.4 803.4 809.5 809.5 804.0 803.7 808.5 809.7 813.9 811.1 809.6 802.5 DAY 28 19 26 17 29 30 26 1 7 27 14 6 MEAN QNH PRESSURE IN HPA 1017.8 1013.9 1014.6 1017.4 1017.7 1013.0 1010.4 1015.0 1017.1 1021.4 1020.6 1020.5 1016.6 MAX. QNH PRESSURE IN HPA 1026.0 1021.5 1023.1 1025.3 1021.7 1019.5 1016.2 1018.8 1023.1 1026.2 1030.1 1025.7 1030.1 DAY 12 6 2 8 2 1 3 11 27 15 25 12 MIN. QNH PRESSURE IN HPA 1003.6 1004.6 1004.6 1012.0 1012.0 1005.4 1005.0 1010.8 1012.2 1017.2 1013.9 1012.1 1003.6 DAY 28 19 26 17 29 30 26 1 7 27 14 6 MEAN QFF PRESSURE IN HPA 1016.9 1010.1 1008.8 1007.0 1005.1 995.9 989.9 996.7 1002.0 1010.1 1015.9 1018.1 1006.4 MAX. QFF PRESSURE IN HPA 1024.1 1020.4 1025.3 1013.5 1013.2 1005.1 996.7 1002.8 1010.8 1016.7 1030.3 1030.1 1030.3 DAY 12 6 2 3 2 1 3 11 27 15 25 12 MIN. QFF PRESSURE IN HPA 1000.5 999.4 995.5 1000.4 998.1 986.9 983.6 988.5 995.4 1003.4 1006.4 1007.2 983.6 DAY 28 19 26 20 29 30 26 1 7 1 2 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 815.0 811.6 812.2 814.3 814.3 810.3 807.9 811.7 813.8 817.5 817.4 817.3 813.6 MAX. QFE PRESSURE IN HPA 821.7 817.8 821.2 821.1 817.6 816.6 812.4 814.7 818.5 821.5 824.8 821.3 824.8 DAY 12 6 2 8 10 1 3 11 27 15 25 12 MIN. QFE PRESSURE IN HPA 802.5 805.5 804.6 810.2 810.8 804.3 803.5 808.6 809.8 814.5 812.5 810.2 802.5 DAY 28 19 26 17 28 30 25 1 7 26 14 6 MEAN QNH PRESSURE IN HPA 1018.6 1014.5 1015.2 1017.7 1017.7 1012.9 1010.0 1014.6 1017.1 1021.6 1021.4 1021.3 1016.9 MAX. QNH PRESSURE IN HPA 1026.6 1021.9 1026.0 1025.9 1021.7 1020.5 1015.4 1018.2 1022.7 1026.3 1030.3 1026.1 1030.3 DAY 12 6 2 8 10 1 3 11 27 15 25 12 MIN. QNH PRESSURE IN HPA 1003.6 1007.2 1006.1 1012.8 1013.5 1005.7 1004.8 1010.9 1012.3 1018.0 1015.6 1012.8 1003.6 DAY 28 19 26 17 28 30 25 1 7 26 14 6 MEAN QFF PRESSURE IN HPA 1019.3 1012.1 1010.9 1008.5 1006.2 996.8 991.0 997.8 1003.8 1012.4 1018.7 1020.6 1008.2 MAX. QFF PRESSURE IN HPA 1028.2 1021.8 1029.3 1014.7 1013.6 1007.1 997.4 1003.5 1012.2 1018.3 1032.6 1031.8 1032.6 DAY 12 6 2 8 2 1 3 11 27 15 25 12 MIN. QFF PRESSURE IN HPA 1001.4 1001.8 998.4 1000.7 1000.7 988.9 985.5 989.5 997.5 1006.6 1009.9 1010.1 985.5 DAY 28 20 12 20 29 30 25 1 7 1 2 6 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 815.7 812.4 813.2 815.6 815.6 811.6 809.2 813.1 815.1 818.5 818.3 817.9 814.7 MAX. QFE PRESSURE IN HPA 822.5 818.7 820.4 821.9 818.9 817.7 813.2 816.1 819.5 822.4 826.2 823.1 826.2 DAY 7 6 2 7 2 1 3 11 26 15 25 11 MIN. QFE PRESSURE IN HPA 803.7 806.4 806.1 810.7 811.6 805.4 805.4 809.9 811.5 815.5 813.5 811.6 803.7 DAY 28 19 12 20 28 30 25 1 6 25 14 27 MEAN QNH PRESSURE IN HPA 1019.3 1015.5 1016.5 1019.2 1019.2 1014.5 1011.6 1016.3 1018.7 1022.7 1022.5 1022.0 1018.2 MAX. QNH PRESSURE IN HPA 1027.5 1023.0 1025.0 1026.8 1023.2 1021.8 1016.4 1019.9 1023.9 1027.4 1032.0 1028.3 1032.0 DAY 7 6 2 7 2 1 3 11 26 15 25 11 MIN. QNH PRESSURE IN HPA 1005.0 1008.2 1007.9 1013.4 1014.5 1007.0 1007.0 1012.4 1014.4 1019.2 1016.8 1014.5 1005.0 DAY 28 19 12 20 28 30 25 1 6 25 14 27 MEAN QFF PRESSURE IN HPA 1020.0 1012.8 1011.3 1008.8 1006.0 996.4 990.6 997.5 1003.1 1011.5 1018.5 1021.0 1008.1 MAX. QFF PRESSURE IN HPA 1029.0 1024.3 1026.9 1015.1 1014.6 1006.7 997.0 1001.2 1011.1 1018.2 1033.2 1032.0 1033.2 DAY 11 6 2 7 2 1 2 11 27 15 25 12 MIN. QFF PRESSURE IN HPA 1003.4 1002.0 1000.1 1001.5 1000.4 987.7 985.8 990.8 997.6 1005.7 1008.6 1008.4 985.8 DAY 28 20 12 20 28 30 25 1 10 1 1 27 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 815.6 812.4 813.3 815.4 815.9 812.0 809.7 813.7 815.6 818.6 818.2 817.8 814.8 MAX. QFE PRESSURE IN HPA 823.2 818.5 820.6 821.7 818.8 818.2 814.0 816.5 820.2 822.5 826.2 823.5 826.2 DAY 7 6 2 7 1 1 3 11 26 15 25 11 MIN. QFE PRESSURE IN HPA 805.4 807.0 807.8 810.5 811.2 805.9 805.4 810.8 812.1 815.5 813.0 811.4 805.4 DAY 28 19 12 20 28 30 25 1 7 25 14 27 MEAN QNH PRESSURE IN HPA 1019.3 1015.5 1016.5 1019.1 1019.6 1014.9 1012.2 1016.9 1019.3 1022.9 1022.4 1021.9 1018.4 MAX. QNH PRESSURE IN HPA 1028.4 1022.7 1025.3 1026.6 1023.1 1022.4 1017.4 1020.3 1024.8 1027.5 1032.0 1028.7 1032.0 DAY 7 6 2 7 1 1 3 11 26 15 25 11 MIN. QNH PRESSURE IN HPA 1007.0 1009.0 1009.9 1013.2 1014.0 1007.6 1007.0 1013.5 1015.1 1019.2 1016.2 1014.2 1007.0 DAY 28 19 12 20 28 30 25 1 7 25 14 27 MEAN QFF PRESSURE IN HPA 1018.4 1011.7 1010.6 1008.3 1006.4 996.8 991.0 998.1 1003.2 1011.1 1017.4 1019.4 1007.7 MAX. QFF PRESSURE IN HPA 1026.5 1022.4 1027.5 1014.5 1014.3 1006.6 998.6 1002.7 1011.2 1017.3 1032.3 1031.8 1032.3 DAY 11 6 2 8 1 1 2 11 27 15 25 13 MIN. QFF PRESSURE IN HPA 1004.5 1003.3 1000.7 1000.3 999.0 988.0 985.2 991.7 998.0 1005.5 1006.9 1007.0 985.2 DAY 28 20 20 20 28 30 25 1 7 1 1 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.1 6.7 12.6 14.6 21.5 27.4 28.2 28.5 21.4 15.6 10.3 2.2 16.1 MINIMUN AIR TEMPERATURE (C) -0.6 -0.3 3.5 7.5 11.1 16.5 17.7 16.9 11.5 5.8 3.3 -2.9 7.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 4 3 2 0 0 0 0 9 DAYS WITH MINIMUM TEMP. <=-4 6 5 0 0 0 0 0 0 0 0 2 13 26 DAYS WITH FREEZING MIN.<= 0 17 16 7 0 0 0 0 0 0 0 6 23 69 TEMPERATURE RECORDS LOWEST(C) -6.8 -5.8 -3.0 0.8 7.2 10.0 13.2 14.2 3.8 0.2 -6.2 -10.2 -10.2 DAY 22 21 17 18 5 4 21 13 28 29 29 29 MAXIMUM AIR TEMPERATURE (C) 9.7 13.3 18.0 19.1 26.6 32.7 33.1 35.3 29.3 23.8 17.2 7.9 22.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 5 28 28 31 15 0 0 0 107 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 1 1 TEMPERATURE RECORDS HIGHEST(C) 14.0 19.8 24.2 24.8 30.6 35.6 37.1 38.0 33.2 28.6 22.0 14.0 38.0 DAY 5 14 6 22 23 30 31 16 11 3 9 31 DIF. BETWEEN (MAX.-MIN.) (C) 10.3 13.6 14.5 11.6 15.5 16.2 15.4 18.4 17.8 18.0 13.9 10.8 14.7 MEAN DAILY TEMP. (MDT) (C) 4.5 6.5 10.7 13.3 18.9 24.6 25.4 26.1 20.4 14.8 10.2 2.5 14.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 2.6 108.6 136.4 158.1 30.7 0.0 0.0 0.0 436.4 HEATING DEG. DAYS(BASE 18 0C) 417.7 334.5 225.0 144.6 16.1 0.0 0.0 0.0 13.6 101.5 232.8 480.3 1966.1 DEWPOINT (MEAN C) -3.0 -5.9 -3.6 -0.1 -2.5 -1.6 1.1 -1.6 -3.3 -4.1 -2.4 -4.9 -2.7 MIXING RATIO (G/KG) 3.90 3.17 3.72 4.99 4.14 4.35 5.31 4.29 3.80 3.58 4.14 3.37 4.06 VAPOUR PRESSURE (HPA) 5.07 4.12 4.85 6.47 5.38 5.63 6.87 5.57 4.95 4.69 5.40 4.39 5.28 SATURATION DEF. (HPA) 3.46 6.32 10.89 10.84 21.49 32.42 32.94 35.55 22.39 14.37 7.90 3.14 16.81 RELATIVE HUMIDITY (MEAN %) 63 45 39 43 24 17 20 16 21 28 45 63 35 RELATIVE HUMIDITY (MAX. %) 84 69 65 67 44 31 35 28 34 44 66 83 54 RELATIVE HUMIDITY (MIN. %) 42 25 24 29 13 10 13 9 12 16 27 40 22 RELATIVE HUMIDITY (MEAN% 03UTC) 79 63 64 65 44 31 34 28 33 43 60 76 52 RELATIVE HUMIDITY (MEAN% 09UTC) 49 30 28 34 17 13 15 11 14 19 31 48 26 RELATIVE HUMIDITY (MEAN% 15UTC) 54 36 33 36 17 12 15 10 14 21 37 57 29 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 85.0 26.6 15.9 54.4 0.2 0.0 0.3 0.0 0.0 0.0 16.3 37.8 236.5 DAYS WITH PRECIPITATION >=10 3 1 0 2 0 0 0 0 0 0 1 2 9 DAYS WITH PRECIPITATION >= 5 4 2 1 5 0 0 0 0 0 0 1 2 15 DAYS WITH PRECIPITATION >= 1 6 4 3 9 0 0 0 0 0 0 2 6 30 DAYS WITH PRECIPITATION 10 5 5 10 1 0 2 0 0 0 6 10 49 GREATEST DAILY PRECIPITATION 30.0 18.0 9.0 15.0 0.2 0.0 0.3 0.0 0.0 0.0 13.0 21.0 30.0 DAY 7 6 19 5 5 ** 12 ** ** ** 19 15 DAY WITH THUNDER STORM 0 0 0 2 2 0 1 0 0 0 2 0 7 DAYS WITH SNOW OR SLEET 2 2 1 0 0 0 0 0 0 0 0 5 10 DAYS WITH DUST 0 4 1 1 2 2 1 0 0 2 4 0 17 WIND DIRECTION (PREVAILING) 270 225 225 225 225 45 360 45 45 45 225 270 225 PREVAILING WIND SPEED(KNOTS) 12.5 16.4 14.7 17.4 13.9 9.4 8.1 9.5 8.3 7.2 14.0 11.3 13.9 PREVAILING WIND PERCENT 11.7 18.7 14.8 14.7 20.0 10.7 11.6 21.0 20.0 10.9 11.7 6.5 9.2 CALMS PERCENT OF WIND 59.7 47.3 52.3 46.0 41.9 53.3 54.8 53.6 67.9 71.0 59.6 71.8 58.2 NO. OF WIND OBSERVATION 248 203 155 150 155 150 155 181 240 248 240 248 2373 VECTOR WIND DIRECTION (MEAN) 226 226 241 239 228 342 10 34 45 301 231 240 240 VECTOR WIND MAGNITUDE(KNOTS) 2.6 5.5 2.5 4.0 4.5 0.6 1.2 1.7 1.5 0.7 2.7 1.1 1.6 WIND STEADINESES (MEAN %) 57.8 76.4 47.2 55.6 60.8 12.8 26.7 37.8 60.0 28.0 61.4 42.3 33.3 WIND SPEED (MEAN KNOTS) 4.5 7.2 5.3 7.2 7.4 4.7 4.5 4.5 2.5 2.5 4.4 2.6 4.8 FASTEST WIND DIRECTION 180 210 210 210 170 210 270 250 20 240 210 210 210 FASTEST WIND SPEED (KNOTS) 39 54 47 39 49 31 31 23 23 35 43 43 54 DAY 3 14 12 17 29 2 11 4 20 22 27 13 DAYS WITH SKY CLEAR (0-2)/8 14 22 15 9 26 22 20 30 29 27 20 19 253 DAYS WITH P.CLOUDY (3-6)/8 13 5 14 16 4 8 11 1 1 4 9 6 92 DAYS WITH CLOUDY (7-8)/8 4 2 2 5 1 0 0 0 0 0 1 6 21 DAYS WITH VISIBILITY =< 2 KM 2 0 1 0 0 0 0 0 0 0 0 3 6 DURATION OF SUNSHINE HOURS 208.9 245.0 258.7 236.7 329.0 306.2 308.7 342.4 317.0 297.1 216.1 189.5 3255.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 813.3 815.2 816.4 813.9 813.3 812.2 812.4 812.3 816.7 819.8 817.2 815.4 814.9 MAX. QFE PRESSURE IN HPA 820.5 822.4 823.1 819.1 818.1 818.3 818.2 816.9 822.6 824.5 822.1 824.4 824.5 DAY-HOUR 12- 6 10- 6 24- 6 29- 6 18- 6 6- 6 18- 6 18- 6 27- 6 15- 6 1- 6 4- 6 MIN. QFE PRESSURE IN HPA 806.1 808.7 809.5 804.7 804.1 806.0 806.7 807.2 811.0 814.4 809.0 809.2 804.1 DAY-HOUR 27- 3 15-12 31-15 17-12 13-12 15-15 11-12 4-15 16-12 3-12 23-21 16-12 MEAN QNH PRESSURE IN HPA 1016.5 1018.8 1020.3 1017.2 1016.5 1015.2 1015.5 1015.3 1020.6 1024.3 1021.2 1019.1 1018.4 MAX. QNH PRESSURE IN HPA 1025.1 1027.4 1028.3 1023.5 1022.3 1022.5 1022.4 1020.8 1027.7 1029.9 1027.1 1029.8 1029.9 DAY-HOUR 12- 6 10- 6 24- 6 29- 6 18- 6 6- 6 18- 6 18- 6 27- 6 15- 6 1- 6 4- 6 MIN. QNH PRESSURE IN HPA 1007.9 1011.0 1012.0 1006.2 1005.5 1007.8 1008.6 1009.2 1013.8 1017.8 1011.4 1011.6 1005.5 DAY-HOUR 27- 3 15-12 31-15 17-12 13-12 15-15 11-12 4-15 16-12 3-12 23-21 16-12 MEAN QFF PRESSURE IN HPA 1015.3 1016.0 ****** ****** ****** ****** ****** ****** 1006.5 1014.6 1015.2 1019.5 ****** MAX. QFF PRESSURE IN HPA 1026.6 1028.6 ****** ****** ****** ****** ****** ****** 1018.3 1023.3 1028.9 1034.0 ****** DAY-HOUR 12- 6 10- 6 **-** **-** **-** **-** **-** **-** 27- 3 27- 6 29- 6 4- 3 MIN. QFF PRESSURE IN HPA 1003.7 1002.9 ****** ****** ****** ****** ****** ****** 997.8 1005.8 1002.4 1008.9 ****** DAY-HOUR 27- 0 15- 0 **-** **-** **-** **-** **-** **-** 5-12 3-12 23-21 15- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 813.3 814.8 ****** ****** ****** ****** ****** ****** 816.6 819.9 817.0 815.1 ****** MAX. QFE PRESSURE IN HPA 819.3 821.0 ****** ****** ****** ****** ****** ****** 821.2 822.7 820.7 823.7 ****** DAY 12 10 ** ** ** ** ** ** 27 27 1 4 MIN. QFE PRESSURE IN HPA 806.5 810.5 ****** ****** ****** ****** ****** ****** 812.4 816.4 809.3 809.4 ****** DAY 27 15 ** ** ** ** ** ** 12 3 24 17 MEAN QNH PRESSURE IN HPA 1016.5 1018.3 ****** ****** ****** ****** ****** ****** 1020.5 1024.4 1021.0 1018.7 ****** MAX. QNH PRESSURE IN HPA 1023.7 1025.7 ****** ****** ****** ****** ****** ****** 1026.0 1027.8 1025.4 1029.0 ****** DAY 12 10 ** ** ** ** ** ** 27 27 1 4 MIN. QNH PRESSURE IN HPA 1008.4 1013.2 ****** ****** ****** ****** ****** ****** 1015.4 1020.2 1011.7 1011.8 ****** DAY 27 15 ** ** ** ** ** ** 12 3 24 17 MEAN QFF PRESSURE IN HPA 1014.7 1015.1 ****** ****** ****** ****** ****** ****** 1006.1 1014.3 1014.5 1018.4 ****** MAX. QFF PRESSURE IN HPA 1025.3 1023.9 ****** ****** ****** ****** ****** ****** 1015.0 1021.3 1025.8 1031.7 ****** DAY 1 9 ** ** ** ** ** ** 28 27 29 4 MIN. QFF PRESSURE IN HPA 1003.7 1002.9 ****** ****** ****** ****** ****** ****** 999.2 1008.8 1004.9 1008.9 ****** DAY 27 15 ** ** ** ** ** ** 12 3 23 15 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 813.3 815.4 816.7 814.1 813.9 813.2 813.2 813.0 817.4 820.3 817.5 815.4 815.3 MAX. QFE PRESSURE IN HPA 819.3 821.3 822.3 818.4 818.0 817.6 817.3 816.3 821.9 822.9 821.1 823.7 823.7 DAY 12 10 24 29 18 1 18 18 27 27 1 4 MIN. QFE PRESSURE IN HPA 806.1 809.3 809.6 804.9 806.7 808.1 808.2 809.8 813.0 817.0 810.0 809.3 804.9 DAY 27 2 15 17 13 18 11 4 12 3 23 16 MEAN QNH PRESSURE IN HPA 1016.5 1019.0 1020.6 1017.5 1017.3 1016.3 1016.3 1016.2 1021.5 1024.9 1021.5 1019.0 1018.9 MAX. QNH PRESSURE IN HPA 1023.7 1026.1 1027.3 1022.6 1022.1 1021.7 1021.3 1020.1 1026.8 1028.0 1025.9 1029.0 1029.0 DAY 12 10 24 29 18 1 18 18 27 27 1 4 MIN. QNH PRESSURE IN HPA 1007.9 1011.7 1012.1 1006.4 1008.6 1010.3 1010.4 1012.3 1016.2 1020.9 1012.6 1011.7 1006.4 DAY 27 2 15 17 13 18 11 4 12 3 23 16 MEAN QFF PRESSURE IN HPA 1016.0 1017.2 1015.3 1009.9 1005.3 1000.1 999.6 999.2 1008.9 1017.0 1016.7 1020.4 1010.5 MAX. QFF PRESSURE IN HPA 1026.5 1026.2 1025.6 1017.5 1010.0 1008.9 1006.1 1004.7 1018.3 1023.1 1028.6 1034.0 1034.0 DAY 1 9 23 12 19 1 18 29 27 27 29 4 MIN. QFF PRESSURE IN HPA 1005.0 1004.7 1007.2 996.1 995.4 992.3 993.2 995.0 1002.5 1011.3 1004.4 1009.4 992.3 DAY 27 15 30 17 13 18 11 4 12 3 23 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 814.3 816.4 817.7 814.9 814.4 813.6 813.7 813.6 818.4 821.4 818.5 816.6 816.1 MAX. QFE PRESSURE IN HPA 820.5 822.4 823.1 819.1 818.1 818.3 818.2 816.9 822.6 824.5 822.1 824.4 824.5 DAY 12 10 24 29 18 6 18 18 27 15 1 4 MIN. QFE PRESSURE IN HPA 807.5 809.8 810.2 805.1 807.0 808.6 808.6 809.7 814.1 817.5 810.8 809.5 805.1 DAY 27 2 15 17 13 18 11 4 12 3 23 16 MEAN QNH PRESSURE IN HPA 1017.8 1020.2 1021.8 1018.4 1017.8 1016.8 1016.9 1016.8 1022.6 1026.2 1022.8 1020.5 1019.9 MAX. QNH PRESSURE IN HPA 1025.1 1027.4 1028.3 1023.5 1022.3 1022.5 1022.4 1020.8 1027.7 1029.9 1027.1 1029.8 1029.9 DAY 12 10 24 29 18 6 18 18 27 15 1 4 MIN. QNH PRESSURE IN HPA 1009.6 1012.3 1012.8 1006.7 1009.0 1010.9 1010.9 1012.2 1017.5 1021.5 1013.5 1012.0 1006.7 DAY 27 2 15 17 13 18 11 4 12 3 23 16 MEAN QFF PRESSURE IN HPA 1016.9 1017.6 ****** ****** ****** ****** ****** ****** 1008.1 1016.2 1016.9 1021.6 ****** MAX. QFF PRESSURE IN HPA 1026.6 1028.6 ****** ****** ****** ****** ****** ****** 1017.6 1023.3 1028.9 1033.7 ****** DAY 12 10 ** ** ** ** ** ** 27 27 29 4 MIN. QFF PRESSURE IN HPA 1006.2 1006.6 ****** ****** ****** ****** ****** ****** 1001.5 1009.6 1004.9 1011.4 ****** DAY 27 15 ** ** ** ** ** ** 12 3 23 16 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 813.5 815.6 816.9 814.1 813.5 812.6 812.8 812.5 817.2 820.0 817.3 815.6 815.1 MAX. QFE PRESSURE IN HPA 819.2 821.5 822.3 818.4 817.2 817.4 816.9 816.2 821.6 823.1 820.8 823.9 823.9 DAY 12 10 23 12 18 6 18 18 27 27 1 3 MIN. QFE PRESSURE IN HPA 807.7 809.7 810.4 805.6 806.0 807.6 807.8 808.2 812.9 816.0 809.5 810.0 805.6 DAY 27 15 31 17 13 18 11 4 12 3 23 16 MEAN QNH PRESSURE IN HPA 1016.8 1019.2 1020.9 1017.5 1016.7 1015.6 1015.9 1015.6 1021.2 1024.5 1021.3 1019.3 1018.7 MAX. QNH PRESSURE IN HPA 1023.6 1026.3 1027.3 1022.6 1021.2 1021.4 1020.8 1020.0 1026.5 1028.3 1025.5 1029.2 1029.2 DAY 12 10 23 12 18 6 18 18 27 27 1 3 MIN. QNH PRESSURE IN HPA 1009.8 1012.2 1013.0 1007.3 1007.8 1009.7 1009.9 1010.4 1016.0 1019.7 1012.0 1012.6 1007.3 DAY 27 15 31 17 13 18 11 4 12 3 23 16 MEAN QFF PRESSURE IN HPA 1015.0 1015.1 ****** ****** ****** ****** ****** ****** 1006.1 1013.5 1014.3 1019.1 ****** MAX. QFF PRESSURE IN HPA 1023.8 1024.4 ****** ****** ****** ****** ****** ****** 1015.0 1021.0 1025.4 1030.1 ****** DAY 12 8 ** ** ** ** ** ** 27 27 29 3 MIN. QFF PRESSURE IN HPA 1006.1 1004.0 ****** ****** ****** ****** ****** ****** 999.9 1006.8 1003.2 1010.9 ****** DAY 7 15 ** ** ** ** ** ** 12 3 23 16 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 812.5 814.4 815.3 813.1 812.3 811.1 811.6 810.9 815.5 818.5 816.1 814.6 813.8 MAX. QFE PRESSURE IN HPA 818.0 820.2 820.9 817.5 816.0 815.9 815.9 814.1 820.3 821.1 819.2 823.5 823.5 DAY 11 10 23 11 3 6 18 29 27 27 1 3 MIN. QFE PRESSURE IN HPA 806.5 808.7 810.0 804.7 804.1 806.1 806.7 807.4 811.0 814.4 809.7 809.2 804.1 DAY 23 15 31 17 13 18 11 4 16 3 23 16 MEAN QNH PRESSURE IN HPA 1015.6 1017.8 1019.0 1016.3 1015.3 1013.9 1014.4 1013.6 1019.1 1022.7 1019.9 1018.0 1017.1 MAX. QNH PRESSURE IN HPA 1022.1 1024.8 1025.6 1021.5 1019.7 1019.6 1019.6 1017.5 1024.9 1025.9 1023.6 1028.7 1028.7 DAY 11 10 23 11 3 6 18 29 27 27 1 3 MIN. QNH PRESSURE IN HPA 1008.4 1011.0 1012.6 1006.2 1005.5 1007.9 1008.6 1009.4 1013.8 1017.8 1012.2 1011.6 1005.5 DAY 23 15 31 17 13 18 11 4 16 3 23 16 MEAN QFF PRESSURE IN HPA 1013.6 1014.0 ****** ****** ****** ****** ****** ****** 1004.8 1012.6 1013.4 1017.6 ****** MAX. QFF PRESSURE IN HPA 1021.8 1023.6 ****** ****** ****** ****** ****** ****** 1013.8 1019.6 1023.4 1030.3 ****** DAY 11 8 ** ** ** ** ** ** 27 27 29 3 MIN. QFF PRESSURE IN HPA 1006.4 1003.9 ****** ****** ****** ****** ****** ****** 997.8 1005.8 1004.3 1009.4 ****** DAY 27 15 ** ** ** ** ** ** 5 3 27 9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 812.9 814.7 815.5 813.3 812.3 810.8 811.1 810.6 815.4 818.7 816.8 815.1 813.9 MAX. QFE PRESSURE IN HPA 818.6 820.2 820.8 818.5 817.2 815.2 815.0 813.7 820.3 821.1 819.5 823.8 823.8 DAY 11 10 23 11 3 6 17 30 26 26 1 3 MIN. QFE PRESSURE IN HPA 806.7 809.1 809.5 804.8 804.6 806.0 807.0 807.2 811.1 814.8 810.3 809.6 804.6 DAY 23 15 31 17 13 15 10 4 12 3 23 16 MEAN QNH PRESSURE IN HPA 1016.0 1018.2 1019.2 1016.5 1015.4 1013.5 1013.9 1013.3 1019.0 1023.0 1020.7 1018.7 1017.3 MAX. QNH PRESSURE IN HPA 1022.9 1024.8 1025.5 1022.7 1021.2 1018.8 1018.6 1017.0 1024.9 1025.9 1023.9 1029.1 1029.1 DAY 11 10 23 11 3 6 17 30 26 26 1 3 MIN. QNH PRESSURE IN HPA 1008.6 1011.5 1012.0 1006.3 1006.1 1007.8 1009.0 1009.2 1013.9 1018.3 1012.9 1012.1 1006.1 DAY 23 15 31 17 13 15 10 4 12 3 23 16 MEAN QFF PRESSURE IN HPA 1015.4 1016.2 1013.9 1008.9 1003.4 997.3 997.1 996.4 1006.4 1015.0 1015.9 1019.9 1008.8 MAX. QFF PRESSURE IN HPA 1022.5 1024.7 1023.6 1018.7 1011.4 1004.8 1003.6 1002.0 1016.2 1020.9 1025.4 1032.9 1032.9 DAY 11 8 23 11 3 1 18 29 27 27 29 3 MIN. QFF PRESSURE IN HPA 1007.7 1004.9 1005.1 998.0 994.2 990.8 991.6 991.7 999.8 1008.4 1005.3 1010.6 990.8 DAY 7 15 31 17 13 18 10 4 11 3 23 16 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 813.5 815.2 ****** ****** ****** ****** ****** ****** 816.6 819.8 817.4 815.8 ****** MAX. QFE PRESSURE IN HPA 819.3 820.9 ****** ****** ****** ****** ****** ****** 820.6 822.0 820.3 824.3 ****** DAY 11 10 ** ** ** ** ** ** 25 14 1 3 MIN. QFE PRESSURE IN HPA 807.8 810.8 ****** ****** ****** ****** ****** ****** 812.4 816.3 809.9 809.8 ****** DAY 23 15 ** ** ** ** ** ** 11 3 23 16 MEAN QNH PRESSURE IN HPA 1016.8 1018.8 ****** ****** ****** ****** ****** ****** 1020.5 1024.3 1021.4 1019.5 ****** MAX. QNH PRESSURE IN HPA 1023.7 1025.6 ****** ****** ****** ****** ****** ****** 1025.3 1026.9 1024.9 1029.7 ****** DAY 11 10 ** ** ** ** ** ** 25 14 1 3 MIN. QNH PRESSURE IN HPA 1009.9 1013.5 ****** ****** ****** ****** ****** ****** 1015.4 1020.1 1012.4 1012.3 ****** DAY 23 15 ** ** ** ** ** ** 11 3 23 16 MEAN QFF PRESSURE IN HPA 1015.8 1016.7 ****** ****** ****** ****** ****** ****** 1006.1 1014.3 1015.7 1020.5 ****** MAX. QFF PRESSURE IN HPA 1024.2 1026.4 ****** ****** ****** ****** ****** ****** 1015.3 1019.9 1026.0 1032.6 ****** DAY 11 9 ** ** ** ** ** ** 30 25 28 3 MIN. QFF PRESSURE IN HPA 1006.6 1007.7 ****** ****** ****** ****** ****** ****** 998.9 1007.3 1004.3 1012.5 ****** DAY 26 14 ** ** ** ** ** ** 11 3 23 16 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 813.4 815.2 ****** ****** ****** ****** ****** ****** 817.0 820.0 817.2 815.5 ****** MAX. QFE PRESSURE IN HPA 819.3 821.0 ****** ****** ****** ****** ****** ****** 821.0 823.1 820.5 824.1 ****** DAY 11 9 ** ** ** ** ** ** 26 26 1 3 MIN. QFE PRESSURE IN HPA 807.2 811.4 ****** ****** ****** ****** ****** ****** 812.9 816.3 809.0 809.9 ****** DAY 26 6 ** ** ** ** ** ** 11 2 23 16 MEAN QNH PRESSURE IN HPA 1016.6 1018.8 ****** ****** ****** ****** ****** ****** 1020.9 1024.5 1021.2 1019.1 ****** MAX. QNH PRESSURE IN HPA 1023.7 1025.7 ****** ****** ****** ****** ****** ****** 1025.7 1028.3 1025.1 1029.5 ****** DAY 11 9 ** ** ** ** ** ** 26 26 1 3 MIN. QNH PRESSURE IN HPA 1009.2 1014.2 ****** ****** ****** ****** ****** ****** 1016.0 1020.1 1011.4 1012.4 ****** DAY 26 6 ** ** ** ** ** ** 11 2 23 16 MEAN QFF PRESSURE IN HPA 1014.8 1015.2 ****** ****** ****** ****** ****** ****** 1006.0 1013.6 1014.4 1018.8 ****** MAX. QFF PRESSURE IN HPA 1023.5 1025.3 ****** ****** ****** ****** ****** ****** 1014.7 1020.9 1026.0 1032.4 ****** DAY 11 8 ** ** ** ** ** ** 30 26 28 3 MIN. QFF PRESSURE IN HPA 1004.2 1006.1 ****** ****** ****** ****** ****** ****** 999.7 1006.6 1002.4 1010.0 ****** DAY 26 14 ** ** ** ** ** ** 11 3 23 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.9 3.5 10.6 15.6 18.7 25.4 28.7 26.7 23.1 16.1 8.2 5.7 15.3 MINIMUN AIR TEMPERATURE (C) -3.6 -2.5 3.1 7.5 10.4 15.1 19.2 16.9 11.9 6.6 0.7 -1.2 7.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 11 2 0 0 0 0 13 DAYS WITH MINIMUM TEMP. <=-4 16 12 2 0 0 0 0 0 0 0 2 9 41 DAYS WITH FREEZING MIN.<= 0 25 21 8 3 0 0 0 0 0 1 14 20 92 TEMPERATURE RECORDS LOWEST(C) -9.8 -10.6 -4.8 -2.4 4.4 11.0 13.4 12.5 7.6 -1.4 -4.4 -7.2 -10.6 DAY 26 15 27 7 8 4 28 19 29 25 26 31 MAXIMUM AIR TEMPERATURE (C) 7.6 9.6 16.7 22.7 25.7 32.8 35.6 34.1 31.6 24.1 15.7 13.0 22.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 22 31 30 23 0 0 0 106 DAYS WITH MAXIMUM TEMP. <= 0 0 2 0 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS HIGHEST(C) 16.0 17.0 21.2 28.8 28.6 38.2 38.2 38.6 34.8 28.2 21.6 20.2 38.6 DAY 1 21 30 24 29 25 6 8 5 4 7 5 DIF. BETWEEN (MAX.-MIN.) (C) 11.2 12.1 13.6 15.2 15.3 17.7 16.4 17.2 19.7 17.5 15.0 14.2 15.4 MEAN DAILY TEMP. (MDT) (C) 2.0 3.5 9.9 15.1 18.0 24.0 27.4 25.5 21.7 15.3 8.2 5.9 14.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.2 94.0 198.1 139.0 34.7 0.0 0.0 0.0 466.0 HEATING DEG. DAYS(BASE 18 0C) 494.8 405.1 251.2 93.6 24.5 0.0 0.0 0.0 0.0 85.6 293.6 374.0 2022.3 DEWPOINT (MEAN C) -5.5 -6.8 -5.8 -2.2 0.2 0.3 1.7 0.6 -4.4 -6.2 -3.8 -4.9 -3.1 MIXING RATIO (G/KG) 3.22 2.97 3.47 4.27 5.04 4.96 5.51 5.19 3.52 2.98 3.68 3.39 4.02 VAPOUR PRESSURE (HPA) 4.19 3.86 4.51 5.55 6.55 6.42 7.13 6.71 4.58 3.91 4.81 4.43 5.22 SATURATION DEF. (HPA) 3.18 4.58 8.86 13.49 16.02 27.91 34.20 30.27 25.78 15.71 6.86 5.45 16.03 RELATIVE HUMIDITY (MEAN %) 63 50 35 33 33 21 19 20 17 23 47 50 34 RELATIVE HUMIDITY (MAX. %) 86 71 55 55 54 34 31 33 30 38 71 71 52 RELATIVE HUMIDITY (MIN. %) 37 32 22 19 18 13 12 12 9 12 26 30 20 RELATIVE HUMIDITY (MEAN% 03UTC) 77 68 51 52 52 33 31 32 29 38 67 68 50 RELATIVE HUMIDITY (MEAN% 09UTC) 44 39 26 22 23 16 14 14 11 14 31 34 24 RELATIVE HUMIDITY (MEAN% 15UTC) 54 38 27 24 23 14 13 14 11 16 36 40 26 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 24.2 0.3 1.7 11.0 7.2 0.0 0.0 4.0 0.0 0.0 12.4 27.8 88.6 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 0 1 1 DAYS WITH PRECIPITATION >= 5 2 0 0 1 1 0 0 0 0 0 1 3 8 DAYS WITH PRECIPITATION >= 1 5 0 1 3 2 0 0 1 0 0 3 3 18 DAYS WITH PRECIPITATION 8 1 5 3 7 0 0 1 0 0 4 5 34 GREATEST DAILY PRECIPITATION 8.0 0.3 1.0 7.0 5.0 0.0 0.0 4.0 0.0 0.0 6.1 15.0 15.0 DAY 6 26 12 30 25 ** ** 10 ** ** 8 25 DAY WITH THUNDER STORM 0 0 0 1 4 0 0 0 0 0 0 0 5 DAYS WITH SNOW OR SLEET 5 0 0 0 0 0 0 0 0 0 0 0 5 DAYS WITH DUST 0 0 0 0 7 0 3 1 0 0 2 0 13 WIND DIRECTION (PREVAILING) 225 225 225 225 270 45 45 45 45 45 225 45 270 PREVAILING WIND SPEED(KNOTS) 11.3 12.1 13.3 16.6 12.4 11.0 10.5 10.1 8.5 8.3 10.2 5.9 11.6 PREVAILING WIND PERCENT 12.1 15.6 23.0 13.8 14.9 14.6 16.9 19.8 10.8 9.7 12.1 6.0 9.9 CALMS PERCENT OF WIND 63.7 58.5 41.1 50.8 46.0 52.1 45.6 51.6 64.6 56.9 57.5 72.2 55.0 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 230 241 243 234 276 309 52 47 309 269 212 197 250 VECTOR WIND MAGNITUDE(KNOTS) 2.2 3.3 5.1 3.7 2.7 1.1 1.5 1.9 0.7 1.1 1.2 0.9 1.4 WIND STEADINESES (MEAN %) 64.7 75.0 72.9 58.7 42.9 21.6 28.3 42.2 21.2 27.5 32.4 34.6 30.4 WIND SPEED (MEAN KNOTS) 3.4 4.4 7.0 6.3 6.3 5.1 5.3 4.5 3.3 4.0 3.7 2.6 4.6 FASTEST WIND DIRECTION 200 240 270 230 210 120 310 240 270 210 270 180 240 FASTEST WIND SPEED (KNOTS) 29 43 43 43 39 43 29 31 31 41 35 29 43 DAY 3 1 9 4 3 14 16 30 27 21 22 24 DAYS WITH SKY CLEAR (0-2)/8 23 19 17 19 23 30 24 31 30 29 19 18 282 DAYS WITH P.CLOUDY (3-6)/8 4 7 9 8 8 0 7 0 0 2 9 10 64 DAYS WITH CLOUDY (7-8)/8 4 2 5 3 0 0 0 0 0 0 2 3 19 DAYS WITH VISIBILITY =< 2 KM 4 0 0 0 1 0 0 0 0 0 0 0 5 DURATION OF SUNSHINE HOURS 233.2 239.8 269.6 272.4 314.2 381.2 334.4 348.9 325.5 312.6 231.9 210.7 3474.4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 814.3 812.4 813.4 816.1 814.6 812.0 811.3 812.3 814.5 819.2 817.7 818.0 814.6 MAX. QFE PRESSURE IN HPA 820.4 819.6 818.6 821.2 819.0 818.1 815.9 817.6 818.5 825.5 822.9 824.1 825.5 DAY-HOUR 9- 6 15- 6 29- 6 21- 6 24-18 16- 6 28- 6 17- 6 26- 6 12- 6 23- 6 8- 6 MIN. QFE PRESSURE IN HPA 801.9 806.6 804.9 809.3 806.4 805.2 803.4 806.9 809.3 812.0 811.5 809.3 801.9 DAY-HOUR 23- 3 9-12 24-12 29-15 6- 0 27-15 5-15 8-15 5-15 4-12 8-21 25-21 MEAN QNH PRESSURE IN HPA 1017.7 1015.4 1016.6 1019.9 1018.1 1015.0 1014.2 1015.3 1017.9 1023.5 1021.8 1022.1 1018.1 MAX. QNH PRESSURE IN HPA 1025.0 1024.1 1022.9 1026.0 1023.3 1022.3 1019.6 1021.7 1022.7 1031.1 1028.0 1029.5 1031.1 DAY-HOUR 9- 6 15- 6 29- 6 21- 6 24-18 16- 6 28- 6 17- 6 26- 6 12- 6 23- 6 8- 6 MIN. QNH PRESSURE IN HPA 1002.9 1008.5 1006.4 1011.7 1008.2 1006.8 1004.6 1008.8 1011.7 1015.0 1014.4 1011.7 1002.9 DAY-HOUR 23- 3 9-12 24-12 29-15 6- 0 27-15 5-15 8-15 5-15 4-12 8-21 25-21 MEAN QFF PRESSURE IN HPA 1018.4 1014.7 1010.4 1009.9 1005.8 998.0 994.8 997.3 1002.6 1013.5 1017.5 1019.8 1008.6 MAX. QFF PRESSURE IN HPA 1029.4 1028.1 1018.6 1020.7 1012.2 1008.1 1005.0 1006.4 1009.7 1022.1 1026.7 1031.7 1031.7 DAY-HOUR 13- 6 15- 3 29- 3 9- 3 25- 3 4- 3 29- 3 18- 3 22- 3 24- 3 29- 6 31-15 MIN. QFF PRESSURE IN HPA 1002.7 1004.9 998.7 1000.0 996.4 987.6 985.9 989.0 994.8 1002.2 1005.9 1005.1 985.9 DAY-HOUR 23- 0 2- 0 24- 0 27- 0 5-12 19-12 5-12 8-12 5-12 4-12 8-12 23-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 814.2 812.2 813.1 816.0 814.8 812.3 811.3 812.5 814.5 819.2 817.7 817.9 814.6 MAX. QFE PRESSURE IN HPA 819.7 818.1 817.1 820.0 818.3 816.5 815.2 816.5 817.0 823.8 820.9 822.1 823.8 DAY 1 18 29 21 26 16 28 18 3 12 29 8 MIN. QFE PRESSURE IN HPA 802.7 807.2 806.4 810.9 806.4 807.2 805.7 808.2 811.6 814.2 812.5 810.2 802.7 DAY 23 5 24 30 6 28 6 8 5 4 9 24 MEAN QNH PRESSURE IN HPA 1017.6 1015.2 1016.3 1019.8 1018.3 1015.3 1014.1 1015.6 1018.0 1023.6 1021.8 1022.0 1018.1 MAX. QNH PRESSURE IN HPA 1024.2 1022.3 1021.1 1024.5 1022.5 1020.3 1018.8 1020.3 1020.9 1029.1 1025.6 1027.1 1029.1 DAY 1 18 29 21 26 16 28 18 3 12 29 8 MIN. QNH PRESSURE IN HPA 1003.8 1009.2 1008.2 1013.6 1008.2 1009.2 1007.4 1010.4 1014.5 1017.6 1015.6 1012.8 1003.8 DAY 23 5 24 30 6 28 6 8 5 4 9 24 MEAN QFF PRESSURE IN HPA 1017.5 1013.9 1009.6 1009.8 1006.1 998.6 994.9 997.7 1002.5 1013.2 1016.8 1019.0 1008.3 MAX. QFF PRESSURE IN HPA 1026.3 1026.1 1015.8 1018.7 1011.5 1006.9 1003.2 1005.4 1006.8 1018.9 1022.8 1029.0 1029.0 DAY 14 15 29 9 26 4 28 18 22 31 26 31 MIN. QFF PRESSURE IN HPA 1002.7 1004.9 998.7 1000.0 996.5 988.8 987.8 990.5 996.7 1005.0 1006.3 1005.5 987.8 DAY 23 2 24 27 6 27 6 9 6 4 8 24 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 814.2 812.5 813.7 816.7 815.3 813.0 812.1 813.2 815.5 819.8 818.1 818.2 815.2 MAX. QFE PRESSURE IN HPA 819.4 818.5 817.8 820.7 817.9 817.6 815.8 816.6 818.0 824.4 821.7 823.0 824.4 DAY 1 18 30 21 12 16 28 18 26 12 23 8 MIN. QFE PRESSURE IN HPA 801.9 807.1 806.7 810.8 806.6 807.9 806.3 808.7 812.2 814.4 814.2 810.6 801.9 DAY 23 9 24 30 6 28 6 8 5 4 9 24 MEAN QNH PRESSURE IN HPA 1017.6 1015.6 1017.0 1020.5 1018.9 1016.1 1015.1 1016.4 1019.1 1024.2 1022.3 1022.4 1018.8 MAX. QNH PRESSURE IN HPA 1023.8 1022.7 1021.9 1025.4 1022.0 1021.7 1019.5 1020.5 1022.1 1029.8 1026.6 1028.1 1029.8 DAY 1 18 30 21 12 16 28 18 26 12 23 8 MIN. QNH PRESSURE IN HPA 1002.9 1009.1 1008.6 1013.5 1008.5 1010.0 1008.1 1011.0 1015.2 1017.8 1017.6 1013.3 1002.9 DAY 23 9 24 30 6 28 6 8 5 4 9 24 MEAN QFF PRESSURE IN HPA 1019.2 1015.8 1012.1 1011.8 1007.9 1000.2 996.9 999.8 1005.8 1015.8 1019.3 1021.2 1010.5 MAX. QFF PRESSURE IN HPA 1028.2 1028.1 1018.6 1020.7 1012.2 1008.1 1005.0 1006.4 1009.7 1022.1 1025.4 1030.1 1030.1 DAY 13 15 29 9 25 4 29 18 22 24 29 31 MIN. QFF PRESSURE IN HPA 1003.5 1007.1 1001.2 1001.7 998.8 992.4 989.2 993.4 999.8 1007.3 1008.2 1006.7 989.2 DAY 23 5 24 27 6 27 6 9 6 21 6 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 815.4 813.7 814.6 817.3 815.7 813.3 812.5 813.7 816.1 820.6 819.2 819.3 815.9 MAX. QFE PRESSURE IN HPA 820.4 819.6 818.6 821.2 818.6 818.1 815.9 817.6 818.5 825.5 822.9 824.1 825.5 DAY 9 15 29 21 19 16 28 17 26 12 23 8 MIN. QFE PRESSURE IN HPA 806.6 807.8 806.4 811.3 806.7 808.3 806.7 809.3 812.3 814.7 814.7 811.8 806.4 DAY 23 9 24 30 6 27 5 8 5 4 8 24 MEAN QNH PRESSURE IN HPA 1019.1 1016.9 1018.0 1021.3 1019.4 1016.5 1015.6 1017.0 1019.8 1025.2 1023.5 1023.7 1019.7 MAX. QNH PRESSURE IN HPA 1025.0 1024.1 1022.9 1026.0 1022.9 1022.3 1019.6 1021.7 1022.7 1031.1 1028.0 1029.5 1031.1 DAY 9 15 29 21 19 16 28 17 26 12 23 8 MIN. QNH PRESSURE IN HPA 1008.5 1009.9 1008.2 1014.1 1008.6 1010.5 1008.6 1011.7 1015.3 1018.2 1018.2 1014.7 1008.2 DAY 23 9 24 30 6 27 5 8 5 4 8 24 MEAN QFF PRESSURE IN HPA 1020.4 1016.5 1011.8 1010.7 1006.5 999.0 995.5 998.3 1003.8 1014.7 1019.5 1021.9 1009.9 MAX. QFF PRESSURE IN HPA 1029.4 1027.5 1016.2 1019.1 1010.8 1006.7 1002.3 1004.3 1008.9 1021.9 1026.7 1030.4 1030.4 DAY 13 15 28 8 8 4 29 17 22 31 29 31 MIN. QFF PRESSURE IN HPA 1007.2 1008.5 1000.3 1001.9 998.6 991.3 988.3 992.6 997.5 1005.3 1009.4 1008.2 988.3 DAY 3 5 24 27 6 20 5 9 5 4 6 24 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 814.5 812.8 813.5 816.3 814.7 812.4 811.7 812.7 814.7 819.3 817.8 818.1 814.9 MAX. QFE PRESSURE IN HPA 819.9 818.6 817.2 820.2 817.7 817.6 815.0 816.4 817.4 824.6 821.7 822.6 824.6 DAY 9 15 29 20 17 16 29 17 26 11 23 8 MIN. QFE PRESSURE IN HPA 807.0 807.7 805.6 810.6 806.5 807.3 805.7 808.2 811.4 813.4 813.1 812.5 805.6 DAY 23 7 24 30 6 27 6 8 5 4 8 24 MEAN QNH PRESSURE IN HPA 1018.0 1015.9 1016.8 1020.1 1018.2 1015.5 1014.6 1015.7 1018.2 1023.7 1021.9 1022.3 1018.4 MAX. QNH PRESSURE IN HPA 1024.4 1022.9 1021.2 1024.8 1021.8 1021.7 1018.6 1020.2 1021.4 1030.1 1026.6 1027.7 1030.1 DAY 9 15 29 20 17 16 29 17 26 11 23 8 MIN. QNH PRESSURE IN HPA 1009.0 1009.8 1007.3 1013.3 1008.4 1009.3 1007.4 1010.4 1014.2 1016.6 1016.3 1015.6 1007.3 DAY 23 7 24 30 6 27 6 8 5 4 8 24 MEAN QFF PRESSURE IN HPA 1018.1 1014.6 1009.8 1009.4 1005.3 997.8 994.4 996.9 1001.9 1012.6 1016.7 1019.0 1008.0 MAX. QFF PRESSURE IN HPA 1027.4 1025.9 1015.4 1018.3 1008.9 1005.2 1001.5 1003.9 1007.3 1019.4 1023.0 1030.3 1030.3 DAY 13 15 28 9 10 4 28 17 22 31 29 31 MIN. QFF PRESSURE IN HPA 1003.0 1008.7 999.8 1000.7 998.5 989.4 986.8 990.5 995.9 1004.5 1008.0 1009.2 986.8 DAY 3 2 24 30 6 19 6 8 5 4 8 24 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 813.4 811.4 812.2 814.9 813.4 810.9 810.4 811.0 812.9 817.9 816.5 816.9 813.5 MAX. QFE PRESSURE IN HPA 818.7 817.0 815.4 818.5 816.5 816.5 813.6 814.9 815.6 823.2 820.7 821.1 823.2 DAY 9 15 13 20 17 16 28 17 2 11 23 8 MIN. QFE PRESSURE IN HPA 806.5 806.6 804.9 809.5 806.5 805.7 804.0 807.1 809.5 812.0 811.6 811.5 804.0 DAY 23 9 24 30 5 19 5 8 5 4 8 25 MEAN QNH PRESSURE IN HPA 1016.7 1014.3 1015.2 1018.5 1016.7 1013.6 1013.0 1013.8 1016.1 1022.0 1020.4 1020.8 1016.8 MAX. QNH PRESSURE IN HPA 1023.0 1020.9 1019.0 1022.7 1020.3 1020.3 1016.9 1018.4 1019.3 1028.4 1025.4 1025.9 1028.4 DAY 9 15 13 20 17 16 28 17 2 11 23 8 MIN. QNH PRESSURE IN HPA 1008.4 1008.5 1006.4 1012.0 1008.4 1007.4 1005.4 1009.1 1012.0 1015.0 1014.5 1014.4 1005.4 DAY 23 9 24 30 5 19 5 8 5 4 8 25 MEAN QFF PRESSURE IN HPA 1016.6 1012.9 1008.6 1008.4 1004.4 996.8 993.8 995.9 1000.6 1011.8 1015.4 1017.9 1006.9 MAX. QFF PRESSURE IN HPA 1025.6 1023.8 1013.9 1016.4 1009.5 1005.3 1001.3 1003.0 1005.0 1017.7 1020.6 1029.2 1029.2 DAY 13 15 27 8 24 4 28 18 25 24 29 31 MIN. QFF PRESSURE IN HPA 1002.8 1006.0 999.1 1000.9 996.4 987.6 985.9 989.0 994.8 1002.2 1005.9 1009.1 985.9 DAY 3 4 24 30 5 19 5 8 5 4 8 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MEANS AND EXTREMES FOR THE YEAR 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 814.0 811.7 812.6 815.1 813.5 810.6 810.0 810.8 813.0 818.2 817.1 817.4 813.7 MAX. QFE PRESSURE IN HPA 819.1 817.6 815.8 818.1 817.8 815.6 813.4 814.5 815.6 823.2 821.6 821.5 823.2 DAY 9 16 13 20 18 16 28 17 2 12 23 7 MIN. QFE PRESSURE IN HPA 806.8 807.1 807.1 809.3 807.0 805.2 803.4 806.9 809.3 812.2 812.0 811.1 803.4 DAY 10 8 24 29 5 27 5 8 5 4 8 25 MEAN QNH PRESSURE IN HPA 1017.4 1014.7 1015.7 1018.6 1016.8 1013.3 1012.5 1013.5 1016.2 1022.4 1021.1 1021.4 1017.0 MAX. QNH PRESSURE IN HPA 1023.5 1021.7 1019.5 1022.3 1021.9 1019.3 1016.6 1018.0 1019.3 1028.4 1026.5 1026.3 1028.4 DAY 9 16 13 20 18 16 28 17 2 12 23 7 MIN. QNH PRESSURE IN HPA 1008.7 1009.1 1009.1 1011.7 1009.0 1006.8 1004.6 1008.8 1011.7 1015.2 1015.0 1013.9 1004.6 DAY 10 8 24 29 5 27 5 8 5 4 8 25 MEAN QFF PRESSURE IN HPA 1018.9 1014.7 1010.7 1010.0 1005.7 997.2 994.3 996.9 1002.8 1013.9 1018.1 1020.3 1008.6 MAX. QFF PRESSURE IN HPA 1028.0 1025.0 1016.0 1018.7 1011.6 1004.3 1001.9 1003.2 1007.0 1020.2 1024.2 1031.7 1031.7 DAY 13 15 28 8 24 3 28 17 30 24 29 31 MIN. QFF PRESSURE IN HPA 1006.7 1007.1 1004.3 1002.3 999.3 989.0 986.0 990.9 996.0 1004.8 1008.8 1010.5 986.0 DAY 19 21 24 29 5 19 5 8 5 4 8 23 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 814.6 812.5 813.6 816.3 814.8 811.7 811.3 812.1 814.4 819.1 817.8 818.0 814.7 MAX. QFE PRESSURE IN HPA 819.7 818.2 817.3 819.4 819.0 816.4 814.8 815.7 816.9 823.6 821.9 822.1 823.6 DAY 9 17 28 20 24 16 28 17 2 12 23 7 MIN. QFE PRESSURE IN HPA 806.3 807.6 808.6 810.4 807.9 806.3 805.2 807.8 810.9 813.7 811.7 810.7 805.2 DAY 10 8 23 29 5 27 5 8 5 4 8 25 MEAN QNH PRESSURE IN HPA 1018.1 1015.5 1016.9 1020.2 1018.4 1014.6 1014.1 1015.1 1017.9 1023.5 1021.9 1022.2 1018.2 MAX. QNH PRESSURE IN HPA 1024.2 1022.4 1021.3 1023.8 1023.3 1020.2 1018.3 1019.4 1020.8 1028.9 1026.8 1027.1 1028.9 DAY 9 17 28 20 24 16 28 17 2 12 23 7 MIN. QNH PRESSURE IN HPA 1008.1 1009.7 1010.9 1013.0 1010.0 1008.1 1006.8 1009.9 1013.6 1017.0 1014.6 1013.4 1006.8 DAY 10 8 23 29 5 27 5 8 5 4 8 25 MEAN QFF PRESSURE IN HPA 1019.2 1015.1 1010.6 1009.6 1005.4 997.0 994.1 996.4 1001.9 1013.1 1017.9 1020.5 1008.4 MAX. QFF PRESSURE IN HPA 1027.8 1024.1 1014.9 1018.5 1011.6 1004.4 1000.7 1003.2 1006.6 1019.6 1023.9 1031.3 1031.3 DAY 13 16 28 6 24 3 28 17 25 30 28 31 MIN. QFF PRESSURE IN HPA 1007.5 1007.3 1002.2 1000.9 998.8 989.7 986.2 989.9 995.8 1003.5 1009.0 1008.4 986.2 DAY 10 1 23 29 5 27 5 8 5 4 8 23 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 814.3 812.4 813.6 816.3 815.1 812.1 811.6 812.7 814.7 819.3 817.7 817.9 814.8 MAX. QFE PRESSURE IN HPA 819.4 818.8 817.6 820.2 818.8 816.4 815.3 816.1 816.9 823.8 821.2 822.1 823.8 DAY 21 17 28 20 24 15 28 17 2 11 23 7 MIN. QFE PRESSURE IN HPA 805.8 807.0 808.2 810.6 807.4 807.2 805.8 808.4 811.4 814.0 811.5 809.3 805.8 DAY 22 4 23 29 5 27 5 8 5 4 8 25 MEAN QNH PRESSURE IN HPA 1017.7 1015.4 1016.9 1020.1 1018.6 1015.1 1014.5 1015.8 1018.2 1023.8 1021.7 1022.1 1018.3 MAX. QNH PRESSURE IN HPA 1023.8 1023.1 1021.7 1024.8 1023.1 1020.2 1018.9 1019.9 1020.8 1029.1 1026.0 1027.1 1029.1 DAY 21 17 28 20 24 15 28 17 2 11 23 7 MIN. QNH PRESSURE IN HPA 1007.5 1009.0 1010.4 1013.3 1009.4 1009.2 1007.5 1010.6 1014.2 1017.4 1014.4 1011.7 1007.5 DAY 22 4 23 29 5 27 5 8 5 4 8 25 MEAN QFF PRESSURE IN HPA 1017.7 1014.2 1009.9 1009.5 1005.7 997.4 994.3 996.9 1001.8 1012.8 1016.6 1018.9 1008.0 MAX. QFF PRESSURE IN HPA 1026.6 1026.0 1015.2 1018.8 1010.2 1004.9 1001.6 1003.5 1006.7 1019.0 1023.3 1031.3 1031.3 DAY 13 14 28 8 24 3 28 17 21 30 25 31 MIN. QFF PRESSURE IN HPA 1007.0 1005.2 1001.4 1000.1 998.0 989.7 987.5 990.2 995.5 1003.4 1007.7 1005.1 987.5 DAY 19 4 23 29 5 26 5 2 5 4 5 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1993-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.2 5.8 9.8 15.8 20.8 26.3 28.9 27.5 23.1 16.6 9.7 5.2 16.0 MINIMUN AIR TEMPERATURE (C) -3.5 -1.5 2.1 7.6 11.1 15.1 18.6 16.3 11.7 6.4 1.6 -1.8 7.0 DAYS WITH MINIMUM TEMP. >=21 0.0 0.0 0.0 0.0 0.0 0.6 6.3 1.8 0.0 0.0 0.0 0.0 8.7 DAYS WITH MINIMUM TEMP. <=-4 15.5 9.0 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.3 10.2 38.5 DAYS WITH FREEZING MIN.<= 0 24.0 18.9 9.7 0.5 0.0 0.0 0.0 0.0 0.0 0.3 11.6 20.5 85.5 TEMPERATURE RECORDS LOWEST(C) -20.0 -13.2 -7.2 -2.4 4.0 8.4 11.0 9.4 2.8 -1.4 -10.6 -13.8 -20.0 YEAR-DAY 96-15 97- 8 3- 2 5- 7 97- 6 96- 7 0-21 97-30 94-23 5-25 95-29 95-15 96-15 MAXIMUM AIR TEMPERATURE (C) 8.8 11.7 15.5 21.6 26.8 32.6 35.0 34.2 30.4 23.7 16.0 11.3 22.3 DAYS WITH MAXIMUM TEMP. >=30 0.0 0.0 0.0 0.0 5.8 25.6 30.3 30.7 18.5 0.2 0.0 0.0 111.1 DAYS WITH MAXIMUM TEMP. <= 0 0.9 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 1.5 TEMPERATURE RECORDS HIGHEST(C) 18.4 20.4 24.2 29.0 35.0 38.2 40.2 38.8 35.0 31.2 23.2 22.2 40.2 YEAR-DAY 3-13 97-21 1-31 96-26 0-30 5-25 98-10 94- 6 96-10 98- 1 1- 7 98-17 98-10 DIF. BETWEEN (MAX.-MIN.) (C) 12.3 13.2 13.4 14.0 15.7 17.5 16.4 17.9 18.7 17.3 14.4 13.1 15.3 MEAN DAILY TEMP. (MDT) (C) 2.7 5.1 8.8 14.6 18.9 23.9 26.8 25.2 21.1 15.0 8.8 4.8 14.6 STANDARD DEVIATION OF MDT(C) 1.64 1.20 1.20 1.19 1.01 0.56 1.33 0.70 1.07 1.07 1.00 2.08 1.17 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 8.1 88.6 179.8 131.8 29.5 0.2 0.0 0.0 438.0 HEATING DEG. DAYS(BASE 18 0C) 475.5 363.3 285.3 107.1 19.5 0.2 0.0 0.0 4.8 96.4 275.2 410.4 2037.7 DEWPOINT (MEAN C) -5.6 -6.0 -4.1 -0.8 0.9 2.0 4.0 2.0 -0.4 -1.5 -2.9 -4.1 -1.4 MIXING RATIO (G/KG) 3.25 3.21 3.73 4.69 5.30 5.70 6.53 5.67 4.79 4.39 4.03 3.63 4.58 VAPOUR PRESSURE (HPA) 4.22 4.17 4.85 6.09 6.88 7.37 8.42 7.34 6.22 5.74 5.25 4.73 5.94 SATURATION DEF. (HPA) 3.95 5.61 7.93 12.78 18.95 28.57 33.33 31.40 23.90 14.44 7.64 4.73 16.10 RELATIVE HUMIDITY (MEAN %) 58 47 43 36 30 23 22 21 23 32 46 56 36 RELATIVE HUMIDITY (MAX. %) 79 71 66 59 49 37 35 34 37 50 66 77 55 RELATIVE HUMIDITY (MIN. %) 38 29 28 23 19 15 15 14 15 21 30 37 24 RELATIVE HUMIDITY (MEAN% 03UTC) 75 67 64 57 48 37 35 33 37 49 64 73 53 RELATIVE HUMIDITY (MEAN% 09UTC) 46 36 34 27 23 18 18 16 18 24 35 43 28 RELATIVE HUMIDITY (MEAN% 15UTC) 52 39 35 30 24 17 17 16 18 27 39 50 30 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 28.3 17.3 30.0 15.9 7.1 2.4 0.5 0.5 0.0 3.1 14.1 24.8 144.0 DAYS WITH PRECIPITATION >=10 0.8 0.4 1.1 0.4 0.2 0.1 0.0 0.0 0.0 0.0 0.3 1.0 4.3 DAYS WITH PRECIPITATION >= 5 1.7 1.2 1.9 1.2 0.7 0.1 0.0 0.0 0.0 0.2 0.8 1.8 9.6 DAYS WITH PRECIPITATION >= 1 3.8 2.6 3.6 2.9 1.6 0.4 0.2 0.2 0.0 0.8 2.3 3.7 22.1 DAYS WITH PRECIPITATION 6.4 4.8 7.2 5.4 3.9 0.9 0.9 0.4 0.2 2.2 4.2 6.5 43.0 GREATEST DAILY PRECIPITATION 30.0 28.0 33.0 22.3 11.0 22.0 3.0 4.0 0.2 8.0 40.0 24.0 40.0 YEAR-DAY 4- 7 95- 6 98-18 3-21 93- 6 95- 1 98-16 5-10 98-14 98-11 94-17 3- 6 94 DAY WITH THUNDER STORM 0.0 0.0 0.1 0.8 1.3 0.2 0.4 0.0 0.0 0.6 0.3 0.0 3.7 DAYS WITH SNOW OR SLEET 2.8 1.1 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 1.2 5.9 DAYS WITH DUST 0.3 0.9 2.1 1.8 2.9 1.2 1.1 0.2 0.8 0.5 0.5 0.3 12.6 WIND DIRECTION (PREVAILING) 225 225 225 225 270 45 45 45 45 45 225 225 225 PREVAILING WIND SPEED(KNOTS) 13.3 14.8 14.8 15.0 14.8 10.2 10.6 9.6 8.5 7.9 13.1 12.6 13.7 PREVAILING WIND PERCENT 8.6 17.2 17.3 16.9 15.2 13.3 20.9 22.2 14.4 9.9 10.3 9.6 9.9 CALMS PERCENT OF WIND 65.2 51.5 45.6 44.2 45.1 49.6 48.5 52.3 59.1 60.1 62.3 67.4 54.2 NO. OF WIND OBSERVATION 195.9 181.2 190.8 184.5 190.8 184.6 190.8 198.0 198.5 205.1 198.5 205.1 2323.8 VECTOR WIND DIRECTION (MEAN) 235 234 231 240 253 295 41 37 341 275 237 226 251 VECTOR WIND MAGNITUDE(KNOTS) 2.0 4.0 3.9 4.4 3.5 1.1 2.0 2.6 0.9 1.1 1.4 1.5 1.5 WIND STEADINESES (MEAN %) 52.6 67.8 57.4 60.3 53.0 20.0 37.0 57.8 22.5 27.5 35.9 45.5 29.4 WIND SPEED (MEAN KNOTS) 3.8 5.9 6.8 7.3 6.6 5.5 5.4 4.5 4.0 4.0 3.9 3.3 5.1 FASTEST WIND DIRECTION 200 210 240 190 270 120 300 250 330 210 210 210 270 FASTEST WIND SPEED (KNOTS) 49 54 58 49 68 43 54 39 43 41 68 45 68 YEAR-DAY 97-16 4-14 98-31 98-23 97-19 5-14 98-14 1-31 1-23 5-21 1-18 2-21 97 DAYS WITH SKY CLEAR (0-2)/8 17.9 16.7 15.5 13.5 20.2 27.2 25.2 27.8 28.2 24.7 17.1 16.8 250.8 DAYS WITH P.CLOUDY (3-6)/8 8.6 9.8 10.7 12.4 9.4 2.7 5.8 3.2 1.8 6.2 10.1 10.9 91.6 DAYS WITH CLOUDY (7-8)/8 4.5 1.7 4.8 4.2 1.5 0.2 0.0 0.0 0.0 0.2 2.8 3.2 23.1 DAYS WITH VISIBILITY =< 2 KM 1.7 0.2 0.5 0.2 0.5 0.0 0.1 0.2 0.1 0.0 0.3 1.7 5.5 DURATION OF SUNSHINE HOURS 220.8 237.2 258.8 256.6 330.2 343.1 337.1 352.5 318.0 291.1 223.4 211.5 3380.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1993-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 814.7 813.7 813.5 814.6 814.7 812.1 810.9 812.9 815.3 818.4 817.6 817.1 814.6 MAX. QFE PRESSURE IN HPA 824.0 824.8 824.9 824.4 822.6 819.5 819.1 819.7 824.8 825.5 827.1 826.7 827.1 YEAR-DAY 3-12 2- 6 2-11 98-12 98- 8 98- 6 0-30 99-20 94-23 5-12 96-18 98-10 96-18 MIN. QFE PRESSURE IN HPA 800.9 717.4 801.3 803.4 804.1 804.0 803.4 804.4 805.9 811.0 807.1 805.0 717.4 YEAR-DAY 98-13 96- 9 96-15 2- 3 4-13 3-30 5- 5 96- 8 0- 1 96- 5 1-18 94- 4 96- 9 MEAN QNH PRESSURE IN HPA 1018.2 1016.9 1016.7 1018.1 1018.1 1015.1 1013.6 1016.1 1019.0 1022.6 1021.6 1021.1 1018.1 MAX. QNH PRESSURE IN HPA 1029.3 1030.3 1030.4 1029.8 1027.7 1023.9 1023.5 1024.2 1030.3 1031.1 1033.0 1032.6 1033.0 YEAR-DAY 3-12 2- 6 2-11 98-12 98- 8 98- 6 0-30 99-20 94-23 5-12 96-18 98-10 96-18 MIN. QNH PRESSURE IN HPA 1001.6 901.4 1002.1 1004.6 1005.5 1005.4 1004.6 1005.8 1007.6 1013.8 1009.1 1006.6 901.4 YEAR-DAY 98-13 96- 9 96-15 2- 3 4-13 3-30 5- 5 96- 8 0- 1 96- 5 1-18 94- 4 96- 9 MEAN QFF PRESSURE IN HPA 1018.3 1015.4 1011.4 1008.1 1004.3 997.4 994.7 998.5 1004.2 1012.9 1017.0 1019.1 1008.4 MAX. QFF PRESSURE IN HPA 1031.7 1033.2 1029.3 1020.7 1016.4 1008.1 1007.0 1008.0 1018.3 1024.2 1033.9 1034.5 1034.5 YEAR-DAY 1-29 2- 6 3- 2 5- 9 3- 2 5- 4 0-30 0-21 4-27 93- 9 3-25 3-12 3-12 MIN. QFF PRESSURE IN HPA 1000.5 999.4 995.5 995.5 993.5 986.7 983.6 988.5 990.5 1001.2 1001.8 1001.4 983.6 YEAR-DAY 3-28 3-19 3-26 2- 3 1-25 0-25 3-26 3- 1 0- 2 0- 1 1-18 2-21 3-26 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 814.6 813.7 813.6 814.8 814.3 811.9 811.2 813.2 815.5 818.7 817.5 816.7 814.6 MAX. QFE PRESSURE IN HPA 822.2 823.0 823.2 821.5 818.8 817.1 817.9 817.4 821.2 823.8 825.7 823.9 825.7 YEAR-DAY 3-12 2- 6 2-11 3- 8 3- 2 3- 4 0-31 93-31 4-27 5-12 3-26 93-27 3-26 MIN. QFE PRESSURE IN HPA 802.7 804.7 803.6 804.7 806.4 806.6 805.0 808.2 807.8 813.3 808.1 805.7 802.7 YEAR-DAY 5-23 3-19 1-26 2- 4 5- 6 3-30 3-26 0-31 0- 2 0- 2 1-19 2-22 5-23 MEAN QNH PRESSURE IN HPA 1018.1 1017.0 1016.9 1018.3 1017.7 1014.8 1014.0 1016.4 1019.1 1023.0 1021.5 1020.6 1018.1 MAX. QNH PRESSURE IN HPA 1027.2 1028.1 1028.4 1026.3 1023.1 1021.1 1022.0 1021.4 1026.0 1029.1 1031.4 1029.2 1031.4 YEAR-DAY 3-12 2- 6 2-11 3- 8 3- 2 3- 4 0-31 93-31 4-27 5-12 3-26 93-27 3-26 MIN. QNH PRESSURE IN HPA 1003.8 1006.2 1004.9 1006.2 1008.2 1008.5 1006.6 1010.4 1009.9 1016.5 1010.3 1007.4 1003.8 YEAR-DAY 5-23 3-19 1-26 2- 4 5- 6 3-30 3-26 0-31 0- 2 0- 2 1-19 2-22 5-23 MEAN QFF PRESSURE IN HPA 1017.4 1014.6 1010.8 1007.9 1004.5 997.9 994.9 998.6 1004.0 1012.5 1016.3 1018.2 1008.1 MAX. QFF PRESSURE IN HPA 1029.8 1030.2 1026.8 1018.7 1014.9 1006.9 1006.1 1005.4 1015.0 1021.3 1031.2 1031.7 1031.7 YEAR-DAY 1-29 2- 6 3- 3 5- 9 3- 2 5- 4 0-31 5-18 4-28 4-27 3-26 4- 4 4- 4 MIN. QFF PRESSURE IN HPA 1002.7 1001.2 998.7 998.4 994.7 988.7 985.1 990.5 992.7 1003.1 1003.1 1004.1 985.1 YEAR-DAY 5-23 1-21 5-24 2- 3 1-26 1-30 3-26 3- 1 0- 2 1- 2 1-19 2-22 3-26 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 814.8 813.9 813.8 815.1 815.3 813.1 811.7 813.8 816.2 819.0 817.9 817.2 815.2 MAX. QFE PRESSURE IN HPA 823.0 823.6 823.7 824.0 821.6 819.1 818.4 819.3 824.1 824.4 826.1 825.8 826.1 YEAR-DAY 99- 3 2- 6 2-11 98-12 98- 8 93-23 96- 4 96-30 94-23 93-17 96-19 98-10 96-19 MIN. QFE PRESSURE IN HPA 801.1 802.2 801.3 804.9 806.6 806.8 805.9 808.4 808.7 812.7 809.1 805.0 801.1 YEAR-DAY 98-13 96- 5 96-15 4-17 5- 6 99-25 97-16 94- 1 0- 2 96- 6 1-19 94- 4 98-13 MEAN QNH PRESSURE IN HPA 1018.3 1017.2 1017.1 1018.7 1018.9 1016.2 1014.6 1017.1 1019.9 1023.4 1022.0 1021.2 1018.7 MAX. QNH PRESSURE IN HPA 1028.1 1028.9 1029.0 1029.3 1026.5 1023.5 1022.6 1023.7 1029.5 1029.8 1031.8 1031.5 1031.8 YEAR-DAY 99- 3 2- 6 2-11 98-12 98- 8 93-23 96- 4 96-30 94-23 93-17 96-19 98-10 96-19 MIN. QNH PRESSURE IN HPA 1001.9 1003.2 1002.1 1006.4 1008.5 1008.7 1007.6 1010.6 1011.0 1015.8 1011.5 1006.6 1001.9 YEAR-DAY 98-13 96- 5 96-15 4-17 5- 6 99-25 97-16 94- 1 0- 2 96- 6 1-19 94- 4 98-13 MEAN QFF PRESSURE IN HPA 1019.6 1016.3 1013.2 1010.3 1007.0 1000.3 996.8 1000.7 1006.9 1015.2 1018.5 1021.1 1010.5 MAX. QFF PRESSURE IN HPA 1035.8 1032.2 1029.2 1022.3 1016.6 1013.6 1007.0 1008.5 1023.6 1024.9 1033.9 1034.0 1035.8 YEAR-DAY 96-15 2- 6 2-11 98-12 98- 3 95- 1 0-30 96-31 94-23 95-27 3-25 4- 4 96-15 MIN. QFF PRESSURE IN HPA 1001.9 1000.9 999.6 996.1 995.4 990.3 988.1 992.4 996.4 1004.1 1004.4 1002.3 988.1 YEAR-DAY 98-13 96- 5 96-15 4-17 4-13 99-25 97-16 94- 1 0- 2 95-13 4-23 2-21 97-16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1993-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 815.9 814.6 814.7 815.7 815.8 813.4 812.1 814.3 816.9 819.9 818.9 818.3 815.9 MAX. QFE PRESSURE IN HPA 824.0 824.8 824.9 824.4 822.6 819.5 819.1 819.7 824.8 825.5 827.1 826.7 827.1 YEAR-DAY 3-12 2- 6 2-11 98-12 98- 8 98- 6 0-30 99-20 94-23 5-12 96-18 98-10 96-18 MIN. QFE PRESSURE IN HPA 801.4 717.4 803.3 804.9 806.7 806.9 806.1 808.4 809.1 813.8 809.6 806.2 717.4 YEAR-DAY 98-13 96- 9 97-29 2- 3 5- 6 99-25 97-16 94- 2 0- 1 96- 5 1-18 94- 4 96- 9 MEAN QNH PRESSURE IN HPA 1019.6 1018.1 1018.2 1019.4 1019.5 1016.6 1015.1 1017.7 1020.8 1024.4 1023.2 1022.5 1019.6 MAX. QNH PRESSURE IN HPA 1029.3 1030.3 1030.4 1029.8 1027.7 1023.9 1023.5 1024.2 1030.3 1031.1 1033.0 1032.6 1033.0 YEAR-DAY 3-12 2- 6 2-11 98-12 98- 8 98- 6 0-30 99-20 94-23 5-12 96-18 98-10 96-18 MIN. QNH PRESSURE IN HPA 1002.3 901.4 1004.5 1006.4 1008.6 1008.8 1007.9 1010.6 1011.5 1017.1 1012.1 1008.0 901.4 YEAR-DAY 98-13 96- 9 97-29 2- 3 5- 6 99-25 97-16 94- 2 0- 1 96- 5 1-18 94- 4 96- 9 MEAN QFF PRESSURE IN HPA 1020.2 1017.2 1013.0 1009.1 1005.0 998.5 995.7 999.5 1005.5 1014.3 1018.7 1021.1 1009.8 MAX. QFF PRESSURE IN HPA 1031.3 1033.2 1028.5 1019.1 1016.4 1006.7 1006.2 1006.3 1017.6 1023.3 1033.7 1034.5 1034.5 YEAR-DAY 3-12 2- 6 2-11 5- 8 3- 2 5- 4 0-31 1-14 4-27 4-27 3-25 3-12 3-12 MIN. QFF PRESSURE IN HPA 1006.2 1002.6 1000.3 998.2 995.7 988.8 987.0 992.6 994.2 1003.2 1004.9 1002.6 987.0 YEAR-DAY 4-27 3-20 5-24 2- 3 1-25 3-30 3-30 5- 9 0- 1 0- 1 4-23 2-21 3-30 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 814.9 814.0 813.8 814.8 814.9 812.4 811.2 813.3 815.7 818.6 817.6 817.2 814.9 MAX. QFE PRESSURE IN HPA 822.6 823.7 824.1 823.9 821.8 818.6 818.3 818.6 824.0 824.6 825.8 825.2 825.8 YEAR-DAY 3-12 2- 6 2-11 98-12 98- 8 98- 6 0-30 99-19 94-23 5-11 96-18 98-10 96-18 MIN. QFE PRESSURE IN HPA 800.9 804.0 802.0 803.4 806.0 805.5 805.1 804.4 807.9 812.3 809.3 805.3 800.9 YEAR-DAY 98-13 0- 7 97-29 2- 3 4-13 3-30 97-16 96- 8 0- 1 96- 5 1-18 94- 4 98-13 MEAN QNH PRESSURE IN HPA 1018.4 1017.4 1017.1 1018.3 1018.4 1015.4 1014.0 1016.5 1019.4 1022.8 1021.7 1021.1 1018.4 MAX. QNH PRESSURE IN HPA 1027.7 1029.0 1029.5 1029.2 1026.7 1022.9 1022.5 1022.9 1029.3 1030.1 1031.5 1030.8 1031.5 YEAR-DAY 3-12 2- 6 2-11 98-12 98- 8 98- 6 0-30 99-19 94-23 5-11 96-18 98-10 96-18 MIN. QNH PRESSURE IN HPA 1001.6 1005.4 1003.0 1004.6 1007.8 1007.2 1006.7 1005.8 1010.0 1015.3 1011.7 1006.9 1001.6 YEAR-DAY 98-13 0- 7 97-29 2- 3 4-13 3-30 97-16 96- 8 0- 1 96- 5 1-18 94- 4 98-13 MEAN QFF PRESSURE IN HPA 1017.8 1015.0 1011.2 1007.8 1003.9 997.1 994.4 998.1 1003.5 1012.0 1016.2 1018.2 1007.9 MAX. QFF PRESSURE IN HPA 1029.2 1029.5 1026.4 1018.3 1014.9 1005.2 1004.3 1005.4 1015.0 1021.0 1031.0 1032.2 1032.2 YEAR-DAY 1-29 2- 6 3- 2 5- 9 3- 2 5- 4 0-30 1-14 4-27 4-27 3-25 3-12 3-12 MIN. QFF PRESSURE IN HPA 1003.0 999.7 997.5 995.5 994.1 987.4 985.0 990.5 991.9 1002.3 1003.2 1003.7 985.0 YEAR-DAY 5- 3 3-20 3-26 2- 3 1-25 3-30 3-26 5- 8 0- 2 0- 2 4-23 2-21 3-26 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 813.7 812.7 812.4 813.6 813.6 811.0 809.8 811.8 814.0 817.2 816.5 816.1 813.5 MAX. QFE PRESSURE IN HPA 821.4 821.8 821.5 822.3 820.4 816.9 817.9 816.9 822.8 823.2 824.8 824.6 824.8 YEAR-DAY 95- 7 98-23 2-11 98-12 98- 8 98- 5 96- 3 1-14 94-23 5-11 96-18 98- 9 96-18 MIN. QFE PRESSURE IN HPA 802.5 803.4 802.3 803.8 804.1 804.0 803.7 806.5 805.9 811.0 807.2 805.1 802.3 YEAR-DAY 3-28 3-19 97-29 2- 3 4-13 3-30 3-26 94- 1 0- 1 96- 5 1-18 94- 4 97-29 MEAN QNH PRESSURE IN HPA 1017.0 1015.8 1015.4 1016.9 1016.9 1013.7 1012.4 1014.7 1017.3 1021.1 1020.3 1019.9 1016.8 MAX. QNH PRESSURE IN HPA 1026.2 1026.7 1026.3 1027.3 1025.0 1020.8 1022.0 1020.8 1027.9 1028.4 1030.3 1030.1 1030.3 YEAR-DAY 95- 7 98-23 2-11 98-12 98- 8 98- 5 96- 3 1-14 94-23 5-11 96-18 98- 9 96-18 MIN. QNH PRESSURE IN HPA 1003.6 1004.6 1003.3 1005.1 1005.5 1005.4 1005.0 1008.4 1007.6 1013.8 1009.2 1006.7 1003.3 YEAR-DAY 3-28 3-19 97-29 2- 3 4-13 3-30 3-26 94- 1 0- 1 96- 5 1-18 94- 4 97-29 MEAN QFF PRESSURE IN HPA 1016.4 1013.5 1009.5 1006.7 1002.9 996.1 993.4 997.0 1002.3 1011.0 1015.1 1017.1 1006.7 MAX. QFF PRESSURE IN HPA 1027.1 1027.0 1025.3 1016.4 1013.2 1005.3 1004.7 1004.6 1013.8 1019.6 1030.3 1030.3 1030.3 YEAR-DAY 1-29 2- 5 3- 2 5- 8 3- 2 5- 4 0-30 93-30 4-27 4-27 3-25 4- 3 3-25 MIN. QFF PRESSURE IN HPA 1000.5 999.4 995.5 996.2 993.5 986.7 983.6 988.5 990.5 1001.2 1002.1 1004.3 983.6 YEAR-DAY 3-28 3-19 3-26 2- 3 1-25 0-25 3-26 3- 1 0- 2 0- 1 1-18 2-21 3-26 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1993-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 814.3 813.1 812.7 813.8 813.6 810.7 809.5 811.5 814.0 817.5 817.0 816.7 813.7 MAX. QFE PRESSURE IN HPA 821.8 822.1 822.1 821.7 820.3 816.6 817.0 816.3 822.8 823.2 825.2 825.1 825.2 YEAR-DAY 95- 7 98-23 2-11 98-12 95-26 3- 1 96- 3 96-30 94-23 5-12 96-18 98- 9 96-18 MIN. QFE PRESSURE IN HPA 802.5 804.0 803.1 804.8 804.6 804.3 803.4 805.6 806.0 811.3 807.5 805.4 802.5 YEAR-DAY 3-28 98-15 97-29 4-17 4-13 3-30 5- 5 94- 1 0- 1 96- 5 1-18 2-21 3-28 MEAN QNH PRESSURE IN HPA 1017.7 1016.3 1015.8 1017.1 1016.9 1013.5 1012.0 1014.3 1017.3 1021.5 1020.9 1020.6 1017.0 MAX. QNH PRESSURE IN HPA 1026.7 1027.1 1027.1 1026.6 1024.9 1020.5 1020.9 1020.1 1027.9 1028.4 1030.8 1030.6 1030.8 YEAR-DAY 95- 7 98-23 2-11 98-12 95-26 3- 1 96- 3 96-30 94-23 5-12 96-18 98- 9 96-18 MIN. QNH PRESSURE IN HPA 1003.6 1005.4 1004.3 1006.3 1006.1 1005.7 1004.6 1007.3 1007.8 1014.1 1009.6 1007.0 1003.6 YEAR-DAY 3-28 98-15 97-29 4-17 4-13 3-30 5- 5 94- 1 0- 1 96- 5 1-18 2-21 3-28 MEAN QFF PRESSURE IN HPA 1018.8 1015.3 1011.8 1008.6 1004.8 997.4 994.1 997.7 1004.2 1013.2 1017.4 1020.4 1008.6 MAX. QFF PRESSURE IN HPA 1034.5 1030.3 1029.3 1020.9 1015.6 1010.5 1005.6 1005.4 1022.0 1022.2 1032.6 1033.1 1034.5 YEAR-DAY 96-14 98-23 3- 2 94- 5 95-26 95- 1 0-30 96-31 94-23 95-26 3-25 95-14 96-14 MIN. QFF PRESSURE IN HPA 1001.4 1001.8 998.4 997.9 994.0 988.9 985.1 988.8 992.9 1001.4 1004.4 1001.4 985.1 YEAR-DAY 3-28 3-20 3-12 98-23 1-25 3-30 97-16 94- 1 0- 2 98- 1 1-18 2-21 97-16 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 814.9 814.0 813.9 815.2 814.3 811.5 811.0 812.9 815.3 818.8 817.7 817.1 814.7 MAX. QFE PRESSURE IN HPA 822.5 822.7 822.5 821.9 819.0 817.7 818.6 817.3 820.9 823.6 826.2 824.3 826.2 YEAR-DAY 3- 7 2- 6 2-11 3- 7 5-24 3- 1 0-30 93-28 1-23 93-17 3-25 4- 3 3-25 MIN. QFE PRESSURE IN HPA 803.7 805.8 803.7 805.7 807.9 805.4 805.2 807.5 807.4 813.6 807.1 806.3 803.7 YEAR-DAY 3-28 1-21 1-25 2- 3 5- 5 3-30 5- 5 0-31 0- 1 0- 1 1-18 2-21 1-25 MEAN QNH PRESSURE IN HPA 1018.5 1017.4 1017.3 1018.8 1017.8 1014.3 1013.7 1016.0 1019.0 1023.1 1021.8 1021.0 1018.2 MAX. QNH PRESSURE IN HPA 1027.5 1027.8 1027.5 1026.8 1023.3 1021.8 1022.9 1021.3 1025.6 1028.9 1032.0 1029.7 1032.0 YEAR-DAY 3- 7 2- 6 2-11 3- 7 5-24 3- 1 0-30 93-28 1-23 93-17 3-25 4- 3 3-25 MIN. QNH PRESSURE IN HPA 1005.0 1007.5 1005.0 1007.4 1010.0 1007.0 1006.8 1009.6 1009.4 1016.9 1009.1 1008.1 1005.0 YEAR-DAY 3-28 1-21 1-25 2- 3 5- 5 3-30 5- 5 0-31 0- 1 0- 1 1-18 2-21 1-25 MEAN QFF PRESSURE IN HPA 1019.0 1015.9 1011.5 1008.0 1003.7 996.6 994.0 997.6 1003.6 1012.6 1017.4 1019.9 1008.3 MAX. QFF PRESSURE IN HPA 1029.7 1030.8 1026.9 1018.5 1014.6 1006.7 1005.5 1004.3 1015.3 1021.0 1033.2 1032.6 1033.2 YEAR-DAY 2-27 2- 5 3- 2 5- 6 3- 2 3- 1 0-30 1-14 4-30 93-21 3-25 4- 3 3-25 MIN. QFF PRESSURE IN HPA 1003.4 1002.0 999.9 999.2 994.3 987.7 985.8 989.9 992.0 1002.1 1001.8 1002.8 985.8 YEAR-DAY 3-28 3-20 0-24 2-19 1-29 3-30 3-25 5- 8 0- 1 0- 1 1-18 2-21 3-25 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 814.8 814.0 814.0 815.2 814.5 811.9 811.5 813.3 815.7 818.9 817.6 816.9 814.9 MAX. QFE PRESSURE IN HPA 823.2 822.3 823.3 821.7 818.8 818.2 819.0 817.6 821.0 823.8 826.2 824.1 826.2 YEAR-DAY 3- 7 2- 6 2-10 3- 7 3- 1 3- 1 0-30 93-30 4-26 5-11 3-25 4- 3 3-25 MIN. QFE PRESSURE IN HPA 805.4 805.8 804.2 804.9 807.4 805.9 805.4 808.2 808.0 813.3 807.6 806.1 804.2 YEAR-DAY 3-28 1-21 1-25 2- 3 5- 5 3-30 3-25 0-30 0- 1 0- 1 1-18 2-21 1-25 MEAN QNH PRESSURE IN HPA 1018.3 1017.3 1017.4 1018.8 1018.0 1014.8 1014.3 1016.5 1019.3 1023.2 1021.7 1020.8 1018.4 MAX. QNH PRESSURE IN HPA 1028.4 1027.3 1028.5 1026.6 1023.1 1022.4 1023.3 1021.7 1025.7 1029.1 1032.0 1029.5 1032.0 YEAR-DAY 3- 7 2- 6 2-10 3- 7 3- 1 3- 1 0-30 93-30 4-26 5-11 3-25 4- 3 3-25 MIN. QNH PRESSURE IN HPA 1007.0 1007.5 1005.6 1006.4 1009.4 1007.6 1007.0 1010.4 1010.2 1016.5 1009.7 1007.9 1005.6 YEAR-DAY 3-28 1-21 1-25 2- 3 5- 5 3-30 3-25 0-30 0- 1 0- 1 1-18 2-21 1-25 MEAN QFF PRESSURE IN HPA 1017.7 1014.7 1010.9 1007.7 1003.9 997.0 994.4 997.9 1003.5 1012.1 1016.3 1018.3 1007.9 MAX. QFF PRESSURE IN HPA 1030.2 1029.3 1027.5 1018.8 1014.3 1006.6 1006.1 1004.7 1014.7 1020.9 1032.3 1032.4 1032.4 YEAR-DAY 1-28 2- 5 3- 2 5- 8 3- 1 3- 1 0-30 1-14 4-30 4-26 3-25 4- 3 4- 3 MIN. QFF PRESSURE IN HPA 1004.2 1003.3 1000.6 999.0 994.1 988.0 985.2 990.2 992.0 1002.7 1002.2 1002.8 985.2 YEAR-DAY 4-26 3-20 1-24 2- 3 1-29 3-30 3-25 5- 2 0- 1 0- 1 1-18 2-21 3-25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 1 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** 8.1 15.3 20.2 26.7 28.5 26.0 21.4 13.9 9.3 5.7 ****** 1994 5.0 5.5 10.3 16.4 20.8 27.1 30.7 29.7 20.8 15.5 11.7 4.2 16.5 1995 6.0 6.1 9.7 15.0 19.5 25.5 30.5 28.7 23.9 16.4 11.4 0.8 16.1 1996 -1.3 7.3 8.8 15.9 21.6 27.2 27.1 27.3 24.9 17.1 9.3 7.2 16.1 1997 4.5 5.4 8.0 14.2 20.4 26.2 31.5 29.1 24.1 18.7 9.3 4.6 16.3 1998 3.3 6.0 10.6 17.0 21.9 26.7 29.2 28.1 24.5 17.4 12.5 10.2 17.3 1999 3.8 7.8 9.1 16.5 23.0 28.2 29.0 27.7 24.7 18.4 11.6 6.3 17.2 2000 3.4 4.0 9.1 17.5 22.1 25.5 26.9 25.7 23.2 15.3 6.8 4.5 15.3 2001 1.6 4.5 10.5 17.1 21.2 25.7 28.4 26.3 22.2 17.3 8.9 6.6 15.8 2002 2.8 5.9 10.2 14.4 20.1 24.9 27.4 27.2 23.3 16.6 8.4 4.2 15.5 2003 2.9 6.5 9.3 15.7 19.1 25.6 30.0 26.8 22.5 17.0 8.2 4.9 15.7 2004 4.1 6.7 12.6 14.6 21.5 27.4 28.2 28.5 21.4 15.6 10.3 2.2 16.1 2005 1.9 3.5 10.6 15.6 18.7 25.4 28.7 26.7 23.1 16.1 8.2 5.7 15.3 MEAN 3.2 5.8 9.8 15.8 20.8 26.3 28.9 27.5 23.1 16.6 9.7 5.2 16.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 2 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF MINIMUM TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** 1.4 6.7 10.7 14.1 17.4 15.8 10.6 5.1 2.8 -2.1 ****** 1994 -3.2 -4.0 1.4 7.5 11.4 14.1 19.9 17.3 9.4 6.6 3.9 -3.7 6.7 1995 -3.4 -1.2 1.5 6.7 10.5 14.6 18.5 15.7 12.1 5.1 0.3 -4.8 6.3 1996 -7.7 1.1 2.7 7.8 11.9 16.0 17.3 16.1 12.3 5.6 0.9 -1.6 6.9 1997 -2.6 -3.3 0.7 6.3 11.3 15.9 20.5 16.3 12.0 8.6 2.0 -2.3 7.1 1998 -3.2 -0.4 3.1 7.9 11.8 15.2 18.9 17.1 12.2 5.7 0.5 -0.3 7.4 1999 -2.0 -0.2 1.9 7.5 11.3 15.2 18.3 16.2 11.8 6.1 2.4 -2.9 7.1 2000 -3.9 -3.2 1.3 9.0 11.1 14.4 17.2 14.9 12.9 5.9 1.4 -1.4 6.6 2001 -5.5 -3.1 2.2 8.4 12.2 15.6 19.3 15.9 12.1 8.0 0.6 1.7 7.3 2002 -2.7 -1.3 2.2 8.0 10.0 15.0 17.7 16.1 12.3 6.3 2.2 -1.1 7.1 2003 -3.3 0.8 2.7 8.0 10.4 15.0 20.0 16.6 11.5 7.5 0.1 -0.5 7.4 2004 -0.6 -0.3 3.5 7.5 11.1 16.5 17.7 16.9 11.5 5.8 3.3 -2.9 7.5 2005 -3.6 -2.5 3.1 7.5 10.4 15.1 19.2 16.9 11.9 6.6 0.7 -1.2 7.0 MEAN -3.5 -1.5 2.1 7.6 11.1 15.1 18.6 16.3 11.7 6.4 1.6 -1.8 7.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 3 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF MAXIMUM TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** 12.4 20.4 25.1 32.1 33.7 33.1 30.2 21.6 16.1 14.2 ****** 1994 10.2 11.2 15.7 21.7 25.9 33.0 36.3 36.0 26.6 20.9 16.6 9.3 22.0 1995 11.9 11.0 14.7 20.2 24.5 30.9 36.3 34.4 30.0 22.5 17.3 5.5 21.6 1996 3.9 11.9 13.3 20.8 26.8 32.5 31.8 32.9 31.4 23.0 14.7 13.1 21.3 1997 9.4 11.2 13.1 19.2 25.3 31.4 37.2 34.9 30.1 24.3 14.2 9.9 21.7 1998 8.1 10.8 15.7 22.3 27.1 32.0 35.1 33.8 30.7 23.8 19.3 17.1 23.0 1999 8.4 13.1 13.8 21.7 28.5 34.1 34.5 33.1 31.2 24.8 16.9 12.4 22.7 2000 9.2 11.2 16.2 24.8 30.5 33.7 34.0 33.7 31.5 23.6 12.8 11.3 22.7 2001 9.2 12.1 17.9 24.5 28.6 33.2 35.5 33.9 30.1 25.3 17.0 12.3 23.3 2002 8.6 12.8 17.5 20.4 27.8 32.1 34.6 35.3 31.9 25.5 14.5 9.9 22.6 2003 9.6 12.5 15.9 22.4 25.7 33.3 37.5 34.1 30.7 25.1 16.1 10.8 22.8 2004 9.7 13.3 18.0 19.1 26.6 32.7 33.1 35.3 29.3 23.8 17.2 7.9 22.2 2005 7.6 9.6 16.7 22.7 25.7 32.8 35.6 34.1 31.6 24.1 15.7 13.0 22.4 MEAN 8.8 11.7 15.5 21.6 26.8 32.6 35.0 34.2 30.4 23.7 16.0 11.3 22.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 4 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** 11.0 13.7 14.4 18.0 16.3 17.3 19.6 16.5 13.3 16.3 ****** 1994 13.4 15.2 14.3 14.2 14.5 18.9 16.4 18.7 17.2 14.3 12.7 13.0 15.3 1995 15.3 12.2 13.2 13.5 14.0 16.3 17.8 18.7 17.9 17.4 17.0 10.3 15.3 1996 11.6 10.8 10.6 13.0 14.9 16.5 14.5 16.8 19.1 17.4 13.8 14.7 14.4 1997 12.0 14.5 12.4 12.9 14.0 15.5 16.7 18.6 18.1 15.7 12.2 12.2 14.6 1998 11.3 11.2 12.6 14.4 15.3 16.8 16.2 16.7 18.5 18.1 18.8 17.4 15.6 1999 10.4 13.3 11.9 14.2 17.2 18.9 16.2 16.9 19.4 18.7 14.5 15.3 15.6 2000 13.1 14.4 14.9 15.8 19.4 19.3 16.8 18.8 18.6 17.7 11.4 12.7 16.1 2001 14.7 15.2 15.7 16.1 16.4 17.6 16.2 18.0 18.0 17.3 16.4 10.6 16.0 2002 11.3 14.1 15.3 12.4 17.8 17.1 16.9 19.2 19.6 19.2 12.3 11.0 15.5 2003 12.9 11.7 13.2 14.4 15.3 18.3 17.5 17.5 19.2 17.6 16.0 11.3 15.4 2004 10.3 13.6 14.5 11.6 15.5 16.2 15.4 18.4 17.8 18.0 13.9 10.8 14.7 2005 11.2 12.1 13.6 15.2 15.3 17.7 16.4 17.2 19.7 17.5 15.0 14.2 15.4 MEAN 12.3 13.2 13.4 14.0 15.7 17.5 16.4 17.9 18.7 17.3 14.4 13.1 15.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 5 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF MEAN DAILY TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** 6.9 13.6 17.9 23.1 25.6 24.4 20.4 13.4 9.4 6.0 ****** 1994 3.5 3.6 8.5 14.6 18.7 23.5 28.1 26.6 18.0 13.7 10.2 2.8 14.3 1995 4.2 4.9 8.1 13.5 17.5 22.7 27.4 25.1 21.1 13.8 8.8 0.4 14.0 1996 -1.9 6.5 8.0 14.3 19.3 24.2 24.6 24.5 21.9 14.3 7.8 5.7 14.1 1997 3.4 4.0 6.9 12.7 18.3 23.7 28.8 25.6 21.1 16.4 8.1 3.8 14.4 1998 2.4 5.2 9.4 15.1 19.5 23.6 27.0 25.4 21.4 14.8 9.9 8.4 15.2 1999 3.2 6.4 7.8 14.6 19.9 24.7 26.4 24.6 21.5 15.4 9.7 4.8 14.9 2000 2.6 4.0 8.8 16.9 20.8 24.1 25.6 24.3 22.2 14.8 7.1 5.0 14.7 2001 1.8 4.5 10.0 16.4 20.4 24.4 27.4 24.9 21.1 16.6 8.8 7.0 15.3 2002 3.0 5.7 9.9 14.2 18.9 23.6 26.1 25.7 22.1 15.9 8.3 4.4 14.8 2003 3.2 6.7 9.3 15.2 18.0 24.2 28.7 25.4 21.1 16.3 8.1 5.1 15.1 2004 4.5 6.5 10.7 13.3 18.9 24.6 25.4 26.1 20.4 14.8 10.2 2.5 14.8 2005 2.0 3.5 9.9 15.1 18.0 24.0 27.4 25.5 21.7 15.3 8.2 5.9 14.7 MEAN 2.7 5.1 8.8 14.6 18.9 23.9 26.8 25.2 21.1 15.0 8.8 4.8 14.6 SD 1.64 1.20 1.20 1.19 1.01 0.56 1.33 0.70 1.07 1.07 1.00 2.08 1.17 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 6 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M TEMPERATURE RECORDS LOWEST IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** -4.0 1.5 4.4 9.0 14.0 12.8 6.6 -0.2 -4.0 -8.2 ****** DAY ** ** 24 6 8 5 17 4 30 9 17 13 1994 -11.6 -9.6 -3.6 1.2 6.2 10.4 16.0 12.8 2.8 0.6 -2.6 -10.6 -11.6 DAY 11 21 6 6 7 6 1 23 23 13 12 8 1995 -8.6 -6.2 -5.2 1.6 5.4 8.6 14.2 12.4 7.8 0.0 -10.6 -13.8 -13.8 DAY 23 26 1 1 11 1 2 11 23 16 29 15 1996 -20.0 -4.2 -1.6 0.0 8.0 8.4 13.4 11.8 7.0 0.0 -3.8 -7.2 -20.0 DAY 15 14 29 6 3 7 21 5 21 21 19 4 1997 -8.6 -13.2 -6.6 -1.4 4.0 11.4 16.0 9.4 7.2 2.2 -2.8 -11.6 -13.2 DAY 20 8 1 12 6 5 1 30 10 28 21 22 1998 -10.6 -7.0 -5.6 3.0 5.0 12.6 16.0 13.6 8.4 1.4 -2.8 -6.6 -10.6 DAY 15 18 6 8 2 1 22 31 18 26 27 6 1999 -10.0 -8.0 -3.4 0.4 7.0 11.0 14.4 12.0 7.6 1.4 -6.6 -9.0 -10.0 DAY 5 7 8 11 6 16 30 28 27 22 30 6 2000 -11.8 -9.2 -6.8 1.8 6.0 11.4 11.0 11.6 8.6 1.4 -4.0 -7.4 -11.8 DAY 14 11 4 2 4 2 21 21 27 20 29 17 2001 -14.2 -8.0 -2.8 1.2 7.0 12.4 12.4 10.4 8.2 4.8 -8.6 -3.6 -14.2 DAY 29 1 2 14 5 19 31 1 28 12 25 23 2002 -8.8 -9.0 -5.6 2.0 5.0 10.0 14.0 12.2 7.8 1.0 -5.0 -9.0 -9.0 DAY 26 5 8 6 7 8 1 30 30 26 30 24 2003 -9.6 -7.4 -7.2 0.6 6.0 11.6 14.6 12.4 7.8 3.4 -8.6 -8.2 -9.6 DAY 18 1 2 2 10 8 2 11 28 16 24 13 2004 -6.8 -5.8 -3.0 0.8 7.2 10.0 13.2 14.2 3.8 0.2 -6.2 -10.2 -10.2 DAY 22 21 17 18 5 4 21 13 28 29 29 29 2005 -9.8 -10.6 -4.8 -2.4 4.4 11.0 13.4 12.5 7.6 -1.4 -4.4 -7.2 -10.6 DAY 26 15 27 7 8 4 28 19 29 25 26 31 1993-2005 -20.0 -13.2 -7.2 -2.4 4.0 8.4 11.0 9.4 2.8 -1.4 -10.6 -13.8 -20.0 YEAR-DAY 96-15 97- 8 3- 2 5- 7 97- 6 96- 7 0-21 97-30 94-23 5-25 95-29 95-15 96 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 7 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M TEMPERATURE RECORDS HIGHEST IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** 18.5 26.8 31.6 36.2 36.8 35.8 33.6 28.8 22.2 19.8 ****** DAY ** ** 31 19 27 18 15 15 3 1 3 19 1994 17.6 17.6 22.2 27.2 31.4 36.6 39.0 38.8 33.6 26.6 21.4 16.4 39.0 DAY 1 28 30 28 31 25 25 6 3 1 4 29 1995 15.0 16.2 20.4 24.0 28.2 35.4 39.2 36.2 32.2 28.2 22.4 12.2 39.2 DAY 16 22 25 30 4 13 12 23 5 3 4 1 1996 11.4 19.2 20.4 29.0 33.8 35.2 34.0 35.0 35.0 28.4 21.0 17.8 35.2 DAY 5 10 30 26 31 4 3 8 10 1 3 29 1997 14.2 20.4 18.8 26.4 30.8 35.2 39.6 38.0 34.4 29.4 20.2 15.4 39.6 DAY 11 21 3 27 31 15 18 15 1 3 2 8 1998 11.0 17.2 24.0 27.8 31.0 34.8 40.2 38.0 34.2 31.2 22.0 22.2 40.2 DAY 12 8 28 15 28 13 10 20 4 1 1 17 1999 14.4 19.6 21.2 25.6 33.6 37.6 39.0 34.2 34.8 27.8 21.6 19.0 39.0 DAY 9 8 31 27 31 30 5 15 1 6 8 8 2000 14.6 17.2 22.0 27.8 35.0 37.0 38.2 36.2 34.0 28.4 22.4 18.6 38.2 DAY 3 24 24 14 30 9 11 7 1 1 1 1 2001 16.6 19.0 24.2 27.8 33.6 37.6 40.2 36.2 33.4 29.6 23.2 17.6 40.2 DAY 15 28 31 27 15 30 11 25 1 1 7 31 2002 15.4 17.8 23.6 27.6 32.2 35.4 37.8 37.2 34.4 29.4 22.0 15.4 37.8 DAY 7 24 14 28 31 18 19 21 2 7 12 7 2003 18.4 16.4 22.4 27.4 29.6 37.6 39.0 37.6 33.2 28.6 22.6 17.8 39.0 DAY 13 24 25 9 22 24 18 1 8 2 1 19 2004 14.0 19.8 24.2 24.8 30.6 35.6 37.1 38.0 33.2 28.6 22.0 14.0 38.0 DAY 5 14 6 22 23 30 31 16 11 3 9 31 2005 16.0 17.0 21.2 28.8 28.6 38.2 38.2 38.6 34.8 28.2 21.6 20.2 38.6 DAY 1 21 30 24 29 25 6 8 5 4 7 5 1993-2005 18.4 20.4 24.2 29.0 35.0 38.2 40.2 38.8 35.0 31.2 23.2 22.2 40.2 YEAR-DAY 3-13 97-21 1-31 96-26 0-30 5-25 98-10 94- 6 96-10 98- 1 1- 7 98-17 98 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 8 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M 0C COOLING DEGREE DAYS (BASE 21) YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** 0.0 0.0 6.4 71.1 141.2 106.6 16.4 0.0 0.0 0.0 ****** 1994 0.0 0.0 0.0 0.0 7.9 78.1 220.6 175.1 12.0 0.0 0.0 0.0 493.8 1995 0.0 0.0 0.0 0.0 0.0 69.3 198.0 126.7 22.6 0.0 0.0 0.0 416.6 1996 0.0 0.0 0.0 0.0 13.8 93.4 110.1 107.6 39.1 0.0 0.0 0.0 364.1 1997 0.0 0.0 0.0 0.0 3.3 80.0 243.0 143.1 22.8 2.7 0.0 0.0 494.9 1998 0.0 0.0 0.0 0.0 10.7 77.8 185.1 137.9 25.7 0.3 0.0 0.0 437.5 1999 0.0 0.0 0.0 0.0 12.3 109.5 167.1 112.7 38.2 0.0 0.0 0.0 439.9 2000 0.0 0.0 0.0 0.0 23.1 94.4 141.8 102.3 45.5 0.0 0.0 0.0 407.1 2001 0.0 0.0 0.0 0.3 19.2 102.1 197.3 122.0 29.7 0.0 0.0 0.0 470.6 2002 0.0 0.0 0.0 0.0 5.7 78.5 159.4 146.1 44.7 0.0 0.0 0.0 434.4 2003 0.0 0.0 0.0 0.0 0.4 95.2 238.9 135.4 20.8 0.0 0.0 0.0 490.7 2004 0.0 0.0 0.0 0.0 2.6 108.6 136.4 158.1 30.7 0.0 0.0 0.0 436.4 2005 0.0 0.0 0.0 0.0 0.2 94.0 198.1 139.0 34.7 0.0 0.0 0.0 466.0 MEAN 0.0 0.0 0.0 0.0 8.1 88.6 179.8 131.8 29.5 0.2 0.0 0.0 438.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 9 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M 0C HEATING DEGREE DAYS (BASE 18) YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** 343.2 133.6 43.5 0.0 0.0 0.0 0.9 144.6 256.8 370.8 ****** 1994 449.9 401.9 293.6 108.7 17.1 0.0 0.0 0.0 38.6 133.1 232.6 470.3 2145.8 1995 427.4 365.6 305.9 136.1 29.4 2.8 0.0 0.0 1.2 135.4 275.4 546.8 2226.0 1996 616.7 333.9 309.5 109.5 14.2 0.0 0.0 0.0 0.0 115.3 305.8 380.0 2184.9 1997 452.0 392.7 343.7 159.8 29.7 0.0 0.0 0.0 0.5 68.4 297.6 440.7 2185.1 1998 483.0 359.2 267.1 89.8 21.5 0.0 0.0 0.0 0.0 108.8 243.1 297.1 1869.6 1999 460.0 323.5 314.8 102.9 3.2 0.0 0.0 0.0 4.3 79.5 249.1 410.1 1947.4 2000 477.2 404.9 286.0 49.6 2.7 0.0 0.0 0.0 0.0 101.6 327.1 403.3 2052.5 2001 500.8 377.5 246.8 56.0 4.7 0.0 0.0 0.0 1.3 46.0 275.6 341.1 1849.7 2002 466.3 343.5 252.1 119.8 19.5 0.0 0.0 0.0 0.6 68.9 289.7 421.5 1982.0 2003 460.0 316.5 269.7 89.0 28.0 0.0 0.0 0.0 1.4 64.5 298.2 399.3 1926.6 2004 417.7 334.5 225.0 144.6 16.1 0.0 0.0 0.0 13.6 101.5 232.8 480.3 1966.1 2005 494.8 405.1 251.2 93.6 24.5 0.0 0.0 0.0 0.0 85.6 293.6 374.0 2022.3 MEAN 475.5 363.3 285.3 107.1 19.5 0.2 0.0 0.0 4.8 96.4 275.2 410.4 2037.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 10 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** -3.4 -1.4 0.9 -0.6 0.4 1.4 -3.4 -1.3 -3.0 -5.0 ****** 1994 -4.6 -6.8 -4.0 1.2 1.8 -1.1 2.1 -1.4 -4.1 1.3 1.2 -9.0 -1.9 1995 -8.0 -7.1 -7.1 -2.5 3.3 3.5 2.9 0.8 0.3 -2.6 -6.8 -4.2 -2.3 1996 -5.8 -1.4 -0.0 1.6 6.7 6.3 7.5 6.6 3.8 0.7 -1.6 -2.8 1.8 1997 -5.0 -8.6 -3.7 -0.3 1.0 4.4 7.5 1.2 1.9 1.6 0.2 -3.2 -0.2 1998 -6.0 -4.5 -2.4 0.2 3.5 4.7 7.3 5.9 3.8 0.2 -5.3 -4.3 0.2 1999 -2.6 -2.3 -1.8 -0.4 1.4 4.7 6.6 4.4 1.1 -1.8 -2.1 -6.2 0.1 2000 -8.0 -6.9 -7.4 -2.1 -1.9 -0.2 3.2 0.7 0.6 -0.8 -0.2 -2.8 -2.2 2001 -6.7 -8.9 -3.6 -4.6 -2.6 2.6 3.5 2.4 0.3 0.2 -5.7 0.5 -1.9 2002 -5.7 -6.7 -5.8 -0.8 0.3 0.9 3.3 1.2 -1.5 -3.5 -0.8 -3.7 -1.9 2003 -6.8 -5.7 -5.0 0.3 -0.2 2.0 4.2 3.6 0.2 -3.5 -7.4 -3.3 -1.8 2004 -3.0 -5.9 -3.6 -0.1 -2.5 -1.6 1.1 -1.6 -3.3 -4.1 -2.4 -4.9 -2.7 2005 -5.5 -6.8 -5.8 -2.2 0.2 0.3 1.7 0.6 -4.4 -6.2 -3.8 -4.9 -3.1 MEAN -5.6 -6.0 -4.1 -0.8 0.9 2.0 4.0 2.0 -0.4 -1.5 -2.9 -4.1 -1.4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 11 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** 3.90 4.46 5.19 4.60 4.98 5.35 3.75 4.39 4.00 3.33 ***** 1994 3.45 2.94 3.68 5.36 5.54 4.55 5.74 4.40 3.74 5.45 5.39 2.57 4.40 1995 2.80 2.96 3.14 4.24 6.26 6.18 5.92 5.08 4.91 4.03 3.00 3.55 4.34 1996 3.23 4.40 4.89 5.54 7.82 7.57 8.16 7.65 6.35 5.19 4.31 3.92 5.75 1997 3.30 2.65 3.80 4.96 5.19 6.75 8.44 5.32 5.54 5.43 4.82 3.77 5.00 1998 3.14 3.54 4.19 4.98 6.16 6.81 8.09 7.29 6.34 5.00 3.24 3.58 5.20 1999 4.03 4.14 4.29 4.83 5.39 6.87 7.75 6.59 5.22 4.22 4.23 3.10 5.05 2000 2.77 2.93 2.94 4.22 4.24 4.83 6.17 5.05 5.05 4.61 4.75 3.96 4.29 2001 2.95 2.54 3.75 3.47 4.14 5.90 6.21 5.79 4.89 4.87 3.30 5.00 4.40 2002 3.22 2.98 3.28 4.67 5.02 5.16 6.14 5.35 4.28 3.69 4.58 3.75 4.34 2003 2.94 3.28 3.50 4.98 4.73 5.62 6.54 6.40 4.88 3.68 2.92 3.86 4.44 2004 3.90 3.17 3.72 4.99 4.14 4.35 5.31 4.29 3.80 3.58 4.14 3.37 4.06 2005 3.22 2.97 3.47 4.27 5.04 4.96 5.51 5.19 3.52 2.98 3.68 3.39 4.02 MEAN 3.25 3.21 3.73 4.69 5.30 5.70 6.53 5.67 4.79 4.39 4.03 3.63 4.58 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 12 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** 5.06 5.79 6.74 5.97 6.45 6.93 4.88 5.74 5.21 4.35 ***** 1994 4.49 3.82 4.78 6.96 7.20 5.89 7.39 5.69 4.87 7.11 7.01 3.36 5.71 1995 3.65 3.84 4.08 5.51 8.12 7.98 7.62 6.59 6.38 5.27 3.92 4.63 5.63 1996 4.21 5.70 6.32 7.19 10.12 9.75 10.52 9.88 8.22 6.76 5.63 5.13 7.45 1997 4.29 3.46 4.92 6.43 6.75 8.72 10.82 6.88 7.20 7.08 6.28 4.91 6.48 1998 4.08 4.60 5.44 6.46 8.00 8.81 10.41 9.43 8.21 6.52 4.24 4.68 6.74 1999 5.25 5.38 5.56 6.27 6.99 8.86 9.96 8.52 6.77 5.50 5.51 4.06 6.55 2000 3.60 3.82 3.82 5.49 5.50 6.25 7.97 6.55 6.55 6.02 6.19 5.15 5.58 2001 3.84 3.31 4.87 4.52 5.38 7.62 8.01 7.51 6.36 6.35 4.31 6.52 5.72 2002 4.19 3.88 4.27 6.06 6.52 6.68 7.94 6.92 5.57 4.82 5.98 4.88 5.64 2003 3.83 4.25 4.55 6.47 6.15 7.26 8.41 8.28 6.35 4.82 3.81 5.03 5.77 2004 5.07 4.12 4.85 6.47 5.38 5.63 6.87 5.57 4.95 4.69 5.40 4.39 5.28 2005 4.19 3.86 4.51 5.55 6.55 6.42 7.13 6.71 4.58 3.91 4.81 4.43 5.22 MEAN 4.22 4.17 4.85 6.09 6.88 7.37 8.42 7.34 6.22 5.74 5.25 4.73 5.94 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 13 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** 6.14 12.35 18.12 30.70 33.91 28.38 22.46 11.15 7.27 5.48 ***** 1994 4.89 5.71 8.42 12.70 18.49 31.80 38.56 38.22 21.19 11.29 7.34 5.52 17.01 1995 6.23 5.94 8.52 12.25 15.43 26.24 38.08 34.80 25.04 15.00 10.80 2.20 16.71 1996 1.89 4.96 5.43 11.67 16.89 27.74 26.57 28.11 25.36 14.10 6.85 5.64 14.60 1997 4.58 6.27 6.31 10.60 18.33 26.60 37.39 35.67 24.53 15.76 6.02 4.00 16.34 1998 4.01 5.27 8.08 13.99 19.46 27.61 31.99 30.49 24.34 15.01 11.40 8.62 16.69 1999 3.10 5.76 6.64 13.27 22.59 31.19 31.93 30.29 26.63 17.13 8.98 6.21 16.98 2000 4.70 4.84 8.36 15.53 22.77 28.37 29.20 28.15 23.41 12.36 4.22 3.73 15.47 2001 3.53 5.69 8.65 15.91 21.23 27.12 32.40 28.50 21.96 14.48 8.08 3.55 15.92 2002 3.65 6.05 8.94 11.21 18.50 26.24 30.22 31.14 25.05 15.59 5.68 3.77 15.50 2003 4.18 5.89 7.89 12.28 17.04 27.42 35.88 28.69 22.60 15.79 7.98 4.16 15.82 2004 3.46 6.32 10.89 10.84 21.49 32.42 32.94 35.55 22.39 14.37 7.90 3.14 16.81 2005 3.18 4.58 8.86 13.49 16.02 27.91 34.20 30.27 25.78 15.71 6.86 5.45 16.03 MEAN 3.95 5.61 7.93 12.78 18.95 28.57 33.33 31.40 23.90 14.44 7.64 4.73 16.10 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 14 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 50 36 31 18 18 22 21 38 46 50 *** 1994 54 46 42 40 31 18 18 15 21 43 53 43 35 1995 43 44 37 35 39 27 19 18 23 32 30 72 35 1996 73 58 57 41 41 28 30 28 27 35 50 52 43 1997 54 39 48 43 31 28 24 18 25 34 56 61 38 1998 54 51 46 35 33 26 28 26 29 36 31 40 36 1999 66 53 52 35 26 24 26 24 23 28 42 46 37 2000 48 50 34 29 22 20 23 21 24 37 66 62 36 2001 59 42 42 25 23 25 21 23 25 34 39 68 36 2002 58 44 36 40 30 22 23 20 20 27 56 60 36 2003 55 46 41 39 29 24 21 24 24 26 36 60 35 2004 63 45 39 43 24 17 20 16 21 28 45 63 35 2005 63 50 35 33 33 21 19 20 17 23 47 50 34 MEAN 58 47 43 36 30 23 22 21 23 32 46 56 36 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 15 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 74 59 53 33 33 35 37 54 68 73 *** 1994 78 70 68 67 50 32 31 27 34 70 74 69 56 1995 71 72 63 59 60 49 34 31 37 52 50 85 55 1996 87 80 77 61 62 42 42 41 41 53 66 75 61 1997 73 57 71 68 53 45 36 31 40 51 78 81 57 1998 75 74 70 59 50 42 44 42 47 60 52 61 56 1999 85 79 75 60 44 37 41 37 38 46 63 71 56 2000 69 77 55 46 36 31 33 32 37 55 84 85 53 2001 83 65 66 41 39 36 31 33 36 49 56 86 52 2002 81 67 60 62 47 35 35 32 32 40 79 81 54 2003 75 68 64 61 46 37 31 34 36 39 53 80 52 2004 84 69 65 67 44 31 35 28 34 44 66 83 54 2005 86 71 55 55 54 34 31 33 30 38 71 71 52 MEAN 79 71 66 59 49 37 35 34 37 50 66 77 55 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 16 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 33 24 20 12 11 13 11 25 26 29 *** 1994 36 29 27 25 22 11 11 9 14 26 38 24 23 1995 22 26 21 21 27 17 12 12 16 21 19 59 23 1996 58 41 44 30 30 21 24 22 20 26 39 37 33 1997 39 26 33 29 20 19 18 13 18 24 41 44 27 1998 38 35 30 24 24 19 19 19 19 24 20 26 25 1999 49 37 38 24 18 17 19 18 16 19 29 29 26 2000 32 27 19 18 12 13 16 14 16 23 47 39 23 2001 36 24 26 14 13 17 15 15 16 22 24 46 22 2002 35 25 20 23 18 14 14 13 13 16 36 39 22 2003 34 25 23 24 18 15 14 17 16 16 19 37 22 2004 42 25 24 29 13 10 13 9 12 16 27 40 22 2005 37 32 22 19 18 13 12 12 9 12 26 30 20 MEAN 38 29 28 23 19 15 15 14 15 21 30 37 24 RH=0 =====> RELATIVE HUMIDITY < 0.5% =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 17 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF RELATIVE HUMIDITY AT 03 UTC. IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 72 57 51 33 33 35 37 52 65 69 *** 1994 74 67 67 64 49 32 31 27 34 68 72 65 54 1995 67 71 62 57 59 48 34 31 37 52 48 82 54 1996 85 79 75 59 61 42 43 41 41 52 65 73 60 1997 72 55 69 66 52 45 36 31 40 51 77 78 56 1998 73 72 69 57 50 42 44 42 47 59 52 61 56 1999 83 76 73 59 44 37 40 37 38 46 63 70 56 2000 64 71 53 44 34 31 33 31 36 52 82 80 51 2001 79 61 63 40 35 35 30 33 36 48 52 80 49 2002 75 62 54 58 45 34 34 32 31 40 72 75 51 2003 68 61 57 57 44 37 31 34 36 39 51 75 49 2004 79 63 64 65 44 31 34 28 33 43 60 76 52 2005 77 68 51 52 52 33 31 32 29 38 67 68 50 MEAN 75 67 64 57 48 37 35 33 37 49 64 73 53 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 18 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF RELATIVE HUMIDITY AT 09 UTC. IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 42 28 24 14 14 15 13 27 32 33 *** 1994 42 37 33 30 24 14 14 11 16 32 43 30 27 1995 31 33 27 28 30 22 15 14 18 25 22 65 28 1996 65 49 49 34 35 24 26 24 23 29 43 43 37 1997 46 32 41 33 23 22 20 14 20 27 47 50 31 1998 46 43 38 27 27 21 23 21 23 28 23 30 29 1999 59 43 43 26 20 19 23 19 19 21 32 33 30 2000 41 35 23 20 15 15 18 16 18 26 50 44 27 2001 43 30 33 16 17 19 17 17 19 24 30 56 27 2002 42 33 26 30 22 16 18 15 15 19 44 46 27 2003 42 33 31 28 21 17 15 19 19 19 24 46 26 2004 49 30 28 34 17 13 15 11 14 19 31 48 26 2005 44 39 26 22 23 16 14 14 11 14 31 34 24 MEAN 46 36 34 27 23 18 18 16 18 24 35 43 28 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 19 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF RELATIVE HUMIDITY AT 15 UTC. IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 45 31 27 14 14 16 14 33 37 40 *** 1994 49 39 34 36 28 13 13 11 17 40 52 42 31 1995 36 36 29 28 36 20 14 14 19 26 25 74 30 1996 76 54 53 36 36 23 26 23 23 31 48 47 40 1997 49 33 41 38 25 23 20 14 21 30 52 59 34 1998 51 42 37 30 28 22 22 21 23 30 26 35 31 1999 63 47 48 29 22 22 21 20 19 24 38 40 33 2000 42 36 24 21 16 14 18 15 18 30 56 55 29 2001 48 33 31 17 17 18 16 17 21 27 33 62 28 2002 49 33 26 31 21 16 16 14 14 20 46 51 28 2003 48 36 32 29 21 16 15 18 18 20 27 52 28 2004 54 36 33 36 17 12 15 10 14 21 37 57 29 2005 54 38 27 24 23 14 13 14 11 16 36 40 26 MEAN 52 39 35 30 24 17 17 16 18 27 39 50 30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 20 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 1993 *** *** 0 0 4 23 31 30 15 0 0 0 *** 1994 0 0 0 0 3 27 31 31 4 0 0 0 96 1995 0 0 0 0 0 21 31 31 18 0 0 0 101 1996 0 0 0 0 6 27 29 29 21 0 0 0 112 1997 0 0 0 0 2 26 31 31 15 0 0 0 105 1998 0 0 0 0 2 26 29 31 18 2 0 0 108 1999 0 0 0 0 7 30 29 31 24 0 0 0 121 2000 0 0 0 0 20 25 31 31 23 0 0 0 130 2001 0 0 0 0 13 25 31 31 18 0 0 0 118 2002 0 0 0 0 14 25 31 31 24 0 0 0 125 2003 0 0 0 0 0 28 31 31 22 0 0 0 112 2004 0 0 0 0 5 28 28 31 15 0 0 0 107 2005 0 0 0 0 0 22 31 30 23 0 0 0 106 MEAN 0.0 0.0 0.0 0.0 5.8 25.6 30.3 30.7 18.5 0.2 0.0 0.0 111.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 21 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 1993 *** *** 0 0 0 0 0 0 0 0 0 0 *** 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 3 3 1996 8 0 0 0 0 0 0 0 0 0 0 0 8 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 1 0 0 0 0 0 0 0 0 0 0 0 1 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 2 0 0 0 0 0 0 0 0 0 0 0 2 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 0 0 0 0 0 0 0 0 0 0 0 0 0 2004 0 0 0 0 0 0 0 0 0 0 0 1 1 2005 0 2 0 0 0 0 0 0 0 0 0 0 2 MEAN 0.9 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 1.5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 22 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 1993 *** *** 0 0 0 0 4 0 0 0 0 0 *** 1994 0 0 0 0 0 0 10 5 0 0 0 0 15 1995 0 0 0 0 0 0 3 0 0 0 0 0 3 1996 0 0 0 0 0 2 1 1 0 0 0 0 4 1997 0 0 0 0 0 1 12 0 0 0 0 0 13 1998 0 0 0 0 0 0 5 4 0 0 0 0 9 1999 0 0 0 0 0 0 7 1 0 0 0 0 8 2000 0 0 0 0 0 0 7 2 0 0 0 0 9 2001 0 0 0 0 0 1 9 2 0 0 0 0 12 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 0 0 0 0 0 0 10 5 0 0 0 0 15 2004 0 0 0 0 0 4 3 2 0 0 0 0 9 2005 0 0 0 0 0 0 11 2 0 0 0 0 13 MEAN 0.0 0.0 0.0 0.0 0.0 0.6 6.3 1.8 0.0 0.0 0.0 0.0 8.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 23 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 1993 *** *** 1 0 0 0 0 0 0 0 2 9 *** 1994 15 18 0 0 0 0 0 0 0 0 0 18 51 1995 21 7 1 0 0 0 0 0 0 0 4 18 51 1996 22 1 0 0 0 0 0 0 0 0 0 8 31 1997 14 14 2 0 0 0 0 0 0 0 0 10 40 1998 14 6 2 0 0 0 0 0 0 0 0 6 28 1999 9 3 0 0 0 0 0 0 0 0 2 15 29 2000 17 12 6 0 0 0 0 0 0 0 1 10 46 2001 25 13 0 0 0 0 0 0 0 0 4 0 42 2002 12 11 3 0 0 0 0 0 0 0 4 9 39 2003 15 6 2 0 0 0 0 0 0 0 9 8 40 2004 6 5 0 0 0 0 0 0 0 0 2 13 26 2005 16 12 2 0 0 0 0 0 0 0 2 9 41 MEAN 15.5 9.0 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.3 10.2 38.5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 24 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 1993 *** *** 10 0 0 0 0 0 0 1 12 21 *** 1994 24 27 10 0 0 0 0 0 0 0 8 24 93 1995 26 16 10 0 0 0 0 0 0 1 14 26 93 1996 28 13 7 1 0 0 0 0 0 1 13 21 84 1997 23 23 13 2 0 0 0 0 0 0 10 24 95 1998 22 18 9 0 0 0 0 0 0 0 18 19 86 1999 23 17 13 0 0 0 0 0 0 0 9 23 85 2000 25 24 10 0 0 0 0 0 0 0 13 18 90 2001 28 23 9 0 0 0 0 0 0 0 11 11 82 2002 23 17 10 0 0 0 0 0 0 0 10 17 77 2003 24 12 10 0 0 0 0 0 0 0 13 19 78 2004 17 16 7 0 0 0 0 0 0 0 6 23 69 2005 25 21 8 3 0 0 0 0 0 1 14 20 92 MEAN 24.0 18.9 9.7 0.5 0.0 0.0 0.0 0.0 0.0 0.3 11.6 20.5 85.5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 25 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MONTHLY TOTAL OF PRECIPITATION IN MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** 58.0 3.6 13.2 0.0 0.8 0.7 0.0 0.1 21.3 0.5 ****** 1994 8.7 9.2 22.4 12.2 7.0 0.0 0.0 0.0 0.0 21.3 70.7 11.9 163.4 1995 2.4 40.9 17.8 20.4 30.0 23.6 0.0 0.0 0.0 7.0 0.0 39.0 181.1 1996 32.9 13.8 38.2 10.8 14.8 0.0 0.0 0.0 0.0 0.2 4.3 13.7 128.7 1997 20.8 0.0 21.8 34.9 11.1 6.4 0.0 0.0 0.0 1.1 10.4 24.5 131.0 1998 23.2 46.2 81.0 0.7 0.6 0.0 3.0 1.2 0.2 10.2 0.0 5.0 171.3 1999 22.0 35.4 51.2 9.3 0.0 0.0 1.7 0.0 0.0 0.0 3.1 14.7 137.4 2000 48.5 3.7 4.2 0.2 0.5 0.0 0.0 0.0 0.0 0.1 24.2 16.8 98.2 2001 3.3 6.1 38.2 0.0 5.8 1.0 0.0 0.0 0.0 0.0 3.6 72.3 130.3 2002 52.9 7.9 24.2 23.4 0.7 0.0 0.0 0.0 0.0 0.0 17.0 20.0 146.1 2003 15.6 17.3 14.9 25.6 0.7 0.0 1.0 0.0 0.0 0.0 0.0 38.8 113.9 2004 85.0 26.6 15.9 54.4 0.2 0.0 0.3 0.0 0.0 0.0 16.3 37.8 236.5 2005 24.2 0.3 1.7 11.0 7.2 0.0 0.0 4.0 0.0 0.0 12.4 27.8 88.6 MEAN 28.3 17.3 30.0 15.9 7.1 2.4 0.5 0.5 0.0 3.1 14.1 24.8 144.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 26 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M GREATEST DAILY OF PRECIPITATION IN MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** 25.0 2.0 11.0 0.0 0.8 0.7 0.0 0.1 11.0 0.5 ****** DAY ** ** 9 27 6 ** 31 25 ** 26 12 25 1994 4.0 7.0 16.9 7.0 4.0 0.0 0.0 0.0 0.0 6.0 40.0 7.0 40.0 DAY 24 1 12 2 6 ** ** ** ** 22 17 1 1995 2.0 28.0 15.0 8.0 11.0 22.0 0.0 0.0 0.0 5.0 0.0 15.0 28.0 DAY 13 6 14 13 29 1 ** ** ** 22 ** 12 1996 8.0 5.0 15.0 6.0 5.0 0.0 0.0 0.0 0.0 0.2 4.0 12.0 15.0 DAY 6 21 7 15 12 ** ** ** ** 10 28 23 1997 18.0 0.0 9.0 17.0 9.0 4.0 0.0 0.0 0.0 0.6 4.0 10.0 18.0 DAY 17 ** 29 7 20 24 ** ** ** 24 28 21 1998 11.0 20.0 33.0 0.4 0.3 0.0 3.0 1.0 0.2 8.0 0.0 4.0 33.0 DAY 6 12 18 21 14 ** 16 4 14 11 ** 3 1999 6.0 24.0 18.0 7.0 0.0 0.0 1.0 0.0 0.0 0.0 1.0 13.0 24.0 DAY 25 6 13 26 ** ** 14 ** ** ** 9 12 2000 27.0 2.1 2.0 0.2 0.5 0.0 0.0 0.0 0.0 0.0 6.0 5.0 27.0 DAY 28 25 25 17 1 ** ** ** ** ** 17 24 2001 3.2 2.9 21.0 0.0 5.3 1.0 0.0 0.0 0.0 0.0 3.0 16.0 21.0 DAY 27 21 10 ** 3 14 ** ** ** ** 13 12 2002 28.0 6.6 13.0 10.0 0.4 0.0 0.0 0.0 0.0 0.0 9.0 6.0 28.0 DAY 11 14 28 2 12 ** ** ** ** ** 6 10 2003 9.0 8.0 8.0 22.3 0.7 0.0 1.0 0.0 0.0 0.0 0.0 24.0 24.0 DAY 23 14 26 21 8 ** 30 ** ** ** ** 6 2004 30.0 18.0 9.0 15.0 0.2 0.0 0.3 0.0 0.0 0.0 13.0 21.0 30.0 DAY 7 6 19 5 5 ** 12 ** ** ** 19 15 2005 8.0 0.3 1.0 7.0 5.0 0.0 0.0 4.0 0.0 0.0 6.1 15.0 15.0 DAY 6 26 12 30 25 ** ** 10 ** ** 8 25 1993-2005 30.0 28.0 33.0 22.3 11.0 22.0 3.0 4.0 0.2 8.0 40.0 24.0 40.0 YEAR-DAY 4- 7 95- 6 98-18 3-21 93- 6 95- 1 98-16 5-10 98-14 98-11 94-17 3- 6 94 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 27 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 1993 *** *** 2 0 1 0 0 0 0 0 1 0 *** 1994 0 0 1 0 0 0 0 0 0 0 2 0 3 1995 0 1 1 0 1 1 0 0 0 0 0 2 6 1996 0 0 2 0 0 0 0 0 0 0 0 1 3 1997 1 0 0 1 0 0 0 0 0 0 0 1 3 1998 1 2 3 0 0 0 0 0 0 0 0 0 6 1999 0 1 1 0 0 0 0 0 0 0 0 1 3 2000 2 0 0 0 0 0 0 0 0 0 0 0 2 2001 0 0 2 0 0 0 0 0 0 0 0 3 5 2002 2 0 2 1 0 0 0 0 0 0 0 0 5 2003 0 0 0 1 0 0 0 0 0 0 0 2 3 2004 3 1 0 2 0 0 0 0 0 0 1 2 9 2005 0 0 0 0 0 0 0 0 0 0 0 1 1 MEAN 0.8 0.4 1.1 0.4 0.2 0.1 0.0 0.0 0.0 0.0 0.3 1.0 4.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 28 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 1993 *** *** 4 0 1 0 0 0 0 0 2 0 *** 1994 0 1 1 1 0 0 0 0 0 1 3 1 8 1995 0 2 1 1 3 1 0 0 0 1 0 3 12 1996 4 1 2 1 2 0 0 0 0 0 0 1 11 1997 1 0 2 3 1 0 0 0 0 0 0 1 8 1998 2 4 4 0 0 0 0 0 0 1 0 0 11 1999 2 2 5 1 0 0 0 0 0 0 0 1 11 2000 2 0 0 0 0 0 0 0 0 0 2 1 5 2001 0 0 2 0 1 0 0 0 0 0 0 6 9 2002 3 1 2 2 0 0 0 0 0 0 2 2 12 2003 1 2 1 1 0 0 0 0 0 0 0 2 7 2004 4 2 1 5 0 0 0 0 0 0 1 2 15 2005 2 0 0 1 1 0 0 0 0 0 1 3 8 MEAN 1.7 1.2 1.9 1.2 0.7 0.1 0.0 0.0 0.0 0.2 0.8 1.8 9.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 29 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 1993 *** *** 6 1 2 0 0 0 0 0 4 0 *** 1994 4 2 4 4 2 0 0 0 0 7 4 3 30 1995 1 3 2 4 7 1 0 0 0 2 0 3 23 1996 7 5 5 3 4 0 0 0 0 0 1 2 27 1997 2 0 5 5 3 3 0 0 0 0 3 5 26 1998 4 4 4 0 0 0 1 1 0 2 0 1 17 1999 7 5 5 2 0 0 1 0 0 0 3 2 25 2000 2 2 2 0 0 0 0 0 0 0 6 4 16 2001 1 2 4 0 1 1 0 0 0 0 1 10 20 2002 3 2 3 4 0 0 0 0 0 0 3 5 20 2003 4 2 3 3 0 0 1 0 0 0 0 4 17 2004 6 4 3 9 0 0 0 0 0 0 2 6 30 2005 5 0 1 3 2 0 0 1 0 0 3 3 18 MEAN 3.8 2.6 3.6 2.9 1.6 0.4 0.2 0.2 0.0 0.8 2.3 3.7 22.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 30 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 14 4 7 1 1 1 0 2 5 1 *** 1994 5 5 7 8 6 0 0 0 0 13 7 7 58 1995 3 5 6 7 8 4 0 0 0 2 0 6 41 1996 9 8 10 4 7 0 0 0 0 1 2 3 44 1997 5 0 9 9 3 5 0 0 0 2 7 5 45 1998 6 7 8 4 2 0 2 3 2 3 0 3 40 1999 10 7 8 8 0 0 2 0 0 0 5 2 42 2000 7 4 3 1 1 1 3 0 0 5 9 12 46 2001 2 5 6 0 3 1 0 0 0 0 3 13 33 2002 6 3 4 7 2 0 1 0 0 1 5 9 38 2003 6 8 8 5 4 0 1 0 0 0 1 9 42 2004 10 5 5 10 1 0 2 0 0 0 6 10 49 2005 8 1 5 3 7 0 0 1 0 0 4 5 34 MEAN 6.4 4.8 7.2 5.4 3.9 0.9 0.9 0.4 0.2 2.2 4.2 6.5 43.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 31 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M NO. OF DAYS WITH THUNDER STORM YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 0 0 0 0 1 0 0 0 1 0 *** 1994 0 0 0 0 0 0 0 0 0 4 1 0 5 1995 0 0 0 2 6 0 0 0 0 1 0 0 9 1996 0 0 0 1 1 0 0 0 0 0 0 0 2 1997 0 0 0 0 1 2 0 0 0 0 0 0 3 1998 0 0 0 0 1 1 2 0 0 2 0 0 6 1999 0 0 0 2 0 0 0 0 0 1 0 0 3 2000 0 0 1 0 0 0 0 0 0 0 0 0 1 2001 0 0 0 0 1 0 0 0 0 0 0 0 1 2002 0 0 0 1 0 0 0 0 0 0 0 0 1 2003 0 0 0 2 1 0 1 0 0 0 0 0 4 2004 0 0 0 2 2 0 1 0 0 0 2 0 7 2005 0 0 0 1 4 0 0 0 0 0 0 0 5 MEAN 0.0 0.0 0.1 0.8 1.3 0.2 0.4 0.0 0.0 0.6 0.3 0.0 3.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 32 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M NO. OF DAYS WITH SNOW OR SLEET YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 1 0 0 0 0 0 0 0 0 0 *** 1994 1 2 2 0 0 0 0 0 0 0 0 0 5 1995 1 0 0 0 0 0 0 0 0 0 0 2 3 1996 7 1 0 0 0 0 0 0 0 0 0 1 9 1997 3 0 2 0 0 0 0 0 0 0 0 2 7 1998 0 1 0 0 0 0 0 0 0 0 0 0 1 1999 2 1 1 0 0 0 0 0 0 0 0 0 4 2000 4 1 0 0 0 0 0 0 0 0 2 2 9 2001 2 1 0 0 0 0 0 0 0 0 0 0 3 2002 2 1 0 0 0 0 0 0 0 0 0 1 4 2003 5 3 1 0 0 0 0 0 0 0 0 2 11 2004 2 2 1 0 0 0 0 0 0 0 0 5 10 2005 5 0 0 0 0 0 0 0 0 0 0 0 5 MEAN 2.8 1.1 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 1.2 5.9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 33 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M NO. OF DAYS WITH DUST YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 1 3 1 1 1 1 0 0 0 0 *** 1994 0 2 2 1 4 1 2 0 1 0 0 1 14 1995 0 0 0 3 2 0 0 0 1 0 0 0 6 1996 0 0 1 0 1 0 0 0 5 0 0 0 7 1997 0 0 0 1 0 1 0 0 1 0 0 0 3 1998 0 0 1 0 1 0 1 0 0 0 0 0 3 1999 0 0 1 0 0 0 0 0 0 0 0 0 1 2000 1 0 3 1 1 1 0 0 0 0 0 0 7 2001 0 0 0 0 3 3 2 1 0 2 0 0 11 2002 0 0 5 5 4 0 0 0 0 1 1 3 19 2003 2 5 12 9 12 7 4 0 2 1 0 0 54 2004 0 4 1 1 2 2 1 0 0 2 4 0 17 2005 0 0 0 0 7 0 3 1 0 0 2 0 13 MEAN 0.3 0.9 2.1 1.8 2.9 1.2 1.1 0.2 0.8 0.5 0.5 0.3 12.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 34 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M PREVAILING WIND DIRECTION , SPEED (IN KNOTS) AND PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 270 270 270 45 45 45 45 45 225 225 *** PREVAIL. DIRECT. ***** ***** 9.9 11.3 12.6 9.6 10.1 9.7 8.5 7.8 13.3 10.7 ***** PREVAIL. SPEED ***** ***** 15.5 26.0 18.1 18.0 30.3 23.3 17.1 13.3 21.3 10.1 ***** PREVAIL. PERCENT ***** ***** 37.4 31.3 30.3 37.3 36.8 42.6 57.5 60.5 52.1 73.8 ***** CALMS PERCENT **** **** 155 150 155 150 155 223 240 248 240 248 1964 WIND OBSER. NO. 1994 225 270 225 225 225 270 45 45 45 45 180 225 45 PREVAIL. DIRECT. 11.4 11.9 13.9 9.1 12.0 9.6 7.1 6.8 6.8 7.1 15.0 13.2 6.5 PREVAIL. SPEED 10.3 13.6 14.8 15.3 15.5 18.7 30.3 28.4 26.7 14.2 17.3 18.7 12.1 PREVAIL. PERCENT 61.3 53.6 46.5 49.3 43.2 44.0 46.5 49.0 57.3 61.9 52.7 54.2 51.6 CALMS PERCENT 155 140 155 150 155 150 155 155 150 155 150 155 1825 WIND OBSER. NO. 1995 225 225 270 225 225 225 45 45 270 45 225 45 225 PREVAIL. DIRECT. 13.4 13.8 12.8 13.6 13.9 12.3 8.1 7.2 13.3 8.9 15.0 6.6 13.5 PREVAIL. SPEED 10.3 8.6 14.2 16.7 12.9 12.0 11.6 23.9 13.3 13.5 12.7 4.5 9.2 PREVAIL. PERCENT 69.0 57.9 54.2 45.3 49.7 56.0 54.2 54.2 50.7 58.7 61.3 89.7 58.5 CALMS PERCENT 155 140 155 150 155 150 155 155 150 155 150 155 1825 WIND OBSER. NO. 1996 225 270 225 225 270 45 45 45 45 45 45 45 45 PREVAIL. DIRECT. 13.9 14.0 14.5 18.8 14.2 9.8 12.1 10.4 10.2 8.6 9.4 7.3 10.2 PREVAIL. SPEED 5.2 15.2 18.1 20.1 14.8 16.7 36.1 25.2 11.3 15.5 15.3 11.0 13.2 PREVAIL. PERCENT 80.6 51.0 37.4 42.3 54.2 48.7 42.6 47.1 58.0 51.0 70.0 67.1 54.2 CALMS PERCENT 155 145 155 149 155 150 155 155 150 155 150 155 1829 WIND OBSER. NO. 1997 270 225 225 225 270 270 45 45 45 270 45 225 225 PREVAIL. DIRECT. 13.0 18.3 18.5 19.4 16.8 16.0 10.1 10.8 10.7 15.6 7.6 12.8 16.7 PREVAIL. SPEED 15.5 26.4 25.8 18.7 13.5 13.3 15.5 29.0 16.7 12.3 12.7 11.0 11.5 PREVAIL. PERCENT 63.2 45.7 35.5 39.3 50.3 48.0 55.5 54.2 48.7 56.1 66.7 74.8 53.3 CALMS PERCENT 155 140 155 150 155 150 155 155 150 155 150 155 1825 WIND OBSER. NO. 1998 270 225 225 225 225 45 45 45 45 45 45 225 225 PREVAIL. DIRECT. 11.9 17.0 17.5 16.7 17.2 9.9 11.1 9.8 8.9 8.9 10.0 14.8 16.0 PREVAIL. SPEED 15.5 29.3 27.7 22.7 17.4 20.0 20.0 20.6 12.7 12.3 7.3 14.8 12.1 PREVAIL. PERCENT 59.4 40.7 45.2 44.0 43.2 55.3 51.6 49.0 57.3 61.9 78.7 71.0 54.8 CALMS PERCENT 155 140 155 150 155 150 155 155 150 155 150 155 1825 WIND OBSER. NO. 1999 45 225 225 225 270 270 45 45 45 270 225 45 45 PREVAIL. DIRECT. 7.3 13.5 14.8 16.7 16.8 16.7 11.5 9.4 8.0 11.6 15.4 7.3 8.9 PREVAIL. SPEED 5.8 25.7 18.1 25.3 13.5 14.0 27.1 24.5 12.7 12.3 16.7 17.4 12.0 PREVAIL. PERCENT 70.3 47.1 50.3 35.3 42.6 48.0 43.9 54.8 55.3 60.0 50.0 66.5 52.1 CALMS PERCENT 155 140 155 150 155 150 155 155 150 155 150 155 1825 WIND OBSER. NO. 2000 270 225 270 225 270 45 45 45 45 225 45 225 225 PREVAIL. DIRECT. 12.1 12.5 12.1 12.4 14.0 10.4 10.7 9.9 9.2 10.8 7.8 11.5 11.9 PREVAIL. SPEED 11.0 13.0 14.5 16.7 19.0 14.6 25.8 21.4 8.8 8.5 10.0 12.5 8.7 PREVAIL. PERCENT 63.0 62.2 46.4 52.1 52.4 56.7 53.2 56.0 61.7 62.1 72.9 58.5 57.9 CALMS PERCENT 181 230 248 240 248 240 248 248 240 248 240 248 2859 WIND OBSER. NO. 2001 45 225 225 270 270 45 45 45 45 270 225 180 45 PREVAIL. DIRECT. 8.1 14.3 10.4 13.4 15.3 10.9 11.6 9.4 9.2 13.0 16.3 11.8 9.6 PREVAIL. SPEED 8.5 12.5 10.5 20.8 19.8 21.7 24.2 23.0 17.1 16.1 12.1 10.5 11.1 PREVAIL. PERCENT 64.5 46.9 56.9 39.2 33.1 35.8 37.9 46.8 48.3 46.0 59.2 58.9 47.8 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 2002 225 270 225 270 225 270 45 45 45 45 225 225 225 PREVAIL. DIRECT. 14.9 11.8 14.3 15.7 15.0 14.5 11.9 9.0 5.9 5.7 10.3 12.5 13.8 PREVAIL. SPEED 11.7 14.7 17.7 20.0 19.4 15.4 19.0 14.1 14.2 8.5 8.3 14.9 10.8 PREVAIL. PERCENT 58.5 54.5 45.6 39.2 40.7 46.3 48.8 57.3 71.7 70.6 70.8 57.3 55.1 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 2003 225 225 225 225 270 270 45 45 270 270 225 225 270 PREVAIL. DIRECT. 11.8 15.0 17.4 14.8 14.9 15.4 10.5 11.9 13.3 12.9 12.8 14.9 13.2 PREVAIL. SPEED 5.6 21.4 21.8 13.8 11.7 12.9 9.7 21.0 12.1 10.1 8.3 8.5 9.6 PREVAIL. PERCENT 73.4 47.3 42.3 52.5 56.9 61.3 58.5 60.5 59.6 60.5 60.8 67.3 58.5 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 2004 270 225 225 225 225 45 360 45 45 45 225 270 225 PREVAIL. DIRECT. 12.5 16.4 14.7 17.4 13.9 9.4 8.1 9.5 8.3 7.2 14.0 11.3 13.9 PREVAIL. SPEED 11.7 18.7 14.8 14.7 20.0 10.7 11.6 21.0 20.0 10.9 11.7 6.5 9.2 PREVAIL. PERCENT 59.7 47.3 52.3 46.0 41.9 53.3 54.8 53.6 67.9 71.0 59.6 71.8 58.2 CALMS PERCENT 248 203 155 150 155 150 155 181 240 248 240 248 2373 WIND OBSER. NO. 2005 225 225 225 225 270 45 45 45 45 45 225 45 270 PREVAIL. DIRECT. 11.3 12.1 13.3 16.6 12.4 11.0 10.5 10.1 8.5 8.3 10.2 5.9 11.6 PREVAIL. SPEED 12.1 15.6 23.0 13.8 14.9 14.6 16.9 19.8 10.8 9.7 12.1 6.0 9.9 PREVAIL. PERCENT 63.7 58.5 41.1 50.8 46.0 52.1 45.6 51.6 64.6 56.9 57.5 72.2 55.0 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 1993-2005 225 225 225 225 270 45 45 45 45 45 225 225 225 PREVAIL. DIRECT. 13.3 14.8 14.8 15.0 14.8 10.2 10.6 9.6 8.5 7.9 13.1 12.6 13.7 PREVAIL. SPEED 8.6 17.2 17.3 16.9 15.2 13.3 20.9 22.2 14.4 9.9 10.3 9.6 9.9 PREVAIL. PERCENT MEAN 65.2 51.5 45.6 44.2 45.1 49.6 48.5 52.3 59.1 60.1 62.3 67.4 54.2 CALMS PERCENT MEAN 195.9 181.2 190.8 184.5 190.8 184.6 190.8 198.0 198.5 205.1 198.5 205.1 2323.8 WIND OBSER. NO. =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 35 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M VECTOR WIND DIRECTION , MAGNITUDE (IN KNOTS) AND WIND STEADINESES (%) YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 229 252 254 317 39 22 37 336 233 249 *** VECTOR DIRECT. **** **** 2.6 4.6 3.6 1.1 3.9 3.0 1.8 0.7 3.3 1.0 **** WIND MAGNITUDE ***** ***** 44.1 68.7 50.0 16.9 61.9 53.6 51.4 21.9 63.5 43.5 ***** STEADINESES(%) 1994 237 233 236 243 244 262 44 42 49 343 203 233 242 VECTOR DIRECT. 2.3 3.4 2.8 1.7 3.2 2.2 2.7 2.8 2.3 0.8 4.1 3.1 1.2 WIND MAGNITUDE 62.2 66.7 58.3 41.5 62.7 46.8 75.0 80.0 85.2 25.0 75.9 64.6 28.6 STEADINESES(%) 1995 237 235 258 244 245 260 270 45 284 287 249 356 256 VECTOR DIRECT. 2.7 1.6 2.5 3.7 2.9 1.4 0.1 2.7 1.9 0.3 3.0 0.4 1.4 WIND MAGNITUDE 73.0 41.0 51.0 60.7 50.9 33.3 2.1 73.0 38.8 7.3 65.2 50.0 32.6 STEADINESES(%) 1996 243 235 220 238 274 285 41 30 295 260 20 266 270 VECTOR DIRECT. 0.5 4.2 4.1 4.9 3.5 1.3 4.9 3.3 0.5 2.0 1.5 0.9 1.1 WIND MAGNITUDE 23.8 63.6 47.7 54.4 61.4 20.6 71.0 61.1 10.2 32.8 53.6 30.0 19.6 STEADINESES(%) 1997 242 233 230 251 256 299 19 38 303 271 344 234 257 VECTOR DIRECT. 3.7 6.0 7.1 4.6 3.1 2.1 0.7 4.2 2.2 3.3 0.7 2.1 2.3 WIND MAGNITUDE 77.1 74.1 68.9 50.0 47.7 30.9 14.3 85.7 34.4 57.9 21.9 75.0 37.7 STEADINESES(%) 1998 235 237 227 229 247 29 58 30 314 316 345 235 247 VECTOR DIRECT. 3.5 7.2 6.2 5.7 4.3 2.6 1.6 3.3 1.1 0.9 0.7 2.8 1.9 WIND MAGNITUDE 71.4 85.7 73.8 68.7 55.1 54.2 25.4 68.7 25.6 22.0 35.0 73.7 33.3 STEADINESES(%) 1999 274 228 233 239 272 261 35 37 340 300 243 340 262 VECTOR DIRECT. 0.8 4.4 3.3 6.8 2.9 3.0 2.4 3.3 1.3 1.5 3.2 0.7 1.7 WIND MAGNITUDE 23.5 69.8 54.1 68.7 40.8 46.9 38.1 78.6 30.2 39.5 55.2 22.6 30.4 STEADINESES(%) 2000 224 225 226 257 252 11 52 52 312 270 1 191 245 VECTOR DIRECT. 2.5 2.7 3.8 4.1 4.2 1.0 3.5 3.1 0.3 1.1 0.3 2.0 1.0 WIND MAGNITUDE 56.8 71.1 54.3 71.9 75.0 21.3 74.5 75.6 8.3 30.6 13.6 50.0 22.7 STEADINESES(%) 2001 337 238 245 247 245 32 41 25 328 250 228 181 254 VECTOR DIRECT. 0.5 1.7 1.9 4.5 4.8 1.5 2.1 1.7 1.6 2.6 2.4 2.4 1.2 WIND MAGNITUDE 16.7 30.4 46.3 64.3 56.5 23.4 32.8 34.7 30.2 46.4 51.1 55.8 21.8 STEADINESES(%) 2002 224 253 222 236 249 265 22 10 35 265 293 225 244 VECTOR DIRECT. 2.6 3.2 3.2 6.0 5.6 1.6 1.5 0.6 0.8 0.2 0.5 3.3 1.9 WIND MAGNITUDE 57.8 59.3 46.4 69.0 70.0 24.2 25.9 15.0 42.1 9.5 20.0 66.0 37.3 STEADINESES(%) 2003 223 227 219 218 281 257 106 45 301 239 237 228 235 VECTOR DIRECT. 1.3 5.2 6.5 4.2 2.3 2.6 0.3 3.2 1.4 1.7 1.3 2.0 1.9 WIND MAGNITUDE 43.3 77.6 73.0 66.7 46.0 54.2 6.7 76.2 31.8 44.7 31.7 51.3 38.0 STEADINESES(%) 2004 226 226 241 239 228 342 10 34 45 301 231 240 240 VECTOR DIRECT. 2.6 5.5 2.5 4.0 4.5 0.6 1.2 1.7 1.5 0.7 2.7 1.1 1.6 WIND MAGNITUDE 57.8 76.4 47.2 55.6 60.8 12.8 26.7 37.8 60.0 28.0 61.4 42.3 33.3 STEADINESES(%) 2005 230 241 243 234 276 309 52 47 309 269 212 197 250 VECTOR DIRECT. 2.2 3.3 5.1 3.7 2.7 1.1 1.5 1.9 0.7 1.1 1.2 0.9 1.4 WIND MAGNITUDE 64.7 75.0 72.9 58.7 42.9 21.6 28.3 42.2 21.2 27.5 32.4 34.6 30.4 STEADINESES(%) 1993-2005 235 234 231 240 253 295 41 37 341 275 237 226 251 VECTOR DIRECT. 2.0 4.0 3.9 4.4 3.5 1.1 2.0 2.6 0.9 1.1 1.4 1.5 1.5 WIND MAGNITUDE 52.6 67.8 57.4 60.3 53.0 20.0 37.0 57.8 22.5 27.5 35.9 45.5 29.4 STEADINESES(%) =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 36 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF WIND SPEED IN KNOTS YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** 5.9 6.7 7.2 6.5 6.3 5.6 3.5 3.2 5.2 2.3 ****** 1994 3.7 5.1 4.8 4.1 5.1 4.7 3.6 3.5 2.7 3.2 5.4 4.8 4.2 1995 3.7 3.9 4.9 6.1 5.7 4.2 4.7 3.7 4.9 4.1 4.6 0.8 4.3 1996 2.1 6.6 8.6 9.0 5.7 6.3 6.9 5.4 4.9 6.1 2.8 3.0 5.6 1997 4.8 8.1 10.3 9.2 6.5 6.8 4.9 4.9 6.4 5.7 3.2 2.8 6.1 1998 4.9 8.4 8.4 8.3 7.8 4.8 6.3 4.8 4.3 4.1 2.0 3.8 5.7 1999 3.4 6.3 6.1 9.9 7.1 6.4 6.3 4.2 4.3 3.8 5.8 3.1 5.6 2000 4.4 3.8 7.0 5.7 5.6 4.7 4.7 4.1 3.6 3.6 2.2 4.0 4.4 2001 3.0 5.6 4.1 7.0 8.5 6.4 6.4 4.9 5.3 5.6 4.7 4.3 5.5 2002 4.5 5.4 6.9 8.7 8.0 6.6 5.8 4.0 1.9 2.1 2.5 5.0 5.1 2003 3.0 6.7 8.9 6.3 5.0 4.8 4.5 4.2 4.4 3.8 4.1 3.9 5.0 2004 4.5 7.2 5.3 7.2 7.4 4.7 4.5 4.5 2.5 2.5 4.4 2.6 4.8 2005 3.4 4.4 7.0 6.3 6.3 5.1 5.3 4.5 3.3 4.0 3.7 2.6 4.6 MEAN 3.8 5.9 6.8 7.3 6.6 5.5 5.4 4.5 4.0 4.0 3.9 3.3 5.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 37 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M FASTEST WIND DIRECTION AND SPEED IN KNOTS YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 190 260 270 240 360 280 250 210 250 220 *** DIRECTION ** ** 35 29 35 29 27 27 19 25 29 23 ** SPEED ** ** 8 21 20 4 16 27 27 30 6 4 DAY 1994 190 240 210 240 250 210 30 300 60 310 180 260 210 DIRECTION 27 31 37 29 25 23 19 25 17 31 25 29 37 SPEED 16 3 7 2 6 4 29 8 5 19 5 16 DAY 1995 250 210 260 250 240 180 190 150 240 270 230 240 230 DIRECTION 29 29 29 27 35 35 29 19 29 23 39 16 39 SPEED 18 8 25 19 8 3 6 23 20 9 11 4 DAY 1996 210 230 180 200 300 240 130 50 270 250 250 260 180 DIRECTION 23 29 39 35 29 29 29 23 31 33 23 23 39 SPEED 5 5 2 3 22 5 10 10 22 15 8 11 DAY 1997 200 210 200 320 270 310 170 360 280 250 220 230 270 DIRECTION 49 39 54 43 68 39 23 23 29 39 23 39 68 SPEED 16 19 28 15 19 23 4 1 27 3 5 10 DAY 1998 220 190 240 190 210 160 300 40 260 270 270 210 240 DIRECTION 29 49 58 49 45 27 54 19 27 29 25 33 58 SPEED 6 8 31 23 29 20 14 3 24 8 16 24 DAY 1999 100 210 190 200 250 260 210 150 270 280 240 240 250 DIRECTION 29 39 39 43 49 39 27 19 21 23 31 25 49 SPEED 9 20 26 3 14 6 13 22 12 29 26 3 DAY 2000 210 240 180 240 230 150 60 70 210 310 240 120 180 DIRECTION 39 29 58 39 39 35 25 23 23 31 23 29 58 SPEED 20 7 24 11 11 15 13 9 3 27 3 11 DAY 2001 240 210 180 270 180 270 120 250 330 270 210 210 210 DIRECTION 21 39 29 35 43 33 33 39 43 39 68 31 68 SPEED 15 18 24 12 11 8 8 31 23 30 18 20 DAY 2002 220 170 210 270 250 240 60 260 240 210 240 210 250 DIRECTION 35 39 43 43 49 39 29 33 39 27 23 45 49 SPEED 7 12 20 25 10 6 6 28 4 21 29 21 DAY 2003 180 210 210 240 320 280 140 60 270 240 250 210 210 DIRECTION 39 35 43 43 35 31 29 29 39 31 39 43 43 SPEED 28 3 20 16 8 13 5 3 30 4 20 19 DAY 2004 180 210 210 210 170 210 270 250 20 240 210 210 210 DIRECTION 39 54 47 39 49 31 31 23 23 35 43 43 54 SPEED 3 14 12 17 29 2 11 4 20 22 27 13 DAY 2005 200 240 270 230 210 120 310 240 270 210 270 180 240 DIRECTION 29 43 43 43 39 43 29 31 31 41 35 29 43 SPEED 3 1 9 4 3 14 16 30 27 21 22 24 DAY 1993-2005 200 210 240 190 270 120 300 250 330 210 210 210 270 DIRECTION 49 54 58 49 68 43 54 39 43 41 68 45 68 SPEED 97-16 4-14 98-31 98-23 97-19 5-14 98-14 1-31 1-23 5-21 1-18 2-21 97 YEAR-DAY =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 38 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M NO. OF CLEAR DAYS (0-2)/8 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 13 11 11 29 26 23 30 17 14 17 *** 1994 14 18 16 14 20 29 23 28 26 20 11 20 239 1995 21 13 15 7 13 27 30 30 28 28 24 12 248 1996 13 10 9 16 15 26 26 26 30 30 16 19 236 1997 21 24 15 13 16 22 23 31 30 22 11 18 246 1998 23 14 12 18 22 27 23 27 24 27 20 14 251 1999 8 14 14 13 26 30 30 24 30 27 19 20 255 2000 19 20 21 16 24 29 25 29 25 22 14 18 262 2001 22 18 19 14 25 27 26 26 28 26 19 11 261 2002 20 14 17 13 24 28 27 26 26 22 16 17 250 2003 17 14 18 12 17 27 24 30 30 24 19 16 248 2004 14 22 15 9 26 22 20 30 29 27 20 19 253 2005 23 19 17 19 23 30 24 31 30 29 19 18 282 MEAN 17.9 16.7 15.5 13.5 20.2 27.2 25.2 27.8 28.2 24.7 17.1 16.8 250.8 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 39 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M NO. OF PARTLY CLOUDY DAYS (3-6)/8 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 10 13 15 1 5 8 0 14 15 14 *** 1994 14 10 13 11 11 1 8 3 4 11 13 10 109 1995 7 11 11 14 15 3 1 1 2 2 6 11 84 1996 12 17 16 10 14 4 5 5 0 1 11 12 107 1997 4 4 12 15 12 7 8 0 0 9 12 11 94 1998 5 12 11 10 9 3 8 4 6 3 9 12 92 1999 15 11 8 16 5 0 1 7 0 4 10 9 86 2000 9 8 7 13 5 1 6 2 5 9 7 12 84 2001 6 7 9 14 4 3 5 5 2 5 11 11 82 2002 7 13 11 12 6 2 4 5 4 9 10 11 94 2003 7 13 8 9 14 2 7 1 0 7 9 13 90 2004 13 5 14 16 4 8 11 1 1 4 9 6 92 2005 4 7 9 8 8 0 7 0 0 2 9 10 64 MEAN 8.6 9.8 10.7 12.4 9.4 2.7 5.8 3.2 1.8 6.2 10.1 10.9 91.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 40 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M NO. OF CLOUDY DAYS (7-8)/8 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 *** *** 8 6 5 0 0 0 0 0 1 0 *** 1994 3 0 2 5 0 0 0 0 0 0 6 1 17 1995 3 4 5 9 3 0 0 0 0 1 0 8 33 1996 6 2 6 4 2 0 0 0 0 0 3 0 23 1997 6 0 4 2 3 1 0 0 0 0 7 2 25 1998 3 2 8 2 0 0 0 0 0 1 1 5 22 1999 8 3 9 1 0 0 0 0 0 0 1 2 24 2000 3 1 3 1 2 0 0 0 0 0 9 1 20 2001 3 3 3 2 2 0 0 0 0 0 0 9 22 2002 4 1 3 5 1 0 0 0 0 0 4 3 21 2003 7 1 5 9 0 1 0 0 0 0 2 2 27 2004 4 2 2 5 1 0 0 0 0 0 1 6 21 2005 4 2 5 3 0 0 0 0 0 0 2 3 19 MEAN 4.5 1.7 4.8 4.2 1.5 0.2 0.0 0.0 0.0 0.2 2.8 3.2 23.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 41 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 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 1993 *** *** 1 1 0 0 1 1 0 0 1 0 *** 1994 2 0 0 0 0 0 0 0 0 0 1 0 3 1995 0 0 0 0 0 0 0 0 0 0 0 7 7 1996 6 1 0 0 0 0 0 0 1 0 0 0 8 1997 0 0 0 0 0 0 0 0 0 0 0 2 2 1998 1 0 0 0 0 0 0 0 0 0 0 0 1 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 1 0 0 0 0 0 0 2 1 4 2001 0 1 0 0 1 0 0 1 0 0 0 1 4 2002 3 0 1 0 1 0 0 0 0 0 0 1 6 2003 3 0 3 1 4 0 0 0 0 0 0 7 18 2004 2 0 1 0 0 0 0 0 0 0 0 3 6 2005 4 0 0 0 1 0 0 0 0 0 0 0 5 MEAN 1.7 0.2 0.5 0.2 0.5 0.0 0.1 0.2 0.1 0.0 0.3 1.7 5.5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 42 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MONTHLY TOTAL OF SUNSHINE HOURS YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ***** ***** ***** ***** ***** ***** ***** ***** 310.8 ***** ***** ***** ****** 1994 ***** ***** ***** ***** 305.3 374.6 337.2 354.4 310.3 268.8 183.6 247.7 ****** 1995 250.5 218.5 248.7 187.7 ***** 205.0 380.2 369.4 320.5 ***** 267.3 162.3 ****** 1996 ***** ***** ***** 262.0 308.6 364.9 336.0 341.3 318.5 305.5 208.2 237.7 ****** 1997 219.7 270.3 264.6 262.2 291.9 315.6 314.6 373.2 331.2 273.1 173.9 214.6 3304.9 1998 247.0 229.2 229.6 285.0 346.3 347.3 322.8 347.7 310.8 307.0 255.5 228.0 3456.2 1999 168.2 211.0 238.3 276.5 370.5 380.6 363.3 338.4 324.7 295.1 252.3 238.4 3457.3 2000 210.8 242.0 281.0 286.6 357.5 361.9 341.5 344.4 294.0 274.2 185.5 220.1 3399.5 2001 235.0 234.7 283.8 287.7 339.3 360.4 337.7 358.5 323.5 300.0 236.1 166.9 3463.6 2002 232.2 239.8 274.1 239.1 348.2 365.5 352.4 345.3 313.2 288.1 217.5 214.8 3430.2 2003 203.0 242.1 239.3 226.7 321.3 353.8 316.3 366.3 334.5 280.3 253.3 207.1 3344.0 2004 208.9 245.0 258.7 236.7 329.0 306.2 308.7 342.4 317.0 297.1 216.1 189.5 3255.3 2005 233.2 239.8 269.6 272.4 314.2 381.2 334.4 348.9 325.5 312.6 231.9 210.7 3474.4 MEAN 220.8 237.2 258.8 256.6 330.2 343.1 337.1 352.5 318.0 291.1 223.4 211.5 3380.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 43 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF QFE PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** 813.6 814.4 815.1 812.8 812.0 813.6 815.2 819.6 816.7 817.8 ****** 1994 815.3 812.4 813.6 815.4 814.7 810.4 808.6 810.7 817.2 819.1 816.9 816.2 814.2 1995 816.6 813.8 814.0 814.1 816.0 812.2 809.0 812.6 814.8 817.6 817.2 816.6 814.5 1996 815.4 812.3 811.3 814.5 815.3 812.2 813.2 813.5 814.3 817.5 818.9 818.1 814.7 1997 814.3 813.9 811.0 813.6 815.6 812.6 809.0 812.5 816.0 818.2 817.2 815.3 814.1 1998 812.8 813.5 813.4 814.8 815.3 814.4 811.3 814.2 815.1 818.0 819.1 819.4 815.1 1999 814.9 814.4 812.6 814.7 814.4 812.3 810.2 813.6 813.9 817.8 816.5 819.1 814.5 2000 813.6 814.0 813.5 815.4 813.6 811.3 812.3 813.4 814.1 817.6 817.8 816.1 814.4 2001 815.5 814.2 814.4 814.9 813.4 811.0 810.6 814.3 815.8 817.9 817.2 817.9 814.8 2002 815.0 815.6 814.7 813.2 813.9 812.3 812.1 811.8 816.4 818.6 818.2 815.0 814.7 2003 815.4 812.2 813.0 815.1 815.5 811.7 809.3 813.3 815.2 818.5 818.1 817.6 814.6 2004 813.3 815.2 816.4 813.9 813.3 812.2 812.4 812.3 816.7 819.8 817.2 815.4 814.9 2005 814.3 812.4 813.4 816.1 814.6 812.0 811.3 812.3 814.5 819.2 817.7 818.0 814.6 MEAN 814.7 813.7 813.5 814.6 814.7 812.1 810.9 812.9 815.3 818.4 817.6 817.1 814.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 44 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MAX. OF QFE PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** 821.6 821.6 818.2 819.2 817.3 818.8 820.8 825.2 821.8 824.9 ****** DAY-HOUR **-** **-** 31- 6 18- 6 19- 3 23- 6 27- 6 31- 6 23- 6 17- 6 21- 6 26- 6 1994 823.1 819.0 819.8 821.2 819.8 815.4 812.8 815.2 824.8 824.7 823.6 820.9 824.8 DAY-HOUR 10- 6 20- 6 18- 6 5- 6 15- 3 9- 6 3- 6 22- 6 23- 6 10- 6 2- 6 28- 6 1995 823.5 819.5 821.2 819.0 820.3 817.6 813.7 817.1 820.9 824.7 823.5 820.4 824.7 DAY-HOUR 7- 6 1- 6 3- 6 13- 6 26-15 1- 6 4- 6 25- 6 13- 6 27- 6 16- 6 20- 6 1996 822.4 819.7 817.4 819.4 820.0 817.3 818.7 819.4 821.9 824.1 827.1 823.3 827.1 DAY-HOUR 26- 6 8- 6 29- 6 8- 6 17- 6 3- 6 3- 6 30- 6 25- 6 2- 6 18- 6 4- 6 1997 820.5 821.8 821.7 818.9 820.7 817.2 813.2 816.3 821.4 823.2 825.3 822.0 825.3 DAY-HOUR 7- 6 17- 6 11- 6 14- 6 12- 6 8- 6 28- 6 10- 6 19- 6 9- 6 8- 6 28- 6 1998 820.3 824.2 820.8 824.4 822.6 819.5 817.5 818.3 820.2 823.6 825.1 826.7 826.7 DAY-HOUR 4- 6 23- 6 28- 6 12- 6 8- 6 6- 6 20- 6 29- 3 29- 6 14- 6 21- 6 10- 6 1999 823.0 820.2 820.3 819.1 821.5 818.4 814.9 819.7 820.5 821.8 822.6 825.2 825.2 DAY-HOUR 3- 3 12- 6 31- 6 30- 6 28- 6 1- 6 19- 3 20- 6 30- 6 11- 6 18- 6 6- 6 2000 821.8 821.3 819.2 820.1 818.6 816.0 819.1 817.7 820.2 822.0 825.1 822.1 825.1 DAY-HOUR 31- 6 11- 6 21- 6 2- 6 4- 6 4- 6 30- 6 23- 6 29- 6 16- 6 17- 6 4- 6 2001 820.3 820.6 822.5 821.9 818.1 817.7 817.1 818.8 821.9 824.2 823.8 823.3 824.2 DAY-HOUR 14- 6 9- 6 1- 6 2- 6 17- 3 2- 6 29- 6 5- 6 22- 6 10- 6 2- 6 9- 6 2002 822.6 824.8 824.9 820.2 818.5 817.8 816.7 816.4 821.7 824.5 825.3 823.3 825.3 DAY-HOUR 26- 6 6- 6 11- 6 1- 6 10- 9 25- 6 3- 6 31- 6 21- 6 10- 6 18- 6 3- 6 2003 824.0 820.0 821.2 822.8 820.1 818.2 816.0 817.5 821.8 824.2 826.7 824.4 826.7 DAY-HOUR 12- 6 6- 6 2-15 8- 3 2- 6 1-21 3- 6 4- 6 27- 6 15- 6 25- 6 12- 6 2004 820.5 822.4 823.1 819.1 818.1 818.3 818.2 816.9 822.6 824.5 822.1 824.4 824.5 DAY-HOUR 12- 6 10- 6 24- 6 29- 6 18- 6 6- 6 18- 6 18- 6 27- 6 15- 6 1- 6 4- 6 2005 820.4 819.6 818.6 821.2 819.0 818.1 815.9 817.6 818.5 825.5 822.9 824.1 825.5 DAY-HOUR 9- 6 15- 6 29- 6 21- 6 24-18 16- 6 28- 6 17- 6 26- 6 12- 6 23- 6 8- 6 1993-2005 824.0 824.8 824.9 824.4 822.6 819.5 819.1 819.7 824.8 825.5 827.1 826.7 827.1 YEAR-DAY 3-12 2- 6 2-11 98-12 98- 8 98- 6 0-30 99-20 94-23 5-12 96-18 98-10 96-18 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 45 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MIN. OF QFE PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** 807.3 808.7 810.0 808.4 806.2 806.7 810.4 813.8 810.0 810.0 ****** DAY-HOUR **-** **-** 12- 9 13-12 31-12 25-15 13-12 12-15 3-15 3-12 14- 3 4-12 1994 804.3 805.0 805.0 809.0 808.8 805.2 804.6 805.6 809.4 814.5 809.4 805.0 804.3 DAY-HOUR 16-12 12- 3 12- 3 3-12 1-12 28-15 7-15 1-15 4-12 3-12 26- 3 4- 3 1995 811.7 804.7 808.8 807.7 810.5 807.5 804.4 808.5 810.7 812.5 810.6 810.6 804.4 DAY-HOUR 11-12 23-12 26-12 24-15 10-12 22-12 16-15 22-15 5-12 14-12 25-15 4-12 1996 807.6 717.4 801.3 808.4 811.0 806.6 807.8 804.4 806.9 811.0 813.9 813.6 717.4 DAY-HOUR 12-12 9- 6 15- 3 3- 9 29-15 19-15 6-12 8- 9 20-12 5-12 29-12 15- 3 1997 804.7 809.2 802.0 807.2 809.2 805.5 804.0 806.6 811.8 813.2 812.3 808.4 802.0 DAY-HOUR 17-12 27-12 29- 9 11- 9 5-12 30-15 16-15 5-15 2-12 23-15 19-12 10- 9 1998 800.9 803.6 802.8 808.3 808.3 809.2 803.9 808.4 809.1 812.3 814.1 812.9 800.9 DAY-HOUR 13- 9 15-12 1-12 21-12 30-12 13-15 8-12 22-12 4-12 1-12 1-12 21-12 1999 807.2 804.7 803.5 808.1 807.6 804.8 806.5 808.1 809.0 813.8 811.1 812.0 803.5 DAY-HOUR 18-12 6- 3 2-12 8-12 20-15 24-12 12-15 14-15 15-15 31-12 12- 3 15-12 2000 806.4 804.0 807.9 812.0 809.1 805.8 805.2 806.7 805.9 812.0 812.0 807.0 804.0 DAY-HOUR 17-12 7- 9 2- 3 21-15 27-15 25-15 12-15 30-15 1-12 1-12 6-12 15- 9 2001 808.8 804.7 803.6 809.0 806.9 805.8 804.2 808.7 810.5 813.9 807.1 810.0 803.6 DAY-HOUR 27- 3 21-12 26- 0 9-12 25-15 17-12 17-15 27-12 5-15 18-15 18-18 5- 0 2002 807.0 810.0 807.2 803.4 809.1 806.2 807.7 807.0 811.1 814.6 812.1 805.4 803.4 DAY-HOUR 21-15 25- 0 28-15 3- 9 4-12 21-12 23-15 17-12 18-12 29-12 25-12 21-15 2003 802.5 803.4 803.4 809.5 809.5 804.0 803.5 808.5 809.7 813.9 811.1 809.6 802.5 DAY-HOUR 28-12 19-12 26-12 17-12 29-12 30-12 25-15 1-12 7-12 27-12 14-12 6-12 2004 806.1 808.7 809.5 804.7 804.1 806.0 806.7 807.2 811.0 814.4 809.0 809.2 804.1 DAY-HOUR 27- 3 15-12 31-15 17-12 13-12 15-15 11-12 4-15 16-12 3-12 23-21 16-12 2005 801.9 806.6 804.9 809.3 806.4 805.2 803.4 806.9 809.3 812.0 811.5 809.3 801.9 DAY-HOUR 23- 3 9-12 24-12 29-15 6- 0 27-15 5-15 8-15 5-15 4-12 8-21 25-21 1993-2005 800.9 717.4 801.3 803.4 804.1 804.0 803.4 804.4 805.9 811.0 807.1 805.0 717.4 YEAR-DAY 98-13 96- 9 96-15 2- 3 4-13 3-30 5- 5 96- 8 0- 1 96- 5 1-18 94- 4 96- 9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 46 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF QNH PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** 1016.9 1017.8 1018.6 1015.9 1014.9 1016.9 1018.8 1024.0 1020.6 1021.9 ****** 1994 1018.9 1015.4 1016.9 1019.0 1018.2 1013.0 1010.9 1013.4 1021.2 1023.5 1020.8 1019.9 1017.6 1995 1020.4 1017.1 1017.3 1017.4 1019.7 1015.2 1011.3 1015.7 1018.3 1021.7 1021.2 1020.4 1018.0 1996 1019.1 1015.3 1014.1 1017.9 1018.9 1015.2 1016.3 1016.7 1017.7 1021.6 1023.2 1022.3 1018.2 1997 1017.7 1017.2 1013.8 1016.9 1019.2 1015.7 1011.4 1015.6 1019.8 1022.4 1021.2 1019.0 1017.5 1998 1016.0 1016.7 1016.6 1018.3 1018.9 1017.8 1014.1 1017.6 1018.7 1022.2 1023.4 1023.8 1018.7 1999 1018.4 1017.8 1015.7 1018.2 1017.8 1015.3 1012.8 1016.9 1017.3 1021.9 1020.3 1023.4 1018.0 2000 1016.9 1017.4 1016.7 1019.0 1016.9 1014.2 1015.4 1016.6 1017.5 1021.7 1021.9 1019.9 1017.8 2001 1019.2 1017.6 1017.8 1018.4 1016.7 1013.8 1013.3 1017.7 1019.5 1022.0 1021.2 1022.0 1018.3 2002 1018.6 1019.3 1018.2 1016.4 1017.2 1015.3 1015.1 1014.7 1020.2 1022.9 1022.4 1018.5 1018.2 2003 1019.1 1015.2 1016.2 1018.7 1019.2 1014.6 1011.7 1016.6 1018.8 1022.8 1022.3 1021.7 1018.1 2004 1016.5 1018.8 1020.3 1017.2 1016.5 1015.2 1015.5 1015.3 1020.6 1024.3 1021.2 1019.1 1018.4 2005 1017.7 1015.4 1016.6 1019.9 1018.1 1015.0 1014.2 1015.3 1017.9 1023.5 1021.8 1022.1 1018.1 MEAN 1018.2 1016.9 1016.7 1018.1 1018.1 1015.1 1013.6 1016.1 1019.0 1022.6 1021.6 1021.1 1018.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 47 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MAX. OF QNH PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** 1026.5 1026.5 1022.4 1023.6 1021.3 1023.1 1025.5 1030.8 1026.7 1030.4 ****** DAY-HOUR **-** **-** 31- 6 18- 6 19- 3 23- 6 27- 6 31- 6 23- 6 17- 6 21- 6 26- 6 1994 1028.3 1023.3 1024.3 1026.0 1024.3 1019.0 1015.9 1018.8 1030.3 1030.2 1028.9 1025.6 1030.3 DAY-HOUR 10- 6 20- 6 18- 6 5- 6 15- 3 9- 6 3- 6 22- 6 23- 6 10- 6 2- 6 28- 6 1995 1028.7 1023.9 1026.0 1023.3 1024.9 1021.7 1017.0 1021.1 1025.6 1030.2 1028.7 1025.0 1030.2 DAY-HOUR 7- 6 1- 6 3- 6 13- 6 26-15 1- 6 4- 6 25- 6 13- 6 27- 6 16- 6 20- 6 1996 1027.4 1024.2 1021.4 1023.8 1024.5 1021.3 1023.0 1023.8 1026.8 1029.5 1033.0 1028.5 1033.0 DAY-HOUR 26- 6 8- 6 29- 6 8- 6 17- 6 3- 6 3- 6 30- 6 25- 6 2- 6 18- 6 4- 6 1997 1025.1 1026.7 1026.6 1023.2 1025.4 1021.2 1016.4 1020.1 1026.2 1028.4 1030.9 1026.9 1030.9 DAY-HOUR 7- 6 17- 6 11- 6 14- 6 12- 6 8- 6 28- 6 10- 6 19- 6 9- 6 8- 6 28- 6 1998 1024.9 1029.6 1025.5 1029.8 1027.7 1023.9 1021.5 1022.5 1024.8 1028.9 1030.6 1032.6 1032.6 DAY-HOUR 4- 6 23- 6 28- 6 12- 6 8- 6 6- 6 20- 6 29- 3 29- 6 14- 6 21- 6 10- 6 1999 1028.1 1024.8 1024.9 1023.5 1026.3 1022.6 1018.4 1024.2 1025.1 1026.7 1027.7 1030.8 1030.8 DAY-HOUR 3- 3 12- 6 31- 6 30- 6 28- 6 1- 6 19- 3 20- 6 30- 6 11- 6 18- 6 6- 6 2000 1026.7 1026.1 1023.6 1024.7 1022.9 1019.7 1023.5 1021.8 1024.8 1026.9 1030.6 1027.1 1030.6 DAY-HOUR 31- 6 11- 6 21- 6 2- 6 4- 6 4- 6 30- 6 23- 6 29- 6 16- 6 17- 6 4- 6 2001 1024.9 1025.3 1027.5 1026.8 1022.3 1021.8 1021.1 1023.1 1026.8 1029.6 1029.1 1028.5 1029.6 DAY-HOUR 14- 6 9- 6 1- 6 2- 6 17- 3 2- 6 29- 6 5- 6 22- 6 10- 6 2- 6 9- 6 2002 1027.7 1030.3 1030.4 1024.8 1022.7 1021.9 1020.6 1020.2 1026.6 1029.9 1030.9 1028.5 1030.9 DAY-HOUR 26- 6 6- 6 11- 6 1- 6 10- 9 25- 6 3- 6 31- 6 21- 6 10- 6 18- 6 3- 6 2003 1029.3 1024.5 1026.0 1027.9 1024.7 1022.4 1019.7 1021.5 1026.7 1029.6 1032.6 1029.8 1032.6 DAY-HOUR 12- 6 6- 6 2-15 8- 3 2- 6 1-21 3- 6 4- 6 27- 6 15- 6 25- 6 12- 6 2004 1025.1 1027.4 1028.3 1023.5 1022.3 1022.5 1022.4 1020.8 1027.7 1029.9 1027.1 1029.8 1029.9 DAY-HOUR 12- 6 10- 6 24- 6 29- 6 18- 6 6- 6 18- 6 18- 6 27- 6 15- 6 1- 6 4- 6 2005 1025.0 1024.1 1022.9 1026.0 1023.3 1022.3 1019.6 1021.7 1022.7 1031.1 1028.0 1029.5 1031.1 DAY-HOUR 9- 6 15- 6 29- 6 21- 6 24-18 16- 6 28- 6 17- 6 26- 6 12- 6 23- 6 8- 6 1993-2005 1029.3 1030.3 1030.4 1029.8 1027.7 1023.9 1023.5 1024.2 1030.3 1031.1 1033.0 1032.6 1033.0 YEAR-DAY 3-12 2- 6 2-11 98-12 98- 8 98- 6 0-30 99-20 94-23 5-12 96-18 98-10 96-18 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 48 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MIN. OF QNH PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** 1009.3 1011.0 1012.6 1010.6 1008.0 1008.6 1013.0 1017.1 1012.6 1012.6 ****** DAY-HOUR **-** **-** 12- 9 13-12 31-12 25-15 13-12 12-15 3-15 3-12 14- 3 4-12 1994 1005.7 1006.6 1006.6 1011.4 1011.1 1006.8 1006.1 1007.3 1011.8 1018.0 1011.8 1006.6 1005.7 DAY-HOUR 16-12 12- 3 12- 3 3-12 1-12 28-15 7-15 1-15 4-12 3-12 26- 3 4- 3 1995 1014.6 1006.2 1011.1 1009.8 1013.2 1009.6 1005.8 1010.8 1013.4 1015.6 1013.3 1013.3 1005.8 DAY-HOUR 11-12 23-12 26-12 24-15 10-12 22-12 16-15 22-15 5-12 14-12 25-15 4-12 1996 1009.7 901.4 1002.1 1010.6 1013.8 1008.5 1009.9 1005.8 1008.8 1013.8 1017.2 1016.9 901.4 DAY-HOUR 12-12 9- 6 15- 3 3- 9 29-15 19-15 6-12 8- 9 20-12 5-12 29-12 15- 3 1997 1006.2 1011.6 1003.0 1009.2 1011.6 1007.2 1005.4 1008.5 1014.7 1016.4 1015.3 1010.6 1003.0 DAY-HOUR 17-12 27-12 29- 9 11- 9 5-12 30-15 16-15 5-15 2-12 23-15 19-12 10- 9 1998 1001.6 1004.9 1003.9 1010.5 1010.5 1011.6 1005.2 1010.6 1011.5 1015.3 1017.5 1016.0 1001.6 DAY-HOUR 13- 9 15-12 1-12 21-12 30-12 13-15 8-12 22-12 4-12 1-12 1-12 21-12 1999 1009.2 1006.2 1004.8 1010.3 1009.7 1006.3 1008.4 1010.3 1011.4 1017.1 1013.9 1015.0 1004.8 DAY-HOUR 18-12 6- 3 2-12 8-12 20-15 24-12 12-15 14-15 15-15 31-12 12- 3 15-12 2000 1008.2 1005.4 1010.0 1015.0 1011.5 1007.5 1006.8 1008.6 1007.6 1015.0 1015.0 1009.0 1005.4 DAY-HOUR 17-12 7- 9 2- 3 21-15 27-15 25-15 12-15 30-15 1-12 1-12 6-12 15- 9 2001 1011.1 1006.2 1004.9 1011.4 1008.8 1007.5 1005.6 1011.0 1013.2 1017.2 1009.1 1012.6 1004.9 DAY-HOUR 27- 3 21-12 26- 0 9-12 25-15 17-12 17-15 27-12 5-15 18-15 18-18 5- 0 2002 1009.0 1012.6 1009.2 1004.6 1011.5 1008.0 1009.8 1009.0 1013.9 1018.1 1015.1 1007.0 1004.6 DAY-HOUR 21-15 25- 0 28-15 3- 9 4-12 21-12 23-15 17-12 18-12 29-12 25-12 21-15 2003 1003.6 1004.6 1004.6 1012.0 1012.0 1005.4 1004.8 1010.8 1012.2 1017.2 1013.9 1012.1 1003.6 DAY-HOUR 28-12 19-12 26-12 17-12 29-12 30-12 25-15 1-12 7-12 27-12 14-12 6-12 2004 1007.9 1011.0 1012.0 1006.2 1005.5 1007.8 1008.6 1009.2 1013.8 1017.8 1011.4 1011.6 1005.5 DAY-HOUR 27- 3 15-12 31-15 17-12 13-12 15-15 11-12 4-15 16-12 3-12 23-21 16-12 2005 1002.9 1008.5 1006.4 1011.7 1008.2 1006.8 1004.6 1008.8 1011.7 1015.0 1014.4 1011.7 1002.9 DAY-HOUR 23- 3 9-12 24-12 29-15 6- 0 27-15 5-15 8-15 5-15 4-12 8-21 25-21 1993-2005 1001.6 901.4 1002.1 1004.6 1005.5 1005.4 1004.6 1005.8 1007.6 1013.8 1009.1 1006.6 901.4 YEAR-DAY 98-13 96- 9 96-15 2- 3 4-13 3-30 5- 5 96- 8 0- 1 96- 5 1-18 94- 4 96- 9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 49 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** 1014.2 1009.8 1007.0 999.7 997.2 999.8 1004.8 1016.0 1015.8 1020.1 ****** 1994 1018.8 1014.7 1012.6 1010.3 1006.1 996.4 991.4 995.0 1009.6 1015.8 1015.8 1020.6 1008.9 1995 1020.0 1016.0 1013.4 1009.5 1008.6 999.7 992.2 998.4 1004.3 1013.5 1016.9 1023.6 1009.7 1996 1024.1 1013.7 1010.5 1009.3 1006.3 998.3 999.1 999.7 1002.9 1012.4 1019.7 1020.6 1009.7 1997 1017.3 1016.6 1010.6 1009.2 1007.3 999.5 991.4 997.9 1005.4 1011.9 1017.3 1018.7 1008.6 1998 1016.6 1014.9 1011.5 1008.6 1005.8 1001.4 995.6 1000.1 1004.2 1013.0 1018.5 1020.6 1009.3 1999 1018.8 1015.3 1011.8 1009.1 1004.3 997.8 994.4 999.9 1002.9 1012.3 1015.2 1023.0 1008.7 2000 1017.3 1016.7 1011.9 1008.0 1002.6 997.3 997.3 999.6 1002.2 1012.1 1018.6 1018.4 1008.5 2001 1020.2 1016.3 1011.8 1007.5 1002.8 996.6 994.2 1000.3 1005.0 1011.0 1016.4 1018.9 1008.4 2002 1018.5 1016.8 1012.5 1007.3 1004.1 998.7 996.7 996.5 1005.0 1012.5 1017.9 1017.3 1008.6 2003 1019.0 1012.0 1011.0 1008.6 1006.8 997.4 991.4 998.5 1004.0 1012.1 1018.2 1020.2 1008.3 2004 1015.3 1016.1 1014.3 1009.2 1003.9 998.4 997.9 997.3 1006.8 1014.8 1015.2 1019.3 1009.0 2005 1018.5 1014.7 1010.4 1010.0 1006.0 998.1 995.0 997.5 1002.7 1013.6 1017.6 1019.8 1008.6 MEAN 1018.7 1015.3 1012.0 1009.0 1005.5 998.4 994.9 998.5 1004.6 1013.2 1017.2 1020.1 1008.9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 50 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MAX. OF QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** 1023.3 1020.9 1013.9 1009.0 1005.6 1007.3 1013.7 1024.6 1025.8 1030.7 ****** DAY-HOUR **-** **-** 23- 6 1- 3 5-15 23- 3 28- 3 31- 3 23- 3 9- 3 30- 6 26- 6 1994 1032.7 1026.9 1022.9 1022.0 1014.5 1004.5 998.7 1003.3 1023.9 1024.7 1024.1 1033.3 1033.3 DAY-HOUR 10- 3 20- 6 18- 3 6- 3 15- 3 9- 3 3- 3 23- 3 23- 3 10- 3 20- 3 8- 3 1995 1030.7 1024.2 1024.4 1019.7 1017.2 1014.6 999.2 1003.9 1012.0 1025.6 1027.9 1033.2 1033.2 DAY-HOUR 7- 6 2- 6 3- 3 1- 3 27- 3 1- 3 29- 3 11- 3 22- 3 27- 3 28- 3 14-15 1996 1036.2 1025.8 1024.4 1017.3 1013.2 1005.7 1005.2 1009.8 1013.3 1022.8 1033.3 1041.4 1041.4 DAY-HOUR 27- 3 24- 6 30- 6 7- 6 7-15 3- 3 4- 3 30- 3 25- 6 20- 3 19- 3 15- 6 1997 1028.8 1028.3 1025.1 1018.4 1016.9 1006.7 997.0 1004.8 1013.3 1017.0 1027.4 1030.7 1030.7 DAY-HOUR 19- 6 8- 6 11- 6 13- 6 6- 3 1- 3 29- 3 30- 3 19- 3 18- 3 8- 3 22- 6 1998 1028.2 1032.4 1020.8 1022.2 1016.3 1008.0 1005.9 1007.7 1010.6 1021.7 1027.6 1031.8 1032.4 DAY-HOUR 22- 6 23- 6 6- 3 12- 3 3- 3 20- 3 21- 3 8- 3 18- 3 29- 6 21- 3 10- 6 1999 1033.1 1026.1 1021.6 1021.0 1012.2 1005.9 1004.9 1008.3 1014.8 1017.8 1026.6 1033.9 1033.9 DAY-HOUR 3- 3 7- 6 19- 6 11- 6 28- 3 1- 3 29- 3 20- 3 30- 3 21- 3 30-15 6- 6 2000 1032.0 1030.3 1020.8 1017.7 1012.1 1005.7 1007.0 1007.8 1011.7 1019.3 1029.8 1029.9 1032.0 DAY-HOUR 31- 6 11- 6 4- 3 2- 6 4- 3 14- 3 30- 3 21- 3 28- 3 7- 3 17- 6 17- 6 2001 1031.5 1027.5 1024.0 1016.9 1010.8 1007.0 1005.1 1007.5 1015.8 1020.1 1027.6 1029.5 1031.5 DAY-HOUR 29- 3 13- 6 2- 3 2- 3 11- 6 2- 3 29- 3 14- 3 22- 6 10- 3 21- 6 18- 6 2002 1030.6 1033.6 1028.6 1017.6 1010.2 1006.3 1004.4 1004.7 1014.4 1020.0 1028.6 1029.9 1033.6 DAY-HOUR 26- 6 6- 6 11- 3 1- 3 9- 3 25- 6 30- 6 30- 3 23-15 26- 6 19- 6 30- 3 2003 1031.4 1025.5 1029.3 1016.9 1016.6 1007.3 1002.1 1006.6 1014.6 1020.9 1033.9 1034.5 1034.5 DAY-HOUR 12- 6 6- 6 2-15 8- 3 2- 6 1-15 3- 3 12- 3 27- 3 16- 3 25- 6 12- 6 2004 1026.6 1028.6 1026.5 1019.0 1011.6 1008.9 1006.1 1004.7 1018.5 1023.4 1028.7 1034.0 1034.0 DAY-HOUR 12- 6 10- 6 23- 6 11-15 3-15 1- 3 18- 3 29- 3 27- 3 27- 3 29- 6 4- 3 2005 1029.2 1028.1 1018.6 1020.6 1012.2 1008.1 1005.0 1006.4 1009.7 1022.1 1026.7 1031.6 1031.6 DAY-HOUR 13- 6 15- 3 29- 3 9- 3 25- 3 4- 3 28- 3 18- 3 22- 3 24- 3 29- 6 31-15 1993-2005 1036.2 1033.6 1029.3 1022.2 1017.2 1014.6 1007.0 1009.8 1023.9 1025.6 1033.9 1041.4 1041.4 YEAR-DAY 96-27 2- 6 3- 2 98-12 95-27 95- 1 0-30 96-30 94-23 95-27 3-25 96-15 96-15 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 51 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MIN. OF QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** 1003.6 1002.7 997.3 994.4 988.2 991.6 995.8 1004.5 1004.9 1008.5 ****** DAY-HOUR **-** **-** 21- 9 26-12 31-12 25-15 13-12 12-12 3-12 3-12 11- 0 3- 9 1994 1000.8 1002.0 1000.3 999.4 998.3 988.5 984.5 988.5 994.3 1005.7 1007.4 1003.3 984.5 DAY-HOUR 16-12 12- 9 8-12 30-12 1-12 22-12 7-12 1-15 2-12 2-12 26- 9 4- 9 1995 1009.7 1003.9 1002.8 1002.5 1002.1 990.2 985.5 992.4 997.6 1004.7 1006.0 1010.3 985.5 DAY-HOUR 17-12 23-12 26-12 24-12 9-12 22-12 11-12 22-12 5-12 12- 9 12-12 4-12 1996 1011.8 1001.1 1003.7 999.8 998.4 978.2 992.4 990.6 993.8 1002.0 1010.7 1011.9 978.2 DAY-HOUR 6-15 5- 3 13-12 3- 9 29- 9 4- 9 6-12 8- 3 19-12 5-12 8- 9 22-12 1997 1003.5 1003.7 997.5 1001.3 1000.4 990.3 985.0 990.3 996.4 1005.4 1007.7 1003.9 985.0 DAY-HOUR 16- 6 22-12 29- 6 10- 9 31-12 30-12 16- 9 5-12 2-12 6-12 12-12 10- 9 1998 1001.7 1000.9 997.8 997.6 994.5 994.2 984.6 991.5 993.9 1000.7 1009.8 1009.4 984.6 DAY-HOUR 13- 3 8-12 1-12 23-12 30-12 9-12 8-12 22-12 4-12 1-12 1-12 21-12 1999 1004.2 1001.3 999.6 998.7 994.0 987.2 988.2 993.0 995.7 1007.6 1006.0 1009.0 987.2 DAY-HOUR 9-12 20-12 2-12 8-12 20- 9 24-12 5-12 9- 6 12- 9 7-12 26-12 15-12 2000 1007.4 1002.8 999.9 1001.6 994.6 985.6 987.1 990.8 991.2 1001.6 1008.1 1006.3 985.6 DAY-HOUR 21- 3 7- 9 24-18 21-18 27-12 25-12 11-21 30-12 2-12 1-12 1-12 11- 9 2001 1010.0 1001.3 998.2 1000.5 993.9 988.5 986.1 992.1 996.5 1003.0 1001.9 1008.0 986.1 DAY-HOUR 23-21 21- 0 25-12 9-12 25-12 30- 0 11-12 27- 9 5-12 2- 0 18-18 5- 0 2002 1004.1 1004.7 1000.0 995.8 996.4 990.6 991.2 990.5 998.2 1006.2 1005.0 1000.9 990.5 DAY-HOUR 7-21 25- 0 28-18 3- 9 21-12 19- 0 23-12 6-18 5-12 14-21 12-18 21-15 2003 1000.6 999.6 995.5 999.5 997.6 987.0 983.6 987.6 995.8 1004.0 1005.7 1007.4 983.6 DAY-HOUR 28-12 19-12 26-12 21- 0 29- 9 30-12 26-12 1- 6 7-12 1- 0 2- 0 19-12 2004 1003.5 1002.8 1003.4 996.2 992.0 989.6 991.0 990.3 998.0 1006.0 1002.5 1007.8 989.6 DAY-HOUR 27- 0 15- 0 31- 9 17- 3 13- 9 18-12 11- 9 15-12 5-12 3-12 23-21 15- 0 2005 1002.6 1005.0 998.7 1000.1 996.5 987.8 986.0 989.2 995.1 1002.6 1005.9 1005.1 986.0 DAY-HOUR 23- 0 2- 0 24- 0 27- 0 5-12 19-12 5-12 8-12 5-12 4-12 8-12 23-21 1993-2005 1000.6 999.6 995.5 995.8 992.0 978.2 983.6 987.6 991.2 1000.7 1001.9 1000.9 978.2 YEAR-DAY 3-28 3-19 3-26 2- 3 4-13 96- 4 3-26 3- 1 0- 2 98- 1 1-18 2-21 96- 4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 52 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF COMPUTED QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** ****** ****** ****** ****** ****** 999.5 1004.7 1015.4 1015.3 1019.7 ****** 1994 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1997 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1998 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1999 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2000 ****** 1016.4 1011.8 1007.7 1002.3 997.0 997.1 999.4 1002.0 1011.9 1018.6 1018.3 ****** 2001 1020.2 1016.2 1011.7 1007.4 1002.6 996.4 994.0 1000.0 1004.8 1010.8 1016.4 1018.8 1008.3 2002 1018.5 1016.8 1012.4 1007.2 1003.9 998.6 996.4 996.3 1004.7 1012.3 1017.8 1017.3 1008.5 2003 1019.0 1012.1 1011.0 1008.6 1006.6 997.3 991.3 998.4 1003.9 1011.9 1018.1 1020.0 1008.2 2004 1015.3 1016.0 ****** ****** ****** ****** ****** ****** 1006.5 1014.6 1015.2 1019.5 ****** 2005 1018.4 1014.7 1010.4 1009.9 1005.8 998.0 994.8 997.3 1002.6 1013.5 1017.5 1019.8 1008.6 MEAN 1018.3 1015.4 1011.4 1008.1 1004.3 997.4 994.7 998.5 1004.2 1012.9 1017.0 1019.1 1008.4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 53 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MAX. OF COMPUTED QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** ****** ****** ****** ****** ****** 1007.0 1013.4 1024.2 1025.4 1030.2 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** 31- 3 23- 3 9- 3 30- 6 27- 3 1994 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1996 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1997 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1998 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1999 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 2000 ****** 1030.1 1021.0 1017.7 1012.2 1005.8 1007.0 1008.0 1011.8 1019.4 1029.9 1029.8 ****** DAY-HOUR **-** 11- 6 4- 3 2- 3 4- 3 14- 3 30- 3 21- 3 30- 3 6- 3 17- 6 17- 6 2001 1031.7 1027.8 1024.0 1016.9 1010.6 1007.1 1005.2 1007.6 1015.7 1020.1 1027.9 1029.5 1031.7 DAY-HOUR 29- 3 13- 6 2- 3 2- 3 11- 6 2- 3 29- 3 14- 3 22- 3 10- 3 21- 3 18- 6 2002 1030.7 1033.2 1029.2 1018.0 1010.2 1006.2 1004.8 1004.8 1014.0 1019.2 1028.3 1030.1 1033.2 DAY-HOUR 26- 3 6- 6 11- 3 1- 3 9- 3 25- 6 31- 3 31- 3 30- 3 26- 3 19- 6 30- 3 2003 1031.3 1025.4 1029.3 1016.9 1016.4 1007.3 1002.2 1006.5 1014.8 1020.9 1033.9 1034.5 1034.5 DAY-HOUR 12- 6 6- 6 2-15 8- 3 2- 6 4- 3 3- 3 12- 3 27- 3 16- 3 25- 3 12- 6 2004 1026.6 1028.6 ****** ****** ****** ****** ****** ****** 1018.3 1023.3 1028.9 1034.0 ****** DAY-HOUR 12- 6 10- 6 **-** **-** **-** **-** **-** **-** 27- 3 27- 6 29- 6 4- 3 2005 1029.4 1028.1 1018.6 1020.7 1012.2 1008.1 1005.0 1006.4 1009.7 1022.1 1026.7 1031.7 1031.7 DAY-HOUR 13- 6 15- 3 29- 3 9- 3 25- 3 4- 3 29- 3 18- 3 22- 3 24- 3 29- 6 31-15 1993-2005 1031.7 1033.2 1029.3 1020.7 1016.4 1008.1 1007.0 1008.0 1018.3 1024.2 1033.9 1034.5 1034.5 YEAR-DAY 1-29 2- 6 3- 2 5- 9 3- 2 5- 4 0-30 0-21 4-27 93- 9 3-25 3-12 3-12 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 54 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MIN. OF COMPUTED QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** ****** ****** ****** ****** ****** 991.6 996.6 1004.4 1004.7 1008.2 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** 12-21 3-12 3-12 11- 0 3- 9 1994 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1996 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1997 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1998 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1999 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 2000 ****** 1002.8 999.9 1001.3 993.7 986.7 987.0 990.4 990.5 1001.2 1007.9 1005.6 ****** DAY-HOUR **-** 7- 9 24-18 21-18 27-12 25-12 12-12 30-12 2-12 1-12 1-12 11- 9 2001 1010.0 1001.2 998.2 1000.2 993.5 988.2 985.9 991.8 996.2 1003.1 1001.8 1007.7 985.9 DAY-HOUR 23-21 21- 0 25-12 9-12 25-12 30-12 11-12 27- 9 5-12 2- 0 18-18 5-12 2002 1004.4 1004.7 1000.1 995.5 996.2 990.6 990.3 990.3 997.8 1006.0 1005.7 1001.4 990.3 DAY-HOUR 7-21 25- 0 28-18 3- 9 21-12 20-12 22-12 8-12 5-12 14-21 12-21 21-15 2003 1000.5 999.4 995.5 999.4 997.5 986.9 983.6 988.5 995.4 1003.4 1006.4 1007.0 983.6 DAY-HOUR 28-12 19-12 26-12 21- 0 29- 9 30-12 26-12 1-12 7-12 1-12 2-12 27-21 2004 1003.7 1002.9 ****** ****** ****** ****** ****** ****** 997.8 1005.8 1002.4 1008.9 ****** DAY-HOUR 27- 0 15- 0 **-** **-** **-** **-** **-** **-** 5-12 3-12 23-21 15- 0 2005 1002.7 1004.9 998.7 1000.0 996.4 987.6 985.9 989.0 994.8 1002.2 1005.9 1005.1 985.9 DAY-HOUR 23- 0 2- 0 24- 0 27- 0 5-12 19-12 5-12 8-12 5-12 4-12 8-12 23-21 1993-2005 1000.5 999.4 995.5 995.5 993.5 986.7 983.6 988.5 990.5 1001.2 1001.8 1001.4 983.6 YEAR-DAY 3-28 3-19 3-26 2- 3 1-25 0-25 3-26 3- 1 0- 2 0- 1 1-18 2-21 3-26 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 55 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF QFE PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** ****** ****** ****** ****** ****** 813.4 815.2 819.5 816.4 817.7 ****** 1994 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1997 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1998 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1999 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2000 ****** 813.6 813.3 815.2 813.8 811.5 812.4 813.6 814.2 817.6 817.7 816.0 ****** 2001 815.4 814.1 814.3 814.8 813.4 811.2 810.8 814.4 815.9 817.9 817.1 817.7 814.8 2002 815.0 815.4 814.5 812.9 813.8 812.5 812.1 811.8 816.4 818.7 818.1 814.9 814.7 2003 815.3 812.2 812.8 814.9 815.6 811.9 809.4 813.4 815.4 818.4 818.1 817.5 814.6 2004 813.3 814.8 ****** ****** ****** ****** ****** ****** 816.6 819.9 817.0 815.1 ****** 2005 814.2 812.2 813.1 816.0 814.8 812.3 811.3 812.5 814.5 819.2 817.7 817.9 814.6 MEAN 814.6 813.7 813.6 814.8 814.3 811.9 811.2 813.2 815.5 818.7 817.5 816.7 814.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 56 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MAX. OF QFE PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** ****** ****** ****** ****** ****** 817.4 818.8 823.5 820.8 823.9 ****** DAY ** ** ** ** ** ** ** 31 24 18 21 27 1994 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1996 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1997 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1998 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1999 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 2000 ****** 820.3 817.3 818.2 816.9 815.2 817.9 816.4 819.6 820.2 823.6 820.5 ****** DAY ** 11 21 13 4 17 31 14 30 6 17 30 2001 818.8 819.2 821.2 820.5 817.8 816.2 815.8 817.4 820.7 822.5 822.2 822.5 822.5 DAY 10 13 2 2 17 3 28 5 23 10 15 29 2002 821.0 823.0 823.2 817.3 816.9 816.0 815.6 815.3 819.9 822.5 823.7 821.8 823.7 DAY 28 6 11 1 11 25 30 30 23 11 19 30 2003 822.2 818.0 820.3 821.5 818.8 817.1 814.5 816.3 820.4 822.2 825.7 823.2 825.7 DAY 12 7 3 8 2 4 3 12 27 16 26 12 2004 819.3 821.0 ****** ****** ****** ****** ****** ****** 821.2 822.7 820.7 823.7 ****** DAY 12 10 ** ** ** ** ** ** 27 27 1 4 2005 819.7 818.1 817.1 820.0 818.3 816.5 815.2 816.5 817.0 823.8 820.9 822.1 823.8 DAY 1 18 29 21 26 16 28 18 3 12 29 8 1993-2005 822.2 823.0 823.2 821.5 818.8 817.1 817.9 817.4 821.2 823.8 825.7 823.9 825.7 YEAR-DAY 3-12 2- 6 2-11 3- 8 3- 2 3- 4 0-31 93-31 4-27 5-12 3-26 93-27 3-26 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 57 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MIN. OF QFE PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** ****** ****** ****** ****** ****** 808.5 812.3 816.0 810.4 811.6 ****** DAY ** ** ** ** ** ** ** 13 29 3 14 5 1994 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1996 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1997 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1998 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1999 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 2000 ****** 805.4 808.6 812.0 810.6 807.9 806.8 808.2 807.8 813.3 813.0 808.6 ****** DAY ** 7 2 22 27 25 12 31 2 2 6 15 2001 809.1 805.8 803.6 809.5 809.1 807.5 806.4 810.5 812.2 814.9 808.1 810.0 803.6 DAY 27 22 26 10 9 18 18 25 6 2 19 5 2002 807.3 810.0 808.2 804.7 810.8 807.5 809.3 808.6 813.0 815.6 812.9 805.7 804.7 DAY 12 25 29 4 13 21 23 18 18 22 26 22 2003 807.1 804.7 806.8 809.8 810.6 806.6 805.0 809.7 811.6 815.2 814.2 811.0 804.7 DAY 29 19 13 21 29 30 26 1 8 1 2 28 2004 806.5 810.5 ****** ****** ****** ****** ****** ****** 812.4 816.4 809.3 809.4 ****** DAY 27 15 ** ** ** ** ** ** 12 3 24 17 2005 802.7 807.2 806.4 810.9 806.4 807.2 805.7 808.2 811.6 814.2 812.5 810.2 802.7 DAY 23 5 24 30 6 28 6 8 5 4 9 24 1993-2005 802.7 804.7 803.6 804.7 806.4 806.6 805.0 808.2 807.8 813.3 808.1 805.7 802.7 YEAR-DAY 5-23 3-19 1-26 2- 4 5- 6 3-30 3-26 0-31 0- 2 0- 2 1-19 2-22 5-23 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 58 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M AVERAGE OF QNH PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** ****** ****** ****** ****** ****** 1016.6 1018.8 1023.9 1020.3 1021.8 ****** 1994 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1997 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1998 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1999 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2000 ****** 1016.9 1016.6 1018.8 1017.1 1014.4 1015.4 1016.8 1017.6 1021.7 1021.8 1019.8 ****** 2001 1019.1 1017.4 1017.7 1018.3 1016.6 1014.0 1013.5 1017.8 1019.7 1022.1 1021.1 1021.8 1018.3 2002 1018.5 1019.1 1018.0 1016.1 1017.1 1015.5 1015.1 1014.8 1020.2 1023.0 1022.3 1018.4 1018.2 2003 1018.8 1015.2 1016.0 1018.4 1019.2 1014.9 1011.8 1016.7 1019.0 1022.6 1022.3 1021.5 1018.0 2004 1016.5 1018.3 ****** ****** ****** ****** ****** ****** 1020.5 1024.4 1021.0 1018.7 ****** 2005 1017.6 1015.2 1016.3 1019.8 1018.3 1015.3 1014.1 1015.6 1018.0 1023.6 1021.8 1022.0 1018.1 MEAN 1018.1 1017.0 1016.9 1018.3 1017.7 1014.8 1014.0 1016.4 1019.1 1023.0 1021.5 1020.6 1018.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 59 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MAX. 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. ANNUAL 1993 ****** ****** ****** ****** ****** ****** ****** 999.3 1004.6 1015.4 1014.9 1019.2 ****** 1994 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1996 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1997 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1998 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1999 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 2000 ****** 1015.6 1011.3 1007.7 1002.9 997.4 997.2 999.6 1001.7 1011.5 1017.9 1017.4 ****** 2001 1019.2 1015.6 1011.1 1007.1 1002.5 996.5 994.2 1000.1 1004.6 1010.4 1015.4 1018.0 1007.9 2002 1017.5 1015.9 1011.8 1006.6 1004.1 998.7 996.5 996.4 1004.6 1012.1 1017.0 1016.6 1008.2 2003 1017.8 1011.4 1010.1 1008.0 1006.7 997.7 991.3 998.4 1003.9 1011.3 1017.4 1019.1 1007.8 2004 1014.5 1015.0 ****** ****** ****** ****** ****** ****** 1006.2 1014.4 1014.3 1018.2 ****** 2005 1017.5 1013.9 1009.6 1009.9 1006.0 998.4 994.9 997.6 1002.6 1013.3 1016.8 1018.9 1008.3 MEAN 1017.3 1014.5 1010.8 1007.9 1004.4 997.7 994.8 998.6 1004.0 1012.6 1016.2 1018.2 1008.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 62 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MAX. 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. ANNUAL 1993 ****** ****** ****** ****** ****** ****** ****** 1004.8 1010.3 1020.7 1021.0 1028.1 ****** DAY ** ** ** ** ** ** ** 31 24 9 23 27 1994 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1996 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1997 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1998 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1999 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 2000 ****** 1027.6 1020.4 1014.1 1010.5 1003.7 1006.1 1004.3 1009.9 1017.0 1026.7 1027.2 ****** DAY ** 11 4 2 4 17 31 14 30 7 18 17 2001 1029.8 1025.9 1021.6 1014.8 1008.3 1004.7 1003.0 1005.1 1012.7 1017.2 1025.5 1025.6 1029.8 DAY 29 13 2 2 12 3 27 15 22 11 21 18 2002 1028.6 1030.2 1025.4 1015.5 1008.5 1003.1 1002.7 1003.0 1011.4 1016.6 1026.9 1028.9 1030.2 DAY 25 6 11 1 11 25 31 30 30 27 19 30 2003 1026.5 1021.6 1026.8 1015.5 1014.9 1005.9 999.3 1004.1 1012.3 1017.4 1031.2 1031.4 1031.4 DAY 12 7 3 4 2 4 3 11 27 15 26 13 2004 1025.3 1023.9 ****** ****** ****** ****** ****** ****** 1015.0 1021.3 1025.8 1031.7 ****** DAY 1 9 ** ** ** ** ** ** 28 27 29 4 2005 1026.3 1026.1 1015.8 1018.7 1011.5 1006.9 1003.2 1005.4 1006.8 1018.9 1022.8 1029.0 1029.0 DAY 14 15 29 9 26 4 28 18 22 31 26 31 1993-2005 1029.8 1030.2 1026.8 1018.7 1014.9 1006.9 1006.1 1005.4 1015.0 1021.3 1031.2 1031.7 1031.7 YEAR-DAY 1-29 2- 6 3- 3 5- 9 3- 2 5- 4 0-31 5-18 4-28 4-27 3-26 4- 4 4- 4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION SHAHREZA (40815) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 66 LATITUDE 31 59 N LONGITUDE 51 50 E DATA PROCESSING CENTER ELEVATION 1845.2 M MIN. OF COMPUTED QFF PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1993 ****** ****** ****** ****** ****** ****** ****** 992.6 999.1 1007.1 1004.7 1008.8 ****** DAY ** ** ** ** ** ** ** 13 4 3 11 3 1994 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1995 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** *