STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1977 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.3 7.6 10.4 15.1 19.5 24.6 26.0 25.6 23.6 16.8 14.0 9.5 16.4 MINIMUN AIR TEMPERATURE (C) 1.0 3.9 7.8 10.6 14.5 19.8 21.3 20.7 19.2 12.6 8.8 5.6 12.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 11 19 19 4 0 0 0 53 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 13 0 0 0 0 0 0 0 0 0 0 2 15 TEMPERATURE RECORDS LOWEST(C) -2.0 1.0 4.0 8.0 12.0 17.0 18.0 17.0 16.0 6.0 3.0 -1.0 -2.0 DAY 10 2 6 3 1 4 20 21 21 24 18 28 MAXIMUM AIR TEMPERATURE (C) 6.2 9.7 12.0 17.6 21.8 26.7 28.1 28.0 25.9 19.2 17.1 12.2 18.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 1 7 13 0 0 0 0 21 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 10.0 17.0 16.0 29.0 26.0 30.0 32.0 31.0 29.0 26.0 20.0 21.0 32.0 DAY 10 14 3 13 2 15 9 12 26 4 18 4 DIF. BETWEEN (MAX.-MIN.) (C) 5.2 5.8 4.2 7.0 7.3 6.9 6.8 7.3 6.7 6.6 8.3 6.6 6.5 MEAN DAILY TEMP. (MDT) (C) 3.6 6.8 9.9 14.1 18.2 23.3 24.7 24.3 22.6 15.9 13.0 8.9 15.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.5 1.0 68.5 115.5 105.5 46.5 1.0 0.0 0.0 339.5 HEATING DEG. DAYS(BASE 18 0C) 446.5 314.0 250.5 125.0 20.0 0.0 0.0 0.0 0.0 79.5 151.0 281.0 1667.5 DEWPOINT (MEAN C) 1.9 5.4 8.9 12.6 16.7 21.3 20.9 22.7 21.0 13.1 10.5 6.3 13.4 MIXING RATIO (G/KG) 4.32 5.54 7.04 9.24 11.90 16.12 15.68 17.62 15.67 9.54 7.93 6.04 10.55 VAPOUR PRESSURE (HPA) 7.09 9.04 11.46 14.85 19.06 25.49 24.79 27.84 24.98 15.41 12.85 9.83 16.89 SATURATION DEF. (HPA) 1.26 1.51 1.19 2.75 3.88 5.79 9.10 5.48 4.48 4.27 3.41 2.35 3.79 RELATIVE HUMIDITY (MEAN %) 86 87 91 86 84 82 74 85 86 80 80 82 84 RELATIVE HUMIDITY (MAX. %) 93 93 96 93 93 91 87 96 96 90 93 93 93 RELATIVE HUMIDITY (MIN. %) 78 80 86 80 77 75 65 77 79 71 69 71 76 RELATIVE HUMIDITY (MEAN% 03UTC) 92 92 95 93 93 90 85 96 96 89 92 91 92 RELATIVE HUMIDITY (MEAN% 09UTC) 80 82 88 83 81 79 69 81 80 73 71 74 78 RELATIVE HUMIDITY (MEAN% 15UTC) 88 89 92 86 83 81 75 84 87 83 85 86 85 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 171.0 25.6 41.0 32.6 78.1 65.0 55.7 151.3 225.1 259.4 96.0 165.8 1366.6 DAYS WITH PRECIPITATION >=10 6 1 0 1 2 2 2 5 3 7 4 4 37 DAYS WITH PRECIPITATION >= 5 12 2 4 2 7 3 3 7 4 10 4 9 67 DAYS WITH PRECIPITATION >= 1 16 5 12 5 15 3 4 10 12 15 9 14 120 DAYS WITH PRECIPITATION 17 6 12 6 18 7 8 13 13 16 12 17 145 GREATEST DAILY PRECIPITATION 28.0 12.0 8.0 18.0 15.0 43.0 36.0 71.0 96.0 115.0 33.0 44.0 115.0 DAY 5 25 5 21 21 27 18 19 30 22 13 7 DAY WITH THUNDER STORM 1 0 0 0 2 0 1 0 0 1 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 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 270 90 90 90 90 315 270 360 90 270 90 270 90 PREVAILING WIND SPEED(KNOTS) 9.3 9.7 8.3 6.9 6.3 10.1 8.9 6.8 6.8 11.6 6.7 9.8 7.5 PREVAILING WIND PERCENT 14.8 8.6 16.8 12.7 9.7 18.7 12.9 7.7 8.0 15.5 10.0 13.5 8.9 CALMS PERCENT OF WIND 73.5 73.6 51.0 58.7 57.4 31.3 45.8 63.9 58.0 61.3 78.7 69.7 60.2 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 283 59 9 360 347 343 312 350 351 294 49 271 336 VECTOR WIND MAGNITUDE(KNOTS) 1.4 0.9 1.3 1.3 1.4 2.6 2.4 0.8 0.7 1.2 0.4 0.7 1.0 WIND STEADINESES (MEAN %) 58.3 42.9 32.5 40.6 45.2 45.6 54.5 33.3 25.9 32.4 26.7 28.0 32.3 WIND SPEED (MEAN KNOTS) 2.4 2.1 4.0 3.2 3.1 5.7 4.4 2.4 2.7 3.7 1.5 2.5 3.1 FASTEST WIND DIRECTION 320 70 310 330 320 330 320 330 320 70 300 90 70 FASTEST WIND SPEED (KNOTS) 20 20 15 20 15 18 15 15 15 34 15 15 34 DAY 17 25 3 15 15 22 9 14 26 19 12 3 DAYS WITH SKY CLEAR (0-2)/8 5 9 3 5 7 10 9 16 9 6 10 6 95 DAYS WITH P.CLOUDY (3-6)/8 7 7 9 8 9 6 8 5 7 10 10 7 93 DAYS WITH CLOUDY (7-8)/8 19 12 19 17 15 14 14 10 14 15 10 18 177 DAYS WITH VISIBILITY =< 2 KM 2 11 13 12 5 4 1 5 4 2 2 2 63 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1977 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1027.5 1024.2 1023.9 1015.2 1016.0 1009.9 1008.7 1011.3 1016.7 1021.2 1020.7 1022.6 1018.2 MAX. QFE PRESSURE IN HPA 1039.3 1032.7 1040.8 1031.0 1023.1 1017.0 1014.6 1019.0 1030.6 1036.1 1030.1 1040.5 1040.8 DAY-HOUR 5- 3 17- 9 9- 9 1- 6 3- 6 9- 6 21- 6 29- 6 30- 6 23- 6 26-12 12-15 MIN. QFE PRESSURE IN HPA 1016.3 1007.6 1009.1 995.9 1003.9 1005.1 1002.3 1000.5 1009.5 1005.2 1008.1 1006.3 995.9 DAY-HOUR 20- 6 6- 3 2-15 24- 3 4-15 22-15 27-15 16-15 11-12 5- 3 18- 3 5-12 MEAN QNH PRESSURE IN HPA 1024.7 1021.3 1021.1 1012.4 1013.2 1007.0 1005.9 1008.5 1013.9 1018.4 1017.9 1019.8 1015.3 MAX. QNH PRESSURE IN HPA 1036.4 1029.9 1037.9 1028.2 1020.3 1014.2 1011.8 1016.2 1027.8 1033.2 1027.3 1037.6 1037.9 DAY-HOUR 5- 3 17- 9 9- 9 1- 6 3- 6 9- 6 21- 6 29- 6 30- 6 23- 6 26-12 12-15 MIN. QNH PRESSURE IN HPA 1013.5 1004.8 1006.3 993.1 1001.1 1002.3 999.5 997.7 1006.7 1002.4 1005.3 1003.5 993.1 DAY-HOUR 20- 6 6- 3 2-15 24- 3 4-15 22-15 27-15 16-15 11-12 5- 3 18- 3 5-12 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 1028.0 1024.5 1024.0 1015.2 1016.0 1010.2 1008.9 1011.5 1017.0 1021.5 1021.2 1022.9 1018.4 MAX. QFE PRESSURE IN HPA 1039.3 1032.6 1039.1 1030.2 1022.5 1016.7 1014.3 1018.5 1029.5 1035.2 1028.6 1038.7 1039.3 DAY 5 17 9 1 3 9 21 30 30 23 26 13 MIN. QFE PRESSURE IN HPA 1017.3 1007.6 1010.4 995.9 1006.9 1006.0 1002.5 1002.7 1010.4 1005.2 1008.1 1008.8 995.9 DAY 20 6 3 24 4 22 27 26 11 5 18 5 MEAN QNH PRESSURE IN HPA 1025.1 1021.7 1021.1 1012.4 1013.2 1007.4 1006.1 1008.7 1014.2 1018.7 1018.4 1020.1 1015.6 MAX. QNH PRESSURE IN HPA 1036.4 1029.8 1036.2 1027.4 1019.7 1013.9 1011.5 1015.7 1026.7 1032.3 1025.8 1035.8 1036.4 DAY 5 17 9 1 3 9 21 30 30 23 26 13 MIN. QNH PRESSURE IN HPA 1014.5 1004.8 1007.6 993.1 1004.1 1003.2 999.7 999.9 1007.6 1002.4 1005.3 1006.0 993.1 DAY 20 6 3 24 4 22 27 26 11 5 18 5 MEAN QFF PRESSURE IN HPA 1025.2 1021.9 1021.4 1012.7 1013.5 1007.8 1006.5 1009.1 1014.5 1019.0 1018.7 1020.3 1015.9 MAX. QFF PRESSURE IN HPA 1036.6 1030.0 1036.5 1027.6 1020.0 1014.3 1011.9 1016.0 1027.0 1032.6 1026.0 1036.0 1036.6 DAY 5 17 9 1 3 9 21 30 30 23 26 13 MIN. QFF PRESSURE IN HPA 1014.7 1005.0 1007.9 993.4 1004.4 1003.6 1000.1 1000.3 1008.0 1002.8 1005.6 1006.3 993.4 DAY 20 6 3 24 4 22 27 26 11 5 18 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1977 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1028.2 1024.9 1024.8 1016.0 1016.4 1010.2 1009.3 1012.1 1017.5 1022.0 1021.6 1023.5 1018.9 MAX. QFE PRESSURE IN HPA 1038.9 1032.2 1040.4 1031.0 1023.1 1017.0 1014.6 1019.0 1030.6 1036.1 1029.5 1037.9 1040.4 DAY 5 17 9 1 3 9 21 29 30 23 26 13 MIN. QFE PRESSURE IN HPA 1016.3 1008.5 1013.7 1000.7 1007.0 1005.4 1003.1 1003.1 1010.8 1007.5 1009.1 1008.1 1000.7 DAY 20 6 3 24 4 22 27 26 11 17 18 5 MEAN QNH PRESSURE IN HPA 1025.4 1022.1 1021.9 1013.1 1013.6 1007.4 1006.5 1009.3 1014.7 1019.2 1018.8 1020.7 1016.1 MAX. QNH PRESSURE IN HPA 1036.0 1029.4 1037.5 1028.2 1020.3 1014.2 1011.8 1016.2 1027.8 1033.2 1026.7 1035.0 1037.5 DAY 5 17 9 1 3 9 21 29 30 23 26 13 MIN. QNH PRESSURE IN HPA 1013.5 1005.7 1010.9 997.9 1004.2 1002.6 1000.3 1000.3 1008.0 1004.7 1006.3 1005.3 997.9 DAY 20 6 3 24 4 22 27 26 11 17 18 5 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 1027.6 1024.4 1024.3 1015.5 1016.4 1010.1 1009.1 1011.6 1017.0 1021.5 1020.5 1022.6 1018.4 MAX. QFE PRESSURE IN HPA 1038.4 1032.7 1040.8 1030.0 1022.5 1016.4 1014.0 1018.5 1029.7 1035.7 1026.9 1037.0 1040.8 DAY 5 17 9 1 3 9 21 29 30 23 2 13 MIN. QFE PRESSURE IN HPA 1018.6 1009.8 1013.5 999.7 1006.3 1005.6 1003.5 1002.8 1010.8 1006.3 1009.0 1006.7 999.7 DAY 20 6 3 24 4 22 27 16 11 17 18 5 MEAN QNH PRESSURE IN HPA 1024.8 1021.6 1021.5 1012.7 1013.6 1007.3 1006.3 1008.8 1014.2 1018.6 1017.7 1019.8 1015.6 MAX. QNH PRESSURE IN HPA 1035.5 1029.9 1037.9 1027.2 1019.7 1013.6 1011.2 1015.7 1026.9 1032.8 1024.1 1034.1 1037.9 DAY 5 17 9 1 3 9 21 29 30 23 2 13 MIN. QNH PRESSURE IN HPA 1015.8 1007.0 1010.7 996.9 1003.5 1002.8 1000.7 1000.0 1008.0 1003.5 1006.2 1003.9 996.9 DAY 20 6 3 24 4 22 27 16 11 17 18 5 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 1026.9 1023.7 1023.4 1014.8 1015.7 1009.4 1008.4 1010.8 1016.0 1020.7 1019.9 1021.8 1017.6 MAX. QFE PRESSURE IN HPA 1037.7 1031.2 1040.0 1028.8 1021.8 1016.4 1013.1 1018.2 1028.6 1034.6 1030.1 1038.3 1040.0 DAY 5 21 9 1 21 9 21 19 30 23 26 12 MIN. QFE PRESSURE IN HPA 1017.1 1010.4 1010.3 998.0 1004.8 1005.2 1002.6 1001.3 1009.5 1005.6 1009.4 1006.3 998.0 DAY 19 6 2 24 4 22 27 16 11 17 11 5 MEAN QNH PRESSURE IN HPA 1024.0 1020.8 1020.6 1012.0 1012.9 1006.6 1005.6 1008.0 1013.2 1017.9 1017.1 1019.0 1014.8 MAX. QNH PRESSURE IN HPA 1034.8 1028.4 1037.1 1026.0 1019.0 1013.6 1010.3 1015.4 1025.8 1031.7 1027.3 1035.4 1037.1 DAY 5 21 9 1 21 9 21 19 30 23 26 12 MIN. QNH PRESSURE IN HPA 1014.3 1007.6 1007.5 995.2 1002.0 1002.4 999.8 998.5 1006.7 1002.8 1006.6 1003.5 995.2 DAY 19 6 2 24 4 22 27 16 11 17 11 5 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1977 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1026.9 1023.4 1023.3 1014.8 1015.5 1009.5 1008.1 1010.4 1016.0 1020.6 1020.5 1022.5 1017.6 MAX. QFE PRESSURE IN HPA 1037.1 1032.3 1039.2 1029.2 1021.8 1016.4 1012.7 1018.4 1028.7 1034.2 1030.0 1040.5 1040.5 DAY 5 21 9 1 28 9 19 29 30 23 26 12 MIN. QFE PRESSURE IN HPA 1016.6 1008.7 1009.1 997.7 1003.9 1005.1 1002.3 1000.5 1009.6 1006.6 1009.7 1008.9 997.7 DAY 19 24 2 24 4 22 27 16 11 17 11 5 MEAN QNH PRESSURE IN HPA 1024.1 1020.6 1020.5 1012.0 1012.7 1006.7 1005.3 1007.6 1013.2 1017.8 1017.7 1019.6 1014.8 MAX. QNH PRESSURE IN HPA 1034.2 1029.5 1036.3 1026.4 1019.0 1013.6 1009.9 1015.6 1025.9 1031.3 1027.2 1037.6 1037.6 DAY 5 21 9 1 28 9 19 29 30 23 26 12 MIN. QNH PRESSURE IN HPA 1013.8 1005.9 1006.3 994.9 1001.1 1002.3 999.5 997.7 1006.8 1003.8 1006.9 1006.1 994.9 DAY 19 24 2 24 4 22 27 16 11 17 11 5 MEAN QFF PRESSURE IN HPA 1024.3 1020.8 1020.8 1012.3 1013.1 1007.0 1005.7 1008.0 1013.6 1018.1 1017.9 1019.9 1015.1 MAX. QFF PRESSURE IN HPA 1034.4 1029.7 1036.6 1026.6 1019.3 1014.0 1010.3 1015.9 1026.2 1031.6 1027.4 1037.8 1037.8 DAY 5 21 9 1 28 9 19 29 30 23 26 12 MIN. QFF PRESSURE IN HPA 1014.0 1006.1 1006.6 995.2 1001.5 1002.7 999.9 998.1 1007.2 1004.2 1007.2 1006.4 995.2 DAY 19 24 2 24 4 22 27 16 11 17 11 5 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 NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.3 8.1 10.1 14.2 16.4 20.8 25.5 25.5 24.2 19.6 11.4 11.3 16.3 MINIMUN AIR TEMPERATURE (C) 4.2 4.9 6.5 11.3 13.2 16.6 20.2 21.1 19.1 15.4 6.8 6.4 12.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 2 0 1 11 23 7 0 0 0 44 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 3 0 0 0 0 0 0 0 0 0 0 2 5 TEMPERATURE RECORDS LOWEST(C) -2.0 1.0 2.0 7.0 7.0 11.0 15.0 19.0 14.0 12.0 2.0 -1.0 -2.0 DAY 16 2 8 16 3 3 8 22 20 27 26 24 MAXIMUM AIR TEMPERATURE (C) 11.2 10.0 12.4 16.9 18.4 22.9 27.9 27.5 26.7 22.4 14.3 14.5 18.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 0 0 6 3 1 1 0 0 12 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.0 17.0 24.0 35.0 23.0 29.0 30.0 31.0 31.0 31.0 18.0 23.0 35.0 DAY 2 16 24 6 14 18 11 13 9 23 8 16 DIF. BETWEEN (MAX.-MIN.) (C) 7.0 5.1 5.9 5.6 5.2 6.3 7.7 6.4 7.6 7.0 7.5 8.1 6.7 MEAN DAILY TEMP. (MDT) (C) 7.7 7.5 9.5 14.1 15.8 19.7 24.0 24.3 22.9 18.9 10.6 10.5 15.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 14.0 0.0 12.0 94.5 102.5 61.5 1.5 0.0 0.0 286.0 HEATING DEG. DAYS(BASE 18 0C) 318.5 294.5 265.0 137.0 72.5 11.0 0.0 0.0 0.0 7.0 223.0 233.0 1561.5 DEWPOINT (MEAN C) 4.6 5.6 8.0 11.1 14.1 17.3 20.8 21.5 21.2 16.9 7.8 8.0 13.1 MIXING RATIO (G/KG) 5.31 5.63 6.67 8.31 10.08 12.48 15.62 16.25 15.95 12.02 6.58 6.76 10.14 VAPOUR PRESSURE (HPA) 8.65 9.17 10.80 13.35 16.20 19.89 24.77 25.74 25.32 19.34 10.74 10.95 16.24 SATURATION DEF. (HPA) 2.54 1.79 1.72 3.27 2.69 5.16 8.38 7.09 5.36 3.85 2.92 2.74 3.96 RELATIVE HUMIDITY (MEAN %) 79 84 87 84 86 81 76 79 84 85 80 81 82 RELATIVE HUMIDITY (MAX. %) 90 92 95 93 94 92 89 91 94 95 90 92 92 RELATIVE HUMIDITY (MIN. %) 69 77 80 75 80 71 67 71 75 76 69 70 73 RELATIVE HUMIDITY (MEAN% 03UTC) 88 92 94 89 94 91 88 90 94 93 89 90 91 RELATIVE HUMIDITY (MEAN% 09UTC) 71 79 84 78 83 75 70 73 77 79 71 72 76 RELATIVE HUMIDITY (MEAN% 15UTC) 84 87 88 87 86 81 76 80 85 87 86 87 85 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 63.9 61.3 72.2 39.0 112.9 173.5 4.4 14.7 104.9 176.9 375.9 119.2 1318.8 DAYS WITH PRECIPITATION >=10 4 2 2 0 3 3 0 0 1 5 8 4 32 DAYS WITH PRECIPITATION >= 5 5 6 4 4 7 6 0 1 2 9 12 6 62 DAYS WITH PRECIPITATION >= 1 8 8 8 10 10 9 3 5 4 11 15 12 103 DAYS WITH PRECIPITATION 10 10 11 13 16 12 5 6 6 13 18 15 135 GREATEST DAILY PRECIPITATION 17.0 17.0 27.0 8.0 43.0 71.0 2.0 6.0 93.0 67.0 117.0 36.0 117.0 DAY 30 22 13 12 23 22 5 20 26 14 2 23 DAY WITH THUNDER STORM 0 0 0 1 0 2 0 0 0 1 2 0 6 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 0 2 0 0 0 1 0 0 0 0 3 WIND DIRECTION (PREVAILING) 90 90 90 90 90 90 315 315 360 90 270 90 90 PREVAILING WIND SPEED(KNOTS) 8.0 6.5 8.0 7.3 7.5 9.0 8.3 9.8 7.5 7.5 9.2 7.6 7.5 PREVAILING WIND PERCENT 11.6 16.4 14.8 18.0 15.5 13.3 11.6 14.2 10.0 13.5 10.0 9.0 11.1 CALMS PERCENT OF WIND 68.4 64.3 61.9 49.3 56.1 52.7 58.1 54.2 70.7 76.8 71.3 78.1 63.5 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 20 38 44 359 37 30 346 330 15 74 305 64 7 VECTOR WIND MAGNITUDE(KNOTS) 0.4 0.9 1.0 1.2 1.2 1.2 1.7 2.5 1.2 0.7 1.0 0.2 0.9 WIND STEADINESES (MEAN %) 15.4 37.5 35.7 30.8 37.5 31.6 56.7 71.4 60.0 38.9 40.0 11.8 32.1 WIND SPEED (MEAN KNOTS) 2.6 2.4 2.8 3.9 3.2 3.8 3.0 3.5 2.0 1.8 2.5 1.7 2.8 FASTEST WIND DIRECTION 270 330 110 270 330 320 330 330 340 80 270 320 270 FASTEST WIND SPEED (KNOTS) 25 14 15 30 15 18 15 15 15 12 20 15 30 DAY 21 22 12 6 28 4 13 2 19 2 19 13 DAYS WITH SKY CLEAR (0-2)/8 9 5 6 5 7 9 19 6 16 6 12 10 110 DAYS WITH P.CLOUDY (3-6)/8 8 4 9 9 6 10 6 11 4 11 6 6 90 DAYS WITH CLOUDY (7-8)/8 14 19 16 16 18 11 6 14 10 14 12 15 165 DAYS WITH VISIBILITY =< 2 KM 2 5 6 6 5 2 0 1 3 5 2 0 37 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1022.7 1023.2 1018.7 1013.7 1016.0 1012.3 1011.8 1011.9 1013.0 1020.3 1025.8 1018.5 1017.3 MAX. QFE PRESSURE IN HPA 1037.9 1040.8 1030.5 1027.6 1029.8 1026.7 1019.8 1019.4 1026.5 1030.2 1035.1 1039.2 1040.8 DAY-HOUR 13- 6 5- 9 19- 9 13- 6 2- 6 8- 3 7- 6 21- 6 26- 6 10- 6 5- 3 23- 9 MIN. QFE PRESSURE IN HPA 1006.2 1005.6 996.7 998.6 1003.9 998.4 999.6 1003.0 1003.9 1008.8 1014.9 999.2 996.7 DAY-HOUR 21- 3 21-15 24-15 10- 3 31-15 21-12 1- 3 13-15 30-15 27-12 7-15 16- 9 MEAN QNH PRESSURE IN HPA 1019.9 1020.3 1015.8 1010.9 1013.2 1009.5 1008.9 1009.1 1010.2 1017.5 1023.0 1015.6 1014.5 MAX. QNH PRESSURE IN HPA 1035.0 1037.9 1027.7 1024.8 1027.0 1023.9 1017.0 1016.6 1023.7 1027.4 1032.2 1036.3 1037.9 DAY-HOUR 13- 6 5- 9 19- 9 13- 6 2- 6 8- 3 7- 6 21- 6 26- 6 10- 6 5- 3 23- 9 MIN. QNH PRESSURE IN HPA 1003.4 1002.8 993.9 995.8 1001.1 995.6 996.8 1000.2 1001.1 1006.0 1012.1 996.4 993.9 DAY-HOUR 21- 3 21-15 24-15 10- 3 31-15 21-12 1- 3 13-15 30-15 27-12 7-15 16- 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 1022.3 1023.5 1018.8 1013.8 1016.1 1012.2 1011.7 1012.3 1013.4 1020.5 1025.9 1019.0 1017.5 MAX. QFE PRESSURE IN HPA 1034.3 1039.7 1029.3 1027.2 1027.7 1026.7 1019.0 1018.6 1024.5 1029.1 1035.1 1037.6 1039.7 DAY 13 5 19 13 2 8 7 21 26 10 5 24 MIN. QFE PRESSURE IN HPA 1006.2 1008.0 1006.3 998.6 1006.1 1001.9 999.6 1003.2 1007.6 1010.7 1014.9 999.7 998.6 DAY 21 17 24 10 30 21 1 14 2 31 8 16 MEAN QNH PRESSURE IN HPA 1019.5 1020.7 1016.0 1011.0 1013.3 1009.4 1008.9 1009.5 1010.6 1017.7 1023.1 1016.1 1014.6 MAX. QNH PRESSURE IN HPA 1031.4 1036.8 1026.5 1024.4 1024.9 1023.9 1016.2 1015.8 1021.7 1026.3 1032.2 1034.7 1036.8 DAY 13 5 19 13 2 8 7 21 26 10 5 24 MIN. QNH PRESSURE IN HPA 1003.4 1005.2 1003.5 995.8 1003.3 999.1 996.8 1000.4 1004.8 1007.9 1012.1 996.9 995.8 DAY 21 17 24 10 30 21 1 14 2 31 8 16 MEAN QFF PRESSURE IN HPA 1019.7 1020.9 1016.2 1011.3 1013.6 1009.8 1009.3 1009.9 1011.0 1018.0 1023.3 1016.4 1015.0 MAX. QFF PRESSURE IN HPA 1031.7 1037.0 1026.7 1024.6 1025.1 1024.2 1016.5 1016.1 1022.0 1026.6 1032.5 1034.9 1037.0 DAY 13 5 19 13 2 8 7 21 26 10 5 24 MIN. QFF PRESSURE IN HPA 1003.7 1005.5 1003.8 996.2 1003.6 999.5 997.2 1000.8 1005.2 1008.2 1012.4 997.2 996.2 DAY 21 17 24 10 30 21 1 14 2 31 8 16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1023.4 1024.2 1019.4 1014.6 1016.4 1012.8 1012.4 1012.8 1013.9 1021.1 1026.4 1019.4 1018.1 MAX. QFE PRESSURE IN HPA 1037.9 1040.4 1030.0 1027.6 1029.8 1026.6 1019.8 1019.4 1026.5 1030.2 1034.9 1037.3 1040.4 DAY 13 5 19 13 2 8 7 21 26 10 5 24 MIN. QFE PRESSURE IN HPA 1011.2 1008.4 1004.3 1002.0 1006.0 1000.9 1001.4 1005.5 1007.9 1012.2 1016.1 999.4 999.4 DAY 21 17 24 25 31 21 1 14 9 27 8 16 MEAN QNH PRESSURE IN HPA 1020.5 1021.3 1016.6 1011.8 1013.6 1010.0 1009.6 1010.0 1011.1 1018.3 1023.6 1016.6 1015.2 MAX. QNH PRESSURE IN HPA 1035.0 1037.5 1027.2 1024.8 1027.0 1023.8 1017.0 1016.6 1023.7 1027.4 1032.0 1034.4 1037.5 DAY 13 5 19 13 2 8 7 21 26 10 5 24 MIN. QNH PRESSURE IN HPA 1008.4 1005.6 1001.5 999.2 1003.2 998.1 998.6 1002.7 1005.1 1009.4 1013.3 996.6 996.6 DAY 21 17 24 25 31 21 1 14 9 27 8 16 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1022.8 1023.4 1019.1 1014.2 1016.4 1012.7 1012.3 1012.3 1013.4 1020.4 1025.6 1018.4 1017.6 MAX. QFE PRESSURE IN HPA 1037.3 1040.8 1030.5 1026.6 1029.6 1025.4 1019.5 1018.6 1026.5 1029.9 1033.2 1039.2 1040.8 DAY 13 5 19 13 2 8 7 21 26 10 2 23 MIN. QFE PRESSURE IN HPA 1012.9 1006.7 1003.3 1001.8 1006.5 999.2 1000.8 1006.3 1006.2 1010.3 1016.2 999.2 999.2 DAY 4 17 24 25 31 21 1 5 30 27 7 16 MEAN QNH PRESSURE IN HPA 1019.9 1020.6 1016.3 1011.4 1013.6 1009.9 1009.5 1009.5 1010.6 1017.6 1022.8 1015.5 1014.8 MAX. QNH PRESSURE IN HPA 1034.4 1037.9 1027.7 1023.8 1026.8 1022.6 1016.7 1015.8 1023.7 1027.1 1030.4 1036.3 1037.9 DAY 13 5 19 13 2 8 7 21 26 10 2 23 MIN. QNH PRESSURE IN HPA 1010.1 1003.9 1000.5 999.0 1003.7 996.4 998.0 1003.5 1003.4 1007.5 1013.4 996.4 996.4 DAY 4 17 24 25 31 21 1 5 30 27 7 16 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 1022.3 1022.4 1018.1 1013.0 1015.7 1012.0 1011.5 1011.3 1012.5 1019.7 1025.4 1017.8 1016.8 MAX. QFE PRESSURE IN HPA 1036.2 1040.0 1029.7 1025.9 1029.1 1024.3 1019.0 1017.8 1025.1 1030.0 1033.8 1038.6 1040.0 DAY 13 5 19 13 2 8 7 21 26 10 2 23 MIN. QFE PRESSURE IN HPA 1007.6 1006.7 1000.2 1001.4 1004.3 998.4 1000.8 1004.6 1004.2 1008.8 1015.4 1006.6 998.4 DAY 4 17 24 25 31 21 1 13 30 27 7 16 MEAN QNH PRESSURE IN HPA 1019.4 1019.6 1015.3 1010.2 1012.9 1009.2 1008.7 1008.5 1009.6 1016.9 1022.5 1014.9 1014.0 MAX. QNH PRESSURE IN HPA 1033.3 1037.1 1026.9 1023.1 1026.3 1021.5 1016.2 1015.0 1022.3 1027.2 1030.9 1035.7 1037.1 DAY 13 5 19 13 2 8 7 21 26 10 2 23 MIN. QNH PRESSURE IN HPA 1004.8 1003.9 997.4 998.6 1001.5 995.6 998.0 1001.8 1001.4 1006.0 1012.6 1003.8 995.6 DAY 4 17 24 25 31 21 1 13 30 27 7 16 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1022.8 1022.3 1018.0 1012.8 1015.7 1011.7 1011.0 1011.0 1012.1 1019.8 1025.9 1017.9 1016.7 MAX. QFE PRESSURE IN HPA 1036.6 1040.1 1029.7 1026.2 1029.0 1023.6 1019.0 1017.2 1024.6 1029.5 1033.7 1038.3 1040.1 DAY 13 5 19 11 2 7 7 21 26 10 2 23 MIN. QFE PRESSURE IN HPA 1007.2 1005.6 996.7 1000.2 1003.9 998.5 1001.3 1003.0 1003.9 1010.0 1014.9 1006.1 996.7 DAY 4 21 24 9 31 30 1 13 30 31 7 15 MEAN QNH PRESSURE IN HPA 1020.0 1019.5 1015.2 1010.0 1012.9 1008.9 1008.2 1008.2 1009.3 1017.0 1023.0 1015.1 1013.9 MAX. QNH PRESSURE IN HPA 1033.7 1037.2 1026.9 1023.4 1026.2 1020.8 1016.2 1014.4 1021.8 1026.7 1030.9 1035.4 1037.2 DAY 13 5 19 11 2 7 7 21 26 10 2 23 MIN. QNH PRESSURE IN HPA 1004.4 1002.8 993.9 997.4 1001.1 995.7 998.5 1000.2 1001.1 1007.2 1012.1 1003.3 993.9 DAY 4 21 24 9 31 30 1 13 30 31 7 15 MEAN QFF PRESSURE IN HPA 1020.2 1019.7 1015.4 1010.3 1013.2 1009.2 1008.5 1008.6 1009.7 1017.3 1023.3 1015.3 1014.2 MAX. QFF PRESSURE IN HPA 1033.9 1037.4 1027.1 1023.6 1026.4 1021.1 1016.6 1014.8 1022.1 1027.0 1031.1 1035.6 1037.4 DAY 13 5 19 11 2 7 7 21 26 10 2 23 MIN. QFF PRESSURE IN HPA 1004.7 1003.1 994.2 997.7 1001.4 996.1 998.9 1000.6 1001.5 1007.5 1012.4 1003.5 994.2 DAY 4 21 24 9 31 30 1 13 30 31 7 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 NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.3 8.0 9.8 13.4 18.6 22.3 26.1 27.2 25.5 20.7 15.8 11.8 17.3 MINIMUN AIR TEMPERATURE (C) 4.0 4.0 5.8 10.1 14.6 18.7 22.6 22.1 20.7 17.0 11.6 6.7 13.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 28 27 17 0 0 0 74 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 3 0 2 0 0 0 0 0 0 0 0 0 5 TEMPERATURE RECORDS LOWEST(C) 0.0 1.0 0.0 5.0 10.0 16.0 19.0 19.0 17.0 13.0 8.0 2.0 0.0 DAY 12 2 5 18 1 4 9 2 20 28 22 23 MAXIMUM AIR TEMPERATURE (C) 11.4 10.4 12.4 15.6 21.0 24.3 28.2 29.3 27.9 22.5 18.2 14.5 19.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 2 6 16 10 0 0 0 34 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 25.0 17.0 19.0 23.0 28.0 30.0 31.0 32.0 32.0 27.0 28.0 20.0 32.0 DAY 4 7 25 20 18 21 12 16 1 2 2 1 DIF. BETWEEN (MAX.-MIN.) (C) 7.4 6.4 6.6 5.5 6.4 5.6 5.6 7.2 7.2 5.5 6.6 7.8 6.4 MEAN DAILY TEMP. (MDT) (C) 7.7 7.2 9.1 12.8 17.8 21.5 25.4 25.7 24.3 19.7 14.9 10.6 16.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 1.0 29.5 136.5 146.0 101.5 8.0 0.5 0.0 423.0 HEATING DEG. DAYS(BASE 18 0C) 320.0 302.0 275.0 155.0 34.5 0.0 0.0 0.0 0.0 8.5 97.0 228.0 1420.0 DEWPOINT (MEAN C) 5.1 5.8 6.6 11.3 14.7 18.0 22.4 22.6 21.9 17.3 12.2 8.1 13.8 MIXING RATIO (G/KG) 5.47 5.75 6.17 8.35 10.51 12.97 17.16 17.37 16.71 12.43 8.90 6.81 10.72 VAPOUR PRESSURE (HPA) 8.90 9.33 10.00 13.47 16.91 20.72 27.12 27.48 26.58 19.94 14.41 11.03 17.16 SATURATION DEF. (HPA) 2.34 1.62 2.35 2.09 4.84 6.50 7.03 8.97 6.51 4.67 3.79 3.09 4.48 RELATIVE HUMIDITY (MEAN %) 82 86 82 88 79 78 80 76 81 82 81 79 81 RELATIVE HUMIDITY (MAX. %) 93 94 94 95 90 88 90 87 89 91 94 91 91 RELATIVE HUMIDITY (MIN. %) 72 77 71 81 70 70 72 69 74 75 70 69 73 RELATIVE HUMIDITY (MEAN% 03UTC) 91 93 93 93 89 87 89 86 88 89 93 90 90 RELATIVE HUMIDITY (MEAN% 09UTC) 74 81 75 83 75 72 75 71 77 76 73 71 75 RELATIVE HUMIDITY (MEAN% 15UTC) 86 88 84 89 80 79 81 78 83 85 83 84 83 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 97.0 122.4 91.4 51.9 49.1 27.8 51.6 77.0 164.0 209.6 190.4 216.0 1348.2 DAYS WITH PRECIPITATION >=10 4 3 3 2 2 0 2 2 5 5 5 6 39 DAYS WITH PRECIPITATION >= 5 8 8 5 4 3 2 3 2 8 7 6 7 63 DAYS WITH PRECIPITATION >= 1 14 15 10 11 8 5 7 2 8 8 8 10 106 DAYS WITH PRECIPITATION 14 16 12 11 9 9 8 2 8 12 8 10 119 GREATEST DAILY PRECIPITATION 22.0 33.0 28.0 16.4 23.0 8.0 19.0 64.0 55.0 80.0 89.0 93.0 93.0 DAY 8 18 27 28 8 10 27 1 20 18 4 16 DAY WITH THUNDER STORM 0 0 1 0 0 0 1 0 0 1 0 0 3 DAYS WITH SNOW OR SLEET 0 1 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 270 270 270 90 315 270 270 270 45 270 90 270 270 PREVAILING WIND SPEED(KNOTS) 6.8 7.1 7.0 9.6 8.6 7.4 6.7 6.8 5.6 7.5 8.4 8.8 7.5 PREVAILING WIND PERCENT 7.1 15.0 7.1 6.7 7.7 5.3 7.1 2.6 3.3 14.8 12.7 11.0 7.2 CALMS PERCENT OF WIND 83.9 72.1 76.1 84.7 74.2 85.3 75.5 89.0 82.7 75.5 79.3 78.7 79.8 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 310 295 317 47 320 315 324 305 10 286 83 281 310 VECTOR WIND MAGNITUDE(KNOTS) 0.1 1.1 0.6 0.4 0.9 0.3 0.7 0.4 0.1 1.3 0.5 1.0 0.5 WIND STEADINESES (MEAN %) 8.3 55.0 33.3 28.6 47.4 30.0 41.2 50.0 10.0 68.4 26.3 58.8 33.3 WIND SPEED (MEAN KNOTS) 1.2 2.0 1.8 1.4 1.9 1.0 1.7 0.8 1.0 1.9 1.9 1.7 1.5 FASTEST WIND DIRECTION 320 330 330 80 240 270 300 270 160 320 270 250 270 FASTEST WIND SPEED (KNOTS) 15 15 20 18 12 12 12 10 10 16 30 15 30 DAY 25 12 25 11 8 14 21 19 7 27 5 16 DAYS WITH SKY CLEAR (0-2)/8 11 6 9 4 11 8 9 25 18 8 14 16 139 DAYS WITH P.CLOUDY (3-6)/8 5 2 12 6 7 7 13 3 2 9 6 8 80 DAYS WITH CLOUDY (7-8)/8 15 20 10 20 13 15 9 3 10 14 10 7 146 DAYS WITH VISIBILITY =< 2 KM 3 2 2 4 2 0 1 0 4 0 3 1 22 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1023.0 1019.0 1019.4 1017.4 1018.0 1014.7 1010.7 1012.1 1017.1 1018.2 1022.6 1019.7 1017.7 MAX. QFE PRESSURE IN HPA 1038.4 1035.7 1034.6 1035.1 1027.1 1025.5 1018.2 1020.0 1026.1 1030.3 1034.1 1035.2 1038.4 DAY-HOUR 18- 9 18- 6 4- 6 27-12 24- 6 10- 9 20- 6 3- 6 21- 6 8-15 11- 6 22- 6 MIN. QFE PRESSURE IN HPA 1005.7 1003.5 1003.8 1005.0 1009.8 1004.3 1001.6 1003.9 1006.7 1007.9 999.8 1006.4 999.8 DAY-HOUR 4-12 8-15 25-12 19-12 15-12 23-15 6-12 14- 3 17-12 24- 9 29-12 1-12 MEAN QNH PRESSURE IN HPA 1020.2 1016.2 1016.6 1014.5 1015.1 1011.8 1007.9 1009.3 1014.3 1015.4 1019.8 1016.9 1014.8 MAX. QNH PRESSURE IN HPA 1035.5 1032.8 1031.7 1032.2 1024.3 1022.7 1015.4 1017.2 1023.3 1027.5 1031.2 1032.3 1035.5 DAY-HOUR 18- 9 18- 6 4- 6 27-12 24- 6 10- 9 20- 6 3- 6 21- 6 8-15 11- 6 22- 6 MIN. QNH PRESSURE IN HPA 1002.9 1000.7 1001.0 1002.2 1007.0 1001.5 998.8 1001.1 1003.9 1005.1 997.0 1003.6 997.0 DAY-HOUR 4-12 8-15 25-12 19-12 15-12 23-15 6-12 14- 3 17-12 24- 9 29-12 1-12 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 1022.9 1018.5 1019.5 1017.1 1017.5 1015.0 1011.1 1012.1 1017.3 1018.3 1022.6 1019.4 1017.6 MAX. QFE PRESSURE IN HPA 1035.5 1034.6 1034.0 1034.7 1024.4 1023.6 1017.3 1019.0 1025.4 1026.0 1033.1 1034.1 1035.5 DAY 26 18 5 28 25 10 20 2 21 8 11 22 MIN. QFE PRESSURE IN HPA 1009.1 1007.3 1008.4 1005.2 1010.8 1006.0 1004.0 1003.9 1007.9 1010.4 1000.9 1008.0 1000.9 DAY 6 8 25 13 15 23 6 14 17 4 29 15 MEAN QNH PRESSURE IN HPA 1020.1 1015.7 1016.6 1014.2 1014.7 1012.2 1008.3 1009.3 1014.5 1015.5 1019.8 1016.6 1014.8 MAX. QNH PRESSURE IN HPA 1032.6 1031.7 1031.1 1031.8 1021.6 1020.8 1014.5 1016.2 1022.6 1023.2 1030.3 1031.2 1032.6 DAY 26 18 5 28 25 10 20 2 21 8 11 22 MIN. QNH PRESSURE IN HPA 1006.3 1004.5 1005.6 1002.4 1008.0 1003.2 1001.2 1001.1 1005.1 1007.6 998.1 1005.2 998.1 DAY 6 8 25 13 15 23 6 14 17 4 29 15 MEAN QFF PRESSURE IN HPA 1020.3 1015.9 1016.9 1014.5 1015.0 1012.6 1008.7 1009.7 1014.9 1015.8 1020.1 1016.9 1015.1 MAX. QFF PRESSURE IN HPA 1032.9 1032.0 1031.3 1032.1 1021.9 1021.1 1014.9 1016.6 1022.9 1023.5 1030.5 1031.5 1032.9 DAY 26 18 5 28 25 10 20 3 21 8 11 22 MIN. QFF PRESSURE IN HPA 1006.5 1004.8 1005.9 1002.7 1008.3 1003.6 1001.6 1001.5 1005.5 1008.0 998.4 1005.5 998.4 DAY 6 8 25 13 15 23 6 14 17 4 29 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1023.7 1019.5 1020.0 1017.8 1018.4 1015.2 1011.3 1012.7 1017.7 1019.0 1023.3 1020.5 1018.3 MAX. QFE PRESSURE IN HPA 1038.1 1035.7 1034.6 1034.9 1027.1 1024.7 1018.2 1020.0 1026.1 1027.1 1034.1 1035.2 1038.1 DAY 18 18 4 27 24 10 20 3 21 10 11 22 MIN. QFE PRESSURE IN HPA 1010.1 1006.9 1009.0 1007.1 1009.9 1006.0 1003.3 1004.7 1008.7 1009.4 999.9 1008.1 999.9 DAY 6 8 26 19 17 23 6 14 17 24 29 1 MEAN QNH PRESSURE IN HPA 1020.8 1016.7 1017.2 1015.0 1015.6 1012.4 1008.5 1009.9 1014.9 1016.2 1020.5 1017.6 1015.4 MAX. QNH PRESSURE IN HPA 1035.2 1032.8 1031.7 1032.0 1024.3 1021.9 1015.4 1017.2 1023.3 1024.3 1031.2 1032.3 1035.2 DAY 18 18 4 27 24 10 20 3 21 10 11 22 MIN. QNH PRESSURE IN HPA 1007.3 1004.1 1006.2 1004.3 1007.1 1003.2 1000.5 1001.9 1005.9 1006.6 997.1 1005.3 997.1 DAY 6 8 26 19 17 23 6 14 17 24 29 1 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 1023.3 1019.4 1019.7 1018.0 1018.5 1014.8 1011.1 1012.4 1017.3 1018.3 1022.8 1019.9 1018.0 MAX. QFE PRESSURE IN HPA 1038.4 1035.0 1033.7 1034.9 1026.6 1025.5 1017.5 1019.6 1024.0 1027.4 1033.7 1034.2 1038.4 DAY 18 18 5 27 24 10 20 3 21 8 10 22 MIN. QFE PRESSURE IN HPA 1007.9 1006.0 1006.0 1007.8 1010.0 1006.0 1002.9 1004.4 1007.5 1007.9 1000.3 1007.2 1000.3 DAY 4 8 25 4 14 23 6 14 17 24 29 1 MEAN QNH PRESSURE IN HPA 1020.5 1016.6 1016.9 1015.2 1015.7 1012.0 1008.3 1009.6 1014.5 1015.5 1020.0 1017.1 1015.1 MAX. QNH PRESSURE IN HPA 1035.5 1032.1 1030.9 1032.0 1023.8 1022.7 1014.7 1016.8 1021.2 1024.6 1030.9 1031.3 1035.5 DAY 18 18 5 27 24 10 20 3 21 8 10 22 MIN. QNH PRESSURE IN HPA 1005.1 1003.2 1003.2 1005.0 1007.2 1003.2 1000.1 1001.6 1004.7 1005.1 997.5 1004.4 997.5 DAY 4 8 25 4 14 23 6 14 17 24 29 1 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 1022.7 1018.9 1019.0 1017.1 1017.9 1014.2 1010.3 1011.9 1016.8 1017.7 1022.3 1019.4 1017.4 MAX. QFE PRESSURE IN HPA 1035.7 1034.8 1033.6 1035.1 1025.8 1025.1 1016.7 1018.4 1023.4 1028.8 1033.0 1033.6 1035.7 DAY 18 18 5 27 24 10 20 1 20 8 10 21 MIN. QFE PRESSURE IN HPA 1005.7 1004.3 1003.8 1005.0 1009.8 1005.8 1001.6 1004.6 1006.7 1008.0 999.8 1006.4 999.8 DAY 4 8 25 19 15 23 6 14 17 24 29 1 MEAN QNH PRESSURE IN HPA 1019.8 1016.1 1016.2 1014.3 1015.1 1011.4 1007.5 1009.1 1014.0 1014.9 1019.5 1016.6 1014.5 MAX. QNH PRESSURE IN HPA 1032.8 1031.9 1030.8 1032.2 1023.0 1022.3 1013.9 1015.6 1020.6 1026.0 1030.2 1030.8 1032.8 DAY 18 18 5 27 24 10 20 1 20 8 10 21 MIN. QNH PRESSURE IN HPA 1002.9 1001.5 1001.0 1002.2 1007.0 1003.0 998.8 1001.8 1003.9 1005.2 997.0 1003.6 997.0 DAY 4 8 25 19 15 23 6 14 17 24 29 1 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1022.6 1018.8 1018.9 1016.9 1017.5 1014.1 1009.9 1011.4 1016.6 1017.8 1022.2 1019.5 1017.2 MAX. QFE PRESSURE IN HPA 1036.0 1034.4 1032.9 1034.7 1025.2 1024.4 1016.1 1018.4 1024.6 1030.3 1032.5 1033.9 1036.0 DAY 18 18 4 27 24 10 20 1 20 8 10 21 MIN. QFE PRESSURE IN HPA 1006.5 1003.5 1005.0 1005.2 1010.0 1004.3 1003.3 1004.7 1006.7 1009.8 1003.7 1007.7 1003.3 DAY 4 8 25 19 15 23 6 15 17 24 29 1 MEAN QNH PRESSURE IN HPA 1019.8 1016.0 1016.1 1014.1 1014.7 1011.3 1007.1 1008.6 1013.7 1015.0 1019.4 1016.7 1014.4 MAX. QNH PRESSURE IN HPA 1033.1 1031.5 1030.1 1031.8 1022.4 1021.6 1013.3 1015.6 1021.8 1027.5 1029.7 1031.1 1033.1 DAY 18 18 4 27 24 10 20 1 20 8 10 21 MIN. QNH PRESSURE IN HPA 1003.7 1000.7 1002.2 1002.4 1007.2 1001.5 1000.5 1001.9 1003.9 1007.0 1000.9 1004.9 1000.5 DAY 4 8 25 19 15 23 6 15 17 24 29 1 MEAN QFF PRESSURE IN HPA 1020.0 1016.3 1016.3 1014.4 1014.8 1011.6 1007.5 1009.0 1014.1 1015.4 1019.7 1017.0 1014.7 MAX. QFF PRESSURE IN HPA 1033.4 1031.7 1030.2 1032.1 1021.5 1021.9 1013.7 1016.0 1022.1 1027.8 1029.9 1031.3 1033.4 DAY 18 18 4 27 30 10 20 28 20 8 10 21 MIN. QFF PRESSURE IN HPA 1004.0 1001.0 1002.5 1002.7 1007.5 1001.9 1000.9 1002.3 1004.3 1007.4 1001.2 1005.2 1000.9 DAY 4 8 25 19 15 23 6 15 17 24 29 1 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 NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.3 6.5 8.5 13.6 18.5 23.4 27.7 25.7 22.5 17.4 15.0 11.9 16.5 MINIMUN AIR TEMPERATURE (C) 3.7 3.7 6.2 10.7 14.7 18.8 22.1 20.8 18.4 13.7 11.6 6.9 12.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 3 21 14 2 0 0 0 40 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 2 3 0 0 0 0 0 0 0 0 0 0 5 TEMPERATURE RECORDS LOWEST(C) -1.0 -1.0 3.0 6.0 10.0 14.0 19.0 18.0 12.0 7.0 7.0 3.0 -1.0 DAY 25 3 7 18 7 1 5 4 24 22 21 23 MAXIMUM AIR TEMPERATURE (C) 9.7 8.3 9.9 15.3 20.4 25.2 30.0 28.0 25.0 20.7 18.2 15.4 18.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 1 1 18 12 0 0 0 0 32 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 16.0 11.0 15.0 21.0 30.0 32.0 33.0 31.0 29.0 26.0 24.0 23.0 33.0 DAY 29 7 23 24 22 4 26 15 3 3 12 5 DIF. BETWEEN (MAX.-MIN.) (C) 6.0 4.6 3.7 4.6 5.7 6.4 7.9 7.2 6.6 7.0 6.6 8.5 6.2 MEAN DAILY TEMP. (MDT) (C) 6.7 6.0 8.0 13.0 17.5 22.0 26.0 24.4 21.7 17.2 14.9 11.1 15.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 3.0 35.0 156.0 105.5 33.0 3.5 0.0 0.0 336.0 HEATING DEG. DAYS(BASE 18 0C) 338.0 348.0 309.0 150.0 33.0 0.0 0.0 0.0 1.0 47.0 95.5 213.0 1534.5 DEWPOINT (MEAN C) 4.5 4.3 6.9 11.3 15.1 19.2 22.6 22.7 19.7 14.9 12.5 8.7 13.5 MIXING RATIO (G/KG) 5.24 5.13 6.18 8.37 10.78 14.08 17.45 17.54 14.50 10.72 9.08 7.02 10.51 VAPOUR PRESSURE (HPA) 8.53 8.37 10.02 13.46 17.29 22.42 27.56 27.75 23.14 17.26 14.67 11.39 16.82 SATURATION DEF. (HPA) 1.93 1.37 1.14 2.30 4.23 6.61 9.90 5.58 4.34 2.95 2.54 2.80 3.81 RELATIVE HUMIDITY (MEAN %) 83 86 90 87 82 78 74 84 85 86 86 82 84 RELATIVE HUMIDITY (MAX. %) 92 95 96 95 91 87 83 93 94 96 95 94 93 RELATIVE HUMIDITY (MIN. %) 74 79 84 80 74 71 67 76 78 75 74 70 75 RELATIVE HUMIDITY (MEAN% 03UTC) 90 95 95 94 89 87 82 91 92 93 90 91 91 RELATIVE HUMIDITY (MEAN% 09UTC) 77 80 85 82 77 75 71 79 80 77 80 73 78 RELATIVE HUMIDITY (MEAN% 15UTC) 88 88 93 89 84 78 74 85 85 88 89 87 86 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 104.9 71.7 84.3 36.0 67.4 14.8 3.2 141.7 64.4 299.8 207.0 149.9 1245.1 DAYS WITH PRECIPITATION >=10 5 2 3 0 1 0 0 3 4 8 6 2 34 DAYS WITH PRECIPITATION >= 5 7 5 7 4 1 1 0 11 5 10 9 9 69 DAYS WITH PRECIPITATION >= 1 10 13 13 6 4 4 2 14 13 16 10 13 118 DAYS WITH PRECIPITATION 13 16 16 11 6 7 4 15 15 18 11 14 146 GREATEST DAILY PRECIPITATION 22.0 15.4 16.0 9.0 62.0 6.0 2.0 37.0 10.0 130.0 53.0 50.0 130.0 DAY 7 12 3 17 16 19 17 27 8 20 2 12 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 0 0 0 2 2 DAYS WITH SNOW OR SLEET 2 0 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH DUST 1 0 0 0 2 0 0 2 0 0 0 0 5 WIND DIRECTION (PREVAILING) 270 90 90 315 270 360 360 270 270 90 360 90 270 PREVAILING WIND SPEED(KNOTS) 9.3 7.5 8.6 8.6 10.6 8.4 6.8 7.0 7.8 8.3 7.3 7.3 8.6 PREVAILING WIND PERCENT 16.8 11.7 8.4 12.7 17.4 8.7 9.7 8.4 6.5 8.7 4.3 10.3 7.4 CALMS PERCENT OF WIND 64.5 74.5 75.5 71.3 52.3 78.7 68.8 73.5 81.8 65.1 81.9 65.8 71.2 NO. OF WIND OBSERVATION 155 145 155 150 155 150 154 155 154 218 210 155 1956 VECTOR WIND DIRECTION (MEAN) 288 36 54 349 315 339 345 312 332 27 359 310 334 VECTOR WIND MAGNITUDE(KNOTS) 1.3 0.3 0.7 1.0 1.8 1.2 1.3 1.0 0.3 0.3 0.4 0.3 0.7 WIND STEADINESES (MEAN %) 39.4 15.8 38.9 45.5 45.0 70.6 65.0 55.6 23.1 11.1 30.8 11.5 31.8 WIND SPEED (MEAN KNOTS) 3.3 1.9 1.8 2.2 4.0 1.7 2.0 1.8 1.3 2.7 1.3 2.6 2.2 FASTEST WIND DIRECTION 270 90 100 320 270 270 340 340 270 290 270 280 270 FASTEST WIND SPEED (KNOTS) 30 13 12 12 20 15 12 12 15 15 15 18 30 DAY 22 24 15 4 15 5 7 3 21 3 10 31 DAYS WITH SKY CLEAR (0-2)/8 12 7 5 6 11 14 24 6 5 5 8 10 113 DAYS WITH P.CLOUDY (3-6)/8 7 3 2 9 7 10 3 11 12 12 10 10 96 DAYS WITH CLOUDY (7-8)/8 12 19 24 15 13 6 4 14 13 14 12 11 157 DAYS WITH VISIBILITY =< 2 KM 2 2 5 9 4 0 0 3 3 4 4 1 37 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1022.1 1024.2 1019.8 1014.1 1015.4 1013.1 1010.5 1012.6 1016.2 1020.1 1019.9 1020.7 1017.4 MAX. QFE PRESSURE IN HPA 1037.2 1034.4 1032.1 1027.9 1032.2 1023.6 1019.5 1025.1 1026.2 1029.3 1030.7 1033.2 1037.2 DAY-HOUR 31-15 2- 6 7- 6 1- 6 16- 6 11- 9 18- 3 30- 6 26- 6 20-15 3- 6 20- 6 MIN. QFE PRESSURE IN HPA 1006.4 1014.0 1003.4 1003.2 1003.8 1004.0 1003.1 1003.1 1006.3 1006.8 1005.6 1007.8 1003.1 DAY-HOUR 28-15 18-12 19- 3 4- 3 22-15 4-12 28-15 19-12 30-18 4- 3 9- 9 11-15 MEAN QNH PRESSURE IN HPA 1019.3 1021.4 1016.9 1011.3 1012.6 1010.3 1007.7 1009.8 1013.4 1017.3 1017.0 1017.9 1014.6 MAX. QNH PRESSURE IN HPA 1034.3 1031.5 1029.3 1025.1 1029.4 1020.8 1016.7 1022.3 1023.4 1026.5 1027.9 1030.4 1034.3 DAY-HOUR 31-15 2- 6 7- 6 1- 6 16- 6 11- 9 18- 3 30- 6 26- 6 20-15 3- 6 20- 6 MIN. QNH PRESSURE IN HPA 1003.6 1011.2 1000.6 1000.4 1001.0 1001.2 1000.3 1000.3 1003.5 1004.0 1002.8 1005.0 1000.3 DAY-HOUR 28-15 18-12 19- 3 4- 3 22-15 4-12 28-15 19-12 30-18 4- 3 9- 9 11-15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1017.7 1017.4 ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.7 1028.2 ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** 20-15 3- 6 **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1004.4 1003.2 ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** 4- 3 9- 9 **-** 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 1022.1 1024.2 1019.9 1014.1 1015.1 1013.5 1010.8 1012.9 1016.8 1020.0 1019.7 1020.7 1017.5 MAX. QFE PRESSURE IN HPA 1032.3 1034.3 1031.0 1027.1 1031.0 1022.6 1019.5 1024.7 1024.0 1027.2 1029.9 1032.2 1034.3 DAY 31 2 7 1 16 11 18 30 8 21 3 20 MIN. QFE PRESSURE IN HPA 1006.6 1014.1 1003.4 1003.2 1005.1 1004.8 1004.3 1003.9 1010.0 1006.8 1007.1 1010.5 1003.2 DAY 29 18 19 4 4 4 28 19 21 4 9 11 MEAN QNH PRESSURE IN HPA 1019.3 1021.4 1017.1 1011.3 1012.3 1010.7 1008.0 1010.1 1013.9 1017.2 1016.9 1017.9 1014.7 MAX. QNH PRESSURE IN HPA 1029.5 1031.4 1028.2 1024.3 1028.2 1019.8 1016.7 1021.9 1021.2 1024.4 1027.1 1029.4 1031.4 DAY 31 2 7 1 16 11 18 30 8 21 3 20 MIN. QNH PRESSURE IN HPA 1003.8 1011.3 1000.6 1000.4 1002.3 1002.0 1001.5 1001.1 1007.2 1004.0 1004.3 1007.7 1000.4 DAY 29 18 19 4 4 4 28 19 21 4 9 11 MEAN QFF PRESSURE IN HPA 1019.5 1021.6 1017.3 1011.5 1012.6 1011.0 1008.4 1010.5 1014.3 1017.5 1017.2 1018.2 1015.0 MAX. QFF PRESSURE IN HPA 1029.6 1031.6 1028.4 1024.5 1028.5 1020.1 1017.1 1022.2 1021.5 1024.6 1027.4 1029.6 1031.6 DAY 31 2 7 1 16 11 18 30 8 21 3 20 MIN. QFF PRESSURE IN HPA 1004.1 1011.5 1000.9 1000.7 1002.7 1002.4 1001.9 1001.5 1007.6 1004.4 1004.6 1008.0 1000.7 DAY 29 18 19 4 4 4 28 19 21 4 9 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.6 1024.8 1020.1 1014.7 1016.0 1013.8 1011.1 1013.2 1017.3 1020.7 1020.7 1021.5 1018.0 MAX. QFE PRESSURE IN HPA 1033.8 1034.4 1032.1 1027.9 1032.2 1023.5 1019.0 1025.1 1026.2 1027.3 1030.7 1033.2 1034.4 DAY 31 2 7 1 16 11 18 30 26 21 3 20 MIN. QFE PRESSURE IN HPA 1007.7 1015.3 1004.8 1004.6 1006.0 1004.5 1004.7 1004.0 1010.0 1009.2 1007.3 1010.1 1004.0 DAY 6 18 19 26 4 4 28 19 21 4 9 28 MEAN QNH PRESSURE IN HPA 1019.8 1022.0 1017.3 1011.9 1013.1 1011.0 1008.3 1010.4 1014.5 1017.9 1017.8 1018.7 1015.2 MAX. QNH PRESSURE IN HPA 1030.9 1031.5 1029.3 1025.1 1029.4 1020.7 1016.2 1022.3 1023.4 1024.5 1027.9 1030.4 1031.5 DAY 31 2 7 1 16 11 18 30 26 21 3 20 MIN. QNH PRESSURE IN HPA 1004.9 1012.5 1002.0 1001.8 1003.2 1001.7 1001.9 1001.2 1007.2 1006.4 1004.5 1007.3 1001.2 DAY 6 18 19 26 4 4 28 19 21 4 9 28 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1018.2 1018.1 ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1024.7 1028.2 ****** ****** DAY ** ** ** ** ** ** ** ** ** 21 3 ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1006.8 1004.8 ****** ****** DAY ** ** ** ** ** ** ** ** ** 4 9 ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1022.1 1024.4 1020.0 1014.5 1015.8 1013.5 1011.0 1012.9 1016.7 1020.2 1019.9 1020.6 1017.6 MAX. QFE PRESSURE IN HPA 1034.7 1033.8 1031.8 1027.2 1031.7 1023.6 1019.0 1024.2 1023.8 1027.7 1030.1 1031.1 1034.7 DAY 31 2 7 1 16 11 18 30 9 20 2 17 MIN. QFE PRESSURE IN HPA 1008.3 1014.2 1005.7 1003.7 1006.5 1004.7 1004.8 1003.6 1010.0 1010.3 1005.6 1010.3 1003.6 DAY 6 18 2 26 14 4 28 19 13 4 9 6 MEAN QNH PRESSURE IN HPA 1019.3 1021.6 1017.1 1011.7 1013.0 1010.7 1008.2 1010.1 1013.9 1017.3 1017.1 1017.8 1014.8 MAX. QNH PRESSURE IN HPA 1031.8 1030.9 1029.0 1024.4 1028.9 1020.8 1016.2 1021.4 1021.0 1024.9 1027.3 1028.3 1031.8 DAY 31 2 7 1 16 11 18 30 9 20 2 17 MIN. QNH PRESSURE IN HPA 1005.5 1011.4 1002.9 1000.9 1003.7 1001.9 1002.0 1000.8 1007.2 1007.5 1002.8 1007.5 1000.8 DAY 6 18 2 26 14 4 28 19 13 4 9 6 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1017.7 1017.4 ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.2 1027.6 ****** ****** DAY ** ** ** ** ** ** ** ** ** 20 2 ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1007.9 1003.2 ****** ****** DAY ** ** ** ** ** ** ** ** ** 4 9 ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1021.8 1023.6 1019.2 1013.7 1015.3 1012.8 1010.1 1012.1 1015.7 1019.6 1019.3 1020.1 1016.9 MAX. QFE PRESSURE IN HPA 1035.9 1033.8 1030.2 1026.0 1030.8 1022.0 1017.7 1022.9 1023.7 1028.0 1029.9 1030.3 1035.9 DAY 31 2 16 1 16 11 17 30 22 20 2 17 MIN. QFE PRESSURE IN HPA 1006.8 1014.0 1004.6 1003.7 1004.9 1004.0 1004.1 1003.1 1008.6 1009.1 1006.2 1008.1 1003.1 DAY 28 18 2 26 22 4 28 19 13 3 9 6 MEAN QNH PRESSURE IN HPA 1019.0 1020.8 1016.3 1010.9 1012.5 1010.0 1007.3 1009.3 1012.9 1016.8 1016.4 1017.3 1014.1 MAX. QNH PRESSURE IN HPA 1033.0 1030.9 1027.4 1023.2 1028.0 1019.2 1014.9 1020.1 1020.9 1025.2 1027.1 1027.5 1033.0 DAY 31 2 16 1 16 11 17 30 22 20 2 17 MIN. QNH PRESSURE IN HPA 1004.0 1011.2 1001.8 1000.9 1002.1 1001.2 1001.3 1000.3 1005.8 1006.3 1003.4 1005.3 1000.3 DAY 28 18 2 26 22 4 28 19 13 3 9 6 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1022.2 1024.1 1019.7 1013.7 1014.9 1012.2 1009.5 1012.0 1015.4 1020.1 1019.8 1020.6 1017.0 MAX. QFE PRESSURE IN HPA 1037.2 1033.8 1031.0 1024.2 1029.6 1020.8 1017.8 1023.1 1024.2 1029.3 1030.0 1030.6 1037.2 DAY 31 2 7 1 16 11 17 29 25 20 2 17 MIN. QFE PRESSURE IN HPA 1006.4 1016.2 1006.4 1004.8 1003.8 1004.3 1003.1 1003.1 1007.9 1009.4 1008.7 1007.8 1003.1 DAY 28 18 18 3 22 4 28 19 13 3 9 11 MEAN QNH PRESSURE IN HPA 1019.3 1021.2 1016.9 1010.9 1012.1 1009.4 1006.7 1009.2 1012.6 1017.3 1017.0 1017.8 1014.2 MAX. QNH PRESSURE IN HPA 1034.3 1030.9 1028.2 1021.4 1026.8 1018.0 1015.0 1020.3 1021.4 1026.5 1027.2 1027.8 1034.3 DAY 31 2 7 1 16 11 17 29 25 20 2 17 MIN. QNH PRESSURE IN HPA 1003.6 1013.4 1003.6 1002.0 1001.0 1001.5 1000.3 1000.3 1005.1 1006.6 1005.9 1005.0 1000.3 DAY 28 18 18 3 22 4 28 19 13 3 9 11 MEAN QFF PRESSURE IN HPA 1019.6 1021.5 1017.1 1011.2 1012.4 1009.8 1007.1 1009.6 1013.0 1017.6 1017.3 1018.0 1014.5 MAX. QFF PRESSURE IN HPA 1034.5 1031.1 1028.4 1021.6 1027.0 1018.3 1015.4 1020.6 1021.7 1026.7 1027.5 1028.0 1034.5 DAY 31 2 7 1 16 11 17 29 25 20 2 17 MIN. QFF PRESSURE IN HPA 1003.8 1013.6 1003.8 1002.3 1001.4 1001.9 1000.7 1000.7 1005.5 1007.0 1006.2 1005.3 1000.7 DAY 28 18 18 3 22 4 28 19 13 3 9 11 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1020.3 1019.8 ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1029.0 1030.0 ****** ****** DAY ** ** ** ** ** ** ** ** ** 20 3 ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1010.3 1009.6 ****** ****** DAY ** ** ** ** ** ** ** ** ** 3 22 ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1017.4 1017.0 ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.2 1027.2 ****** ****** DAY ** ** ** ** ** ** ** ** ** 20 3 ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1007.5 1006.8 ****** ****** DAY ** ** ** ** ** ** ** ** ** 3 22 ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1017.8 1017.3 ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.4 1027.5 ****** ****** DAY ** ** ** ** ** ** ** ** ** 20 3 ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1007.9 1007.1 ****** ****** DAY ** ** ** ** ** ** ** ** ** 3 22 ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1020.3 1020.0 ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1029.0 1029.6 ****** ****** DAY ** ** ** ** ** ** ** ** ** 20 2 ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1007.4 1011.4 ****** ****** DAY ** ** ** ** ** ** ** ** ** 3 8 ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1017.5 1017.2 ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.2 1026.8 ****** ****** DAY ** ** ** ** ** ** ** ** ** 20 2 ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1004.6 1008.6 ****** ****** DAY ** ** ** ** ** ** ** ** ** 3 8 ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1017.8 1017.5 ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.4 1027.1 ****** ****** DAY ** ** ** ** ** ** ** ** ** 20 3 ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1005.0 1008.9 ****** ****** DAY ** ** ** ** ** ** ** ** ** 3 8 ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1981 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 10.4 10.1 11.0 12.9 18.6 23.7 26.8 26.8 24.8 20.1 15.4 12.4 17.8 MINIMUN AIR TEMPERATURE (C) 5.1 5.9 7.2 9.9 14.9 19.1 22.0 22.6 19.3 15.1 10.0 6.9 13.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 7 22 29 17 1 0 0 76 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 1 1 0 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS LOWEST(C) 0.0 0.0 2.0 2.0 12.0 16.0 19.0 20.0 12.0 10.0 5.0 2.0 0.0 DAY 14 4 5 3 17 5 24 27 24 27 26 21 MAXIMUM AIR TEMPERATURE (C) 14.2 13.3 13.6 15.3 20.7 25.8 29.3 29.5 27.7 23.5 19.3 16.7 20.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 0 18 20 12 0 0 0 50 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.0 22.0 29.0 24.0 27.0 29.0 31.0 32.0 30.0 28.0 27.0 23.0 32.0 DAY 17 9 21 21 14 16 11 4 1 15 4 16 DIF. BETWEEN (MAX.-MIN.) (C) 9.1 7.4 6.4 5.4 5.8 6.7 7.3 6.9 8.4 8.4 9.3 9.8 7.6 MEAN DAILY TEMP. (MDT) (C) 9.6 9.6 10.4 12.6 17.8 22.5 25.7 26.1 23.5 19.3 14.6 11.8 17.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 1.5 50.5 144.5 157.0 86.0 7.0 0.0 0.0 446.5 HEATING DEG. DAYS(BASE 18 0C) 259.5 234.5 236.0 162.5 29.5 0.0 0.0 0.0 0.0 10.5 106.0 192.5 1231.0 DEWPOINT (MEAN C) 6.6 6.5 8.4 10.1 15.4 20.2 22.6 23.0 20.5 16.5 11.8 9.3 14.2 MIXING RATIO (G/KG) 6.10 6.05 6.89 7.83 10.97 15.09 17.47 17.85 15.31 11.74 8.75 7.39 10.95 VAPOUR PRESSURE (HPA) 9.90 9.82 11.14 12.63 17.61 23.99 27.62 28.23 24.42 18.93 14.11 11.96 17.53 SATURATION DEF. (HPA) 3.02 2.82 2.27 2.62 4.11 5.53 7.96 7.36 7.41 5.00 3.90 2.93 4.58 RELATIVE HUMIDITY (MEAN %) 79 79 85 84 83 82 79 80 78 81 80 82 81 RELATIVE HUMIDITY (MAX. %) 90 90 93 93 92 91 89 91 90 92 92 92 91 RELATIVE HUMIDITY (MIN. %) 66 68 77 76 75 73 72 72 69 70 68 72 72 RELATIVE HUMIDITY (MEAN% 03UTC) 86 88 92 93 91 90 88 91 90 89 90 90 90 RELATIVE HUMIDITY (MEAN% 09UTC) 71 71 80 79 80 79 74 74 70 74 71 73 75 RELATIVE HUMIDITY (MEAN% 15UTC) 85 84 87 83 81 80 78 82 81 87 87 89 84 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 79.8 115.7 126.2 97.4 100.0 18.2 51.4 66.0 191.0 194.4 129.6 77.0 1246.7 DAYS WITH PRECIPITATION >=10 3 5 5 2 3 0 3 2 3 6 4 3 39 DAYS WITH PRECIPITATION >= 5 4 7 7 6 5 1 3 3 3 6 6 4 55 DAYS WITH PRECIPITATION >= 1 4 11 10 18 14 6 6 6 4 11 8 8 106 DAYS WITH PRECIPITATION 7 13 14 19 16 11 9 8 5 12 8 9 131 GREATEST DAILY PRECIPITATION 39.0 32.0 41.0 31.0 33.0 6.4 20.0 36.0 126.0 80.0 50.0 30.0 126.0 DAY 12 2 31 1 16 6 20 6 22 17 23 29 DAY WITH THUNDER STORM 1 1 0 1 1 1 0 0 1 1 1 0 8 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 0 1 0 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 90 90 90 90 90 45 45 360 360 90 90 90 90 PREVAILING WIND SPEED(KNOTS) 6.8 6.5 7.4 6.9 6.8 5.6 5.3 6.9 7.8 6.1 6.2 6.9 6.6 PREVAILING WIND PERCENT 14.2 15.7 14.2 19.3 18.1 13.3 14.8 15.5 14.0 16.1 17.3 13.5 13.7 CALMS PERCENT OF WIND 67.1 53.6 47.7 46.7 53.5 48.0 45.8 42.6 39.3 39.4 41.3 52.9 48.2 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 32 26 347 18 48 24 4 353 358 70 7 87 20 VECTOR WIND MAGNITUDE(KNOTS) 0.7 1.1 1.2 1.4 1.6 1.8 1.6 2.0 1.9 0.9 0.5 1.3 1.2 WIND STEADINESES (MEAN %) 30.4 32.4 31.6 36.8 50.0 51.4 48.5 54.1 42.2 23.7 12.8 43.3 34.3 WIND SPEED (MEAN KNOTS) 2.3 3.4 3.8 3.8 3.2 3.5 3.3 3.7 4.5 3.8 3.9 3.0 3.5 FASTEST WIND DIRECTION 330 30 320 90 340 350 320 320 340 320 310 340 310 FASTEST WIND SPEED (KNOTS) 15 15 16 12 14 12 12 14 15 22 25 12 25 DAY 17 3 30 3 10 1 10 4 2 16 5 20 DAYS WITH SKY CLEAR (0-2)/8 12 3 8 6 9 8 13 7 15 13 15 9 118 DAYS WITH P.CLOUDY (3-6)/8 10 12 2 8 12 16 4 11 11 9 7 11 113 DAYS WITH CLOUDY (7-8)/8 9 13 21 16 10 6 14 13 4 9 8 11 134 DAYS WITH VISIBILITY =< 2 KM 0 3 5 2 4 0 0 0 0 0 0 2 16 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** 148.4 178.0 210.0 163.4 158.6 137.8 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1981 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1019.6 1020.1 1017.4 1017.3 1016.0 1013.9 1011.2 1012.1 1017.8 1022.1 1018.7 1019.7 1017.2 MAX. QFE PRESSURE IN HPA 1033.8 1032.3 1034.1 1028.2 1029.9 1022.3 1016.4 1017.4 1029.0 1031.4 1028.7 1031.0 1034.1 DAY-HOUR 29- 6 23- 9 8- 6 10- 6 21- 9 9- 9 24- 6 4- 6 23- 3 28- 9 15-15 1- 6 MIN. QFE PRESSURE IN HPA 1008.4 1006.0 998.8 999.4 999.4 1002.2 1004.3 1006.2 1006.4 1010.5 1003.8 1005.4 998.8 DAY-HOUR 3- 3 9- 3 13- 6 30-12 1- 3 16- 3 9-15 28-15 12- 6 13- 3 13- 9 18-12 MEAN QNH PRESSURE IN HPA 1016.8 1017.3 1014.5 1014.4 1013.2 1011.1 1008.4 1009.3 1015.0 1019.2 1015.9 1016.9 1014.3 MAX. QNH PRESSURE IN HPA 1030.9 1029.5 1031.2 1025.4 1027.1 1019.5 1013.6 1014.6 1026.2 1028.6 1025.9 1028.2 1031.2 DAY-HOUR 29- 6 23- 9 8- 6 10- 6 21- 9 9- 9 24- 6 4- 6 23- 3 28- 9 15-15 1- 6 MIN. QNH PRESSURE IN HPA 1005.6 1003.2 996.0 996.6 996.6 999.4 1001.5 1003.4 1003.6 1007.7 1001.0 1002.6 996.0 DAY-HOUR 3- 3 9- 3 13- 6 30-12 1- 3 16- 3 9-15 28-15 12- 6 13- 3 13- 9 18-12 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 1019.7 1020.0 1017.6 1017.6 1015.7 1014.1 1011.3 1012.2 1017.7 1021.8 1018.9 1019.7 1017.2 MAX. QFE PRESSURE IN HPA 1033.2 1031.8 1033.0 1027.5 1028.8 1021.8 1015.9 1017.2 1029.0 1030.1 1027.6 1030.6 1033.2 DAY 29 23 8 10 21 10 24 4 23 28 16 1 MIN. QFE PRESSURE IN HPA 1008.4 1006.0 999.1 1003.7 999.4 1002.2 1005.6 1008.4 1006.8 1010.5 1005.1 1007.4 999.1 DAY 3 9 13 30 1 16 9 13 12 13 13 16 MEAN QNH PRESSURE IN HPA 1016.9 1017.1 1014.8 1014.8 1012.9 1011.3 1008.4 1009.4 1014.9 1019.0 1016.0 1016.9 1014.4 MAX. QNH PRESSURE IN HPA 1030.4 1029.0 1030.2 1024.7 1026.0 1019.0 1013.1 1014.4 1026.2 1027.3 1024.8 1027.8 1030.4 DAY 29 23 8 10 21 10 24 4 23 28 16 1 MIN. QNH PRESSURE IN HPA 1005.6 1003.2 996.3 1000.9 996.6 999.4 1002.8 1005.6 1004.0 1007.7 1002.3 1004.6 996.3 DAY 3 9 13 30 1 16 9 13 12 13 13 16 MEAN QFF PRESSURE IN HPA 1017.2 1017.4 1015.0 1015.0 1013.2 1011.7 1008.9 1009.8 1015.2 1019.3 1016.3 1017.2 1014.7 MAX. QFF PRESSURE IN HPA 1030.6 1029.2 1030.4 1024.9 1026.3 1019.3 1013.5 1014.8 1026.5 1027.6 1025.0 1028.0 1030.6 DAY 29 23 8 10 21 10 24 4 23 28 16 1 MIN. QFF PRESSURE IN HPA 1005.8 1003.5 996.6 1001.2 996.9 999.8 1003.2 1006.0 1004.4 1008.1 1002.6 1004.9 996.6 DAY 3 9 13 30 1 16 9 13 12 13 13 16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1981 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1020.3 1020.7 1017.9 1018.0 1016.3 1014.2 1011.7 1012.8 1018.4 1022.7 1019.5 1020.6 1017.8 MAX. QFE PRESSURE IN HPA 1033.8 1032.2 1034.1 1028.2 1029.4 1022.2 1016.4 1017.4 1029.0 1031.3 1028.3 1031.0 1034.1 DAY 29 23 8 10 21 10 24 4 23 28 16 1 MIN. QFE PRESSURE IN HPA 1009.1 1006.1 998.8 1001.7 1001.6 1002.6 1006.4 1008.9 1006.4 1013.1 1005.1 1008.0 998.8 DAY 3 9 13 30 1 16 9 6 12 13 13 16 MEAN QNH PRESSURE IN HPA 1017.5 1017.9 1015.1 1015.1 1013.5 1011.4 1008.9 1010.0 1015.6 1019.9 1016.7 1017.8 1015.0 MAX. QNH PRESSURE IN HPA 1030.9 1029.4 1031.2 1025.4 1026.6 1019.4 1013.6 1014.6 1026.2 1028.5 1025.5 1028.2 1031.2 DAY 29 23 8 10 21 10 24 4 23 28 16 1 MIN. QNH PRESSURE IN HPA 1006.3 1003.3 996.0 998.9 998.8 999.8 1003.6 1006.1 1003.6 1010.3 1002.3 1005.2 996.0 DAY 3 9 13 30 1 16 9 6 12 13 13 16 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1019.7 1020.6 1017.6 1017.5 1016.3 1014.3 1011.6 1012.5 1018.2 1022.4 1018.5 1019.7 1017.4 MAX. QFE PRESSURE IN HPA 1033.5 1032.3 1034.1 1027.1 1029.9 1022.3 1016.4 1017.3 1029.0 1031.4 1027.5 1029.7 1034.1 DAY 29 23 8 10 21 9 24 3 23 28 15 1 MIN. QFE PRESSURE IN HPA 1009.3 1006.2 999.5 1000.6 1002.0 1003.9 1006.5 1008.0 1007.9 1012.8 1003.8 1006.2 999.5 DAY 3 9 13 30 1 15 9 6 17 15 13 18 MEAN QNH PRESSURE IN HPA 1016.9 1017.7 1014.8 1014.7 1013.5 1011.5 1008.8 1009.7 1015.4 1019.6 1015.7 1016.9 1014.6 MAX. QNH PRESSURE IN HPA 1030.7 1029.5 1031.2 1024.3 1027.1 1019.5 1013.6 1014.5 1026.2 1028.6 1024.7 1026.9 1031.2 DAY 29 23 8 10 21 9 24 3 23 28 15 1 MIN. QNH PRESSURE IN HPA 1006.5 1003.4 996.7 997.8 999.2 1001.1 1003.7 1005.2 1005.1 1010.0 1001.0 1003.4 996.7 DAY 3 9 13 30 1 15 9 6 17 15 13 18 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 1018.9 1019.5 1016.8 1016.7 1015.9 1013.8 1011.0 1011.7 1017.4 1021.7 1018.1 1019.1 1016.7 MAX. QFE PRESSURE IN HPA 1031.9 1030.7 1031.7 1026.1 1029.9 1021.9 1015.4 1016.8 1026.7 1030.8 1028.0 1029.2 1031.9 DAY 29 23 8 10 21 9 29 3 23 28 15 1 MIN. QFE PRESSURE IN HPA 1009.4 1007.6 998.9 999.4 1005.3 1003.0 1005.2 1007.1 1006.9 1012.8 1004.4 1005.4 998.9 DAY 3 9 13 30 1 15 10 6 17 15 5 18 MEAN QNH PRESSURE IN HPA 1016.1 1016.7 1014.0 1013.9 1013.1 1011.0 1008.2 1008.9 1014.6 1018.9 1015.3 1016.3 1013.9 MAX. QNH PRESSURE IN HPA 1029.1 1027.9 1028.9 1023.3 1027.1 1019.1 1012.6 1014.0 1023.9 1028.0 1025.2 1026.4 1029.1 DAY 29 23 8 10 21 9 29 3 23 28 15 1 MIN. QNH PRESSURE IN HPA 1006.6 1004.8 996.1 996.6 1002.5 1000.2 1002.4 1004.3 1004.1 1010.0 1001.6 1002.6 996.1 DAY 3 9 13 30 1 15 10 6 17 15 5 18 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1981 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1019.4 1019.8 1017.1 1016.7 1015.8 1013.3 1010.3 1011.4 1017.5 1021.8 1018.6 1019.5 1016.8 MAX. QFE PRESSURE IN HPA 1032.1 1031.3 1031.8 1026.2 1029.1 1021.9 1014.5 1016.8 1027.2 1030.8 1028.7 1029.6 1032.1 DAY 29 23 8 10 21 9 23 3 22 28 15 1 MIN. QFE PRESSURE IN HPA 1009.9 1010.6 1000.6 999.7 1006.4 1004.0 1004.3 1006.2 1007.7 1012.8 1007.5 1006.1 999.7 DAY 18 1 13 30 12 15 9 28 11 15 4 18 MEAN QNH PRESSURE IN HPA 1016.5 1017.0 1014.3 1013.9 1013.0 1010.5 1007.5 1008.6 1014.7 1018.9 1015.8 1016.7 1013.9 MAX. QNH PRESSURE IN HPA 1029.3 1028.5 1029.0 1023.4 1026.3 1019.1 1011.7 1014.0 1024.4 1028.0 1025.9 1026.8 1029.3 DAY 29 23 8 10 21 9 23 3 22 28 15 1 MIN. QNH PRESSURE IN HPA 1007.1 1007.8 997.8 996.9 1003.6 1001.2 1001.5 1003.4 1004.9 1010.0 1004.7 1003.3 996.9 DAY 18 1 13 30 12 15 9 28 11 15 4 18 MEAN QFF PRESSURE IN HPA 1016.8 1017.3 1014.5 1014.1 1013.3 1010.9 1007.9 1009.0 1015.1 1019.3 1016.1 1017.0 1014.3 MAX. QFF PRESSURE IN HPA 1029.5 1028.7 1029.2 1023.6 1026.6 1019.4 1012.1 1014.4 1024.7 1028.3 1026.1 1027.0 1029.5 DAY 29 23 8 10 21 9 24 3 22 28 15 1 MIN. QFF PRESSURE IN HPA 1007.4 1008.1 998.1 997.2 1004.0 1001.6 1001.9 1003.8 1005.3 1010.3 1005.0 1003.6 997.2 DAY 18 1 13 30 12 15 9 28 11 15 4 18 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 NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1982 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.0 6.7 8.9 15.1 19.0 23.2 26.6 24.7 24.1 17.2 11.4 7.9 16.1 MINIMUN AIR TEMPERATURE (C) 3.5 2.2 5.1 11.8 16.3 19.6 22.6 21.0 19.8 12.7 7.6 2.3 12.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 6 27 16 10 0 0 0 59 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 2 5 0 0 0 0 0 0 0 0 0 9 16 TEMPERATURE RECORDS LOWEST(C) -0.2 0.0 1.0 7.0 14.0 17.2 19.5 18.2 14.6 6.6 3.0 -1.0 -1.0 DAY 23 6 8 3 4 30 1 18 22 26 16 11 MAXIMUM AIR TEMPERATURE (C) 11.4 9.5 11.3 17.6 20.9 25.3 28.9 27.1 26.8 19.9 14.0 11.6 18.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 0 10 1 2 0 0 0 13 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.4 13.6 20.6 26.2 25.5 28.5 30.6 30.0 30.0 25.0 20.2 14.0 30.6 DAY 4 1 31 1 15 11 14 23 1 14 6 4 DIF. BETWEEN (MAX.-MIN.) (C) 7.9 7.3 6.2 5.8 4.6 5.7 6.3 6.1 7.0 7.2 6.4 9.3 6.7 MEAN DAILY TEMP. (MDT) (C) 7.4 5.8 8.2 14.7 18.6 22.4 25.8 24.1 23.3 16.3 10.8 7.0 15.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.1 1.1 44.1 147.6 95.0 71.6 0.0 0.0 0.0 359.6 HEATING DEG. DAYS(BASE 18 0C) 327.7 340.2 304.4 105.5 16.4 0.0 0.0 0.0 0.0 63.2 216.4 341.9 1715.7 DEWPOINT (MEAN C) 4.6 3.1 6.2 12.7 16.6 19.2 22.0 21.1 19.8 14.5 8.8 4.5 12.8 MIXING RATIO (G/KG) 5.33 4.77 5.93 9.27 11.84 13.97 16.77 15.85 14.56 10.48 7.03 5.31 10.09 VAPOUR PRESSURE (HPA) 8.66 7.77 9.63 14.91 19.03 22.28 26.51 25.16 23.27 16.89 11.45 8.66 16.18 SATURATION DEF. (HPA) 2.39 2.21 1.95 2.73 3.10 6.32 8.62 6.29 7.06 3.24 2.37 2.24 4.04 RELATIVE HUMIDITY (MEAN %) 80 79 84 86 86 79 76 81 78 85 85 81 82 RELATIVE HUMIDITY (MAX. %) 92 91 94 95 94 91 88 92 90 95 94 92 92 RELATIVE HUMIDITY (MIN. %) 68 68 77 78 79 71 68 73 68 75 74 68 72 RELATIVE HUMIDITY (MEAN% 03UTC) 90 88 93 94 92 91 87 91 90 94 93 89 91 RELATIVE HUMIDITY (MEAN% 09UTC) 72 71 79 82 82 74 70 76 69 78 76 73 75 RELATIVE HUMIDITY (MEAN% 15UTC) 86 84 85 87 87 78 76 82 81 91 89 86 84 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 189.6 190.0 114.6 90.5 47.7 64.4 3.4 57.7 64.4 188.6 155.4 51.8 1218.1 DAYS WITH PRECIPITATION >=10 7 6 4 2 1 3 0 1 1 7 9 2 43 DAYS WITH PRECIPITATION >= 5 8 8 8 2 4 5 0 4 4 10 10 3 66 DAYS WITH PRECIPITATION >= 1 9 9 8 7 6 9 1 9 8 16 15 5 102 DAYS WITH PRECIPITATION 12 10 10 8 9 10 2 10 8 16 16 6 117 GREATEST DAILY PRECIPITATION 35.0 48.0 29.0 64.0 24.1 15.0 3.0 21.0 35.0 57.0 29.0 26.0 64.0 DAY 15 5 25 3 28 27 7 9 14 6 24 6 DAY WITH THUNDER STORM 0 0 0 0 1 0 0 0 0 1 0 0 2 DAYS WITH SNOW OR SLEET 1 1 1 0 0 0 0 0 0 0 0 0 3 DAYS WITH DUST 0 0 1 0 0 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 270 90 90 90 90 90 360 315 315 90 270 90 90 PREVAILING WIND SPEED(KNOTS) 8.7 7.5 8.9 6.6 6.5 6.8 7.0 8.4 7.2 8.1 7.6 6.6 7.4 PREVAILING WIND PERCENT 15.5 17.9 29.0 22.0 14.2 17.3 20.0 11.0 8.7 13.5 25.3 12.3 13.5 CALMS PERCENT OF WIND 49.0 37.9 34.8 42.0 40.0 38.0 32.9 49.0 61.3 56.8 48.7 61.9 46.1 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 318 356 58 38 358 17 351 327 21 11 284 10 4 VECTOR WIND MAGNITUDE(KNOTS) 1.0 1.0 2.8 2.0 1.7 1.9 2.8 1.5 1.1 0.4 1.7 0.9 1.3 WIND STEADINESES (MEAN %) 25.0 20.0 52.8 54.1 41.5 44.2 60.9 44.1 44.0 11.4 45.9 34.6 33.3 WIND SPEED (MEAN KNOTS) 4.0 5.0 5.3 3.7 4.1 4.3 4.6 3.4 2.5 3.5 3.7 2.6 3.9 FASTEST WIND DIRECTION 330 120 330 270 330 330 350 330 90 270 330 360 330 FASTEST WIND SPEED (KNOTS) 19 17 27 21 16 17 19 27 19 19 19 17 27 DAY 9 11 2 6 2 4 18 22 17 9 8 2 DAYS WITH SKY CLEAR (0-2)/8 10 10 6 4 4 11 11 11 7 8 7 16 105 DAYS WITH P.CLOUDY (3-6)/8 6 9 6 11 10 8 12 5 15 7 6 8 103 DAYS WITH CLOUDY (7-8)/8 15 9 19 15 17 11 8 15 8 16 17 7 157 DAYS WITH VISIBILITY =< 2 KM 3 0 6 6 1 0 0 0 0 2 0 3 21 DURATION OF SUNSHINE HOURS 122.8 136.2 107.5 122.9 105.8 177.0 195.2 135.8 110.1 106.9 83.7 156.2 1560.1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1982 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1021.9 1021.7 1020.4 1016.4 1019.7 1014.5 1009.8 1012.7 1018.0 1020.6 1025.5 1023.3 1018.7 MAX. QFE PRESSURE IN HPA 1036.9 1036.8 1030.2 1030.0 1032.5 1021.0 1018.6 1019.9 1029.5 1036.4 1033.7 1033.4 1036.9 DAY-HOUR 21- 6 11- 6 5- 6 4- 9 10- 6 6-15 8- 6 15- 6 19- 3 25- 6 30- 6 10- 6 MIN. QFE PRESSURE IN HPA 1004.0 1005.3 1005.5 1002.2 1007.6 1006.8 1003.1 1006.2 1011.9 1007.7 1009.2 1010.2 1002.2 DAY-HOUR 8-15 4- 3 2- 3 18-15 15- 3 11-15 31-15 4- 3 10-15 18- 3 6- 9 31-15 MEAN QNH PRESSURE IN HPA 1019.0 1018.9 1017.6 1013.6 1016.9 1011.7 1007.0 1009.9 1015.2 1017.7 1022.7 1020.5 1015.9 MAX. QNH PRESSURE IN HPA 1034.0 1033.9 1027.4 1027.2 1029.7 1018.2 1015.8 1017.1 1026.7 1033.5 1030.9 1030.6 1034.0 DAY-HOUR 21- 6 11- 6 5- 6 4- 9 10- 6 6-15 8- 6 15- 6 19- 3 25- 6 30- 6 10- 6 MIN. QNH PRESSURE IN HPA 1001.2 1002.5 1002.7 999.4 1004.8 1004.0 1000.3 1003.4 1009.1 1004.9 1006.4 1007.4 999.4 DAY-HOUR 8-15 4- 3 2- 3 18-15 15- 3 11-15 31-15 4- 3 10-15 18- 3 6- 9 31-15 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 1021.8 1021.7 1020.3 1016.3 1019.5 1014.7 1010.1 1012.8 1018.4 1020.2 1025.5 1023.5 1018.7 MAX. QFE PRESSURE IN HPA 1035.5 1036.0 1029.1 1029.6 1030.6 1020.1 1018.2 1019.4 1029.5 1035.9 1032.8 1033.2 1036.0 DAY 21 11 5 4 11 20 8 15 19 25 30 10 MIN. QFE PRESSURE IN HPA 1006.0 1005.3 1005.5 1003.0 1007.6 1006.9 1005.1 1006.2 1014.4 1007.7 1011.0 1013.9 1003.0 DAY 9 4 2 19 15 1 31 4 23 18 6 31 MEAN QNH PRESSURE IN HPA 1019.0 1018.8 1017.5 1013.5 1016.6 1011.9 1007.3 1010.0 1015.6 1017.4 1022.7 1020.6 1015.9 MAX. QNH PRESSURE IN HPA 1032.6 1033.1 1026.3 1026.8 1027.8 1017.3 1015.4 1016.6 1026.7 1033.0 1030.0 1030.4 1033.1 DAY 21 11 5 4 11 20 8 15 19 25 30 10 MIN. QNH PRESSURE IN HPA 1003.2 1002.5 1002.7 1000.2 1004.8 1004.1 1002.3 1003.4 1011.6 1004.9 1008.2 1011.1 1000.2 DAY 9 4 2 19 15 1 31 4 23 18 6 31 MEAN QFF PRESSURE IN HPA 1019.5 1018.9 1017.7 1013.8 1017.0 1012.3 1007.7 1010.4 1015.9 1017.7 1023.1 1020.8 1016.3 MAX. QFF PRESSURE IN HPA 1032.8 1033.4 1026.5 1027.0 1028.1 1017.6 1015.8 1016.9 1027.0 1033.3 1030.2 1030.5 1033.4 DAY 21 11 5 4 11 20 8 15 19 25 30 10 MIN. QFF PRESSURE IN HPA 1003.5 1002.8 1003.0 1000.5 1005.2 1004.5 1002.7 1003.8 1012.0 1005.2 1008.5 1011.3 1000.5 DAY 9 4 2 19 15 1 31 4 23 18 6 31 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1982 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.8 1022.3 1021.3 1017.1 1020.3 1015.0 1010.5 1013.4 1018.7 1021.0 1026.3 1024.2 1019.4 MAX. QFE PRESSURE IN HPA 1036.9 1036.8 1030.2 1029.9 1032.5 1020.2 1018.6 1019.9 1026.2 1036.4 1033.7 1033.4 1036.9 DAY 21 11 5 4 10 6 8 15 20 25 30 10 MIN. QFE PRESSURE IN HPA 1009.0 1006.5 1006.2 1005.1 1009.3 1008.3 1005.3 1006.9 1015.0 1007.8 1009.8 1014.0 1005.1 DAY 8 4 2 19 15 1 31 1 13 18 6 31 MEAN QNH PRESSURE IN HPA 1020.0 1019.5 1018.4 1014.2 1017.5 1012.2 1007.7 1010.6 1015.9 1018.2 1023.4 1021.4 1016.6 MAX. QNH PRESSURE IN HPA 1034.0 1033.9 1027.4 1027.1 1029.7 1017.4 1015.8 1017.1 1023.4 1033.5 1030.9 1030.6 1034.0 DAY 21 11 5 4 10 6 8 15 20 25 30 10 MIN. QNH PRESSURE IN HPA 1006.2 1003.7 1003.4 1002.3 1006.5 1005.5 1002.5 1004.1 1012.2 1005.0 1007.0 1011.2 1002.3 DAY 8 4 2 19 15 1 31 1 13 18 6 31 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 1022.0 1021.9 1020.7 1016.8 1020.2 1014.8 1010.2 1013.0 1018.3 1020.7 1025.5 1023.4 1018.9 MAX. QFE PRESSURE IN HPA 1035.8 1036.3 1029.5 1030.0 1032.5 1020.6 1017.5 1019.4 1025.7 1034.8 1032.1 1032.1 1036.3 DAY 21 11 5 4 10 6 20 15 20 25 30 5 MIN. QFE PRESSURE IN HPA 1006.5 1005.9 1006.5 1005.2 1010.1 1009.2 1004.1 1007.0 1013.8 1007.7 1009.2 1012.0 1004.1 DAY 8 4 2 27 14 1 31 1 23 18 6 31 MEAN QNH PRESSURE IN HPA 1019.1 1019.0 1017.9 1014.0 1017.3 1012.0 1007.4 1010.2 1015.5 1017.9 1022.6 1020.6 1016.1 MAX. QNH PRESSURE IN HPA 1032.9 1033.4 1026.7 1027.2 1029.7 1017.8 1014.7 1016.6 1022.9 1031.9 1029.3 1029.3 1033.4 DAY 21 11 5 4 10 6 20 15 20 25 30 5 MIN. QNH PRESSURE IN HPA 1003.7 1003.1 1003.7 1002.4 1007.3 1006.4 1001.3 1004.2 1011.0 1004.9 1006.4 1009.2 1001.3 DAY 8 4 2 27 14 1 31 1 23 18 6 31 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 1021.1 1021.1 1019.9 1016.1 1019.4 1014.2 1009.3 1012.3 1017.6 1020.2 1025.0 1022.6 1018.2 MAX. QFE PRESSURE IN HPA 1034.5 1034.8 1028.0 1027.9 1031.8 1020.8 1016.2 1019.3 1025.4 1034.3 1031.5 1031.1 1034.8 DAY 21 11 4 4 10 6 8 15 20 24 11 5 MIN. QFE PRESSURE IN HPA 1004.5 1005.9 1008.4 1003.2 1008.1 1008.2 1003.4 1007.0 1012.5 1008.1 1009.2 1010.6 1003.2 DAY 8 4 2 18 14 11 31 4 13 18 6 31 MEAN QNH PRESSURE IN HPA 1018.3 1018.3 1017.1 1013.3 1016.5 1011.4 1006.5 1009.5 1014.8 1017.4 1022.2 1019.8 1015.4 MAX. QNH PRESSURE IN HPA 1031.6 1031.9 1025.2 1025.1 1029.0 1018.0 1013.4 1016.5 1022.6 1031.4 1028.7 1028.3 1031.9 DAY 21 11 4 4 10 6 8 15 20 24 11 5 MIN. QNH PRESSURE IN HPA 1001.7 1003.1 1005.6 1000.4 1005.3 1005.4 1000.6 1004.2 1009.7 1005.3 1006.4 1007.8 1000.4 DAY 8 4 2 18 14 11 31 4 13 18 6 31 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1982 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1021.7 1021.7 1020.0 1015.7 1019.4 1013.9 1008.8 1012.2 1017.3 1020.8 1025.5 1023.0 1018.3 MAX. QFE PRESSURE IN HPA 1035.8 1034.2 1029.0 1027.2 1031.1 1021.0 1016.1 1018.9 1024.9 1035.2 1032.0 1031.8 1035.8 DAY 20 11 5 3 9 6 7 15 20 24 10 5 MIN. QFE PRESSURE IN HPA 1004.0 1007.9 1008.8 1002.2 1008.3 1006.8 1003.1 1007.1 1011.9 1010.2 1009.8 1010.2 1002.2 DAY 8 4 2 18 14 11 31 3 10 18 6 31 MEAN QNH PRESSURE IN HPA 1018.9 1018.9 1017.1 1012.9 1016.6 1011.1 1006.0 1009.4 1014.5 1018.0 1022.6 1020.2 1015.5 MAX. QNH PRESSURE IN HPA 1032.9 1031.3 1026.2 1024.4 1028.3 1018.2 1013.3 1016.1 1022.1 1032.3 1029.2 1029.0 1032.9 DAY 20 11 5 3 9 6 7 15 20 24 10 5 MIN. QNH PRESSURE IN HPA 1001.2 1005.1 1006.0 999.4 1005.5 1004.0 1000.3 1004.3 1009.1 1007.4 1007.0 1007.4 999.4 DAY 8 4 2 18 14 11 31 3 10 18 6 31 MEAN QFF PRESSURE IN HPA 1019.4 1019.1 1017.4 1013.2 1016.9 1011.5 1006.4 1009.8 1014.8 1018.4 1023.0 1020.4 1015.9 MAX. QFF PRESSURE IN HPA 1033.1 1031.5 1026.4 1024.6 1028.6 1018.5 1013.7 1016.5 1022.4 1032.6 1029.4 1029.2 1033.1 DAY 20 11 5 3 9 6 7 15 20 24 10 5 MIN. QFF PRESSURE IN HPA 1001.5 1005.4 1006.3 999.8 1005.9 1004.4 1000.7 1004.7 1009.5 1007.7 1007.3 1007.6 999.8 DAY 8 4 2 18 14 11 31 3 10 18 6 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 NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1983 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.9 8.7 9.8 15.3 21.1 23.8 27.5 25.7 22.3 18.3 15.8 10.4 17.1 MINIMUN AIR TEMPERATURE (C) 2.3 3.5 5.5 10.5 17.4 20.2 22.8 22.0 18.8 13.2 10.6 5.4 12.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 13 30 25 4 0 0 0 72 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 8 5 0 0 0 0 0 0 0 0 0 1 14 TEMPERATURE RECORDS LOWEST(C) -2.0 0.0 0.4 5.6 13.0 17.4 18.4 17.0 14.0 9.0 4.0 -1.0 -2.0 DAY 27 1 8 2 1 1 1 28 16 22 27 25 MAXIMUM AIR TEMPERATURE (C) 10.4 11.9 12.4 18.0 23.4 26.1 30.0 28.3 24.7 21.1 18.9 13.9 19.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 0 15 13 0 0 0 0 28 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.0 19.0 18.0 28.0 27.8 29.4 33.0 33.0 27.5 25.0 26.4 21.0 33.0 DAY 18 19 12 18 4 18 15 16 9 1 13 2 DIF. BETWEEN (MAX.-MIN.) (C) 8.1 8.4 6.9 7.5 6.0 5.9 7.2 6.3 5.9 7.9 8.3 8.5 7.2 MEAN DAILY TEMP. (MDT) (C) 6.4 7.7 8.9 14.3 20.4 23.1 26.4 25.2 21.7 17.1 14.7 9.7 16.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.5 15.5 64.5 166.9 130.5 36.2 1.0 0.0 0.0 415.2 HEATING DEG. DAYS(BASE 18 0C) 361.0 288.6 280.6 116.2 1.5 0.0 0.0 0.0 0.0 39.5 101.1 258.6 1447.2 DEWPOINT (MEAN C) 3.6 5.5 6.7 11.4 17.3 20.6 23.4 22.6 20.1 15.6 13.5 8.0 14.0 MIXING RATIO (G/KG) 4.99 5.67 6.11 8.46 12.48 15.32 18.31 17.48 14.81 11.14 9.72 6.81 10.94 VAPOUR PRESSURE (HPA) 8.12 9.20 9.93 13.65 19.95 24.37 28.84 27.64 23.63 17.95 15.70 11.08 17.51 SATURATION DEF. (HPA) 2.14 2.23 2.42 4.06 5.36 5.44 8.24 5.95 3.55 3.43 2.69 1.93 3.95 RELATIVE HUMIDITY (MEAN %) 80 82 83 79 80 83 79 84 88 85 87 86 83 RELATIVE HUMIDITY (MAX. %) 91 92 93 91 89 93 90 96 96 96 97 95 93 RELATIVE HUMIDITY (MIN. %) 69 72 74 70 72 75 71 74 80 76 76 76 74 RELATIVE HUMIDITY (MEAN% 03UTC) 87 90 92 88 89 93 89 94 96 94 93 92 91 RELATIVE HUMIDITY (MEAN% 09UTC) 74 77 80 76 75 78 75 77 82 78 81 79 78 RELATIVE HUMIDITY (MEAN% 15UTC) 85 84 82 80 80 83 79 85 90 89 91 91 85 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 112.5 15.6 80.9 31.4 37.8 76.4 8.4 71.8 170.8 204.0 94.3 189.1 1093.0 DAYS WITH PRECIPITATION >=10 4 0 4 1 1 3 0 2 3 6 3 6 33 DAYS WITH PRECIPITATION >= 5 7 2 7 2 4 6 1 7 4 6 6 6 58 DAYS WITH PRECIPITATION >= 1 11 3 9 5 5 9 2 13 8 8 8 8 89 DAYS WITH PRECIPITATION 11 5 9 6 6 10 5 16 12 8 9 10 107 GREATEST DAILY PRECIPITATION 49.0 7.0 21.0 14.0 14.0 21.0 5.0 15.0 103.0 99.0 23.0 56.0 103.0 DAY 25 8 2 25 30 27 24 17 14 12 26 14 DAY WITH THUNDER STORM 0 1 0 1 1 1 0 0 1 0 0 0 5 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 1 0 1 WIND DIRECTION (PREVAILING) 270 90 90 90 90 360 45 270 270 90 135 90 90 PREVAILING WIND SPEED(KNOTS) 7.5 6.2 6.2 5.9 6.9 7.9 5.9 6.6 7.0 5.7 7.4 5.9 6.3 PREVAILING WIND PERCENT 14.2 25.0 16.8 19.3 20.0 18.0 20.6 11.6 10.7 11.6 6.7 10.3 11.8 CALMS PERCENT OF WIND 57.4 55.7 42.6 36.7 32.3 30.7 34.8 54.8 62.0 61.9 70.7 71.0 50.8 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 215 74 356 38 29 353 14 307 327 23 357 15 9 VECTOR WIND MAGNITUDE(KNOTS) 0.2 1.6 1.3 1.9 2.5 2.7 2.1 1.7 1.3 0.7 0.5 0.6 1.2 WIND STEADINESES (MEAN %) 6.5 55.2 34.2 51.4 54.3 56.3 50.0 54.8 52.0 31.8 21.7 30.0 36.4 WIND SPEED (MEAN KNOTS) 3.1 2.9 3.8 3.7 4.6 4.8 4.2 3.1 2.5 2.2 2.3 2.0 3.3 FASTEST WIND DIRECTION 270 270 90 240 90 330 60 270 330 70 120 330 270 FASTEST WIND SPEED (KNOTS) 19 29 14 16 17 16 17 17 16 17 17 19 29 DAY 6 21 2 18 19 8 2 30 10 9 26 12 DAYS WITH SKY CLEAR (0-2)/8 15 15 11 15 7 9 18 8 4 11 8 12 133 DAYS WITH P.CLOUDY (3-6)/8 7 7 6 5 12 8 4 1 6 12 11 6 85 DAYS WITH CLOUDY (7-8)/8 9 6 14 10 12 13 9 22 20 8 11 13 147 DAYS WITH VISIBILITY =< 2 KM 2 1 2 1 0 0 0 1 1 2 1 1 12 DURATION OF SUNSHINE HOURS 154.1 161.4 154.6 175.3 159.6 144.5 229.7 95.5 72.8 155.1 123.6 121.8 1748.0 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1983 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1022.0 1019.7 1021.3 1017.8 1014.4 1014.5 1009.2 1011.5 1016.8 1021.2 1021.4 1024.5 1017.8 MAX. QFE PRESSURE IN HPA 1038.4 1029.8 1032.5 1026.8 1023.2 1022.6 1020.0 1020.8 1025.3 1030.1 1045.0 1036.1 1045.0 DAY-HOUR 8- 6 9- 6 14-15 21- 6 16- 6 1- 3 1- 6 17- 6 27- 9 28- 6 26- 3 15- 6 MIN. QFE PRESSURE IN HPA 1005.7 1007.4 1008.4 1006.8 1002.4 1006.2 1001.2 1003.3 1008.9 1010.2 1006.6 1010.4 1001.2 DAY-HOUR 24- 3 18- 3 4-15 18- 3 4-15 7-12 27-12 11-15 25-15 4-12 13- 3 30- 3 MEAN QNH PRESSURE IN HPA 1019.1 1016.9 1018.5 1015.0 1011.6 1011.6 1006.4 1008.7 1013.9 1018.4 1018.5 1021.6 1015.0 MAX. QNH PRESSURE IN HPA 1035.5 1027.0 1029.7 1024.0 1020.4 1019.8 1017.2 1018.0 1022.5 1027.3 1042.1 1033.2 1042.1 DAY-HOUR 8- 6 9- 6 14-15 21- 6 16- 6 1- 3 1- 6 17- 6 27- 9 28- 6 26- 3 15- 6 MIN. QNH PRESSURE IN HPA 1002.9 1004.6 1005.6 1004.0 999.6 1003.4 998.4 1000.5 1006.1 1007.4 1003.8 1007.6 998.4 DAY-HOUR 24- 3 18- 3 4-15 18- 3 4-15 7-12 27-12 11-15 25-15 4-12 13- 3 30- 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 1021.8 1019.6 1021.5 1017.7 1014.4 1014.5 1009.6 1011.8 1016.9 1021.5 1021.6 1024.5 1017.9 MAX. QFE PRESSURE IN HPA 1037.8 1029.4 1031.7 1026.0 1022.5 1022.6 1019.5 1020.3 1023.2 1029.1 1045.0 1035.6 1045.0 DAY 8 23 15 21 16 1 1 17 28 28 26 15 MIN. QFE PRESSURE IN HPA 1005.7 1007.4 1009.5 1006.8 1005.8 1007.5 1002.0 1004.6 1009.5 1011.0 1006.6 1010.4 1002.0 DAY 24 18 22 18 4 7 27 12 8 11 13 30 MEAN QNH PRESSURE IN HPA 1018.9 1016.8 1018.7 1014.9 1011.6 1011.7 1006.7 1009.0 1014.1 1018.6 1018.8 1021.7 1015.1 MAX. QNH PRESSURE IN HPA 1034.9 1026.6 1028.9 1023.2 1019.7 1019.8 1016.7 1017.5 1020.4 1026.3 1042.1 1032.7 1042.1 DAY 8 23 15 21 16 1 1 17 28 28 26 15 MIN. QNH PRESSURE IN HPA 1002.9 1004.6 1006.7 1004.0 1003.0 1004.7 999.2 1001.8 1006.7 1008.2 1003.8 1007.6 999.2 DAY 24 18 22 18 4 7 27 12 8 11 13 30 MEAN QFF PRESSURE IN HPA 1019.1 1017.0 1018.9 1015.2 1011.9 1012.0 1007.2 1009.4 1014.5 1019.0 1019.1 1021.9 1015.4 MAX. QFF PRESSURE IN HPA 1035.1 1026.8 1029.1 1023.5 1020.0 1020.1 1017.1 1017.9 1020.7 1026.6 1042.4 1033.0 1042.4 DAY 8 23 15 21 16 1 1 17 28 28 26 15 MIN. QFF PRESSURE IN HPA 1003.2 1004.8 1007.0 1004.4 1003.4 1005.1 999.6 1002.2 1007.1 1008.5 1004.2 1007.8 999.6 DAY 24 18 22 18 4 7 27 12 8 11 13 30 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1983 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.8 1020.3 1022.2 1018.3 1015.0 1015.0 1009.8 1012.2 1017.6 1022.1 1022.4 1025.2 1018.6 MAX. QFE PRESSURE IN HPA 1038.4 1029.8 1032.4 1026.8 1023.2 1022.0 1020.0 1020.8 1024.9 1030.1 1040.7 1036.1 1040.7 DAY 8 9 14 21 16 1 1 17 27 28 26 15 MIN. QFE PRESSURE IN HPA 1007.4 1009.1 1010.8 1009.3 1005.7 1008.9 1001.8 1005.1 1010.6 1011.2 1011.4 1014.0 1001.8 DAY 24 18 22 18 4 7 27 12 8 11 12 30 MEAN QNH PRESSURE IN HPA 1020.0 1017.5 1019.3 1015.5 1012.2 1012.2 1007.0 1009.4 1014.8 1019.3 1019.5 1022.4 1015.8 MAX. QNH PRESSURE IN HPA 1035.5 1027.0 1029.6 1024.0 1020.4 1019.2 1017.2 1018.0 1022.1 1027.3 1037.8 1033.2 1037.8 DAY 8 9 14 21 16 1 1 17 27 28 26 15 MIN. QNH PRESSURE IN HPA 1004.6 1006.3 1008.0 1006.5 1002.9 1006.1 999.0 1002.3 1007.8 1008.4 1008.6 1011.2 999.0 DAY 24 18 22 18 4 7 27 12 8 11 12 30 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 1022.1 1020.0 1021.6 1018.1 1014.7 1014.8 1009.5 1011.9 1017.1 1021.4 1021.5 1024.4 1018.1 MAX. QFE PRESSURE IN HPA 1037.5 1029.2 1032.3 1026.3 1022.3 1021.3 1019.2 1020.7 1025.3 1029.1 1038.5 1034.2 1038.5 DAY 7 9 14 21 15 1 1 17 27 7 26 3 MIN. QFE PRESSURE IN HPA 1007.2 1008.6 1010.8 1009.2 1004.7 1007.7 1001.8 1005.3 1010.2 1011.2 1008.8 1011.2 1001.8 DAY 24 19 22 17 4 7 27 11 8 11 12 11 MEAN QNH PRESSURE IN HPA 1019.2 1017.2 1018.8 1015.2 1011.9 1012.0 1006.7 1009.1 1014.3 1018.6 1018.6 1021.5 1015.3 MAX. QNH PRESSURE IN HPA 1034.6 1026.4 1029.5 1023.5 1019.5 1018.5 1016.4 1017.9 1022.5 1026.3 1035.6 1031.3 1035.6 DAY 7 9 14 21 15 1 1 17 27 7 26 3 MIN. QNH PRESSURE IN HPA 1004.4 1005.8 1008.0 1006.4 1001.9 1004.9 999.0 1002.5 1007.4 1008.4 1006.0 1008.4 999.0 DAY 24 19 22 17 4 7 27 11 8 11 12 11 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 1021.4 1019.2 1020.6 1017.5 1014.2 1014.2 1008.9 1011.1 1016.2 1020.4 1020.6 1024.0 1017.3 MAX. QFE PRESSURE IN HPA 1037.5 1029.0 1031.7 1025.8 1022.3 1020.3 1018.3 1020.5 1024.7 1028.2 1035.6 1034.7 1037.5 DAY 7 8 14 21 15 5 1 17 27 28 26 3 MIN. QFE PRESSURE IN HPA 1006.9 1007.4 1009.7 1008.5 1004.2 1006.2 1001.2 1004.4 1009.7 1010.2 1007.8 1011.2 1001.2 DAY 24 19 5 17 4 7 27 11 8 4 12 11 MEAN QNH PRESSURE IN HPA 1018.5 1016.3 1017.8 1014.7 1011.4 1011.4 1006.1 1008.3 1013.3 1017.6 1017.8 1021.1 1014.5 MAX. QNH PRESSURE IN HPA 1034.6 1026.2 1028.9 1023.0 1019.5 1017.5 1015.5 1017.7 1021.9 1025.4 1032.7 1031.8 1034.6 DAY 7 8 14 21 15 5 1 17 27 28 26 3 MIN. QNH PRESSURE IN HPA 1004.1 1004.6 1006.9 1005.7 1001.4 1003.4 998.4 1001.6 1006.9 1007.4 1005.0 1008.4 998.4 DAY 24 19 5 17 4 7 27 11 8 4 12 11 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1983 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1021.9 1019.5 1020.6 1017.5 1013.9 1013.9 1008.4 1010.8 1016.1 1020.5 1020.9 1024.4 1017.4 MAX. QFE PRESSURE IN HPA 1037.8 1029.0 1032.5 1025.3 1022.8 1018.7 1017.9 1019.1 1023.7 1028.3 1036.9 1035.4 1037.8 DAY 7 8 14 21 18 5 1 17 27 28 25 3 MIN. QFE PRESSURE IN HPA 1007.9 1008.1 1008.4 1007.9 1002.4 1006.4 1001.4 1003.3 1008.9 1010.4 1007.3 1010.5 1001.4 DAY 24 19 4 17 4 7 27 11 25 4 12 11 MEAN QNH PRESSURE IN HPA 1019.1 1016.7 1017.8 1014.6 1011.1 1011.1 1005.6 1008.0 1013.3 1017.7 1018.1 1021.6 1014.6 MAX. QNH PRESSURE IN HPA 1034.9 1026.2 1029.7 1022.5 1020.0 1015.9 1015.1 1016.3 1020.9 1025.5 1034.0 1032.5 1034.9 DAY 7 8 14 21 18 5 1 17 27 28 25 3 MIN. QNH PRESSURE IN HPA 1005.1 1005.3 1005.6 1005.1 999.6 1003.6 998.6 1000.5 1006.1 1007.6 1004.5 1007.7 998.6 DAY 24 19 4 17 4 7 27 11 25 4 12 11 MEAN QFF PRESSURE IN HPA 1019.3 1016.9 1018.1 1014.9 1011.5 1011.4 1006.0 1008.4 1013.7 1018.0 1018.4 1021.8 1014.9 MAX. QFF PRESSURE IN HPA 1035.1 1026.4 1029.9 1022.8 1020.3 1016.3 1015.5 1016.7 1021.2 1025.8 1034.3 1032.8 1035.1 DAY 7 8 14 21 18 5 1 17 27 28 25 3 MIN. QFF PRESSURE IN HPA 1005.3 1005.6 1005.8 1005.4 1000.0 1004.0 999.0 1000.9 1006.5 1008.0 1004.8 1008.0 999.0 DAY 24 19 4 17 4 7 27 11 25 4 12 11 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 NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1984 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.6 5.3 9.0 14.2 18.1 22.5 27.2 25.0 23.4 19.4 15.0 7.4 16.3 MINIMUN AIR TEMPERATURE (C) 3.6 2.2 6.8 10.9 14.2 18.3 21.8 21.3 18.7 13.7 11.3 3.5 12.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 3 24 19 2 0 0 0 49 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 1 8 0 0 0 0 0 0 0 0 0 2 11 TEMPERATURE RECORDS LOWEST(C) 0.0 -1.0 2.0 5.0 8.0 15.0 18.0 18.0 14.0 9.0 6.0 0.0 -1.0 DAY 1 6 17 5 2 16 7 30 28 20 30 12 MAXIMUM AIR TEMPERATURE (C) 12.1 7.8 10.5 16.7 20.7 25.4 30.2 27.6 26.3 22.6 17.8 10.2 19.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 1 0 21 5 0 0 0 0 27 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 15.0 11.0 13.0 24.0 31.0 29.0 33.0 30.5 28.0 27.0 22.0 16.0 33.0 DAY 4 13 20 22 26 1 23 24 3 1 25 8 DIF. BETWEEN (MAX.-MIN.) (C) 8.5 5.6 3.7 5.8 6.5 7.1 8.4 6.3 7.6 8.9 6.5 6.7 6.8 MEAN DAILY TEMP. (MDT) (C) 7.9 5.0 8.7 13.8 17.5 21.8 26.0 24.5 22.5 18.1 14.5 6.8 15.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 11.0 36.1 155.0 108.5 45.9 5.0 0.0 0.0 361.5 HEATING DEG. DAYS(BASE 18 0C) 314.1 376.5 289.3 128.4 54.6 1.0 0.0 0.0 0.0 35.0 103.5 345.6 1648.1 DEWPOINT (MEAN C) 6.9 3.4 7.9 12.6 14.4 19.1 23.1 22.0 20.6 15.6 13.2 5.1 13.6 MIXING RATIO (G/KG) 6.20 4.79 6.61 9.12 10.33 13.97 17.99 16.78 15.29 11.27 9.49 5.41 10.60 VAPOUR PRESSURE (HPA) 10.09 7.86 10.73 14.66 16.58 22.26 28.37 26.53 24.38 18.14 15.33 8.87 16.98 SATURATION DEF. (HPA) 1.37 1.18 0.78 1.72 4.77 5.41 8.25 5.54 4.78 5.07 2.02 1.60 3.54 RELATIVE HUMIDITY (MEAN %) 89 88 93 90 80 82 79 84 85 80 89 86 85 RELATIVE HUMIDITY (MAX. %) 96 96 97 96 90 92 89 93 94 92 96 95 94 RELATIVE HUMIDITY (MIN. %) 81 80 89 84 72 74 70 76 76 69 81 77 77 RELATIVE HUMIDITY (MEAN% 03UTC) 95 94 96 96 89 91 88 92 93 91 95 94 93 RELATIVE HUMIDITY (MEAN% 09UTC) 83 82 91 86 74 78 74 78 78 72 82 79 80 RELATIVE HUMIDITY (MEAN% 15UTC) 93 90 95 92 83 83 81 85 87 83 93 89 88 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 73.2 120.7 49.2 13.2 48.4 55.5 4.0 154.0 31.0 210.0 220.3 173.6 1153.1 DAYS WITH PRECIPITATION >=10 3 5 1 0 2 3 0 4 1 6 6 7 38 DAYS WITH PRECIPITATION >= 5 5 8 4 0 3 3 0 5 3 6 7 11 55 DAYS WITH PRECIPITATION >= 1 6 13 10 6 7 3 3 10 4 6 14 15 97 DAYS WITH PRECIPITATION 7 15 14 7 9 6 3 12 5 6 15 15 114 GREATEST DAILY PRECIPITATION 20.0 24.0 13.0 3.0 17.0 30.0 2.0 59.0 14.0 74.0 69.0 54.0 74.0 DAY 10 14 16 12 1 16 29 11 4 7 14 15 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 0 1 0 0 1 DAYS WITH SNOW OR SLEET 0 4 0 0 0 0 0 0 0 0 0 0 4 DAYS WITH DUST 0 0 0 0 1 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 270 270 90 45 45 90 315 270 315 90 270 270 315 PREVAILING WIND SPEED(KNOTS) 11.0 6.8 5.7 5.2 5.5 6.1 9.1 7.0 7.2 7.0 7.4 7.7 7.8 PREVAILING WIND PERCENT 9.0 15.2 14.8 14.0 14.2 14.0 12.3 14.8 6.7 9.0 10.7 16.8 8.9 CALMS PERCENT OF WIND 71.0 64.8 56.8 47.3 50.3 52.7 56.8 57.4 74.7 61.3 61.3 69.7 60.3 NO. OF WIND OBSERVATION 155 145 155 150 155 150 155 155 150 155 150 155 1830 VECTOR WIND DIRECTION (MEAN) 307 302 26 17 5 22 355 307 349 332 322 284 340 VECTOR WIND MAGNITUDE(KNOTS) 0.7 1.0 1.0 1.7 1.2 1.4 1.9 2.0 0.8 0.3 1.1 1.7 1.0 WIND STEADINESES (MEAN %) 31.8 45.5 37.0 48.6 37.5 45.2 63.3 69.0 50.0 11.1 37.9 73.9 37.0 WIND SPEED (MEAN KNOTS) 2.2 2.2 2.7 3.5 3.2 3.1 3.0 2.9 1.6 2.7 2.9 2.3 2.7 FASTEST WIND DIRECTION 360 270 80 320 90 330 350 270 310 260 90 270 90 FASTEST WIND SPEED (KNOTS) 17 10 12 14 17 12 17 16 12 16 19 19 19 DAY 22 5 17 21 24 5 26 31 12 19 30 3 DAYS WITH SKY CLEAR (0-2)/8 11 4 1 4 8 13 17 9 13 16 2 7 105 DAYS WITH P.CLOUDY (3-6)/8 8 4 3 11 9 6 9 5 7 10 12 7 91 DAYS WITH CLOUDY (7-8)/8 12 21 27 15 14 11 5 17 10 5 16 17 170 DAYS WITH VISIBILITY =< 2 KM 0 2 2 3 1 1 0 1 0 0 1 0 11 DURATION OF SUNSHINE HOURS 133.2 61.4 36.4 118.8 173.9 110.2 231.1 144.6 156.4 187.8 78.2 79.9 1511.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1984 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1022.7 1030.3 1020.7 1015.0 1016.1 1013.9 1009.8 1010.5 1016.8 1021.4 1020.9 1028.6 1018.9 MAX. QFE PRESSURE IN HPA 1031.0 1042.5 1030.4 1026.4 1024.0 1022.3 1018.8 1018.6 1023.5 1032.3 1036.0 1039.3 1042.5 DAY-HOUR 4- 6 18- 6 4- 9 4- 6 12- 9 15-15 3- 9 30- 9 30- 9 21-15 30-15 18- 6 MIN. QFE PRESSURE IN HPA 1011.1 1010.0 1007.2 1002.5 1003.8 1004.1 1004.6 1003.7 1010.1 1004.7 1007.5 1010.2 1002.5 DAY-HOUR 8- 9 8-12 25- 3 9-15 27-15 20-15 29-15 15- 3 8-12 17-12 12- 3 13-15 MEAN QNH PRESSURE IN HPA 1019.8 1027.5 1017.8 1012.2 1013.2 1011.1 1007.0 1007.7 1014.0 1018.6 1018.1 1025.7 1016.1 MAX. QNH PRESSURE IN HPA 1028.2 1039.6 1027.6 1023.6 1021.2 1019.5 1016.0 1015.8 1020.7 1029.5 1033.1 1036.4 1039.6 DAY-HOUR 4- 6 18- 6 4- 9 4- 6 12- 9 15-15 3- 9 30- 9 30- 9 21-15 30-15 18- 6 MIN. QNH PRESSURE IN HPA 1008.3 1007.2 1004.4 999.7 1001.0 1001.3 1001.8 1000.9 1007.3 1001.9 1004.7 1007.4 999.7 DAY-HOUR 8- 9 8-12 25- 3 9-15 27-15 20-15 29-15 15- 3 8-12 17-12 12- 3 13-15 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 1022.8 1030.5 1020.6 1015.1 1015.6 1014.1 1010.2 1010.8 1016.9 1021.5 1020.8 1028.9 1019.0 MAX. QFE PRESSURE IN HPA 1030.6 1041.5 1029.9 1026.3 1023.0 1021.4 1017.2 1017.9 1023.4 1030.9 1034.0 1038.3 1041.5 DAY 4 18 5 4 13 16 3 30 30 8 30 19 MIN. QFE PRESSURE IN HPA 1012.2 1011.5 1007.2 1006.7 1005.1 1006.9 1006.9 1003.7 1011.1 1006.7 1007.5 1010.9 1003.7 DAY 8 8 25 17 28 10 16 15 8 18 12 14 MEAN QNH PRESSURE IN HPA 1020.0 1027.7 1017.8 1012.3 1012.8 1011.3 1007.4 1008.0 1014.1 1018.7 1018.0 1026.1 1016.2 MAX. QNH PRESSURE IN HPA 1027.8 1038.6 1027.1 1023.5 1020.2 1018.6 1014.4 1015.1 1020.6 1028.1 1031.1 1035.4 1038.6 DAY 4 18 5 4 13 16 3 30 30 8 30 19 MIN. QNH PRESSURE IN HPA 1009.4 1008.7 1004.4 1003.9 1002.3 1004.1 1004.1 1000.9 1008.3 1003.9 1004.7 1008.1 1000.9 DAY 8 8 25 17 28 10 16 15 8 18 12 14 MEAN QFF PRESSURE IN HPA 1020.2 1027.9 1018.0 1012.6 1013.1 1011.7 1007.8 1008.4 1014.5 1019.0 1018.3 1026.3 1016.5 MAX. QFF PRESSURE IN HPA 1028.0 1038.8 1027.3 1023.7 1020.5 1018.9 1014.8 1015.4 1020.9 1028.4 1031.4 1035.7 1038.8 DAY 4 18 5 4 13 16 3 30 30 8 30 19 MIN. QFF PRESSURE IN HPA 1009.6 1008.9 1004.7 1004.2 1002.7 1004.5 1004.5 1001.3 1008.7 1004.3 1005.0 1008.3 1001.3 DAY 8 8 25 17 28 10 29 15 8 18 12 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1984 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1023.5 1031.1 1021.2 1015.5 1016.2 1014.6 1010.4 1011.2 1017.6 1022.1 1021.5 1029.5 1019.5 MAX. QFE PRESSURE IN HPA 1031.0 1042.5 1030.2 1026.4 1023.4 1021.9 1018.5 1018.2 1023.4 1032.0 1035.3 1039.3 1042.5 DAY 4 18 5 4 12 12 3 30 30 21 30 18 MIN. QFE PRESSURE IN HPA 1012.1 1011.1 1009.1 1006.5 1005.8 1006.6 1006.7 1004.9 1011.6 1007.6 1008.1 1010.7 1004.9 DAY 8 8 25 17 28 10 30 15 8 17 12 14 MEAN QNH PRESSURE IN HPA 1020.6 1028.2 1018.4 1012.7 1013.4 1011.8 1007.6 1008.4 1014.7 1019.3 1018.7 1026.7 1016.7 MAX. QNH PRESSURE IN HPA 1028.2 1039.6 1027.4 1023.6 1020.6 1019.1 1015.7 1015.4 1020.6 1029.2 1032.4 1036.4 1039.6 DAY 4 18 5 4 12 12 3 30 30 21 30 18 MIN. QNH PRESSURE IN HPA 1009.3 1008.3 1006.3 1003.7 1003.0 1003.8 1003.9 1002.1 1008.8 1004.8 1005.3 1007.9 1002.1 DAY 8 8 25 17 28 10 30 15 8 17 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 1022.7 1030.7 1020.9 1015.4 1016.4 1014.3 1010.3 1010.9 1017.3 1021.5 1021.0 1028.4 1019.1 MAX. QFE PRESSURE IN HPA 1030.1 1042.2 1030.4 1026.0 1024.0 1022.0 1018.8 1018.6 1023.5 1031.9 1035.1 1038.5 1042.2 DAY 4 18 4 4 12 12 3 30 30 21 30 18 MIN. QFE PRESSURE IN HPA 1011.1 1010.5 1008.9 1005.0 1006.0 1006.6 1006.7 1004.7 1011.7 1006.1 1007.6 1010.5 1004.7 DAY 8 8 18 9 28 10 15 15 8 17 12 14 MEAN QNH PRESSURE IN HPA 1019.9 1027.8 1018.0 1012.6 1013.5 1011.5 1007.5 1008.1 1014.4 1018.6 1018.2 1025.6 1016.3 MAX. QNH PRESSURE IN HPA 1027.3 1039.3 1027.6 1023.2 1021.2 1019.2 1016.0 1015.8 1020.7 1029.1 1032.2 1035.6 1039.3 DAY 4 18 4 4 12 12 3 30 30 21 30 18 MIN. QNH PRESSURE IN HPA 1008.3 1007.7 1006.1 1002.2 1003.2 1003.8 1003.9 1001.9 1008.9 1003.3 1004.8 1007.7 1001.9 DAY 8 8 18 9 28 10 15 15 8 17 12 14 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 1022.0 1029.6 1020.2 1014.6 1016.1 1013.4 1009.5 1010.0 1016.4 1020.9 1020.4 1027.9 1018.4 MAX. QFE PRESSURE IN HPA 1028.6 1041.1 1029.8 1025.4 1023.9 1021.9 1018.8 1018.4 1022.2 1031.3 1035.0 1038.4 1041.1 DAY 4 18 4 3 12 12 3 30 30 21 30 18 MIN. QFE PRESSURE IN HPA 1011.5 1010.0 1008.3 1003.3 1005.5 1004.9 1005.5 1004.3 1010.1 1004.7 1008.5 1010.9 1003.3 DAY 8 8 18 9 27 20 15 15 8 17 12 14 MEAN QNH PRESSURE IN HPA 1019.1 1026.7 1017.4 1011.8 1013.3 1010.6 1006.7 1007.2 1013.6 1018.1 1017.6 1025.1 1015.6 MAX. QNH PRESSURE IN HPA 1025.8 1038.2 1027.0 1022.6 1021.1 1019.1 1016.0 1015.6 1019.4 1028.5 1032.1 1035.5 1038.2 DAY 4 18 4 3 12 12 3 30 30 21 30 18 MIN. QNH PRESSURE IN HPA 1008.7 1007.2 1005.5 1000.5 1002.7 1002.1 1002.7 1001.5 1007.3 1001.9 1005.7 1008.1 1000.5 DAY 8 8 18 9 27 20 15 15 8 17 12 14 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1984 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1022.5 1029.8 1020.5 1014.4 1016.1 1012.9 1008.8 1009.6 1016.2 1021.1 1020.9 1028.3 1018.4 MAX. QFE PRESSURE IN HPA 1028.4 1041.4 1029.6 1025.9 1023.9 1022.3 1018.0 1017.9 1021.9 1032.3 1036.0 1038.7 1041.4 DAY 4 18 9 3 12 15 3 30 30 21 30 18 MIN. QFE PRESSURE IN HPA 1011.7 1012.3 1008.6 1002.5 1003.8 1004.1 1004.6 1003.9 1010.4 1007.0 1008.8 1010.2 1002.5 DAY 8 8 24 9 27 20 29 14 8 16 12 13 MEAN QNH PRESSURE IN HPA 1019.6 1026.9 1017.6 1011.6 1013.2 1010.1 1006.0 1006.8 1013.4 1018.3 1018.1 1025.4 1015.6 MAX. QNH PRESSURE IN HPA 1025.6 1038.5 1026.8 1023.1 1021.1 1019.5 1015.2 1015.1 1019.1 1029.5 1033.1 1035.8 1038.5 DAY 4 18 9 3 12 15 3 30 30 21 30 18 MIN. QNH PRESSURE IN HPA 1008.9 1009.5 1005.8 999.7 1001.0 1001.3 1001.8 1001.1 1007.6 1004.2 1006.0 1007.4 999.7 DAY 8 8 24 9 27 20 29 14 8 16 12 13 MEAN QFF PRESSURE IN HPA 1019.9 1027.1 1017.9 1011.9 1013.6 1010.5 1006.4 1007.2 1013.7 1018.6 1018.4 1025.6 1015.9 MAX. QFF PRESSURE IN HPA 1025.8 1038.7 1027.0 1023.3 1021.4 1019.8 1015.6 1015.4 1019.5 1029.7 1033.4 1036.1 1038.7 DAY 4 18 9 3 12 15 3 30 30 21 30 18 MIN. QFF PRESSURE IN HPA 1009.1 1009.7 1006.1 1000.0 1001.4 1001.7 1002.2 1001.5 1008.0 1004.6 1006.3 1007.6 1000.0 DAY 8 8 24 9 27 20 29 14 8 16 12 13 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 NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.3 7.5 7.0 14.8 21.2 25.5 25.2 26.5 24.3 18.3 14.8 10.2 16.9 MINIMUN AIR TEMPERATURE (C) 3.4 3.2 3.2 10.8 16.5 20.9 21.2 20.9 19.4 13.8 10.5 5.9 12.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 2 15 25 16 7 0 0 0 65 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 6 4 9 0 0 0 0 0 0 0 0 0 19 TEMPERATURE RECORDS LOWEST(C) -1.0 -2.0 -3.0 7.0 11.0 19.0 19.0 17.2 16.0 10.0 6.7 1.0 -3.0 DAY 25 24 11 2 6 10 19 29 22 24 21 31 MAXIMUM AIR TEMPERATURE (C) 10.0 10.8 9.4 17.6 23.8 27.9 27.7 29.3 26.8 21.0 17.3 13.0 19.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 0 2 3 17 2 0 0 0 25 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 14.0 25.5 19.0 30.0 28.0 30.0 31.0 31.5 30.6 25.0 22.0 18.2 31.5 DAY 6 14 20 12 20 20 13 9 2 1 9 1 DIF. BETWEEN (MAX.-MIN.) (C) 6.6 7.6 6.2 6.8 7.3 7.0 6.5 8.4 7.4 7.2 6.8 7.1 7.1 MEAN DAILY TEMP. (MDT) (C) 6.7 7.0 6.3 14.2 20.2 24.4 24.5 25.1 23.1 17.4 13.9 9.5 16.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 3.0 22.8 102.1 107.8 126.9 66.6 1.6 0.0 0.0 431.0 HEATING DEG. DAYS(BASE 18 0C) 349.9 307.8 362.0 119.7 16.6 0.0 0.0 0.0 0.0 33.7 122.6 264.9 1577.3 DEWPOINT (MEAN C) 4.8 3.9 3.8 10.6 16.4 19.6 19.4 20.4 18.9 14.1 12.4 7.6 12.7 MIXING RATIO (G/KG) 5.35 5.11 5.08 8.04 11.80 14.47 14.30 15.21 13.80 10.16 8.99 6.50 9.90 VAPOUR PRESSURE (HPA) 8.71 8.26 8.28 12.95 18.88 22.96 22.74 24.18 22.01 16.39 14.57 10.58 15.88 SATURATION DEF. (HPA) 1.70 2.58 2.04 4.24 6.88 9.86 9.62 10.95 8.86 4.96 2.57 2.03 5.53 RELATIVE HUMIDITY (MEAN %) 84 81 81 78 75 71 72 70 73 78 86 85 78 RELATIVE HUMIDITY (MAX. %) 94 92 93 90 88 85 87 84 85 91 95 94 90 RELATIVE HUMIDITY (MIN. %) 74 69 70 67 66 61 62 60 65 69 78 76 68 RELATIVE HUMIDITY (MEAN% 03UTC) 92 89 92 86 88 84 84 82 84 89 93 93 88 RELATIVE HUMIDITY (MEAN% 09UTC) 79 75 75 73 70 65 67 66 68 72 80 78 72 RELATIVE HUMIDITY (MEAN% 15UTC) 87 83 83 80 75 69 70 67 73 80 89 88 79 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 54.0 136.0 74.8 11.0 8.0 11.0 33.2 57.0 112.5 285.4 210.6 154.4 1147.9 DAYS WITH PRECIPITATION >=10 1 7 2 0 0 0 0 4 4 7 6 5 36 DAYS WITH PRECIPITATION >= 5 4 9 5 1 1 0 4 5 4 9 7 8 57 DAYS WITH PRECIPITATION >= 1 9 15 13 4 2 4 8 6 5 14 10 10 100 DAYS WITH PRECIPITATION 9 15 13 4 2 4 12 6 7 14 12 12 110 GREATEST DAILY PRECIPITATION 21.0 23.0 21.0 5.0 6.0 4.0 7.0 14.0 61.0 82.0 66.0 36.0 82.0 DAY 16 6 8 16 3 16 3 25 20 2 23 13 DAY WITH THUNDER STORM 0 0 0 0 0 1 0 0 0 1 0 0 2 DAYS WITH SNOW OR SLEET 0 2 5 0 0 0 0 0 0 0 0 0 7 DAYS WITH DUST 0 0 0 0 0 1 0 0 2 0 0 0 3 WIND DIRECTION (PREVAILING) 270 270 90 90 90 315 315 315 360 90 90 270 315 PREVAILING WIND SPEED(KNOTS) 8.6 10.3 7.0 8.3 5.5 8.3 7.1 8.3 7.6 7.0 5.2 8.6 8.0 PREVAILING WIND PERCENT 10.3 17.1 12.9 14.0 9.7 8.0 16.1 12.9 9.3 7.7 10.0 18.1 9.2 CALMS PERCENT OF WIND 69.0 52.1 58.1 64.0 70.3 72.0 67.7 65.2 64.0 72.3 66.0 52.9 64.5 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 307 305 351 30 6 340 318 351 335 24 48 290 336 VECTOR WIND MAGNITUDE(KNOTS) 0.7 1.5 1.1 1.1 0.9 1.1 1.6 1.2 1.6 0.6 0.4 1.5 1.0 WIND STEADINESES (MEAN %) 29.2 36.6 34.4 40.7 47.4 55.0 76.2 50.0 59.3 28.6 22.2 42.9 38.5 WIND SPEED (MEAN KNOTS) 2.4 4.1 3.2 2.7 1.9 2.0 2.1 2.4 2.7 2.1 1.8 3.5 2.6 FASTEST WIND DIRECTION 120 270 280 330 330 330 330 330 270 121 330 260 270 FASTEST WIND SPEED (KNOTS) 16 39 23 19 17 14 17 17 16 39 16 21 39 DAY 17 18 7 15 27 14 20 9 15 31 19 3 DAYS WITH SKY CLEAR (0-2)/8 10 8 7 8 16 13 4 18 10 9 7 7 117 DAYS WITH P.CLOUDY (3-6)/8 4 4 8 8 9 8 8 5 11 8 7 7 87 DAYS WITH CLOUDY (7-8)/8 17 16 16 14 6 9 19 8 9 14 16 17 161 DAYS WITH VISIBILITY =< 2 KM 1 6 5 2 1 1 2 0 2 7 2 1 30 DURATION OF SUNSHINE HOURS 92.5 ****** 58.2 171.4 255.5 211.3 105.4 231.2 168.7 124.0 122.9 115.6 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1021.2 1013.9 1024.8 1015.2 1014.6 1010.8 1012.0 1013.8 1014.9 1020.7 1022.9 1022.9 1017.3 MAX. QFE PRESSURE IN HPA 1033.9 1031.7 1041.9 1034.2 1025.1 1018.6 1017.9 1021.1 1026.3 1030.9 1035.0 1036.9 1041.9 DAY-HOUR 14- 6 23-15 9- 6 16-15 12- 9 9- 9 16- 9 25- 6 17- 6 2- 9 19- 9 14- 6 MIN. QFE PRESSURE IN HPA 1008.9 997.4 1003.3 1006.2 1004.8 999.4 1003.3 1006.6 1006.5 1008.6 1012.1 1002.5 997.4 DAY-HOUR 21-12 5-15 23- 3 24- 6 1- 3 20-15 19-15 5-15 14-12 18-12 26-15 19- 3 MEAN QNH PRESSURE IN HPA 1018.4 1011.1 1022.0 1012.3 1011.8 1008.0 1009.2 1011.0 1012.0 1017.9 1020.0 1020.0 1014.5 MAX. QNH PRESSURE IN HPA 1031.1 1028.9 1039.0 1031.3 1022.3 1015.8 1015.1 1018.3 1023.5 1028.1 1032.1 1034.0 1039.0 DAY-HOUR 14- 6 23-15 9- 6 16-15 12- 9 9- 9 16- 9 25- 6 17- 6 2- 9 19- 9 14- 6 MIN. QNH PRESSURE IN HPA 1006.1 994.6 1000.5 1003.4 1002.0 996.6 1000.5 1003.8 1003.7 1005.8 1009.3 999.7 994.6 DAY-HOUR 21-12 5-15 23- 3 24- 6 1- 3 20-15 19-15 5-15 14-12 18-12 26-15 19- 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 1021.2 1013.8 1024.9 1015.1 1014.5 1011.2 1012.4 1014.0 1015.0 1020.4 1023.0 1023.1 1017.4 MAX. QFE PRESSURE IN HPA 1032.6 1028.9 1041.3 1034.0 1023.3 1017.6 1017.7 1020.8 1025.8 1029.1 1032.8 1036.2 1041.3 DAY 23 24 4 17 12 10 16 25 17 2 19 14 MIN. QFE PRESSURE IN HPA 1011.6 1003.7 1003.3 1007.4 1004.8 1001.4 1005.5 1007.5 1007.1 1009.8 1015.5 1002.5 1001.4 DAY 21 5 23 24 1 20 20 5 7 18 9 19 MEAN QNH PRESSURE IN HPA 1018.3 1011.0 1022.0 1012.3 1011.7 1008.4 1009.6 1011.2 1012.2 1017.6 1020.2 1020.3 1014.6 MAX. QNH PRESSURE IN HPA 1029.8 1026.1 1038.4 1031.1 1020.5 1014.8 1014.9 1018.0 1023.0 1026.3 1030.0 1033.3 1038.4 DAY 23 24 4 17 12 10 16 25 17 2 19 14 MIN. QNH PRESSURE IN HPA 1008.8 1000.9 1000.5 1004.6 1002.0 998.6 1002.7 1004.7 1004.3 1007.0 1012.7 999.7 998.6 DAY 21 5 23 24 1 20 20 5 7 18 9 19 MEAN QFF PRESSURE IN HPA 1018.6 1011.3 1022.3 1012.6 1012.0 1008.8 1010.0 1011.6 1012.6 1017.9 1020.5 1020.5 1014.9 MAX. QFF PRESSURE IN HPA 1030.0 1026.2 1038.6 1031.4 1020.8 1015.2 1015.3 1018.4 1023.3 1026.6 1030.2 1033.6 1038.6 DAY 23 24 4 17 12 10 16 25 17 2 19 14 MIN. QFF PRESSURE IN HPA 1009.0 1001.2 1000.8 1004.9 1002.3 999.0 1003.1 1005.1 1004.7 1007.3 1013.0 1000.0 999.0 DAY 21 5 23 24 1 20 20 5 7 18 9 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.1 1014.4 1025.4 1015.9 1015.0 1011.5 1012.6 1014.4 1015.6 1021.4 1023.7 1023.6 1018.0 MAX. QFE PRESSURE IN HPA 1033.9 1029.4 1041.9 1033.7 1024.4 1018.0 1017.8 1021.1 1026.3 1030.7 1033.3 1036.9 1041.9 DAY 14 28 9 17 12 9 17 25 17 31 19 14 MIN. QFE PRESSURE IN HPA 1010.9 1002.5 1004.8 1006.2 1008.1 1001.5 1005.7 1007.6 1008.1 1009.8 1016.1 1002.5 1001.5 DAY 21 5 23 24 1 20 19 5 7 18 26 19 MEAN QNH PRESSURE IN HPA 1019.2 1011.6 1022.6 1013.1 1012.2 1008.7 1009.8 1011.6 1012.8 1018.5 1020.9 1020.8 1015.1 MAX. QNH PRESSURE IN HPA 1031.1 1026.6 1039.0 1030.9 1021.6 1015.2 1015.0 1018.3 1023.5 1027.9 1030.5 1034.0 1039.0 DAY 14 28 9 17 12 9 17 25 17 31 19 14 MIN. QNH PRESSURE IN HPA 1008.1 999.7 1002.0 1003.4 1005.3 998.7 1002.9 1004.8 1005.3 1007.0 1013.3 999.7 998.7 DAY 21 5 23 24 1 20 19 5 7 18 26 19 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 1021.3 1014.0 1025.1 1015.7 1014.9 1011.2 1012.5 1014.2 1015.2 1021.2 1023.2 1022.6 1017.6 MAX. QFE PRESSURE IN HPA 1033.8 1028.9 1041.5 1033.3 1025.1 1018.6 1017.9 1021.1 1026.0 1030.9 1035.0 1035.6 1041.5 DAY 23 23 9 17 12 9 16 25 22 2 19 14 MIN. QFE PRESSURE IN HPA 1010.3 1000.7 1005.7 1007.4 1007.7 1000.6 1005.5 1007.4 1007.2 1009.3 1014.7 1003.0 1000.6 DAY 21 5 23 24 1 20 19 5 14 18 26 19 MEAN QNH PRESSURE IN HPA 1018.5 1011.2 1022.3 1012.9 1012.1 1008.4 1009.7 1011.4 1012.4 1018.4 1020.3 1019.8 1014.8 MAX. QNH PRESSURE IN HPA 1030.9 1026.1 1038.6 1030.5 1022.3 1015.8 1015.1 1018.3 1023.2 1028.1 1032.1 1032.7 1038.6 DAY 23 23 9 17 12 9 16 25 22 2 19 14 MIN. QNH PRESSURE IN HPA 1007.5 997.9 1002.9 1004.6 1004.9 997.8 1002.7 1004.6 1004.4 1006.5 1011.9 1000.2 997.8 DAY 21 5 23 24 1 20 19 5 14 18 26 19 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 1020.7 1013.4 1024.3 1014.7 1014.4 1010.4 1011.6 1013.4 1014.3 1020.3 1022.3 1022.2 1016.8 MAX. QFE PRESSURE IN HPA 1032.9 1029.3 1041.2 1033.4 1023.9 1018.2 1016.9 1020.0 1024.1 1030.2 1033.3 1034.4 1041.2 DAY 23 23 9 16 12 9 16 24 22 31 19 14 MIN. QFE PRESSURE IN HPA 1008.9 998.3 1006.6 1006.4 1006.8 1000.2 1004.3 1007.1 1006.5 1008.6 1012.6 1003.5 998.3 DAY 21 5 19 24 20 20 19 5 14 18 26 19 MEAN QNH PRESSURE IN HPA 1017.8 1010.6 1021.5 1011.9 1011.6 1007.6 1008.8 1010.6 1011.5 1017.4 1019.5 1019.4 1014.0 MAX. QNH PRESSURE IN HPA 1030.1 1026.5 1038.3 1030.6 1021.1 1015.4 1014.1 1017.2 1021.3 1027.4 1030.5 1031.5 1038.3 DAY 23 23 9 16 12 9 16 24 22 31 19 14 MIN. QNH PRESSURE IN HPA 1006.1 995.5 1003.8 1003.6 1004.0 997.4 1001.5 1004.3 1003.7 1005.8 1009.8 1000.7 995.5 DAY 21 5 19 24 20 20 19 5 14 18 26 19 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1020.9 1013.9 1024.4 1014.3 1014.2 1009.7 1011.1 1013.0 1014.2 1020.5 1022.3 1022.9 1016.8 MAX. QFE PRESSURE IN HPA 1032.7 1031.7 1041.5 1034.2 1023.3 1018.0 1016.4 1019.5 1023.5 1030.8 1033.6 1033.7 1041.5 DAY 23 23 9 16 12 9 15 24 21 2 19 14 MIN. QFE PRESSURE IN HPA 1009.8 997.4 1007.6 1006.7 1008.3 999.4 1003.3 1006.6 1006.8 1008.9 1012.1 1005.0 997.4 DAY 21 5 19 12 21 20 19 5 14 20 26 18 MEAN QNH PRESSURE IN HPA 1018.1 1011.1 1021.6 1011.5 1011.4 1006.9 1008.3 1010.2 1011.4 1017.6 1019.5 1020.1 1014.0 MAX. QNH PRESSURE IN HPA 1029.9 1028.9 1038.6 1031.3 1020.5 1015.2 1013.6 1016.7 1020.7 1028.0 1030.8 1030.9 1038.6 DAY 23 23 9 16 12 9 15 24 21 2 19 14 MIN. QNH PRESSURE IN HPA 1007.0 994.6 1004.8 1003.9 1005.5 996.6 1000.5 1003.8 1004.0 1006.1 1009.3 1002.2 994.6 DAY 21 5 19 12 21 20 19 5 14 20 26 18 MEAN QFF PRESSURE IN HPA 1018.3 1011.3 1021.8 1011.8 1011.7 1007.3 1008.7 1010.6 1011.7 1018.0 1019.6 1020.3 1014.3 MAX. QFF PRESSURE IN HPA 1030.1 1029.0 1038.8 1031.6 1020.8 1015.6 1014.0 1017.1 1021.0 1028.3 1031.0 1031.1 1038.8 DAY 23 23 9 16 12 9 15 24 21 2 19 14 MIN. QFF PRESSURE IN HPA 1007.2 994.9 1005.1 1004.3 1005.9 997.0 1000.9 1004.2 1004.4 1006.5 1009.6 1002.5 994.9 DAY 21 5 19 12 21 20 19 5 14 20 26 18 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 NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 9.0 8.1 7.6 14.5 18.8 23.8 26.2 26.6 25.0 19.2 13.2 8.9 16.7 MINIMUN AIR TEMPERATURE (C) 4.3 5.2 5.1 11.2 15.4 19.4 21.7 21.5 19.0 15.0 9.9 4.1 12.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 9 22 19 8 0 0 0 58 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 3 0 0 0 0 0 0 0 0 0 0 3 6 TEMPERATURE RECORDS LOWEST(C) -1.2 0.2 1.6 6.4 11.2 15.0 19.0 17.5 15.6 11.4 3.0 -1.5 -1.5 DAY 24 3 18 2 7 24 3 6 20 17 16 18 MAXIMUM AIR TEMPERATURE (C) 12.4 10.2 9.4 16.6 21.0 26.0 28.5 29.3 28.1 22.5 15.7 12.5 19.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 1 0 8 7 1 0 0 0 17 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 17.8 16.0 12.8 29.0 31.0 28.6 31.4 30.8 30.0 27.2 22.6 24.0 31.4 DAY 4 20 10 15 3 13 10 16 10 21 9 27 DIF. BETWEEN (MAX.-MIN.) (C) 8.1 5.0 4.3 5.4 5.6 6.6 6.8 7.8 9.1 7.5 5.8 8.4 6.8 MEAN DAILY TEMP. (MDT) (C) 8.4 7.7 7.3 13.9 18.2 22.7 25.1 25.4 23.6 18.7 12.8 8.3 16.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.5 3.5 59.0 123.1 136.2 80.0 3.1 0.0 0.0 405.5 HEATING DEG. DAYS(BASE 18 0C) 288.9 278.3 321.6 126.9 26.2 0.0 0.0 0.0 0.0 12.6 158.0 289.7 1502.1 DEWPOINT (MEAN C) 6.6 5.9 4.9 11.9 15.8 20.6 22.1 23.1 21.9 16.7 11.4 6.5 13.9 MIXING RATIO (G/KG) 6.14 5.76 5.36 8.70 11.29 15.35 16.91 17.90 16.70 11.93 8.51 6.04 10.88 VAPOUR PRESSURE (HPA) 9.97 9.37 8.77 14.08 18.11 24.35 26.80 28.37 26.59 19.21 13.78 9.82 17.43 SATURATION DEF. (HPA) 1.79 1.56 1.79 2.70 3.86 5.51 7.59 6.86 5.79 3.37 1.85 1.88 3.71 RELATIVE HUMIDITY (MEAN %) 86 86 84 86 83 82 79 81 83 86 89 86 84 RELATIVE HUMIDITY (MAX. %) 94 94 93 94 92 90 89 93 93 96 95 95 93 RELATIVE HUMIDITY (MIN. %) 77 80 75 78 77 76 71 74 76 77 82 76 77 RELATIVE HUMIDITY (MEAN% 03UTC) 90 93 92 94 90 90 90 92 91 96 95 91 92 RELATIVE HUMIDITY (MEAN% 09UTC) 80 82 78 83 81 79 76 76 77 80 83 79 80 RELATIVE HUMIDITY (MEAN% 15UTC) 90 88 85 84 82 82 76 83 87 89 92 93 86 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 153.8 45.6 60.0 22.8 12.3 43.2 26.8 30.6 265.2 302.3 288.8 146.6 1398.0 DAYS WITH PRECIPITATION >=10 4 1 1 0 0 1 1 1 5 6 9 6 35 DAYS WITH PRECIPITATION >= 5 4 4 6 1 1 3 2 3 6 6 14 8 58 DAYS WITH PRECIPITATION >= 1 5 10 10 7 4 4 4 5 7 10 17 10 93 DAYS WITH PRECIPITATION 6 13 14 11 10 7 6 5 9 14 18 12 125 GREATEST DAILY PRECIPITATION 65.0 13.0 12.0 5.0 5.0 25.0 12.4 15.0 94.0 71.0 54.0 29.0 94.0 DAY 20 1 9 5 9 19 18 23 30 24 5 5 DAY WITH THUNDER STORM 0 0 0 0 1 0 0 1 2 3 1 1 9 DAYS WITH SNOW OR SLEET 2 0 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH DUST 0 0 0 0 0 0 1 0 0 0 1 0 2 WIND DIRECTION (PREVAILING) 270 270 270 360 90 315 315 315 45 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 9.4 7.4 9.2 4.1 6.5 5.5 7.4 6.9 5.9 8.0 9.7 7.7 8.0 PREVAILING WIND PERCENT 14.0 23.5 17.4 13.3 14.8 16.0 16.4 24.5 14.7 14.2 15.3 13.6 12.4 CALMS PERCENT OF WIND 60.0 46.2 41.9 46.0 36.1 39.3 44.5 32.3 38.0 54.2 64.7 54.5 46.4 NO. OF WIND OBSERVATION 150 132 155 150 155 150 146 155 150 155 150 154 1802 VECTOR WIND DIRECTION (MEAN) 298 302 351 358 357 339 334 336 10 315 295 281 336 VECTOR WIND MAGNITUDE(KNOTS) 1.1 1.4 1.3 1.6 1.4 1.7 2.4 2.5 1.9 0.8 0.8 0.3 1.3 WIND STEADINESES (MEAN %) 35.5 40.0 28.9 51.6 32.6 50.0 66.7 58.1 48.7 27.6 24.2 12.0 37.1 WIND SPEED (MEAN KNOTS) 3.1 3.5 4.5 3.1 4.3 3.4 3.6 4.3 3.9 2.9 3.3 2.5 3.5 FASTEST WIND DIRECTION 270 280 90 300 300 310 340 310 40 270 270 290 290 FASTEST WIND SPEED (KNOTS) 23 14 29 25 29 14 14 16 29 17 23 31 31 DAY 19 1 15 16 10 2 10 2 30 7 12 22 DAYS WITH SKY CLEAR (0-2)/8 10 1 3 2 4 8 13 15 17 5 3 11 92 DAYS WITH P.CLOUDY (3-6)/8 5 10 6 9 11 15 8 8 8 11 5 8 104 DAYS WITH CLOUDY (7-8)/8 15 17 22 19 16 7 9 8 5 15 22 12 167 DAYS WITH VISIBILITY =< 2 KM 3 5 7 14 0 1 1 0 2 4 5 1 43 DURATION OF SUNSHINE HOURS 117.1 87.5 67.0 126.2 142.8 183.8 208.8 232.5 225.0 113.7 69.8 137.2 1711.4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1021.9 1021.9 1026.9 1020.9 1016.4 1011.5 1013.1 1014.4 1018.1 1022.0 1024.0 1022.4 1019.5 MAX. QFE PRESSURE IN HPA 1036.0 1030.2 1036.0 1030.7 1027.8 1018.0 1019.8 1018.6 1027.0 1033.7 1035.7 1040.5 1040.5 DAY-HOUR 23- 6 13- 6 16-15 5- 6 18- 6 3- 9 3- 6 4- 3 30- 3 14-15 15-12 10- 6 MIN. QFE PRESSURE IN HPA 1008.1 1007.0 1017.6 1009.6 1000.5 1003.7 1004.3 1005.4 1011.3 1010.3 1008.8 1000.6 1000.5 DAY-HOUR 12- 3 4- 3 9-15 11-15 3-15 13- 3 9-15 22-15 24-15 23- 3 9- 9 27-15 MEAN QNH PRESSURE IN HPA 1019.1 1019.1 1024.1 1018.0 1013.6 1008.7 1010.3 1011.6 1015.3 1019.2 1021.2 1019.6 1016.6 MAX. QNH PRESSURE IN HPA 1033.1 1027.4 1033.1 1027.9 1025.0 1015.2 1017.0 1015.8 1024.2 1030.9 1032.8 1037.6 1037.6 DAY-HOUR 23- 6 13- 6 16-15 5- 6 18- 6 3- 9 3- 6 4- 3 30- 3 14-15 15-12 10- 6 MIN. QNH PRESSURE IN HPA 1005.3 1004.2 1014.8 1006.8 997.7 1000.9 1001.5 1002.6 1008.5 1007.5 1006.0 997.8 997.7 DAY-HOUR 12- 3 4- 3 9-15 11-15 3-15 13- 3 9-15 22-15 24-15 23- 3 9- 9 27-15 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 1021.9 1023.1 1026.9 1020.6 1016.6 1011.7 1013.3 1014.6 1018.2 1021.9 1023.9 1022.6 1019.6 MAX. QFE PRESSURE IN HPA 1034.1 1029.7 1033.3 1029.2 1027.6 1017.5 1019.0 1018.6 1027.0 1031.2 1034.6 1039.5 1039.5 DAY 23 13 3 5 18 3 2 4 30 15 16 11 MIN. QFE PRESSURE IN HPA 1008.1 1007.0 1017.9 1010.6 1002.6 1003.7 1005.1 1006.9 1012.5 1010.3 1009.0 1007.0 1002.6 DAY 12 4 10 11 3 13 10 15 6 23 9 27 MEAN QNH PRESSURE IN HPA 1019.1 1020.2 1024.1 1017.8 1013.8 1008.9 1010.5 1011.8 1015.4 1019.1 1021.1 1019.8 1016.8 MAX. QNH PRESSURE IN HPA 1031.2 1026.9 1030.5 1026.4 1024.8 1014.7 1016.2 1015.8 1024.2 1028.4 1031.7 1036.6 1036.6 DAY 23 13 3 5 18 3 2 4 30 15 16 11 MIN. QNH PRESSURE IN HPA 1005.3 1004.2 1015.1 1007.8 999.8 1000.9 1002.3 1004.1 1009.7 1007.5 1006.2 1004.2 999.8 DAY 12 4 10 11 3 13 10 15 6 23 9 27 MEAN QFF PRESSURE IN HPA 1020.0 1020.3 1024.1 1018.1 1014.2 1009.3 1010.9 1012.1 1015.7 1019.4 1021.3 1020.0 1017.1 MAX. QFF PRESSURE IN HPA 1031.5 1027.1 1030.6 1026.6 1025.1 1015.1 1016.6 1016.2 1024.5 1028.7 1032.0 1036.8 1036.8 DAY 23 13 3 5 18 3 3 4 30 15 16 11 MIN. QFF PRESSURE IN HPA 1008.4 1004.4 1015.3 1008.1 1000.2 1001.3 1002.7 1004.5 1010.1 1007.8 1006.5 1004.5 1000.2 DAY 18 4 10 11 3 13 10 15 6 23 9 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.7 1022.9 1027.7 1021.2 1017.2 1011.9 1013.9 1015.1 1019.0 1022.8 1024.6 1023.4 1020.2 MAX. QFE PRESSURE IN HPA 1036.0 1030.2 1034.9 1030.7 1027.8 1017.6 1019.8 1018.0 1026.8 1032.2 1034.9 1040.5 1040.5 DAY 23 13 16 5 18 3 3 4 30 15 16 10 MIN. QFE PRESSURE IN HPA 1010.4 1010.6 1019.7 1010.6 1004.1 1005.6 1006.5 1008.1 1013.5 1011.6 1009.0 1007.1 1004.1 DAY 12 4 10 11 3 13 9 15 15 23 9 27 MEAN QNH PRESSURE IN HPA 1019.9 1020.1 1024.9 1018.4 1014.4 1009.1 1011.1 1012.3 1016.1 1020.0 1021.8 1020.6 1017.4 MAX. QNH PRESSURE IN HPA 1033.1 1027.4 1032.0 1027.9 1025.0 1014.8 1017.0 1015.2 1024.0 1029.4 1032.0 1037.6 1037.6 DAY 23 13 16 5 18 3 3 4 30 15 16 10 MIN. QNH PRESSURE IN HPA 1007.6 1007.8 1016.9 1007.8 1001.3 1002.8 1003.7 1005.3 1010.7 1008.8 1006.2 1004.3 1001.3 DAY 12 4 10 11 3 13 9 15 15 23 9 27 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 1021.8 1021.8 1027.2 1021.3 1016.7 1011.8 1013.6 1014.7 1018.5 1022.0 1024.1 1022.3 1019.6 MAX. QFE PRESSURE IN HPA 1035.5 1029.3 1035.2 1029.7 1027.8 1018.0 1019.0 1018.6 1024.0 1032.1 1035.1 1039.5 1039.5 DAY 23 13 16 5 18 3 2 24 7 14 15 10 MIN. QFE PRESSURE IN HPA 1010.4 1010.4 1019.6 1010.8 1003.4 1006.2 1006.9 1007.8 1012.9 1012.4 1008.8 1003.9 1003.4 DAY 12 4 9 15 3 12 9 15 24 4 9 27 MEAN QNH PRESSURE IN HPA 1018.9 1018.9 1024.4 1018.5 1013.8 1009.0 1010.8 1011.9 1015.7 1019.2 1021.2 1019.4 1016.8 MAX. QNH PRESSURE IN HPA 1032.6 1026.5 1032.3 1026.9 1025.0 1015.2 1016.2 1015.8 1021.2 1029.3 1032.2 1036.6 1036.6 DAY 23 13 16 5 18 3 2 24 7 14 15 10 MIN. QNH PRESSURE IN HPA 1007.6 1007.6 1016.8 1008.0 1000.6 1003.4 1004.1 1005.0 1010.1 1009.6 1006.0 1001.1 1000.6 DAY 12 4 9 15 3 12 9 15 24 4 9 27 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 1021.2 1020.9 1026.5 1020.7 1015.8 1011.3 1012.8 1014.0 1017.6 1021.5 1023.7 1021.5 1018.9 MAX. QFE PRESSURE IN HPA 1034.8 1028.1 1035.4 1029.2 1027.6 1017.8 1018.4 1017.9 1023.5 1033.5 1035.7 1039.0 1039.0 DAY 23 13 16 5 17 2 2 24 29 14 15 10 MIN. QFE PRESSURE IN HPA 1010.0 1009.6 1018.3 1009.7 1001.7 1005.0 1005.7 1007.0 1012.1 1012.2 1009.4 1001.9 1001.7 DAY 16 6 9 15 3 12 9 22 24 4 9 27 MEAN QNH PRESSURE IN HPA 1018.3 1018.0 1023.7 1017.8 1013.0 1008.4 1010.0 1011.2 1014.8 1018.7 1020.9 1018.7 1016.1 MAX. QNH PRESSURE IN HPA 1031.9 1025.3 1032.5 1026.4 1024.8 1015.0 1015.6 1015.1 1020.7 1030.7 1032.8 1036.1 1036.1 DAY 23 13 16 5 17 2 2 24 29 14 15 10 MIN. QNH PRESSURE IN HPA 1007.2 1006.8 1015.5 1006.9 998.9 1002.2 1002.9 1004.2 1009.3 1009.4 1006.6 999.1 998.9 DAY 16 6 9 15 3 12 9 22 24 4 9 27 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1021.9 1021.4 1026.2 1020.5 1015.7 1011.0 1012.2 1013.6 1017.3 1021.9 1024.0 1022.3 1019.0 MAX. QFE PRESSURE IN HPA 1035.2 1028.8 1036.0 1029.7 1027.6 1016.9 1018.5 1018.0 1025.3 1033.7 1035.1 1040.1 1040.1 DAY 23 12 16 4 17 2 21 24 29 14 15 10 MIN. QFE PRESSURE IN HPA 1011.5 1010.5 1017.6 1009.6 1000.5 1004.0 1004.3 1005.4 1011.3 1012.2 1009.6 1000.6 1000.5 DAY 16 3 9 11 3 12 9 22 24 4 9 27 MEAN QNH PRESSURE IN HPA 1019.0 1018.6 1023.4 1017.7 1012.9 1008.1 1009.4 1010.8 1014.5 1019.1 1021.1 1019.4 1016.2 MAX. QNH PRESSURE IN HPA 1032.3 1026.0 1033.1 1026.9 1024.8 1014.1 1015.7 1015.2 1022.5 1030.9 1032.2 1037.2 1037.2 DAY 23 12 16 4 17 2 21 24 29 14 15 10 MIN. QNH PRESSURE IN HPA 1008.7 1007.7 1014.8 1006.8 997.7 1001.2 1001.5 1002.6 1008.5 1009.4 1006.8 997.8 997.7 DAY 16 3 9 11 3 12 9 22 24 4 9 27 MEAN QFF PRESSURE IN HPA 1019.4 1019.2 1023.6 1018.0 1013.2 1008.5 1009.9 1011.1 1014.9 1019.5 1021.4 1019.7 1016.5 MAX. QFF PRESSURE IN HPA 1032.5 1024.5 1033.4 1027.2 1025.1 1014.5 1016.1 1015.6 1022.8 1031.2 1032.5 1037.4 1037.4 DAY 23 13 16 4 17 2 21 24 29 14 15 10 MIN. QFF PRESSURE IN HPA 1009.0 1007.9 1015.0 1007.1 998.1 1001.6 1001.9 1003.0 1008.9 1009.8 1007.1 998.1 998.1 DAY 16 3 9 11 3 12 9 22 24 4 9 27 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 NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 10.0 8.8 9.0 11.7 19.3 24.5 25.9 25.9 22.2 15.3 13.2 10.5 16.4 MINIMUN AIR TEMPERATURE (C) 4.7 5.5 7.0 8.4 15.6 20.0 20.9 22.4 18.1 11.5 9.0 5.8 12.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 11 16 25 3 0 0 0 56 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS LOWEST(C) 1.2 0.6 2.0 2.5 11.6 17.0 18.0 18.5 13.2 6.2 3.4 1.2 0.6 DAY 13 7 22 2 23 2 5 31 24 30 30 3 MAXIMUM AIR TEMPERATURE (C) 13.8 11.4 10.7 14.9 21.7 27.0 28.3 28.1 24.9 17.9 15.8 14.3 19.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 4 5 15 0 0 0 0 26 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 25.0 23.0 15.5 25.2 33.5 31.4 30.4 32.6 27.0 26.6 21.0 26.0 33.5 DAY 30 25 6 13 23 19 30 4 1 1 21 23 DIF. BETWEEN (MAX.-MIN.) (C) 9.1 5.9 3.7 6.5 6.1 7.0 7.4 5.7 6.8 6.4 6.8 8.5 6.7 MEAN DAILY TEMP. (MDT) (C) 9.3 8.4 8.9 11.6 18.7 23.5 24.6 25.3 21.5 14.7 12.4 10.1 15.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 8.7 78.2 111.0 135.2 33.7 0.0 0.0 0.0 367.0 HEATING DEG. DAYS(BASE 18 0C) 270.9 267.4 282.7 191.8 23.7 0.0 0.0 0.0 1.2 109.4 167.0 246.3 1560.5 DEWPOINT (MEAN C) 7.4 7.1 7.2 9.4 15.7 19.7 21.7 23.1 18.9 13.0 10.6 7.3 13.4 MIXING RATIO (G/KG) 6.43 6.25 6.32 7.39 11.22 14.59 16.47 18.05 13.77 9.37 7.99 6.42 10.35 VAPOUR PRESSURE (HPA) 10.46 10.18 10.23 11.97 17.99 23.21 26.11 28.53 22.04 15.22 12.98 10.41 16.61 SATURATION DEF. (HPA) 2.12 1.36 1.36 2.07 4.74 8.00 7.76 5.60 5.14 2.58 2.48 2.69 3.83 RELATIVE HUMIDITY (MEAN %) 85 90 89 87 81 75 78 85 83 87 85 82 84 RELATIVE HUMIDITY (MAX. %) 95 96 96 96 93 87 89 93 95 96 95 93 94 RELATIVE HUMIDITY (MIN. %) 72 83 82 79 70 68 71 79 73 78 76 70 75 RELATIVE HUMIDITY (MEAN% 03UTC) 93 95 95 95 92 86 88 93 94 95 93 90 92 RELATIVE HUMIDITY (MEAN% 09UTC) 76 85 84 82 76 70 74 82 75 79 77 72 78 RELATIVE HUMIDITY (MEAN% 15UTC) 91 91 90 87 80 76 79 85 87 92 92 89 87 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 16.6 78.9 137.2 70.5 21.3 6.2 57.7 319.7 203.4 441.1 94.2 119.8 1566.6 DAYS WITH PRECIPITATION >=10 0 4 5 2 1 0 3 6 4 11 2 3 41 DAYS WITH PRECIPITATION >= 5 2 6 6 6 2 0 3 6 6 12 6 8 63 DAYS WITH PRECIPITATION >= 1 3 10 12 12 4 3 5 10 10 14 6 10 99 DAYS WITH PRECIPITATION 8 15 20 13 7 7 8 15 12 18 9 13 145 GREATEST DAILY PRECIPITATION 9.0 17.0 56.0 19.4 10.0 3.0 21.0 203.0 72.0 115.0 38.0 40.0 203.0 DAY 11 1 20 5 30 5 3 16 23 26 26 31 DAY WITH THUNDER STORM 0 0 0 2 2 2 1 3 1 0 0 0 11 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 90 270 90 90 315 315 315 315 45 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 5.4 6.9 7.0 5.4 6.2 7.0 7.6 5.9 5.6 8.6 7.0 7.5 7.7 PREVAILING WIND PERCENT 11.6 12.9 18.8 16.7 16.8 15.3 17.9 12.9 12.0 20.6 16.7 16.8 11.6 CALMS PERCENT OF WIND 64.5 56.8 44.2 48.7 43.9 46.0 41.7 51.0 54.7 57.4 61.3 56.1 52.1 NO. OF WIND OBSERVATION 155 139 154 150 155 150 156 155 150 155 150 155 1824 VECTOR WIND DIRECTION (MEAN) 358 322 346 352 340 350 349 330 339 287 314 292 331 VECTOR WIND MAGNITUDE(KNOTS) 0.4 0.8 1.0 1.3 1.5 1.8 2.2 1.5 1.2 2.1 0.9 1.2 1.2 WIND STEADINESES (MEAN %) 20.0 30.8 26.3 39.4 45.5 56.2 56.4 51.7 41.4 67.7 37.5 40.0 40.0 WIND SPEED (MEAN KNOTS) 2.0 2.6 3.8 3.3 3.3 3.2 3.9 2.9 2.9 3.1 2.4 3.0 3.0 FASTEST WIND DIRECTION 310 280 280 300 280 300 310 280 280 280 290 270 280 FASTEST WIND SPEED (KNOTS) 14 35 16 35 23 23 16 25 16 16 16 19 35 DAY 11 26 7 17 9 30 23 19 6 4 7 24 DAYS WITH SKY CLEAR (0-2)/8 12 4 1 7 5 17 16 4 11 3 3 7 90 DAYS WITH P.CLOUDY (3-6)/8 8 6 8 7 13 7 8 12 6 11 13 12 111 DAYS WITH CLOUDY (7-8)/8 11 18 22 16 13 6 7 15 13 17 14 12 164 DAYS WITH VISIBILITY =< 2 KM 4 5 15 12 4 1 1 8 4 5 1 4 64 DURATION OF SUNSHINE HOURS 136.0 83.5 61.4 127.1 166.6 236.1 253.8 128.2 139.1 75.2 102.6 128.5 1638.1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1021.8 1023.4 1018.6 1020.1 1016.2 1013.5 1012.8 1012.5 1018.3 1027.0 1024.8 1021.1 1019.2 MAX. QFE PRESSURE IN HPA 1039.3 1038.2 1032.4 1030.7 1027.5 1021.6 1021.5 1019.7 1026.9 1036.2 1043.2 1039.8 1043.2 DAY-HOUR 21- 3 1- 3 23- 6 1- 6 13- 6 6- 6 10-12 8- 6 23- 6 28- 6 30- 6 1- 6 MIN. QFE PRESSURE IN HPA 1008.2 1006.8 998.5 1001.6 1002.8 1004.8 1003.1 1004.5 1007.8 1013.9 1007.4 1004.8 998.5 DAY-HOUR 2-12 25-15 19-15 19- 9 23-15 2- 9 6-15 18-12 5-15 2-15 3- 9 23- 9 MEAN QNH PRESSURE IN HPA 1018.9 1020.6 1015.7 1017.3 1013.4 1010.7 1010.0 1009.7 1015.5 1024.1 1022.0 1018.3 1016.3 MAX. QNH PRESSURE IN HPA 1036.4 1035.3 1029.6 1027.9 1024.7 1018.8 1018.7 1016.9 1024.1 1033.3 1040.3 1036.9 1040.3 DAY-HOUR 21- 3 1- 3 23- 6 1- 6 13- 6 6- 6 10-12 8- 6 23- 6 28- 6 30- 6 1- 6 MIN. QNH PRESSURE IN HPA 1005.4 1004.0 995.7 998.8 1000.0 1002.0 1000.3 1001.7 1005.0 1011.1 1004.6 1002.0 995.7 DAY-HOUR 2-12 25-15 19-15 19- 9 23-15 2- 9 6-15 18-12 5-15 2-15 3- 9 23- 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 1021.6 1023.9 1018.4 1020.2 1016.4 1013.7 1013.3 1012.8 1018.6 1026.7 1024.9 1021.5 1019.3 MAX. QFE PRESSURE IN HPA 1039.3 1038.2 1031.3 1030.3 1027.1 1021.0 1020.8 1019.1 1025.6 1035.1 1042.2 1039.2 1042.2 DAY 21 1 23 1 13 6 11 8 24 28 30 1 MIN. QFE PRESSURE IN HPA 1009.7 1012.3 1007.0 1006.4 1004.1 1006.4 1006.2 1005.5 1011.5 1017.0 1010.5 1008.5 1004.1 DAY 10 10 19 19 23 2 6 18 22 1 3 23 MEAN QNH PRESSURE IN HPA 1018.8 1021.1 1015.5 1017.4 1013.6 1010.9 1010.5 1010.0 1015.8 1023.9 1022.1 1018.6 1016.5 MAX. QNH PRESSURE IN HPA 1036.4 1035.3 1028.5 1027.5 1024.3 1018.2 1018.0 1016.3 1022.8 1032.2 1039.3 1036.3 1039.3 DAY 21 1 23 1 13 6 11 8 24 28 30 1 MIN. QNH PRESSURE IN HPA 1006.9 1009.5 1004.2 1003.6 1001.3 1003.6 1003.4 1002.7 1008.7 1014.2 1007.7 1005.7 1001.3 DAY 10 10 19 19 23 2 6 18 22 1 3 23 MEAN QFF PRESSURE IN HPA 1019.0 1021.3 1015.5 1017.5 1014.2 1011.3 1010.9 1010.4 1016.1 1024.2 1022.4 1018.6 1016.8 MAX. QFF PRESSURE IN HPA 1036.7 1035.6 1028.7 1027.7 1024.6 1018.5 1018.3 1016.7 1023.1 1032.5 1039.5 1036.5 1039.5 DAY 21 1 23 1 13 6 11 8 24 28 30 1 MIN. QFF PRESSURE IN HPA 1007.1 1009.7 1004.5 1003.9 1001.7 1004.0 1003.8 1003.1 1009.0 1014.5 1008.0 1006.0 1001.7 DAY 10 10 19 19 23 2 6 18 22 1 3 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.7 1024.5 1019.3 1020.7 1016.9 1014.1 1013.4 1013.2 1019.1 1027.7 1025.7 1022.3 1020.0 MAX. QFE PRESSURE IN HPA 1039.0 1037.4 1032.4 1030.7 1027.5 1021.6 1020.9 1019.7 1026.9 1036.2 1043.2 1039.8 1043.2 DAY 21 1 23 1 13 6 10 8 23 28 30 1 MIN. QFE PRESSURE IN HPA 1010.5 1012.3 1005.4 1004.8 1004.7 1005.6 1006.2 1006.1 1012.5 1018.4 1010.6 1007.7 1004.7 DAY 2 10 19 19 23 2 6 15 5 2 3 23 MEAN QNH PRESSURE IN HPA 1019.9 1021.7 1016.4 1017.9 1014.1 1011.2 1010.6 1010.4 1016.3 1024.8 1022.9 1019.5 1017.1 MAX. QNH PRESSURE IN HPA 1036.1 1034.5 1029.6 1027.9 1024.7 1018.8 1018.1 1016.9 1024.1 1033.3 1040.3 1036.9 1040.3 DAY 21 1 23 1 13 6 10 8 23 28 30 1 MIN. QNH PRESSURE IN HPA 1007.7 1009.5 1002.6 1002.0 1001.9 1002.8 1003.4 1003.3 1009.7 1015.6 1007.8 1004.9 1001.9 DAY 2 10 19 19 23 2 6 15 5 2 3 23 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1021.7 1023.8 1018.8 1020.3 1016.7 1013.8 1013.2 1012.8 1018.4 1027.1 1024.6 1020.8 1019.3 MAX. QFE PRESSURE IN HPA 1037.1 1034.4 1031.5 1030.2 1027.5 1021.1 1020.9 1019.3 1026.5 1035.2 1041.9 1037.9 1041.9 DAY 20 1 23 1 13 6 10 8 23 28 29 1 MIN. QFE PRESSURE IN HPA 1008.7 1009.9 1002.8 1001.6 1003.9 1004.8 1005.3 1005.6 1011.0 1016.6 1007.4 1004.8 1001.6 DAY 2 10 19 19 23 2 6 18 5 2 3 23 MEAN QNH PRESSURE IN HPA 1018.9 1021.0 1016.0 1017.4 1013.8 1011.0 1010.4 1010.0 1015.6 1024.2 1021.8 1018.0 1016.5 MAX. QNH PRESSURE IN HPA 1034.2 1031.5 1028.7 1027.4 1024.7 1018.3 1018.1 1016.5 1023.7 1032.3 1039.0 1035.0 1039.0 DAY 20 1 23 1 13 6 10 8 23 28 29 1 MIN. QNH PRESSURE IN HPA 1005.9 1007.1 1000.0 998.8 1001.1 1002.0 1002.5 1002.8 1008.2 1013.8 1004.6 1002.0 998.8 DAY 2 10 19 19 23 2 6 18 5 2 3 23 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1021.3 1022.4 1018.1 1019.7 1015.8 1013.3 1012.4 1012.0 1017.7 1026.6 1024.1 1020.3 1018.7 MAX. QFE PRESSURE IN HPA 1037.3 1034.0 1031.3 1029.1 1026.4 1019.7 1021.5 1017.7 1026.5 1035.2 1041.4 1035.9 1041.4 DAY 20 6 22 1 13 5 10 8 23 26 29 1 MIN. QFE PRESSURE IN HPA 1008.2 1006.9 1000.2 1002.5 1003.8 1006.8 1004.4 1004.5 1009.2 1015.0 1008.7 1006.7 1000.2 DAY 2 25 19 19 23 18 6 18 5 2 3 23 MEAN QNH PRESSURE IN HPA 1018.5 1019.6 1015.3 1016.9 1013.0 1010.5 1009.6 1009.2 1014.9 1023.8 1021.3 1017.5 1015.8 MAX. QNH PRESSURE IN HPA 1034.4 1031.1 1028.5 1026.3 1023.6 1016.9 1018.7 1014.9 1023.7 1032.3 1038.5 1033.0 1038.5 DAY 20 6 22 1 13 5 10 8 23 26 29 1 MIN. QNH PRESSURE IN HPA 1005.4 1004.1 997.4 999.7 1001.0 1004.0 1001.6 1001.7 1006.4 1012.2 1005.9 1003.9 997.4 DAY 2 25 19 19 23 18 6 18 5 2 3 23 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1021.5 1022.6 1018.3 1019.7 1015.3 1012.7 1011.9 1011.8 1017.7 1026.7 1024.6 1020.9 1018.6 MAX. QFE PRESSURE IN HPA 1038.2 1034.2 1031.9 1028.1 1024.5 1020.2 1021.5 1018.1 1026.9 1035.7 1041.9 1035.7 1041.9 DAY 20 6 22 6 13 5 10 27 23 26 29 1 MIN. QFE PRESSURE IN HPA 1008.7 1006.8 998.5 1003.5 1002.8 1006.2 1003.1 1004.5 1007.8 1013.9 1008.8 1007.0 998.5 DAY 2 25 19 19 23 18 6 18 5 2 3 23 MEAN QNH PRESSURE IN HPA 1018.7 1019.8 1015.5 1016.9 1012.5 1009.9 1009.1 1009.0 1014.9 1023.9 1021.8 1018.1 1015.8 MAX. QNH PRESSURE IN HPA 1035.3 1031.3 1029.1 1025.3 1021.7 1017.4 1018.7 1015.3 1024.1 1032.8 1039.0 1032.8 1039.0 DAY 20 6 22 6 13 5 10 27 23 26 29 1 MIN. QNH PRESSURE IN HPA 1005.9 1004.0 995.7 1000.7 1000.0 1003.4 1000.3 1001.7 1005.0 1011.1 1006.0 1004.2 995.7 DAY 2 25 19 19 23 18 6 18 5 2 3 23 MEAN QFF PRESSURE IN HPA 1018.9 1020.0 1015.5 1017.2 1013.0 1010.3 1009.6 1009.4 1015.2 1024.2 1022.1 1018.2 1016.1 MAX. QFF PRESSURE IN HPA 1035.6 1031.6 1029.3 1025.5 1022.0 1017.7 1019.0 1015.6 1024.4 1033.1 1039.3 1033.1 1039.3 DAY 20 6 22 6 13 5 10 27 23 26 29 1 MIN. QFF PRESSURE IN HPA 1006.1 1004.3 996.0 1001.0 1000.4 1003.8 1000.7 1002.1 1005.4 1011.4 1006.3 1004.5 996.0 DAY 2 25 19 19 23 18 6 18 5 2 3 23 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.4 7.3 9.5 14.3 18.4 25.4 26.2 24.9 22.9 19.3 14.2 11.0 16.7 MINIMUN AIR TEMPERATURE (C) 3.5 3.8 6.2 10.9 15.1 20.4 22.2 21.5 19.2 15.3 9.7 6.4 12.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 14 26 23 7 0 0 0 70 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 1 1 0 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS LOWEST(C) 0.0 -0.8 0.6 3.5 10.0 15.6 17.0 16.0 14.2 10.0 2.5 1.0 -0.8 DAY 1 7 7 6 2 20 28 27 22 23 16 29 MAXIMUM AIR TEMPERATURE (C) 9.9 9.7 12.3 16.7 20.4 28.0 28.7 27.3 25.4 22.1 17.5 14.1 19.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 4 8 2 0 0 0 0 14 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 13.0 16.6 26.4 24.0 25.3 31.4 30.6 30.2 28.5 24.6 24.6 18.2 31.4 DAY 28 22 3 23 19 14 6 8 9 8 8 11 DIF. BETWEEN (MAX.-MIN.) (C) 6.4 5.9 6.1 5.8 5.3 7.6 6.5 5.8 6.2 6.8 7.8 7.7 6.4 MEAN DAILY TEMP. (MDT) (C) 6.7 6.7 9.3 13.8 17.8 24.2 25.4 24.4 22.3 18.7 13.6 10.3 16.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 3.2 96.5 137.6 106.1 44.8 1.0 0.0 0.0 389.3 HEATING DEG. DAYS(BASE 18 0C) 349.6 326.8 270.9 127.1 44.8 0.0 0.0 0.0 0.0 13.6 133.8 240.1 1506.6 DEWPOINT (MEAN C) 5.1 5.0 7.3 11.3 15.3 21.3 22.3 22.0 20.3 16.5 11.5 8.6 13.9 MIXING RATIO (G/KG) 5.43 5.41 6.38 8.47 10.96 16.14 17.11 16.74 14.99 11.75 8.63 7.07 10.75 VAPOUR PRESSURE (HPA) 8.86 8.81 10.32 13.66 17.59 25.52 27.03 26.52 23.91 18.92 13.95 11.45 17.21 SATURATION DEF. (HPA) 1.50 1.60 1.70 3.01 4.04 7.27 7.25 5.24 4.32 3.88 2.60 1.99 3.70 RELATIVE HUMIDITY (MEAN %) 86 86 87 83 83 79 80 84 85 84 85 86 84 RELATIVE HUMIDITY (MAX. %) 95 95 96 94 93 91 91 93 95 94 94 94 94 RELATIVE HUMIDITY (MIN. %) 76 77 78 73 75 69 72 78 78 75 75 77 75 RELATIVE HUMIDITY (MEAN% 03UTC) 94 94 95 93 93 90 91 93 94 93 93 92 93 RELATIVE HUMIDITY (MEAN% 09UTC) 77 79 80 80 79 73 75 79 80 77 78 79 78 RELATIVE HUMIDITY (MEAN% 15UTC) 92 90 90 83 81 80 79 85 88 89 90 90 86 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 123.1 79.3 37.4 26.3 66.1 100.0 56.7 114.2 87.1 134.3 144.3 106.2 1075.0 DAYS WITH PRECIPITATION >=10 5 2 1 0 2 1 2 4 3 3 5 1 29 DAYS WITH PRECIPITATION >= 5 7 8 2 3 4 2 5 9 5 4 8 4 61 DAYS WITH PRECIPITATION >= 1 8 10 9 8 6 3 10 10 7 6 11 5 93 DAYS WITH PRECIPITATION 11 11 10 10 8 6 12 14 16 10 13 11 132 GREATEST DAILY PRECIPITATION 36.0 28.3 16.0 7.0 35.0 91.0 12.0 24.0 39.0 58.0 29.0 81.0 91.0 DAY 19 3 5 8 2 24 16 5 13 22 30 28 DAY WITH THUNDER STORM 0 0 0 0 0 4 0 1 1 0 1 0 7 DAYS WITH SNOW OR SLEET 0 1 0 0 0 0 0 0 0 0 0 2 3 DAYS WITH DUST 0 0 0 0 0 0 1 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 270 90 90 315 45 90 315 270 315 45 270 270 270 PREVAILING WIND SPEED(KNOTS) 8.1 6.4 6.7 7.7 5.3 5.9 6.3 6.6 6.3 5.4 7.5 9.0 7.5 PREVAILING WIND PERCENT 21.9 13.1 17.4 15.3 15.5 14.7 15.5 16.1 17.3 8.4 16.7 9.0 10.9 CALMS PERCENT OF WIND 60.0 54.5 46.5 48.0 40.0 46.7 45.8 49.7 48.0 58.4 56.7 68.4 51.9 NO. OF WIND OBSERVATION 155 145 155 150 155 150 155 155 150 154 150 155 1829 VECTOR WIND DIRECTION (MEAN) 290 3 336 331 6 35 336 318 330 3 286 279 334 VECTOR WIND MAGNITUDE(KNOTS) 1.7 0.9 1.0 1.8 1.8 1.4 1.2 1.5 1.5 0.6 0.8 0.7 1.1 WIND STEADINESES (MEAN %) 58.6 31.0 24.4 50.0 48.6 50.0 44.4 51.7 51.7 27.3 29.6 33.3 36.7 WIND SPEED (MEAN KNOTS) 2.9 2.9 4.1 3.6 3.7 2.8 2.7 2.9 2.9 2.2 2.7 2.1 3.0 FASTEST WIND DIRECTION 280 280 210 80 280 100 300 310 270 320 270 310 210 FASTEST WIND SPEED (KNOTS) 16 16 29 14 19 14 12 14 16 12 19 19 29 DAY 19 2 3 3 9 14 7 4 12 5 28 27 DAYS WITH SKY CLEAR (0-2)/8 4 4 4 7 6 11 8 3 3 8 8 6 72 DAYS WITH P.CLOUDY (3-6)/8 9 10 8 8 16 17 10 10 15 13 10 13 139 DAYS WITH CLOUDY (7-8)/8 18 15 19 15 9 2 13 18 12 10 12 12 155 DAYS WITH VISIBILITY =< 2 KM 7 6 9 2 6 1 1 5 1 0 3 1 42 DURATION OF SUNSHINE HOURS 82.1 103.1 95.2 144.8 199.7 242.4 153.7 89.1 93.9 120.5 113.4 86.2 1524.1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1023.5 1023.1 1017.1 1019.0 1017.2 1009.9 1010.3 1012.6 1017.2 1021.5 1020.7 1019.1 1017.6 MAX. QFE PRESSURE IN HPA 1033.6 1039.1 1031.6 1035.4 1030.2 1015.9 1016.6 1022.0 1028.0 1032.3 1034.0 1029.6 1039.1 DAY-HOUR 2-15 6- 6 17- 3 8- 6 4-12 27- 6 27- 6 21- 6 21- 6 16-15 5-15 5- 6 MIN. QFE PRESSURE IN HPA 1011.1 1003.0 997.9 1004.9 1005.4 998.7 1005.8 1003.8 1004.9 1006.3 1008.3 997.0 997.0 DAY-HOUR 28-15 29-15 3- 9 23- 3 28- 3 14-15 8-15 28-15 9- 3 30-15 8-15 26- 3 MEAN QNH PRESSURE IN HPA 1020.7 1020.2 1014.3 1016.2 1014.4 1007.1 1007.5 1009.8 1014.4 1018.7 1017.9 1016.3 1014.8 MAX. QNH PRESSURE IN HPA 1030.8 1036.2 1028.8 1032.5 1027.4 1013.1 1013.8 1019.2 1025.2 1029.5 1031.1 1026.8 1036.2 DAY-HOUR 2-15 6- 6 17- 3 8- 6 4-12 27- 6 27- 6 21- 6 21- 6 16-15 5-15 5- 6 MIN. QNH PRESSURE IN HPA 1008.3 1000.2 995.1 1002.1 1002.6 995.9 1003.0 1001.0 1002.1 1003.5 1005.5 994.2 994.2 DAY-HOUR 28-15 29-15 3- 9 23- 3 28- 3 14-15 8-15 28-15 9- 3 30-15 8-15 26- 3 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1023.3 1023.0 1016.9 1018.7 1017.2 1010.3 1010.6 1013.0 1017.5 1021.6 1020.8 1018.9 1017.7 MAX. QFE PRESSURE IN HPA 1031.9 1037.9 1031.6 1033.2 1029.3 1015.1 1016.0 1021.7 1026.7 1030.5 1032.6 1028.6 1037.9 DAY 11 6 17 8 5 1 27 21 21 16 6 5 MIN. QFE PRESSURE IN HPA 1012.0 1007.2 998.7 1004.9 1005.4 1003.6 1006.4 1004.7 1004.9 1010.6 1009.5 997.0 997.0 DAY 31 29 3 23 28 15 15 29 9 20 28 26 MEAN QNH PRESSURE IN HPA 1020.4 1020.2 1014.1 1015.9 1014.4 1007.5 1007.8 1010.2 1014.7 1018.8 1018.0 1016.1 1014.8 MAX. QNH PRESSURE IN HPA 1029.1 1035.0 1028.8 1030.4 1026.5 1012.3 1013.2 1018.9 1023.9 1027.7 1029.8 1025.8 1035.0 DAY 11 6 17 8 5 1 27 21 21 16 6 5 MIN. QNH PRESSURE IN HPA 1009.2 1004.4 995.9 1002.1 1002.6 1000.8 1003.6 1001.9 1002.1 1007.8 1006.7 994.2 994.2 DAY 31 29 3 23 28 15 15 29 9 20 28 26 MEAN QFF PRESSURE IN HPA 1020.7 1020.4 1014.3 1016.3 1014.7 1007.9 1008.2 1010.6 1015.0 1019.1 1018.3 1016.4 1015.2 MAX. QFF PRESSURE IN HPA 1029.3 1035.2 1029.0 1030.6 1026.7 1012.6 1013.5 1019.3 1024.2 1028.0 1030.0 1026.0 1035.2 DAY 11 6 17 8 5 1 27 21 21 16 6 5 MIN. QFF PRESSURE IN HPA 1009.4 1004.6 996.2 1002.4 1003.0 1001.2 1004.0 1002.3 1002.5 1008.1 1007.0 994.5 994.5 DAY 31 29 3 23 28 15 15 29 9 20 28 26 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1024.3 1023.9 1017.6 1019.6 1017.6 1010.7 1010.9 1013.3 1018.0 1022.4 1021.6 1019.9 1018.3 MAX. QFE PRESSURE IN HPA 1033.4 1039.1 1031.2 1035.4 1030.2 1015.9 1016.6 1022.0 1028.0 1032.1 1032.8 1029.6 1039.1 DAY 11 6 17 8 5 27 27 21 21 16 6 5 MIN. QFE PRESSURE IN HPA 1013.5 1007.8 998.7 1005.4 1005.8 1004.1 1006.3 1005.0 1005.3 1009.5 1009.0 1002.0 998.7 DAY 28 29 3 23 28 15 15 29 9 20 28 26 MEAN QNH PRESSURE IN HPA 1021.5 1021.1 1014.8 1016.8 1014.8 1007.9 1008.1 1010.5 1015.2 1019.6 1018.8 1017.1 1015.5 MAX. QNH PRESSURE IN HPA 1030.6 1036.2 1028.4 1032.5 1027.4 1013.1 1013.8 1019.2 1025.2 1029.3 1030.0 1026.8 1036.2 DAY 11 6 17 8 5 27 27 21 21 16 6 5 MIN. QNH PRESSURE IN HPA 1010.7 1005.0 995.9 1002.6 1003.0 1001.3 1003.5 1002.2 1002.5 1006.7 1006.2 999.2 995.9 DAY 28 29 3 23 28 15 15 29 9 20 28 26 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1023.5 1023.1 1017.1 1019.4 1017.4 1010.2 1010.7 1012.7 1017.4 1021.5 1020.6 1018.8 1017.7 MAX. QFE PRESSURE IN HPA 1032.7 1037.9 1029.6 1035.2 1030.2 1015.7 1016.0 1021.5 1026.7 1032.1 1031.9 1028.8 1037.9 DAY 17 6 17 8 5 27 27 21 21 16 5 23 MIN. QFE PRESSURE IN HPA 1011.9 1005.4 997.9 1007.9 1006.2 1002.7 1005.8 1004.6 1007.4 1008.3 1009.8 1002.7 997.9 DAY 28 29 3 23 28 15 15 29 9 30 8 27 MEAN QNH PRESSURE IN HPA 1020.7 1020.3 1014.3 1016.6 1014.6 1007.4 1007.8 1009.9 1014.6 1018.7 1017.8 1016.0 1014.9 MAX. QNH PRESSURE IN HPA 1029.9 1035.0 1026.8 1032.3 1027.4 1012.9 1013.2 1018.7 1023.9 1029.3 1029.1 1026.0 1035.0 DAY 17 6 17 8 5 27 27 21 21 16 5 23 MIN. QNH PRESSURE IN HPA 1009.1 1002.6 995.1 1005.1 1003.4 999.9 1003.0 1001.8 1004.6 1005.5 1007.0 999.9 995.1 DAY 28 29 3 23 28 15 15 29 9 30 8 27 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 1023.1 1022.5 1016.8 1018.7 1016.8 1009.3 1010.0 1012.1 1016.7 1020.9 1020.1 1018.6 1017.1 MAX. QFE PRESSURE IN HPA 1032.4 1036.7 1027.9 1034.6 1030.2 1015.1 1015.5 1020.1 1025.6 1032.1 1033.6 1028.5 1036.7 DAY 2 6 24 8 4 7 26 21 30 16 5 23 MIN. QFE PRESSURE IN HPA 1011.5 1003.9 998.3 1008.6 1006.1 1000.2 1006.4 1004.0 1007.3 1006.6 1008.5 1005.0 998.3 DAY 28 29 3 22 28 14 15 29 4 30 8 27 MEAN QNH PRESSURE IN HPA 1020.2 1019.6 1014.0 1015.9 1014.0 1006.5 1007.2 1009.3 1013.8 1018.1 1017.2 1015.8 1014.3 MAX. QNH PRESSURE IN HPA 1029.6 1033.8 1025.1 1031.7 1027.4 1012.3 1012.7 1017.3 1022.8 1029.3 1030.8 1025.7 1033.8 DAY 2 6 24 8 4 7 26 21 30 16 5 23 MIN. QNH PRESSURE IN HPA 1008.7 1001.1 995.5 1005.8 1003.3 997.4 1003.6 1001.2 1004.5 1003.8 1005.7 1002.2 995.5 DAY 28 29 3 22 28 14 15 29 4 30 8 27 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1023.6 1023.0 1017.0 1018.6 1016.9 1008.8 1009.5 1011.8 1016.6 1021.1 1020.6 1019.2 1017.2 MAX. QFE PRESSURE IN HPA 1033.6 1036.9 1028.2 1034.3 1030.2 1014.9 1016.2 1019.4 1026.1 1032.3 1034.0 1029.0 1036.9 DAY 2 6 16 8 4 7 26 21 30 16 5 21 MIN. QFE PRESSURE IN HPA 1011.1 1003.0 999.5 1009.0 1007.2 998.7 1005.8 1003.8 1006.8 1006.3 1008.3 1005.2 998.7 DAY 28 29 3 22 28 14 8 28 8 30 8 25 MEAN QNH PRESSURE IN HPA 1020.8 1020.1 1014.2 1015.7 1014.1 1006.0 1006.7 1009.0 1013.8 1018.3 1017.7 1016.4 1014.4 MAX. QNH PRESSURE IN HPA 1030.8 1034.0 1025.4 1031.4 1027.4 1012.1 1013.4 1016.6 1023.3 1029.5 1031.1 1026.2 1034.0 DAY 2 6 16 8 4 7 26 21 30 16 5 21 MIN. QNH PRESSURE IN HPA 1008.3 1000.2 996.7 1006.2 1004.4 995.9 1003.0 1001.0 1004.0 1003.5 1005.5 1002.4 995.9 DAY 28 29 3 22 28 14 8 28 8 30 8 25 MEAN QFF PRESSURE IN HPA 1021.0 1020.4 1014.5 1016.1 1014.5 1006.4 1007.1 1009.4 1014.2 1018.6 1018.0 1016.6 1014.7 MAX. QFF PRESSURE IN HPA 1031.0 1034.2 1025.6 1031.7 1027.6 1012.5 1013.7 1017.0 1023.6 1029.8 1031.5 1026.4 1034.2 DAY 2 6 16 8 4 7 26 21 30 16 5 21 MIN. QFF PRESSURE IN HPA 1008.5 1000.5 997.0 1006.5 1004.8 996.3 1003.4 1001.4 1004.4 1003.8 1005.8 1002.6 996.3 DAY 28 29 3 22 28 14 8 28 8 30 8 25 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.7 6.6 10.3 14.4 18.9 23.1 25.9 25.6 22.2 19.2 13.9 9.9 16.4 MINIMUN AIR TEMPERATURE (C) 2.2 1.6 7.0 11.1 15.3 19.6 22.5 22.6 19.0 15.7 9.7 6.9 12.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 6 30 27 12 1 0 0 76 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 5 11 0 0 0 0 0 0 0 0 0 0 16 TEMPERATURE RECORDS LOWEST(C) -0.5 -1.0 2.6 6.4 10.0 17.0 20.2 20.0 13.0 10.0 4.2 1.8 -1.0 DAY 27 4 13 1 2 5 30 19 24 25 23 8 MAXIMUM AIR TEMPERATURE (C) 9.7 9.4 13.1 17.7 22.9 26.6 29.7 29.3 26.3 22.8 19.0 13.2 20.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 1 15 14 4 1 0 0 37 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 15.5 19.4 20.5 22.4 30.8 30.6 31.6 32.0 30.5 30.3 26.7 20.2 32.0 DAY 18 28 25 28 10 11 29 1 2 2 27 11 DIF. BETWEEN (MAX.-MIN.) (C) 7.5 7.8 6.1 6.6 7.6 7.0 7.2 6.7 7.3 7.1 9.3 6.3 7.3 MEAN DAILY TEMP. (MDT) (C) 6.0 5.5 10.0 14.4 19.1 23.1 26.1 25.9 22.6 19.2 14.3 10.0 16.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 8.4 64.1 157.1 153.3 67.7 9.7 0.0 0.0 460.5 HEATING DEG. DAYS(BASE 18 0C) 372.3 350.4 247.0 107.5 11.4 0.0 0.0 0.0 0.1 19.5 110.2 246.9 1465.3 DEWPOINT (MEAN C) 2.9 2.6 7.8 11.8 15.6 19.4 22.7 22.8 19.4 17.0 10.9 7.8 13.4 MIXING RATIO (G/KG) 4.67 4.58 6.61 8.61 11.13 14.23 17.51 17.66 14.35 12.27 8.22 6.59 10.54 VAPOUR PRESSURE (HPA) 7.64 7.50 10.71 13.93 17.87 22.65 27.70 27.92 22.85 19.71 13.31 10.71 16.88 SATURATION DEF. (HPA) 2.38 2.49 1.96 2.72 4.33 5.92 6.11 5.32 4.58 2.95 3.00 1.63 3.62 RELATIVE HUMIDITY (MEAN %) 78 77 86 85 82 81 83 85 85 88 84 88 84 RELATIVE HUMIDITY (MAX. %) 88 90 95 95 94 93 94 94 95 96 95 96 94 RELATIVE HUMIDITY (MIN. %) 68 67 76 73 68 67 70 72 72 77 65 76 71 RELATIVE HUMIDITY (MEAN% 03UTC) 82 88 92 92 87 86 89 91 90 93 90 91 89 RELATIVE HUMIDITY (MEAN% 09UTC) 71 68 81 78 74 70 74 77 75 80 71 80 75 RELATIVE HUMIDITY (MEAN% 15UTC) 85 82 88 81 80 74 78 83 83 90 89 92 84 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 124.4 97.0 101.2 9.4 18.7 0.4 15.1 65.8 274.5 201.2 61.1 146.0 1114.8 DAYS WITH PRECIPITATION >=10 4 3 5 0 0 0 0 2 3 7 2 4 30 DAYS WITH PRECIPITATION >= 5 5 6 5 0 2 0 1 3 3 9 5 8 47 DAYS WITH PRECIPITATION >= 1 8 6 7 4 3 0 4 6 7 10 9 11 75 DAYS WITH PRECIPITATION 10 7 10 6 8 2 6 11 9 15 11 16 111 GREATEST DAILY PRECIPITATION 37.0 30.0 37.0 3.6 6.9 0.3 5.0 34.0 119.0 61.0 16.3 41.0 119.0 DAY 3 12 16 8 18 22 10 18 15 31 7 1 DAY WITH THUNDER STORM 0 0 0 0 0 0 1 2 0 1 2 0 6 DAYS WITH SNOW OR SLEET 2 3 0 0 0 0 0 0 0 0 0 0 5 DAYS WITH DUST 0 0 0 1 0 0 0 0 0 0 0 2 3 WIND DIRECTION (PREVAILING) 270 90 270 315 90 315 315 315 270 270 90 270 270 PREVAILING WIND SPEED(KNOTS) 8.3 6.8 8.4 7.8 5.3 7.8 7.3 6.8 6.5 8.4 5.4 7.7 7.5 PREVAILING WIND PERCENT 23.9 17.1 16.6 10.4 10.9 14.6 12.5 11.3 10.4 14.5 6.7 24.2 11.6 CALMS PERCENT OF WIND 45.8 46.4 43.9 54.6 52.0 56.3 56.0 63.3 63.3 56.0 75.4 53.2 56.4 NO. OF WIND OBSERVATION 155 140 187 240 248 240 248 248 240 248 240 248 2682 VECTOR WIND DIRECTION (MEAN) 279 45 300 347 340 323 320 313 306 293 310 276 309 VECTOR WIND MAGNITUDE(KNOTS) 2.0 0.7 1.5 1.0 0.9 1.6 1.6 1.2 1.1 1.1 0.1 1.7 1.1 WIND STEADINESES (MEAN %) 54.1 21.2 39.5 37.0 30.0 55.2 66.7 63.2 50.0 39.3 7.1 58.6 39.3 WIND SPEED (MEAN KNOTS) 3.7 3.3 3.8 2.7 3.0 2.9 2.4 1.9 2.2 2.8 1.4 2.9 2.8 FASTEST WIND DIRECTION 270 270 300 300 300 290 310 300 270 270 90 280 270 FASTEST WIND SPEED (KNOTS) 17 16 21 19 25 23 19 16 23 29 16 17 29 DAY 3 2 31 6 7 17 1 1 14 2 6 1 DAYS WITH SKY CLEAR (0-2)/8 11 14 6 11 14 18 15 7 8 8 12 6 130 DAYS WITH P.CLOUDY (3-6)/8 11 5 12 12 6 8 11 17 14 12 12 9 129 DAYS WITH CLOUDY (7-8)/8 9 9 13 7 11 4 5 7 8 11 6 16 106 DAYS WITH VISIBILITY =< 2 KM 0 1 8 3 1 0 1 2 3 3 2 3 27 DURATION OF SUNSHINE HOURS 136.4 162.6 119.1 175.6 195.9 235.3 239.3 155.9 136.1 134.0 159.2 74.9 1924.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1025.3 1027.8 1018.7 1020.6 1017.6 1012.8 1011.9 1011.7 1015.3 1020.3 1020.9 1022.1 1018.8 MAX. QFE PRESSURE IN HPA 1037.7 1037.7 1028.2 1028.5 1027.0 1020.0 1020.2 1022.3 1030.2 1033.3 1033.1 1029.6 1037.7 DAY-HOUR 22- 6 3- 3 12- 6 8- 6 1- 0 2- 6 10- 3 19- 6 22- 6 23- 6 21-18 20- 6 MIN. QFE PRESSURE IN HPA 1009.1 1014.9 1003.5 1011.7 1002.9 1004.8 1002.4 1002.2 1005.9 1004.8 1008.7 1009.5 1002.2 DAY-HOUR 1- 9 23- 3 27- 0 28-15 6-21 10-15 31-21 1- 0 1-18 2- 0 27-21 11- 0 MEAN QNH PRESSURE IN HPA 1022.4 1024.9 1015.9 1017.8 1014.8 1010.0 1009.1 1008.9 1012.4 1017.5 1018.1 1019.3 1015.9 MAX. QNH PRESSURE IN HPA 1034.8 1034.8 1025.4 1025.7 1024.2 1017.2 1017.4 1019.5 1027.4 1030.5 1030.3 1026.8 1034.8 DAY-HOUR 22- 6 3- 3 12- 6 8- 6 1- 0 2- 6 10- 3 19- 6 22- 6 23- 6 21-18 20- 6 MIN. QNH PRESSURE IN HPA 1006.3 1012.1 1000.7 1008.9 1000.1 1002.0 999.6 999.4 1003.1 1002.0 1005.9 1006.7 999.4 DAY-HOUR 1- 9 23- 3 27- 0 28-15 6-21 10-15 31-21 1- 0 1-18 2- 0 27-21 11- 0 MEAN QFF PRESSURE IN HPA ****** ****** 1014.8 1018.1 1015.1 1010.4 1009.5 1009.3 1012.8 1017.8 1018.4 1019.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1025.5 1025.9 1024.5 1017.5 1017.8 1019.8 1027.7 1030.7 1030.5 1027.0 ****** DAY-HOUR **-** **-** 11-15 8- 6 1- 0 2- 6 10- 3 19- 6 22- 6 23- 6 21-18 20- 6 MIN. QFF PRESSURE IN HPA ****** ****** 1001.0 1009.2 1000.5 1002.4 1000.0 999.8 1003.5 1002.4 1006.3 1007.0 ****** DAY-HOUR **-** **-** 27- 0 28-15 6-21 10-15 31-21 1- 0 1-18 2- 0 27-21 11- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** 1019.8 1017.4 1012.9 1011.9 1011.4 1015.0 1020.0 1020.6 1021.9 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 1027.9 1027.0 1019.4 1019.4 1021.7 1027.8 1032.6 1030.8 1028.2 ****** DAY ** ** ** 8 1 2 10 19 23 24 22 20 MIN. QFE PRESSURE IN HPA ****** ****** ****** 1012.1 1004.1 1005.0 1006.2 1002.2 1007.2 1004.8 1010.2 1009.5 ****** DAY ** ** ** 15 7 10 6 1 2 2 28 11 MEAN QNH PRESSURE IN HPA ****** ****** ****** 1017.0 1014.6 1010.1 1009.1 1008.6 1012.2 1017.2 1017.8 1019.1 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1025.1 1024.2 1016.6 1016.6 1018.9 1025.0 1029.8 1028.0 1025.4 ****** DAY ** ** ** 8 1 2 10 19 23 24 22 20 MIN. QNH PRESSURE IN HPA ****** ****** ****** 1009.3 1001.3 1002.2 1003.4 999.4 1004.4 1002.0 1007.4 1006.7 ****** DAY ** ** ** 15 7 10 6 1 2 2 28 11 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1017.3 1014.9 1010.4 1009.5 1009.0 1012.6 1017.5 1018.1 1019.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1025.3 1024.5 1016.9 1017.0 1019.2 1025.3 1030.1 1028.2 1025.7 ****** DAY ** ** ** 8 1 2 10 19 23 24 22 20 MIN. QFF PRESSURE IN HPA ****** ****** ****** 1009.6 1001.7 1002.6 1003.8 999.8 1004.8 1002.4 1007.7 1007.0 ****** DAY ** ** ** 15 7 10 6 1 2 2 28 11 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1025.3 1027.6 1019.1 1020.5 1018.1 1013.4 1012.4 1011.9 1015.7 1020.5 1020.8 1022.3 1019.0 MAX. QFE PRESSURE IN HPA 1036.7 1037.7 1027.7 1028.0 1026.8 1019.7 1020.2 1021.8 1028.9 1032.9 1029.7 1028.7 1037.7 DAY 22 3 12 8 1 2 10 19 22 24 22 20 MIN. QFE PRESSURE IN HPA 1011.9 1014.9 1006.1 1014.0 1006.3 1005.5 1006.4 1002.5 1008.9 1004.9 1011.3 1009.5 1002.5 DAY 17 23 27 15 7 10 31 1 10 2 27 11 MEAN QNH PRESSURE IN HPA 1022.5 1024.7 1016.3 1017.7 1015.3 1010.6 1009.6 1009.1 1012.9 1017.7 1017.9 1019.5 1016.1 MAX. QNH PRESSURE IN HPA 1033.8 1034.8 1024.9 1025.2 1024.0 1016.9 1017.4 1019.0 1026.1 1030.1 1026.9 1025.9 1034.8 DAY 22 3 12 8 1 2 10 19 22 24 22 20 MIN. QNH PRESSURE IN HPA 1009.1 1012.1 1003.3 1011.2 1003.5 1002.7 1003.6 999.7 1006.1 1002.1 1008.5 1006.7 999.7 DAY 17 23 27 15 7 10 31 1 10 2 27 11 MEAN QFF PRESSURE IN HPA 1022.7 1024.9 1016.5 1018.0 1015.7 1011.0 1010.0 1009.5 1013.2 1018.0 1018.2 1019.7 1016.5 MAX. QFF PRESSURE IN HPA 1034.0 1035.0 1025.1 1025.4 1024.3 1017.2 1017.8 1019.3 1026.4 1030.3 1027.1 1026.1 1035.0 DAY 22 3 12 8 1 2 10 19 22 24 22 20 MIN. QFF PRESSURE IN HPA 1009.3 1012.3 1003.6 1011.5 1003.9 1003.1 1004.0 1000.1 1006.5 1002.5 1008.8 1007.0 1000.1 DAY 17 23 27 15 7 10 31 1 10 2 27 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1026.2 1028.6 1019.9 1021.2 1018.5 1013.6 1012.7 1012.4 1016.3 1021.2 1021.8 1023.1 1019.6 MAX. QFE PRESSURE IN HPA 1037.7 1037.7 1028.2 1028.5 1026.7 1020.0 1019.6 1022.3 1030.2 1033.3 1030.6 1029.6 1037.7 DAY 22 3 12 8 1 2 10 19 22 23 8 20 MIN. QFE PRESSURE IN HPA 1010.1 1016.7 1008.1 1013.6 1005.9 1006.5 1006.3 1003.1 1009.4 1005.3 1011.6 1011.1 1003.1 DAY 1 23 27 15 7 10 5 1 1 2 27 11 MEAN QNH PRESSURE IN HPA 1023.3 1025.7 1017.1 1018.4 1015.7 1010.8 1009.9 1009.6 1013.5 1018.4 1019.0 1020.3 1016.8 MAX. QNH PRESSURE IN HPA 1034.8 1034.8 1025.4 1025.7 1023.9 1017.2 1016.8 1019.5 1027.4 1030.5 1027.8 1026.8 1034.8 DAY 22 3 12 8 1 2 10 19 22 23 8 20 MIN. QNH PRESSURE IN HPA 1007.3 1013.9 1005.3 1010.8 1003.1 1003.7 1003.5 1000.3 1006.6 1002.5 1008.8 1008.3 1000.3 DAY 1 23 27 15 7 10 5 1 1 2 27 11 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1018.7 1016.0 1011.2 1010.3 1010.1 1013.9 1018.7 1019.3 1020.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1025.9 1024.2 1017.5 1017.2 1019.8 1027.7 1030.7 1028.1 1027.0 ****** DAY ** ** ** 8 1 2 10 19 22 23 8 20 MIN. QFF PRESSURE IN HPA ****** ****** ****** 1011.1 1003.5 1004.1 1003.9 1000.8 1007.0 1002.9 1009.1 1008.6 ****** DAY ** ** ** 15 7 10 5 1 1 2 27 11 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1025.1 1028.0 1019.7 1021.2 1018.2 1013.3 1012.4 1012.1 1015.6 1020.4 1020.7 1022.1 1019.1 MAX. QFE PRESSURE IN HPA 1036.6 1037.4 1028.1 1028.1 1025.8 1019.3 1019.0 1021.1 1029.1 1032.8 1029.2 1028.5 1037.4 DAY 22 3 12 9 20 2 10 19 22 23 8 20 MIN. QFE PRESSURE IN HPA 1009.1 1017.8 1008.0 1012.4 1005.5 1006.0 1005.1 1003.4 1008.3 1005.2 1009.8 1010.9 1003.4 DAY 1 23 26 15 6 10 31 1 1 2 18 11 MEAN QNH PRESSURE IN HPA 1022.3 1025.2 1016.9 1018.4 1015.4 1010.5 1009.6 1009.3 1012.8 1017.5 1017.9 1019.2 1016.2 MAX. QNH PRESSURE IN HPA 1033.7 1034.5 1025.3 1025.3 1023.0 1016.5 1016.2 1018.3 1026.3 1030.0 1026.4 1025.7 1034.5 DAY 22 3 12 9 20 2 10 19 22 23 8 20 MIN. QNH PRESSURE IN HPA 1006.3 1015.0 1005.2 1009.6 1002.7 1003.2 1002.3 1000.6 1005.5 1002.4 1007.0 1008.1 1000.6 DAY 1 23 26 15 6 10 31 1 1 2 18 11 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1018.7 1015.7 1010.9 1010.1 1009.7 1013.2 1017.9 1018.2 1019.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1025.5 1023.3 1016.8 1016.6 1018.7 1026.6 1030.3 1026.6 1025.9 ****** DAY ** ** ** 9 20 2 10 19 22 23 8 20 MIN. QFF PRESSURE IN HPA ****** ****** ****** 1009.9 1003.1 1003.6 1002.7 1001.0 1005.9 1002.8 1007.3 1008.4 ****** DAY ** ** ** 15 6 10 31 1 1 2 18 11 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1024.6 1027.2 1019.0 1020.5 1017.3 1012.5 1011.6 1011.4 1014.8 1019.6 1020.4 1021.6 1018.4 MAX. QFE PRESSURE IN HPA 1036.5 1036.4 1027.0 1026.9 1025.2 1017.9 1018.7 1021.0 1028.6 1032.4 1028.9 1027.4 1036.5 DAY 21 3 11 8 20 1 10 18 22 23 7 3 MIN. QFE PRESSURE IN HPA 1009.6 1017.4 1006.7 1012.2 1004.5 1005.4 1004.5 1003.2 1006.4 1005.9 1010.7 1011.6 1003.2 DAY 1 27 26 15 6 10 31 1 1 2 18 10 MEAN QNH PRESSURE IN HPA 1021.8 1024.4 1016.2 1017.6 1014.5 1009.7 1008.8 1008.6 1012.0 1016.8 1017.6 1018.8 1015.6 MAX. QNH PRESSURE IN HPA 1033.6 1033.5 1024.2 1024.1 1022.4 1015.1 1015.9 1018.2 1025.8 1029.6 1026.1 1024.6 1033.6 DAY 21 3 11 8 20 1 10 18 22 23 7 3 MIN. QNH PRESSURE IN HPA 1006.8 1014.6 1003.9 1009.4 1001.7 1002.6 1001.7 1000.4 1003.6 1003.1 1007.9 1008.8 1000.4 DAY 1 27 26 15 6 10 31 1 1 2 18 10 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1017.9 1014.8 1010.1 1009.3 1009.0 1012.4 1017.1 1017.9 1019.0 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1024.3 1022.7 1015.4 1016.3 1018.5 1026.1 1029.9 1026.4 1024.8 ****** DAY ** ** ** 9 20 1 10 18 22 23 7 3 MIN. QFF PRESSURE IN HPA ****** ****** ****** 1009.7 1002.1 1003.0 1002.1 1000.8 1004.0 1003.5 1008.2 1009.1 ****** DAY ** ** ** 15 6 10 31 1 1 2 18 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1025.2 1027.6 1019.2 1020.3 1017.0 1012.1 1011.1 1010.9 1014.5 1019.9 1021.1 1022.1 1018.4 MAX. QFE PRESSURE IN HPA 1036.8 1037.1 1028.1 1027.0 1024.9 1017.9 1018.5 1021.2 1028.5 1032.8 1030.1 1028.3 1037.1 DAY 21 3 11 30 20 1 10 18 22 23 7 3 MIN. QFE PRESSURE IN HPA 1011.5 1016.3 1006.1 1011.7 1003.4 1004.8 1003.4 1003.1 1006.0 1006.6 1011.0 1011.6 1003.1 DAY 1 27 26 28 6 10 31 1 1 2 24 10 MEAN QNH PRESSURE IN HPA 1022.4 1024.7 1016.4 1017.5 1014.2 1009.3 1008.2 1008.1 1011.7 1017.0 1018.3 1019.3 1015.6 MAX. QNH PRESSURE IN HPA 1033.9 1034.2 1025.3 1024.2 1022.1 1015.1 1015.7 1018.4 1025.7 1030.0 1027.3 1025.5 1034.2 DAY 21 3 11 30 20 1 10 18 22 23 7 3 MIN. QNH PRESSURE IN HPA 1008.7 1013.5 1003.3 1008.9 1000.6 1002.0 1000.6 1000.3 1003.2 1003.8 1008.2 1008.8 1000.3 DAY 1 27 26 28 6 10 31 1 1 2 24 10 MEAN QFF PRESSURE IN HPA 1022.6 1024.9 1016.7 1017.8 1014.5 1009.6 1008.7 1008.5 1012.1 1017.4 1018.6 1019.5 1015.9 MAX. QFF PRESSURE IN HPA 1034.2 1034.4 1025.5 1024.5 1022.4 1015.4 1016.1 1018.7 1026.0 1030.2 1027.5 1025.7 1034.4 DAY 21 3 11 30 20 1 10 18 22 23 7 3 MIN. QFF PRESSURE IN HPA 1008.9 1013.7 1003.6 1009.2 1001.0 1002.4 1001.0 1000.7 1003.6 1004.2 1008.4 1009.0 1000.7 DAY 1 27 26 28 6 10 31 1 1 2 24 10 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** 1021.1 1017.4 1012.5 1011.7 1011.6 1015.1 1020.6 1021.3 1022.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 1027.5 1024.9 1017.7 1019.3 1021.9 1029.3 1033.1 1033.1 1028.4 ****** DAY ** ** ** 30 20 1 10 18 22 23 21 3 MIN. QFE PRESSURE IN HPA ****** ****** ****** 1012.7 1003.6 1005.3 1003.1 1004.1 1005.9 1005.4 1009.4 1011.2 ****** DAY ** ** ** 17 6 10 31 1 1 1 27 10 MEAN QNH PRESSURE IN HPA ****** ****** ****** 1018.3 1014.6 1009.7 1008.9 1008.8 1012.3 1017.8 1018.5 1019.4 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1024.7 1022.1 1014.9 1016.5 1019.1 1026.5 1030.3 1030.3 1025.6 ****** DAY ** ** ** 30 20 1 10 18 22 23 21 3 MIN. QNH PRESSURE IN HPA ****** ****** ****** 1009.9 1000.8 1002.5 1000.3 1001.3 1003.1 1002.6 1006.6 1008.4 ****** DAY ** ** ** 17 6 10 31 1 1 1 27 10 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1018.6 1014.9 1010.1 1009.3 1009.2 1012.7 1018.1 1018.8 1019.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1025.0 1022.4 1015.2 1016.9 1019.4 1026.8 1030.5 1030.5 1025.8 ****** DAY ** ** ** 30 20 2 10 18 22 23 21 3 MIN. QFF PRESSURE IN HPA ****** ****** ****** 1010.2 1001.2 1002.9 1000.7 1001.8 1003.5 1003.0 1006.9 1008.7 ****** DAY ** ** ** 17 6 10 31 1 1 1 27 10 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** 1020.6 1017.1 1012.6 1011.5 1011.7 1015.0 1020.6 1020.8 1021.8 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 1027.7 1024.5 1019.2 1019.2 1022.1 1028.9 1033.0 1032.0 1027.9 ****** DAY ** ** ** 30 20 1 9 18 22 23 21 3 MIN. QFE PRESSURE IN HPA ****** ****** ****** 1012.4 1002.9 1005.6 1002.4 1004.6 1006.6 1005.1 1008.7 1010.7 ****** DAY ** ** ** 17 6 10 31 1 1 1 27 10 MEAN QNH PRESSURE IN HPA ****** ****** ****** 1017.8 1014.2 1009.8 1008.7 1008.9 1012.2 1017.8 1018.0 1019.0 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1024.9 1021.7 1016.4 1016.4 1019.3 1026.1 1030.2 1029.2 1025.1 ****** DAY ** ** ** 30 20 1 9 18 22 23 21 3 MIN. QNH PRESSURE IN HPA ****** ****** ****** 1009.6 1000.1 1002.8 999.6 1001.8 1003.8 1002.3 1005.9 1007.9 ****** DAY ** ** ** 17 6 10 31 1 1 1 27 10 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1018.1 1014.6 1010.2 1009.1 1009.3 1012.6 1018.1 1018.3 1019.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1025.2 1022.0 1016.7 1016.8 1019.6 1026.4 1030.5 1029.4 1025.3 ****** DAY ** ** ** 30 20 1 9 18 22 23 21 3 MIN. QFF PRESSURE IN HPA ****** ****** ****** 1009.9 1000.5 1003.2 1000.0 1002.3 1004.2 1002.7 1006.3 1008.2 ****** DAY ** ** ** 17 6 10 31 1 1 1 27 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.9 7.3 9.3 13.3 17.4 22.9 25.3 24.0 22.9 18.0 14.3 9.4 15.8 MINIMUN AIR TEMPERATURE (C) 2.6 3.9 5.9 10.1 14.0 19.6 22.0 21.0 19.7 14.2 10.0 5.9 12.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 9 20 18 7 0 0 0 54 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 6 1 1 0 0 0 0 0 0 0 0 0 8 TEMPERATURE RECORDS LOWEST(C) -1.0 0.0 0.0 5.0 12.0 14.5 18.8 19.0 15.6 8.4 5.6 0.4 -1.0 DAY 13 9 19 3 1 8 1 2 14 16 14 28 MAXIMUM AIR TEMPERATURE (C) 9.8 11.2 13.0 17.0 20.8 26.3 29.0 27.4 26.8 22.5 19.3 13.8 19.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 2 12 0 1 1 0 0 16 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 13.0 19.0 24.0 29.0 26.6 30.2 32.0 29.4 35.4 30.6 22.4 23.0 35.4 DAY 21 17 2 12 12 13 27 16 14 23 3 5 DIF. BETWEEN (MAX.-MIN.) (C) 7.2 7.3 7.1 6.9 6.8 6.7 7.0 6.4 7.1 8.3 9.3 7.9 7.3 MEAN DAILY TEMP. (MDT) (C) 6.2 7.6 9.5 13.5 17.4 22.9 25.5 24.2 23.3 18.3 14.6 9.8 16.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.0 61.5 140.0 99.7 68.5 3.4 0.0 0.0 373.3 HEATING DEG. DAYS(BASE 18 0C) 366.2 292.5 264.9 138.4 29.6 0.0 0.0 0.0 0.0 23.1 101.5 253.0 1469.2 DEWPOINT (MEAN C) 3.4 4.1 6.3 11.0 14.5 19.4 21.9 21.0 20.4 15.6 11.8 6.8 13.0 MIXING RATIO (G/KG) 4.83 5.09 5.99 8.21 10.32 14.20 16.70 15.71 15.11 11.15 8.75 6.32 10.20 VAPOUR PRESSURE (HPA) 7.90 8.28 9.77 13.25 16.61 22.57 26.44 24.97 24.05 17.96 14.16 10.29 16.35 SATURATION DEF. (HPA) 1.54 2.19 2.27 2.30 3.46 5.58 6.16 5.11 4.21 3.16 2.66 2.02 3.39 RELATIVE HUMIDITY (MEAN %) 85 82 83 87 84 81 82 84 86 87 86 85 84 RELATIVE HUMIDITY (MAX. %) 95 94 94 97 95 93 93 95 95 97 96 95 95 RELATIVE HUMIDITY (MIN. %) 69 64 70 75 71 69 69 72 73 73 69 69 70 RELATIVE HUMIDITY (MEAN% 03UTC) 90 91 88 93 90 87 90 91 92 93 90 90 90 RELATIVE HUMIDITY (MEAN% 09UTC) 72 68 75 79 75 73 71 74 78 75 73 71 74 RELATIVE HUMIDITY (MEAN% 15UTC) 90 83 83 85 81 77 77 82 87 91 92 90 85 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 78.9 56.7 90.7 45.0 70.3 17.0 20.8 38.5 73.8 489.0 127.3 272.4 1380.4 DAYS WITH PRECIPITATION >=10 3 2 5 1 1 0 1 0 2 8 2 10 35 DAYS WITH PRECIPITATION >= 5 5 4 5 3 2 1 2 3 3 10 3 10 51 DAYS WITH PRECIPITATION >= 1 13 8 6 10 4 5 3 10 7 13 4 12 95 DAYS WITH PRECIPITATION 17 11 12 12 8 7 6 11 9 17 6 14 130 GREATEST DAILY PRECIPITATION 18.0 21.0 26.0 18.0 56.0 5.2 11.7 8.0 42.8 144.0 94.0 56.0 144.0 DAY 24 20 16 2 13 17 30 8 15 14 13 25 DAY WITH THUNDER STORM 0 0 0 0 0 1 0 0 0 0 0 0 1 DAYS WITH SNOW OR SLEET 0 0 2 0 0 0 0 0 0 0 0 2 4 DAYS WITH DUST 0 0 0 0 1 0 0 1 0 0 0 0 2 WIND DIRECTION (PREVAILING) 270 270 270 90 90 90 315 270 315 90 90 270 270 PREVAILING WIND SPEED(KNOTS) 9.0 9.1 8.8 5.3 5.6 4.9 7.7 6.0 6.3 6.7 5.3 8.8 8.3 PREVAILING WIND PERCENT 21.0 12.5 11.7 12.1 9.3 8.8 10.9 12.1 9.6 6.0 7.5 14.5 9.9 CALMS PERCENT OF WIND 58.1 67.0 63.3 57.1 61.3 60.8 60.9 68.1 77.1 70.6 68.8 68.1 65.1 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 278 332 294 329 343 357 326 303 310 8 307 273 310 VECTOR WIND MAGNITUDE(KNOTS) 1.8 0.5 1.5 1.1 1.0 0.8 1.3 1.6 1.0 0.3 0.5 1.0 0.9 WIND STEADINESES (MEAN %) 58.1 18.5 62.5 36.7 41.7 38.1 59.1 84.2 76.9 17.6 26.3 41.7 39.1 WIND SPEED (MEAN KNOTS) 3.1 2.7 2.4 3.0 2.4 2.1 2.2 1.9 1.3 1.7 1.9 2.4 2.3 FASTEST WIND DIRECTION 270 280 280 290 280 300 300 300 300 290 270 270 270 FASTEST WIND SPEED (KNOTS) 29 19 23 23 19 29 16 19 16 19 23 23 29 DAY 5 2 16 21 12 4 4 20 27 1 13 20 DAYS WITH SKY CLEAR (0-2)/8 10 11 12 9 13 13 9 9 9 11 11 8 125 DAYS WITH P.CLOUDY (3-6)/8 8 7 6 8 8 12 16 9 16 10 14 12 126 DAYS WITH CLOUDY (7-8)/8 13 10 13 13 10 5 6 13 5 10 5 11 114 DAYS WITH VISIBILITY =< 2 KM 0 0 9 2 2 0 0 0 2 5 2 4 26 DURATION OF SUNSHINE HOURS 119.4 126.9 155.8 170.9 206.3 208.7 194.3 128.1 130.8 152.5 159.0 106.6 1859.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1026.1 1021.9 1025.1 1017.2 1017.7 1011.8 1011.6 1014.0 1014.5 1021.1 1021.7 1024.5 1018.9 MAX. QFE PRESSURE IN HPA 1036.0 1035.7 1045.8 1030.1 1029.4 1021.4 1019.4 1020.6 1022.3 1036.7 1035.2 1035.1 1045.8 DAY-HOUR 9- 6 8- 6 16-21 3- 6 15-18 4-18 31- 6 29-18 16- 6 15- 6 13-15 27-18 MIN. QFE PRESSURE IN HPA 1012.7 1001.5 1011.9 1005.3 1000.1 1001.5 1002.1 1007.5 1001.6 1007.5 1007.2 1014.7 1000.1 DAY-HOUR 17-15 15-15 11- 9 12- 0 2-15 26-18 27-15 7-15 14- 0 31-21 9-21 17-12 MEAN QNH PRESSURE IN HPA 1023.2 1019.1 1022.2 1014.4 1014.8 1009.0 1008.8 1011.2 1011.7 1018.3 1018.8 1021.6 1016.1 MAX. QNH PRESSURE IN HPA 1033.1 1032.8 1042.9 1027.3 1026.6 1018.6 1016.6 1017.8 1019.5 1033.8 1032.3 1032.2 1042.9 DAY-HOUR 9- 6 8- 6 16-21 3- 6 15-18 4-18 31- 6 29-18 16- 6 15- 6 13-15 27-18 MIN. QNH PRESSURE IN HPA 1009.9 998.7 1009.1 1002.5 997.3 998.7 999.3 1004.7 998.8 1004.7 1004.4 1011.9 997.3 DAY-HOUR 17-15 15-15 11- 9 12- 0 2-15 26-18 27-15 7-15 14- 0 31-21 9-21 17-12 MEAN QFF PRESSURE IN HPA 1023.5 1019.3 1022.5 1014.7 1015.2 1009.3 1009.2 1011.5 1012.0 1018.7 1019.1 1021.9 1016.4 MAX. QFF PRESSURE IN HPA 1033.4 1033.1 1043.1 1027.5 1026.9 1019.0 1017.0 1018.2 1019.8 1034.1 1032.6 1032.4 1043.1 DAY-HOUR 9- 6 8- 6 16-21 3- 6 15-21 4-18 31- 6 29-18 16- 9 15- 6 13-15 28-18 MIN. QFF PRESSURE IN HPA 1010.1 999.0 1009.4 1002.8 997.6 999.1 999.7 1005.1 999.2 1005.0 1004.8 1012.2 997.6 DAY-HOUR 17-15 15-15 11- 9 12- 0 2-15 26-18 27-15 7-15 14- 0 31-21 9-21 17-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1025.9 1021.8 1024.3 1016.8 1017.5 1011.7 1011.5 1014.0 1014.2 1020.8 1021.0 1024.2 1018.6 MAX. QFE PRESSURE IN HPA 1035.1 1034.9 1044.6 1028.5 1028.7 1019.4 1017.8 1019.4 1021.8 1035.0 1033.9 1034.4 1044.6 DAY 9 8 17 3 16 5 31 30 16 15 14 28 MIN. QFE PRESSURE IN HPA 1014.6 1003.2 1012.6 1005.3 1007.6 1002.3 1006.2 1008.3 1001.6 1011.0 1007.3 1015.4 1001.6 DAY 4 16 1 12 13 27 27 7 14 26 1 5 MEAN QNH PRESSURE IN HPA 1023.0 1019.0 1021.5 1013.9 1014.7 1008.9 1008.7 1011.2 1011.4 1017.9 1018.2 1021.4 1015.8 MAX. QNH PRESSURE IN HPA 1032.2 1032.0 1041.7 1025.7 1025.9 1016.6 1015.0 1016.6 1019.0 1032.1 1031.1 1031.5 1041.7 DAY 9 8 17 3 16 5 31 30 16 15 14 28 MIN. QNH PRESSURE IN HPA 1011.8 1000.4 1009.8 1002.5 1004.8 999.5 1003.4 1005.5 998.8 1008.2 1004.5 1012.6 998.8 DAY 4 16 1 12 13 27 27 7 14 26 1 5 MEAN QFF PRESSURE IN HPA 1023.2 1019.2 1021.8 1014.2 1015.0 1009.3 1009.1 1011.6 1011.7 1018.3 1018.5 1021.6 1016.1 MAX. QFF PRESSURE IN HPA 1032.5 1032.3 1041.9 1025.9 1026.2 1016.9 1015.4 1017.0 1019.3 1032.4 1031.3 1031.7 1041.9 DAY 9 8 17 3 16 5 31 30 16 15 14 28 MIN. QFF PRESSURE IN HPA 1012.0 1000.7 1010.1 1002.8 1005.2 999.9 1003.8 1005.9 999.2 1008.6 1004.8 1012.9 999.2 DAY 4 16 1 12 13 27 27 7 14 26 1 17 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1026.1 1022.0 1024.9 1017.1 1018.3 1012.3 1012.0 1014.4 1014.9 1021.2 1021.6 1024.5 1019.1 MAX. QFE PRESSURE IN HPA 1034.9 1034.9 1044.6 1029.4 1029.1 1019.3 1019.2 1020.2 1022.1 1035.3 1033.3 1034.6 1044.6 DAY 9 8 17 3 16 30 31 29 16 15 14 28 MIN. QFE PRESSURE IN HPA 1014.2 1004.8 1013.2 1005.7 1008.3 1003.8 1006.6 1008.5 1002.8 1013.6 1011.9 1015.7 1002.8 DAY 23 16 1 12 13 27 27 7 14 23 1 5 MEAN QNH PRESSURE IN HPA 1023.3 1019.2 1022.1 1014.3 1015.4 1009.5 1009.2 1011.6 1012.1 1018.4 1018.8 1021.7 1016.3 MAX. QNH PRESSURE IN HPA 1032.0 1032.0 1041.7 1026.6 1026.3 1016.5 1016.4 1017.4 1019.3 1032.4 1030.5 1031.7 1041.7 DAY 9 8 17 3 16 30 31 29 16 15 14 28 MIN. QNH PRESSURE IN HPA 1011.4 1002.0 1010.4 1002.9 1005.5 1001.0 1003.8 1005.7 1000.0 1010.8 1009.1 1012.9 1000.0 DAY 23 16 1 12 13 27 27 7 14 23 1 5 MEAN QFF PRESSURE IN HPA 1023.5 1019.4 1022.4 1014.6 1015.8 1009.9 1009.6 1012.0 1012.5 1018.7 1019.1 1022.0 1016.6 MAX. QFF PRESSURE IN HPA 1032.2 1032.2 1041.9 1026.8 1026.6 1016.8 1016.8 1017.8 1019.6 1032.7 1030.7 1031.9 1041.9 DAY 9 8 17 3 16 30 31 29 16 15 14 28 MIN. QFF PRESSURE IN HPA 1011.6 1002.3 1010.6 1003.2 1005.8 1001.4 1004.2 1006.1 1000.4 1011.1 1009.4 1013.2 1000.4 DAY 23 16 1 12 13 27 27 7 14 23 1 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1027.0 1022.8 1025.9 1017.7 1018.4 1012.5 1012.2 1014.7 1015.4 1022.1 1022.7 1025.4 1019.7 MAX. QFE PRESSURE IN HPA 1036.0 1035.7 1044.4 1030.1 1028.6 1020.4 1019.4 1020.2 1022.3 1036.7 1033.6 1035.0 1044.4 DAY 9 8 17 3 16 30 31 2 16 15 14 28 MIN. QFE PRESSURE IN HPA 1015.5 1007.2 1013.2 1006.3 1006.4 1004.9 1005.1 1008.9 1004.6 1014.5 1015.0 1016.7 1004.6 DAY 4 15 11 12 2 27 27 7 14 23 7 5 MEAN QNH PRESSURE IN HPA 1024.2 1019.9 1023.0 1014.9 1015.6 1009.7 1009.4 1011.9 1012.6 1019.3 1019.9 1022.6 1016.9 MAX. QNH PRESSURE IN HPA 1033.1 1032.8 1041.5 1027.3 1025.8 1017.6 1016.6 1017.4 1019.5 1033.8 1030.8 1032.1 1041.5 DAY 9 8 17 3 16 30 31 2 16 15 14 28 MIN. QNH PRESSURE IN HPA 1012.7 1004.4 1010.4 1003.5 1003.6 1002.1 1002.3 1006.1 1001.8 1011.7 1012.2 1013.9 1001.8 DAY 4 15 11 12 2 27 27 7 14 23 7 5 MEAN QFF PRESSURE IN HPA 1024.4 1020.2 1023.3 1015.2 1015.9 1010.1 1009.8 1012.3 1013.0 1019.7 1020.2 1022.9 1017.2 MAX. QFF PRESSURE IN HPA 1033.4 1033.1 1041.7 1027.5 1026.1 1017.9 1017.0 1017.8 1019.8 1034.1 1031.0 1032.3 1041.7 DAY 9 8 17 3 16 30 31 29 16 15 14 28 MIN. QFF PRESSURE IN HPA 1012.9 1004.7 1010.7 1003.8 1003.9 1002.5 1002.7 1006.5 1002.2 1012.1 1012.5 1014.2 1002.2 DAY 4 15 11 12 2 27 27 7 14 23 7 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1025.9 1022.0 1025.5 1017.5 1017.9 1012.3 1012.0 1014.2 1014.8 1021.5 1021.8 1024.4 1019.1 MAX. QFE PRESSURE IN HPA 1034.5 1034.8 1043.3 1029.2 1028.1 1019.4 1018.5 1019.7 1022.3 1036.2 1031.4 1034.0 1043.3 DAY 9 8 16 3 15 30 31 2 16 15 13 28 MIN. QFE PRESSURE IN HPA 1013.3 1004.9 1011.9 1006.5 1003.2 1005.2 1004.1 1008.6 1006.1 1013.9 1011.4 1015.7 1003.2 DAY 23 15 11 1 2 26 27 7 13 23 9 17 MEAN QNH PRESSURE IN HPA 1023.1 1019.2 1022.6 1014.7 1015.0 1009.5 1009.2 1011.4 1012.0 1018.7 1019.0 1021.6 1016.3 MAX. QNH PRESSURE IN HPA 1031.6 1031.9 1040.4 1026.4 1025.3 1016.6 1015.7 1016.9 1019.5 1033.3 1028.6 1031.1 1040.4 DAY 9 8 16 3 15 30 31 2 16 15 13 28 MIN. QNH PRESSURE IN HPA 1010.5 1002.1 1009.1 1003.7 1000.4 1002.4 1001.3 1005.8 1003.3 1011.1 1008.6 1012.9 1000.4 DAY 23 15 11 1 2 26 27 7 13 23 9 17 MEAN QFF PRESSURE IN HPA 1023.3 1019.4 1022.9 1015.0 1015.4 1009.9 1009.6 1011.8 1012.4 1019.0 1019.3 1021.9 1016.6 MAX. QFF PRESSURE IN HPA 1031.9 1032.2 1040.6 1026.6 1025.6 1017.0 1016.1 1017.3 1019.8 1033.6 1028.8 1031.4 1040.6 DAY 9 8 16 3 15 30 31 2 16 15 13 28 MIN. QFF PRESSURE IN HPA 1010.8 1002.4 1009.4 1004.0 1000.7 1002.8 1001.7 1006.2 1003.7 1011.5 1008.9 1013.2 1000.7 DAY 23 15 11 1 2 26 27 7 13 23 9 17 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1025.3 1021.1 1024.7 1017.1 1017.2 1011.5 1011.3 1013.3 1013.9 1020.9 1021.4 1023.9 1018.5 MAX. QFE PRESSURE IN HPA 1034.4 1033.2 1043.4 1026.4 1028.1 1019.3 1017.5 1019.0 1022.0 1035.8 1034.0 1034.0 1043.4 DAY 25 7 16 3 15 4 31 1 16 15 13 27 MIN. QFE PRESSURE IN HPA 1012.9 1002.8 1012.1 1005.9 1000.6 1003.1 1003.3 1007.9 1004.6 1012.4 1008.8 1014.7 1000.6 DAY 17 15 2 12 2 26 27 7 13 31 9 17 MEAN QNH PRESSURE IN HPA 1022.5 1018.3 1021.9 1014.3 1014.4 1008.7 1008.5 1010.5 1011.1 1018.0 1018.5 1021.1 1015.7 MAX. QNH PRESSURE IN HPA 1031.5 1030.4 1040.5 1023.6 1025.3 1016.5 1014.7 1016.2 1019.2 1032.9 1031.1 1031.1 1040.5 DAY 25 7 16 3 15 4 31 1 16 15 13 27 MIN. QNH PRESSURE IN HPA 1010.1 1000.0 1009.3 1003.1 997.8 1000.3 1000.5 1005.1 1001.8 1009.6 1006.0 1011.9 997.8 DAY 17 15 2 12 2 26 27 7 13 31 9 17 MEAN QFF PRESSURE IN HPA 1022.7 1018.6 1022.1 1014.6 1014.7 1009.1 1008.9 1010.9 1011.5 1018.4 1018.9 1021.4 1016.0 MAX. QFF PRESSURE IN HPA 1031.8 1030.6 1040.7 1023.8 1025.6 1016.9 1015.1 1016.6 1019.5 1033.2 1031.4 1031.4 1040.7 DAY 25 7 16 3 15 4 31 29 16 15 13 27 MIN. QFF PRESSURE IN HPA 1010.3 1000.3 1009.6 1003.4 998.1 1000.7 1000.9 1005.5 1002.2 1009.9 1006.3 1012.2 998.1 DAY 17 15 2 12 2 26 27 7 13 31 9 17 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1026.0 1021.9 1025.0 1017.1 1017.0 1010.8 1010.9 1013.1 1013.8 1021.0 1021.7 1024.4 1018.6 MAX. QFE PRESSURE IN HPA 1035.2 1034.3 1044.3 1027.8 1028.5 1020.2 1017.8 1019.3 1022.0 1035.7 1035.2 1034.8 1044.3 DAY 25 7 16 3 15 4 31 29 16 15 13 27 MIN. QFE PRESSURE IN HPA 1012.7 1001.5 1013.2 1006.5 1000.1 1001.6 1002.1 1007.5 1002.9 1011.8 1007.7 1015.1 1000.1 DAY 17 15 1 12 2 26 27 7 13 31 9 17 MEAN QNH PRESSURE IN HPA 1023.1 1019.1 1022.2 1014.2 1014.2 1008.0 1008.1 1010.3 1011.0 1018.2 1018.9 1021.6 1015.7 MAX. QNH PRESSURE IN HPA 1032.3 1031.4 1041.4 1025.0 1025.7 1017.4 1015.0 1016.5 1019.2 1032.8 1032.3 1031.9 1041.4 DAY 25 7 16 3 15 4 31 29 16 15 13 27 MIN. QNH PRESSURE IN HPA 1009.9 998.7 1010.4 1003.7 997.3 998.8 999.3 1004.7 1000.1 1009.0 1004.9 1012.3 997.3 DAY 17 15 1 12 2 26 27 7 13 31 9 17 MEAN QFF PRESSURE IN HPA 1023.4 1019.3 1022.4 1014.5 1014.5 1008.4 1008.5 1010.7 1011.3 1018.5 1019.2 1021.9 1016.1 MAX. QFF PRESSURE IN HPA 1032.5 1031.7 1041.6 1025.2 1026.0 1017.8 1015.4 1016.9 1019.5 1033.1 1032.6 1032.1 1041.6 DAY 25 7 16 3 15 4 31 29 16 15 13 27 MIN. QFF PRESSURE IN HPA 1010.1 999.0 1010.7 1004.0 997.6 999.2 999.7 1005.1 1000.5 1009.3 1005.2 1012.5 997.6 DAY 17 15 1 12 2 26 27 7 13 31 9 17 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1026.4 1022.2 1025.4 1017.4 1017.8 1011.5 1011.7 1014.1 1014.5 1021.1 1021.8 1024.6 1019.0 MAX. QFE PRESSURE IN HPA 1035.2 1034.9 1045.6 1027.6 1029.4 1021.4 1018.9 1020.6 1022.2 1036.4 1035.0 1035.1 1045.6 DAY 25 7 16 2 15 4 31 29 16 15 13 27 MIN. QFE PRESSURE IN HPA 1013.5 1001.8 1014.5 1006.5 1005.3 1001.5 1002.9 1008.6 1002.7 1009.1 1008.5 1015.1 1001.5 DAY 17 15 1 12 2 26 27 6 13 31 9 4 MEAN QNH PRESSURE IN HPA 1023.6 1019.4 1022.6 1014.6 1014.9 1008.7 1008.9 1011.3 1011.7 1018.2 1019.0 1021.8 1016.2 MAX. QNH PRESSURE IN HPA 1032.3 1032.0 1042.7 1024.8 1026.6 1018.6 1016.1 1017.8 1019.4 1033.5 1032.1 1032.2 1042.7 DAY 25 7 16 2 15 4 31 29 16 15 13 27 MIN. QNH PRESSURE IN HPA 1010.7 999.0 1011.7 1003.7 1002.5 998.7 1000.1 1005.8 999.9 1006.3 1005.7 1012.3 998.7 DAY 17 15 1 12 2 26 27 6 13 31 9 4 MEAN QFF PRESSURE IN HPA 1023.8 1019.6 1022.9 1014.9 1015.3 1009.1 1009.3 1011.7 1012.1 1018.6 1019.3 1022.0 1016.5 MAX. QFF PRESSURE IN HPA 1032.5 1032.3 1042.9 1025.0 1026.9 1019.0 1016.5 1018.2 1019.7 1033.8 1032.4 1032.4 1042.9 DAY 25 7 16 2 15 4 31 29 16 15 13 28 MIN. QFF PRESSURE IN HPA 1010.9 999.3 1012.0 1004.0 1002.8 999.1 1000.5 1006.2 1000.3 1006.6 1006.0 1012.6 999.1 DAY 17 15 1 12 2 26 27 6 13 31 9 4 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1026.2 1021.8 1024.9 1017.1 1017.5 1011.6 1011.7 1014.0 1014.4 1020.7 1021.3 1024.3 1018.8 MAX. QFE PRESSURE IN HPA 1035.2 1034.9 1045.8 1027.8 1029.4 1020.4 1018.7 1019.9 1022.0 1035.2 1034.6 1034.4 1045.8 DAY 25 7 16 2 15 4 31 29 15 15 13 27 MIN. QFE PRESSURE IN HPA 1014.3 1002.6 1014.9 1005.7 1008.8 1001.7 1004.4 1008.6 1001.8 1007.5 1007.2 1015.1 1001.7 DAY 17 15 1 12 12 26 27 6 13 31 9 4 MEAN QNH PRESSURE IN HPA 1023.3 1019.0 1022.1 1014.3 1014.6 1008.8 1008.9 1011.2 1011.6 1017.9 1018.5 1021.5 1016.0 MAX. QNH PRESSURE IN HPA 1032.3 1032.0 1042.9 1025.0 1026.6 1017.6 1015.9 1017.1 1019.2 1032.3 1031.7 1031.5 1042.9 DAY 25 7 16 2 15 4 31 29 15 15 13 27 MIN. QNH PRESSURE IN HPA 1011.5 999.8 1012.1 1002.9 1006.0 998.9 1001.6 1005.8 999.0 1004.7 1004.4 1012.3 998.9 DAY 17 15 1 12 12 26 27 6 13 31 9 4 MEAN QFF PRESSURE IN HPA 1023.5 1019.3 1022.4 1014.6 1015.0 1009.2 1009.3 1011.6 1012.0 1018.2 1018.8 1021.7 1016.3 MAX. QFF PRESSURE IN HPA 1032.5 1032.3 1043.1 1025.2 1026.9 1017.9 1016.3 1017.5 1019.5 1032.6 1032.0 1031.8 1043.1 DAY 25 7 16 2 15 4 31 29 15 15 13 27 MIN. QFF PRESSURE IN HPA 1011.7 1000.1 1012.4 1003.3 1006.4 999.3 1002.1 1006.2 999.4 1005.0 1004.8 1012.6 999.3 DAY 17 15 1 12 12 26 27 6 13 31 9 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.2 6.1 8.2 13.7 17.3 22.6 25.5 25.4 22.0 19.1 13.3 8.8 15.8 MINIMUN AIR TEMPERATURE (C) 3.9 3.3 6.6 11.1 14.3 19.0 21.5 22.3 19.2 15.5 10.4 4.9 12.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 5 20 27 7 0 0 0 59 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 6 0 0 0 0 0 0 0 0 0 2 8 TEMPERATURE RECORDS LOWEST(C) 1.0 -2.5 1.6 6.4 9.6 15.0 18.0 20.0 13.4 12.2 4.2 0.0 -2.5 DAY 1 15 12 14 7 6 15 28 28 19 25 20 MAXIMUM AIR TEMPERATURE (C) 11.0 9.5 10.3 17.4 20.4 26.0 29.6 29.0 25.5 23.3 17.1 13.8 19.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 1 15 5 0 0 0 0 21 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.4 18.2 14.2 27.6 24.0 30.8 32.8 31.5 28.0 25.6 20.0 20.2 32.8 DAY 6 18 27 26 10 29 5 2 4 25 1 10 DIF. BETWEEN (MAX.-MIN.) (C) 7.1 6.2 3.7 6.3 6.1 7.0 8.1 6.7 6.3 7.8 6.7 8.9 6.8 MEAN DAILY TEMP. (MDT) (C) 7.4 6.4 8.4 14.2 17.4 22.5 25.5 25.6 22.4 19.4 13.7 9.4 16.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.3 0.0 50.6 140.0 142.7 49.9 0.0 0.0 0.0 383.6 HEATING DEG. DAYS(BASE 18 0C) 327.2 324.5 296.1 118.7 35.8 0.0 0.0 0.0 0.0 1.8 127.8 267.7 1499.6 DEWPOINT (MEAN C) 4.4 3.6 6.6 11.1 14.4 19.0 21.7 22.0 19.2 16.6 11.1 5.6 12.9 MIXING RATIO (G/KG) 5.17 4.95 6.03 8.25 10.29 13.92 16.53 16.77 14.00 11.86 8.27 5.77 10.15 VAPOUR PRESSURE (HPA) 8.44 8.08 9.82 13.32 16.50 22.17 26.11 26.54 22.38 19.10 13.44 9.37 16.27 SATURATION DEF. (HPA) 1.89 1.58 1.15 2.62 3.51 5.76 7.09 6.24 4.44 3.32 2.05 2.35 3.50 RELATIVE HUMIDITY (MEAN %) 83 85 90 85 83 81 81 82 85 86 88 82 84 RELATIVE HUMIDITY (MAX. %) 93 95 96 95 94 92 94 93 94 95 96 93 94 RELATIVE HUMIDITY (MIN. %) 69 72 80 72 71 69 65 70 73 73 75 65 71 RELATIVE HUMIDITY (MEAN% 03UTC) 88 91 93 93 89 87 88 89 90 92 91 87 90 RELATIVE HUMIDITY (MEAN% 09UTC) 71 75 83 77 75 72 70 72 76 76 78 68 74 RELATIVE HUMIDITY (MEAN% 15UTC) 86 85 90 84 80 75 77 79 85 91 92 88 84 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 74.8 121.2 80.6 22.8 51.9 9.4 18.5 23.1 168.9 47.3 232.9 110.9 962.3 DAYS WITH PRECIPITATION >=10 2 4 4 1 2 0 1 0 2 1 4 4 25 DAYS WITH PRECIPITATION >= 5 3 8 7 1 3 1 1 2 6 5 11 8 56 DAYS WITH PRECIPITATION >= 1 8 11 13 6 5 2 4 5 9 8 15 8 94 DAYS WITH PRECIPITATION 11 14 21 11 9 3 7 8 11 11 18 10 134 GREATEST DAILY PRECIPITATION 47.0 32.0 13.8 13.0 25.0 6.1 11.4 9.0 92.0 12.0 53.0 32.0 92.0 DAY 5 5 10 13 24 8 10 7 25 10 15 16 DAY WITH THUNDER STORM 0 0 0 1 1 1 2 0 0 3 1 2 11 DAYS WITH SNOW OR SLEET 0 1 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 270 270 270 90 90 315 315 315 315 315 270 270 270 PREVAILING WIND SPEED(KNOTS) 6.6 8.4 7.8 5.6 6.2 7.9 7.9 8.0 6.7 6.4 7.6 7.3 7.8 PREVAILING WIND PERCENT 14.9 15.6 20.2 15.4 10.1 10.8 6.0 11.7 5.0 6.5 12.5 9.3 9.3 CALMS PERCENT OF WIND 66.9 62.1 56.5 55.4 60.9 67.5 78.2 78.6 78.8 82.7 75.4 79.4 70.3 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 277 297 293 359 331 327 326 304 335 316 299 282 310 VECTOR WIND MAGNITUDE(KNOTS) 1.1 1.2 1.4 0.8 0.9 1.2 0.8 1.3 0.6 0.5 0.7 0.4 0.8 WIND STEADINESES (MEAN %) 55.0 46.2 50.0 26.7 33.3 57.1 57.1 86.7 50.0 50.0 38.9 30.8 40.0 WIND SPEED (MEAN KNOTS) 2.0 2.6 2.8 3.0 2.7 2.1 1.4 1.5 1.2 1.0 1.8 1.3 2.0 FASTEST WIND DIRECTION 270 270 270 280 300 300 350 300 320 290 270 280 280 FASTEST WIND SPEED (KNOTS) 16 29 21 31 29 14 17 19 14 19 19 16 31 DAY 26 21 10 18 9 11 13 18 4 26 1 9 DAYS WITH SKY CLEAR (0-2)/8 5 6 0 7 14 19 18 12 12 11 5 12 121 DAYS WITH P.CLOUDY (3-6)/8 10 5 5 12 7 9 8 15 8 11 11 11 112 DAYS WITH CLOUDY (7-8)/8 16 17 25 11 10 2 5 4 10 9 14 8 131 DAYS WITH VISIBILITY =< 2 KM 2 5 9 6 1 0 0 0 3 2 1 1 30 DURATION OF SUNSHINE HOURS 94.9 86.3 44.7 139.9 174.1 248.3 237.0 166.0 126.5 150.5 96.7 137.1 1702.0 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1023.8 1025.3 1022.7 1018.2 1014.6 1013.5 1009.3 1011.7 1017.9 1021.0 1025.1 1020.2 1018.6 MAX. QFE PRESSURE IN HPA 1033.9 1037.1 1031.1 1031.2 1026.0 1022.8 1020.2 1019.4 1027.7 1029.1 1033.7 1035.7 1037.1 DAY-HOUR 11- 6 22- 6 11- 9 28-18 4-18 17- 6 11- 9 27- 3 26-18 13- 6 27- 6 16-18 MIN. QFE PRESSURE IN HPA 1009.7 1009.5 1010.2 1003.2 997.6 1003.3 995.8 1004.6 1007.0 1012.7 1013.7 1006.1 995.8 DAY-HOUR 3-15 17- 0 6- 9 4-12 16-18 11- 0 7-15 1-21 19-12 24-21 30-21 9-12 MEAN QNH PRESSURE IN HPA 1021.0 1022.4 1019.8 1015.4 1011.8 1010.7 1006.5 1008.9 1015.1 1018.1 1022.2 1017.4 1015.8 MAX. QNH PRESSURE IN HPA 1031.1 1034.2 1028.3 1028.4 1023.2 1020.0 1017.4 1016.6 1024.9 1026.3 1030.9 1032.8 1034.2 DAY-HOUR 11- 6 22- 6 11- 9 28-18 4-18 17- 6 11- 9 27- 3 26-18 13- 6 27- 6 16-18 MIN. QNH PRESSURE IN HPA 1006.9 1006.7 1007.4 1000.4 994.8 1000.5 993.0 1001.8 1004.2 1009.9 1010.9 1003.3 993.0 DAY-HOUR 3-15 17- 0 6- 9 4-12 16-18 11- 0 7-15 1-21 19-12 24-21 30-21 9-12 MEAN QFF PRESSURE IN HPA 1021.2 1022.6 1020.1 1015.7 1012.1 1011.1 1006.9 1009.3 1015.5 1018.5 1022.5 1017.6 1016.1 MAX. QFF PRESSURE IN HPA 1031.3 1034.4 1028.5 1028.7 1023.5 1020.4 1017.8 1017.0 1025.2 1026.6 1031.1 1033.1 1034.4 DAY-HOUR 11- 6 22- 6 11- 9 28-18 4-18 17- 9 11- 9 27- 3 26-18 13- 6 27- 6 16-18 MIN. QFF PRESSURE IN HPA 1007.1 1007.0 1007.6 1000.7 995.2 1000.9 993.5 1002.2 1004.6 1010.2 1011.2 1003.6 993.5 DAY-HOUR 3-15 17- 0 6- 9 4-12 16-18 11- 0 7-15 1-21 19-12 24-21 30-21 9-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1023.9 1024.8 1022.0 1017.9 1014.1 1013.0 1009.1 1011.4 1017.5 1020.6 1025.1 1020.2 1018.3 MAX. QFE PRESSURE IN HPA 1032.4 1034.7 1029.6 1028.5 1023.4 1020.4 1017.0 1018.5 1026.6 1028.4 1032.7 1034.1 1034.7 DAY 11 22 11 29 5 17 12 27 27 13 27 17 MIN. QFE PRESSURE IN HPA 1013.6 1009.5 1011.3 1007.4 1002.8 1003.3 999.6 1005.3 1008.2 1012.8 1016.1 1009.7 999.6 DAY 31 17 7 4 17 11 7 2 7 25 5 10 MEAN QNH PRESSURE IN HPA 1021.0 1022.0 1019.1 1015.1 1011.3 1010.2 1006.3 1008.6 1014.6 1017.8 1022.2 1017.4 1015.5 MAX. QNH PRESSURE IN HPA 1029.6 1031.8 1026.8 1025.7 1020.6 1017.6 1014.2 1015.7 1023.8 1025.6 1029.9 1031.2 1031.8 DAY 11 22 11 29 5 17 12 27 27 13 27 17 MIN. QNH PRESSURE IN HPA 1010.8 1006.7 1008.5 1004.6 1000.0 1000.5 996.8 1002.5 1005.4 1010.0 1013.3 1006.9 996.8 DAY 31 17 7 4 17 11 7 2 7 25 5 10 MEAN QFF PRESSURE IN HPA 1021.3 1022.2 1019.4 1015.4 1011.7 1010.6 1006.7 1009.0 1015.0 1018.1 1022.5 1017.7 1015.8 MAX. QFF PRESSURE IN HPA 1029.8 1032.0 1027.0 1026.0 1020.9 1018.0 1014.6 1016.1 1024.1 1025.9 1030.1 1031.4 1032.0 DAY 11 22 11 29 5 17 12 27 27 13 27 17 MIN. QFF PRESSURE IN HPA 1011.0 1007.0 1008.7 1004.9 1000.4 1000.9 997.2 1002.9 1005.8 1010.3 1013.6 1007.2 997.2 DAY 31 17 7 4 17 11 7 2 7 25 5 10 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1024.2 1025.2 1022.5 1018.5 1014.8 1014.0 1009.6 1012.2 1018.1 1021.1 1025.2 1020.4 1018.8 MAX. QFE PRESSURE IN HPA 1032.6 1035.9 1030.3 1028.6 1023.7 1022.0 1018.7 1019.4 1026.2 1028.4 1033.0 1032.5 1035.9 DAY 11 22 11 29 4 17 11 27 27 13 27 17 MIN. QFE PRESSURE IN HPA 1012.7 1010.3 1011.9 1008.7 1004.8 1005.0 999.3 1006.5 1008.8 1013.1 1017.5 1010.5 999.3 DAY 31 17 6 4 17 11 7 2 21 25 5 1 MEAN QNH PRESSURE IN HPA 1021.4 1022.3 1019.6 1015.7 1012.0 1011.1 1006.8 1009.4 1015.3 1018.3 1022.4 1017.5 1016.0 MAX. QNH PRESSURE IN HPA 1029.8 1033.0 1027.5 1025.8 1020.9 1019.2 1015.9 1016.6 1023.4 1025.6 1030.2 1029.7 1033.0 DAY 11 22 11 29 4 17 11 27 27 13 27 17 MIN. QNH PRESSURE IN HPA 1009.9 1007.5 1009.1 1005.9 1002.0 1002.2 996.5 1003.7 1006.0 1010.3 1014.7 1007.7 996.5 DAY 31 17 6 4 17 11 7 2 21 25 5 1 MEAN QFF PRESSURE IN HPA 1021.6 1022.6 1019.9 1016.0 1012.4 1011.5 1007.2 1009.8 1015.7 1018.6 1022.6 1017.8 1016.3 MAX. QFF PRESSURE IN HPA 1030.0 1033.2 1027.7 1026.1 1021.2 1019.6 1016.3 1017.0 1023.7 1025.9 1030.4 1029.8 1033.2 DAY 11 22 11 29 4 17 11 27 27 13 27 17 MIN. QFF PRESSURE IN HPA 1010.1 1007.7 1009.3 1006.2 1002.4 1002.6 996.9 1004.1 1006.4 1010.6 1015.0 1008.0 996.9 DAY 31 17 7 4 17 11 7 2 21 25 5 1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1025.2 1026.0 1023.4 1018.9 1015.3 1014.2 1009.9 1012.5 1018.8 1021.9 1025.9 1020.8 1019.4 MAX. QFE PRESSURE IN HPA 1033.9 1037.1 1030.9 1029.6 1024.5 1022.8 1019.3 1019.3 1026.3 1029.1 1033.7 1032.5 1037.1 DAY 11 22 11 28 4 17 11 27 27 13 27 17 MIN. QFE PRESSURE IN HPA 1011.7 1011.4 1011.6 1009.5 1006.5 1005.3 997.8 1007.3 1009.3 1014.0 1017.4 1010.5 997.8 DAY 31 17 6 4 22 11 7 11 19 25 4 1 MEAN QNH PRESSURE IN HPA 1022.3 1023.2 1020.6 1016.1 1012.5 1011.4 1007.1 1009.7 1016.0 1019.0 1023.1 1018.0 1016.6 MAX. QNH PRESSURE IN HPA 1031.1 1034.2 1028.1 1026.8 1021.7 1020.0 1016.5 1016.5 1023.5 1026.3 1030.9 1029.7 1034.2 DAY 11 22 11 28 4 17 11 27 27 13 27 17 MIN. QNH PRESSURE IN HPA 1008.9 1008.6 1008.8 1006.7 1003.7 1002.5 995.0 1004.5 1006.5 1011.2 1014.6 1007.7 995.0 DAY 31 17 6 4 22 11 7 11 19 25 4 1 MEAN QFF PRESSURE IN HPA 1022.6 1023.4 1020.8 1016.4 1012.8 1011.8 1007.5 1010.1 1016.4 1019.4 1023.4 1018.3 1016.9 MAX. QFF PRESSURE IN HPA 1031.3 1034.4 1028.3 1027.1 1022.0 1020.4 1016.9 1016.9 1023.8 1026.6 1031.1 1029.9 1034.4 DAY 11 22 11 28 4 17 11 27 27 13 27 17 MIN. QFF PRESSURE IN HPA 1009.1 1008.8 1009.0 1007.0 1004.1 1002.9 995.5 1004.9 1006.9 1011.5 1014.9 1008.0 995.5 DAY 31 17 6 4 22 11 7 11 19 25 4 1 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1024.1 1025.4 1023.1 1018.5 1015.1 1014.0 1009.8 1012.1 1018.3 1021.2 1024.9 1019.8 1018.9 MAX. QFE PRESSURE IN HPA 1032.4 1036.3 1031.1 1029.9 1025.4 1022.8 1020.2 1018.8 1025.5 1027.8 1032.1 1030.4 1036.3 DAY 11 22 11 28 4 17 11 27 27 13 27 17 MIN. QFE PRESSURE IN HPA 1010.7 1011.9 1010.2 1006.7 1006.0 1004.2 998.1 1007.1 1008.1 1013.9 1015.4 1008.4 998.1 DAY 31 17 6 4 16 11 7 1 19 26 4 9 MEAN QNH PRESSURE IN HPA 1021.2 1022.6 1020.2 1015.7 1012.3 1011.2 1007.0 1009.3 1015.5 1018.4 1022.1 1017.0 1016.0 MAX. QNH PRESSURE IN HPA 1029.6 1033.4 1028.3 1027.1 1022.6 1020.0 1017.4 1016.0 1022.7 1025.0 1029.3 1027.6 1033.4 DAY 11 22 11 28 4 17 11 27 27 13 27 17 MIN. QNH PRESSURE IN HPA 1007.9 1009.1 1007.4 1003.9 1003.2 1001.4 995.3 1004.3 1005.3 1011.1 1012.6 1005.6 995.3 DAY 31 17 6 4 16 11 7 1 19 26 4 9 MEAN QFF PRESSURE IN HPA 1021.5 1022.8 1020.5 1016.0 1012.7 1011.6 1007.4 1009.7 1015.9 1018.8 1022.4 1017.2 1016.4 MAX. QFF PRESSURE IN HPA 1029.8 1033.6 1028.5 1027.4 1022.9 1020.4 1017.8 1016.4 1023.0 1025.3 1029.5 1027.8 1033.6 DAY 11 22 11 28 4 17 11 27 27 13 27 17 MIN. QFF PRESSURE IN HPA 1008.1 1009.4 1007.6 1004.2 1003.5 1001.8 995.8 1004.7 1005.7 1011.4 1012.9 1005.9 995.8 DAY 31 17 6 4 16 11 7 1 19 26 4 9 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1023.4 1024.8 1022.4 1017.8 1014.7 1013.6 1009.0 1011.2 1017.5 1020.6 1024.4 1019.5 1018.2 MAX. QFE PRESSURE IN HPA 1031.8 1035.7 1031.1 1030.1 1025.5 1022.1 1019.7 1017.8 1026.0 1027.5 1031.0 1030.9 1035.7 DAY 10 22 11 28 4 17 11 27 26 12 27 16 MIN. QFE PRESSURE IN HPA 1010.0 1012.6 1010.6 1003.2 1004.6 1004.3 996.7 1005.9 1007.0 1013.4 1015.1 1006.1 996.7 DAY 3 27 6 4 16 11 7 1 19 26 4 9 MEAN QNH PRESSURE IN HPA 1020.5 1021.9 1019.6 1015.0 1011.9 1010.8 1006.2 1008.4 1014.7 1017.8 1021.6 1016.7 1015.4 MAX. QNH PRESSURE IN HPA 1029.0 1032.8 1028.3 1027.3 1022.7 1019.3 1016.9 1015.0 1023.2 1024.7 1028.2 1028.1 1032.8 DAY 10 22 11 28 4 17 11 27 26 12 27 16 MIN. QNH PRESSURE IN HPA 1007.2 1009.8 1007.8 1000.4 1001.8 1001.5 993.9 1003.1 1004.2 1010.6 1012.3 1003.3 993.9 DAY 3 27 6 4 16 11 7 1 19 26 4 9 MEAN QFF PRESSURE IN HPA 1020.8 1022.2 1019.9 1015.3 1012.2 1011.2 1006.6 1008.8 1015.0 1018.2 1021.9 1017.0 1015.7 MAX. QFF PRESSURE IN HPA 1029.2 1033.0 1028.5 1027.6 1023.0 1019.7 1017.3 1015.4 1023.5 1025.0 1028.4 1028.3 1033.0 DAY 10 22 11 28 4 17 11 27 26 12 27 16 MIN. QFF PRESSURE IN HPA 1007.4 1010.1 1008.0 1000.7 1002.1 1001.9 994.4 1003.5 1004.6 1011.0 1012.6 1003.6 994.4 DAY 3 27 6 4 16 11 7 1 19 26 4 9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1023.5 1025.4 1022.7 1017.8 1014.1 1013.0 1008.6 1011.0 1017.4 1020.8 1025.0 1020.5 1018.3 MAX. QFE PRESSURE IN HPA 1032.6 1035.7 1031.1 1030.5 1025.4 1021.9 1019.1 1017.8 1026.7 1028.2 1031.5 1035.3 1035.7 DAY 10 22 11 28 4 17 11 27 26 12 26 16 MIN. QFE PRESSURE IN HPA 1009.7 1013.3 1011.1 1007.2 999.1 1004.9 995.8 1004.8 1007.4 1013.6 1016.0 1007.5 995.8 DAY 3 17 6 4 16 10 7 1 19 24 4 31 MEAN QNH PRESSURE IN HPA 1020.7 1022.5 1019.9 1015.0 1011.2 1010.2 1005.8 1008.2 1014.6 1018.0 1022.2 1017.6 1015.5 MAX. QNH PRESSURE IN HPA 1029.8 1032.8 1028.3 1027.7 1022.6 1019.1 1016.3 1015.0 1023.9 1025.4 1028.7 1032.4 1032.8 DAY 10 22 11 28 4 17 11 27 26 12 26 16 MIN. QNH PRESSURE IN HPA 1006.9 1010.5 1008.3 1004.4 996.3 1002.1 993.0 1002.0 1004.6 1010.8 1013.2 1004.7 993.0 DAY 3 17 6 4 16 10 7 1 19 24 4 31 MEAN QFF PRESSURE IN HPA 1020.9 1022.7 1020.1 1015.3 1011.6 1010.6 1006.2 1008.6 1014.9 1018.3 1022.4 1017.9 1015.8 MAX. QFF PRESSURE IN HPA 1030.0 1033.0 1028.5 1028.0 1022.9 1019.5 1016.7 1015.4 1024.2 1025.7 1028.9 1032.6 1033.0 DAY 10 22 11 28 4 17 11 27 26 12 26 16 MIN. QFF PRESSURE IN HPA 1007.1 1010.8 1008.5 1004.7 996.7 1002.5 993.5 1002.4 1005.0 1011.1 1013.5 1004.9 993.5 DAY 3 17 6 4 16 10 7 1 19 24 4 31 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1023.5 1025.6 1023.0 1018.3 1014.5 1013.4 1009.2 1011.9 1018.1 1020.9 1025.3 1020.5 1018.7 MAX. QFE PRESSURE IN HPA 1032.5 1034.9 1030.3 1031.2 1026.0 1022.1 1019.3 1018.1 1027.7 1028.9 1032.3 1035.7 1035.7 DAY 10 22 11 28 4 17 11 26 26 12 26 16 MIN. QFE PRESSURE IN HPA 1010.2 1014.1 1011.1 1005.9 997.6 1003.6 996.1 1004.8 1009.1 1013.3 1014.6 1007.8 996.1 DAY 3 16 6 4 16 10 7 1 19 24 30 31 MEAN QNH PRESSURE IN HPA 1020.7 1022.7 1020.2 1015.5 1011.7 1010.6 1006.4 1009.1 1015.3 1018.1 1022.4 1017.7 1015.9 MAX. QNH PRESSURE IN HPA 1029.7 1032.0 1027.5 1028.4 1023.2 1019.3 1016.5 1015.3 1024.9 1026.1 1029.5 1032.8 1032.8 DAY 10 22 11 28 4 17 11 26 26 12 26 16 MIN. QNH PRESSURE IN HPA 1007.4 1011.3 1008.3 1003.1 994.8 1000.8 993.3 1002.0 1006.3 1010.5 1011.8 1005.0 993.3 DAY 3 16 6 4 16 10 7 1 19 24 30 31 MEAN QFF PRESSURE IN HPA 1020.9 1023.0 1020.4 1015.8 1012.0 1011.0 1006.8 1009.5 1015.7 1018.5 1022.7 1017.9 1016.2 MAX. QFF PRESSURE IN HPA 1029.9 1032.2 1027.7 1028.7 1023.5 1019.7 1016.9 1015.7 1025.2 1026.4 1029.7 1033.1 1033.1 DAY 10 22 11 28 4 17 11 26 26 12 26 16 MIN. QFF PRESSURE IN HPA 1007.6 1011.5 1008.5 1003.4 995.2 1001.2 993.8 1002.4 1006.7 1010.8 1012.1 1005.3 993.8 DAY 3 16 6 4 16 10 7 1 20 24 30 31 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1023.2 1025.2 1022.5 1018.0 1014.1 1013.2 1009.1 1011.7 1017.9 1020.6 1025.0 1020.3 1018.4 MAX. QFE PRESSURE IN HPA 1032.4 1034.0 1029.6 1029.8 1024.5 1021.4 1018.3 1018.3 1027.3 1028.6 1033.0 1035.4 1035.4 DAY 10 21 10 28 4 17 11 26 26 12 26 16 MIN. QFE PRESSURE IN HPA 1011.6 1011.1 1010.5 1008.9 999.1 1003.6 999.4 1004.6 1008.1 1012.7 1013.7 1007.8 999.1 DAY 31 16 6 4 21 10 7 1 18 24 30 31 MEAN QNH PRESSURE IN HPA 1020.4 1022.3 1019.7 1015.2 1011.3 1010.4 1006.3 1008.9 1015.1 1017.8 1022.1 1017.4 1015.6 MAX. QNH PRESSURE IN HPA 1029.6 1031.1 1026.8 1027.0 1021.7 1018.6 1015.5 1015.5 1024.5 1025.8 1030.2 1032.5 1032.5 DAY 10 21 10 28 4 17 11 26 26 12 26 16 MIN. QNH PRESSURE IN HPA 1008.8 1008.3 1007.7 1006.1 996.3 1000.8 996.6 1001.8 1005.3 1009.9 1010.9 1005.0 996.3 DAY 31 16 6 4 21 10 7 1 18 24 30 31 MEAN QFF PRESSURE IN HPA 1020.6 1022.6 1019.9 1015.5 1011.7 1010.8 1006.7 1009.3 1015.4 1018.2 1022.4 1017.7 1015.9 MAX. QFF PRESSURE IN HPA 1029.8 1031.4 1027.0 1027.3 1022.0 1019.0 1015.9 1015.9 1024.8 1026.1 1030.4 1032.8 1032.8 DAY 10 21 10 28 4 17 11 26 26 12 26 16 MIN. QFF PRESSURE IN HPA 1009.1 1008.5 1007.9 1006.4 996.7 1001.2 997.1 1002.2 1005.7 1010.2 1011.2 1005.3 996.7 DAY 31 16 6 4 21 10 7 1 18 24 30 31 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.4 6.6 7.9 12.1 15.9 22.5 24.4 23.1 21.5 16.8 13.4 9.0 14.9 MINIMUN AIR TEMPERATURE (C) 2.2 3.1 5.1 9.5 13.1 19.5 21.6 20.2 18.2 12.8 9.5 5.9 11.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 7 23 9 2 0 0 0 41 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 7 1 0 0 0 0 0 0 0 0 0 1 9 TEMPERATURE RECORDS LOWEST(C) -2.2 0.0 0.2 6.4 6.0 14.8 17.4 17.0 15.0 8.8 2.4 -0.5 -2.2 DAY 29 12 11 4 5 8 15 13 30 17 28 29 MAXIMUM AIR TEMPERATURE (C) 9.5 10.7 11.4 15.2 18.8 25.6 27.7 26.7 25.3 21.4 17.8 12.6 18.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 1 1 0 0 0 0 0 2 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 13.6 16.4 22.0 25.4 26.0 30.0 30.0 29.0 28.0 29.8 27.2 17.6 30.0 DAY 19 6 31 21 30 19 3 23 7 24 23 14 DIF. BETWEEN (MAX.-MIN.) (C) 7.3 7.6 6.3 5.7 5.7 6.1 6.1 6.5 7.1 8.6 8.3 6.7 6.9 MEAN DAILY TEMP. (MDT) (C) 5.8 6.9 8.2 12.3 16.0 22.5 24.6 23.5 21.7 17.1 13.6 9.3 15.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 1.7 58.1 116.9 77.7 35.6 0.0 0.0 0.0 290.2 HEATING DEG. DAYS(BASE 18 0C) 376.8 321.0 303.1 169.7 79.7 0.4 0.0 0.0 3.8 40.2 133.7 271.1 1699.6 DEWPOINT (MEAN C) 2.1 3.2 4.9 10.1 13.8 19.8 21.3 20.2 18.8 14.1 10.3 6.4 12.1 MIXING RATIO (G/KG) 4.45 4.79 5.46 7.70 10.02 14.63 16.09 14.94 13.69 10.11 7.91 6.05 9.65 VAPOUR PRESSURE (HPA) 7.26 7.78 8.88 12.44 16.12 23.24 25.49 23.82 21.92 16.30 12.82 9.84 15.49 SATURATION DEF. (HPA) 1.90 2.20 2.01 1.86 2.46 4.49 5.40 4.85 4.23 3.28 3.10 1.83 3.14 RELATIVE HUMIDITY (MEAN %) 81 80 83 88 88 85 84 84 85 85 83 85 84 RELATIVE HUMIDITY (MAX. %) 92 93 92 96 96 94 94 94 95 95 94 94 94 RELATIVE HUMIDITY (MIN. %) 64 63 69 78 76 75 71 73 73 71 68 72 71 RELATIVE HUMIDITY (MEAN% 03UTC) 84 86 87 92 93 90 91 90 92 92 89 88 90 RELATIVE HUMIDITY (MEAN% 09UTC) 71 70 74 82 81 78 74 76 76 75 73 75 75 RELATIVE HUMIDITY (MEAN% 15UTC) 86 83 83 87 85 81 81 81 85 88 88 89 85 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 172.3 115.6 104.1 115.2 80.1 29.2 100.9 65.5 189.2 206.6 283.3 74.6 1536.6 DAYS WITH PRECIPITATION >=10 4 2 4 4 4 1 2 2 5 4 6 2 40 DAYS WITH PRECIPITATION >= 5 7 9 5 7 7 3 3 4 7 4 7 8 71 DAYS WITH PRECIPITATION >= 1 12 11 9 13 9 5 6 8 10 5 9 9 106 DAYS WITH PRECIPITATION 12 12 12 18 15 11 9 12 14 9 11 11 146 GREATEST DAILY PRECIPITATION 63.0 38.0 45.0 28.1 18.1 11.8 71.0 26.2 84.3 80.0 90.0 19.0 90.0 DAY 3 15 24 18 1 7 11 29 26 15 26 18 DAY WITH THUNDER STORM 2 0 0 1 2 3 0 0 0 0 1 0 9 DAYS WITH SNOW OR SLEET 3 0 1 0 0 0 0 0 0 0 0 0 4 DAYS WITH DUST 1 0 0 0 0 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 315 270 315 90 90 270 270 PREVAILING WIND SPEED(KNOTS) 7.0 8.0 7.9 8.3 9.1 7.7 6.6 6.4 6.3 7.2 7.3 6.8 7.9 PREVAILING WIND PERCENT 18.5 18.1 14.5 13.8 6.9 7.9 10.1 4.4 6.7 6.9 11.7 12.9 9.9 CALMS PERCENT OF WIND 71.0 60.3 68.5 57.5 74.6 69.2 75.8 81.9 80.4 77.0 68.8 81.5 72.3 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 274 292 297 307 310 334 313 305 309 37 324 279 302 VECTOR WIND MAGNITUDE(KNOTS) 1.5 1.1 1.0 1.4 0.7 0.8 1.0 0.4 0.7 0.3 0.2 1.0 0.8 WIND STEADINESES (MEAN %) 75.0 36.7 47.6 42.4 41.2 40.0 71.4 44.4 58.3 16.7 8.0 83.3 42.1 WIND SPEED (MEAN KNOTS) 2.0 3.0 2.1 3.3 1.7 2.0 1.4 0.9 1.2 1.8 2.5 1.2 1.9 FASTEST WIND DIRECTION 300 100 290 300 290 280 310 330 270 270 270 290 270 FASTEST WIND SPEED (KNOTS) 19 16 23 19 19 23 17 12 19 29 31 14 31 DAY 2 6 24 13 18 3 7 1 28 26 6 2 DAYS WITH SKY CLEAR (0-2)/8 12 5 11 6 8 12 10 9 12 12 13 5 115 DAYS WITH P.CLOUDY (3-6)/8 9 12 6 8 9 11 10 9 11 10 9 12 116 DAYS WITH CLOUDY (7-8)/8 10 12 14 16 14 7 11 13 7 9 8 14 135 DAYS WITH VISIBILITY =< 2 KM 3 0 4 8 3 1 4 2 4 3 5 1 38 DURATION OF SUNSHINE HOURS 113.6 112.8 132.4 107.3 157.7 209.3 168.3 133.4 164.6 155.9 138.7 75.8 1669.8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1023.2 1019.1 1022.5 1018.5 1018.7 1011.7 1011.8 1016.2 1018.5 1019.9 1021.1 1022.4 1018.6 MAX. QFE PRESSURE IN HPA 1035.6 1033.7 1035.2 1029.6 1033.3 1023.3 1021.5 1024.4 1029.4 1030.9 1035.0 1031.9 1035.6 DAY-HOUR 4- 6 15-15 11-18 30-18 2- 9 6-18 11-21 31- 6 29- 6 15-18 3- 6 2-18 MIN. QFE PRESSURE IN HPA 1005.5 1008.2 1002.6 1005.5 1004.0 1004.0 1004.0 1006.1 1007.9 1007.5 1004.0 1011.3 1002.6 DAY-HOUR 30-12 7-18 30-12 12-18 9-12 17-15 9-15 24-15 25-12 26- 9 23- 0 14- 0 MEAN QNH PRESSURE IN HPA 1020.4 1016.3 1019.7 1015.7 1015.9 1008.9 1009.0 1013.4 1015.6 1017.0 1018.2 1019.5 1015.8 MAX. QNH PRESSURE IN HPA 1032.7 1030.9 1032.3 1026.8 1030.5 1020.5 1018.7 1021.6 1026.6 1028.1 1032.1 1029.1 1032.7 DAY-HOUR 4- 6 15-15 11-18 30-18 2- 9 6-18 11-21 31- 6 29- 6 15-18 3- 6 2-18 MIN. QNH PRESSURE IN HPA 1002.7 1005.4 999.8 1002.7 1001.2 1001.2 1001.2 1003.3 1005.1 1004.7 1001.2 1008.5 999.8 DAY-HOUR 30-12 7-18 30-12 12-18 9-12 17-15 9-15 24-15 25-12 26- 9 23- 0 14- 0 MEAN QFF PRESSURE IN HPA 1020.6 1016.5 1019.9 1016.0 1016.2 1009.3 1009.4 1013.8 1016.0 1017.4 1018.5 1019.8 1016.1 MAX. QFF PRESSURE IN HPA 1032.9 1031.0 1032.5 1027.0 1030.7 1020.8 1019.0 1021.9 1026.9 1028.3 1032.4 1029.3 1032.9 DAY-HOUR 4- 6 15-15 11-18 30-18 2- 9 6-18 11-21 31- 6 29- 6 15-18 3- 6 2-18 MIN. QFF PRESSURE IN HPA 1002.9 1005.7 1000.1 1003.1 1001.5 1001.6 1001.6 1003.7 1005.5 1005.1 1001.6 1008.8 1000.1 DAY-HOUR 30-12 7-18 30-12 12-18 9-12 17-15 9-15 24-15 25-12 26- 9 23- 0 14- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1022.8 1018.8 1021.9 1017.7 1018.3 1011.8 1011.6 1015.7 1017.9 1019.9 1020.7 1022.1 1018.3 MAX. QFE PRESSURE IN HPA 1034.6 1031.2 1033.6 1023.4 1031.7 1020.6 1021.1 1023.4 1028.1 1029.3 1033.4 1028.5 1034.6 DAY 9 16 12 30 2 7 12 31 29 15 4 3 MIN. QFE PRESSURE IN HPA 1007.4 1008.6 1002.7 1006.5 1004.3 1004.2 1006.0 1009.0 1010.9 1009.6 1004.0 1011.3 1002.7 DAY 1 19 31 13 10 28 3 24 25 24 23 14 MEAN QNH PRESSURE IN HPA 1019.9 1016.0 1019.1 1014.9 1015.5 1009.0 1008.7 1012.9 1015.1 1017.0 1017.9 1019.3 1015.5 MAX. QNH PRESSURE IN HPA 1031.7 1028.4 1030.8 1020.6 1028.9 1017.8 1018.3 1020.6 1025.3 1026.5 1030.6 1025.7 1031.7 DAY 9 16 12 30 2 7 12 31 29 15 4 3 MIN. QNH PRESSURE IN HPA 1004.6 1005.8 999.9 1003.7 1001.5 1001.4 1003.2 1006.2 1008.1 1006.8 1001.2 1008.5 999.9 DAY 1 19 31 13 10 28 3 24 25 24 23 14 MEAN QFF PRESSURE IN HPA 1020.2 1016.2 1019.3 1015.2 1015.8 1009.4 1009.1 1013.3 1015.5 1017.4 1018.2 1019.6 1015.8 MAX. QFF PRESSURE IN HPA 1031.9 1028.5 1031.0 1020.8 1029.1 1018.1 1018.6 1020.9 1025.6 1026.8 1030.8 1025.9 1031.9 DAY 9 16 12 30 2 7 12 31 29 15 4 3 MIN. QFF PRESSURE IN HPA 1004.9 1006.0 1000.2 1004.0 1001.8 1001.8 1003.6 1006.6 1008.5 1007.1 1001.6 1008.8 1000.2 DAY 1 19 31 13 10 28 3 24 25 24 23 14 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1023.0 1019.2 1022.6 1018.5 1018.7 1012.1 1012.1 1016.3 1018.8 1020.4 1021.1 1022.3 1018.8 MAX. QFE PRESSURE IN HPA 1034.3 1029.9 1034.3 1025.5 1032.4 1021.4 1021.2 1024.0 1028.1 1029.9 1034.0 1028.4 1034.3 DAY 9 16 9 23 2 7 12 31 29 15 3 2 MIN. QFE PRESSURE IN HPA 1007.4 1008.6 1004.5 1008.1 1004.8 1005.0 1006.4 1009.5 1010.9 1009.6 1005.5 1011.5 1004.5 DAY 1 19 31 13 10 28 26 24 25 24 23 14 MEAN QNH PRESSURE IN HPA 1020.2 1016.3 1019.8 1015.7 1015.9 1009.3 1009.3 1013.5 1016.0 1017.5 1018.3 1019.4 1015.9 MAX. QNH PRESSURE IN HPA 1031.4 1027.1 1031.4 1022.7 1029.6 1018.6 1018.4 1021.2 1025.3 1027.1 1031.1 1025.6 1031.4 DAY 9 16 9 23 2 7 12 31 29 15 3 2 MIN. QNH PRESSURE IN HPA 1004.6 1005.8 1001.7 1005.3 1002.0 1002.2 1003.6 1006.7 1008.1 1006.8 1002.7 1008.7 1001.7 DAY 1 19 31 13 10 28 26 24 25 24 23 14 MEAN QFF PRESSURE IN HPA 1020.4 1016.6 1020.0 1015.9 1016.2 1009.7 1009.7 1013.9 1016.3 1017.9 1018.6 1019.7 1016.2 MAX. QFF PRESSURE IN HPA 1031.6 1027.2 1031.6 1022.9 1029.8 1018.9 1018.7 1021.5 1025.6 1027.4 1031.5 1025.8 1031.6 DAY 9 16 9 23 2 7 12 31 29 15 3 2 MIN. QFF PRESSURE IN HPA 1004.9 1006.0 1002.0 1005.6 1002.4 1002.6 1004.0 1007.1 1008.5 1007.1 1003.1 1008.9 1002.0 DAY 1 19 31 13 10 28 26 24 25 24 23 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1024.0 1019.8 1023.4 1019.4 1019.2 1012.0 1012.6 1016.9 1019.4 1021.0 1021.9 1023.3 1019.4 MAX. QFE PRESSURE IN HPA 1035.6 1030.2 1034.8 1026.7 1033.2 1019.5 1021.2 1024.4 1029.4 1030.7 1035.0 1030.5 1035.6 DAY 4 15 11 30 2 8 12 31 29 15 3 2 MIN. QFE PRESSURE IN HPA 1009.4 1010.8 1005.3 1009.8 1005.2 1005.0 1007.6 1009.9 1010.9 1010.1 1007.6 1013.2 1005.0 DAY 30 19 30 21 9 17 17 24 25 24 22 15 MEAN QNH PRESSURE IN HPA 1021.2 1017.0 1020.5 1016.6 1016.4 1009.2 1009.8 1014.1 1016.6 1018.2 1019.1 1020.5 1016.6 MAX. QNH PRESSURE IN HPA 1032.7 1027.4 1031.9 1023.9 1030.4 1016.7 1018.4 1021.6 1026.6 1027.9 1032.1 1027.7 1032.7 DAY 4 15 11 30 2 8 12 31 29 15 3 2 MIN. QNH PRESSURE IN HPA 1006.6 1008.0 1002.5 1007.0 1002.4 1002.2 1004.8 1007.1 1008.1 1007.3 1004.8 1010.4 1002.2 DAY 30 19 30 21 9 17 17 24 25 24 22 15 MEAN QFF PRESSURE IN HPA 1021.4 1017.2 1020.8 1016.9 1016.7 1009.6 1010.2 1014.5 1017.0 1018.5 1019.4 1020.8 1016.9 MAX. QFF PRESSURE IN HPA 1032.9 1027.6 1032.1 1024.1 1030.6 1017.0 1018.7 1021.9 1026.9 1028.2 1032.4 1027.9 1032.9 DAY 4 15 11 30 2 8 12 31 29 15 3 2 MIN. QFF PRESSURE IN HPA 1006.8 1008.2 1002.8 1007.3 1002.7 1002.6 1005.2 1007.5 1008.5 1007.6 1005.1 1010.7 1002.6 DAY 30 19 30 21 9 17 17 24 25 24 22 15 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1023.2 1019.3 1022.9 1019.0 1019.1 1011.8 1012.3 1016.6 1018.8 1020.0 1020.8 1022.2 1018.8 MAX. QFE PRESSURE IN HPA 1034.4 1031.6 1034.8 1027.9 1033.3 1020.2 1020.8 1023.7 1029.2 1030.4 1034.4 1030.4 1034.8 DAY 4 15 11 30 2 6 12 31 29 15 3 2 MIN. QFE PRESSURE IN HPA 1006.8 1009.8 1004.4 1010.4 1005.4 1004.7 1006.6 1008.6 1008.5 1007.5 1006.5 1011.7 1004.4 DAY 30 7 30 21 9 17 9 24 25 26 22 14 MEAN QNH PRESSURE IN HPA 1020.3 1016.4 1020.1 1016.1 1016.3 1009.0 1009.5 1013.8 1016.0 1017.1 1018.0 1019.4 1016.0 MAX. QNH PRESSURE IN HPA 1031.5 1028.8 1031.9 1025.1 1030.5 1017.4 1018.0 1020.9 1026.4 1027.6 1031.5 1027.6 1031.9 DAY 4 15 11 30 2 6 12 31 29 15 3 2 MIN. QNH PRESSURE IN HPA 1004.0 1007.0 1001.6 1007.6 1002.6 1001.9 1003.8 1005.8 1005.7 1004.7 1003.7 1008.9 1001.6 DAY 30 7 30 21 9 17 9 24 25 26 22 14 MEAN QFF PRESSURE IN HPA 1020.6 1016.7 1020.3 1016.4 1016.6 1009.4 1009.9 1014.2 1016.4 1017.5 1018.3 1019.6 1016.3 MAX. QFF PRESSURE IN HPA 1031.8 1029.0 1032.1 1025.3 1030.7 1017.7 1018.3 1021.3 1026.7 1027.9 1031.9 1027.8 1032.1 DAY 4 15 11 30 2 6 12 31 29 15 3 2 MIN. QFF PRESSURE IN HPA 1004.2 1007.3 1001.9 1007.9 1002.9 1002.3 1004.2 1006.2 1006.1 1005.1 1004.0 1009.2 1001.9 DAY 30 7 30 21 9 17 9 24 25 26 22 14 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1022.7 1018.5 1022.2 1018.2 1018.6 1011.4 1011.4 1015.8 1018.1 1019.1 1020.5 1021.8 1018.2 MAX. QFE PRESSURE IN HPA 1033.6 1032.4 1034.4 1027.9 1033.2 1020.2 1020.6 1023.0 1028.5 1029.9 1033.8 1030.0 1034.4 DAY 27 15 11 30 2 6 12 31 29 15 3 2 MIN. QFE PRESSURE IN HPA 1005.5 1008.5 1002.6 1007.5 1004.0 1004.3 1004.7 1006.8 1007.9 1007.9 1005.8 1012.2 1002.6 DAY 30 7 30 22 9 17 9 24 25 26 22 14 MEAN QNH PRESSURE IN HPA 1019.9 1015.7 1019.4 1015.4 1015.8 1008.6 1008.6 1013.0 1015.2 1016.3 1017.7 1018.9 1015.4 MAX. QNH PRESSURE IN HPA 1030.8 1029.6 1031.5 1025.1 1030.4 1017.4 1017.8 1020.2 1025.7 1027.1 1030.9 1027.2 1031.5 DAY 27 15 11 30 2 6 12 31 29 15 3 2 MIN. QNH PRESSURE IN HPA 1002.7 1005.7 999.8 1004.7 1001.2 1001.5 1001.9 1004.0 1005.1 1005.1 1003.0 1009.4 999.8 DAY 30 7 30 22 9 17 9 24 25 26 22 14 MEAN QFF PRESSURE IN HPA 1020.1 1015.9 1019.6 1015.7 1016.1 1009.0 1009.0 1013.4 1015.6 1016.6 1018.0 1019.2 1015.7 MAX. QFF PRESSURE IN HPA 1030.9 1029.8 1031.7 1025.3 1030.6 1017.7 1018.1 1020.5 1026.0 1027.4 1031.3 1027.4 1031.7 DAY 27 15 11 30 2 6 12 31 29 15 3 2 MIN. QFF PRESSURE IN HPA 1002.9 1006.0 1000.1 1005.0 1001.5 1001.9 1002.3 1004.4 1005.5 1005.5 1003.4 1009.7 1000.1 DAY 30 7 30 22 9 17 9 24 25 26 22 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1023.5 1019.2 1022.4 1018.2 1018.5 1011.1 1011.1 1015.6 1018.1 1019.4 1021.3 1022.4 1018.4 MAX. QFE PRESSURE IN HPA 1034.4 1033.7 1034.7 1028.7 1033.3 1022.1 1020.3 1022.9 1028.7 1030.1 1034.3 1031.7 1034.7 DAY 8 15 11 30 2 6 12 30 29 15 3 2 MIN. QFE PRESSURE IN HPA 1006.8 1009.7 1002.6 1006.7 1005.3 1004.0 1004.0 1006.1 1010.6 1008.3 1005.9 1012.5 1002.6 DAY 30 7 30 12 9 17 9 24 25 24 22 14 MEAN QNH PRESSURE IN HPA 1020.7 1016.3 1019.6 1015.3 1015.7 1008.3 1008.3 1012.8 1015.3 1016.6 1018.4 1019.6 1015.6 MAX. QNH PRESSURE IN HPA 1031.5 1030.9 1031.8 1025.9 1030.5 1019.3 1017.5 1020.1 1025.9 1027.3 1031.4 1028.9 1031.8 DAY 8 15 11 30 2 6 12 30 29 15 3 2 MIN. QNH PRESSURE IN HPA 1004.0 1006.9 999.8 1003.9 1002.5 1001.2 1001.2 1003.3 1007.8 1005.5 1003.1 1009.7 999.8 DAY 30 7 30 12 9 17 9 24 25 24 22 14 MEAN QFF PRESSURE IN HPA 1020.9 1016.6 1019.8 1015.6 1016.0 1008.7 1008.7 1013.2 1015.6 1016.9 1018.7 1019.8 1015.9 MAX. QFF PRESSURE IN HPA 1031.8 1031.0 1032.0 1026.1 1030.7 1019.6 1017.8 1020.4 1026.2 1027.5 1031.7 1029.1 1032.0 DAY 8 15 11 30 2 6 12 30 29 15 3 2 MIN. QFF PRESSURE IN HPA 1004.2 1007.1 1000.1 1004.2 1002.8 1001.6 1001.6 1003.7 1008.2 1005.8 1003.4 1009.9 1000.1 DAY 30 7 30 12 9 17 9 24 25 24 22 14 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1023.6 1019.4 1022.8 1018.8 1018.8 1011.7 1011.6 1016.4 1018.6 1019.8 1021.3 1022.6 1018.8 MAX. QFE PRESSURE IN HPA 1034.8 1032.6 1035.2 1029.6 1033.3 1023.3 1021.4 1023.6 1029.1 1030.9 1034.0 1031.9 1035.2 DAY 8 15 11 30 2 6 11 30 29 15 3 2 MIN. QFE PRESSURE IN HPA 1007.5 1008.2 1004.9 1005.5 1007.9 1004.0 1004.1 1008.4 1012.3 1008.3 1005.0 1012.2 1004.0 DAY 30 7 30 12 9 18 9 24 17 24 22 14 MEAN QNH PRESSURE IN HPA 1020.8 1016.5 1019.9 1016.0 1016.0 1008.9 1008.8 1013.6 1015.8 1016.9 1018.4 1019.8 1016.0 MAX. QNH PRESSURE IN HPA 1031.9 1029.8 1032.3 1026.8 1030.5 1020.5 1018.6 1020.8 1026.3 1028.1 1031.1 1029.1 1032.3 DAY 8 15 11 30 2 6 11 30 29 15 3 2 MIN. QNH PRESSURE IN HPA 1004.7 1005.4 1002.1 1002.7 1005.1 1001.2 1001.3 1005.6 1009.5 1005.5 1002.2 1009.4 1001.2 DAY 30 7 30 12 9 18 9 24 17 24 22 14 MEAN QFF PRESSURE IN HPA 1021.0 1016.8 1020.2 1016.3 1016.3 1009.3 1009.2 1014.0 1016.1 1017.3 1018.7 1020.0 1016.3 MAX. QFF PRESSURE IN HPA 1032.1 1029.9 1032.5 1027.0 1030.7 1020.8 1018.9 1021.1 1026.6 1028.3 1031.4 1029.3 1032.5 DAY 8 15 11 30 2 6 11 30 29 15 3 2 MIN. QFF PRESSURE IN HPA 1004.9 1005.7 1002.4 1003.1 1005.4 1001.6 1001.7 1006.0 1009.9 1005.9 1002.6 1009.7 1001.6 DAY 30 7 30 12 9 18 9 24 17 24 22 14 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1023.1 1019.1 1022.0 1018.7 1018.5 1011.7 1011.6 1016.3 1018.2 1019.6 1021.0 1022.2 1018.5 MAX. QFE PRESSURE IN HPA 1034.6 1031.6 1034.2 1029.6 1032.1 1020.9 1021.5 1024.2 1028.3 1029.6 1033.8 1030.1 1034.6 DAY 8 15 11 30 1 6 11 30 28 15 3 2 MIN. QFE PRESSURE IN HPA 1008.2 1008.7 1003.0 1005.8 1006.2 1004.0 1005.2 1009.3 1011.6 1009.6 1005.0 1011.5 1003.0 DAY 30 7 30 12 8 27 2 18 6 10 22 14 MEAN QNH PRESSURE IN HPA 1020.3 1016.3 1019.2 1015.8 1015.6 1008.9 1008.7 1013.5 1015.4 1016.8 1018.2 1019.4 1015.7 MAX. QNH PRESSURE IN HPA 1031.7 1028.8 1031.3 1026.8 1029.3 1018.1 1018.7 1021.4 1025.5 1026.8 1030.9 1027.3 1031.7 DAY 8 15 11 30 1 6 11 30 28 15 3 2 MIN. QNH PRESSURE IN HPA 1005.4 1005.9 1000.2 1003.0 1003.4 1001.2 1002.4 1006.5 1008.8 1006.8 1002.2 1008.7 1000.2 DAY 30 7 30 12 8 27 2 18 6 10 22 14 MEAN QFF PRESSURE IN HPA 1020.5 1016.5 1019.4 1016.1 1016.0 1009.3 1009.1 1013.9 1015.8 1017.1 1018.5 1019.7 1016.0 MAX. QFF PRESSURE IN HPA 1031.9 1028.9 1031.6 1027.0 1029.5 1018.4 1019.0 1021.7 1025.8 1027.0 1031.2 1027.5 1031.9 DAY 8 15 11 30 1 6 11 30 28 15 3 2 MIN. QFF PRESSURE IN HPA 1005.6 1006.2 1000.5 1003.3 1003.7 1001.6 1002.8 1006.9 1009.2 1007.1 1002.6 1009.0 1000.5 DAY 30 7 30 12 8 27 2 18 6 10 22 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.1 5.2 8.9 13.3 18.4 21.7 24.0 25.0 21.9 16.4 9.9 7.6 14.9 MINIMUN AIR TEMPERATURE (C) 2.8 2.9 6.0 10.5 15.5 18.7 20.9 21.8 19.3 12.4 7.5 4.9 11.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 3 14 23 5 0 0 0 45 DAYS WITH MINIMUM TEMP. <=-4 0 1 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH FREEZING MIN.<= 0 6 5 0 0 0 0 0 0 0 0 0 1 12 TEMPERATURE RECORDS LOWEST(C) -1.6 -4.8 4.0 6.0 9.4 16.0 17.4 20.0 15.4 8.6 1.6 -0.2 -4.8 DAY 21 18 6 24 1 6 14 4 30 9 15 7 MAXIMUM AIR TEMPERATURE (C) 10.1 7.8 12.4 16.9 21.4 24.7 27.2 28.4 24.9 20.7 13.0 10.7 18.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 0 2 5 0 0 0 0 7 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.0 12.7 20.4 23.6 28.0 28.5 30.4 31.0 29.6 26.0 18.6 17.4 31.0 DAY 28 8 30 10 15 17 25 12 1 1 8 23 DIF. BETWEEN (MAX.-MIN.) (C) 7.3 4.9 6.4 6.4 5.9 6.0 6.3 6.6 5.6 8.3 5.5 5.8 6.3 MEAN DAILY TEMP. (MDT) (C) 6.4 5.3 9.2 13.7 18.5 21.7 24.1 25.1 22.1 16.5 10.3 7.8 15.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 3.4 30.8 95.3 126.4 41.4 0.0 0.0 0.0 297.4 HEATING DEG. DAYS(BASE 18 0C) 358.2 354.7 273.4 128.8 30.4 0.0 0.0 0.0 0.1 49.4 231.2 317.0 1743.2 DEWPOINT (MEAN C) 3.4 3.1 5.7 10.2 15.1 19.4 21.8 23.0 19.7 13.7 7.8 5.7 12.4 MIXING RATIO (G/KG) 4.88 4.76 5.71 7.77 10.83 14.26 16.58 17.82 14.56 9.76 6.61 5.64 9.93 VAPOUR PRESSURE (HPA) 7.96 7.79 9.27 12.54 17.37 22.69 26.31 28.22 23.21 15.83 10.78 9.22 15.93 SATURATION DEF. (HPA) 1.72 1.20 2.30 3.00 4.09 3.60 3.77 3.85 3.34 3.17 1.69 1.37 2.76 RELATIVE HUMIDITY (MEAN %) 85 87 82 82 82 87 88 89 88 85 88 88 86 RELATIVE HUMIDITY (MAX. %) 96 96 94 94 93 96 96 97 97 96 96 96 96 RELATIVE HUMIDITY (MIN. %) 71 76 67 70 70 76 79 79 78 70 74 76 74 RELATIVE HUMIDITY (MEAN% 03UTC) 85 90 89 88 88 92 93 94 94 89 92 92 91 RELATIVE HUMIDITY (MEAN% 09UTC) 78 78 71 75 76 80 81 83 80 74 79 79 78 RELATIVE HUMIDITY (MEAN% 15UTC) 91 89 82 80 79 82 84 86 88 89 91 90 86 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 71.5 126.9 46.2 45.6 19.6 98.2 51.9 17.4 354.0 203.8 474.7 63.5 1573.3 DAYS WITH PRECIPITATION >=10 3 5 1 2 0 3 1 0 6 7 10 4 42 DAYS WITH PRECIPITATION >= 5 5 8 3 3 2 5 3 1 9 10 16 4 69 DAYS WITH PRECIPITATION >= 1 9 10 8 4 6 8 6 5 11 12 20 6 105 DAYS WITH PRECIPITATION 19 16 12 7 11 12 8 9 17 12 22 11 156 GREATEST DAILY PRECIPITATION 17.2 51.0 20.0 21.0 6.3 44.0 31.0 7.2 114.0 44.5 83.6 19.0 114.0 DAY 14 16 22 23 24 21 27 23 8 5 20 15 DAY WITH THUNDER STORM 0 0 0 0 0 1 0 2 0 1 0 0 4 DAYS WITH SNOW OR SLEET 0 2 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 1 1 WIND DIRECTION (PREVAILING) 270 270 90 315 270 90 315 315 270 90 270 270 270 PREVAILING WIND SPEED(KNOTS) 8.5 7.5 7.3 6.8 8.5 5.4 6.2 6.1 6.1 6.8 7.8 6.4 7.7 PREVAILING WIND PERCENT 25.0 22.8 13.3 9.6 10.5 7.5 8.1 7.3 11.7 6.5 27.1 12.1 12.2 CALMS PERCENT OF WIND 68.1 68.3 66.1 72.8 69.4 72.1 78.2 75.0 79.2 85.1 56.7 81.9 72.8 NO. OF WIND OBSERVATION 248 224 248 239 248 240 248 248 240 248 240 248 2919 VECTOR WIND DIRECTION (MEAN) 278 284 3 329 307 334 313 313 293 38 275 283 297 VECTOR WIND MAGNITUDE(KNOTS) 2.3 1.7 0.5 0.7 1.0 0.6 0.8 0.9 0.6 0.3 1.9 0.6 0.9 WIND STEADINESES (MEAN %) 88.5 70.8 19.2 41.2 47.6 35.3 61.5 64.3 50.0 27.3 63.3 54.5 50.0 WIND SPEED (MEAN KNOTS) 2.6 2.4 2.6 1.7 2.1 1.7 1.3 1.4 1.2 1.1 3.0 1.1 1.8 FASTEST WIND DIRECTION 320 270 320 300 270 270 300 310 350 280 310 270 270 FASTEST WIND SPEED (KNOTS) 23 41 29 29 29 16 17 19 14 21 29 19 41 DAY 29 15 8 19 13 7 18 29 21 27 10 5 DAYS WITH SKY CLEAR (0-2)/8 10 5 9 4 8 13 10 11 8 14 4 5 101 DAYS WITH P.CLOUDY (3-6)/8 10 4 10 14 9 7 7 11 8 4 4 12 100 DAYS WITH CLOUDY (7-8)/8 11 19 12 12 14 10 14 9 14 13 22 14 164 DAYS WITH VISIBILITY =< 2 KM 1 3 5 8 1 5 1 1 3 1 6 7 42 DURATION OF SUNSHINE HOURS 130.9 65.3 150.6 130.9 166.5 196.1 157.7 156.9 113.5 147.2 61.4 88.3 1565.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 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 1024.5 1025.6 1021.2 1017.1 1015.8 1013.2 1013.5 1013.8 1015.9 1025.4 1026.4 1025.5 1019.8 MAX. QFE PRESSURE IN HPA 1042.9 1038.4 1034.5 1028.7 1030.2 1027.9 1021.0 1020.2 1028.1 1032.6 1037.4 1035.9 1042.9 DAY-HOUR 6- 6 9- 6 16- 6 23- 6 9- 6 22- 6 27- 9 24- 9 22- 9 7- 6 21- 6 6- 6 MIN. QFE PRESSURE IN HPA 1008.3 1013.1 1003.3 1005.2 1007.9 1003.9 1002.4 1003.5 1004.3 1008.9 1007.0 1015.1 1002.4 DAY-HOUR 8- 9 6-18 8- 0 11-12 13-18 16-18 24-15 12-15 3-15 1- 9 10-12 13-12 MEAN QNH PRESSURE IN HPA 1021.6 1022.8 1018.4 1014.3 1012.9 1010.3 1010.7 1011.0 1013.1 1022.5 1023.5 1022.7 1017.0 MAX. QNH PRESSURE IN HPA 1040.0 1035.5 1031.6 1025.9 1027.4 1025.1 1018.2 1017.4 1025.3 1029.8 1034.5 1033.0 1040.0 DAY-HOUR 6- 6 9- 6 16- 6 23- 6 9- 6 22- 6 27- 9 24- 9 22- 9 7- 6 21- 6 6- 6 MIN. QNH PRESSURE IN HPA 1005.5 1010.3 1000.5 1002.4 1005.1 1001.1 999.6 1000.7 1001.5 1006.1 1004.2 1012.3 999.6 DAY-HOUR 8- 9 6-18 8- 0 11-12 13-18 16-18 24-15 12-15 3-15 1- 9 10-12 13-12 MEAN QFF PRESSURE IN HPA 1021.8 1023.0 1018.6 1014.6 1013.3 1010.7 1011.1 1011.4 1013.5 1022.8 1023.8 1022.9 1017.3 MAX. QFF PRESSURE IN HPA 1040.2 1035.8 1031.9 1026.1 1027.7 1025.4 1018.6 1017.8 1025.6 1030.1 1034.8 1033.3 1040.2 DAY-HOUR 6- 6 9- 6 16- 6 23- 6 9- 6 22- 6 27- 9 24- 9 22- 9 7- 6 21- 6 6- 6 MIN. QFF PRESSURE IN HPA 1005.7 1010.5 1000.8 1002.7 1005.4 1001.5 1000.0 1001.1 1001.9 1006.5 1004.5 1012.5 1000.0 DAY-HOUR 8- 9 6-18 8- 0 11-12 13-18 16-18 24-15 12-15 3-15 1- 9 10-12 13-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1024.1 1025.4 1020.7 1017.2 1015.2 1012.7 1013.2 1013.4 1016.0 1024.8 1026.1 1025.6 1019.5 MAX. QFE PRESSURE IN HPA 1039.5 1035.9 1032.1 1026.8 1029.6 1026.4 1019.5 1018.1 1027.0 1031.6 1036.6 1034.4 1039.5 DAY 6 9 16 23 9 22 27 24 23 20 21 6 MIN. QFE PRESSURE IN HPA 1008.3 1014.5 1003.3 1006.8 1008.4 1005.1 1004.7 1005.0 1005.8 1009.7 1011.7 1016.4 1003.3 DAY 29 21 8 11 16 17 25 13 14 1 10 5 MEAN QNH PRESSURE IN HPA 1021.3 1022.5 1017.9 1014.4 1012.4 1009.9 1010.4 1010.6 1013.2 1022.0 1023.3 1022.8 1016.7 MAX. QNH PRESSURE IN HPA 1036.6 1033.0 1029.3 1024.0 1026.8 1023.6 1016.7 1015.3 1024.2 1028.8 1033.7 1031.5 1036.6 DAY 6 9 16 23 9 22 27 24 23 20 21 6 MIN. QNH PRESSURE IN HPA 1005.5 1011.7 1000.5 1004.0 1005.6 1002.3 1001.9 1002.2 1003.0 1006.9 1008.9 1013.6 1000.5 DAY 29 21 8 11 16 17 25 13 14 1 10 5 MEAN QFF PRESSURE IN HPA 1021.5 1022.8 1018.1 1014.7 1012.8 1010.3 1010.8 1011.0 1013.6 1022.3 1023.5 1023.1 1017.0 MAX. QFF PRESSURE IN HPA 1036.8 1033.3 1029.5 1024.2 1027.0 1023.9 1017.1 1015.7 1024.5 1029.1 1034.0 1031.8 1036.8 DAY 6 9 16 23 9 22 27 24 23 20 21 6 MIN. QFF PRESSURE IN HPA 1005.8 1011.9 1000.8 1004.3 1006.0 1002.7 1002.3 1002.6 1003.4 1007.3 1009.2 1013.8 1000.8 DAY 29 21 8 11 23 17 25 13 14 1 10 5 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1024.2 1025.7 1021.3 1017.5 1015.8 1013.6 1013.9 1014.2 1016.4 1025.3 1026.3 1025.4 1020.0 MAX. QFE PRESSURE IN HPA 1040.6 1037.3 1032.9 1028.2 1029.9 1027.2 1020.2 1019.1 1026.9 1032.1 1037.1 1034.9 1040.6 DAY 6 9 16 23 9 22 27 3 22 20 21 6 MIN. QFE PRESSURE IN HPA 1009.8 1014.3 1005.3 1006.3 1008.5 1005.6 1006.8 1005.2 1008.3 1010.6 1010.8 1015.9 1005.2 DAY 29 21 8 11 31 28 24 12 14 1 10 5 MEAN QNH PRESSURE IN HPA 1021.4 1022.8 1018.4 1014.7 1013.0 1010.8 1011.1 1011.4 1013.6 1022.4 1023.5 1022.6 1017.1 MAX. QNH PRESSURE IN HPA 1037.7 1034.4 1030.1 1025.4 1027.1 1024.4 1017.4 1016.3 1024.1 1029.3 1034.2 1032.0 1037.7 DAY 6 9 16 23 9 22 27 3 22 20 21 6 MIN. QNH PRESSURE IN HPA 1007.0 1011.5 1002.5 1003.5 1005.7 1002.8 1004.0 1002.4 1005.5 1007.8 1008.0 1013.1 1002.4 DAY 29 21 8 11 31 28 24 12 14 1 10 5 MEAN QFF PRESSURE IN HPA 1021.6 1023.0 1018.7 1015.0 1013.4 1011.1 1011.5 1011.8 1014.0 1022.7 1023.7 1022.8 1017.4 MAX. QFF PRESSURE IN HPA 1037.9 1034.7 1030.3 1025.6 1027.3 1024.7 1017.8 1016.7 1024.4 1029.6 1034.5 1032.3 1037.9 DAY 6 9 16 23 9 22 27 3 22 20 21 6 MIN. QFF PRESSURE IN HPA 1007.3 1011.7 1002.8 1003.8 1006.1 1003.2 1004.4 1002.8 1005.9 1008.1 1008.3 1013.3 1002.8 DAY 29 21 8 11 31 28 24 12 14 1 10 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 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 1025.2 1026.5 1022.0 1017.9 1016.4 1014.0 1014.2 1014.7 1016.8 1026.2 1027.3 1026.3 1020.6 MAX. QFE PRESSURE IN HPA 1042.9 1038.4 1034.5 1028.7 1030.2 1027.9 1020.9 1020.0 1027.9 1032.6 1037.4 1035.9 1042.9 DAY 6 9 16 23 9 22 27 24 22 7 21 6 MIN. QFE PRESSURE IN HPA 1010.6 1015.4 1008.0 1006.0 1008.7 1007.1 1006.5 1005.9 1008.2 1010.3 1010.5 1017.5 1005.9 DAY 8 21 8 11 31 16 24 12 3 1 10 18 MEAN QNH PRESSURE IN HPA 1022.3 1023.7 1019.2 1015.1 1013.5 1011.2 1011.4 1011.9 1014.0 1023.4 1024.5 1023.5 1017.8 MAX. QNH PRESSURE IN HPA 1040.0 1035.5 1031.6 1025.9 1027.4 1025.1 1018.1 1017.2 1025.1 1029.8 1034.5 1033.0 1040.0 DAY 6 9 16 23 9 22 27 24 22 7 21 6 MIN. QNH PRESSURE IN HPA 1007.8 1012.6 1005.2 1003.2 1005.9 1004.3 1003.7 1003.1 1005.4 1007.5 1007.7 1014.7 1003.1 DAY 8 21 8 11 31 16 24 12 3 1 10 18 MEAN QFF PRESSURE IN HPA 1022.6 1023.9 1019.4 1015.4 1013.9 1011.6 1011.8 1012.3 1014.4 1023.7 1024.7 1023.7 1018.1 MAX. QFF PRESSURE IN HPA 1040.2 1035.8 1031.9 1026.1 1027.7 1025.4 1018.5 1017.6 1025.4 1030.1 1034.8 1033.3 1040.2 DAY 6 9 16 23 9 22 27 24 22 7 21 6 MIN. QFF PRESSURE IN HPA 1008.0 1012.8 1005.5 1003.6 1006.3 1004.7 1004.1 1003.5 1005.8 1007.9 1008.0 1014.9 1003.5 DAY 8 21 8 11 31 16 24 12 3 1 10 18 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1024.3 1025.8 1021.5 1017.1 1016.3 1013.8 1014.0 1014.3 1016.2 1025.5 1026.5 1025.3 1020.1 MAX. QFE PRESSURE IN HPA 1041.5 1038.1 1033.7 1027.6 1029.6 1027.2 1021.0 1020.2 1028.1 1032.2 1036.7 1033.5 1041.5 DAY 6 9 16 23 9 22 27 24 22 7 21 6 MIN. QFE PRESSURE IN HPA 1008.3 1015.4 1007.4 1005.3 1010.3 1006.2 1004.9 1005.6 1006.5 1008.9 1008.9 1016.5 1004.9 DAY 8 21 8 11 17 16 24 12 3 1 10 18 MEAN QNH PRESSURE IN HPA 1021.5 1023.0 1018.6 1014.3 1013.5 1011.0 1011.2 1011.5 1013.4 1022.7 1023.7 1022.4 1017.2 MAX. QNH PRESSURE IN HPA 1038.6 1035.2 1030.9 1024.8 1026.8 1024.4 1018.2 1017.4 1025.3 1029.4 1033.8 1030.7 1038.6 DAY 6 9 16 23 9 22 27 24 22 7 21 6 MIN. QNH PRESSURE IN HPA 1005.5 1012.6 1004.6 1002.5 1007.5 1003.4 1002.1 1002.8 1003.7 1006.1 1006.1 1013.7 1002.1 DAY 8 21 8 11 17 16 24 12 3 1 10 18 MEAN QFF PRESSURE IN HPA 1021.7 1023.2 1018.9 1014.6 1013.8 1011.4 1011.6 1011.9 1013.8 1023.0 1023.9 1022.7 1017.5 MAX. QFF PRESSURE IN HPA 1038.8 1035.5 1031.1 1025.0 1027.0 1024.7 1018.6 1017.8 1025.6 1029.7 1034.1 1030.9 1038.8 DAY 6 9 16 23 9 22 27 24 22 7 21 6 MIN. QFF PRESSURE IN HPA 1005.7 1012.8 1004.9 1002.9 1007.8 1003.8 1002.5 1003.2 1004.1 1006.5 1006.4 1013.9 1002.5 DAY 8 21 8 11 17 16 24 12 3 1 10 18 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1023.8 1025.0 1020.7 1016.4 1015.7 1013.0 1013.2 1013.3 1015.4 1024.9 1025.9 1024.6 1019.3 MAX. QFE PRESSURE IN HPA 1040.8 1037.3 1032.4 1025.9 1029.6 1026.4 1020.2 1019.5 1026.7 1031.7 1035.9 1031.8 1040.8 DAY 6 9 16 23 9 22 27 24 22 6 21 8 MIN. QFE PRESSURE IN HPA 1008.3 1015.1 1007.5 1005.2 1009.1 1004.9 1003.6 1004.3 1004.8 1008.9 1007.0 1015.1 1003.6 DAY 8 27 8 11 17 16 24 12 3 1 10 13 MEAN QNH PRESSURE IN HPA 1020.9 1022.2 1017.9 1013.6 1012.9 1010.2 1010.4 1010.5 1012.5 1022.1 1023.1 1021.8 1016.5 MAX. QNH PRESSURE IN HPA 1037.9 1034.4 1029.6 1023.1 1026.8 1023.6 1017.4 1016.7 1023.9 1028.9 1033.0 1029.0 1037.9 DAY 6 9 16 23 9 22 27 24 22 6 21 8 MIN. QNH PRESSURE IN HPA 1005.5 1012.3 1004.7 1002.4 1006.3 1002.1 1000.8 1001.5 1002.0 1006.1 1004.2 1012.3 1000.8 DAY 8 27 8 11 17 16 24 12 3 1 10 13 MEAN QFF PRESSURE IN HPA 1021.2 1022.4 1018.1 1013.9 1013.2 1010.6 1010.8 1010.9 1012.9 1022.4 1023.3 1022.0 1016.8 MAX. QFF PRESSURE IN HPA 1038.1 1034.7 1029.8 1023.3 1027.0 1023.9 1017.8 1017.1 1024.2 1029.1 1033.3 1029.2 1038.1 DAY 6 9 16 23 9 22 27 24 22 6 21 8 MIN. QFF PRESSURE IN HPA 1005.7 1012.5 1005.0 1002.7 1006.6 1002.5 1001.2 1001.9 1002.4 1006.5 1004.5 1012.5 1001.2 DAY 8 27 8 11 17 16 24 12 3 1 10 13 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 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 1024.6 1025.5 1020.9 1016.5 1015.8 1012.7 1012.9 1012.9 1015.0 1025.1 1026.3 1025.4 1019.5 MAX. QFE PRESSURE IN HPA 1040.6 1038.0 1032.6 1025.5 1028.7 1025.5 1019.3 1018.5 1026.4 1031.8 1036.0 1032.3 1040.6 DAY 6 9 16 23 8 22 27 24 22 7 25 8 MIN. QFE PRESSURE IN HPA 1009.4 1013.5 1006.6 1005.9 1008.9 1004.0 1002.4 1003.5 1004.3 1013.5 1007.5 1016.4 1002.4 DAY 8 6 8 11 13 16 24 12 3 28 10 22 MEAN QNH PRESSURE IN HPA 1021.8 1022.6 1018.1 1013.7 1012.9 1009.9 1010.1 1010.1 1012.2 1022.3 1023.5 1022.6 1016.6 MAX. QNH PRESSURE IN HPA 1037.7 1035.1 1029.8 1022.7 1025.9 1022.7 1016.5 1015.7 1023.6 1029.0 1033.1 1029.5 1037.7 DAY 6 9 16 23 8 22 27 24 22 7 25 8 MIN. QNH PRESSURE IN HPA 1006.6 1010.7 1003.8 1003.1 1006.1 1001.2 999.6 1000.7 1001.5 1010.7 1004.7 1013.6 999.6 DAY 8 6 8 11 13 16 24 12 3 28 10 22 MEAN QFF PRESSURE IN HPA 1022.0 1022.8 1018.3 1014.0 1013.3 1010.3 1010.5 1010.5 1012.5 1022.6 1023.8 1022.8 1016.9 MAX. QFF PRESSURE IN HPA 1037.9 1035.3 1030.0 1022.9 1026.2 1023.0 1016.9 1016.1 1023.9 1029.2 1033.4 1029.7 1037.9 DAY 6 9 16 23 8 22 27 24 22 7 25 8 MIN. QFF PRESSURE IN HPA 1006.8 1010.9 1004.1 1003.4 1006.4 1001.6 1000.0 1001.1 1001.9 1011.0 1005.0 1013.8 1000.0 DAY 8 6 8 11 13 16 24 12 3 28 10 22 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1025.0 1025.8 1021.4 1017.1 1015.7 1013.0 1013.5 1013.8 1015.9 1025.6 1026.5 1025.9 1019.9 MAX. QFE PRESSURE IN HPA 1039.8 1037.6 1032.3 1026.0 1030.1 1025.7 1019.9 1019.7 1027.6 1032.0 1036.4 1032.9 1039.8 DAY 6 9 16 23 8 21 27 28 22 7 21 8 MIN. QFE PRESSURE IN HPA 1008.4 1013.1 1007.8 1009.0 1007.9 1003.9 1003.2 1004.4 1005.1 1014.3 1010.6 1017.3 1003.2 DAY 28 6 8 8 13 16 24 12 3 26 9 13 MEAN QNH PRESSURE IN HPA 1022.2 1022.9 1018.6 1014.3 1012.9 1010.2 1010.7 1011.0 1013.0 1022.8 1023.7 1023.1 1017.1 MAX. QNH PRESSURE IN HPA 1036.9 1034.7 1029.5 1023.2 1027.3 1022.9 1017.1 1016.9 1024.8 1029.2 1033.5 1030.1 1036.9 DAY 6 9 16 23 8 21 27 28 22 7 21 8 MIN. QNH PRESSURE IN HPA 1005.6 1010.3 1005.0 1006.2 1005.1 1001.1 1000.4 1001.6 1002.3 1011.5 1007.8 1014.5 1000.4 DAY 28 6 8 8 13 16 24 12 3 26 9 13 MEAN QFF PRESSURE IN HPA 1022.4 1023.1 1018.9 1014.6 1013.2 1010.6 1011.1 1011.4 1013.4 1023.1 1023.9 1023.3 1017.4 MAX. QFF PRESSURE IN HPA 1037.1 1035.0 1029.7 1023.4 1027.6 1023.2 1017.5 1017.3 1025.1 1029.5 1033.8 1030.3 1037.1 DAY 6 9 16 23 8 21 27 28 22 7 21 8 MIN. QFF PRESSURE IN HPA 1005.9 1010.5 1005.3 1006.5 1005.4 1001.5 1000.8 1002.0 1002.7 1011.8 1008.1 1014.7 1000.8 DAY 28 6 8 8 13 16 24 12 3 26 9 13 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1024.5 1025.5 1021.1 1017.0 1015.3 1012.5 1013.4 1013.8 1015.9 1025.5 1026.3 1025.8 1019.7 MAX. QFE PRESSURE IN HPA 1038.5 1036.3 1032.4 1026.0 1030.1 1026.3 1019.5 1018.7 1027.4 1031.7 1036.8 1032.4 1038.5 DAY 5 9 15 23 8 21 26 24 22 6 20 5 MIN. QFE PRESSURE IN HPA 1008.7 1014.5 1006.3 1007.8 1008.6 1004.5 1004.5 1005.0 1005.1 1013.5 1011.7 1018.1 1004.5 DAY 28 6 7 8 13 16 24 12 13 26 9 22 MEAN QNH PRESSURE IN HPA 1021.7 1022.7 1018.3 1014.2 1012.4 1009.7 1010.6 1011.0 1013.1 1022.7 1023.5 1023.0 1016.9 MAX. QNH PRESSURE IN HPA 1035.6 1033.4 1029.6 1023.2 1027.3 1023.5 1016.7 1015.9 1024.6 1028.9 1033.9 1029.6 1035.6 DAY 5 9 15 23 8 21 26 24 22 6 20 5 MIN. QNH PRESSURE IN HPA 1005.9 1011.7 1003.5 1005.0 1005.8 1001.7 1001.7 1002.2 1002.3 1010.7 1008.9 1015.3 1001.7 DAY 28 6 7 8 13 16 24 12 13 26 9 22 MEAN QFF PRESSURE IN HPA 1021.9 1022.9 1018.5 1014.5 1012.8 1010.1 1011.0 1011.4 1013.5 1023.0 1023.7 1023.2 1017.2 MAX. QFF PRESSURE IN HPA 1035.8 1033.7 1029.8 1023.4 1027.6 1023.8 1017.1 1016.3 1024.9 1029.1 1034.2 1029.8 1035.8 DAY 5 9 15 23 8 21 26 24 22 6 20 5 MIN. QFF PRESSURE IN HPA 1006.2 1011.9 1003.8 1005.3 1006.2 1002.1 1002.1 1002.6 1002.7 1011.0 1009.2 1015.6 1002.1 DAY 28 6 7 8 13 16 24 12 13 26 9 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.4 5.5 8.6 14.6 18.5 20.9 24.0 24.7 21.2 17.8 13.9 7.4 15.4 MINIMUN AIR TEMPERATURE (C) 4.3 2.8 6.2 11.6 15.8 18.3 20.5 22.0 17.0 14.2 10.6 3.9 12.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 1 0 3 12 24 3 0 0 0 43 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 1 4 0 0 0 0 0 0 0 0 0 4 9 TEMPERATURE RECORDS LOWEST(C) -0.4 -1.2 2.0 4.2 11.0 13.0 14.8 19.8 13.4 10.0 5.8 -1.0 -1.2 DAY 22 20 2 6 8 6 1 10 26 14 11 8 MAXIMUM AIR TEMPERATURE (C) 10.9 8.4 11.7 17.8 21.3 23.6 27.3 27.8 25.4 22.1 17.7 11.4 18.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 0 0 0 1 0 0 0 0 3 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 17.6 18.8 20.2 31.0 27.0 27.5 29.4 30.2 27.0 28.0 22.4 16.6 31.0 DAY 30 1 28 24 29 12 24 17 13 19 21 14 DIF. BETWEEN (MAX.-MIN.) (C) 6.6 5.6 5.5 6.2 5.5 5.3 6.8 5.8 8.4 7.9 7.1 7.5 6.5 MEAN DAILY TEMP. (MDT) (C) 7.6 5.6 9.0 14.7 18.5 21.0 23.9 24.9 21.2 18.1 14.1 7.6 15.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 11.3 5.1 25.1 90.7 120.5 17.9 0.0 0.0 0.0 270.7 HEATING DEG. DAYS(BASE 18 0C) 322.5 346.7 280.3 124.7 20.3 4.8 0.0 0.0 0.0 19.1 115.5 320.9 1554.8 DEWPOINT (MEAN C) 4.8 3.2 6.7 10.8 16.2 18.7 20.4 21.5 17.6 14.9 11.9 4.6 12.6 MIXING RATIO (G/KG) 5.36 4.76 6.08 8.24 11.57 13.65 15.16 16.24 12.62 10.59 8.75 5.35 9.86 VAPOUR PRESSURE (HPA) 8.73 7.78 9.88 13.31 18.54 21.75 24.04 25.74 20.29 17.12 14.13 8.72 15.84 SATURATION DEF. (HPA) 1.77 1.40 1.49 4.13 3.03 3.25 6.02 5.57 5.34 3.68 2.07 1.85 3.30 RELATIVE HUMIDITY (MEAN %) 85 86 88 80 87 88 81 83 81 85 88 83 85 RELATIVE HUMIDITY (MAX. %) 95 95 96 92 96 96 93 94 93 95 97 94 95 RELATIVE HUMIDITY (MIN. %) 71 74 77 66 77 78 68 71 67 68 76 68 72 RELATIVE HUMIDITY (MEAN% 03UTC) 90 89 93 89 91 93 88 91 87 91 92 85 90 RELATIVE HUMIDITY (MEAN% 09UTC) 76 78 81 72 82 81 73 74 71 72 80 73 76 RELATIVE HUMIDITY (MEAN% 15UTC) 85 85 89 80 84 84 76 81 81 90 93 89 85 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 98.1 99.2 28.2 36.0 55.2 220.6 4.0 29.0 38.3 462.0 182.3 190.2 1443.1 DAYS WITH PRECIPITATION >=10 2 5 0 1 1 7 0 1 1 7 4 5 34 DAYS WITH PRECIPITATION >= 5 3 6 0 1 4 8 0 2 3 8 8 6 49 DAYS WITH PRECIPITATION >= 1 4 14 9 9 9 14 1 6 7 12 11 9 105 DAYS WITH PRECIPITATION 8 17 19 11 15 17 1 8 8 13 15 17 149 GREATEST DAILY PRECIPITATION 48.2 25.0 4.3 12.1 21.0 55.0 4.0 14.0 11.0 208.0 46.0 57.0 208.0 DAY 21 10 13 18 6 27 27 6 4 20 6 6 DAY WITH THUNDER STORM 0 0 0 1 1 1 0 0 2 0 0 1 6 DAYS WITH SNOW OR SLEET 0 4 0 0 0 0 0 0 0 0 0 2 6 DAYS WITH DUST 0 0 0 3 0 0 0 0 0 0 0 1 4 WIND DIRECTION (PREVAILING) 90 270 270 90 270 270 315 315 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 5.9 7.9 8.4 5.6 8.2 7.3 7.9 7.8 6.3 6.8 7.3 7.3 7.3 PREVAILING WIND PERCENT 7.7 14.3 14.1 6.3 10.9 16.7 13.3 9.7 5.0 4.0 20.0 19.0 11.1 CALMS PERCENT OF WIND 80.2 65.6 69.0 73.8 62.5 67.5 70.6 75.8 83.8 85.5 68.8 68.5 72.7 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 293 307 294 304 330 287 307 306 313 340 280 280 299 VECTOR WIND MAGNITUDE(KNOTS) 0.1 0.8 1.2 0.4 0.8 1.2 1.5 1.0 0.6 0.4 1.5 1.4 0.9 WIND STEADINESES (MEAN %) 7.7 34.8 54.5 22.2 32.0 57.1 78.9 66.7 66.7 40.0 71.4 63.6 50.0 WIND SPEED (MEAN KNOTS) 1.3 2.3 2.2 1.8 2.5 2.1 1.9 1.5 0.9 1.0 2.1 2.2 1.8 FASTEST WIND DIRECTION 270 290 290 210 280 290 300 320 320 310 270 280 210 FASTEST WIND SPEED (KNOTS) 23 23 23 39 21 16 14 19 17 16 19 29 39 DAY 20 1 15 23 10 13 5 11 3 15 15 3 DAYS WITH SKY CLEAR (0-2)/8 8 6 5 11 13 9 14 9 16 15 11 11 128 DAYS WITH P.CLOUDY (3-6)/8 9 8 5 8 4 9 10 9 8 6 4 7 87 DAYS WITH CLOUDY (7-8)/8 14 14 21 11 14 12 7 13 6 10 15 13 150 DAYS WITH VISIBILITY =< 2 KM 2 2 9 3 6 9 0 1 1 4 2 2 41 DURATION OF SUNSHINE HOURS 104.2 88.7 87.1 168.5 177.4 153.5 212.5 134.1 192.5 162.6 120.8 131.5 1733.4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 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 1022.5 1023.9 1021.2 1019.1 1016.1 1013.1 1010.9 1011.9 1020.8 1023.2 1018.6 1024.5 1018.8 MAX. QFE PRESSURE IN HPA 1036.9 1041.4 1033.6 1036.3 1026.1 1018.7 1016.5 1018.4 1026.9 1033.7 1028.1 1038.7 1041.4 DAY-HOUR 9- 6 18- 6 1- 6 5- 6 18- 9 3-18 9-18 7-18 23- 9 24- 6 9-18 21-18 MIN. QFE PRESSURE IN HPA 1006.6 1004.0 1006.0 1003.2 1006.0 1002.7 1003.5 1004.3 1014.8 1011.4 1007.6 1005.2 1002.7 DAY-HOUR 31-21 1- 3 7- 3 30-18 12-21 15-18 20-15 10-15 27-15 14-15 26- 0 3-18 MEAN QNH PRESSURE IN HPA 1019.6 1021.1 1018.4 1016.3 1013.3 1010.3 1008.0 1009.1 1018.0 1020.4 1015.8 1021.7 1016.0 MAX. QNH PRESSURE IN HPA 1034.0 1038.5 1030.8 1033.4 1023.3 1015.9 1013.7 1015.6 1024.1 1030.9 1025.3 1035.8 1038.5 DAY-HOUR 9- 6 18- 6 1- 6 5- 6 18- 9 3-18 9-18 7-18 23- 9 24- 6 9-18 21-18 MIN. QNH PRESSURE IN HPA 1003.8 1001.2 1003.2 1000.4 1003.2 999.9 1000.7 1001.5 1012.0 1008.6 1004.8 1002.4 999.9 DAY-HOUR 31-21 1- 3 7- 3 30-18 12-21 15-18 20-15 10-15 27-15 14-15 26- 0 3-18 MEAN QFF PRESSURE IN HPA 1019.9 1021.3 1018.7 1016.6 1013.6 1010.7 1008.4 1009.5 1018.4 1020.7 1016.1 1021.9 1016.3 MAX. QFF PRESSURE IN HPA 1034.3 1038.7 1031.0 1033.7 1023.6 1016.2 1014.1 1016.0 1024.4 1031.1 1025.5 1036.0 1038.7 DAY-HOUR 9- 6 18- 6 1- 6 5- 6 18- 9 3-18 9-18 7-18 23- 9 24- 6 9-18 21-18 MIN. QFF PRESSURE IN HPA 1004.1 1001.5 1003.5 1000.7 1003.6 1000.3 1001.1 1001.9 1012.4 1008.9 1005.1 1002.7 1000.3 DAY-HOUR 31-21 1- 3 7- 3 30-18 12-21 15-18 30-15 10-15 27-15 14-15 26- 0 3-18 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1022.5 1023.4 1020.7 1018.8 1015.5 1012.8 1010.9 1011.7 1020.2 1022.8 1018.3 1024.3 1018.5 MAX. QFE PRESSURE IN HPA 1033.9 1039.7 1033.3 1034.8 1024.1 1017.6 1015.9 1017.0 1024.9 1032.9 1026.1 1036.5 1039.7 DAY 9 18 1 5 18 4 10 8 23 24 10 22 MIN. QFE PRESSURE IN HPA 1010.7 1006.0 1008.0 1005.2 1007.0 1003.0 1004.0 1006.1 1015.0 1011.6 1007.6 1009.0 1003.0 DAY 30 1 7 24 1 16 20 11 28 19 26 4 MEAN QNH PRESSURE IN HPA 1019.7 1020.5 1017.8 1016.0 1012.6 1010.0 1008.0 1008.9 1017.4 1020.0 1015.5 1021.4 1015.7 MAX. QNH PRESSURE IN HPA 1031.1 1036.8 1030.5 1031.9 1021.3 1014.8 1013.1 1014.2 1022.1 1030.1 1023.3 1033.6 1036.8 DAY 9 18 1 5 18 4 10 8 23 24 10 22 MIN. QNH PRESSURE IN HPA 1007.9 1003.2 1005.2 1002.4 1004.2 1000.2 1001.2 1003.3 1012.2 1008.8 1004.8 1006.2 1000.2 DAY 30 1 7 24 1 16 20 11 28 19 26 4 MEAN QFF PRESSURE IN HPA 1019.9 1020.8 1018.1 1016.3 1013.0 1010.4 1008.4 1009.3 1017.8 1020.3 1015.8 1021.7 1016.0 MAX. QFF PRESSURE IN HPA 1031.3 1037.0 1030.7 1032.2 1021.6 1015.1 1013.5 1014.6 1022.4 1030.3 1023.5 1033.8 1037.0 DAY 9 18 1 5 18 4 10 8 23 24 10 22 MIN. QFF PRESSURE IN HPA 1008.1 1003.5 1005.4 1002.8 1004.5 1000.6 1001.6 1003.7 1012.6 1009.1 1005.1 1006.5 1000.6 DAY 30 1 7 24 1 16 20 11 28 19 26 4 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1022.5 1023.3 1021.4 1019.5 1016.2 1013.5 1011.2 1012.3 1020.9 1023.1 1018.7 1024.6 1018.9 MAX. QFE PRESSURE IN HPA 1035.2 1040.1 1033.0 1035.3 1024.3 1018.4 1016.2 1017.4 1025.9 1032.6 1026.2 1036.3 1040.1 DAY 9 18 1 5 19 4 10 8 23 24 9 7 MIN. QFE PRESSURE IN HPA 1009.6 1004.0 1006.0 1005.9 1008.7 1007.2 1004.4 1007.0 1015.9 1013.0 1008.5 1010.0 1004.0 DAY 20 1 7 24 1 16 20 2 27 19 26 4 MEAN QNH PRESSURE IN HPA 1019.7 1020.5 1018.6 1016.7 1013.4 1010.6 1008.4 1009.5 1018.0 1020.3 1015.8 1021.8 1016.1 MAX. QNH PRESSURE IN HPA 1032.3 1037.2 1030.2 1032.4 1021.5 1015.6 1013.4 1014.6 1023.1 1029.8 1023.4 1033.4 1037.2 DAY 9 18 1 5 19 4 10 8 23 24 9 7 MIN. QNH PRESSURE IN HPA 1006.8 1001.2 1003.2 1003.1 1005.9 1004.4 1001.6 1004.2 1013.1 1010.2 1005.7 1007.2 1001.2 DAY 20 1 7 24 1 16 20 2 27 19 26 4 MEAN QFF PRESSURE IN HPA 1019.9 1020.7 1018.8 1017.0 1013.8 1011.0 1008.8 1009.9 1018.4 1020.6 1016.3 1022.0 1016.4 MAX. QFF PRESSURE IN HPA 1032.6 1037.4 1030.4 1032.7 1021.8 1015.9 1013.8 1015.0 1023.4 1030.0 1023.7 1033.6 1037.4 DAY 9 18 1 5 19 4 10 8 23 24 9 7 MIN. QFF PRESSURE IN HPA 1007.0 1001.5 1003.5 1003.5 1006.2 1004.8 1002.0 1004.6 1013.4 1010.5 1006.0 1007.5 1001.5 DAY 20 1 7 24 1 16 20 2 27 19 26 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 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 1023.6 1024.2 1022.4 1020.1 1016.7 1013.7 1011.4 1012.6 1021.6 1024.0 1019.5 1025.4 1019.6 MAX. QFE PRESSURE IN HPA 1036.9 1041.4 1033.6 1036.3 1025.5 1018.3 1016.2 1017.7 1026.5 1033.7 1027.8 1036.6 1041.4 DAY 9 18 1 5 18 4 13 8 23 24 9 21 MIN. QFE PRESSURE IN HPA 1010.4 1005.1 1007.6 1006.9 1009.7 1007.2 1005.1 1007.2 1016.5 1014.4 1009.6 1011.2 1005.1 DAY 16 1 7 24 2 16 20 2 2 14 26 4 MEAN QNH PRESSURE IN HPA 1020.7 1021.4 1019.6 1017.2 1013.9 1010.8 1008.6 1009.8 1018.8 1021.2 1016.7 1022.5 1016.8 MAX. QNH PRESSURE IN HPA 1034.0 1038.5 1030.8 1033.4 1022.7 1015.5 1013.4 1014.9 1023.7 1030.9 1025.0 1033.7 1038.5 DAY 9 18 1 5 18 4 13 8 23 24 9 21 MIN. QNH PRESSURE IN HPA 1007.6 1002.3 1004.8 1004.1 1006.9 1004.4 1002.3 1004.4 1013.7 1011.6 1006.8 1008.4 1002.3 DAY 16 1 7 24 2 16 20 2 2 14 26 4 MEAN QFF PRESSURE IN HPA 1021.0 1021.6 1019.9 1017.6 1014.2 1011.2 1009.0 1010.2 1019.1 1021.6 1017.0 1022.8 1017.1 MAX. QFF PRESSURE IN HPA 1034.3 1038.7 1031.0 1033.7 1023.0 1015.8 1013.8 1015.3 1024.0 1031.1 1025.2 1034.0 1038.7 DAY 9 18 1 5 18 4 13 8 23 24 9 21 MIN. QFF PRESSURE IN HPA 1007.8 1002.6 1005.1 1004.5 1007.2 1004.8 1002.7 1004.8 1014.1 1011.9 1007.1 1008.7 1002.6 DAY 16 1 7 24 2 16 20 2 2 14 26 4 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1022.8 1023.7 1021.9 1019.7 1016.6 1013.5 1011.0 1012.1 1021.4 1023.5 1018.6 1024.2 1019.1 MAX. QFE PRESSURE IN HPA 1035.9 1040.4 1031.7 1035.4 1026.1 1018.3 1016.3 1017.2 1026.9 1033.2 1027.6 1036.6 1040.4 DAY 9 18 1 5 18 4 13 7 23 24 9 21 MIN. QFE PRESSURE IN HPA 1009.0 1004.1 1007.1 1007.6 1010.1 1006.1 1004.4 1006.6 1016.5 1013.4 1008.8 1010.0 1004.1 DAY 16 1 7 24 2 15 20 1 2 14 26 3 MEAN QNH PRESSURE IN HPA 1019.9 1020.9 1019.1 1016.8 1013.7 1010.6 1008.2 1009.3 1018.6 1020.7 1015.8 1021.4 1016.3 MAX. QNH PRESSURE IN HPA 1033.0 1037.5 1028.9 1032.5 1023.3 1015.5 1013.5 1014.4 1024.1 1030.4 1024.8 1033.7 1037.5 DAY 9 18 1 5 18 4 13 7 23 24 9 21 MIN. QNH PRESSURE IN HPA 1006.2 1001.3 1004.3 1004.8 1007.3 1003.3 1001.6 1003.8 1013.7 1010.6 1006.0 1007.2 1001.3 DAY 16 1 7 24 2 15 20 1 2 14 26 3 MEAN QFF PRESSURE IN HPA 1020.2 1021.1 1019.3 1017.2 1014.1 1011.0 1008.6 1009.7 1018.9 1021.0 1016.1 1021.6 1016.6 MAX. QFF PRESSURE IN HPA 1033.3 1037.7 1029.1 1032.8 1023.6 1015.8 1013.9 1014.8 1024.4 1030.6 1025.0 1034.0 1037.7 DAY 9 18 1 5 18 4 13 7 23 24 9 21 MIN. QFF PRESSURE IN HPA 1006.4 1001.6 1004.6 1005.2 1007.6 1003.7 1002.0 1004.2 1014.1 1010.9 1006.3 1007.5 1001.6 DAY 16 1 7 24 2 15 20 1 2 14 26 3 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1022.0 1023.3 1021.0 1019.0 1016.0 1012.9 1010.3 1011.4 1020.7 1022.9 1018.1 1023.6 1018.4 MAX. QFE PRESSURE IN HPA 1035.2 1039.4 1029.9 1034.1 1026.0 1017.8 1016.3 1017.2 1025.9 1032.7 1027.5 1037.3 1039.4 DAY 9 18 24 5 18 23 13 7 23 24 9 21 MIN. QFE PRESSURE IN HPA 1008.9 1005.2 1009.1 1007.3 1008.3 1004.2 1003.9 1005.4 1015.7 1012.0 1007.8 1006.6 1003.9 DAY 16 1 7 24 12 15 20 10 27 14 26 3 MEAN QNH PRESSURE IN HPA 1019.2 1020.4 1018.1 1016.2 1013.2 1010.1 1007.5 1008.6 1017.9 1020.1 1015.3 1020.8 1015.6 MAX. QNH PRESSURE IN HPA 1032.3 1036.5 1027.1 1031.2 1023.2 1015.0 1013.5 1014.4 1023.1 1029.9 1024.7 1034.4 1036.5 DAY 9 18 24 5 18 23 13 7 23 24 9 21 MIN. QNH PRESSURE IN HPA 1006.1 1002.4 1006.3 1004.5 1005.5 1001.4 1001.1 1002.6 1012.9 1009.2 1005.0 1003.8 1001.1 DAY 16 1 7 24 12 15 20 10 27 14 26 3 MEAN QFF PRESSURE IN HPA 1019.4 1020.7 1018.4 1016.5 1013.6 1010.5 1007.9 1009.0 1018.2 1020.4 1015.6 1021.0 1015.9 MAX. QFF PRESSURE IN HPA 1032.6 1036.7 1027.3 1031.5 1023.5 1015.3 1013.9 1014.8 1023.4 1030.1 1024.9 1034.7 1036.7 DAY 9 18 24 5 18 23 13 7 23 24 9 21 MIN. QFF PRESSURE IN HPA 1006.3 1002.7 1006.5 1004.9 1005.9 1001.8 1001.5 1003.0 1013.3 1009.5 1005.3 1004.1 1001.5 DAY 16 1 7 24 12 15 20 10 27 14 26 3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 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 1022.2 1024.2 1021.0 1018.6 1015.8 1012.6 1010.2 1011.1 1020.5 1023.2 1018.6 1024.5 1018.5 MAX. QFE PRESSURE IN HPA 1035.1 1039.8 1029.7 1034.8 1025.5 1017.8 1015.3 1017.2 1025.4 1033.1 1027.9 1038.1 1039.8 DAY 9 18 24 4 18 23 13 7 23 23 9 21 MIN. QFE PRESSURE IN HPA 1009.5 1012.5 1011.8 1005.7 1006.9 1002.9 1003.5 1004.3 1014.8 1011.4 1008.8 1006.0 1002.9 DAY 16 1 7 30 12 15 20 10 27 14 26 3 MEAN QNH PRESSURE IN HPA 1019.4 1021.3 1018.2 1015.8 1013.0 1009.8 1007.4 1008.3 1017.7 1020.3 1015.8 1021.7 1015.7 MAX. QNH PRESSURE IN HPA 1032.2 1036.9 1026.9 1031.9 1022.7 1015.0 1012.5 1014.4 1022.6 1030.3 1025.1 1035.2 1036.9 DAY 9 18 24 4 18 23 13 7 23 23 9 21 MIN. QNH PRESSURE IN HPA 1006.7 1009.7 1009.0 1002.9 1004.1 1000.1 1000.7 1001.5 1012.0 1008.6 1006.0 1003.2 1000.1 DAY 16 1 7 30 12 15 20 10 27 14 26 3 MEAN QFF PRESSURE IN HPA 1019.6 1021.5 1018.4 1016.1 1013.3 1010.2 1007.8 1008.7 1018.0 1020.6 1016.2 1021.9 1016.0 MAX. QFF PRESSURE IN HPA 1032.5 1037.1 1027.1 1032.2 1023.0 1015.3 1012.9 1014.8 1022.9 1030.6 1025.3 1035.5 1037.1 DAY 9 18 24 4 18 23 13 7 23 23 9 21 MIN. QFF PRESSURE IN HPA 1006.9 1010.0 1009.2 1003.2 1004.5 1000.5 1001.1 1001.9 1012.4 1008.9 1006.3 1003.5 1000.5 DAY 16 1 7 30 12 15 30 10 27 14 26 3 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1022.3 1024.8 1021.1 1019.2 1016.4 1013.2 1011.0 1012.1 1020.9 1023.4 1018.7 1025.0 1019.0 MAX. QFE PRESSURE IN HPA 1034.6 1041.0 1029.9 1035.9 1025.5 1018.7 1016.5 1018.4 1025.3 1033.1 1028.1 1038.7 1041.0 DAY 9 17 22 4 17 3 9 7 23 23 9 21 MIN. QFE PRESSURE IN HPA 1008.9 1013.5 1010.6 1003.2 1006.6 1002.7 1004.0 1004.6 1015.4 1011.5 1008.7 1005.2 1002.7 DAY 31 11 6 30 12 15 19 10 7 14 26 3 MEAN QNH PRESSURE IN HPA 1019.5 1022.0 1018.3 1016.3 1013.6 1010.4 1008.2 1009.3 1018.1 1020.5 1015.9 1022.1 1016.2 MAX. QNH PRESSURE IN HPA 1031.7 1038.1 1027.1 1033.0 1022.7 1015.9 1013.7 1015.6 1022.5 1030.3 1025.3 1035.8 1038.1 DAY 9 17 22 4 17 3 9 7 23 23 9 21 MIN. QNH PRESSURE IN HPA 1006.1 1010.7 1007.8 1000.4 1003.8 999.9 1001.2 1001.8 1012.6 1008.7 1005.9 1002.4 999.9 DAY 31 11 6 30 12 15 19 10 7 14 26 3 MEAN QFF PRESSURE IN HPA 1019.7 1022.2 1018.6 1016.7 1013.9 1010.7 1008.6 1009.7 1018.5 1020.9 1016.2 1022.4 1016.5 MAX. QFF PRESSURE IN HPA 1032.0 1038.3 1027.3 1033.3 1023.0 1016.2 1014.1 1016.0 1022.8 1030.6 1025.5 1036.0 1038.3 DAY 9 17 22 4 18 3 9 7 23 23 9 21 MIN. QFF PRESSURE IN HPA 1006.4 1010.9 1008.0 1000.7 1004.2 1000.3 1001.6 1002.2 1013.0 1009.0 1006.2 1002.7 1000.3 DAY 31 11 6 30 12 15 19 10 7 14 26 3 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1022.0 1024.7 1020.6 1018.3 1015.7 1013.1 1011.0 1012.1 1020.6 1023.0 1018.4 1024.6 1018.7 MAX. QFE PRESSURE IN HPA 1033.1 1040.3 1029.3 1035.4 1025.0 1018.4 1016.4 1018.2 1024.7 1032.8 1027.0 1037.9 1040.3 DAY 9 17 22 4 17 3 9 7 22 23 6 21 MIN. QFE PRESSURE IN HPA 1006.6 1012.4 1007.4 1005.4 1006.0 1002.8 1004.0 1005.6 1015.0 1012.4 1008.5 1006.8 1002.8 DAY 31 4 6 30 12 15 19 10 27 18 25 3 MEAN QNH PRESSURE IN HPA 1019.2 1021.8 1017.8 1015.5 1012.9 1010.3 1008.2 1009.3 1017.8 1020.2 1015.5 1021.8 1015.8 MAX. QNH PRESSURE IN HPA 1030.3 1037.4 1026.5 1032.5 1022.2 1015.6 1013.6 1015.4 1021.9 1030.0 1024.2 1035.0 1037.4 DAY 9 17 22 4 17 3 9 7 22 23 6 21 MIN. QNH PRESSURE IN HPA 1003.8 1009.6 1004.6 1002.6 1003.2 1000.0 1001.2 1002.8 1012.2 1009.6 1005.7 1004.0 1000.0 DAY 31 4 6 30 12 15 19 10 27 18 25 3 MEAN QFF PRESSURE IN HPA 1019.4 1022.0 1018.0 1015.8 1013.3 1010.6 1008.6 1009.7 1018.1 1020.5 1015.8 1022.0 1016.2 MAX. QFF PRESSURE IN HPA 1030.5 1037.6 1026.7 1032.8 1022.5 1015.9 1014.0 1015.8 1022.2 1030.3 1024.4 1035.3 1037.6 DAY 9 17 22 4 17 3 9 7 22 23 6 21 MIN. QFF PRESSURE IN HPA 1004.1 1009.8 1004.9 1002.9 1003.6 1000.4 1001.6 1003.2 1012.6 1009.9 1006.0 1004.3 1000.4 DAY 31 4 6 30 12 15 19 10 27 18 25 3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.2 8.2 10.0 14.7 19.8 23.2 25.1 25.6 22.9 16.5 14.1 8.1 16.4 MINIMUN AIR TEMPERATURE (C) 5.1 5.1 7.3 11.8 16.2 19.3 21.9 22.5 19.0 12.9 9.2 4.2 12.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 5 23 29 8 0 0 0 65 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 1 0 0 0 0 0 0 0 0 0 4 5 TEMPERATURE RECORDS LOWEST(C) 1.6 0.0 3.2 5.8 12.6 14.8 20.0 20.0 12.8 8.0 3.4 -0.6 -0.6 DAY 25 26 1 8 11 25 7 22 23 21 29 20 MAXIMUM AIR TEMPERATURE (C) 11.8 11.2 13.1 18.6 23.5 27.0 28.7 29.2 27.0 20.7 19.4 13.3 20.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 1 6 10 1 0 0 0 18 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.4 17.6 22.0 28.6 27.0 34.8 31.0 31.0 30.0 25.6 26.0 21.7 34.8 DAY 29 11 31 19 23 29 2 4 1 2 8 29 DIF. BETWEEN (MAX.-MIN.) (C) 6.7 6.1 5.8 6.8 7.3 7.7 6.8 6.7 8.0 7.8 10.2 9.1 7.4 MEAN DAILY TEMP. (MDT) (C) 8.4 8.1 10.2 15.2 19.9 23.1 25.3 25.8 23.0 16.8 14.3 8.8 16.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.0 6.9 65.0 133.3 149.5 75.8 0.0 0.0 0.0 431.7 HEATING DEG. DAYS(BASE 18 0C) 296.5 276.2 242.6 94.2 5.4 0.0 0.0 0.0 0.1 54.2 113.9 286.5 1369.5 DEWPOINT (MEAN C) 5.4 5.6 7.3 11.6 15.8 19.5 21.6 22.2 19.4 13.5 9.8 4.3 13.0 MIXING RATIO (G/KG) 5.57 5.65 6.35 8.51 11.31 14.40 16.39 16.92 14.42 9.75 7.78 5.18 10.19 VAPOUR PRESSURE (HPA) 9.09 9.21 10.31 13.71 18.17 22.88 25.91 26.76 22.95 15.77 12.57 8.46 16.31 SATURATION DEF. (HPA) 1.96 1.79 2.15 3.34 5.19 6.07 6.32 6.26 5.70 3.38 4.21 2.71 4.09 RELATIVE HUMIDITY (MEAN %) 84 85 84 83 79 81 82 82 82 84 78 78 82 RELATIVE HUMIDITY (MAX. %) 95 95 94 93 92 94 94 93 94 96 92 92 94 RELATIVE HUMIDITY (MIN. %) 68 72 71 69 66 67 68 70 68 69 59 59 67 RELATIVE HUMIDITY (MEAN% 03UTC) 88 91 87 88 84 86 87 87 89 91 84 83 87 RELATIVE HUMIDITY (MEAN% 09UTC) 74 77 75 76 72 73 72 72 70 72 66 65 72 RELATIVE HUMIDITY (MEAN% 15UTC) 88 86 86 81 75 75 78 80 82 88 84 86 82 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 42.9 35.1 22.1 25.2 5.5 53.7 20.8 45.1 279.5 214.4 71.3 142.5 958.1 DAYS WITH PRECIPITATION >=10 1 1 0 0 0 1 0 1 5 7 3 3 22 DAYS WITH PRECIPITATION >= 5 4 3 1 1 0 3 2 2 6 8 3 7 40 DAYS WITH PRECIPITATION >= 1 7 4 6 6 3 8 5 4 7 12 5 13 80 DAYS WITH PRECIPITATION 10 11 12 12 8 11 7 9 8 15 6 14 123 GREATEST DAILY PRECIPITATION 13.1 19.2 6.4 8.8 2.0 25.0 7.0 34.0 170.0 69.0 36.0 63.0 170.0 DAY 18 5 17 24 7 22 5 14 21 24 26 17 DAY WITH THUNDER STORM 0 0 0 2 2 3 4 1 3 0 3 0 18 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 0 0 0 0 1 0 0 0 1 1 3 WIND DIRECTION (PREVAILING) 270 270 270 270 45 90 315 315 270 270 90 270 270 PREVAILING WIND SPEED(KNOTS) 6.3 6.1 7.8 7.5 4.9 5.6 6.6 6.5 8.5 8.9 7.1 7.1 7.4 PREVAILING WIND PERCENT 12.9 11.2 13.7 14.2 8.9 10.0 11.7 9.7 9.2 10.9 6.3 12.5 10.0 CALMS PERCENT OF WIND 69.4 70.1 61.3 60.8 61.7 67.1 70.2 72.2 70.4 73.8 80.8 78.6 69.7 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 282 312 312 313 355 355 309 314 307 296 205 275 310 VECTOR WIND MAGNITUDE(KNOTS) 0.5 0.5 1.0 1.2 0.7 0.5 1.3 1.2 1.1 0.8 0.1 0.9 0.7 WIND STEADINESES (MEAN %) 29.4 29.4 40.0 48.0 33.3 23.8 72.2 75.0 55.0 40.0 8.3 64.3 36.8 WIND SPEED (MEAN KNOTS) 1.7 1.7 2.5 2.5 2.1 2.1 1.8 1.6 2.0 2.0 1.2 1.4 1.9 FASTEST WIND DIRECTION 270 280 270 280 280 290 280 310 270 280 210 280 290 FASTEST WIND SPEED (KNOTS) 19 29 33 35 29 39 14 16 19 23 19 19 39 DAY 20 8 1 3 9 29 14 8 20 4 10 17 DAYS WITH SKY CLEAR (0-2)/8 9 10 10 4 13 13 12 12 18 13 18 16 148 DAYS WITH P.CLOUDY (3-6)/8 7 2 12 13 12 8 7 10 7 6 10 3 97 DAYS WITH CLOUDY (7-8)/8 15 16 9 13 6 9 12 9 5 12 2 12 120 DAYS WITH VISIBILITY =< 2 KM 6 2 2 4 1 2 1 2 3 4 1 1 29 DURATION OF SUNSHINE HOURS 112.2 111.1 151.0 133.9 233.3 201.4 164.3 178.5 205.7 149.7 195.0 146.4 1982.5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 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 1023.3 1023.3 1020.5 1015.7 1017.7 1011.8 1009.2 1011.0 1014.3 1022.4 1018.6 1024.9 1017.7 MAX. QFE PRESSURE IN HPA 1038.7 1032.7 1033.2 1028.6 1024.9 1019.2 1016.0 1017.8 1026.6 1037.5 1031.5 1036.8 1038.7 DAY-HOUR 6- 6 12- 6 2-18 7- 3 28- 3 1- 3 23- 3 24- 9 26-18 17- 9 15-15 9-18 MIN. QFE PRESSURE IN HPA 1011.1 1006.5 999.8 1002.3 1007.3 993.5 1001.1 1002.9 1007.1 1004.2 1007.9 1012.5 993.5 DAY-HOUR 11-12 8-12 25-15 19-15 2-12 29-15 15-18 22-15 4-15 3-18 11-12 22- 0 MEAN QNH PRESSURE IN HPA 1020.4 1020.5 1017.7 1012.9 1014.9 1009.0 1006.4 1008.2 1011.5 1019.6 1015.8 1022.0 1014.9 MAX. QNH PRESSURE IN HPA 1035.8 1029.9 1030.4 1025.8 1022.1 1016.4 1013.2 1015.0 1023.8 1034.6 1028.7 1033.9 1035.8 DAY-HOUR 6- 6 12- 6 2-18 7- 3 28- 3 1- 3 23- 3 24- 9 26-18 17- 9 15-15 9-18 MIN. QNH PRESSURE IN HPA 1008.3 1003.7 997.0 999.5 1004.5 990.7 998.3 1000.1 1004.3 1001.4 1005.1 1009.7 990.7 DAY-HOUR 11-12 8-12 25-15 19-15 2-12 29-15 15-18 22-15 4-15 3-18 11-12 22- 0 MEAN QFF PRESSURE IN HPA 1020.7 1020.7 1017.9 1013.2 1015.2 1009.4 1006.8 1008.6 1011.9 1019.9 1016.1 1022.3 1015.2 MAX. QFF PRESSURE IN HPA 1036.1 1030.1 1030.6 1026.0 1022.4 1016.7 1013.6 1015.4 1024.1 1034.9 1028.9 1034.2 1036.1 DAY-HOUR 6- 6 12- 6 2-18 7- 3 28- 3 1- 6 23- 6 24- 9 26-18 17- 9 15-15 10- 6 MIN. QFF PRESSURE IN HPA 1008.5 1004.0 997.3 999.9 1004.8 991.2 998.7 1000.5 1004.7 1001.8 1005.5 1009.9 991.2 DAY-HOUR 11-12 8-12 25-15 19-15 2-12 29-15 15-21 22-15 4-15 3-18 11-12 22- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1022.7 1023.0 1020.0 1015.0 1017.3 1011.8 1008.8 1010.9 1014.2 1021.8 1018.7 1024.9 1017.4 MAX. QFE PRESSURE IN HPA 1038.2 1030.5 1032.4 1028.4 1023.8 1018.9 1014.3 1016.9 1026.4 1034.7 1029.6 1036.5 1038.2 DAY 7 17 3 7 28 1 23 20 27 18 16 10 MIN. QFE PRESSURE IN HPA 1011.8 1011.7 1007.7 1005.6 1010.0 997.6 1001.5 1004.7 1007.5 1009.6 1008.6 1012.5 997.6 DAY 17 9 25 19 7 29 16 12 5 4 24 22 MEAN QNH PRESSURE IN HPA 1019.9 1020.2 1017.2 1012.1 1014.5 1008.9 1006.0 1008.1 1011.4 1019.0 1015.9 1022.1 1014.6 MAX. QNH PRESSURE IN HPA 1035.3 1027.7 1029.6 1025.6 1021.0 1016.1 1011.5 1014.1 1023.6 1031.8 1026.8 1033.6 1035.3 DAY 7 17 3 7 28 1 23 20 27 18 16 10 MIN. QNH PRESSURE IN HPA 1009.0 1008.9 1004.9 1002.8 1007.2 994.8 998.7 1001.9 1004.7 1006.8 1005.8 1009.7 994.8 DAY 17 9 25 19 7 29 16 12 5 4 24 22 MEAN QFF PRESSURE IN HPA 1020.1 1020.4 1017.4 1012.5 1014.8 1009.3 1006.4 1008.5 1011.7 1019.3 1016.2 1022.3 1014.9 MAX. QFF PRESSURE IN HPA 1035.6 1027.9 1029.8 1025.8 1021.3 1016.4 1011.9 1014.5 1023.9 1032.1 1027.0 1033.9 1035.6 DAY 7 17 3 7 28 1 23 20 27 18 16 10 MIN. QFF PRESSURE IN HPA 1009.2 1009.1 1005.2 1003.1 1007.5 995.2 999.1 1002.3 1005.1 1007.2 1006.1 1009.9 995.2 DAY 17 9 25 19 7 29 16 12 5 4 24 22 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1023.2 1023.4 1020.5 1015.8 1017.9 1012.3 1009.5 1011.6 1014.6 1022.5 1019.0 1025.1 1018.0 MAX. QFE PRESSURE IN HPA 1037.7 1031.5 1032.2 1028.6 1024.9 1019.2 1016.0 1017.1 1026.4 1035.2 1029.7 1036.4 1037.7 DAY 7 12 3 7 28 1 23 20 27 17 15 10 MIN. QFE PRESSURE IN HPA 1012.2 1012.1 1007.5 1003.6 1008.4 998.9 1002.9 1005.7 1007.4 1011.7 1008.2 1012.7 998.9 DAY 12 8 25 19 7 29 16 12 20 3 24 22 MEAN QNH PRESSURE IN HPA 1020.4 1020.6 1017.7 1013.0 1015.0 1009.5 1006.7 1008.8 1011.8 1019.7 1016.2 1022.3 1015.1 MAX. QNH PRESSURE IN HPA 1034.8 1028.7 1029.4 1025.8 1022.1 1016.4 1013.2 1014.3 1023.6 1032.3 1026.9 1033.5 1034.8 DAY 7 12 3 7 28 1 23 20 27 17 15 10 MIN. QNH PRESSURE IN HPA 1009.4 1009.3 1004.7 1000.8 1005.6 996.1 1000.1 1002.9 1004.6 1008.9 1005.4 1009.9 996.1 DAY 12 8 25 19 7 29 16 12 20 3 24 22 MEAN QFF PRESSURE IN HPA 1020.6 1020.8 1018.0 1013.3 1015.4 1009.9 1007.1 1009.3 1012.2 1020.0 1016.5 1022.5 1015.5 MAX. QFF PRESSURE IN HPA 1035.1 1028.9 1029.6 1026.0 1022.4 1016.7 1013.6 1014.7 1023.9 1032.6 1027.1 1033.8 1035.1 DAY 7 12 3 7 28 1 23 20 27 17 15 10 MIN. QFF PRESSURE IN HPA 1009.7 1009.5 1005.0 1001.1 1006.0 996.5 1000.5 1003.3 1005.0 1009.2 1005.7 1010.1 996.5 DAY 12 8 25 19 7 29 16 12 20 3 24 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 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 1024.3 1024.2 1021.5 1016.7 1018.3 1012.5 1009.9 1012.1 1015.1 1023.4 1019.6 1025.7 1018.6 MAX. QFE PRESSURE IN HPA 1038.7 1032.7 1032.6 1027.9 1024.5 1019.2 1016.0 1017.7 1026.4 1037.1 1031.1 1036.8 1038.7 DAY 6 12 2 7 28 1 23 24 27 17 15 10 MIN. QFE PRESSURE IN HPA 1013.4 1011.1 1007.1 1004.2 1009.2 997.9 1003.4 1005.8 1008.4 1012.2 1008.2 1013.9 997.9 DAY 12 8 25 19 7 29 16 12 5 3 24 22 MEAN QNH PRESSURE IN HPA 1021.5 1021.4 1018.7 1013.9 1015.4 1009.7 1007.1 1009.3 1012.3 1020.6 1016.8 1022.9 1015.8 MAX. QNH PRESSURE IN HPA 1035.8 1029.9 1029.8 1025.1 1021.7 1016.4 1013.2 1014.9 1023.6 1034.2 1028.3 1033.9 1035.8 DAY 6 12 2 7 28 1 23 24 27 17 15 10 MIN. QNH PRESSURE IN HPA 1010.6 1008.3 1004.3 1001.4 1006.4 995.1 1000.6 1003.0 1005.6 1009.4 1005.4 1011.1 995.1 DAY 12 8 25 19 7 29 16 12 5 3 24 22 MEAN QFF PRESSURE IN HPA 1021.7 1021.6 1018.9 1014.2 1015.8 1010.1 1007.5 1009.7 1012.7 1020.9 1017.1 1023.1 1016.1 MAX. QFF PRESSURE IN HPA 1036.1 1030.1 1030.0 1025.3 1022.0 1016.7 1013.6 1015.3 1023.9 1034.5 1028.6 1034.2 1036.1 DAY 6 12 2 7 28 1 23 24 27 17 15 10 MIN. QFF PRESSURE IN HPA 1010.9 1008.6 1004.6 1001.7 1006.8 995.6 1001.0 1003.4 1006.0 1009.8 1005.7 1011.3 995.6 DAY 12 8 25 19 7 29 16 12 5 3 24 22 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1023.5 1023.6 1021.1 1016.4 1018.0 1012.4 1009.6 1011.5 1014.6 1022.8 1018.4 1024.7 1018.0 MAX. QFE PRESSURE IN HPA 1037.3 1032.4 1032.8 1026.2 1024.3 1019.2 1014.9 1017.8 1025.0 1037.5 1031.1 1035.9 1037.5 DAY 6 12 2 13 26 1 23 24 27 17 15 10 MIN. QFE PRESSURE IN HPA 1012.6 1008.5 1004.6 1003.6 1008.0 996.9 1003.6 1006.3 1008.1 1010.4 1008.0 1014.2 996.9 DAY 12 8 25 19 2 29 16 22 19 3 24 22 MEAN QNH PRESSURE IN HPA 1020.6 1020.7 1018.2 1013.6 1015.2 1009.5 1006.8 1008.7 1011.8 1020.0 1015.6 1021.8 1015.2 MAX. QNH PRESSURE IN HPA 1034.4 1029.6 1030.0 1023.4 1021.5 1016.4 1012.1 1015.0 1022.2 1034.6 1028.3 1033.0 1034.6 DAY 6 12 2 13 26 1 23 24 27 17 15 10 MIN. QNH PRESSURE IN HPA 1009.8 1005.7 1001.8 1000.8 1005.2 994.1 1000.8 1003.5 1005.3 1007.6 1005.2 1011.4 994.1 DAY 12 8 25 19 2 29 16 22 19 3 24 22 MEAN QFF PRESSURE IN HPA 1020.9 1021.0 1018.5 1013.9 1015.6 1009.9 1007.2 1009.1 1012.2 1020.3 1015.9 1022.1 1015.6 MAX. QFF PRESSURE IN HPA 1034.7 1029.8 1030.2 1023.7 1021.8 1016.7 1012.5 1015.4 1022.5 1034.9 1028.6 1033.3 1034.9 DAY 6 12 2 13 26 1 23 24 27 17 15 10 MIN. QFF PRESSURE IN HPA 1010.1 1006.0 1002.1 1001.2 1005.5 994.6 1001.2 1003.9 1005.7 1008.0 1005.5 1011.6 994.6 DAY 12 8 25 19 2 29 16 22 19 3 24 22 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1022.6 1022.8 1020.2 1015.7 1017.4 1011.8 1009.0 1010.6 1013.9 1022.2 1017.8 1024.0 1017.3 MAX. QFE PRESSURE IN HPA 1037.1 1031.3 1032.7 1025.3 1023.3 1018.4 1014.3 1017.2 1024.0 1036.9 1031.0 1035.0 1037.1 DAY 6 17 2 6 28 1 7 24 21 17 15 10 MIN. QFE PRESSURE IN HPA 1011.1 1006.5 1002.4 1002.6 1007.3 995.4 1002.8 1004.0 1007.8 1007.8 1007.9 1014.1 995.4 DAY 11 8 25 19 2 29 15 22 19 3 11 22 MEAN QNH PRESSURE IN HPA 1019.8 1019.9 1017.4 1012.9 1014.6 1009.0 1006.2 1007.8 1011.0 1019.4 1015.0 1021.2 1014.5 MAX. QNH PRESSURE IN HPA 1034.2 1028.5 1029.9 1022.5 1020.5 1015.6 1011.5 1014.4 1021.2 1034.0 1028.2 1032.1 1034.2 DAY 6 17 2 6 28 1 7 24 21 17 15 10 MIN. QNH PRESSURE IN HPA 1008.3 1003.7 999.6 999.8 1004.5 992.6 1000.0 1001.2 1005.0 1005.0 1005.1 1011.3 992.6 DAY 11 8 25 19 2 29 15 22 19 3 11 22 MEAN QFF PRESSURE IN HPA 1020.0 1020.2 1017.6 1013.2 1015.0 1009.4 1006.6 1008.2 1011.4 1019.7 1015.3 1021.4 1014.8 MAX. QFF PRESSURE IN HPA 1034.5 1028.7 1030.1 1022.7 1020.8 1015.9 1011.9 1014.8 1021.5 1034.3 1028.5 1032.4 1034.5 DAY 6 17 2 6 28 1 7 24 21 17 15 10 MIN. QFF PRESSURE IN HPA 1008.5 1004.0 999.9 1000.2 1004.8 993.1 1000.4 1001.6 1005.4 1005.4 1005.5 1011.6 993.1 DAY 11 8 25 19 2 29 15 22 19 3 11 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 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 1023.3 1023.2 1020.2 1015.5 1017.4 1011.3 1008.6 1010.1 1013.8 1022.2 1018.2 1024.7 1017.4 MAX. QFE PRESSURE IN HPA 1037.7 1031.7 1032.9 1026.4 1022.5 1017.5 1014.3 1016.9 1025.2 1036.9 1031.5 1035.5 1037.7 DAY 6 17 2 6 28 1 7 24 21 17 15 10 MIN. QFE PRESSURE IN HPA 1011.2 1009.0 999.8 1002.3 1010.5 993.5 1001.4 1002.9 1007.1 1005.7 1008.6 1015.1 993.5 DAY 11 8 25 19 7 29 15 22 4 3 8 26 MEAN QNH PRESSURE IN HPA 1020.4 1020.4 1017.3 1012.7 1014.6 1008.5 1005.8 1007.3 1011.0 1019.4 1015.4 1021.9 1014.6 MAX. QNH PRESSURE IN HPA 1034.8 1028.9 1030.1 1023.6 1019.7 1014.7 1011.5 1014.1 1022.4 1034.0 1028.7 1032.6 1034.8 DAY 6 17 2 6 28 1 7 24 21 17 15 10 MIN. QNH PRESSURE IN HPA 1008.4 1006.2 997.0 999.5 1007.7 990.7 998.6 1000.1 1004.3 1002.9 1005.8 1012.3 990.7 DAY 11 8 25 19 7 29 15 22 4 3 8 26 MEAN QFF PRESSURE IN HPA 1020.7 1020.6 1017.6 1013.0 1015.0 1008.9 1006.2 1007.7 1011.4 1019.7 1015.7 1022.1 1014.9 MAX. QFF PRESSURE IN HPA 1035.1 1029.1 1030.3 1023.8 1020.0 1015.0 1011.9 1014.5 1022.7 1034.3 1028.9 1032.9 1035.1 DAY 6 17 2 6 28 1 7 24 21 17 15 10 MIN. QFF PRESSURE IN HPA 1008.6 1006.4 997.3 999.9 1008.1 991.2 999.0 1000.5 1004.7 1003.3 1006.1 1012.5 991.2 DAY 11 8 25 19 7 29 15 22 4 3 8 26 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1023.5 1023.4 1020.7 1015.6 1017.9 1011.6 1009.2 1010.8 1014.4 1022.4 1018.7 1025.2 1017.8 MAX. QFE PRESSURE IN HPA 1038.6 1031.3 1033.2 1027.5 1023.2 1017.8 1014.9 1017.5 1026.6 1036.8 1031.2 1036.8 1038.6 DAY 6 17 2 6 27 1 23 24 26 17 15 9 MIN. QFE PRESSURE IN HPA 1011.8 1009.9 1005.2 1003.3 1011.3 993.5 1001.1 1003.4 1007.4 1004.2 1008.6 1014.6 993.5 DAY 11 8 25 19 7 29 15 22 4 3 8 21 MEAN QNH PRESSURE IN HPA 1020.7 1020.6 1017.8 1012.7 1015.1 1008.8 1006.4 1007.9 1011.6 1019.6 1015.9 1022.3 1015.0 MAX. QNH PRESSURE IN HPA 1035.7 1028.5 1030.4 1024.7 1020.4 1015.0 1012.1 1014.7 1023.8 1033.9 1028.4 1033.9 1035.7 DAY 6 17 2 6 27 1 23 24 26 17 15 9 MIN. QNH PRESSURE IN HPA 1009.0 1007.1 1002.4 1000.5 1008.5 990.7 998.3 1000.6 1004.6 1001.4 1005.8 1011.8 990.7 DAY 11 8 25 19 7 29 15 22 4 3 8 21 MEAN QFF PRESSURE IN HPA 1020.9 1020.9 1018.1 1013.1 1015.4 1009.2 1006.8 1008.4 1012.0 1019.9 1016.2 1022.6 1015.3 MAX. QFF PRESSURE IN HPA 1036.0 1028.7 1030.6 1024.9 1020.7 1015.4 1012.5 1015.1 1024.1 1034.2 1028.6 1034.2 1036.0 DAY 6 17 2 6 27 1 23 24 26 17 15 9 MIN. QFF PRESSURE IN HPA 1009.2 1007.4 1002.7 1000.9 1008.9 991.2 998.7 1001.0 1005.0 1001.8 1006.1 1012.0 991.2 DAY 25 8 25 19 7 29 15 22 4 3 8 21 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1023.1 1023.1 1020.2 1015.1 1017.5 1011.1 1009.0 1010.8 1014.2 1022.1 1018.7 1024.8 1017.5 MAX. QFE PRESSURE IN HPA 1037.6 1030.1 1032.8 1028.1 1023.5 1016.7 1014.4 1016.9 1026.0 1035.7 1030.3 1036.6 1037.6 DAY 6 17 2 6 27 1 7 19 26 17 15 9 MIN. QFE PRESSURE IN HPA 1012.1 1009.9 1006.0 1003.5 1011.6 995.5 1001.1 1004.7 1007.4 1004.4 1009.2 1012.9 995.5 DAY 11 8 25 19 6 29 15 7 4 3 23 21 MEAN QNH PRESSURE IN HPA 1020.3 1020.2 1017.4 1012.3 1014.7 1008.3 1006.2 1008.0 1011.4 1019.3 1015.8 1022.0 1014.7 MAX. QNH PRESSURE IN HPA 1034.7 1027.3 1030.0 1025.3 1020.7 1013.9 1011.6 1014.1 1023.2 1032.8 1027.5 1033.7 1034.7 DAY 6 17 2 6 27 1 7 19 26 17 15 9 MIN. QNH PRESSURE IN HPA 1009.3 1007.1 1003.2 1000.7 1008.8 992.7 998.3 1001.9 1004.6 1001.6 1006.4 1010.1 992.7 DAY 11 8 25 19 6 29 15 7 4 3 23 21 MEAN QFF PRESSURE IN HPA 1020.5 1020.5 1017.6 1012.6 1015.1 1008.7 1006.7 1008.4 1011.8 1019.6 1016.1 1022.2 1015.0 MAX. QFF PRESSURE IN HPA 1035.0 1027.5 1030.2 1025.6 1021.0 1014.3 1012.0 1014.5 1023.5 1033.1 1027.8 1034.0 1035.0 DAY 6 17 2 6 27 8 7 24 26 17 15 9 MIN. QFF PRESSURE IN HPA 1009.6 1007.4 1003.5 1001.1 1009.1 993.2 998.7 1002.3 1005.0 1002.0 1006.7 1010.3 993.2 DAY 11 8 25 19 6 29 15 7 4 3 23 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.0 7.4 7.7 11.5 19.5 21.8 25.4 25.5 23.1 17.8 12.8 11.2 15.9 MINIMUN AIR TEMPERATURE (C) 4.2 4.7 5.7 9.6 16.5 19.3 21.4 21.9 20.0 13.9 9.4 7.1 12.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 3 20 22 12 0 0 0 58 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 1 0 0 0 0 0 0 0 0 0 0 1 TEMPERATURE RECORDS LOWEST(C) 0.6 -0.4 0.8 3.8 9.8 16.8 17.2 18.4 15.6 9.8 4.0 1.8 -0.4 DAY 21 4 1 6 2 13 15 4 25 20 20 16 MAXIMUM AIR TEMPERATURE (C) 10.1 10.5 9.7 14.0 22.6 24.7 29.2 29.2 26.9 22.1 17.2 16.3 19.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 0 10 14 2 0 0 0 26 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 14.8 21.5 12.8 22.4 26.8 28.4 31.6 31.0 31.0 28.4 20.7 23.5 31.6 DAY 2 9 31 29 16 29 24 5 7 24 6 25 DIF. BETWEEN (MAX.-MIN.) (C) 5.9 5.8 4.0 4.4 6.1 5.4 7.8 7.3 6.9 8.2 7.8 9.2 6.6 MEAN DAILY TEMP. (MDT) (C) 7.1 7.6 7.7 11.8 19.5 22.0 25.3 25.5 23.4 18.0 13.3 11.7 16.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 10.1 34.7 132.3 141.0 79.2 0.0 0.0 0.0 397.4 HEATING DEG. DAYS(BASE 18 0C) 336.7 302.4 319.8 185.8 15.4 0.0 0.0 0.0 0.0 21.2 141.3 195.6 1518.2 DEWPOINT (MEAN C) 4.2 4.6 6.1 10.0 17.5 19.4 22.7 22.2 20.5 14.6 9.8 8.3 13.3 MIXING RATIO (G/KG) 5.15 5.30 5.86 7.64 12.64 14.23 17.50 16.99 15.42 10.44 7.67 6.87 10.48 VAPOUR PRESSURE (HPA) 8.42 8.63 9.53 12.38 20.22 22.69 27.71 26.91 24.47 16.83 12.50 11.16 16.79 SATURATION DEF. (HPA) 1.74 1.94 1.03 1.39 2.86 3.66 5.10 6.06 4.26 3.92 2.67 2.40 3.08 RELATIVE HUMIDITY (MEAN %) 84 84 91 91 89 87 86 83 86 83 84 84 86 RELATIVE HUMIDITY (MAX. %) 94 95 97 98 97 96 97 94 96 95 95 97 96 RELATIVE HUMIDITY (MIN. %) 71 70 82 81 77 76 73 71 73 67 66 67 73 RELATIVE HUMIDITY (MEAN% 03UTC) 86 90 94 95 93 90 90 88 91 91 91 91 91 RELATIVE HUMIDITY (MEAN% 09UTC) 74 74 86 85 84 81 75 73 79 70 68 69 77 RELATIVE HUMIDITY (MEAN% 15UTC) 87 84 88 87 87 83 81 80 86 86 90 90 86 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 95.4 130.9 71.9 74.8 12.0 55.0 4.0 4.4 346.6 309.2 187.2 50.7 1342.1 DAYS WITH PRECIPITATION >=10 4 3 3 3 0 1 0 0 5 7 4 3 33 DAYS WITH PRECIPITATION >= 5 4 7 4 4 0 5 0 0 6 8 6 3 47 DAYS WITH PRECIPITATION >= 1 10 11 11 8 3 9 2 4 13 12 9 3 95 DAYS WITH PRECIPITATION 14 14 20 17 11 14 5 6 14 13 10 8 146 GREATEST DAILY PRECIPITATION 22.0 34.0 24.0 24.0 4.0 12.0 3.0 1.0 189.4 84.0 91.0 22.0 189.4 DAY 10 2 14 10 20 22 26 12 19 31 11 11 DAY WITH THUNDER STORM 0 0 0 2 4 0 0 0 0 3 0 0 9 DAYS WITH SNOW OR SLEET 0 0 1 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 1 1 0 0 0 0 0 0 0 0 0 0 2 WIND DIRECTION (PREVAILING) 270 270 270 270 90 270 315 315 315 90 270 360 270 PREVAILING WIND SPEED(KNOTS) 7.2 7.6 7.9 6.5 5.4 7.3 5.7 7.0 7.0 7.5 5.5 4.6 7.4 PREVAILING WIND PERCENT 14.1 19.8 21.0 13.8 8.1 11.3 11.3 10.1 7.1 4.8 5.0 5.6 9.6 CALMS PERCENT OF WIND 73.0 61.2 63.7 57.5 70.2 71.7 75.8 77.0 76.3 83.1 87.9 86.3 73.7 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 275 293 282 315 326 303 329 302 317 339 299 13 305 VECTOR WIND MAGNITUDE(KNOTS) 0.9 0.9 1.4 1.1 0.5 1.1 0.9 1.1 0.8 0.1 0.2 0.4 0.7 WIND STEADINESES (MEAN %) 52.9 34.6 56.0 44.0 27.8 61.1 69.2 73.3 47.1 8.3 28.6 57.1 41.2 WIND SPEED (MEAN KNOTS) 1.7 2.6 2.5 2.5 1.8 1.8 1.3 1.5 1.7 1.2 0.7 0.7 1.7 FASTEST WIND DIRECTION 270 280 290 290 290 270 300 290 280 270 310 40 270 FASTEST WIND SPEED (KNOTS) 19 25 16 23 23 19 12 29 29 39 19 16 39 DAY 8 1 13 14 29 2 14 27 10 6 11 17 DAYS WITH SKY CLEAR (0-2)/8 5 8 1 5 13 8 15 11 9 9 8 6 98 DAYS WITH P.CLOUDY (3-6)/8 7 3 4 7 8 8 14 9 9 11 11 17 108 DAYS WITH CLOUDY (7-8)/8 19 18 26 18 10 14 2 11 12 11 11 8 160 DAYS WITH VISIBILITY =< 2 KM 3 3 2 4 0 4 0 1 7 4 1 0 29 DURATION OF SUNSHINE HOURS 86.3 88.9 44.1 99.4 211.1 146.9 255.9 162.2 145.1 162.8 147.3 143.9 1693.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 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 1026.6 1022.7 1021.6 1020.5 1016.2 1014.8 1013.1 1012.8 1012.6 1020.1 1027.4 1022.0 1019.2 MAX. QFE PRESSURE IN HPA 1042.2 1033.6 1030.9 1036.0 1024.9 1024.3 1022.3 1025.3 1027.5 1034.4 1039.3 1032.8 1042.2 DAY-HOUR 10- 6 13- 6 16- 9 4- 6 1-12 11- 6 3- 6 29- 9 30-21 1-18 16- 6 1- 6 MIN. QFE PRESSURE IN HPA 1009.5 1002.2 1008.1 1003.0 1005.1 1004.8 1007.3 1003.8 1000.2 1006.1 1018.7 1007.0 1000.2 DAY-HOUR 6-15 9- 9 2-12 13- 0 31-21 1-21 6-15 7-21 8- 0 26-18 1-18 25- 9 MEAN QNH PRESSURE IN HPA 1023.8 1019.9 1018.8 1017.7 1013.4 1012.0 1010.3 1010.0 1009.8 1017.3 1024.6 1019.2 1016.4 MAX. QNH PRESSURE IN HPA 1039.3 1030.8 1028.1 1033.1 1022.1 1021.5 1019.5 1022.5 1024.7 1031.5 1036.4 1030.0 1039.3 DAY-HOUR 10- 6 13- 6 16- 9 4- 6 1-12 11- 6 3- 6 29- 9 30-21 1-18 16- 6 1- 6 MIN. QNH PRESSURE IN HPA 1006.7 999.4 1005.3 1000.2 1002.3 1002.0 1004.5 1001.0 997.4 1003.3 1015.9 1004.2 997.4 DAY-HOUR 6-15 9- 9 2-12 13- 0 31-21 1-21 6-15 7-21 8- 0 26-18 1-18 25- 9 MEAN QFF PRESSURE IN HPA 1024.0 1020.1 1019.0 1018.0 1013.7 1012.4 1010.7 1010.4 1010.2 1017.6 1024.9 1019.5 1016.7 MAX. QFF PRESSURE IN HPA 1039.5 1031.0 1028.3 1033.4 1022.4 1021.8 1019.9 1022.9 1025.0 1031.9 1036.7 1030.2 1039.5 DAY-HOUR 10- 6 13- 6 16- 9 4- 6 1-12 11- 6 3- 6 29- 9 30-21 1-18 16- 6 1- 6 MIN. QFF PRESSURE IN HPA 1007.0 999.7 1005.5 1000.5 1002.7 1002.4 1004.9 1001.4 997.8 1003.7 1016.2 1004.5 997.8 DAY-HOUR 6-15 9- 9 2-12 13- 0 31-21 1-21 6-15 8- 0 8- 0 26-18 1-18 25- 9 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1026.5 1022.3 1021.2 1019.8 1015.7 1014.3 1012.8 1012.4 1012.1 1019.7 1027.1 1021.9 1018.8 MAX. QFE PRESSURE IN HPA 1041.1 1032.6 1029.5 1034.1 1022.9 1022.5 1019.7 1023.2 1020.3 1032.8 1038.4 1031.8 1041.1 DAY 10 13 16 4 2 12 3 29 27 2 16 8 MIN. QFE PRESSURE IN HPA 1014.5 1008.2 1012.1 1003.0 1006.0 1006.0 1007.5 1003.8 1000.2 1006.9 1020.8 1008.4 1000.2 DAY 6 10 3 13 29 1 7 8 8 27 6 25 MEAN QNH PRESSURE IN HPA 1023.7 1019.4 1018.4 1017.0 1012.9 1011.5 1010.0 1009.6 1009.3 1016.8 1024.3 1019.1 1016.0 MAX. QNH PRESSURE IN HPA 1038.2 1029.8 1026.7 1031.2 1020.1 1019.7 1016.9 1020.4 1017.5 1030.0 1035.5 1029.0 1038.2 DAY 10 13 16 4 2 12 3 29 27 2 16 8 MIN. QNH PRESSURE IN HPA 1011.7 1005.4 1009.3 1000.2 1003.2 1003.2 1004.7 1001.0 997.4 1004.1 1018.0 1005.6 997.4 DAY 6 10 3 13 29 1 7 8 8 27 6 25 MEAN QFF PRESSURE IN HPA 1023.9 1019.7 1018.6 1017.2 1013.2 1011.9 1010.4 1010.0 1009.7 1017.2 1024.6 1019.3 1016.3 MAX. QFF PRESSURE IN HPA 1038.4 1030.0 1026.9 1031.5 1020.4 1020.0 1017.3 1020.8 1017.9 1030.3 1035.8 1029.2 1038.4 DAY 10 13 16 4 2 12 3 29 27 2 16 8 MIN. QFF PRESSURE IN HPA 1011.9 1005.7 1009.5 1000.5 1003.6 1003.6 1005.1 1001.4 997.8 1004.5 1018.3 1005.9 997.8 DAY 6 10 3 13 29 1 7 8 8 27 6 25 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1026.6 1022.7 1021.6 1020.6 1016.4 1015.1 1013.5 1013.1 1012.7 1020.1 1027.4 1022.2 1019.3 MAX. QFE PRESSURE IN HPA 1041.3 1033.2 1029.7 1035.0 1023.5 1023.4 1021.0 1024.0 1020.4 1033.0 1039.0 1032.0 1041.3 DAY 10 13 16 4 26 11 3 29 24 2 16 8 MIN. QFE PRESSURE IN HPA 1014.1 1003.7 1012.7 1006.5 1008.5 1006.1 1008.5 1004.2 1001.6 1007.3 1020.8 1008.2 1001.6 DAY 6 9 26 13 29 1 7 8 8 27 6 25 MEAN QNH PRESSURE IN HPA 1023.8 1019.8 1018.8 1017.8 1013.6 1012.3 1010.7 1010.3 1009.9 1017.3 1024.6 1019.3 1016.5 MAX. QNH PRESSURE IN HPA 1038.4 1030.4 1026.9 1032.1 1020.7 1020.6 1018.2 1021.2 1017.6 1030.2 1036.1 1029.2 1038.4 DAY 10 13 16 4 26 11 3 29 24 2 16 8 MIN. QNH PRESSURE IN HPA 1011.3 1000.9 1009.9 1003.7 1005.7 1003.3 1005.7 1001.4 998.8 1004.5 1018.0 1005.4 998.8 DAY 6 9 26 13 29 1 7 8 8 27 6 25 MEAN QFF PRESSURE IN HPA 1024.0 1020.1 1019.0 1018.1 1013.9 1012.7 1011.1 1010.7 1010.3 1017.6 1024.9 1019.5 1016.8 MAX. QFF PRESSURE IN HPA 1038.6 1030.6 1027.1 1032.4 1021.0 1020.9 1018.6 1021.6 1017.9 1030.5 1036.4 1029.4 1038.6 DAY 10 13 16 4 26 11 3 29 24 2 16 8 MIN. QFF PRESSURE IN HPA 1011.5 1001.2 1010.1 1004.0 1006.1 1003.7 1006.1 1001.8 999.2 1004.9 1018.3 1005.7 999.2 DAY 6 9 26 13 29 1 7 8 8 27 6 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 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 1027.6 1023.5 1022.2 1021.5 1017.1 1015.6 1013.9 1013.7 1013.7 1021.1 1028.2 1023.0 1020.1 MAX. QFE PRESSURE IN HPA 1042.2 1033.6 1030.5 1036.0 1024.3 1024.3 1022.3 1025.0 1021.7 1033.4 1039.3 1032.8 1042.2 DAY 10 13 16 4 26 11 3 29 24 2 16 1 MIN. QFE PRESSURE IN HPA 1014.1 1003.7 1012.1 1006.6 1009.8 1008.3 1008.5 1005.0 1002.4 1008.0 1021.1 1007.8 1002.4 DAY 6 9 2 18 29 1 7 8 8 27 6 25 MEAN QNH PRESSURE IN HPA 1024.8 1020.7 1019.4 1018.7 1014.3 1012.8 1011.1 1010.9 1010.9 1018.3 1025.4 1020.2 1017.3 MAX. QNH PRESSURE IN HPA 1039.3 1030.8 1027.7 1033.1 1021.5 1021.5 1019.5 1022.2 1018.9 1030.6 1036.4 1030.0 1039.3 DAY 10 13 16 4 26 11 3 29 24 2 16 1 MIN. QNH PRESSURE IN HPA 1011.3 1000.9 1009.3 1003.8 1007.0 1005.5 1005.7 1002.2 999.6 1005.2 1018.3 1005.0 999.6 DAY 6 9 2 18 29 1 7 8 8 27 6 25 MEAN QFF PRESSURE IN HPA 1025.0 1020.9 1019.6 1019.0 1014.6 1013.2 1011.6 1011.3 1011.3 1018.6 1025.7 1020.4 1017.6 MAX. QFF PRESSURE IN HPA 1039.5 1031.0 1027.9 1033.4 1021.8 1021.8 1019.9 1022.6 1019.2 1030.9 1036.7 1030.2 1039.5 DAY 10 13 16 4 26 11 3 29 24 2 16 1 MIN. QFF PRESSURE IN HPA 1011.6 1001.2 1009.5 1004.1 1007.4 1005.9 1006.1 1002.6 1000.0 1005.6 1018.6 1005.3 1000.0 DAY 6 9 2 18 29 1 7 8 8 27 6 25 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1026.7 1022.8 1021.9 1021.1 1016.9 1015.4 1013.6 1013.3 1013.2 1020.2 1027.4 1022.0 1019.5 MAX. QFE PRESSURE IN HPA 1040.9 1033.1 1030.9 1035.7 1024.7 1024.1 1021.9 1025.3 1021.3 1031.8 1038.8 1031.7 1040.9 DAY 10 13 16 4 1 11 3 29 24 1 16 1 MIN. QFE PRESSURE IN HPA 1012.9 1002.2 1010.5 1004.3 1010.1 1008.1 1008.1 1005.3 1002.5 1008.3 1019.6 1007.0 1002.2 DAY 6 9 2 18 15 29 6 8 8 27 6 25 MEAN QNH PRESSURE IN HPA 1023.8 1020.0 1019.1 1018.3 1014.1 1012.6 1010.8 1010.5 1010.3 1017.4 1024.5 1019.2 1016.7 MAX. QNH PRESSURE IN HPA 1038.0 1030.3 1028.1 1032.8 1021.9 1021.3 1019.1 1022.5 1018.5 1029.0 1035.9 1028.9 1038.0 DAY 10 13 16 4 1 11 3 29 24 1 16 1 MIN. QNH PRESSURE IN HPA 1010.1 999.4 1007.7 1001.5 1007.3 1005.3 1005.3 1002.5 999.7 1005.5 1016.8 1004.2 999.4 DAY 6 9 2 18 15 29 6 8 8 27 6 25 MEAN QFF PRESSURE IN HPA 1024.1 1020.2 1019.3 1018.6 1014.5 1012.9 1011.2 1010.9 1010.7 1017.7 1024.8 1019.5 1017.0 MAX. QFF PRESSURE IN HPA 1038.2 1030.5 1028.3 1033.1 1022.2 1021.6 1019.5 1022.9 1018.8 1029.3 1036.2 1029.1 1038.2 DAY 10 13 16 4 26 11 3 29 24 1 16 1 MIN. QFF PRESSURE IN HPA 1010.3 999.7 1007.9 1001.8 1007.7 1005.7 1005.7 1002.9 1000.1 1005.9 1017.1 1004.5 999.7 DAY 6 9 2 18 15 29 6 8 8 27 6 25 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1026.0 1022.2 1021.2 1020.3 1016.0 1014.6 1012.9 1012.6 1012.2 1019.8 1026.9 1021.4 1018.8 MAX. QFE PRESSURE IN HPA 1040.0 1032.1 1029.9 1035.1 1024.9 1023.9 1021.6 1024.5 1022.3 1032.4 1038.1 1030.7 1040.0 DAY 10 13 16 4 1 11 3 29 30 1 16 1 MIN. QFE PRESSURE IN HPA 1011.1 1002.7 1008.1 1003.1 1008.9 1007.2 1007.6 1005.0 1001.1 1006.8 1018.9 1008.2 1001.1 DAY 6 9 2 18 15 29 6 8 8 26 6 25 MEAN QNH PRESSURE IN HPA 1023.1 1019.4 1018.4 1017.4 1013.2 1011.8 1010.1 1009.8 1009.3 1017.0 1024.1 1018.6 1016.0 MAX. QNH PRESSURE IN HPA 1037.1 1029.3 1027.1 1032.2 1022.1 1021.1 1018.8 1021.7 1019.5 1029.6 1035.2 1027.9 1037.1 DAY 10 13 16 4 1 11 3 29 30 1 16 1 MIN. QNH PRESSURE IN HPA 1008.3 999.9 1005.3 1000.3 1006.1 1004.4 1004.8 1002.2 998.3 1004.0 1016.1 1005.4 998.3 DAY 6 9 2 18 15 29 6 8 8 26 6 25 MEAN QFF PRESSURE IN HPA 1023.4 1019.6 1018.6 1017.7 1013.6 1012.2 1010.5 1010.2 1009.7 1017.3 1024.4 1018.8 1016.3 MAX. QFF PRESSURE IN HPA 1037.3 1029.5 1027.3 1032.5 1022.4 1021.4 1019.2 1022.1 1019.8 1029.9 1035.5 1028.1 1037.3 DAY 10 13 16 4 1 11 3 29 30 1 16 1 MIN. QFF PRESSURE IN HPA 1008.6 1000.2 1005.5 1000.6 1006.5 1004.8 1005.2 1002.6 998.7 1004.4 1016.4 1005.7 998.7 DAY 6 9 2 18 15 29 6 8 8 26 6 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 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 1026.5 1022.5 1021.6 1020.2 1015.7 1014.1 1012.4 1012.1 1011.9 1019.9 1027.4 1021.8 1018.8 MAX. QFE PRESSURE IN HPA 1041.1 1032.5 1030.2 1035.1 1024.9 1023.7 1020.4 1024.3 1023.9 1033.0 1038.8 1031.5 1041.1 DAY 9 26 16 4 1 11 3 29 30 1 16 7 MIN. QFE PRESSURE IN HPA 1009.5 1002.6 1008.5 1003.7 1007.7 1005.9 1007.3 1005.3 1000.5 1007.3 1019.0 1007.8 1000.5 DAY 6 9 2 18 16 29 6 7 8 26 1 24 MEAN QNH PRESSURE IN HPA 1023.7 1019.7 1018.8 1017.4 1012.9 1011.3 1009.6 1009.3 1009.1 1017.1 1024.5 1019.0 1016.0 MAX. QNH PRESSURE IN HPA 1038.2 1029.7 1027.4 1032.2 1022.1 1020.9 1017.6 1021.5 1021.1 1030.2 1035.9 1028.7 1038.2 DAY 9 26 16 4 1 11 3 29 30 1 16 7 MIN. QNH PRESSURE IN HPA 1006.7 999.8 1005.7 1000.9 1004.9 1003.1 1004.5 1002.5 997.7 1004.5 1016.2 1005.0 997.7 DAY 6 9 2 18 16 29 6 7 8 26 1 24 MEAN QFF PRESSURE IN HPA 1023.9 1019.9 1019.0 1017.6 1013.2 1011.7 1010.0 1009.7 1009.5 1017.4 1024.8 1019.4 1016.4 MAX. QFF PRESSURE IN HPA 1038.4 1029.9 1027.6 1032.5 1022.4 1021.2 1018.0 1021.9 1021.4 1030.5 1036.2 1028.9 1038.4 DAY 9 26 16 4 1 11 3 29 30 1 16 7 MIN. QFF PRESSURE IN HPA 1007.0 1000.1 1005.9 1001.2 1005.3 1003.5 1004.9 1002.9 998.1 1004.9 1016.5 1005.3 998.1 DAY 6 9 2 18 16 29 6 7 8 26 1 24 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1026.8 1023.1 1021.8 1020.7 1016.4 1014.8 1013.0 1012.7 1012.6 1020.3 1027.6 1022.1 1019.3 MAX. QFE PRESSURE IN HPA 1041.7 1033.2 1030.9 1035.4 1024.9 1024.2 1020.8 1024.7 1026.5 1034.4 1039.0 1032.2 1041.7 DAY 9 26 16 4 1 11 3 29 30 1 15 7 MIN. QFE PRESSURE IN HPA 1011.2 1003.9 1010.5 1006.4 1007.1 1006.8 1008.0 1005.0 1002.6 1006.1 1018.7 1008.4 1002.6 DAY 6 9 2 18 16 29 24 7 7 26 1 24 MEAN QNH PRESSURE IN HPA 1023.9 1020.3 1019.0 1017.9 1013.5 1011.9 1010.2 1009.9 1009.8 1017.5 1024.8 1019.3 1016.5 MAX. QNH PRESSURE IN HPA 1038.8 1030.4 1028.1 1032.5 1022.1 1021.4 1018.0 1021.9 1023.7 1031.5 1036.1 1029.4 1038.8 DAY 9 26 16 4 1 11 3 29 30 1 15 7 MIN. QNH PRESSURE IN HPA 1008.4 1001.1 1007.7 1003.6 1004.3 1004.0 1005.2 1002.2 999.8 1003.3 1015.9 1005.6 999.8 DAY 6 9 2 18 16 29 24 7 7 26 1 24 MEAN QFF PRESSURE IN HPA 1024.2 1020.5 1019.3 1018.2 1013.9 1012.3 1010.6 1010.3 1010.1 1017.9 1025.1 1019.7 1016.8 MAX. QFF PRESSURE IN HPA 1039.0 1030.5 1028.3 1032.8 1022.4 1021.7 1018.4 1022.3 1024.0 1031.9 1036.4 1029.6 1039.0 DAY 9 26 16 4 1 11 3 29 30 1 15 7 MIN. QFF PRESSURE IN HPA 1008.7 1001.4 1007.9 1003.9 1004.7 1004.4 1005.6 1002.6 1000.2 1003.7 1016.2 1005.9 1000.2 DAY 6 9 2 18 31 29 24 7 7 26 1 24 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1026.5 1022.7 1021.5 1020.2 1015.6 1014.7 1012.8 1012.6 1012.5 1019.9 1027.4 1021.8 1019.0 MAX. QFE PRESSURE IN HPA 1041.4 1032.9 1030.7 1034.9 1023.7 1023.8 1020.4 1023.3 1027.5 1033.5 1038.4 1031.8 1041.4 DAY 9 26 16 4 1 11 3 29 30 1 15 7 MIN. QFE PRESSURE IN HPA 1013.3 1004.0 1011.6 1006.6 1005.1 1004.8 1007.8 1003.8 1000.4 1006.7 1020.0 1008.4 1000.4 DAY 6 9 2 18 31 1 6 7 7 26 1 24 MEAN QNH PRESSURE IN HPA 1023.7 1019.9 1018.7 1017.4 1012.7 1011.9 1009.9 1009.8 1009.7 1017.1 1024.5 1019.0 1016.2 MAX. QNH PRESSURE IN HPA 1038.5 1030.1 1027.9 1032.0 1020.9 1021.0 1017.6 1020.5 1024.7 1030.7 1035.5 1029.0 1038.5 DAY 9 26 16 4 1 11 3 29 30 1 15 7 MIN. QNH PRESSURE IN HPA 1010.5 1001.2 1008.8 1003.8 1002.3 1002.0 1005.0 1001.0 997.6 1003.9 1017.2 1005.6 997.6 DAY 6 9 2 18 31 1 6 7 7 26 1 24 MEAN QFF PRESSURE IN HPA 1023.9 1020.1 1018.9 1017.7 1013.1 1012.3 1010.4 1010.2 1010.1 1017.4 1024.8 1019.3 1016.5 MAX. QFF PRESSURE IN HPA 1038.7 1030.3 1028.1 1032.3 1021.2 1021.3 1018.0 1020.9 1025.0 1031.0 1035.8 1029.2 1038.7 DAY 9 26 16 4 1 11 3 29 30 1 15 7 MIN. QFF PRESSURE IN HPA 1010.8 1001.5 1009.0 1004.1 1002.7 1002.4 1005.4 1001.4 998.0 1004.3 1017.5 1005.9 998.0 DAY 6 9 2 18 31 1 6 7 7 26 1 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.9 6.6 8.1 14.2 19.4 23.9 25.1 26.1 20.8 19.9 12.6 9.6 16.3 MINIMUN AIR TEMPERATURE (C) 5.8 3.3 5.1 10.8 15.7 21.1 22.7 23.3 18.1 16.2 9.2 6.0 13.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 18 28 31 4 2 0 0 83 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 1 3 1 0 0 0 0 0 0 0 0 0 5 TEMPERATURE RECORDS LOWEST(C) 0.0 -1.6 0.0 3.0 10.0 17.0 20.0 21.0 14.0 11.0 6.0 1.0 -1.6 DAY 30 2 9 12 6 5 8 2 16 26 26 29 MAXIMUM AIR TEMPERATURE (C) 12.6 10.2 11.5 18.4 22.9 26.6 28.1 29.2 23.8 24.1 16.9 14.2 19.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 0 6 14 2 1 0 0 23 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.8 14.2 19.5 26.2 29.4 29.8 31.0 31.6 30.5 31.6 22.0 20.4 31.6 DAY 6 18 23 16 26 30 31 13 2 13 5 9 DIF. BETWEEN (MAX.-MIN.) (C) 6.8 6.9 6.4 7.6 7.2 5.5 5.4 5.9 5.7 7.9 7.7 8.2 6.8 MEAN DAILY TEMP. (MDT) (C) 9.2 6.7 8.3 14.6 19.3 23.8 25.4 26.3 21.0 20.2 13.1 10.1 16.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 8.3 88.6 135.6 163.0 21.4 11.9 0.0 0.0 428.8 HEATING DEG. DAYS(BASE 18 0C) 273.6 315.7 300.6 107.9 11.1 0.0 0.0 0.0 1.1 3.6 148.1 245.1 1406.8 DEWPOINT (MEAN C) 6.4 3.6 5.9 10.9 15.9 20.9 22.0 22.4 18.6 16.4 10.0 6.5 13.3 MIXING RATIO (G/KG) 6.06 4.97 5.84 8.29 11.43 15.66 16.80 17.15 13.48 11.79 7.61 6.10 10.43 VAPOUR PRESSURE (HPA) 9.86 8.11 9.47 13.35 18.34 24.82 26.56 27.13 21.57 18.91 12.37 9.92 16.70 SATURATION DEF. (HPA) 1.88 1.80 1.50 3.28 4.50 5.03 5.62 6.91 3.32 4.75 2.53 2.34 3.62 RELATIVE HUMIDITY (MEAN %) 86 83 87 84 82 84 84 81 88 82 85 83 84 RELATIVE HUMIDITY (MAX. %) 97 96 97 97 93 93 94 92 97 92 96 93 95 RELATIVE HUMIDITY (MIN. %) 70 66 74 67 68 74 72 68 78 67 68 66 70 RELATIVE HUMIDITY (MEAN% 03UTC) 88 87 91 91 86 87 89 86 92 85 92 87 88 RELATIVE HUMIDITY (MEAN% 09UTC) 76 73 81 77 76 78 75 71 81 74 71 71 75 RELATIVE HUMIDITY (MEAN% 15UTC) 91 84 87 81 79 80 80 77 87 88 90 89 84 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 118.6 88.3 139.1 13.6 22.3 65.7 110.1 20.6 318.2 137.2 310.7 216.6 1561.0 DAYS WITH PRECIPITATION >=10 5 3 7 0 1 1 4 0 8 2 6 4 41 DAYS WITH PRECIPITATION >= 5 9 7 7 1 1 3 6 2 12 3 6 8 65 DAYS WITH PRECIPITATION >= 1 13 14 9 2 4 6 12 5 14 5 8 10 102 DAYS WITH PRECIPITATION 17 17 12 6 8 9 12 5 17 7 9 11 130 GREATEST DAILY PRECIPITATION 23.3 16.0 38.0 9.0 11.0 41.9 29.0 8.1 87.0 108.0 88.0 91.0 108.0 DAY 16 19 8 11 20 3 5 19 5 31 6 11 DAY WITH THUNDER STORM 0 0 0 0 1 1 2 0 1 0 1 1 7 DAYS WITH SNOW OR SLEET 0 2 1 0 0 0 0 0 0 0 0 0 3 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 270 270 270 90 45 45 270 270 270 180 180 270 270 PREVAILING WIND SPEED(KNOTS) 10.2 8.3 11.4 7.6 7.8 7.1 7.9 6.8 8.0 4.3 4.4 10.3 9.0 PREVAILING WIND PERCENT 19.4 24.1 19.0 16.3 16.5 15.8 17.7 12.5 27.9 16.9 12.9 14.5 15.7 CALMS PERCENT OF WIND 46.0 41.5 36.3 35.0 35.1 32.1 39.9 40.7 28.8 31.0 43.8 36.3 37.2 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 259 281 307 33 15 11 289 303 276 232 217 238 294 VECTOR WIND MAGNITUDE(KNOTS) 1.5 1.9 1.0 1.6 1.5 1.3 2.0 1.1 1.9 0.7 0.9 1.6 0.9 WIND STEADINESES (MEAN %) 36.6 42.2 19.2 32.0 30.0 26.0 48.8 29.7 38.8 14.9 25.0 37.2 20.0 WIND SPEED (MEAN KNOTS) 4.1 4.5 5.2 5.0 5.0 5.0 4.1 3.7 4.9 4.7 3.6 4.3 4.5 FASTEST WIND DIRECTION 60 270 260 300 330 280 280 320 300 270 330 250 270 FASTEST WIND SPEED (KNOTS) 35 35 33 21 33 19 19 17 23 49 19 29 49 DAY 4 5 2 16 26 7 11 15 29 30 5 10 DAYS WITH SKY CLEAR (0-2)/8 9 11 6 7 12 7 4 12 6 10 9 10 103 DAYS WITH P.CLOUDY (3-6)/8 8 7 12 15 12 12 8 9 8 13 12 6 122 DAYS WITH CLOUDY (7-8)/8 14 10 13 8 7 11 19 10 16 8 9 15 140 DAYS WITH VISIBILITY =< 2 KM 1 1 2 5 1 3 3 1 5 0 2 0 24 DURATION OF SUNSHINE HOURS 129.0 143.1 141.1 186.8 239.3 178.2 116.0 180.4 100.7 185.1 143.3 113.4 1856.4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 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 1021.5 1024.3 1019.3 1015.3 1016.8 1011.3 1010.2 1011.9 1017.9 1017.3 1024.1 1022.2 1017.7 MAX. QFE PRESSURE IN HPA 1035.5 1033.7 1038.0 1027.0 1025.5 1018.3 1019.4 1020.0 1028.5 1029.7 1038.0 1034.0 1038.0 DAY-HOUR 23-18 7- 6 11- 6 20- 6 14- 3 3- 9 19- 6 21- 6 14-18 31-18 7- 6 17- 6 MIN. QFE PRESSURE IN HPA 1010.3 1014.4 1004.8 997.0 1003.0 1004.8 1002.9 1003.0 1001.9 1008.0 1009.0 1005.0 997.0 DAY-HOUR 15-15 22-12 23-21 9-15 4- 6 30-15 11- 0 12-21 1-18 2-15 5- 0 8-21 MEAN QNH PRESSURE IN HPA 1018.7 1021.4 1016.5 1012.4 1014.0 1008.5 1007.4 1009.0 1015.1 1014.5 1021.2 1019.3 1014.8 MAX. QNH PRESSURE IN HPA 1032.6 1030.9 1035.1 1024.2 1022.7 1015.5 1016.6 1017.2 1025.7 1026.9 1035.1 1031.1 1035.1 DAY-HOUR 23-18 7- 6 11- 6 20- 6 14- 3 3- 9 19- 6 21- 6 14-18 31-18 7- 6 17- 6 MIN. QNH PRESSURE IN HPA 1007.5 1011.6 1002.0 994.2 1000.2 1002.0 1000.1 1000.2 999.1 1005.2 1006.2 1002.2 994.2 DAY-HOUR 15-15 22-12 23-21 9-15 4- 6 30-15 11- 0 12-21 1-18 2-15 5- 0 8-21 MEAN QFF PRESSURE IN HPA 1018.9 1021.7 1016.7 1012.7 1014.4 1008.9 1007.8 1009.5 1015.4 1014.8 1021.5 1019.6 1015.2 MAX. QFF PRESSURE IN HPA 1032.9 1031.0 1035.4 1024.4 1023.0 1015.8 1017.0 1017.6 1026.0 1027.1 1035.4 1031.4 1035.4 DAY-HOUR 23-18 7- 6 11- 6 20- 6 14- 3 3- 9 19- 6 21- 6 14-18 31-18 7- 6 17- 6 MIN. QFF PRESSURE IN HPA 1007.8 1011.8 1002.3 994.5 1000.6 1002.4 1000.5 1000.6 999.5 1005.6 1006.5 1002.5 994.5 DAY-HOUR 15-15 22-12 23-21 9-15 4- 6 30-15 11- 0 13- 0 1-18 2-15 5- 0 8-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1021.6 1023.9 1018.6 1014.8 1016.4 1010.9 1009.8 1011.7 1017.5 1016.6 1023.9 1022.1 1017.3 MAX. QFE PRESSURE IN HPA 1033.9 1033.0 1036.4 1025.1 1024.9 1017.2 1017.0 1018.9 1026.2 1025.0 1037.0 1031.0 1037.0 DAY 24 21 11 20 16 5 19 21 15 31 8 20 MIN. QFE PRESSURE IN HPA 1011.6 1016.0 1004.8 1005.5 1003.6 1005.0 1002.9 1003.0 1002.4 1010.9 1009.0 1008.0 1002.4 DAY 16 18 24 5 4 13 11 13 2 14 5 9 MEAN QNH PRESSURE IN HPA 1018.7 1021.1 1015.8 1012.0 1013.5 1008.1 1007.0 1008.8 1014.7 1013.8 1021.0 1019.3 1014.5 MAX. QNH PRESSURE IN HPA 1031.1 1030.2 1033.5 1022.3 1022.1 1014.4 1014.2 1016.1 1023.4 1022.2 1034.1 1028.2 1034.1 DAY 24 21 11 20 16 5 19 21 15 31 8 20 MIN. QNH PRESSURE IN HPA 1008.8 1013.2 1002.0 1002.7 1000.8 1002.2 1000.1 1000.2 999.6 1008.1 1006.2 1005.2 999.6 DAY 16 18 24 5 4 13 11 13 2 14 5 9 MEAN QFF PRESSURE IN HPA 1019.0 1021.3 1016.0 1012.3 1013.9 1008.5 1007.5 1009.3 1015.1 1014.1 1021.3 1019.5 1014.8 MAX. QFF PRESSURE IN HPA 1031.3 1030.4 1033.8 1022.6 1022.4 1014.7 1014.6 1016.5 1023.7 1022.5 1034.4 1028.4 1034.4 DAY 24 21 11 20 16 5 19 22 15 31 8 20 MIN. QFF PRESSURE IN HPA 1009.1 1013.4 1002.3 1003.0 1001.2 1002.6 1000.5 1000.6 1000.0 1008.5 1006.5 1005.5 1000.0 DAY 16 18 24 5 4 13 11 13 2 14 5 9 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1021.6 1024.2 1019.4 1015.7 1017.1 1011.6 1010.6 1012.3 1017.9 1017.3 1024.1 1022.3 1017.8 MAX. QFE PRESSURE IN HPA 1033.3 1032.3 1037.0 1026.2 1025.5 1017.1 1019.0 1019.2 1026.0 1027.0 1036.8 1031.5 1037.0 DAY 24 21 11 20 14 8 19 21 15 31 8 20 MIN. QFE PRESSURE IN HPA 1012.8 1016.4 1006.0 1005.0 1004.6 1006.8 1003.9 1004.3 1004.0 1011.8 1010.0 1007.0 1003.9 DAY 6 3 23 5 4 30 11 5 2 14 5 9 MEAN QNH PRESSURE IN HPA 1018.8 1021.4 1016.6 1012.9 1014.2 1008.8 1007.8 1009.5 1015.1 1014.4 1021.3 1019.5 1015.0 MAX. QNH PRESSURE IN HPA 1030.5 1029.5 1034.1 1023.4 1022.7 1014.3 1016.2 1016.4 1023.2 1024.2 1033.9 1028.7 1034.1 DAY 24 21 11 20 14 8 19 21 15 31 8 20 MIN. QNH PRESSURE IN HPA 1010.0 1013.6 1003.2 1002.2 1001.8 1004.0 1001.1 1001.5 1001.2 1009.0 1007.2 1004.2 1001.1 DAY 6 3 23 5 4 30 11 5 2 14 5 9 MEAN QFF PRESSURE IN HPA 1019.0 1021.6 1016.8 1013.1 1014.6 1009.2 1008.2 1009.9 1015.5 1014.8 1021.5 1019.7 1015.3 MAX. QFF PRESSURE IN HPA 1030.7 1029.7 1034.4 1023.6 1023.0 1014.7 1016.6 1016.8 1023.5 1024.5 1034.2 1028.9 1034.4 DAY 24 21 11 20 14 8 19 21 15 31 8 20 MIN. QFF PRESSURE IN HPA 1010.2 1013.8 1003.5 1002.5 1002.2 1004.4 1001.5 1001.9 1001.6 1009.4 1007.5 1004.5 1001.5 DAY 6 3 23 5 4 30 11 5 2 14 5 9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION NOUSHAHR (40734) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 39 N LONGITUDE 51 30 E DATA PROCESSING CENTER ELEVATION -20.9 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 1022.3 1025.4 1020.4 1016.1 1017.5 1012.0 1011.0 1012.8 1018.8 1018.3 1024.9 1023.3 1018.6 MAX. QFE PRESSURE IN HPA 1033.2 1033.7 1038.0 1027.0 1025.5 1018.0 1019.4 1020.0 1026.0 1029.1 1038.0 1034.0 1038.0 DAY 23 7 11 20 14 3 19 21 7 31 7 17 MIN. QFE PRESSURE IN HPA 1013.1 1017.0 1007.4 1004.1 1003.0 1006.5 1005.0 1004.6 1007.0 1011.6 1011.0 1006.8 1003.0 DAY 6 22 23 5 4 12 11 5 2 2 5 9 MEAN QNH PRESSURE IN HPA 1019.5 1022.6 1017.6 1013.3 1014.7 1009.2 1008.1 1010.0 1016.0 1015.5 1022.1 1020.4 1015.7 MAX. QNH PRESSURE IN HPA 1030.4 1030.9 1035.1 1024.2 1022.7 1015.2 1016.6 1017.2 1023.2 1026.3 1035.1 1031.1 1035.1 DAY 23 7 11 20 14 3 19 21 7 31 7 17 MIN. QNH PRESSURE IN HPA 1010.3 1014.2 1004.6 1001.3 1000.2 1003.7 1002.2 1001.8 1004.2 1008.8 1008.2 1004.0 1000.2 DAY 6 22 23 5 4 12 11 5 2 2 5 9 MEAN QFF PRESSURE IN HPA 1019.8 1022.8 1017.8 1013.6 1015.0 1009.6 1008.6 1010.5 1016.4 1015.9 1022.4 1020.7 1016.1 MAX. QFF PRESSURE IN HPA 1030.6 1031.0 1035.4 1024.4 1023.0 1015.5 1017.0 1017.6 1023.5 1026.6 1035.4 1031.4 1035.4 DAY 23 7 11 20 14 3 19 21 7 31 7 17 MIN. QFF PRESSURE IN HPA 1010.6 1014.4 1004.9 1001.6 1000.6 1004.1 1002.6 1002.2 1004.6 1009.2 1008.5 1004.3 1000.6 DAY 6 22 23 5 4 12 11 5 2 2 5 9 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1021.4 1024.6 1019.9 1015.6 1017.4 1011.9 1010.6 1012.3 1018.2 1017.6 1024.1 1021.9 1018.0 MAX. QFE PRESSURE IN HPA 1033.3 1032.8 1037.5 1024.4 1025.4 1018.3 1018.8 1019.4 1026.5 1028.8 1037.6 1033.0 1037.6 DAY 23 7 11 20 15 3 19 21 14 31 7 17 MIN. QFE PRESSURE IN HPA 1012.8 1015.5 1006.0 1002.5 1006.2 1006.4 1005.0 1004.8 1006.0 1011.0 1013.5 1006.4 1002.5 DAY 15 22 23 9 4 30 1 14 1 2 5 9 MEAN QNH PRESSURE IN HPA 1018.6 1021.8 1017.1 1012.8 1014.6 1009.0 1007.8 1009.5 1015.4 1014.8 1021.2 1019.0 1015.1 MAX. QNH PRESSURE IN HPA 1030.5 1030.0 1034.6 1021.6 1022.6 1015.5 1016.0 1016.6 1023.7 1026.0 1034.7 1030.2 1034.7 DAY 23 7 11 20 15 3 19 21 14 31 7 17 MIN. QNH PRESSURE IN HPA 1010.0 1012.7 1003.2 999.7 1003.4 1003.6 1002.2 1002.0 1003.2 1008.2 1010.7 1003.6 999.7 DAY 15 22 23 9 4 30 1 14 1 2 5 9 MEAN QFF PRESSURE IN HPA 1018.8 1022.0 1017.4 1013.1 1015.0 1009.4 1008.2 1009.9 1015.8 1015.1 1021.5 1019.3 1015.5 MAX. QFF PRESSURE IN HPA 1030.7 1030.2 1034.9 1021.9 1022.9 1015.8 1016.4 1017.0 1024.0 1026.3 1035.0 1030.4 1035.0 DAY 23 7 11 20 15 3 19 21 14 31 7 17 MIN. QFF PRESSURE IN HPA 1010.3 1012.9 1003.5 1000.0 1003.7 1004.0 1002.6 1002.4 1003.6 1008.6 1011.0 1003.9 1000.0 DAY 15 22 23 9 4 30 1 14 1 2 5 9 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1020.8 1023.7 1019.0 1015.0 1016.7 1011.2 1009.8 1011.4 1017.4 1017.1 1023.7 1021.5 1017.3 MAX. QFE PRESSURE IN HPA 1033.7 1031.9 1036.2 1024.0 1025.4 1017.6 1018.1 1018.6 1026.9 1028.7 1037.0 1032.0 1037.0 DAY 23 8 11 1 15 3 19 21 14 31 7 17 MIN. QFE PRESSURE IN HPA 1010.5 1014.4 1005.0 999.8 1005.9 1005.5 1004.5 1003.4 1004.0 1009.0 1013.3 1005.8 999.8 DAY 15 22 23 9 4 30 1 14 1 2 4 9 MEAN QNH PRESSURE IN HPA 1017.9 1020.9 1016.2 1012.1 1013.9 1008.4 1007.0 1008.6 1014.5 1014.2 1020.8 1018.6 1014.4 MAX. QNH PRESSURE IN HPA 1030.9 1029.1 1033.3 1021.2 1022.6 1014.8 1015.3 1015.8 1024.1 1025.9 1034.1 1029.2 1034.1 DAY 23 8 11 1 15 3 19 21 14 31 7 17 MIN. QNH PRESSURE IN HPA 1007.7 1011.6 1002.2 997.0 1003.1 1002.7 1001.7 1000.6 1001.2 1006.2 1010.5 1003.0 997.0 DAY 15 22 23 9 4 30 1 14 1 2 4 9 MEAN QFF PRESSURE IN HPA 1018.2 1021.1 1016.5 1012.4 1014.2 1008.8 1007.4 1009.0 1014.9 1014.6 1021.1 1018.9 1014.8 MAX. QFF PRESSURE IN HPA 1031.1 1029.2 1033.6 1021