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