STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 13.1 14.8 19.4 25.2 31.5 35.6 37.2 38.2 36.9 29.5 19.2 12.9 26.1 MINIMUN AIR TEMPERATURE (C) 7.9 8.6 13.2 16.7 22.8 26.8 27.6 27.4 24.5 18.5 11.4 6.9 17.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 5 25 30 31 31 30 15 0 0 167 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 1 0 0 0 0 0 0 0 0 0 0 0 1 TEMPERATURE RECORDS LOWEST(C) -1.0 4.0 8.0 11.0 18.0 22.0 23.0 21.0 21.0 10.0 7.0 1.0 -1.0 DAY 28 9 1 1 7 3 5 7 20 22 24 27 MAXIMUM AIR TEMPERATURE (C) 18.8 21.2 25.9 33.0 39.7 43.8 46.9 45.4 44.0 36.0 28.1 19.8 33.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 2 27 31 30 31 31 30 26 9 0 217 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 23.0 27.0 32.0 40.0 44.0 47.0 53.0 49.0 47.0 43.0 34.0 27.0 53.0 DAY 1 26 23 30 30 5 11 1 4 1 1 2 DIF. BETWEEN (MAX.-MIN.) (C) 10.9 12.6 12.7 16.3 16.9 17.0 19.3 18.0 19.5 17.5 16.7 12.9 15.9 MEAN DAILY TEMP. (MDT) (C) 13.4 14.9 19.5 24.8 31.3 35.3 37.3 36.4 34.2 27.3 19.8 13.4 25.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 7.0 116.5 319.0 429.5 504.0 478.0 397.0 197.5 22.0 0.5 2471.0 HEATING DEG. DAYS(BASE 18 0C) 143.5 89.0 8.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11.0 147.5 399.5 DEWPOINT (MEAN C) 8.0 7.8 10.3 11.0 13.8 14.5 18.1 20.5 16.9 16.7 12.0 7.5 13.1 MIXING RATIO (G/KG) 6.99 6.70 8.03 8.43 10.15 10.99 14.01 16.52 12.48 12.17 9.05 6.58 10.18 VAPOUR PRESSURE (HPA) 11.30 10.82 12.90 13.50 16.15 17.34 21.89 25.75 19.75 19.37 14.54 10.65 16.16 SATURATION DEF. (HPA) 4.26 6.72 10.55 20.42 32.54 43.55 45.22 44.44 46.43 25.00 9.18 4.93 24.44 RELATIVE HUMIDITY (MEAN %) 74 66 59 46 38 32 37 40 34 50 66 72 51 RELATIVE HUMIDITY (MAX. %) 90 88 84 75 60 51 61 66 61 72 86 90 74 RELATIVE HUMIDITY (MIN. %) 52 42 35 24 19 17 18 28 21 35 42 46 32 RELATIVE HUMIDITY (MEAN% 03UTC) 86 84 79 68 55 44 51 64 61 72 79 88 69 RELATIVE HUMIDITY (MEAN% 09UTC) 60 48 41 27 22 20 23 31 22 38 46 57 36 RELATIVE HUMIDITY (MEAN% 15UTC) 68 53 45 31 26 24 27 37 33 53 66 68 44 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 62.0 23.1 3.4 0.0 11.0 0.0 0.0 0.0 0.0 0.0 0.0 36.0 135.5 DAYS WITH PRECIPITATION >=10 2 1 0 0 0 0 0 0 0 0 0 1 4 DAYS WITH PRECIPITATION >= 5 3 2 0 0 1 0 0 0 0 0 0 3 9 DAYS WITH PRECIPITATION >= 1 7 4 3 0 3 0 0 0 0 0 0 5 22 DAYS WITH PRECIPITATION 7 7 10 1 3 0 0 0 0 0 3 8 39 GREATEST DAILY PRECIPITATION 29.0 11.0 1.0 0.0 7.0 0.0 0.0 0.0 0.0 0.0 0.0 18.0 29.0 DAY 7 20 3 ** 4 ** ** ** ** ** ** 9 DAY WITH THUNDER STORM 1 0 1 0 1 0 0 0 0 0 0 2 5 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 3 3 6 9 6 18 12 15 11 0 1 1 85 WIND DIRECTION (PREVAILING) 315 315 315 315 315 315 315 315 315 315 315 315 315 PREVAILING WIND SPEED(KNOTS) 6.8 6.5 7.6 8.1 9.6 13.8 10.6 12.9 9.5 6.0 6.5 5.5 9.0 PREVAILING WIND PERCENT 47.6 38.6 30.4 42.7 37.6 59.6 42.7 40.6 42.7 21.0 30.4 30.2 39.0 CALMS PERCENT OF WIND 15.3 16.1 13.0 4.6 3.3 1.7 2.8 2.8 5.3 10.8 5.4 6.9 7.4 NO. OF WIND OBSERVATION 248 223 247 239 245 240 248 180 150 157 240 248 2665 VECTOR WIND DIRECTION (MEAN) 312 305 266 304 291 308 299 305 307 312 295 297 302 VECTOR WIND MAGNITUDE(KNOTS) 1.9 1.2 1.2 1.0 4.8 9.4 5.7 6.7 5.5 2.0 2.0 2.1 3.6 WIND STEADINESES (MEAN %) 30.2 20.3 19.4 13.5 66.7 83.2 71.2 69.8 73.3 40.8 34.5 42.0 50.7 WIND SPEED (MEAN KNOTS) 6.3 5.9 6.2 7.4 7.2 11.3 8.0 9.6 7.5 4.9 5.8 5.0 7.1 FASTEST WIND DIRECTION 130 310 310 130 290 110 310 330 250 310 130 180 250 FASTEST WIND SPEED (KNOTS) 24 37 30 34 22 30 24 37 46 15 18 18 46 DAY 6 5 13 24 29 10 23 4 10 25 8 19 DAYS WITH SKY CLEAR (0-2)/8 17 14 12 20 17 29 31 31 29 27 18 19 264 DAYS WITH P.CLOUDY (3-6)/8 8 9 16 9 14 1 0 0 1 4 11 11 84 DAYS WITH CLOUDY (7-8)/8 6 5 3 1 0 0 0 0 0 0 1 1 17 DAYS WITH VISIBILITY =< 2 KM 6 2 4 4 4 9 3 8 6 2 1 3 52 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1018.2 1016.6 1013.3 1011.0 1006.8 999.8 997.4 998.7 1005.3 1010.7 1015.4 1018.9 1009.3 MAX. QFE PRESSURE IN HPA 1025.0 1023.4 1020.0 1015.2 1012.9 1005.0 1002.6 1005.2 1010.2 1018.5 1022.8 1027.5 1027.5 DAY-HOUR 10- 6 13- 6 8- 6 4- 6 17- 6 27- 6 7- 6 28- 6 23- 6 28- 6 29- 6 26- 6 MIN. QFE PRESSURE IN HPA 1005.0 999.2 1004.6 1003.6 998.2 993.7 993.3 990.0 1000.5 1002.0 1010.2 1009.2 990.0 DAY-HOUR 7-12 5-12 29-12 24-15 31-21 30-15 1- 0 23- 6 5-15 4-12 26-18 22-12 MEAN QNH PRESSURE IN HPA 1018.7 1017.1 1013.8 1011.5 1007.2 1000.3 997.9 999.2 1005.8 1011.2 1015.9 1019.4 1009.8 MAX. QNH PRESSURE IN HPA 1025.5 1023.9 1020.5 1015.7 1013.4 1005.5 1003.1 1005.7 1010.7 1019.0 1023.3 1028.0 1028.0 DAY-HOUR 10- 6 13- 6 8- 6 4- 6 17- 6 27- 6 7- 6 28- 6 23- 6 28- 6 29- 6 26- 6 MIN. QNH PRESSURE IN HPA 1005.5 999.7 1005.1 1004.1 998.7 994.2 993.8 990.5 1001.0 1002.5 1010.7 1009.7 990.5 DAY-HOUR 7-12 5-12 29-12 24-15 31-21 30-15 1- 0 23- 6 5-15 4-12 26-18 22-12 MEAN QFF PRESSURE IN HPA 1018.9 1017.4 1014.1 1011.8 1007.5 1000.6 998.1 ****** ****** ****** 1016.1 1019.7 ****** MAX. QFF PRESSURE IN HPA 1025.8 1024.2 1020.8 1016.0 1013.6 1005.7 1003.3 ****** ****** ****** 1023.6 1028.3 ****** DAY-HOUR 10- 6 13- 6 8- 6 4- 6 17- 6 27- 6 7- 6 **-** **-** **-** 29- 6 26- 6 MIN. QFF PRESSURE IN HPA 1005.8 1000.0 1005.4 1004.3 998.9 994.4 994.0 ****** ****** ****** 1011.0 1010.0 ****** DAY-HOUR 7-12 5-12 29-12 24-15 31-21 30-21 1- 0 **-** **-** **-** 26-18 22-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1018.1 1016.6 1013.0 1010.6 1006.2 999.4 997.0 ****** ****** ****** 1015.1 1018.8 ****** MAX. QFE PRESSURE IN HPA 1024.0 1022.2 1018.8 1013.4 1010.2 1004.0 1001.0 ****** ****** ****** 1020.9 1025.0 ****** DAY 11 13 14 4 13 7 7 ** ** ** 29 27 MIN. QFE PRESSURE IN HPA 1009.6 1008.5 1007.1 1005.6 1001.2 994.9 993.3 ****** ****** ****** 1011.9 1013.0 ****** DAY 7 5 26 24 31 10 1 ** ** ** 2 14 MEAN QNH PRESSURE IN HPA 1018.6 1017.1 1013.5 1011.1 1006.7 999.9 997.4 ****** ****** ****** 1015.6 1019.3 ****** MAX. QNH PRESSURE IN HPA 1024.5 1022.7 1019.3 1013.9 1010.7 1004.5 1001.5 ****** ****** ****** 1021.4 1025.5 ****** DAY 11 13 14 4 13 7 7 ** ** ** 29 27 MIN. QNH PRESSURE IN HPA 1010.1 1009.0 1007.6 1006.1 1001.7 995.4 993.8 ****** ****** ****** 1012.4 1013.5 ****** DAY 7 5 26 24 31 10 1 ** ** ** 2 14 MEAN QFF PRESSURE IN HPA 1018.8 1017.3 1013.8 1011.3 1006.9 1000.2 997.7 ****** ****** ****** 1015.9 1019.6 ****** MAX. QFF PRESSURE IN HPA 1024.8 1023.0 1019.6 1014.2 1010.9 1004.7 1001.7 ****** ****** ****** 1021.7 1025.8 ****** DAY 11 13 14 4 13 7 7 ** ** ** 29 27 MIN. QFF PRESSURE IN HPA 1010.4 1009.3 1007.9 1006.3 1001.9 995.6 994.0 ****** ****** ****** 1012.7 1013.8 ****** DAY 7 5 26 24 31 10 1 ** ** ** 2 14 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1018.4 1016.9 1013.6 1011.2 1007.1 1000.2 997.7 999.2 1005.5 1010.9 1015.7 1018.9 1009.6 MAX. QFE PRESSURE IN HPA 1023.9 1022.5 1018.9 1014.3 1011.4 1004.8 1002.0 1003.6 1008.8 1017.3 1021.9 1026.0 1026.0 DAY 11 13 8 29 17 7 7 28 23 28 29 26 MIN. QFE PRESSURE IN HPA 1009.6 1005.4 1006.6 1004.9 1002.0 995.8 993.9 994.9 1001.9 1004.8 1012.6 1011.9 993.9 DAY 7 5 29 24 31 10 1 1 6 4 20 15 MEAN QNH PRESSURE IN HPA 1018.9 1017.4 1014.1 1011.7 1007.6 1000.7 998.2 999.7 1006.0 1011.4 1016.2 1019.4 1010.1 MAX. QNH PRESSURE IN HPA 1024.4 1023.0 1019.4 1014.8 1011.9 1005.3 1002.5 1004.1 1009.3 1017.8 1022.4 1026.5 1026.5 DAY 11 13 8 29 17 7 7 28 23 28 29 26 MIN. QNH PRESSURE IN HPA 1010.1 1005.9 1007.1 1005.4 1002.5 996.3 994.4 995.4 1002.4 1005.3 1013.1 1012.4 994.4 DAY 7 5 29 24 31 10 1 1 6 4 20 15 MEAN QFF PRESSURE IN HPA 1019.1 1017.7 1014.3 1012.0 1007.9 1000.9 998.4 999.9 1006.2 1011.7 1016.5 1019.7 1010.4 MAX. QFF PRESSURE IN HPA 1024.7 1023.3 1019.7 1015.1 1012.1 1005.5 1002.7 1004.3 1009.5 1018.1 1022.7 1026.8 1026.8 DAY 11 13 8 29 17 7 7 28 23 28 29 26 MIN. QFF PRESSURE IN HPA 1010.4 1006.2 1007.4 1005.6 1002.7 996.5 994.6 995.6 1002.6 1005.5 1013.4 1012.7 994.6 DAY 7 5 29 24 31 10 1 1 6 4 20 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1019.7 1018.1 1014.7 1012.5 1008.4 1000.8 998.5 1000.0 1006.7 1012.1 1017.1 1020.3 1010.7 MAX. QFE PRESSURE IN HPA 1025.0 1023.4 1020.0 1015.2 1012.9 1005.0 1002.6 1005.2 1010.2 1018.5 1022.8 1027.5 1027.5 DAY 10 13 8 4 17 27 7 28 23 28 29 26 MIN. QFE PRESSURE IN HPA 1009.4 1005.6 1006.5 1006.1 1002.3 996.7 994.7 990.0 1002.6 1005.7 1013.8 1012.4 990.0 DAY 7 5 29 24 31 30 1 23 6 4 3 14 MEAN QNH PRESSURE IN HPA 1020.2 1018.6 1015.2 1013.0 1008.8 1001.3 999.0 1000.4 1007.2 1012.6 1017.6 1020.8 1011.2 MAX. QNH PRESSURE IN HPA 1025.5 1023.9 1020.5 1015.7 1013.4 1005.5 1003.1 1005.7 1010.7 1019.0 1023.3 1028.0 1028.0 DAY 10 13 8 4 17 27 7 28 23 28 29 26 MIN. QNH PRESSURE IN HPA 1009.9 1006.1 1007.0 1006.6 1002.8 997.2 995.2 990.5 1003.1 1006.2 1014.3 1012.9 990.5 DAY 7 5 29 24 31 30 1 23 6 4 3 14 MEAN QFF PRESSURE IN HPA 1020.4 1018.9 1015.5 1013.3 1009.0 1001.6 999.3 ****** ****** ****** 1017.8 1021.1 ****** MAX. QFF PRESSURE IN HPA 1025.8 1024.2 1020.8 1016.0 1013.6 1005.7 1003.3 ****** ****** ****** 1023.6 1028.3 ****** DAY 10 13 8 4 17 27 7 ** ** ** 29 26 MIN. QFF PRESSURE IN HPA 1010.2 1006.4 1007.3 1006.8 1003.0 997.4 995.4 ****** ****** ****** 1014.6 1013.2 ****** DAY 7 5 29 24 31 30 1 ** ** ** 3 14 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1018.5 1017.0 1014.0 1011.8 1007.7 1000.5 998.2 999.7 1005.8 1011.0 1015.6 1018.7 1009.9 MAX. QFE PRESSURE IN HPA 1024.2 1022.5 1019.0 1014.9 1012.4 1004.3 1002.1 1004.8 1009.1 1017.2 1021.3 1025.8 1025.8 DAY 10 13 8 4 17 27 7 31 23 27 29 26 MIN. QFE PRESSURE IN HPA 1006.6 1001.0 1005.7 1006.5 1001.4 996.3 994.9 994.7 1001.8 1004.0 1011.9 1010.2 994.7 DAY 7 5 29 24 31 9 1 1 6 4 3 22 MEAN QNH PRESSURE IN HPA 1019.0 1017.5 1014.5 1012.3 1008.1 1000.9 998.6 1000.2 1006.3 1011.5 1016.1 1019.2 1010.3 MAX. QNH PRESSURE IN HPA 1024.7 1023.0 1019.5 1015.4 1012.9 1004.8 1002.6 1005.3 1009.6 1017.7 1021.8 1026.3 1026.3 DAY 10 13 8 4 17 27 7 31 23 27 29 26 MIN. QNH PRESSURE IN HPA 1007.1 1001.5 1006.2 1007.0 1001.9 996.8 995.4 995.2 1002.3 1004.5 1012.4 1010.7 995.2 DAY 7 5 29 24 31 9 1 1 6 4 3 22 MEAN QFF PRESSURE IN HPA 1019.2 1017.8 1014.8 1012.6 1008.3 1001.2 998.9 ****** ****** ****** 1016.4 1019.5 ****** MAX. QFF PRESSURE IN HPA 1025.0 1023.3 1019.8 1015.7 1013.1 1005.0 1002.8 ****** ****** ****** 1022.1 1026.6 ****** DAY 10 13 8 4 17 27 7 ** ** ** 29 26 MIN. QFF PRESSURE IN HPA 1007.4 1001.8 1006.5 1007.2 1002.1 997.0 995.6 ****** ****** ****** 1012.6 1011.0 ****** DAY 7 5 29 24 31 9 1 ** ** ** 3 22 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1016.9 1015.2 1012.3 1010.0 1006.1 999.3 996.9 998.3 1004.3 1009.5 1014.2 1017.8 1008.4 MAX. QFE PRESSURE IN HPA 1023.1 1020.8 1016.8 1012.5 1011.2 1003.7 1001.0 1003.5 1007.1 1015.8 1019.3 1024.9 1024.9 DAY 10 17 13 11 17 27 10 27 23 27 29 26 MIN. QFE PRESSURE IN HPA 1005.0 999.2 1004.6 1004.1 999.5 994.5 994.5 993.8 1000.9 1002.0 1011.0 1009.2 993.8 DAY 7 5 29 24 31 30 13 1 5 4 3 22 MEAN QNH PRESSURE IN HPA 1017.4 1015.7 1012.8 1010.4 1006.6 999.7 997.4 998.8 1004.8 1010.0 1014.7 1018.3 1008.9 MAX. QNH PRESSURE IN HPA 1023.6 1021.3 1017.3 1013.0 1011.7 1004.2 1001.5 1004.0 1007.6 1016.3 1019.8 1025.4 1025.4 DAY 10 17 13 11 17 27 10 27 23 27 29 26 MIN. QNH PRESSURE IN HPA 1005.5 999.7 1005.1 1004.6 1000.0 995.0 995.0 994.3 1001.4 1002.5 1011.5 1009.7 994.3 DAY 7 5 29 24 31 30 13 1 5 4 3 22 MEAN QFF PRESSURE IN HPA 1017.7 1016.0 1013.0 1010.7 1006.7 1000.0 997.7 ****** ****** ****** 1015.0 1018.6 ****** MAX. QFF PRESSURE IN HPA 1023.9 1021.6 1017.6 1013.3 1011.9 1004.4 1001.7 ****** ****** ****** 1020.1 1025.7 ****** DAY 10 17 13 11 17 27 10 ** ** ** 29 26 MIN. QFF PRESSURE IN HPA 1005.8 1000.0 1005.4 1004.8 1000.2 995.2 995.2 ****** ****** ****** 1011.7 1010.0 ****** DAY 7 5 29 24 31 30 13 ** ** ** 3 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1017.5 1015.7 1012.4 1009.8 1005.7 999.0 996.4 998.0 1004.3 1009.9 1014.7 1018.4 1008.5 MAX. QFE PRESSURE IN HPA 1023.7 1021.9 1018.1 1012.5 1010.4 1003.5 1001.7 1003.2 1007.2 1016.4 1019.7 1025.3 1025.3 DAY 10 17 13 3 17 27 10 27 25 28 29 26 MIN. QFE PRESSURE IN HPA 1007.4 1003.6 1006.1 1003.6 998.7 993.7 993.4 993.5 1000.5 1003.2 1010.6 1010.4 993.4 DAY 7 5 29 24 31 30 1 1 5 4 26 14 MEAN QNH PRESSURE IN HPA 1018.0 1016.2 1012.8 1010.3 1006.2 999.4 996.9 998.5 1004.8 1010.3 1015.2 1018.9 1009.0 MAX. QNH PRESSURE IN HPA 1024.2 1022.4 1018.6 1013.0 1010.9 1004.0 1002.2 1003.7 1007.7 1016.9 1020.2 1025.8 1025.8 DAY 10 17 13 3 17 27 10 27 25 28 29 26 MIN. QNH PRESSURE IN HPA 1007.9 1004.1 1006.6 1004.1 999.2 994.2 993.9 994.0 1001.0 1003.7 1011.1 1010.9 993.9 DAY 7 5 29 24 31 30 1 1 5 4 26 14 MEAN QFF PRESSURE IN HPA 1018.3 1016.5 1013.1 1010.6 1006.5 999.7 997.1 998.7 1005.1 1010.6 1015.5 1019.2 1009.2 MAX. QFF PRESSURE IN HPA 1024.5 1022.7 1018.9 1013.3 1011.1 1004.2 1002.4 1003.9 1007.9 1017.2 1020.5 1026.1 1026.1 DAY 10 17 13 11 17 27 10 31 25 28 29 26 MIN. QFF PRESSURE IN HPA 1008.2 1004.4 1006.9 1004.3 999.4 994.4 994.1 994.2 1001.2 1003.9 1011.4 1011.2 994.1 DAY 7 5 29 24 31 30 1 1 5 4 26 14 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1018.4 1016.8 1013.5 1011.3 1006.7 999.9 997.3 ****** ****** ****** 1015.4 1019.4 ****** MAX. QFE PRESSURE IN HPA 1024.5 1022.9 1020.0 1013.8 1011.3 1004.0 1000.9 ****** ****** ****** 1020.3 1025.8 ****** DAY 10 17 13 3 17 27 10 ** ** ** 10 26 MIN. QFE PRESSURE IN HPA 1008.3 1009.1 1007.6 1006.5 998.9 993.8 994.6 ****** ****** ****** 1010.2 1011.5 ****** DAY 7 5 25 19 31 30 1 ** ** ** 26 14 MEAN QNH PRESSURE IN HPA 1018.9 1017.3 1014.0 1011.8 1007.2 1000.4 997.8 ****** ****** ****** 1015.9 1019.8 ****** MAX. QNH PRESSURE IN HPA 1025.0 1023.4 1020.5 1014.3 1011.8 1004.5 1001.4 ****** ****** ****** 1020.8 1026.3 ****** DAY 10 17 13 3 17 27 10 ** ** ** 10 26 MIN. QNH PRESSURE IN HPA 1008.8 1009.6 1008.1 1007.0 999.4 994.3 995.1 ****** ****** ****** 1010.7 1012.0 ****** DAY 7 5 25 19 31 30 1 ** ** ** 26 14 MEAN QFF PRESSURE IN HPA 1019.2 1017.6 1014.3 1012.0 1007.4 1000.6 998.0 ****** ****** ****** 1016.2 1020.1 ****** MAX. QFF PRESSURE IN HPA 1025.3 1023.7 1020.8 1014.6 1012.0 1004.7 1001.6 ****** ****** ****** 1021.1 1026.6 ****** DAY 10 17 13 5 17 27 10 ** ** ** 28 26 MIN. QFF PRESSURE IN HPA 1009.1 1009.9 1008.4 1007.2 999.6 994.5 995.3 ****** ****** ****** 1011.0 1012.3 ****** DAY 7 5 25 19 31 30 1 ** ** ** 26 14 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1018.3 1016.9 1013.4 1011.1 1006.4 999.7 997.2 ****** ****** ****** 1015.3 1019.0 ****** MAX. QFE PRESSURE IN HPA 1023.8 1022.8 1019.3 1014.3 1010.7 1003.9 1000.7 ****** ****** ****** 1020.8 1025.5 ****** DAY 10 12 13 3 12 6 6 ** ** ** 28 26 MIN. QFE PRESSURE IN HPA 1009.4 1009.5 1007.0 1006.4 998.2 993.7 994.4 ****** ****** ****** 1011.1 1011.1 ****** DAY 7 4 25 23 31 30 13 ** ** ** 26 14 MEAN QNH PRESSURE IN HPA 1018.8 1017.4 1013.8 1011.6 1006.9 1000.2 997.7 ****** ****** ****** 1015.8 1019.5 ****** MAX. QNH PRESSURE IN HPA 1024.3 1023.3 1019.8 1014.8 1011.2 1004.4 1001.2 ****** ****** ****** 1021.3 1026.0 ****** DAY 10 12 13 3 12 6 6 ** ** ** 28 26 MIN. QNH PRESSURE IN HPA 1009.9 1010.0 1007.5 1006.9 998.7 994.2 994.9 ****** ****** ****** 1011.6 1011.6 ****** DAY 7 4 25 23 31 30 13 ** ** ** 26 14 MEAN QFF PRESSURE IN HPA 1019.1 1017.7 1014.1 1011.9 1007.2 1000.5 997.9 ****** ****** ****** 1016.0 1019.8 ****** MAX. QFF PRESSURE IN HPA 1024.6 1023.6 1020.1 1015.1 1011.4 1004.6 1001.4 ****** ****** ****** 1021.6 1026.3 ****** DAY 10 12 13 3 12 6 6 ** ** ** 28 26 MIN. QFF PRESSURE IN HPA 1010.2 1010.3 1007.8 1007.1 998.9 994.4 995.1 ****** ****** ****** 1011.9 1011.9 ****** DAY 7 4 25 23 31 30 13 ** ** ** 26 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 12.6 15.6 19.0 24.8 30.9 34.3 36.2 36.4 33.4 26.3 18.2 15.3 25.2 MINIMUN AIR TEMPERATURE (C) 7.0 9.6 11.6 17.4 23.4 25.6 27.9 27.4 24.0 17.3 11.5 10.4 17.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 3 28 30 31 31 29 5 0 0 157 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) 1.0 3.0 2.0 11.0 19.0 23.0 23.0 22.0 20.0 12.0 7.0 4.0 1.0 DAY 7 15 5 16 1 4 15 12 23 29 19 10 MAXIMUM AIR TEMPERATURE (C) 18.7 21.7 26.3 33.3 39.5 42.9 44.7 46.1 43.8 36.9 26.1 21.2 33.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 7 24 31 30 31 31 30 31 11 0 226 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 24.0 28.0 34.0 40.0 45.0 48.0 49.0 48.0 49.0 41.0 34.0 26.0 49.0 DAY 27 8 31 9 20 5 18 11 2 4 1 11 DIF. BETWEEN (MAX.-MIN.) (C) 11.7 12.1 14.7 15.9 16.1 17.3 16.8 18.7 19.8 19.6 14.6 10.8 15.6 MEAN DAILY TEMP. (MDT) (C) 12.8 15.7 18.9 25.3 31.5 34.2 36.3 36.8 33.9 27.1 18.8 15.8 25.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 20.0 135.0 324.5 397.5 474.0 489.0 387.0 188.0 24.0 0.0 2439.0 HEATING DEG. DAYS(BASE 18 0C) 160.5 76.0 33.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 43.0 76.5 389.5 DEWPOINT (MEAN C) 8.5 8.9 9.2 15.0 14.5 13.6 16.0 17.5 18.2 14.1 10.4 12.1 13.2 MIXING RATIO (G/KG) 7.07 7.28 7.53 11.19 10.74 10.15 11.98 13.23 13.83 10.32 8.05 9.00 10.03 VAPOUR PRESSURE (HPA) 11.43 11.73 12.10 17.81 17.06 16.05 18.81 20.76 21.81 16.50 12.98 14.53 15.96 SATURATION DEF. (HPA) 3.63 6.83 11.14 15.47 29.95 40.59 43.96 43.16 32.77 20.26 9.42 3.48 21.72 RELATIVE HUMIDITY (MEAN %) 78 68 57 58 42 32 33 36 46 50 65 83 54 RELATIVE HUMIDITY (MAX. %) 91 88 83 82 68 55 52 55 71 72 85 95 75 RELATIVE HUMIDITY (MIN. %) 58 43 33 39 21 16 19 20 22 30 40 63 34 RELATIVE HUMIDITY (MEAN% 03UTC) 87 84 78 73 61 48 46 50 66 66 80 91 69 RELATIVE HUMIDITY (MEAN% 09UTC) 66 49 37 45 25 19 22 24 27 33 46 70 39 RELATIVE HUMIDITY (MEAN% 15UTC) 75 58 44 48 29 24 25 30 36 43 60 82 46 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 32.5 29.0 4.0 29.1 0.0 0.0 0.0 0.0 0.0 0.0 18.5 32.8 145.9 DAYS WITH PRECIPITATION >=10 1 2 0 1 0 0 0 0 0 0 0 1 5 DAYS WITH PRECIPITATION >= 5 3 2 0 1 0 0 0 0 0 0 2 2 10 DAYS WITH PRECIPITATION >= 1 6 3 2 4 0 0 0 0 0 0 3 8 26 DAYS WITH PRECIPITATION 9 3 2 8 0 0 0 0 0 0 3 9 34 GREATEST DAILY PRECIPITATION 13.0 16.0 3.0 20.0 0.0 0.0 0.0 0.0 0.0 0.0 8.5 12.0 20.0 DAY 25 10 2 22 ** ** ** ** ** ** 17 26 DAY WITH THUNDER STORM 0 0 1 5 1 0 0 0 0 0 0 4 11 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 4 2 6 8 9 17 21 14 8 6 3 0 98 WIND DIRECTION (PREVAILING) 315 315 315 270 315 270 270 270 315 270 315 315 315 PREVAILING WIND SPEED(KNOTS) 7.1 5.6 7.4 6.1 10.1 8.8 10.2 6.4 8.1 5.6 7.6 5.8 8.5 PREVAILING WIND PERCENT 23.0 33.9 31.0 18.3 31.0 35.0 56.9 38.3 33.9 37.9 35.4 24.4 27.8 CALMS PERCENT OF WIND 13.7 13.4 11.3 8.8 4.8 3.3 4.0 2.0 10.2 9.7 10.8 4.9 8.0 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 236 248 240 246 2914 VECTOR WIND DIRECTION (MEAN) 286 275 282 234 328 314 297 308 290 300 317 268 304 VECTOR WIND MAGNITUDE(KNOTS) 1.0 0.7 2.2 0.6 3.2 9.8 9.3 5.6 2.8 4.3 4.4 0.9 3.6 WIND STEADINESES (MEAN %) 18.2 12.5 32.4 7.9 41.0 91.6 91.2 70.0 47.5 76.8 74.6 14.8 50.7 WIND SPEED (MEAN KNOTS) 5.5 5.6 6.8 7.6 7.8 10.7 10.2 8.0 5.9 5.6 5.9 6.1 7.1 FASTEST WIND DIRECTION 130 180 160 180 110 340 310 310 330 310 340 180 310 FASTEST WIND SPEED (KNOTS) 20 24 30 24 24 30 37 29 24 18 18 18 37 DAY 2 21 1 13 6 20 9 13 19 7 6 22 DAYS WITH SKY CLEAR (0-2)/8 16 20 20 16 25 29 26 29 30 29 22 16 278 DAYS WITH P.CLOUDY (3-6)/8 7 4 8 11 5 1 5 2 0 2 5 9 59 DAYS WITH CLOUDY (7-8)/8 8 4 3 3 1 0 0 0 0 0 3 6 28 DAYS WITH VISIBILITY =< 2 KM 6 1 2 2 2 2 12 3 5 1 3 4 43 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1018.8 1015.9 1013.1 1010.2 1006.2 1001.3 996.9 997.8 1004.5 1011.8 1016.6 1020.2 1009.4 MAX. QFE PRESSURE IN HPA 1028.7 1022.0 1021.7 1017.7 1011.8 1008.2 1001.3 1002.9 1012.4 1017.8 1026.2 1026.5 1028.7 DAY-HOUR 13- 6 14- 6 14- 6 16- 6 12- 6 9- 9 5- 6 24- 6 28- 6 25- 6 19- 6 31- 6 MIN. QFE PRESSURE IN HPA 1008.7 1001.5 1000.6 999.6 1001.1 993.7 990.0 991.9 998.6 1005.4 1010.2 1012.4 990.0 DAY-HOUR 10-12 22-18 1-15 13-12 23-15 22-15 23- 3 7- 0 4-15 6-12 11-12 5- 6 MEAN QNH PRESSURE IN HPA 1019.3 1016.4 1013.6 1010.7 1006.7 1001.8 997.4 998.3 1005.0 1012.3 1017.1 1020.7 1009.9 MAX. QNH PRESSURE IN HPA 1029.2 1022.5 1022.2 1018.2 1012.3 1008.7 1001.8 1003.4 1012.9 1018.3 1026.7 1027.0 1029.2 DAY-HOUR 13- 6 14- 6 14- 6 16- 6 12- 6 9- 9 5- 6 24- 6 28- 6 25- 6 19- 6 31- 6 MIN. QNH PRESSURE IN HPA 1009.2 1002.0 1001.1 1000.1 1001.6 994.2 990.5 992.4 999.1 1005.9 1010.7 1012.9 990.5 DAY-HOUR 10-12 22-18 1-15 13-12 23-15 22-15 23- 3 7- 0 4-15 6-12 11-12 5- 6 MEAN QFF PRESSURE IN HPA 1019.6 1016.7 1014.0 1011.0 1006.9 1002.0 997.6 998.5 1005.1 1012.5 1017.4 1021.0 1010.2 MAX. QFF PRESSURE IN HPA 1029.5 1022.8 1022.5 1018.5 1012.5 1008.9 1002.0 1003.6 1013.1 1018.6 1027.0 1027.3 1029.5 DAY-HOUR 13- 6 14- 6 14- 6 16- 6 12- 6 9- 9 5- 6 24- 6 28- 6 25- 6 19- 6 31- 6 MIN. QFF PRESSURE IN HPA 1009.5 1002.3 1001.4 1000.3 1001.8 994.4 990.7 992.6 999.3 1006.1 1011.0 1013.2 990.7 DAY-HOUR 10-12 22-18 1-15 13-12 23-15 22-15 23- 3 7- 0 4-15 6-12 11-12 5- 6 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1018.9 1015.7 1012.9 1009.6 1005.6 1000.9 996.4 997.2 1004.0 1011.3 1016.4 1020.0 1009.1 MAX. QFE PRESSURE IN HPA 1027.1 1020.2 1020.1 1016.4 1010.1 1008.0 1000.4 1001.6 1010.5 1015.9 1024.4 1024.4 1027.1 DAY 13 14 5 16 8 1 5 24 28 25 19 31 MIN. QFE PRESSURE IN HPA 1010.7 1005.8 1006.0 1002.3 1001.7 994.5 993.2 991.9 1000.1 1005.8 1011.4 1013.9 991.9 DAY 17 23 11 13 4 23 26 7 7 6 12 23 MEAN QNH PRESSURE IN HPA 1019.4 1016.2 1013.4 1010.1 1006.1 1001.4 996.9 997.7 1004.5 1011.8 1016.9 1020.4 1009.6 MAX. QNH PRESSURE IN HPA 1027.6 1020.7 1020.6 1016.9 1010.6 1008.5 1000.9 1002.1 1011.0 1016.4 1024.9 1024.9 1027.6 DAY 13 14 5 16 8 1 5 24 28 25 19 31 MIN. QNH PRESSURE IN HPA 1011.2 1006.3 1006.5 1002.8 1002.2 995.0 993.7 992.4 1000.6 1006.3 1011.9 1014.4 992.4 DAY 17 23 11 13 4 23 26 7 7 6 12 23 MEAN QFF PRESSURE IN HPA 1019.7 1016.5 1013.8 1010.3 1006.4 1001.6 997.1 997.9 1004.7 1012.0 1017.2 1020.8 1009.8 MAX. QFF PRESSURE IN HPA 1027.9 1021.0 1020.9 1017.2 1010.8 1008.7 1001.1 1002.3 1011.2 1016.7 1025.2 1025.2 1027.9 DAY 13 14 5 16 8 1 5 24 28 25 19 31 MIN. QFF PRESSURE IN HPA 1011.5 1006.6 1006.8 1003.0 1002.4 995.2 993.9 992.6 1000.8 1006.5 1012.2 1014.7 992.6 DAY 17 23 11 13 4 23 26 7 7 6 12 23 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1019.1 1016.1 1013.3 1010.5 1006.5 1001.6 997.0 998.0 1004.7 1012.0 1016.9 1020.4 1009.7 MAX. QFE PRESSURE IN HPA 1027.1 1020.7 1020.5 1017.0 1010.6 1007.2 1000.9 1002.2 1010.9 1016.6 1025.3 1024.6 1027.1 DAY 13 14 5 16 12 1 5 24 28 25 19 31 MIN. QFE PRESSURE IN HPA 1011.2 1004.6 1006.0 1002.6 1002.2 995.1 990.0 992.7 1000.2 1006.5 1012.1 1015.0 990.0 DAY 17 22 11 13 4 23 23 7 4 6 12 23 MEAN QNH PRESSURE IN HPA 1019.6 1016.6 1013.8 1010.9 1006.9 1002.1 997.5 998.5 1005.2 1012.5 1017.4 1020.9 1010.2 MAX. QNH PRESSURE IN HPA 1027.6 1021.2 1021.0 1017.5 1011.1 1007.7 1001.4 1002.7 1011.4 1017.1 1025.8 1025.1 1027.6 DAY 13 14 5 16 12 1 5 24 28 25 19 31 MIN. QNH PRESSURE IN HPA 1011.7 1005.1 1006.5 1003.1 1002.7 995.6 990.5 993.2 1000.7 1007.0 1012.6 1015.5 990.5 DAY 17 22 11 13 4 23 23 7 4 6 12 23 MEAN QFF PRESSURE IN HPA 1019.9 1016.9 1014.3 1011.2 1007.1 1002.3 997.7 998.7 1005.5 1012.8 1017.7 1021.2 1010.4 MAX. QFF PRESSURE IN HPA 1027.9 1021.5 1021.3 1017.8 1011.3 1007.9 1001.6 1002.9 1011.6 1017.4 1026.1 1025.4 1027.9 DAY 13 14 5 16 12 1 5 24 28 25 19 31 MIN. QFF PRESSURE IN HPA 1012.0 1005.4 1006.8 1003.4 1002.9 995.8 990.7 993.4 1000.9 1007.2 1012.9 1015.8 990.7 DAY 17 22 11 13 4 23 23 7 4 6 12 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1020.4 1017.3 1014.5 1011.7 1007.5 1002.2 998.0 999.1 1006.0 1013.3 1018.3 1021.4 1010.8 MAX. QFE PRESSURE IN HPA 1028.7 1022.0 1021.7 1017.7 1011.8 1008.0 1001.3 1002.9 1012.4 1017.8 1026.2 1026.5 1028.7 DAY 13 14 14 16 12 1 5 24 28 25 19 31 MIN. QFE PRESSURE IN HPA 1012.6 1006.2 1007.3 1002.8 1003.5 995.3 994.8 994.1 1001.6 1007.4 1013.5 1012.4 994.1 DAY 10 22 1 13 23 22 26 7 4 6 11 5 MEAN QNH PRESSURE IN HPA 1020.9 1017.8 1014.9 1012.2 1008.0 1002.7 998.5 999.5 1006.5 1013.8 1018.8 1021.9 1011.3 MAX. QNH PRESSURE IN HPA 1029.2 1022.5 1022.2 1018.2 1012.3 1008.5 1001.8 1003.4 1012.9 1018.3 1026.7 1027.0 1029.2 DAY 13 14 14 16 12 1 5 24 28 25 19 31 MIN. QNH PRESSURE IN HPA 1013.1 1006.7 1007.8 1003.3 1004.0 995.8 995.3 994.6 1002.1 1007.9 1014.0 1012.9 994.6 DAY 10 22 1 13 23 22 26 7 4 6 11 5 MEAN QFF PRESSURE IN HPA 1021.2 1018.1 1015.5 1012.4 1008.3 1003.0 998.8 999.8 1006.6 1014.1 1019.1 1022.1 1011.6 MAX. QFF PRESSURE IN HPA 1029.5 1022.8 1022.5 1018.5 1012.5 1008.7 1002.0 1003.6 1013.1 1018.6 1027.0 1027.3 1029.5 DAY 13 14 14 16 12 1 5 24 28 25 19 31 MIN. QFF PRESSURE IN HPA 1013.4 1007.0 1008.4 1003.5 1004.2 996.0 995.5 994.8 1002.3 1008.1 1014.3 1013.2 994.8 DAY 10 22 24 13 23 22 26 7 4 6 11 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1019.0 1016.5 1013.7 1010.9 1006.9 1001.9 997.7 998.5 1005.1 1012.0 1016.7 1020.5 1010.0 MAX. QFE PRESSURE IN HPA 1027.2 1021.3 1021.6 1017.4 1011.2 1008.2 1001.0 1002.6 1010.7 1016.5 1025.3 1025.1 1027.2 DAY 13 14 5 15 12 9 5 24 28 31 19 31 MIN. QFE PRESSURE IN HPA 1010.6 1004.8 1004.7 1000.5 1002.6 995.3 994.2 993.9 1000.8 1006.8 1011.8 1015.0 993.9 DAY 10 22 1 13 23 22 26 7 4 6 11 22 MEAN QNH PRESSURE IN HPA 1019.5 1017.0 1014.2 1011.4 1007.4 1002.4 998.1 999.0 1005.6 1012.5 1017.2 1020.9 1010.4 MAX. QNH PRESSURE IN HPA 1027.7 1021.8 1022.1 1017.9 1011.7 1008.7 1001.5 1003.1 1011.2 1017.0 1025.8 1025.6 1027.7 DAY 13 14 5 15 12 9 5 24 28 31 19 31 MIN. QNH PRESSURE IN HPA 1011.1 1005.3 1005.2 1001.0 1003.1 995.8 994.7 994.4 1001.3 1007.3 1012.3 1015.5 994.4 DAY 10 22 1 13 23 22 26 7 4 6 11 22 MEAN QFF PRESSURE IN HPA 1019.8 1017.3 1014.8 1011.7 1007.7 1002.7 998.4 999.2 1005.8 1012.8 1017.5 1021.2 1010.7 MAX. QFF PRESSURE IN HPA 1028.0 1022.1 1022.4 1018.2 1011.9 1008.9 1001.7 1003.3 1011.4 1017.3 1026.1 1025.9 1028.0 DAY 13 14 5 15 12 9 5 24 28 31 19 31 MIN. QFF PRESSURE IN HPA 1011.4 1005.6 1007.7 1001.2 1003.3 996.0 994.9 994.6 1001.5 1007.5 1012.6 1015.8 994.6 DAY 10 22 24 13 23 22 26 7 4 6 11 22 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1017.5 1014.7 1012.0 1009.2 1005.5 1000.8 996.4 997.1 1003.5 1010.8 1015.6 1019.4 1008.6 MAX. QFE PRESSURE IN HPA 1025.5 1019.6 1019.7 1016.3 1009.6 1007.0 999.5 1000.9 1009.4 1015.6 1024.0 1024.5 1025.5 DAY 13 14 5 15 21 9 6 24 27 31 19 31 MIN. QFE PRESSURE IN HPA 1008.7 1002.7 1001.8 999.6 1001.4 994.5 993.3 992.7 998.8 1005.4 1010.2 1015.0 992.7 DAY 10 22 1 13 23 22 27 6 4 6 11 27 MEAN QNH PRESSURE IN HPA 1018.0 1015.2 1012.5 1009.7 1005.9 1001.3 996.9 997.6 1004.0 1011.3 1016.1 1019.9 1009.0 MAX. QNH PRESSURE IN HPA 1026.0 1020.1 1020.2 1016.8 1010.1 1007.5 1000.0 1001.4 1009.9 1016.1 1024.5 1025.0 1026.0 DAY 13 14 5 15 21 9 6 24 27 31 19 31 MIN. QNH PRESSURE IN HPA 1009.2 1003.2 1002.3 1000.1 1001.9 995.0 993.8 993.2 999.3 1005.9 1010.7 1015.5 993.2 DAY 10 22 1 13 23 22 27 6 4 6 11 27 MEAN QFF PRESSURE IN HPA 1018.2 1015.5 1012.8 1010.0 1006.2 1001.6 997.1 997.8 1004.2 1011.6 1016.4 1020.1 1009.3 MAX. QFF PRESSURE IN HPA 1026.3 1020.4 1020.5 1017.1 1010.3 1007.7 1000.2 1001.6 1010.1 1016.4 1024.8 1025.3 1026.3 DAY 13 14 5 15 21 9 6 24 27 31 19 31 MIN. QFF PRESSURE IN HPA 1009.5 1003.5 1002.6 1000.3 1002.1 995.2 994.0 993.4 999.5 1006.1 1011.0 1015.8 993.4 DAY 10 22 1 13 23 22 27 6 4 6 11 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1018.0 1015.0 1012.1 1009.2 1005.2 1000.4 996.1 996.9 1003.5 1011.1 1016.1 1019.9 1008.6 MAX. QFE PRESSURE IN HPA 1025.5 1019.8 1019.3 1016.0 1009.5 1006.3 999.0 1001.1 1009.7 1016.2 1023.7 1024.6 1025.5 DAY 13 14 5 15 21 9 6 30 30 31 19 31 MIN. QFE PRESSURE IN HPA 1009.1 1001.8 1000.6 1000.7 1001.1 993.7 993.1 992.0 998.6 1006.0 1010.6 1014.7 992.0 DAY 10 22 1 13 23 22 25 6 4 6 11 22 MEAN QNH PRESSURE IN HPA 1018.5 1015.5 1012.6 1009.7 1005.7 1000.9 996.5 997.3 1004.0 1011.6 1016.6 1020.3 1009.1 MAX. QNH PRESSURE IN HPA 1026.0 1020.3 1019.8 1016.5 1010.0 1006.8 999.5 1001.6 1010.2 1016.7 1024.2 1025.1 1026.0 DAY 13 14 5 15 21 9 6 30 30 31 19 31 MIN. QNH PRESSURE IN HPA 1009.6 1002.3 1001.1 1001.2 1001.6 994.2 993.6 992.5 999.1 1006.5 1011.1 1015.2 992.5 DAY 10 22 1 13 23 22 25 6 4 6 11 22 MEAN QFF PRESSURE IN HPA 1018.8 1015.8 1012.9 1009.9 1005.9 1001.2 996.8 997.6 1004.1 1011.8 1016.9 1020.6 1009.4 MAX. QFF PRESSURE IN HPA 1026.3 1020.6 1020.1 1016.8 1010.2 1007.0 999.7 1001.8 1010.4 1017.0 1024.5 1025.4 1026.3 DAY 13 14 5 15 21 9 6 30 30 31 19 31 MIN. QFF PRESSURE IN HPA 1009.9 1002.6 1001.4 1001.4 1001.8 994.4 993.8 992.7 999.3 1006.7 1011.4 1015.5 992.7 DAY 10 22 1 13 23 22 25 6 4 6 11 22 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1018.9 1016.2 1013.2 1010.5 1006.3 1001.4 997.0 998.0 1004.6 1011.9 1016.7 1020.4 1009.6 MAX. QFE PRESSURE IN HPA 1026.5 1020.3 1020.5 1017.1 1010.7 1007.2 1000.3 1002.6 1011.2 1016.8 1024.5 1025.0 1026.5 DAY 12 14 5 15 7 9 4 30 30 31 18 31 MIN. QFE PRESSURE IN HPA 1010.3 1001.5 1002.6 1004.1 1002.3 994.5 993.8 992.4 1000.2 1006.9 1011.3 1014.9 992.4 DAY 10 22 1 13 23 22 27 6 4 5 11 22 MEAN QNH PRESSURE IN HPA 1019.4 1016.7 1013.7 1011.0 1006.8 1001.8 997.5 998.5 1005.1 1012.4 1017.2 1020.9 1010.1 MAX. QNH PRESSURE IN HPA 1027.0 1020.8 1021.0 1017.6 1011.2 1007.7 1000.8 1003.1 1011.7 1017.3 1025.0 1025.5 1027.0 DAY 12 14 5 15 7 9 4 30 30 31 18 31 MIN. QNH PRESSURE IN HPA 1010.8 1002.0 1003.1 1004.6 1002.8 995.0 994.3 992.9 1000.7 1007.4 1011.8 1015.4 992.9 DAY 10 22 1 13 23 22 27 6 4 5 11 22 MEAN QFF PRESSURE IN HPA 1019.7 1017.0 1014.0 1011.3 1007.0 1002.1 997.7 998.7 1005.3 1012.7 1017.4 1021.2 1010.3 MAX. QFF PRESSURE IN HPA 1027.3 1021.1 1021.3 1017.9 1011.4 1007.9 1001.0 1003.3 1011.9 1017.6 1025.3 1025.8 1027.3 DAY 12 14 5 15 7 9 4 30 30 31 18 31 MIN. QFF PRESSURE IN HPA 1011.1 1002.3 1003.4 1004.8 1003.0 995.2 994.5 993.1 1000.9 1007.6 1012.1 1015.7 993.1 DAY 10 22 1 13 23 22 27 6 4 5 11 22 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1018.8 1015.9 1013.4 1010.4 1006.1 1001.1 996.7 997.7 1004.5 1011.8 1016.5 1020.1 1009.4 MAX. QFE PRESSURE IN HPA 1026.7 1020.2 1020.4 1017.3 1010.3 1007.4 1000.0 1002.1 1010.8 1016.6 1024.9 1024.4 1026.7 DAY 12 14 4 15 7 9 5 31 30 31 18 31 MIN. QFE PRESSURE IN HPA 1011.1 1004.8 1006.4 1004.8 1002.0 995.1 993.5 992.6 1000.0 1006.2 1011.3 1014.0 992.6 DAY 16 22 17 12 3 22 25 6 4 5 11 22 MEAN QNH PRESSURE IN HPA 1019.3 1016.4 1013.9 1010.9 1006.6 1001.6 997.2 998.2 1005.0 1012.2 1017.0 1020.6 1009.9 MAX. QNH PRESSURE IN HPA 1027.2 1020.7 1020.9 1017.8 1010.8 1007.9 1000.5 1002.6 1011.3 1017.1 1025.4 1024.9 1027.2 DAY 12 14 4 15 7 9 5 31 30 31 18 31 MIN. QNH PRESSURE IN HPA 1011.6 1005.3 1006.9 1005.3 1002.5 995.6 994.0 993.1 1000.5 1006.7 1011.8 1014.5 993.1 DAY 16 22 17 12 3 22 25 6 4 5 11 22 MEAN QFF PRESSURE IN HPA 1019.5 1016.7 1014.2 1011.1 1006.9 1001.8 997.4 998.5 1005.2 1012.5 1017.3 1020.9 1010.2 MAX. QFF PRESSURE IN HPA 1027.5 1021.0 1021.2 1018.1 1011.0 1008.1 1000.7 1002.8 1011.5 1017.4 1025.7 1025.2 1027.5 DAY 12 14 4 15 7 9 5 31 30 31 18 31 MIN. QFF PRESSURE IN HPA 1011.9 1005.6 1007.2 1005.5 1002.7 995.8 994.2 993.3 1000.7 1006.9 1012.1 1014.8 993.3 DAY 16 22 17 12 3 22 25 6 4 5 11 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 14.1 14.8 16.3 25.1 30.3 34.9 36.1 35.7 31.6 26.8 19.0 10.8 24.6 MINIMUN AIR TEMPERATURE (C) 8.2 9.3 9.6 17.8 21.7 26.0 27.0 26.6 20.9 18.5 13.4 5.0 17.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 6 20 30 31 31 17 8 3 0 146 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 2 2 TEMPERATURE RECORDS LOWEST(C) 3.0 4.0 3.0 13.0 17.0 21.0 23.0 22.0 17.0 12.0 2.0 -1.0 -1.0 DAY 1 13 25 4 10 1 1 25 13 29 24 22 MAXIMUM AIR TEMPERATURE (C) 21.1 21.1 22.6 32.6 38.7 43.3 44.5 44.5 42.3 36.9 26.1 17.3 32.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 22 31 30 31 31 30 28 12 0 215 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 26.0 25.0 29.0 38.0 43.0 46.0 49.0 48.0 47.0 43.0 33.0 22.0 49.0 DAY 21 16 30 20 19 19 22 13 1 2 10 29 DIF. BETWEEN (MAX.-MIN.) (C) 12.9 11.8 13.0 14.8 17.0 17.3 17.5 17.9 21.4 18.4 12.7 12.3 15.6 MEAN DAILY TEMP. (MDT) (C) 14.7 15.2 16.1 25.2 30.2 34.6 35.7 35.5 31.6 27.7 19.7 11.2 24.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 1.0 128.5 286.5 409.5 456.5 451.0 318.0 207.0 39.0 0.0 2297.0 HEATING DEG. DAYS(BASE 18 0C) 111.5 81.0 74.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 43.5 212.0 522.5 DEWPOINT (MEAN C) 8.4 9.6 7.6 13.6 13.6 15.5 20.5 19.3 19.7 14.8 11.4 5.0 13.2 MIXING RATIO (G/KG) 7.12 7.63 6.73 10.02 10.06 11.68 16.35 14.74 15.16 11.02 9.12 5.60 10.43 VAPOUR PRESSURE (HPA) 11.50 12.30 10.85 16.00 16.01 18.43 25.43 23.08 23.86 17.58 14.65 9.10 16.57 SATURATION DEF. (HPA) 5.27 5.09 8.46 17.50 29.23 40.44 36.99 37.96 26.40 20.02 8.84 4.44 20.05 RELATIVE HUMIDITY (MEAN %) 72 74 61 54 40 36 44 42 52 54 64 70 55 RELATIVE HUMIDITY (MAX. %) 90 91 84 80 65 57 66 66 74 83 83 87 77 RELATIVE HUMIDITY (MIN. %) 45 50 38 31 21 19 28 23 35 24 41 49 34 RELATIVE HUMIDITY (MEAN% 03UTC) 87 87 80 75 58 51 62 60 67 76 76 81 72 RELATIVE HUMIDITY (MEAN% 09UTC) 58 59 45 36 24 23 31 26 39 29 49 56 40 RELATIVE HUMIDITY (MEAN% 15UTC) 68 64 49 41 28 26 35 33 45 44 60 67 47 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 5.1 44.5 47.4 17.1 2.0 0.0 0.0 0.0 0.0 0.0 14.2 36.6 166.9 DAYS WITH PRECIPITATION >=10 0 1 1 1 0 0 0 0 0 0 0 1 4 DAYS WITH PRECIPITATION >= 5 0 2 1 1 0 0 0 0 0 0 1 2 7 DAYS WITH PRECIPITATION >= 1 2 7 4 3 1 0 0 0 0 0 3 3 23 DAYS WITH PRECIPITATION 6 9 8 8 3 0 0 0 0 2 6 9 51 GREATEST DAILY PRECIPITATION 3.0 26.0 42.0 12.0 2.0 0.0 0.0 0.0 0.0 0.0 7.2 29.0 42.0 DAY 31 11 2 9 31 ** ** ** ** ** 29 14 DAY WITH THUNDER STORM 0 3 4 6 2 0 0 0 0 1 6 1 23 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 3 1 3 8 9 13 11 11 3 7 5 0 74 WIND DIRECTION (PREVAILING) 315 315 315 315 315 315 315 315 315 180 315 315 315 PREVAILING WIND SPEED(KNOTS) 3.3 9.2 8.7 8.9 12.8 14.6 13.9 11.9 10.4 6.3 8.3 6.5 10.3 PREVAILING WIND PERCENT 36.3 39.7 46.4 24.2 39.9 70.8 53.0 47.2 36.7 21.0 34.6 39.5 40.5 CALMS PERCENT OF WIND 5.2 4.9 7.3 7.9 6.5 7.1 7.3 9.7 19.6 19.4 7.9 15.3 9.9 NO. OF WIND OBSERVATION 248 224 248 240 248 240 247 248 240 248 240 248 2919 VECTOR WIND DIRECTION (MEAN) 319 292 322 327 309 312 304 308 310 297 298 322 310 VECTOR WIND MAGNITUDE(KNOTS) 0.6 2.0 3.6 1.7 5.6 10.5 6.4 6.9 4.4 1.0 1.3 3.1 3.9 WIND STEADINESES (MEAN %) 17.6 25.3 48.6 23.6 65.9 92.1 65.3 78.4 75.9 18.9 15.9 63.3 52.7 WIND SPEED (MEAN KNOTS) 3.4 7.9 7.4 7.2 8.5 11.4 9.8 8.8 5.8 5.3 8.2 4.9 7.4 FASTEST WIND DIRECTION 130 130 330 20 310 330 330 340 330 50 200 310 310 FASTEST WIND SPEED (KNOTS) 24 37 30 37 44 37 44 37 44 37 37 18 44 DAY 8 10 13 24 8 21 3 3 10 25 18 20 DAYS WITH SKY CLEAR (0-2)/8 12 8 15 14 17 26 28 30 30 21 12 14 227 DAYS WITH P.CLOUDY (3-6)/8 17 11 12 11 12 3 3 1 0 8 10 10 98 DAYS WITH CLOUDY (7-8)/8 2 9 4 5 2 1 0 0 0 2 8 7 40 DAYS WITH VISIBILITY =< 2 KM 6 1 1 3 5 5 6 4 2 6 4 1 44 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1018.5 1016.9 1016.2 1010.6 1007.2 1001.0 996.5 998.6 1004.9 1011.6 1017.5 1021.0 1010.0 MAX. QFE PRESSURE IN HPA 1028.9 1026.2 1025.3 1018.2 1010.5 1007.3 1000.4 1007.9 1012.1 1018.9 1026.5 1029.7 1029.7 DAY-HOUR 2- 6 15- 6 9- 6 10-12 1- 6 6- 6 18- 6 31- 6 30- 6 27- 6 23- 9 22- 6 MIN. QFE PRESSURE IN HPA 1008.5 1002.1 1005.4 1003.8 1002.3 994.2 993.5 993.1 998.0 1005.7 1008.1 1013.2 993.1 DAY-HOUR 11-12 2- 3 12-15 25-12 7-12 28- 0 23-15 5- 0 2-15 3-12 19-12 14-12 MEAN QNH PRESSURE IN HPA 1019.0 1017.4 1016.7 1011.0 1007.7 1001.5 996.9 999.0 1005.4 1012.1 1018.0 1021.5 1010.5 MAX. QNH PRESSURE IN HPA 1029.4 1026.7 1025.8 1018.7 1011.0 1007.8 1000.9 1008.4 1012.6 1019.4 1027.0 1030.2 1030.2 DAY-HOUR 2- 6 15- 6 9- 6 10-12 1- 6 6- 6 18- 6 31- 6 30- 6 27- 6 23- 9 22- 6 MIN. QNH PRESSURE IN HPA 1009.0 1002.6 1005.9 1004.3 1002.8 994.7 994.0 993.6 998.5 1006.2 1008.6 1013.7 993.6 DAY-HOUR 11-12 2- 3 12-15 25-12 7-12 28- 0 23-15 5- 0 2-15 3-12 19-12 14-12 MEAN QFF PRESSURE IN HPA 1019.3 1017.7 1017.0 1011.3 1007.9 1001.7 997.2 999.3 1005.6 1012.4 1018.3 1021.8 1010.8 MAX. QFF PRESSURE IN HPA 1029.7 1027.0 1026.1 1019.0 1011.2 1008.0 1001.1 1008.6 1012.8 1019.7 1027.3 1030.5 1030.5 DAY-HOUR 2- 6 15- 6 9- 6 10-12 1- 6 6- 6 18- 6 31- 6 30- 6 27- 6 23- 9 22- 6 MIN. QFF PRESSURE IN HPA 1009.3 1002.9 1006.2 1004.5 1003.0 994.9 994.2 993.8 998.7 1006.4 1008.9 1014.0 993.8 DAY-HOUR 11-12 2- 3 12-15 25-12 7-12 28- 0 23-15 5- 0 2-15 3-12 19-12 14-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1018.5 1016.5 1015.6 1010.0 1006.8 1000.5 996.0 997.9 1004.4 1011.1 1017.2 1020.9 1009.6 MAX. QFE PRESSURE IN HPA 1027.1 1024.5 1023.0 1016.1 1009.4 1005.7 998.8 1005.9 1010.0 1016.1 1025.7 1028.7 1028.7 DAY 3 16 28 3 15 6 18 31 30 26 23 23 MIN. QFE PRESSURE IN HPA 1009.2 1004.0 1007.0 1005.1 1003.4 994.2 993.6 993.1 999.4 1006.8 1010.3 1016.1 993.1 DAY 11 2 20 20 29 28 12 5 2 3 19 29 MEAN QNH PRESSURE IN HPA 1019.0 1017.0 1016.1 1010.5 1007.3 1001.0 996.5 998.4 1004.9 1011.6 1017.7 1021.4 1010.1 MAX. QNH PRESSURE IN HPA 1027.6 1025.0 1023.5 1016.6 1009.9 1006.2 999.3 1006.4 1010.5 1016.6 1026.2 1029.2 1029.2 DAY 3 16 28 3 15 6 18 31 30 26 23 23 MIN. QNH PRESSURE IN HPA 1009.7 1004.5 1007.5 1005.6 1003.9 994.7 994.1 993.6 999.9 1007.3 1010.8 1016.6 993.6 DAY 11 2 20 20 29 28 12 5 2 3 19 29 MEAN QFF PRESSURE IN HPA 1019.3 1017.3 1016.3 1010.8 1007.6 1001.3 996.8 998.6 1005.1 1011.9 1017.9 1021.7 1010.4 MAX. QFF PRESSURE IN HPA 1027.9 1025.3 1023.8 1016.9 1010.1 1006.4 999.5 1006.6 1010.7 1016.9 1026.5 1029.5 1029.5 DAY 3 16 28 3 15 6 18 31 30 26 23 23 MIN. QFF PRESSURE IN HPA 1010.0 1004.8 1007.8 1005.8 1004.1 994.9 994.3 993.8 1000.1 1007.5 1011.1 1016.9 993.8 DAY 11 2 20 20 29 28 12 5 2 3 19 29 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1018.8 1016.8 1016.4 1010.7 1007.4 1001.1 996.6 998.8 1005.1 1011.8 1017.4 1021.2 1010.2 MAX. QFE PRESSURE IN HPA 1027.7 1025.0 1023.5 1016.8 1009.8 1006.4 999.7 1006.8 1010.5 1016.9 1026.0 1028.3 1028.3 DAY 3 16 9 3 15 6 18 31 30 27 23 23 MIN. QFE PRESSURE IN HPA 1009.2 1002.1 1008.8 1005.3 1004.3 994.9 994.0 994.0 1000.1 1007.4 1010.0 1015.8 994.0 DAY 11 2 20 20 29 28 5 5 2 3 5 14 MEAN QNH PRESSURE IN HPA 1019.3 1017.3 1016.9 1011.2 1007.9 1001.6 997.1 999.3 1005.6 1012.3 1017.9 1021.7 1010.7 MAX. QNH PRESSURE IN HPA 1028.2 1025.5 1024.0 1017.3 1010.3 1006.9 1000.2 1007.3 1011.0 1017.4 1026.5 1028.8 1028.8 DAY 3 16 9 3 15 6 18 31 30 27 23 23 MIN. QNH PRESSURE IN HPA 1009.7 1002.6 1009.3 1005.8 1004.8 995.4 994.5 994.5 1000.6 1007.9 1010.5 1016.3 994.5 DAY 11 2 20 20 29 28 5 5 2 3 5 14 MEAN QFF PRESSURE IN HPA 1019.6 1017.6 1017.2 1011.4 1008.2 1001.8 997.4 999.5 1005.8 1012.6 1018.2 1022.0 1010.9 MAX. QFF PRESSURE IN HPA 1028.5 1025.8 1024.3 1017.6 1010.5 1007.1 1000.4 1007.5 1011.3 1017.7 1026.8 1029.1 1029.1 DAY 3 16 9 3 15 6 18 31 30 27 23 23 MIN. QFF PRESSURE IN HPA 1010.0 1002.9 1009.6 1006.0 1005.0 995.6 994.7 994.7 1000.8 1008.1 1010.8 1016.6 994.7 DAY 11 2 20 20 29 28 5 5 2 3 19 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1020.1 1018.3 1017.6 1011.9 1008.3 1001.8 997.5 999.8 1006.3 1013.2 1019.0 1022.4 1011.4 MAX. QFE PRESSURE IN HPA 1028.9 1026.2 1025.3 1017.1 1010.5 1007.3 1000.4 1007.9 1012.1 1018.9 1026.0 1029.7 1029.7 DAY 2 15 9 1 1 6 18 31 30 27 23 22 MIN. QFE PRESSURE IN HPA 1011.0 1007.9 1010.7 1007.4 1006.1 995.5 994.7 994.9 1001.1 1008.2 1010.7 1016.2 994.7 DAY 11 2 20 20 12 28 6 5 2 3 19 14 MEAN QNH PRESSURE IN HPA 1020.6 1018.8 1018.1 1012.4 1008.8 1002.3 997.9 1000.3 1006.8 1013.7 1019.5 1022.9 1011.8 MAX. QNH PRESSURE IN HPA 1029.4 1026.7 1025.8 1017.6 1011.0 1007.8 1000.9 1008.4 1012.6 1019.4 1026.5 1030.2 1030.2 DAY 2 15 9 1 1 6 18 31 30 27 23 22 MIN. QNH PRESSURE IN HPA 1011.5 1008.4 1011.2 1007.9 1006.6 996.0 995.2 995.4 1001.6 1008.7 1011.2 1016.7 995.2 DAY 11 2 20 20 12 28 6 5 2 3 19 14 MEAN QFF PRESSURE IN HPA 1020.9 1019.1 1018.4 1012.7 1009.1 1002.5 998.2 1000.5 1007.1 1013.9 1019.8 1023.2 1012.1 MAX. QFF PRESSURE IN HPA 1029.7 1027.0 1026.1 1017.9 1011.2 1008.0 1001.1 1008.6 1012.8 1019.7 1026.8 1030.5 1030.5 DAY 2 15 9 1 1 6 18 31 30 27 23 22 MIN. QFF PRESSURE IN HPA 1011.8 1008.7 1011.5 1008.1 1006.8 996.2 995.4 995.6 1001.8 1008.9 1011.5 1017.0 995.4 DAY 11 2 20 20 12 28 6 5 2 3 19 14 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1018.6 1017.5 1016.8 1011.3 1007.8 1001.6 997.1 999.2 1005.5 1012.0 1017.8 1021.2 1010.5 MAX. QFE PRESSURE IN HPA 1027.3 1025.6 1023.8 1017.4 1010.3 1006.8 1000.1 1006.7 1010.9 1018.1 1026.5 1028.1 1028.1 DAY 2 16 9 3 15 6 18 30 30 27 23 22 MIN. QFE PRESSURE IN HPA 1010.0 1010.1 1008.4 1006.5 1005.3 995.4 995.1 994.8 1000.4 1007.2 1009.4 1014.5 994.8 DAY 23 2 12 20 7 28 11 5 2 3 19 14 MEAN QNH PRESSURE IN HPA 1019.1 1017.9 1017.3 1011.8 1008.3 1002.0 997.6 999.7 1006.0 1012.5 1018.3 1021.7 1011.0 MAX. QNH PRESSURE IN HPA 1027.8 1026.1 1024.3 1017.9 1010.8 1007.3 1000.6 1007.2 1011.4 1018.6 1027.0 1028.6 1028.6 DAY 2 16 9 3 15 6 18 30 30 27 23 22 MIN. QNH PRESSURE IN HPA 1010.5 1010.6 1008.9 1007.0 1005.8 995.9 995.6 995.3 1000.9 1007.7 1009.9 1015.0 995.3 DAY 23 2 12 20 7 28 11 5 2 3 19 14 MEAN QFF PRESSURE IN HPA 1019.4 1018.2 1017.6 1012.0 1008.5 1002.3 997.8 999.9 1006.2 1012.8 1018.6 1022.0 1011.3 MAX. QFF PRESSURE IN HPA 1028.1 1026.4 1024.6 1018.2 1011.0 1007.5 1000.8 1007.4 1011.6 1018.9 1027.3 1028.9 1028.9 DAY 2 16 9 3 15 6 18 30 30 27 23 22 MIN. QFF PRESSURE IN HPA 1010.8 1010.9 1009.2 1007.2 1006.0 996.1 995.8 995.5 1001.1 1007.9 1010.2 1015.3 995.5 DAY 23 2 12 20 7 28 11 5 2 3 19 14 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1017.4 1016.0 1015.3 1009.9 1006.4 1000.6 996.0 998.0 1004.1 1010.6 1016.4 1019.8 1009.2 MAX. QFE PRESSURE IN HPA 1026.4 1023.8 1022.7 1018.2 1009.5 1005.9 999.0 1005.2 1009.6 1016.4 1023.7 1027.3 1027.3 DAY 2 16 28 10 15 5 18 30 30 27 23 22 MIN. QFE PRESSURE IN HPA 1008.5 1009.5 1006.1 1003.8 1002.3 994.8 994.0 993.5 998.6 1005.7 1008.1 1013.2 993.5 DAY 11 1 20 25 7 28 24 5 2 3 19 14 MEAN QNH PRESSURE IN HPA 1017.9 1016.5 1015.8 1010.4 1006.9 1001.1 996.5 998.5 1004.5 1011.1 1016.9 1020.3 1009.7 MAX. QNH PRESSURE IN HPA 1026.9 1024.3 1023.2 1018.7 1010.0 1006.4 999.5 1005.7 1010.1 1016.9 1024.2 1027.8 1027.8 DAY 2 16 28 10 15 5 18 30 30 27 23 22 MIN. QNH PRESSURE IN HPA 1009.0 1010.0 1006.6 1004.3 1002.8 995.3 994.5 994.0 999.1 1006.2 1008.6 1013.7 994.0 DAY 11 1 20 25 7 28 24 5 2 3 19 14 MEAN QFF PRESSURE IN HPA 1018.2 1016.8 1016.0 1010.7 1007.2 1001.3 996.7 998.7 1004.8 1011.4 1017.2 1020.6 1010.0 MAX. QFF PRESSURE IN HPA 1027.2 1024.6 1023.5 1019.0 1010.2 1006.6 999.7 1005.9 1010.3 1017.2 1024.5 1028.1 1028.1 DAY 2 16 28 10 15 5 18 30 30 27 23 22 MIN. QFF PRESSURE IN HPA 1009.3 1010.3 1006.9 1004.5 1003.0 995.5 994.7 994.2 999.3 1006.4 1008.9 1014.0 994.2 DAY 11 1 20 25 7 28 24 5 2 3 19 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1017.9 1016.3 1015.3 1009.4 1006.4 1000.2 995.6 997.7 1004.0 1010.9 1016.9 1020.4 1009.3 MAX. QFE PRESSURE IN HPA 1027.1 1024.2 1022.2 1015.5 1009.0 1005.6 998.6 1005.4 1009.6 1016.5 1024.8 1027.7 1027.7 DAY 2 15 9 3 15 5 18 30 30 27 29 22 MIN. QFE PRESSURE IN HPA 1008.9 1008.9 1005.4 1003.9 1003.2 994.4 993.5 993.4 998.0 1006.2 1010.9 1015.4 993.4 DAY 11 1 12 25 7 27 23 4 2 3 19 14 MEAN QNH PRESSURE IN HPA 1018.4 1016.8 1015.8 1009.9 1006.9 1000.7 996.1 998.1 1004.5 1011.4 1017.4 1020.9 1009.7 MAX. QNH PRESSURE IN HPA 1027.6 1024.7 1022.7 1016.0 1009.5 1006.1 999.1 1005.9 1010.1 1017.0 1025.3 1028.2 1028.2 DAY 2 15 9 3 15 5 18 30 30 27 29 22 MIN. QNH PRESSURE IN HPA 1009.4 1009.4 1005.9 1004.4 1003.7 994.9 994.0 993.9 998.5 1006.7 1011.4 1015.9 993.9 DAY 11 1 12 25 7 27 23 4 2 3 19 14 MEAN QFF PRESSURE IN HPA 1018.7 1017.1 1016.0 1010.1 1007.2 1001.0 996.3 998.4 1004.7 1011.7 1017.7 1021.2 1010.0 MAX. QFF PRESSURE IN HPA 1027.9 1025.0 1023.0 1016.3 1009.7 1006.3 999.3 1006.1 1010.4 1017.3 1025.6 1028.5 1028.5 DAY 2 15 9 3 15 5 18 30 30 27 29 22 MIN. QFF PRESSURE IN HPA 1009.7 1009.7 1006.2 1004.6 1003.9 995.1 994.2 994.1 998.7 1006.9 1011.7 1016.2 994.1 DAY 11 1 12 25 7 27 23 4 2 3 19 14 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1018.5 1017.3 1016.4 1010.8 1007.3 1001.2 996.5 998.7 1005.0 1011.8 1017.8 1020.9 1010.2 MAX. QFE PRESSURE IN HPA 1027.2 1025.0 1023.2 1016.8 1009.5 1006.7 999.8 1006.7 1010.6 1016.6 1025.2 1028.2 1028.2 DAY 2 15 27 2 25 5 17 30 30 26 22 22 MIN. QFE PRESSURE IN HPA 1009.6 1007.7 1007.7 1005.4 1004.8 995.3 994.3 994.0 999.3 1007.5 1012.7 1017.0 994.0 DAY 11 1 12 19 28 27 23 4 2 2 18 19 MEAN QNH PRESSURE IN HPA 1019.0 1017.8 1016.9 1011.3 1007.8 1001.6 997.0 999.2 1005.5 1012.3 1018.3 1021.4 1010.7 MAX. QNH PRESSURE IN HPA 1027.7 1025.5 1023.7 1017.3 1010.0 1007.2 1000.3 1007.2 1011.1 1017.1 1025.7 1028.7 1028.7 DAY 2 15 27 2 25 5 17 30 30 26 22 22 MIN. QNH PRESSURE IN HPA 1010.1 1008.2 1008.2 1005.9 1005.3 995.8 994.8 994.5 999.8 1008.0 1013.2 1017.5 994.5 DAY 11 1 12 19 28 27 23 4 2 2 18 19 MEAN QFF PRESSURE IN HPA 1019.3 1018.1 1017.2 1011.5 1008.0 1001.9 997.2 999.4 1005.8 1012.5 1018.6 1021.8 1010.9 MAX. QFF PRESSURE IN HPA 1028.0 1025.8 1024.0 1017.6 1010.2 1007.4 1000.5 1007.4 1011.3 1017.4 1026.0 1029.0 1029.0 DAY 2 15 27 2 25 5 17 30 30 26 29 22 MIN. QFF PRESSURE IN HPA 1010.4 1008.5 1008.5 1006.1 1005.5 996.0 995.0 994.7 1000.0 1008.2 1013.5 1017.8 994.7 DAY 11 1 12 19 28 27 23 4 2 2 18 19 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1018.3 1017.0 1016.3 1010.6 1007.2 1000.9 996.4 998.5 1004.9 1011.6 1017.6 1020.9 1010.0 MAX. QFE PRESSURE IN HPA 1027.7 1024.7 1023.2 1016.4 1009.6 1006.3 999.9 1006.9 1010.6 1016.0 1025.4 1028.3 1028.3 DAY 2 15 27 2 14 5 18 30 30 11 22 22 MIN. QFE PRESSURE IN HPA 1009.7 1007.2 1008.4 1005.7 1004.5 994.9 994.0 993.6 999.4 1007.4 1012.7 1016.7 993.6 DAY 10 1 12 19 28 27 23 4 2 2 18 28 MEAN QNH PRESSURE IN HPA 1018.8 1017.5 1016.8 1011.1 1007.6 1001.4 996.9 999.0 1005.4 1012.1 1018.1 1021.4 1010.5 MAX. QNH PRESSURE IN HPA 1028.2 1025.2 1023.7 1016.9 1010.1 1006.8 1000.4 1007.4 1011.1 1016.5 1025.9 1028.8 1028.8 DAY 2 15 27 2 14 5 18 30 30 11 22 22 MIN. QNH PRESSURE IN HPA 1010.2 1007.7 1008.9 1006.2 1005.0 995.4 994.5 994.1 999.9 1007.9 1013.2 1017.2 994.1 DAY 10 1 12 19 28 27 23 4 2 2 18 28 MEAN QFF PRESSURE IN HPA 1019.1 1017.8 1017.1 1011.3 1007.9 1001.6 997.1 999.2 1005.6 1012.3 1018.4 1021.7 1010.8 MAX. QFF PRESSURE IN HPA 1028.5 1025.5 1024.0 1017.2 1010.3 1007.0 1000.6 1007.6 1011.3 1016.8 1026.2 1029.1 1029.1 DAY 2 15 27 2 14 5 18 30 30 26 22 22 MIN. QFF PRESSURE IN HPA 1010.5 1008.0 1009.2 1006.4 1005.2 995.6 994.7 994.3 1000.1 1008.1 1013.5 1017.5 994.3 DAY 10 1 12 19 28 27 23 4 2 2 18 28 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 12.6 14.8 18.7 24.1 30.7 34.1 36.1 35.8 32.1 26.4 19.5 14.4 24.9 MINIMUN AIR TEMPERATURE (C) 5.8 8.6 11.8 17.6 22.7 26.2 27.6 27.0 22.4 17.2 15.0 11.0 17.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 7 23 30 31 31 25 4 0 0 151 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) 1.0 4.0 3.0 12.0 17.0 22.0 24.0 23.0 17.0 14.0 10.0 6.0 1.0 DAY 20 1 1 4 19 10 12 27 28 29 17 18 MAXIMUM AIR TEMPERATURE (C) 20.0 21.1 25.2 31.0 38.5 42.0 44.7 45.6 42.6 37.3 25.7 18.8 32.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 3 18 31 30 31 31 30 31 6 0 211 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 24.0 24.0 32.0 39.0 43.0 47.0 49.0 48.0 48.0 41.0 35.0 25.0 49.0 DAY 11 6 31 25 30 25 16 17 1 2 1 27 DIF. BETWEEN (MAX.-MIN.) (C) 14.2 12.5 13.4 13.4 15.8 15.8 17.1 18.6 20.2 20.1 10.7 7.8 15.0 MEAN DAILY TEMP. (MDT) (C) 12.9 14.8 18.5 24.3 30.6 34.1 36.1 36.3 32.5 27.3 20.3 14.9 25.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 4.0 107.5 297.5 392.5 469.0 474.0 345.0 194.5 31.0 0.0 2315.0 HEATING DEG. DAYS(BASE 18 0C) 160.0 89.0 26.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12.0 102.5 390.0 DEWPOINT (MEAN C) 4.3 8.1 10.9 11.9 14.6 16.4 20.5 18.3 13.6 14.3 14.3 12.4 13.3 MIXING RATIO (G/KG) 5.52 6.94 8.34 8.91 10.76 12.27 16.16 14.00 10.10 10.42 10.23 9.07 10.23 VAPOUR PRESSURE (HPA) 8.92 11.19 13.40 14.25 17.09 19.29 25.16 21.90 15.99 16.66 16.44 14.63 16.24 SATURATION DEF. (HPA) 6.29 6.11 9.00 17.24 29.07 36.10 37.17 39.77 34.74 20.21 6.96 2.11 20.40 RELATIVE HUMIDITY (MEAN %) 62 68 64 52 42 39 46 41 37 53 75 89 56 RELATIVE HUMIDITY (MAX. %) 83 88 86 77 68 67 75 70 63 80 90 99 79 RELATIVE HUMIDITY (MIN. %) 34 43 41 29 20 18 23 17 15 24 56 74 33 RELATIVE HUMIDITY (MEAN% 03UTC) 81 84 82 74 64 61 64 63 58 76 84 96 74 RELATIVE HUMIDITY (MEAN% 09UTC) 46 53 47 34 24 20 27 20 21 29 63 79 39 RELATIVE HUMIDITY (MEAN% 15UTC) 51 56 53 37 29 27 32 28 26 43 71 88 45 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 3.6 26.4 43.4 39.4 1.0 0.0 0.0 0.0 0.0 0.0 136.1 72.9 322.8 DAYS WITH PRECIPITATION >=10 0 1 1 1 0 0 0 0 0 0 7 2 12 DAYS WITH PRECIPITATION >= 5 0 2 4 1 0 0 0 0 0 0 8 5 20 DAYS WITH PRECIPITATION >= 1 2 6 8 4 1 0 0 0 0 0 11 8 40 DAYS WITH PRECIPITATION 5 11 13 7 2 0 0 0 0 1 14 13 66 GREATEST DAILY PRECIPITATION 2.0 11.0 14.0 31.0 1.0 0.0 0.0 0.0 0.0 0.0 31.0 29.0 31.0 DAY 3 15 24 3 7 ** ** ** ** ** 30 13 DAY WITH THUNDER STORM 2 5 8 4 2 0 0 0 0 1 12 5 39 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 4 6 5 10 10 15 12 7 7 4 0 0 80 WIND DIRECTION (PREVAILING) 315 180 180 180 360 360 360 315 360 270 360 360 360 PREVAILING WIND SPEED(KNOTS) 8.2 10.3 8.2 10.3 13.7 14.7 9.5 9.9 7.3 3.4 5.8 6.4 9.3 PREVAILING WIND PERCENT 29.8 24.6 17.7 20.0 45.2 34.2 28.6 23.8 36.3 17.3 27.1 31.9 24.9 CALMS PERCENT OF WIND 11.7 15.6 14.1 9.6 7.3 8.3 15.7 23.4 16.3 22.6 15.8 9.3 14.1 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 313 212 86 121 331 322 322 309 329 288 46 350 325 VECTOR WIND MAGNITUDE(KNOTS) 2.5 1.7 0.8 0.4 8.6 8.6 3.4 3.9 4.2 1.2 1.7 1.6 2.7 WIND STEADINESES (MEAN %) 36.2 22.4 9.9 5.1 87.8 89.6 59.6 70.9 84.0 36.4 34.7 28.6 40.3 WIND SPEED (MEAN KNOTS) 6.9 7.6 8.1 7.8 9.8 9.6 5.7 5.5 5.0 3.3 4.9 5.6 6.7 FASTEST WIND DIRECTION 340 180 130 180 310 340 340 340 340 200 130 130 130 FASTEST WIND SPEED (KNOTS) 27 35 40 35 30 27 20 30 20 20 20 24 40 DAY 17 4 6 24 23 1 6 9 21 3 23 28 DAYS WITH SKY CLEAR (0-2)/8 17 9 12 13 26 30 31 30 30 28 6 8 240 DAYS WITH P.CLOUDY (3-6)/8 12 13 13 11 5 0 0 1 0 3 12 10 80 DAYS WITH CLOUDY (7-8)/8 2 6 6 6 0 0 0 0 0 0 12 13 45 DAYS WITH VISIBILITY =< 2 KM 3 5 3 3 0 4 1 3 3 4 1 11 41 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1016.6 1015.2 1014.5 1009.6 1006.1 999.0 995.6 997.4 1002.7 1011.4 1016.5 1018.5 1008.6 MAX. QFE PRESSURE IN HPA 1023.6 1023.9 1024.9 1015.5 1012.5 1003.4 1000.6 1005.0 1009.3 1017.6 1021.3 1028.1 1028.1 DAY-HOUR 16- 6 21-18 2- 6 16- 6 16- 6 3- 6 30- 6 30- 6 4-21 20- 6 5- 6 15- 6 MIN. QFE PRESSURE IN HPA 1007.7 1002.2 1004.9 1001.4 999.9 994.8 990.4 991.2 997.2 1002.5 1011.1 1007.6 990.4 DAY-HOUR 11- 9 15-12 7-12 11- 0 27- 0 6- 0 11-15 3-15 2- 0 1- 0 23- 9 30-12 MEAN QNH PRESSURE IN HPA 1017.1 1015.7 1015.0 1010.0 1006.5 999.5 996.0 997.9 1003.1 1011.8 1017.0 1019.0 1009.1 MAX. QNH PRESSURE IN HPA 1024.1 1024.4 1025.4 1016.0 1013.0 1003.9 1001.1 1005.5 1009.8 1018.1 1021.8 1028.6 1028.6 DAY-HOUR 16- 6 21-18 2- 6 16- 6 16- 6 3- 6 30- 6 30- 6 4-21 20- 6 5- 6 15- 6 MIN. QNH PRESSURE IN HPA 1008.2 1002.7 1005.4 1001.9 1000.4 995.3 990.9 991.7 997.7 1003.0 1011.6 1008.1 990.9 DAY-HOUR 11- 9 15-12 7-12 11- 0 27- 0 6- 0 11-15 3-15 2- 0 1- 0 23- 9 30-12 MEAN QFF PRESSURE IN HPA 1017.4 1016.0 1015.2 1010.3 1006.8 999.7 996.3 998.1 1003.4 1012.1 1017.3 1019.3 1009.3 MAX. QFF PRESSURE IN HPA 1024.4 1024.7 1025.7 1016.3 1013.2 1004.1 1001.3 1005.7 1010.0 1018.4 1022.1 1028.9 1028.9 DAY-HOUR 16- 6 21-18 2- 6 16- 6 16- 6 3- 6 30- 6 30- 6 4-21 20- 6 5- 6 15- 6 MIN. QFF PRESSURE IN HPA 1008.5 1003.0 1005.7 1002.1 1000.6 995.5 991.1 991.9 997.9 1003.2 1011.9 1008.4 991.1 DAY-HOUR 11- 9 15-12 7-12 11- 0 27- 0 6- 0 11-15 3-15 2- 0 1- 0 23- 9 30-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1016.6 1014.8 1014.1 1008.8 1005.5 998.4 994.9 996.9 1002.1 1010.9 1016.2 1018.3 1008.1 MAX. QFE PRESSURE IN HPA 1021.4 1023.1 1023.2 1012.9 1010.9 1001.8 998.0 1003.0 1007.9 1014.8 1019.5 1026.0 1026.0 DAY 8 22 2 16 1 3 14 31 29 20 20 16 MIN. QFE PRESSURE IN HPA 1009.2 1005.6 1005.0 1001.4 999.9 994.8 991.2 992.6 997.2 1002.5 1011.8 1008.8 991.2 DAY 28 16 7 11 27 6 12 3 2 1 1 6 MEAN QNH PRESSURE IN HPA 1017.1 1015.3 1014.6 1009.3 1006.0 998.9 995.4 997.4 1002.6 1011.4 1016.7 1018.8 1008.6 MAX. QNH PRESSURE IN HPA 1021.9 1023.6 1023.7 1013.4 1011.4 1002.3 998.5 1003.5 1008.4 1015.3 1020.0 1026.5 1026.5 DAY 8 22 2 16 1 3 14 31 29 20 20 16 MIN. QNH PRESSURE IN HPA 1009.7 1006.1 1005.5 1001.9 1000.4 995.3 991.7 993.1 997.7 1003.0 1012.3 1009.3 991.7 DAY 28 16 7 11 27 6 12 3 2 1 1 6 MEAN QFF PRESSURE IN HPA 1017.4 1015.6 1014.8 1009.5 1006.3 999.1 995.6 997.6 1002.9 1011.6 1016.9 1019.1 1008.9 MAX. QFF PRESSURE IN HPA 1022.2 1023.9 1024.0 1013.7 1011.6 1002.5 998.7 1003.7 1008.6 1015.6 1020.3 1026.8 1026.8 DAY 8 22 2 16 1 3 14 31 29 20 29 16 MIN. QFF PRESSURE IN HPA 1010.0 1006.4 1005.8 1002.1 1000.6 995.5 991.9 993.3 997.9 1003.2 1012.5 1009.6 991.9 DAY 28 16 7 11 27 6 12 3 2 1 1 6 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1016.5 1015.1 1014.8 1009.5 1006.2 999.0 995.8 997.7 1003.0 1011.5 1016.7 1018.4 1008.7 MAX. QFE PRESSURE IN HPA 1021.4 1022.7 1024.0 1014.0 1010.6 1002.3 999.4 1003.1 1008.0 1016.5 1020.4 1026.4 1026.4 DAY 16 22 2 16 1 3 30 31 29 20 20 15 MIN. QFE PRESSURE IN HPA 1007.8 1005.6 1005.0 1001.7 1000.8 995.7 991.9 993.4 998.7 1003.6 1012.7 1010.1 991.9 DAY 11 16 7 11 27 6 12 3 2 1 1 6 MEAN QNH PRESSURE IN HPA 1017.0 1015.6 1015.3 1010.0 1006.7 999.5 996.2 998.1 1003.5 1012.0 1017.2 1018.9 1009.2 MAX. QNH PRESSURE IN HPA 1021.9 1023.2 1024.5 1014.5 1011.1 1002.8 999.9 1003.6 1008.5 1017.0 1020.9 1026.9 1026.9 DAY 16 22 2 16 1 3 30 31 29 20 20 15 MIN. QNH PRESSURE IN HPA 1008.3 1006.1 1005.5 1002.2 1001.3 996.2 992.4 993.9 999.2 1004.1 1013.2 1010.6 992.4 DAY 11 16 7 11 27 6 12 3 2 1 1 6 MEAN QFF PRESSURE IN HPA 1017.3 1015.9 1015.6 1010.3 1006.9 999.8 996.5 998.4 1003.7 1012.3 1017.5 1019.2 1009.4 MAX. QFF PRESSURE IN HPA 1022.2 1023.5 1024.8 1014.8 1011.3 1003.0 1000.1 1003.8 1008.7 1017.3 1021.2 1027.2 1027.2 DAY 16 22 2 16 1 3 30 31 29 20 20 15 MIN. QFF PRESSURE IN HPA 1008.6 1006.4 1005.8 1002.5 1001.5 996.4 992.6 994.1 999.4 1004.3 1013.5 1010.9 992.6 DAY 11 16 7 11 27 6 12 3 2 1 1 6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1018.1 1016.5 1016.0 1010.7 1007.3 999.8 996.6 998.8 1004.0 1012.9 1018.0 1019.8 1009.9 MAX. QFE PRESSURE IN HPA 1023.6 1023.7 1024.9 1015.5 1012.5 1003.4 1000.6 1005.0 1008.9 1017.6 1021.3 1028.1 1028.1 DAY 16 22 2 16 16 3 30 30 28 20 5 15 MIN. QFE PRESSURE IN HPA 1008.9 1005.2 1006.9 1003.6 1001.3 996.1 992.6 993.6 999.1 1005.3 1013.4 1011.3 992.6 DAY 11 15 7 11 27 6 12 3 2 1 1 6 MEAN QNH PRESSURE IN HPA 1018.6 1017.0 1016.5 1011.2 1007.8 1000.3 997.1 999.2 1004.5 1013.4 1018.5 1020.3 1010.4 MAX. QNH PRESSURE IN HPA 1024.1 1024.2 1025.4 1016.0 1013.0 1003.9 1001.1 1005.5 1009.4 1018.1 1021.8 1028.6 1028.6 DAY 16 22 2 16 16 3 30 30 28 20 5 15 MIN. QNH PRESSURE IN HPA 1009.4 1005.7 1007.4 1004.1 1001.8 996.6 993.1 994.1 999.6 1005.8 1013.9 1011.8 993.1 DAY 11 15 7 11 27 6 12 3 2 1 1 6 MEAN QFF PRESSURE IN HPA 1018.9 1017.3 1016.7 1011.5 1008.0 1000.6 997.3 999.5 1004.7 1013.6 1018.7 1020.5 1010.6 MAX. QFF PRESSURE IN HPA 1024.4 1024.5 1025.7 1016.3 1013.2 1004.1 1001.3 1005.7 1009.6 1018.4 1022.1 1028.9 1028.9 DAY 16 22 2 16 16 3 30 30 28 20 5 15 MIN. QFF PRESSURE IN HPA 1009.7 1006.0 1007.7 1004.4 1002.0 996.8 993.3 994.3 999.8 1006.0 1014.2 1012.1 993.3 DAY 11 15 7 11 27 6 12 3 2 1 1 6 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1016.8 1015.7 1015.4 1010.2 1007.0 999.8 996.5 998.3 1003.3 1011.9 1016.8 1018.7 1009.2 MAX. QFE PRESSURE IN HPA 1022.6 1022.2 1024.0 1014.4 1011.8 1002.6 1000.4 1003.9 1008.3 1015.9 1020.2 1026.7 1026.7 DAY 16 3 1 16 16 3 30 30 28 20 29 15 MIN. QFE PRESSURE IN HPA 1007.7 1003.9 1006.1 1004.5 1001.5 995.9 992.5 993.2 999.0 1005.4 1011.1 1008.7 992.5 DAY 11 15 7 2 27 5 11 3 2 1 23 30 MEAN QNH PRESSURE IN HPA 1017.3 1016.2 1015.9 1010.7 1007.5 1000.2 997.0 998.8 1003.8 1012.4 1017.3 1019.2 1009.7 MAX. QNH PRESSURE IN HPA 1023.1 1022.7 1024.5 1014.9 1012.3 1003.1 1000.9 1004.4 1008.8 1016.4 1020.7 1027.2 1027.2 DAY 16 3 1 16 16 3 30 30 28 20 29 15 MIN. QNH PRESSURE IN HPA 1008.2 1004.4 1006.6 1005.0 1002.0 996.4 993.0 993.7 999.5 1005.9 1011.6 1009.2 993.0 DAY 11 15 7 2 27 5 11 3 2 1 23 30 MEAN QFF PRESSURE IN HPA 1017.6 1016.5 1016.1 1011.0 1007.8 1000.5 997.2 999.0 1004.1 1012.7 1017.6 1019.5 1010.0 MAX. QFF PRESSURE IN HPA 1023.4 1023.0 1024.8 1015.2 1012.5 1003.3 1001.1 1004.6 1009.0 1016.6 1021.0 1027.5 1027.5 DAY 16 3 1 16 16 3 30 30 28 20 29 15 MIN. QFF PRESSURE IN HPA 1008.5 1004.7 1006.9 1005.2 1002.2 996.6 993.2 993.9 999.7 1006.1 1011.9 1009.5 993.2 DAY 11 15 7 2 27 5 11 3 2 1 23 30 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1015.3 1014.0 1013.5 1008.8 1005.7 999.0 995.4 996.9 1001.8 1010.3 1015.6 1017.6 1007.8 MAX. QFE PRESSURE IN HPA 1020.0 1021.3 1022.8 1012.8 1010.9 1001.5 998.7 1002.1 1007.4 1014.3 1018.5 1025.7 1025.7 DAY 16 21 1 29 16 3 30 30 28 20 15 15 MIN. QFE PRESSURE IN HPA 1008.2 1002.2 1004.9 1004.1 1000.7 995.7 991.5 991.9 997.7 1004.2 1011.7 1007.6 991.5 DAY 11 15 7 2 27 6 11 3 2 1 1 30 MEAN QNH PRESSURE IN HPA 1015.8 1014.5 1014.0 1009.3 1006.2 999.4 995.9 997.4 1002.3 1010.8 1016.0 1018.1 1008.3 MAX. QNH PRESSURE IN HPA 1020.5 1021.8 1023.3 1013.3 1011.4 1002.0 999.2 1002.6 1007.9 1014.8 1019.0 1026.2 1026.2 DAY 16 21 1 29 16 3 30 30 28 20 15 15 MIN. QNH PRESSURE IN HPA 1008.7 1002.7 1005.4 1004.6 1001.2 996.2 992.0 992.4 998.2 1004.7 1012.2 1008.1 992.0 DAY 11 15 7 2 27 6 11 3 2 1 1 30 MEAN QFF PRESSURE IN HPA 1016.1 1014.8 1014.2 1009.5 1006.5 999.7 996.1 997.6 1002.5 1011.0 1016.3 1018.4 1008.6 MAX. QFF PRESSURE IN HPA 1020.8 1022.1 1023.6 1013.6 1011.6 1002.2 999.4 1002.8 1008.1 1015.1 1019.3 1026.5 1026.5 DAY 16 21 1 29 16 19 30 30 28 20 15 15 MIN. QFF PRESSURE IN HPA 1009.0 1003.0 1005.7 1004.9 1001.4 996.4 992.2 992.6 998.4 1004.9 1012.5 1008.4 992.2 DAY 11 15 7 2 27 6 11 3 2 1 1 30 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1016.0 1014.6 1013.7 1008.7 1005.1 998.2 994.7 996.4 1001.6 1010.6 1016.0 1018.1 1007.8 MAX. QFE PRESSURE IN HPA 1021.2 1022.5 1023.9 1013.2 1010.4 1000.9 997.7 1001.6 1007.3 1014.8 1019.0 1026.2 1026.2 DAY 7 21 1 29 16 2 30 30 28 20 16 15 MIN. QFE PRESSURE IN HPA 1009.0 1003.7 1006.9 1005.2 1000.0 995.4 990.4 991.2 997.4 1004.6 1012.0 1009.7 990.4 DAY 27 15 7 2 27 6 11 3 1 1 23 6 MEAN QNH PRESSURE IN HPA 1016.5 1015.0 1014.2 1009.2 1005.5 998.7 995.2 996.8 1002.1 1011.1 1016.5 1018.6 1008.3 MAX. QNH PRESSURE IN HPA 1021.7 1023.0 1024.4 1013.7 1010.9 1001.4 998.2 1002.1 1007.8 1015.3 1019.5 1026.7 1026.7 DAY 7 21 1 29 16 2 30 30 28 20 16 15 MIN. QNH PRESSURE IN HPA 1009.5 1004.2 1007.4 1005.7 1000.5 995.9 990.9 991.7 997.9 1005.1 1012.5 1010.2 990.9 DAY 27 15 7 2 27 6 11 3 1 1 23 6 MEAN QFF PRESSURE IN HPA 1016.8 1015.3 1014.4 1009.5 1005.8 999.0 995.4 997.1 1002.4 1011.3 1016.7 1018.9 1008.6 MAX. QFF PRESSURE IN HPA 1022.0 1023.3 1024.7 1014.0 1011.1 1001.6 998.4 1002.3 1008.0 1015.6 1019.8 1027.0 1027.0 DAY 7 21 1 29 16 2 30 30 28 20 16 15 MIN. QFF PRESSURE IN HPA 1009.8 1004.5 1007.7 1006.0 1000.7 996.1 991.1 991.9 998.1 1005.3 1012.8 1010.5 991.1 DAY 27 15 7 2 27 6 11 3 1 1 23 6 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1016.8 1015.6 1014.4 1009.8 1005.9 998.9 995.5 997.2 1002.7 1011.6 1016.8 1018.6 1008.6 MAX. QFE PRESSURE IN HPA 1021.8 1023.9 1024.0 1015.1 1012.5 1001.3 998.4 1002.6 1008.4 1015.3 1019.9 1027.4 1027.4 DAY 7 21 1 15 16 3 14 29 28 20 19 15 MIN. QFE PRESSURE IN HPA 1010.2 1006.0 1007.2 1005.2 1000.8 995.9 991.2 992.0 998.3 1002.8 1013.5 1011.9 991.2 DAY 27 15 7 17 26 5 11 3 1 1 1 30 MEAN QNH PRESSURE IN HPA 1017.3 1016.1 1014.9 1010.3 1006.4 999.4 995.9 997.7 1003.2 1012.1 1017.3 1019.1 1009.1 MAX. QNH PRESSURE IN HPA 1022.3 1024.4 1024.5 1015.6 1013.0 1001.8 998.9 1003.1 1008.9 1015.8 1020.4 1027.9 1027.9 DAY 7 21 1 15 16 3 14 29 28 20 19 15 MIN. QNH PRESSURE IN HPA 1010.7 1006.5 1007.7 1005.7 1001.3 996.4 991.7 992.5 998.8 1003.3 1014.0 1012.4 991.7 DAY 27 15 7 17 26 5 11 3 1 1 1 30 MEAN QFF PRESSURE IN HPA 1017.6 1016.4 1015.2 1010.6 1006.6 999.6 996.2 998.0 1003.5 1012.3 1017.5 1019.4 1009.4 MAX. QFF PRESSURE IN HPA 1022.6 1024.7 1024.8 1015.9 1013.2 1002.0 999.1 1003.3 1009.1 1016.1 1020.7 1028.2 1028.2 DAY 7 21 1 15 16 3 14 29 28 20 19 15 MIN. QFF PRESSURE IN HPA 1011.0 1006.8 1008.0 1006.0 1001.5 996.6 991.9 992.7 999.0 1003.5 1014.3 1012.7 991.9 DAY 27 15 7 17 26 5 11 3 1 1 1 30 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1016.6 1015.5 1014.1 1010.0 1005.8 998.8 995.1 997.2 1002.9 1011.4 1016.6 1018.6 1008.6 MAX. QFE PRESSURE IN HPA 1021.3 1023.8 1023.4 1013.9 1011.5 1002.0 998.3 1002.9 1009.3 1015.0 1020.1 1026.7 1026.7 DAY 15 21 1 15 16 2 14 30 4 19 19 15 MIN. QFE PRESSURE IN HPA 1009.7 1005.6 1006.1 1003.5 1000.7 995.5 991.6 992.1 998.2 1002.8 1013.3 1010.9 991.6 DAY 2 15 7 10 26 5 11 3 1 1 2 5 MEAN QNH PRESSURE IN HPA 1017.1 1016.0 1014.6 1010.5 1006.3 999.3 995.6 997.7 1003.4 1011.9 1017.0 1019.1 1009.0 MAX. QNH PRESSURE IN HPA 1021.8 1024.3 1023.9 1014.4 1012.0 1002.5 998.8 1003.4 1009.8 1015.5 1020.6 1027.2 1027.2 DAY 15 21 1 15 16 2 14 30 4 19 19 15 MIN. QNH PRESSURE IN HPA 1010.2 1006.1 1006.6 1004.0 1001.2 996.0 992.1 992.6 998.7 1003.3 1013.8 1011.4 992.1 DAY 2 15 7 10 26 5 11 3 1 1 2 5 MEAN QFF PRESSURE IN HPA 1017.4 1016.3 1014.9 1010.7 1006.5 999.5 995.8 998.0 1003.6 1012.1 1017.3 1019.4 1009.3 MAX. QFF PRESSURE IN HPA 1022.1 1024.6 1024.2 1014.7 1012.2 1002.7 999.0 1003.6 1010.0 1015.7 1020.9 1027.5 1027.5 DAY 15 21 1 15 16 2 14 30 4 19 19 15 MIN. QFF PRESSURE IN HPA 1010.5 1006.4 1006.9 1004.3 1001.4 996.2 992.3 992.8 998.9 1003.5 1014.1 1011.7 992.3 DAY 2 15 7 10 26 5 11 3 1 1 2 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 12.1 15.7 19.5 24.8 30.4 35.1 36.0 35.5 32.3 25.1 20.7 13.6 25.1 MINIMUN AIR TEMPERATURE (C) 7.5 9.5 14.0 17.7 22.2 25.1 26.7 25.8 22.8 15.6 13.9 8.3 17.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 5 24 30 31 30 26 0 0 0 146 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 1 1 TEMPERATURE RECORDS LOWEST(C) 3.0 5.0 7.0 12.0 16.0 22.0 23.0 20.0 19.0 10.0 7.0 0.0 0.0 DAY 11 4 10 12 6 7 17 25 21 29 27 6 MAXIMUM AIR TEMPERATURE (C) 17.4 22.8 25.9 32.6 38.7 44.9 45.3 45.4 43.0 36.4 29.2 19.9 33.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 4 25 31 30 31 31 30 31 15 0 228 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 20.0 27.0 31.0 37.0 46.0 50.0 49.0 50.0 46.0 42.0 34.0 26.0 50.0 DAY 13 17 31 22 19 27 11 3 2 3 10 2 DIF. BETWEEN (MAX.-MIN.) (C) 9.9 13.3 11.9 14.9 16.5 19.8 18.6 19.6 20.2 20.8 15.3 11.6 16.1 MEAN DAILY TEMP. (MDT) (C) 12.5 16.2 19.9 25.1 30.5 35.0 36.0 35.6 32.9 26.0 21.5 14.1 25.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 8.5 127.5 293.0 421.0 465.5 453.0 357.0 156.0 31.5 0.0 2313.0 HEATING DEG. DAYS(BASE 18 0C) 172.0 56.5 6.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.5 125.0 362.0 DEWPOINT (MEAN C) 9.2 9.1 11.5 10.6 12.2 15.1 19.8 16.8 13.4 11.6 12.9 9.8 12.7 MIXING RATIO (G/KG) 7.27 7.41 8.67 8.39 9.16 11.18 15.22 13.21 9.89 8.76 9.64 7.70 9.71 VAPOUR PRESSURE (HPA) 11.78 11.95 13.89 13.44 14.60 17.62 23.78 20.67 15.69 14.02 15.46 12.43 15.44 SATURATION DEF. (HPA) 2.64 6.57 9.50 19.27 31.19 42.40 38.69 40.46 35.97 20.20 10.10 3.69 21.72 RELATIVE HUMIDITY (MEAN %) 84 69 63 45 37 34 41 37 35 47 63 80 53 RELATIVE HUMIDITY (MAX. %) 98 91 84 72 61 57 60 57 57 75 82 94 74 RELATIVE HUMIDITY (MIN. %) 63 43 41 24 18 16 28 22 18 24 45 57 33 RELATIVE HUMIDITY (MEAN% 03UTC) 97 86 78 68 54 52 55 51 52 69 78 91 69 RELATIVE HUMIDITY (MEAN% 09UTC) 71 51 51 28 22 21 32 28 21 27 51 66 39 RELATIVE HUMIDITY (MEAN% 15UTC) 78 57 51 31 24 21 33 29 27 39 60 76 44 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 15.0 0.1 9.1 0.6 4.0 0.0 0.0 0.0 0.0 0.0 0.2 91.9 120.9 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 0 4 4 DAYS WITH PRECIPITATION >= 5 1 0 1 0 0 0 0 0 0 0 0 6 8 DAYS WITH PRECIPITATION >= 1 6 0 3 0 2 0 0 0 0 0 0 8 19 DAYS WITH PRECIPITATION 7 2 9 7 5 0 0 0 0 0 6 11 47 GREATEST DAILY PRECIPITATION 5.0 0.1 7.0 0.5 2.2 0.0 0.0 0.0 0.0 0.0 0.1 29.0 29.0 DAY 3 1 25 20 3 ** ** ** ** ** 24 12 DAY WITH THUNDER STORM 2 1 5 4 3 0 1 0 0 0 2 3 21 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 3 5 2 3 3 3 4 9 4 1 0 0 37 WIND DIRECTION (PREVAILING) 315 315 180 360 315 270 270 270 270 270 315 270 270 PREVAILING WIND SPEED(KNOTS) 4.1 6.6 10.6 9.5 8.4 7.9 8.8 10.2 7.0 4.3 8.5 5.8 6.9 PREVAILING WIND PERCENT 29.1 26.3 27.4 20.0 25.8 35.0 45.2 41.1 47.1 44.8 22.9 23.0 26.1 CALMS PERCENT OF WIND 11.7 7.1 3.6 7.9 6.5 8.3 4.0 7.3 7.1 4.8 10.0 13.7 7.7 NO. OF WIND OBSERVATION 247 224 248 240 248 240 248 248 240 248 240 248 2919 VECTOR WIND DIRECTION (MEAN) 329 318 218 267 320 291 291 298 296 265 309 307 297 VECTOR WIND MAGNITUDE(KNOTS) 2.0 3.1 1.3 0.6 3.3 5.4 6.8 7.9 6.2 2.6 1.9 1.1 3.3 WIND STEADINESES (MEAN %) 40.8 44.9 16.9 7.5 45.2 73.0 85.0 89.8 89.9 63.4 29.7 18.6 47.8 WIND SPEED (MEAN KNOTS) 4.9 6.9 7.7 8.0 7.3 7.4 8.0 8.8 6.9 4.1 6.4 5.9 6.9 FASTEST WIND DIRECTION 340 340 160 110 310 310 310 290 310 310 180 90 160 FASTEST WIND SPEED (KNOTS) 20 25 35 32 25 20 25 25 25 20 20 25 35 DAY 9 18 16 28 6 11 12 31 3 31 9 7 DAYS WITH SKY CLEAR (0-2)/8 15 19 9 15 19 30 31 29 30 28 16 13 254 DAYS WITH P.CLOUDY (3-6)/8 12 8 10 9 9 0 0 2 0 3 11 12 76 DAYS WITH CLOUDY (7-8)/8 4 1 12 6 3 0 0 0 0 0 3 6 35 DAYS WITH VISIBILITY =< 2 KM 4 7 0 0 2 1 2 2 1 1 1 2 23 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1020.5 1016.8 1012.0 1010.9 1006.4 999.0 996.8 997.3 1003.1 1011.1 1015.2 1017.4 1008.9 MAX. QFE PRESSURE IN HPA 1029.5 1023.8 1020.6 1016.6 1014.5 1004.1 1002.1 1002.0 1011.2 1017.0 1023.8 1025.3 1029.5 DAY-HOUR 9- 6 24- 6 29- 6 13- 6 6- 6 1- 6 10- 6 23- 6 29- 6 18- 6 26- 6 9- 6 MIN. QFE PRESSURE IN HPA 1012.9 1010.0 1001.0 1004.8 1000.2 992.8 992.3 993.1 994.6 1005.1 1008.1 1008.1 992.3 DAY-HOUR 26-12 22-18 13- 6 27-12 24-15 29- 0 17-15 6-15 1- 0 1- 0 9-12 29- 0 MEAN QNH PRESSURE IN HPA 1021.0 1017.3 1012.5 1011.4 1006.9 999.5 997.2 997.7 1003.6 1011.6 1015.7 1017.9 1009.3 MAX. QNH PRESSURE IN HPA 1030.0 1024.3 1021.1 1017.1 1015.0 1004.6 1002.6 1002.5 1011.7 1017.5 1024.3 1025.8 1030.0 DAY-HOUR 9- 6 24- 6 29- 6 13- 6 6- 6 1- 6 10- 6 23- 6 29- 6 18- 6 26- 6 9- 6 MIN. QNH PRESSURE IN HPA 1013.4 1010.5 1001.5 1005.3 1000.7 993.3 992.8 993.6 995.1 1005.6 1008.6 1008.6 992.8 DAY-HOUR 26-12 22-18 13- 6 27-12 24-15 29- 0 17-15 6-15 1- 0 1- 0 9-12 29- 0 MEAN QFF PRESSURE IN HPA 1021.3 1017.5 1012.8 1011.6 1007.1 999.7 997.5 998.0 1003.8 1011.8 1016.0 1018.1 1009.6 MAX. QFF PRESSURE IN HPA 1030.3 1024.6 1021.4 1017.4 1015.3 1004.8 1002.8 1002.7 1011.9 1017.8 1024.6 1026.1 1030.3 DAY-HOUR 9- 6 24- 6 29- 6 13- 6 6- 6 1- 6 10- 6 23- 6 29- 6 18- 6 26- 6 9- 6 MIN. QFF PRESSURE IN HPA 1013.7 1010.8 1001.8 1005.5 1000.9 993.5 993.0 993.8 995.3 1005.8 1008.9 1008.9 993.0 DAY-HOUR 26-12 22-18 13- 6 27-12 24-15 29- 0 17-15 6-15 1- 0 1- 0 9-12 29- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1020.4 1016.5 1011.6 1010.5 1005.8 998.5 996.1 996.8 1002.4 1010.5 1015.0 1017.1 1008.4 MAX. QFE PRESSURE IN HPA 1027.3 1022.3 1017.7 1015.8 1013.7 1002.4 999.5 1000.3 1008.1 1015.4 1022.3 1021.7 1027.3 DAY 9 24 29 13 6 6 10 23 29 23 26 9 MIN. QFE PRESSURE IN HPA 1014.4 1012.2 1004.0 1005.1 1000.8 992.8 993.0 994.4 994.6 1005.1 1009.7 1008.1 992.8 DAY 26 5 12 28 24 29 18 8 1 1 24 29 MEAN QNH PRESSURE IN HPA 1020.9 1017.0 1012.1 1011.0 1006.3 999.0 996.6 997.3 1002.9 1011.0 1015.5 1017.6 1008.9 MAX. QNH PRESSURE IN HPA 1027.8 1022.8 1018.2 1016.3 1014.2 1002.9 1000.0 1000.8 1008.6 1015.9 1022.8 1022.2 1027.8 DAY 9 24 29 13 6 6 10 23 29 23 26 9 MIN. QNH PRESSURE IN HPA 1014.9 1012.7 1004.5 1005.6 1001.3 993.3 993.5 994.9 995.1 1005.6 1010.2 1008.6 993.3 DAY 26 5 12 28 24 29 18 8 1 1 24 29 MEAN QFF PRESSURE IN HPA 1021.2 1017.3 1012.3 1011.2 1006.6 999.2 996.8 997.5 1003.1 1011.3 1015.7 1017.9 1009.2 MAX. QFF PRESSURE IN HPA 1028.1 1023.1 1018.5 1016.6 1014.5 1003.1 1000.2 1001.0 1008.8 1016.2 1023.1 1022.5 1028.1 DAY 9 24 29 13 6 6 10 23 29 23 26 9 MIN. QFF PRESSURE IN HPA 1015.2 1013.0 1004.8 1005.8 1001.5 993.5 993.7 995.1 995.3 1005.8 1010.5 1008.9 993.5 DAY 26 5 12 28 24 29 18 8 1 1 24 29 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1020.5 1016.7 1012.3 1011.2 1006.6 999.2 996.9 997.6 1003.3 1011.2 1015.6 1017.3 1009.0 MAX. QFE PRESSURE IN HPA 1027.3 1022.7 1019.0 1016.4 1013.9 1002.9 1001.1 1001.3 1009.7 1015.6 1023.1 1023.5 1027.3 DAY 9 24 29 13 6 1 10 23 29 23 26 9 MIN. QFE PRESSURE IN HPA 1014.4 1012.2 1004.9 1005.2 1001.5 993.7 993.5 995.5 995.3 1005.6 1009.3 1008.3 993.5 DAY 26 6 4 28 24 29 17 8 1 1 9 29 MEAN QNH PRESSURE IN HPA 1021.0 1017.2 1012.8 1011.7 1007.1 999.7 997.3 998.1 1003.8 1011.7 1016.1 1017.8 1009.5 MAX. QNH PRESSURE IN HPA 1027.8 1023.2 1019.5 1016.9 1014.4 1003.4 1001.6 1001.8 1010.2 1016.1 1023.6 1024.0 1027.8 DAY 9 24 29 13 6 1 10 23 29 23 26 9 MIN. QNH PRESSURE IN HPA 1014.9 1012.7 1005.4 1005.7 1002.0 994.2 994.0 996.0 995.8 1006.1 1009.8 1008.8 994.0 DAY 26 6 4 28 24 29 17 8 1 1 9 29 MEAN QFF PRESSURE IN HPA 1021.3 1017.5 1013.0 1012.0 1007.4 1000.0 997.6 998.3 1004.0 1012.0 1016.3 1018.1 1009.8 MAX. QFF PRESSURE IN HPA 1028.1 1023.5 1019.8 1017.2 1014.7 1003.6 1001.8 1002.0 1010.4 1016.4 1023.9 1024.3 1028.1 DAY 9 24 29 13 6 1 10 23 29 23 26 9 MIN. QFF PRESSURE IN HPA 1015.2 1013.0 1005.7 1005.9 1002.2 994.4 994.2 996.2 996.0 1006.3 1010.1 1009.1 994.2 DAY 26 6 4 28 24 29 17 8 1 1 9 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1955 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 1018.2 1013.2 1012.5 1007.6 1000.1 997.7 998.6 1004.5 1012.6 1016.9 1019.0 1010.2 MAX. QFE PRESSURE IN HPA 1029.5 1023.8 1020.6 1016.6 1014.5 1004.1 1002.1 1002.0 1011.2 1017.0 1023.8 1025.3 1029.5 DAY 9 24 29 13 6 1 10 23 29 18 26 9 MIN. QFE PRESSURE IN HPA 1015.5 1013.6 1001.0 1007.3 1002.2 994.7 994.5 996.3 995.9 1007.1 1010.3 1010.6 994.5 DAY 26 5 13 8 24 29 17 6 1 1 9 29 MEAN QNH PRESSURE IN HPA 1022.6 1018.7 1013.7 1013.0 1008.1 1000.6 998.2 999.1 1005.0 1013.1 1017.4 1019.5 1010.7 MAX. QNH PRESSURE IN HPA 1030.0 1024.3 1021.1 1017.1 1015.0 1004.6 1002.6 1002.5 1011.7 1017.5 1024.3 1025.8 1030.0 DAY 9 24 29 13 6 1 10 23 29 18 26 9 MIN. QNH PRESSURE IN HPA 1016.0 1014.1 1001.5 1007.8 1002.7 995.2 995.0 996.8 996.4 1007.6 1010.8 1011.1 995.0 DAY 26 5 13 8 24 29 17 6 1 1 9 29 MEAN QFF PRESSURE IN HPA 1022.9 1018.9 1014.0 1013.2 1008.3 1000.8 998.4 999.3 1005.3 1013.4 1017.7 1019.8 1011.0 MAX. QFF PRESSURE IN HPA 1030.3 1024.6 1021.4 1017.4 1015.3 1004.8 1002.8 1002.7 1011.9 1017.8 1024.6 1026.1 1030.3 DAY 9 24 29 13 6 1 10 23 29 18 26 9 MIN. QFF PRESSURE IN HPA 1016.3 1014.4 1001.8 1008.1 1002.9 995.4 995.2 997.0 996.6 1007.9 1011.1 1011.4 995.2 DAY 26 5 13 8 24 29 17 6 1 1 9 29 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1021.0 1017.7 1012.8 1011.8 1007.2 999.9 997.5 998.1 1003.8 1011.6 1015.5 1017.7 1009.5 MAX. QFE PRESSURE IN HPA 1027.7 1023.2 1020.1 1016.1 1014.2 1003.5 1001.9 1001.3 1010.3 1016.3 1022.4 1023.9 1027.7 DAY 9 24 29 13 5 6 10 22 29 18 25 9 MIN. QFE PRESSURE IN HPA 1014.5 1013.8 1005.4 1007.1 1001.8 994.8 994.4 995.4 995.5 1006.4 1009.6 1010.1 994.4 DAY 26 6 12 8 24 29 17 6 1 1 9 29 MEAN QNH PRESSURE IN HPA 1021.5 1018.2 1013.3 1012.3 1007.7 1000.4 998.0 998.5 1004.3 1012.1 1016.0 1018.2 1010.0 MAX. QNH PRESSURE IN HPA 1028.2 1023.7 1020.6 1016.6 1014.7 1004.0 1002.4 1001.8 1010.8 1016.8 1022.9 1024.4 1028.2 DAY 9 24 29 13 5 6 10 22 29 18 25 9 MIN. QNH PRESSURE IN HPA 1015.0 1014.3 1005.9 1007.6 1002.3 995.3 994.9 995.9 996.0 1006.9 1010.1 1010.6 994.9 DAY 26 6 12 8 24 29 17 6 1 1 9 29 MEAN QFF PRESSURE IN HPA 1021.8 1018.4 1013.6 1012.6 1008.0 1000.6 998.2 998.8 1004.6 1012.3 1016.3 1018.5 1010.3 MAX. QFF PRESSURE IN HPA 1028.5 1024.0 1020.9 1016.9 1015.0 1004.2 1002.6 1002.0 1011.0 1017.1 1023.2 1024.7 1028.5 DAY 9 24 29 13 5 6 10 22 29 18 25 9 MIN. QFF PRESSURE IN HPA 1015.3 1014.6 1006.2 1007.8 1002.5 995.5 995.1 996.1 996.2 1007.1 1010.4 1010.9 995.1 DAY 26 6 12 8 24 29 17 6 1 1 9 29 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1019.4 1015.8 1011.1 1010.1 1005.8 998.5 996.5 996.7 1002.2 1010.1 1014.1 1016.3 1008.1 MAX. QFE PRESSURE IN HPA 1026.1 1020.9 1018.5 1014.6 1012.9 1002.6 1000.4 1000.1 1008.6 1014.3 1021.5 1021.4 1026.1 DAY 9 24 29 12 5 5 10 22 29 18 25 9 MIN. QFE PRESSURE IN HPA 1012.9 1011.8 1004.2 1004.8 1000.6 993.6 993.3 993.9 995.0 1005.2 1008.1 1009.0 993.3 DAY 26 5 12 27 24 29 16 6 1 1 9 29 MEAN QNH PRESSURE IN HPA 1019.9 1016.3 1011.6 1010.6 1006.3 999.0 997.0 997.1 1002.7 1010.5 1014.6 1016.8 1008.5 MAX. QNH PRESSURE IN HPA 1026.6 1021.4 1019.0 1015.1 1013.4 1003.1 1000.9 1000.6 1009.1 1014.8 1022.0 1021.9 1026.6 DAY 9 24 29 12 5 5 10 22 29 18 25 9 MIN. QNH PRESSURE IN HPA 1013.4 1012.3 1004.7 1005.3 1001.1 994.1 993.8 994.4 995.5 1005.7 1008.6 1009.5 993.8 DAY 26 5 12 27 24 29 16 6 1 1 9 29 MEAN QFF PRESSURE IN HPA 1020.2 1016.6 1011.9 1010.8 1006.6 999.3 997.2 997.4 1003.0 1010.8 1014.8 1017.1 1008.8 MAX. QFF PRESSURE IN HPA 1026.9 1021.7 1019.3 1015.4 1013.7 1003.3 1001.1 1000.8 1009.3 1015.1 1022.3 1022.2 1026.9 DAY 9 24 29 12 5 5 10 22 29 22 25 9 MIN. QFF PRESSURE IN HPA 1013.7 1012.6 1005.0 1005.5 1001.3 994.3 994.0 994.6 995.7 1005.9 1008.9 1009.8 994.0 DAY 26 5 12 27 24 29 16 6 1 1 9 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1019.9 1015.9 1011.2 1009.6 1005.3 998.0 995.9 996.1 1002.2 1010.3 1014.5 1016.7 1008.0 MAX. QFE PRESSURE IN HPA 1026.5 1020.7 1018.6 1014.3 1012.6 1001.6 1000.0 999.2 1008.2 1014.7 1022.3 1022.5 1026.5 DAY 9 24 29 12 5 5 10 22 29 18 25 9 MIN. QFE PRESSURE IN HPA 1013.1 1010.7 1004.5 1005.0 1000.2 993.3 992.3 993.1 995.0 1005.6 1009.3 1009.3 992.3 DAY 26 22 12 30 24 29 17 6 1 5 8 28 MEAN QNH PRESSURE IN HPA 1020.4 1016.4 1011.7 1010.1 1005.8 998.5 996.4 996.5 1002.7 1010.8 1015.0 1017.2 1008.5 MAX. QNH PRESSURE IN HPA 1027.0 1021.2 1019.1 1014.8 1013.1 1002.1 1000.5 999.7 1008.7 1015.2 1022.8 1023.0 1027.0 DAY 9 24 29 12 5 5 10 22 29 18 25 9 MIN. QNH PRESSURE IN HPA 1013.6 1011.2 1005.0 1005.5 1000.7 993.8 992.8 993.6 995.5 1006.1 1009.8 1009.8 992.8 DAY 26 22 12 30 24 29 17 6 1 5 8 28 MEAN QFF PRESSURE IN HPA 1020.7 1016.7 1012.0 1010.4 1006.0 998.7 996.6 996.8 1002.9 1011.1 1015.3 1017.5 1008.7 MAX. QFF PRESSURE IN HPA 1027.3 1021.5 1019.4 1015.1 1013.4 1002.3 1000.7 999.9 1009.0 1015.5 1023.1 1023.3 1027.3 DAY 9 24 29 12 5 5 10 22 29 22 25 9 MIN. QFF PRESSURE IN HPA 1013.9 1011.5 1005.3 1005.7 1000.9 994.0 993.0 993.8 995.7 1006.3 1010.1 1010.1 993.0 DAY 26 22 12 30 24 29 17 6 1 5 9 28 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1020.5 1016.8 1012.1 1010.8 1006.4 999.0 996.9 997.2 1003.3 1011.2 1015.4 1017.5 1008.9 MAX. QFE PRESSURE IN HPA 1027.2 1021.7 1019.4 1015.7 1014.2 1002.7 1000.8 1000.5 1008.6 1016.2 1022.9 1022.4 1027.2 DAY 9 24 29 12 5 5 10 22 29 22 25 9 MIN. QFE PRESSURE IN HPA 1014.4 1010.0 1004.8 1004.9 1001.2 993.9 992.9 995.1 996.1 1005.4 1009.1 1009.0 992.9 DAY 26 22 11 30 24 28 17 6 1 5 8 28 MEAN QNH PRESSURE IN HPA 1021.0 1017.3 1012.6 1011.3 1006.9 999.5 997.4 997.7 1003.8 1011.7 1015.9 1018.0 1009.4 MAX. QNH PRESSURE IN HPA 1027.7 1022.2 1019.9 1016.2 1014.7 1003.2 1001.3 1001.0 1009.1 1016.7 1023.4 1022.9 1027.7 DAY 9 24 29 12 5 5 10 22 29 22 25 9 MIN. QNH PRESSURE IN HPA 1014.9 1010.5 1005.3 1005.4 1001.7 994.4 993.4 995.6 996.6 1005.9 1009.6 1009.5 993.4 DAY 26 22 11 30 24 28 17 6 1 5 8 28 MEAN QFF PRESSURE IN HPA 1021.3 1017.6 1012.9 1011.5 1007.2 999.7 997.6 998.0 1004.1 1012.0 1016.1 1018.3 1009.7 MAX. QFF PRESSURE IN HPA 1028.0 1022.5 1020.2 1016.5 1015.0 1003.4 1001.5 1001.2 1009.4 1017.0 1023.7 1023.2 1028.0 DAY 9 24 29 12 5 5 10 22 29 22 25 9 MIN. QFF PRESSURE IN HPA 1015.2 1010.8 1005.6 1005.6 1001.9 994.6 993.6 995.8 996.8 1006.1 1009.9 1009.8 993.6 DAY 26 22 11 30 24 28 17 6 1 5 8 28 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1020.3 1016.7 1012.1 1010.7 1006.5 998.7 996.8 997.3 1003.1 1011.1 1015.2 1017.2 1008.8 MAX. QFE PRESSURE IN HPA 1027.0 1022.4 1018.9 1015.8 1014.3 1002.6 999.6 1000.1 1008.0 1016.0 1022.5 1022.4 1027.0 DAY 8 23 28 12 5 6 10 22 29 22 25 9 MIN. QFE PRESSURE IN HPA 1014.9 1010.6 1004.1 1004.9 1001.7 992.9 993.9 995.3 996.4 1006.4 1008.9 1008.4 992.9 DAY 25 22 11 30 23 28 17 6 1 4 8 28 MEAN QNH PRESSURE IN HPA 1020.8 1017.2 1012.6 1011.2 1007.0 999.2 997.3 997.8 1003.6 1011.6 1015.7 1017.7 1009.3 MAX. QNH PRESSURE IN HPA 1027.5 1022.9 1019.4 1016.3 1014.8 1003.1 1000.1 1000.6 1008.5 1016.5 1023.0 1022.9 1027.5 DAY 8 23 28 12 5 6 10 22 29 22 25 9 MIN. QNH PRESSURE IN HPA 1015.4 1011.1 1004.6 1005.4 1002.2 993.4 994.4 995.8 996.9 1006.9 1009.4 1008.9 993.4 DAY 25 22 11 30 23 28 17 6 1 4 8 28 MEAN QFF PRESSURE IN HPA 1021.1 1017.5 1012.9 1011.4 1007.2 999.5 997.5 998.0 1003.9 1011.9 1016.0 1018.0 1009.6 MAX. QFF PRESSURE IN HPA 1027.8 1023.2 1019.7 1016.6 1015.1 1003.3 1000.3 1000.8 1008.7 1016.8 1023.3 1023.2 1027.8 DAY 8 23 28 12 5 6 10 22 29 22 25 9 MIN. QFF PRESSURE IN HPA 1015.7 1011.4 1004.9 1005.6 1002.4 993.6 994.6 996.0 997.1 1007.1 1009.7 1009.2 993.6 DAY 26 22 11 30 23 28 17 6 1 4 8 28 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 11.9 16.0 18.3 23.7 28.8 34.4 35.8 35.8 31.6 25.2 18.0 12.2 24.3 MINIMUN AIR TEMPERATURE (C) 6.4 10.2 11.6 17.0 20.5 25.5 27.8 26.4 22.6 16.2 10.2 8.1 16.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 4 15 29 31 31 19 2 0 0 131 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) 2.0 1.0 5.0 7.0 16.0 20.0 24.0 23.0 18.0 9.0 6.0 1.0 1.0 DAY 19 2 25 1 1 1 20 29 20 31 13 14 MAXIMUM AIR TEMPERATURE (C) 18.4 23.0 25.6 31.4 37.5 43.1 44.7 45.7 42.0 35.8 27.2 17.4 32.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 2 22 31 30 31 31 30 31 5 0 213 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 23.0 28.0 30.0 37.0 44.0 48.0 48.0 49.0 47.0 41.0 30.0 27.0 49.0 DAY 28 20 11 26 19 17 6 13 2 8 1 1 DIF. BETWEEN (MAX.-MIN.) (C) 12.0 12.8 14.0 14.4 17.0 17.6 16.9 19.3 19.4 19.6 17.0 9.3 15.7 MEAN DAILY TEMP. (MDT) (C) 12.4 16.6 18.6 24.2 29.0 34.3 36.2 36.0 32.3 26.0 18.7 12.7 24.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 2.0 120.5 248.0 399.5 472.5 466.5 338.5 157.0 2.0 1.0 2207.5 HEATING DEG. DAYS(BASE 18 0C) 174.0 57.0 16.0 8.5 0.0 0.0 0.0 0.0 0.0 0.0 17.0 170.0 442.5 DEWPOINT (MEAN C) 7.7 7.5 7.9 10.0 7.1 9.6 15.6 14.6 14.6 15.7 9.2 8.8 10.7 MIXING RATIO (G/KG) 6.60 6.91 6.98 8.11 6.63 7.87 12.04 11.23 11.11 11.74 7.64 7.34 8.68 VAPOUR PRESSURE (HPA) 10.67 11.12 11.22 12.97 10.60 12.48 18.86 17.66 17.57 18.70 12.32 11.86 13.84 SATURATION DEF. (HPA) 3.75 7.79 10.61 17.90 31.14 44.33 42.35 44.24 32.02 15.98 9.54 3.04 21.89 RELATIVE HUMIDITY (MEAN %) 78 61 55 47 30 25 35 34 40 58 60 82 50 RELATIVE HUMIDITY (MAX. %) 95 83 79 72 54 42 55 59 63 78 81 95 71 RELATIVE HUMIDITY (MIN. %) 55 37 35 25 13 12 17 14 20 40 39 63 31 RELATIVE HUMIDITY (MEAN% 03UTC) 90 81 74 69 43 38 50 53 56 72 77 91 66 RELATIVE HUMIDITY (MEAN% 09UTC) 62 45 42 30 15 14 22 17 24 46 43 70 36 RELATIVE HUMIDITY (MEAN% 15UTC) 69 53 41 33 20 19 25 23 30 52 53 79 41 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 32.0 22.4 4.5 24.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 58.0 141.2 DAYS WITH PRECIPITATION >=10 1 1 0 1 0 0 0 0 0 0 0 1 4 DAYS WITH PRECIPITATION >= 5 2 1 0 1 0 0 0 0 0 0 0 7 11 DAYS WITH PRECIPITATION >= 1 3 5 2 4 0 0 0 0 0 0 0 9 23 DAYS WITH PRECIPITATION 3 7 6 6 0 0 0 0 0 0 0 11 33 GREATEST DAILY PRECIPITATION 22.0 16.2 3.0 17.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13.0 22.0 DAY 15 23 8 5 ** ** ** ** ** ** ** 21 DAY WITH THUNDER STORM 0 1 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 3 2 2 7 16 22 13 7 9 2 4 1 88 WIND DIRECTION (PREVAILING) 270 315 315 315 315 315 315 315 315 315 270 315 315 PREVAILING WIND SPEED(KNOTS) 7.9 9.3 9.2 8.1 13.3 14.1 11.1 9.2 9.3 6.4 4.7 6.5 10.1 PREVAILING WIND PERCENT 23.4 31.0 33.9 30.0 62.5 67.1 35.9 41.1 42.5 36.7 31.3 33.9 37.8 CALMS PERCENT OF WIND 12.9 9.1 16.5 8.8 7.7 5.4 4.8 16.9 13.3 17.7 11.3 20.6 12.1 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 296 232 324 285 312 307 281 302 300 295 278 309 301 VECTOR WIND MAGNITUDE(KNOTS) 1.9 0.8 2.5 1.5 9.7 11.0 5.1 4.3 4.7 3.6 2.5 1.8 4.0 WIND STEADINESES (MEAN %) 26.8 10.3 40.3 20.3 89.8 94.8 67.1 69.4 73.4 78.3 43.9 38.3 55.6 WIND SPEED (MEAN KNOTS) 7.1 7.8 6.2 7.4 10.8 11.6 7.6 6.2 6.4 4.6 5.7 4.7 7.2 FASTEST WIND DIRECTION 160 170 130 150 320 310 310 330 330 340 330 90 160 FASTEST WIND SPEED (KNOTS) 35 28 20 20 28 30 26 20 20 18 20 18 35 DAY 13 7 8 12 17 4 1 12 12 7 11 6 DAYS WITH SKY CLEAR (0-2)/8 20 11 14 13 31 28 28 30 27 31 20 10 263 DAYS WITH P.CLOUDY (3-6)/8 8 12 11 10 0 1 3 1 3 0 10 6 65 DAYS WITH CLOUDY (7-8)/8 3 6 6 7 0 0 0 0 0 0 0 15 37 DAYS WITH VISIBILITY =< 2 KM 3 4 0 0 11 12 5 4 5 2 2 5 53 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1017.3 1015.6 1011.6 1010.1 1006.3 999.6 995.8 998.5 1003.5 1011.8 1017.7 1019.9 1009.0 MAX. QFE PRESSURE IN HPA 1025.8 1023.5 1019.3 1024.1 1013.1 1009.1 999.5 1006.1 1009.4 1018.8 1024.4 1029.3 1029.3 DAY-HOUR 20- 6 2- 6 4- 6 1- 9 10- 6 16-18 25- 6 31- 6 30- 6 26- 6 20- 6 13- 6 MIN. QFE PRESSURE IN HPA 1004.7 1003.1 1002.6 999.0 1000.0 994.5 991.2 991.8 996.7 1005.6 1009.3 1011.3 991.2 DAY-HOUR 13-12 29- 0 29- 0 29-12 25-15 20-12 22-15 4-15 3-15 9-12 8-12 21-12 MEAN QNH PRESSURE IN HPA 1017.8 1016.1 1012.1 1010.6 1006.8 1000.1 996.3 998.9 1004.0 1012.3 1018.2 1020.4 1009.4 MAX. QNH PRESSURE IN HPA 1026.3 1024.0 1019.8 1024.6 1013.6 1009.6 1000.0 1006.6 1009.9 1019.3 1024.9 1029.8 1029.8 DAY-HOUR 20- 6 2- 6 4- 6 1- 9 10- 6 16-18 25- 6 31- 6 30- 6 26- 6 20- 6 13- 6 MIN. QNH PRESSURE IN HPA 1005.2 1003.6 1003.1 999.5 1000.5 995.0 991.7 992.3 997.2 1006.1 1009.8 1011.8 991.7 DAY-HOUR 13-12 29- 0 29- 0 29-12 25-15 20-12 22-15 4-15 3-15 9-12 8-12 21-12 MEAN QFF PRESSURE IN HPA 1018.0 1016.4 1012.4 1010.9 1007.1 1000.3 996.5 999.2 1004.2 1012.6 1018.4 1020.7 1009.7 MAX. QFF PRESSURE IN HPA 1026.6 1024.3 1020.1 1024.9 1013.9 1009.8 1000.2 1006.8 1010.2 1019.6 1025.2 1030.1 1030.1 DAY-HOUR 20- 6 2- 6 4- 6 1- 9 10- 6 16-18 25- 6 31- 6 30- 6 26- 6 20- 6 13- 6 MIN. QFF PRESSURE IN HPA 1005.5 1003.9 1003.4 999.7 1000.7 995.2 991.9 992.5 997.4 1006.3 1010.1 1012.1 991.9 DAY-HOUR 13-12 29- 0 29- 0 29-12 25-15 20-12 22-15 4-15 3-15 9-12 8-12 21-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1017.1 1015.0 1011.1 1009.6 1006.0 998.9 995.4 998.0 1003.0 1011.3 1017.3 1019.6 1008.5 MAX. QFE PRESSURE IN HPA 1023.6 1022.1 1016.1 1022.7 1011.4 1003.6 998.0 1004.3 1007.6 1016.5 1022.2 1028.1 1028.1 DAY 18 2 4 2 10 2 30 31 30 27 20 13 MIN. QFE PRESSURE IN HPA 1008.0 1003.1 1002.6 1001.1 1000.1 995.3 992.0 993.7 997.5 1006.2 1009.8 1012.6 992.0 DAY 15 29 29 13 26 20 16 5 4 9 8 9 MEAN QNH PRESSURE IN HPA 1017.5 1015.5 1011.6 1010.1 1006.4 999.4 995.9 998.4 1003.5 1011.8 1017.8 1020.1 1009.0 MAX. QNH PRESSURE IN HPA 1024.1 1022.6 1016.6 1023.2 1011.9 1004.1 998.5 1004.8 1008.1 1017.0 1022.7 1028.6 1028.6 DAY 18 2 4 2 10 2 30 31 30 27 20 13 MIN. QNH PRESSURE IN HPA 1008.5 1003.6 1003.1 1001.6 1000.6 995.8 992.5 994.2 998.0 1006.7 1010.3 1013.1 992.5 DAY 15 29 29 13 26 20 16 5 4 9 8 9 MEAN QFF PRESSURE IN HPA 1017.8 1015.8 1011.9 1010.4 1006.7 999.6 996.1 998.7 1003.7 1012.0 1018.1 1020.4 1009.3 MAX. QFF PRESSURE IN HPA 1024.2 1022.9 1016.9 1023.5 1012.1 1004.3 998.7 1005.0 1008.3 1017.3 1023.0 1028.9 1028.9 DAY 19 2 4 2 10 2 30 31 30 27 20 13 MIN. QFF PRESSURE IN HPA 1008.8 1003.9 1003.4 1001.8 1000.8 996.0 992.7 994.4 998.2 1006.9 1010.6 1013.4 992.7 DAY 15 29 29 13 26 20 16 5 4 9 8 9 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1017.1 1015.7 1011.5 1010.6 1006.6 999.8 996.2 998.7 1003.6 1011.9 1017.8 1019.8 1009.1 MAX. QFE PRESSURE IN HPA 1023.9 1022.1 1016.9 1022.7 1011.9 1004.7 999.3 1005.2 1008.1 1017.6 1023.3 1028.1 1028.1 DAY 18 2 4 2 10 2 25 31 29 26 20 13 MIN. QFE PRESSURE IN HPA 1008.2 1004.6 1003.8 1001.8 1001.1 995.6 993.4 994.2 999.1 1006.8 1009.8 1012.4 993.4 DAY 13 29 29 29 26 20 22 4 4 9 8 8 MEAN QNH PRESSURE IN HPA 1017.6 1016.2 1012.0 1011.0 1007.0 1000.3 996.7 999.2 1004.1 1012.4 1018.3 1020.3 1009.6 MAX. QNH PRESSURE IN HPA 1024.4 1022.6 1017.4 1023.2 1012.4 1005.2 999.8 1005.7 1008.6 1018.1 1023.8 1028.6 1028.6 DAY 18 2 4 2 10 2 25 31 29 26 20 13 MIN. QNH PRESSURE IN HPA 1008.7 1005.1 1004.3 1002.3 1001.6 996.1 993.9 994.7 999.6 1007.3 1010.3 1012.9 993.9 DAY 13 29 29 29 26 20 22 4 4 9 8 8 MEAN QFF PRESSURE IN HPA 1017.7 1016.5 1012.3 1011.3 1007.3 1000.5 996.9 999.4 1004.3 1012.7 1018.6 1020.6 1009.8 MAX. QFF PRESSURE IN HPA 1024.4 1022.9 1017.7 1023.5 1012.7 1005.4 1000.0 1005.9 1008.9 1018.4 1024.1 1028.9 1028.9 DAY 20 2 4 2 10 2 25 31 29 26 20 13 MIN. QFF PRESSURE IN HPA 1009.0 1005.4 1004.6 1002.5 1001.8 996.3 994.1 994.9 999.8 1007.6 1010.6 1013.2 994.1 DAY 13 29 29 29 26 20 22 4 4 9 8 8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1018.5 1017.0 1013.1 1011.5 1007.5 1000.6 996.9 999.7 1004.9 1013.4 1019.2 1021.2 1010.3 MAX. QFE PRESSURE IN HPA 1025.8 1023.5 1019.3 1023.9 1013.1 1006.0 999.5 1006.1 1009.4 1018.8 1024.4 1029.3 1029.3 DAY 20 2 4 1 10 2 25 31 30 26 20 13 MIN. QFE PRESSURE IN HPA 1008.2 1008.4 1005.4 1001.8 1001.6 996.0 994.0 994.9 1000.6 1008.0 1010.5 1013.3 994.0 DAY 13 29 29 29 25 20 2 4 3 9 8 8 MEAN QNH PRESSURE IN HPA 1019.0 1017.5 1013.6 1012.0 1008.0 1001.0 997.4 1000.2 1005.3 1013.9 1019.7 1021.7 1010.8 MAX. QNH PRESSURE IN HPA 1026.3 1024.0 1019.8 1024.4 1013.6 1006.5 1000.0 1006.6 1009.9 1019.3 1024.9 1029.8 1029.8 DAY 20 2 4 1 10 2 25 31 30 26 20 13 MIN. QNH PRESSURE IN HPA 1008.7 1008.9 1005.9 1002.3 1002.1 996.5 994.5 995.4 1001.1 1008.5 1011.0 1013.8 994.5 DAY 13 29 29 29 25 20 2 4 3 9 8 8 MEAN QFF PRESSURE IN HPA 1019.1 1017.8 1013.8 1012.3 1008.2 1001.3 997.6 1000.4 1005.6 1014.2 1020.0 1022.0 1011.0 MAX. QFF PRESSURE IN HPA 1026.6 1024.3 1020.1 1024.7 1013.9 1006.7 1000.2 1006.8 1010.2 1019.6 1025.2 1030.1 1030.1 DAY 20 2 4 1 10 2 25 31 30 26 20 13 MIN. QFF PRESSURE IN HPA 1009.0 1009.2 1006.2 1002.5 1002.3 996.7 994.7 995.6 1001.3 1008.7 1011.3 1014.1 994.7 DAY 13 29 29 29 25 20 2 4 3 9 8 8 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1017.7 1016.4 1012.2 1010.9 1007.0 1000.2 996.5 999.2 1004.1 1012.4 1018.0 1020.2 1009.6 MAX. QFE PRESSURE IN HPA 1024.6 1022.0 1018.3 1024.1 1012.6 1005.6 999.2 1005.3 1008.5 1017.3 1023.3 1027.8 1027.8 DAY 20 1 4 1 10 2 25 31 27 26 20 12 MIN. QFE PRESSURE IN HPA 1005.9 1008.3 1005.3 1000.6 1001.2 995.4 993.7 994.4 999.0 1007.1 1009.8 1012.4 993.7 DAY 13 7 29 29 25 20 22 4 3 9 8 8 MEAN QNH PRESSURE IN HPA 1018.2 1016.9 1012.7 1011.4 1007.5 1000.7 997.0 999.7 1004.6 1012.9 1018.5 1020.7 1010.1 MAX. QNH PRESSURE IN HPA 1025.1 1022.5 1018.8 1024.6 1013.1 1006.1 999.7 1005.8 1009.0 1017.8 1023.8 1028.3 1028.3 DAY 20 1 4 1 10 2 25 31 27 26 20 12 MIN. QNH PRESSURE IN HPA 1006.4 1008.8 1005.8 1001.1 1001.7 995.9 994.2 994.9 999.5 1007.6 1010.3 1012.9 994.2 DAY 13 7 29 29 25 20 22 4 3 9 8 8 MEAN QFF PRESSURE IN HPA 1018.5 1017.2 1013.0 1011.6 1007.7 1001.0 997.3 1000.0 1004.8 1013.1 1018.8 1021.0 1010.3 MAX. QFF PRESSURE IN HPA 1025.4 1022.8 1019.1 1024.9 1013.4 1006.3 999.9 1006.0 1009.2 1018.1 1024.1 1028.6 1028.6 DAY 20 1 4 1 10 2 25 31 27 26 20 12 MIN. QFF PRESSURE IN HPA 1006.7 1009.1 1006.1 1001.3 1001.9 996.1 994.4 995.1 999.7 1007.8 1010.6 1013.2 994.4 DAY 13 7 29 29 25 20 22 4 3 9 8 8 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1016.2 1014.5 1010.3 1009.1 1005.7 999.2 995.2 997.8 1002.7 1010.9 1016.6 1018.8 1008.1 MAX. QFE PRESSURE IN HPA 1023.6 1020.1 1016.2 1022.6 1010.7 1004.2 997.6 1003.7 1006.8 1017.1 1021.9 1026.5 1026.5 DAY 20 1 13 1 10 2 30 31 27 26 20 12 MIN. QFE PRESSURE IN HPA 1004.7 1006.4 1003.1 999.0 1000.3 994.5 992.2 992.4 997.7 1005.6 1009.3 1011.3 992.2 DAY 13 7 2 29 25 20 22 4 3 9 8 21 MEAN QNH PRESSURE IN HPA 1016.7 1015.0 1010.8 1009.6 1006.2 999.7 995.7 998.3 1003.2 1011.4 1017.1 1019.3 1008.6 MAX. QNH PRESSURE IN HPA 1024.1 1020.6 1016.7 1023.1 1011.2 1004.7 998.1 1004.2 1007.3 1017.6 1022.4 1027.0 1027.0 DAY 20 1 13 1 10 2 30 31 27 26 20 12 MIN. QNH PRESSURE IN HPA 1005.2 1006.9 1003.6 999.5 1000.8 995.0 992.7 992.9 998.2 1006.1 1009.8 1011.8 992.7 DAY 13 7 2 29 25 20 22 4 3 9 8 21 MEAN QFF PRESSURE IN HPA 1017.2 1015.3 1011.1 1009.8 1006.4 999.9 995.9 998.5 1003.4 1011.6 1017.4 1019.6 1008.8 MAX. QFF PRESSURE IN HPA 1024.4 1020.9 1017.0 1023.4 1011.4 1004.9 998.3 1004.4 1007.5 1017.9 1022.7 1027.3 1027.3 DAY 20 1 13 1 10 2 30 31 29 26 20 12 MIN. QFF PRESSURE IN HPA 1005.5 1007.2 1003.9 999.7 1001.0 995.2 992.9 993.1 998.4 1006.3 1010.1 1012.1 992.9 DAY 13 7 2 29 25 20 22 4 3 9 8 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1016.7 1015.0 1010.7 1009.0 1005.4 998.8 994.6 997.4 1002.6 1011.1 1017.1 1019.5 1008.2 MAX. QFE PRESSURE IN HPA 1024.0 1021.6 1016.2 1023.1 1010.1 1004.0 996.8 1003.8 1007.0 1017.1 1021.9 1027.6 1027.6 DAY 20 1 13 1 10 2 13 31 29 26 20 12 MIN. QFE PRESSURE IN HPA 1006.2 1006.6 1005.1 999.1 1000.0 994.6 991.2 991.8 996.7 1006.1 1010.3 1012.2 991.2 DAY 13 7 2 29 25 20 22 4 3 9 8 9 MEAN QNH PRESSURE IN HPA 1017.1 1015.5 1011.1 1009.5 1005.9 999.3 995.1 997.9 1003.1 1011.6 1017.5 1020.0 1008.6 MAX. QNH PRESSURE IN HPA 1024.5 1022.1 1016.7 1023.6 1010.6 1004.5 997.3 1004.3 1007.5 1017.6 1022.4 1028.1 1028.1 DAY 20 1 13 1 10 2 13 31 29 26 20 12 MIN. QNH PRESSURE IN HPA 1006.7 1007.1 1005.6 999.6 1000.5 995.1 991.7 992.3 997.2 1006.6 1010.8 1012.7 991.7 DAY 13 7 2 29 25 20 22 4 3 9 8 9 MEAN QFF PRESSURE IN HPA 1017.4 1015.8 1011.4 1009.8 1006.1 999.5 995.4 998.2 1003.3 1011.9 1017.8 1020.3 1008.9 MAX. QFF PRESSURE IN HPA 1024.8 1022.4 1017.0 1023.9 1010.9 1004.7 997.5 1004.5 1007.8 1017.9 1022.7 1028.4 1028.4 DAY 20 1 13 1 10 2 13 31 29 26 20 12 MIN. QFF PRESSURE IN HPA 1007.0 1007.4 1005.9 999.8 1000.7 995.3 991.9 992.5 997.4 1006.9 1011.1 1013.0 991.9 DAY 13 7 2 29 25 20 22 4 3 9 8 9 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1017.5 1015.7 1012.0 1010.2 1006.5 999.9 995.7 998.5 1003.6 1012.1 1017.8 1020.1 1009.1 MAX. QFE PRESSURE IN HPA 1024.5 1022.2 1017.6 1023.8 1011.8 1009.1 998.2 1004.7 1008.2 1017.3 1022.4 1027.7 1027.7 DAY 20 1 31 1 9 16 12 30 28 26 20 12 MIN. QFE PRESSURE IN HPA 1009.2 1006.7 1005.0 1001.3 1000.9 995.8 992.5 993.3 997.7 1006.9 1011.2 1013.6 992.5 DAY 14 28 28 26 25 20 22 4 3 8 7 8 MEAN QNH PRESSURE IN HPA 1018.0 1016.2 1012.5 1010.7 1007.0 1000.4 996.2 999.0 1004.1 1012.6 1018.3 1020.6 1009.6 MAX. QNH PRESSURE IN HPA 1025.0 1022.7 1018.1 1024.3 1012.3 1009.6 998.7 1005.2 1008.7 1017.8 1022.9 1028.2 1028.2 DAY 20 1 31 1 9 16 12 30 28 26 20 12 MIN. QNH PRESSURE IN HPA 1009.7 1007.2 1005.5 1001.8 1001.4 996.3 993.0 993.8 998.2 1007.4 1011.7 1014.1 993.0 DAY 14 28 28 26 25 20 22 4 3 8 7 8 MEAN QFF PRESSURE IN HPA 1018.3 1016.5 1012.8 1010.9 1007.2 1000.6 996.5 999.2 1004.3 1012.8 1018.6 1020.9 1009.9 MAX. QFF PRESSURE IN HPA 1025.3 1023.0 1018.4 1024.6 1012.5 1009.8 998.9 1005.4 1008.9 1018.1 1023.2 1028.5 1028.5 DAY 20 1 31 1 9 16 12 30 28 26 20 12 MIN. QFF PRESSURE IN HPA 1010.0 1007.5 1005.8 1002.0 1001.6 996.5 993.2 994.0 998.4 1007.6 1012.0 1014.4 993.2 DAY 14 28 28 26 25 20 22 4 3 8 7 8 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1017.5 1015.4 1011.9 1010.3 1006.3 999.4 995.9 998.5 1003.4 1011.8 1017.6 1019.9 1009.0 MAX. QFE PRESSURE IN HPA 1024.1 1021.8 1019.2 1023.7 1012.1 1003.4 998.7 1005.0 1007.9 1016.7 1022.2 1027.7 1027.7 DAY 17 1 31 1 9 2 24 31 29 25 20 12 MIN. QFE PRESSURE IN HPA 1008.2 1005.5 1003.4 1002.0 1000.5 995.7 992.9 993.0 997.9 1006.3 1010.5 1012.9 992.9 DAY 14 7 28 29 31 20 15 4 3 8 7 8 MEAN QNH PRESSURE IN HPA 1018.0 1015.9 1012.4 1010.8 1006.8 999.8 996.4 999.0 1003.9 1012.2 1018.1 1020.4 1009.5 MAX. QNH PRESSURE IN HPA 1024.6 1022.3 1019.7 1024.2 1012.6 1003.9 999.2 1005.5 1008.4 1017.2 1022.7 1028.2 1028.2 DAY 17 1 31 1 9 2 24 31 29 25 20 12 MIN. QNH PRESSURE IN HPA 1008.7 1006.0 1003.9 1002.5 1001.0 996.2 993.4 993.5 998.4 1006.8 1011.0 1013.4 993.4 DAY 14 7 28 29 31 20 15 4 3 8 7 8 MEAN QFF PRESSURE IN HPA 1018.3 1016.2 1012.7 1011.1 1007.1 1000.1 996.7 999.3 1004.2 1012.5 1018.4 1020.7 1009.8 MAX. QFF PRESSURE IN HPA 1024.9 1022.6 1020.0 1024.5 1012.8 1004.1 999.4 1005.7 1008.6 1017.5 1023.0 1028.5 1028.5 DAY 17 1 31 1 9 2 24 31 29 25 20 12 MIN. QFF PRESSURE IN HPA 1009.0 1006.3 1004.2 1002.7 1001.2 996.4 993.6 993.7 998.6 1007.0 1011.3 1013.7 993.6 DAY 14 7 28 29 31 20 15 4 3 8 7 8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 10.3 13.6 18.9 22.6 29.5 33.4 35.6 35.7 32.4 27.2 19.3 12.9 24.3 MINIMUN AIR TEMPERATURE (C) 5.5 7.3 12.5 16.8 22.7 24.8 27.4 26.2 23.3 18.8 13.7 8.1 17.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 3 15 29 31 31 28 9 0 0 146 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 3 3 TEMPERATURE RECORDS LOWEST(C) 2.0 2.0 7.0 11.0 20.0 20.0 24.0 23.0 20.0 15.0 5.0 0.0 0.0 DAY 8 7 1 5 22 10 6 29 29 13 25 29 MAXIMUM AIR TEMPERATURE (C) 15.7 20.3 25.6 28.8 36.4 42.5 44.8 45.8 42.5 36.4 25.5 18.4 31.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 2 14 15 30 31 31 30 31 8 0 192 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 22.0 27.0 30.0 35.0 38.0 48.0 48.0 50.0 46.0 41.0 35.0 22.0 50.0 DAY 29 22 22 16 23 26 29 7 4 1 1 5 DIF. BETWEEN (MAX.-MIN.) (C) 10.2 13.0 13.1 12.0 13.7 17.7 17.4 19.6 19.2 17.6 11.8 10.3 14.6 MEAN DAILY TEMP. (MDT) (C) 10.6 13.8 19.0 22.8 29.5 33.7 36.1 36.0 32.9 27.6 19.6 13.2 24.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 6.0 67.5 127.0 380.0 468.5 465.5 358.0 205.0 31.0 0.0 2108.5 HEATING DEG. DAYS(BASE 18 0C) 229.0 119.5 17.5 1.0 0.0 0.0 0.0 0.0 0.0 0.0 23.5 147.5 538.0 DEWPOINT (MEAN C) 6.8 8.5 11.7 15.0 15.3 18.5 20.6 22.6 16.7 17.5 13.8 8.1 14.6 MIXING RATIO (G/KG) 6.29 7.09 8.77 10.80 11.17 13.97 16.36 18.44 12.35 12.91 10.11 6.97 11.27 VAPOUR PRESSURE (HPA) 10.18 11.46 14.08 17.25 17.75 21.95 25.50 28.69 19.55 20.54 16.22 11.29 17.87 SATURATION DEF. (HPA) 2.84 4.95 8.58 11.12 24.81 32.51 35.27 33.10 32.32 17.65 7.37 4.10 17.88 RELATIVE HUMIDITY (MEAN %) 81 75 67 66 46 46 47 50 43 59 73 75 61 RELATIVE HUMIDITY (MAX. %) 96 95 91 88 70 72 72 71 67 83 90 92 82 RELATIVE HUMIDITY (MIN. %) 59 50 41 44 24 24 27 34 22 35 53 53 39 RELATIVE HUMIDITY (MEAN% 03UTC) 92 94 88 83 65 66 67 65 59 78 87 89 78 RELATIVE HUMIDITY (MEAN% 09UTC) 65 61 50 48 29 29 32 39 27 40 59 62 45 RELATIVE HUMIDITY (MEAN% 15UTC) 76 62 52 55 34 31 34 40 31 51 69 69 50 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 26.1 0.1 2.5 3.0 1.0 0.0 0.0 0.0 0.0 0.0 56.5 16.0 105.2 DAYS WITH PRECIPITATION >=10 1 0 0 0 0 0 0 0 0 0 3 1 5 DAYS WITH PRECIPITATION >= 5 2 0 0 0 0 0 0 0 0 0 4 1 7 DAYS WITH PRECIPITATION >= 1 2 0 1 1 1 0 0 0 0 0 7 2 14 DAYS WITH PRECIPITATION 5 3 4 5 2 0 0 0 0 0 7 5 31 GREATEST DAILY PRECIPITATION 21.0 0.1 2.0 2.0 1.0 0.0 0.0 0.0 0.0 0.0 19.0 12.0 21.0 DAY 9 11 31 29 26 ** ** ** ** ** 22 5 DAY WITH THUNDER STORM 0 1 2 2 0 0 0 0 0 0 1 3 9 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 2 5 4 5 7 6 4 4 1 1 0 39 WIND DIRECTION (PREVAILING) 315 270 315 315 315 315 315 315 315 315 315 270 315 PREVAILING WIND SPEED(KNOTS) 6.0 6.6 8.2 7.6 11.3 11.6 10.4 8.2 6.7 5.6 5.8 6.9 8.1 PREVAILING WIND PERCENT 29.0 23.7 22.2 21.7 43.7 39.2 36.0 41.1 40.6 25.0 24.6 38.7 29.6 CALMS PERCENT OF WIND 16.9 15.6 15.3 9.6 8.7 11.3 5.7 8.1 11.7 20.6 20.8 16.5 13.6 NO. OF WIND OBSERVATION 248 224 248 240 126 240 247 248 239 248 240 248 2796 VECTOR WIND DIRECTION (MEAN) 295 258 195 166 309 298 293 295 304 296 281 277 291 VECTOR WIND MAGNITUDE(KNOTS) 1.7 1.5 0.9 0.7 4.5 5.6 4.9 4.1 2.6 1.2 1.3 2.8 2.4 WIND STEADINESES (MEAN %) 32.7 26.3 14.1 10.0 54.2 77.8 72.1 69.5 56.5 30.8 28.3 50.0 40.7 WIND SPEED (MEAN KNOTS) 5.2 5.7 6.4 7.0 8.3 7.2 6.8 5.9 4.6 3.9 4.6 5.6 5.9 FASTEST WIND DIRECTION 120 120 310 160 120 300 300 330 330 330 300 280 160 FASTEST WIND SPEED (KNOTS) 20 25 26 28 22 22 25 20 18 14 20 19 28 DAY 18 26 31 7 25 1 7 8 26 20 25 10 DAYS WITH SKY CLEAR (0-2)/8 13 19 15 14 11 28 31 31 29 22 14 13 240 DAYS WITH P.CLOUDY (3-6)/8 10 6 12 13 4 2 0 0 1 8 9 13 78 DAYS WITH CLOUDY (7-8)/8 8 3 4 3 1 0 0 0 0 1 7 5 32 DAYS WITH VISIBILITY =< 2 KM 0 1 0 1 1 1 3 3 3 2 0 8 23 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1017.7 1018.3 1013.6 1011.0 1006.6 1001.0 997.3 999.5 1006.0 1011.8 1016.1 1019.9 1009.9 MAX. QFE PRESSURE IN HPA 1028.1 1027.6 1021.6 1018.4 1011.6 1005.4 1005.0 1004.9 1012.8 1018.5 1022.8 1028.1 1028.1 DAY-HOUR 14- 6 8- 6 18- 6 3-12 29- 6 15- 9 4- 9 30- 6 30- 6 30- 6 25- 6 30- 6 MIN. QFE PRESSURE IN HPA 1003.7 1004.2 1002.4 1002.6 1000.5 996.1 990.6 993.0 998.9 1005.1 1006.9 1009.0 990.6 DAY-HOUR 19-12 26-15 31- 3 7-12 31-21 28-15 20-15 7-15 1-12 11-12 17-15 6-15 MEAN QNH PRESSURE IN HPA 1018.2 1018.8 1014.1 1011.5 1007.0 1001.5 997.8 999.9 1006.5 1012.3 1016.5 1020.4 1010.4 MAX. QNH PRESSURE IN HPA 1028.6 1028.1 1022.1 1018.9 1012.1 1005.9 1005.5 1005.4 1013.3 1019.0 1023.3 1028.6 1028.6 DAY-HOUR 14- 6 8- 6 18- 6 3-12 29- 6 15- 9 4- 9 30- 6 30- 6 30- 6 25- 6 30- 6 MIN. QNH PRESSURE IN HPA 1004.2 1004.7 1002.9 1003.1 1001.0 996.6 991.1 993.5 999.4 1005.6 1007.4 1009.5 991.1 DAY-HOUR 19-12 26-15 31- 3 7-12 31-21 28-15 20-15 7-15 1-12 11-12 17-15 6-15 MEAN QFF PRESSURE IN HPA 1018.5 1019.1 1014.4 1011.8 1007.2 1001.8 998.0 1000.2 1006.7 1012.6 1016.8 1020.7 1010.7 MAX. QFF PRESSURE IN HPA 1028.9 1028.4 1022.4 1019.2 1012.3 1006.1 1005.7 1005.6 1013.5 1019.3 1023.6 1028.9 1028.9 DAY-HOUR 14- 6 8- 6 18- 6 3-12 29- 6 15- 9 4- 9 30- 6 30- 6 30- 6 25- 6 30- 6 MIN. QFF PRESSURE IN HPA 1004.5 1005.0 1003.2 1003.4 1001.2 996.8 991.3 993.7 999.6 1005.8 1007.7 1009.8 991.3 DAY-HOUR 19-12 26-15 31- 3 7-12 31-21 29- 0 20-15 8- 0 1-12 11-12 17-15 6-15 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1017.5 1017.9 1013.3 1010.6 1006.0 1000.4 996.8 998.9 1005.3 1011.4 1015.7 1019.6 1009.5 MAX. QFE PRESSURE IN HPA 1025.7 1026.2 1019.7 1013.9 1009.9 1003.7 1004.2 1003.0 1010.0 1016.5 1020.8 1025.9 1026.2 DAY 14 7 9 1 29 16 5 30 30 30 25 30 MIN. QFE PRESSURE IN HPA 1004.1 1009.2 1003.7 1006.1 1002.4 996.1 991.9 993.0 999.4 1006.2 1009.6 1011.4 991.9 DAY 19 27 31 21 31 29 21 8 1 11 7 7 MEAN QNH PRESSURE IN HPA 1018.0 1018.4 1013.8 1011.0 1006.5 1000.9 997.3 999.4 1005.8 1011.9 1016.2 1020.1 1009.9 MAX. QNH PRESSURE IN HPA 1026.2 1026.7 1020.2 1014.4 1010.4 1004.2 1004.7 1003.5 1010.5 1017.0 1021.3 1026.4 1026.7 DAY 14 7 9 1 29 16 5 30 30 30 25 30 MIN. QNH PRESSURE IN HPA 1004.6 1009.7 1004.2 1006.6 1002.9 996.6 992.4 993.5 999.9 1006.7 1010.1 1011.9 992.4 DAY 19 27 31 21 31 29 21 8 1 11 7 7 MEAN QFF PRESSURE IN HPA 1018.3 1018.7 1014.0 1011.3 1006.6 1001.2 997.6 999.6 1006.1 1012.1 1016.4 1020.4 1010.2 MAX. QFF PRESSURE IN HPA 1026.5 1027.0 1020.5 1014.7 1010.6 1004.4 1004.9 1003.7 1010.7 1017.2 1021.6 1026.7 1027.0 DAY 14 7 9 1 29 16 5 30 30 30 25 30 MIN. QFF PRESSURE IN HPA 1004.9 1010.0 1004.5 1006.8 1003.1 996.8 992.6 993.7 1000.1 1006.9 1010.3 1012.2 992.6 DAY 19 27 31 21 31 29 21 8 1 11 7 7 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1017.7 1018.3 1013.5 1011.0 1006.8 1001.1 997.5 999.7 1006.1 1012.1 1016.3 1019.9 1010.0 MAX. QFE PRESSURE IN HPA 1025.6 1026.3 1020.1 1014.1 1010.9 1005.1 1004.4 1003.9 1011.2 1017.2 1021.3 1026.9 1026.9 DAY 25 7 9 24 29 16 5 30 30 30 24 30 MIN. QFE PRESSURE IN HPA 1005.3 1008.7 1002.4 1006.0 1002.4 996.2 992.5 993.7 1000.3 1007.2 1010.3 1013.0 992.5 DAY 19 26 31 7 31 29 20 8 1 11 7 7 MEAN QNH PRESSURE IN HPA 1018.2 1018.8 1014.0 1011.5 1007.3 1001.6 997.9 1000.2 1006.6 1012.6 1016.8 1020.4 1010.5 MAX. QNH PRESSURE IN HPA 1026.1 1026.8 1020.6 1014.6 1011.4 1005.6 1004.9 1004.4 1011.7 1017.7 1021.8 1027.4 1027.4 DAY 25 7 9 24 29 16 5 30 30 30 24 30 MIN. QNH PRESSURE IN HPA 1005.8 1009.2 1002.9 1006.5 1002.9 996.7 993.0 994.2 1000.8 1007.7 1010.8 1013.5 993.0 DAY 19 26 31 7 31 29 20 8 1 11 7 7 MEAN QFF PRESSURE IN HPA 1018.5 1019.1 1014.2 1011.8 1007.4 1001.8 998.2 1000.5 1006.8 1012.9 1017.1 1020.7 1010.7 MAX. QFF PRESSURE IN HPA 1026.4 1027.1 1020.9 1014.9 1011.6 1005.8 1005.1 1004.6 1011.9 1018.0 1022.1 1027.7 1027.7 DAY 25 7 9 24 29 16 5 30 30 30 24 30 MIN. QFF PRESSURE IN HPA 1006.1 1009.5 1003.2 1006.8 1003.1 996.9 993.2 994.4 1001.0 1007.9 1011.1 1013.8 993.2 DAY 19 26 31 7 31 29 20 8 1 11 7 7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1019.1 1019.8 1014.9 1012.4 1007.5 1002.0 998.2 1000.7 1007.2 1013.4 1017.5 1021.2 1011.2 MAX. QFE PRESSURE IN HPA 1028.1 1027.6 1021.6 1015.8 1011.6 1005.3 1004.9 1004.9 1012.8 1018.5 1022.8 1028.1 1028.1 DAY 14 8 18 10 29 16 4 30 30 30 25 30 MIN. QFE PRESSURE IN HPA 1007.3 1010.0 1004.3 1005.9 1003.0 997.0 993.5 994.5 1001.2 1008.3 1010.9 1014.0 993.5 DAY 19 26 31 7 31 29 20 8 1 11 7 6 MEAN QNH PRESSURE IN HPA 1019.5 1020.3 1015.4 1012.9 1007.9 1002.5 998.7 1001.2 1007.7 1013.9 1018.0 1021.7 1011.6 MAX. QNH PRESSURE IN HPA 1028.6 1028.1 1022.1 1016.3 1012.1 1005.8 1005.4 1005.4 1013.3 1019.0 1023.3 1028.6 1028.6 DAY 14 8 18 10 29 16 4 30 30 30 25 30 MIN. QNH PRESSURE IN HPA 1007.8 1010.5 1004.8 1006.4 1003.5 997.5 994.0 995.0 1001.7 1008.8 1011.4 1014.5 994.0 DAY 19 26 31 7 31 29 20 8 1 11 7 6 MEAN QFF PRESSURE IN HPA 1019.9 1020.6 1015.6 1013.1 1008.0 1002.7 998.8 1001.4 1008.0 1014.2 1018.3 1022.0 1011.9 MAX. QFF PRESSURE IN HPA 1028.9 1028.4 1022.4 1016.6 1012.3 1006.0 1005.6 1005.6 1013.5 1019.3 1023.6 1028.9 1028.9 DAY 14 8 18 12 29 16 4 30 30 30 25 30 MIN. QFF PRESSURE IN HPA 1008.1 1010.8 1005.1 1006.7 1003.7 997.7 994.2 995.2 1001.9 1009.0 1011.6 1014.8 994.2 DAY 19 26 31 7 31 29 20 8 1 11 7 6 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1018.2 1019.0 1014.5 1011.8 1007.1 1002.0 998.1 1000.2 1006.7 1012.3 1016.5 1020.4 1010.6 MAX. QFE PRESSURE IN HPA 1027.2 1026.6 1020.4 1015.2 1011.2 1005.4 1005.0 1004.2 1011.4 1017.1 1021.7 1026.7 1027.2 DAY 14 6 18 12 29 15 4 30 30 30 25 30 MIN. QFE PRESSURE IN HPA 1006.7 1007.4 1004.9 1004.2 1002.3 997.1 993.0 994.4 999.9 1007.0 1009.8 1012.3 993.0 DAY 19 26 31 7 31 29 20 8 1 11 7 6 MEAN QNH PRESSURE IN HPA 1018.7 1019.5 1015.0 1012.3 1007.6 1002.4 998.6 1000.6 1007.2 1012.8 1017.0 1020.9 1011.0 MAX. QNH PRESSURE IN HPA 1027.7 1027.1 1020.9 1015.7 1011.7 1005.9 1005.5 1004.7 1011.9 1017.6 1022.2 1027.2 1027.7 DAY 14 6 18 12 29 15 4 30 30 30 25 30 MIN. QNH PRESSURE IN HPA 1007.2 1007.9 1005.4 1004.7 1002.8 997.6 993.5 994.9 1000.4 1007.5 1010.3 1012.8 993.5 DAY 19 26 31 7 31 29 20 8 1 11 7 6 MEAN QFF PRESSURE IN HPA 1019.0 1019.8 1015.2 1012.5 1007.8 1002.7 998.8 1000.9 1007.4 1013.1 1017.3 1021.1 1011.3 MAX. QFF PRESSURE IN HPA 1028.0 1027.4 1021.2 1016.0 1011.9 1006.1 1005.7 1004.9 1012.1 1017.9 1022.5 1027.5 1028.0 DAY 14 6 18 12 29 15 4 30 30 30 25 30 MIN. QFF PRESSURE IN HPA 1007.5 1008.2 1005.7 1005.0 1003.0 997.8 993.7 995.1 1000.6 1007.7 1010.5 1013.1 993.7 DAY 19 26 31 7 31 29 20 8 1 11 7 6 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1016.6 1017.2 1012.7 1010.5 1006.3 1000.8 996.9 998.9 1005.1 1010.7 1015.0 1018.8 1009.1 MAX. QFE PRESSURE IN HPA 1026.4 1025.1 1018.3 1018.4 1009.3 1004.0 1004.7 1003.1 1009.5 1015.1 1020.2 1025.1 1026.4 DAY 13 6 1 3 29 15 4 30 30 29 24 30 MIN. QFE PRESSURE IN HPA 1003.7 1004.5 1004.1 1002.6 1003.2 996.5 991.4 993.6 998.9 1005.1 1007.3 1009.8 991.4 DAY 19 26 25 7 24 28 20 7 1 11 17 6 MEAN QNH PRESSURE IN HPA 1017.1 1017.7 1013.2 1011.0 1006.8 1001.3 997.4 999.3 1005.6 1011.2 1015.5 1019.3 1009.6 MAX. QNH PRESSURE IN HPA 1026.9 1025.6 1018.8 1018.9 1009.8 1004.5 1005.2 1003.6 1010.0 1015.6 1020.7 1025.6 1026.9 DAY 13 6 1 3 29 15 4 30 30 29 24 30 MIN. QNH PRESSURE IN HPA 1004.2 1005.0 1004.6 1003.1 1003.7 997.0 991.9 994.1 999.4 1005.6 1007.8 1010.3 991.9 DAY 19 26 25 7 24 28 20 7 1 11 17 6 MEAN QFF PRESSURE IN HPA 1017.4 1018.0 1013.5 1011.2 1007.0 1001.5 997.6 999.6 1005.9 1011.4 1015.7 1019.6 1009.9 MAX. QFF PRESSURE IN HPA 1027.2 1025.9 1019.1 1019.2 1010.0 1004.7 1005.4 1003.8 1010.2 1015.8 1021.0 1025.9 1027.2 DAY 13 6 1 3 29 15 4 30 30 29 24 30 MIN. QFF PRESSURE IN HPA 1004.5 1005.3 1004.9 1003.4 1003.9 997.2 992.1 994.3 999.6 1005.8 1008.1 1010.6 992.1 DAY 19 26 25 7 24 28 20 7 1 11 17 6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1017.1 1017.6 1012.7 1009.9 1005.5 1000.2 996.4 998.5 1005.2 1011.0 1015.3 1019.4 1009.1 MAX. QFE PRESSURE IN HPA 1026.4 1025.9 1018.4 1013.3 1008.9 1003.3 1004.4 1002.8 1010.0 1015.6 1020.5 1025.5 1026.4 DAY 13 7 8 24 29 15 4 30 30 29 24 29 MIN. QFE PRESSURE IN HPA 1004.0 1004.2 1004.8 1004.2 1003.1 996.1 990.6 993.0 998.9 1006.5 1006.9 1009.0 990.6 DAY 19 26 6 7 25 28 20 7 1 11 17 6 MEAN QNH PRESSURE IN HPA 1017.6 1018.1 1013.2 1010.4 1006.0 1000.7 996.9 999.0 1005.7 1011.5 1015.8 1019.9 1009.6 MAX. QNH PRESSURE IN HPA 1026.9 1026.4 1018.9 1013.8 1009.4 1003.8 1004.9 1003.3 1010.5 1016.1 1021.0 1026.0 1026.9 DAY 13 7 8 24 29 15 4 30 30 29 24 29 MIN. QNH PRESSURE IN HPA 1004.5 1004.7 1005.3 1004.7 1003.6 996.6 991.1 993.5 999.4 1007.0 1007.4 1009.5 991.1 DAY 19 26 6 7 25 28 20 7 1 11 17 6 MEAN QFF PRESSURE IN HPA 1017.9 1018.4 1013.5 1010.6 1006.3 1000.9 997.2 999.2 1005.9 1011.8 1016.1 1020.2 1009.8 MAX. QFF PRESSURE IN HPA 1027.2 1026.7 1019.2 1014.1 1009.6 1004.0 1005.1 1003.5 1010.7 1016.4 1021.3 1026.3 1027.2 DAY 13 7 8 24 29 15 4 30 30 29 24 29 MIN. QFF PRESSURE IN HPA 1004.8 1005.0 1005.6 1005.0 1003.8 996.8 991.3 993.7 999.6 1007.2 1007.7 1009.8 991.3 DAY 19 26 6 7 25 28 20 7 1 11 17 6 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1018.1 1018.5 1013.9 1011.3 1007.0 1001.1 997.3 999.6 1006.3 1012.0 1016.2 1020.2 1010.1 MAX. QFE PRESSURE IN HPA 1027.2 1026.7 1020.2 1015.0 1010.0 1004.3 1004.9 1003.5 1010.9 1016.9 1021.7 1026.3 1027.2 DAY 13 6 8 12 18 16 4 30 29 29 24 29 MIN. QFE PRESSURE IN HPA 1006.7 1007.0 1007.4 1006.7 1004.3 997.0 992.5 994.4 1000.5 1008.1 1009.7 1009.0 992.5 DAY 19 26 6 7 23 4 20 1 1 10 17 6 MEAN QNH PRESSURE IN HPA 1018.6 1019.0 1014.4 1011.8 1007.5 1001.6 997.8 1000.0 1006.8 1012.5 1016.7 1020.7 1010.6 MAX. QNH PRESSURE IN HPA 1027.7 1027.2 1020.7 1015.5 1010.5 1004.8 1005.4 1004.0 1011.4 1017.4 1022.2 1026.8 1027.7 DAY 13 6 8 12 18 16 4 30 29 29 24 29 MIN. QNH PRESSURE IN HPA 1007.2 1007.5 1007.9 1007.2 1004.8 997.5 993.0 994.9 1001.0 1008.6 1010.2 1009.5 993.0 DAY 19 26 6 7 23 4 20 1 1 10 17 6 MEAN QFF PRESSURE IN HPA 1018.9 1019.3 1014.7 1012.1 1007.7 1001.9 998.0 1000.3 1007.1 1012.8 1017.0 1021.0 1010.9 MAX. QFF PRESSURE IN HPA 1028.0 1027.5 1021.0 1015.8 1010.7 1005.0 1005.6 1004.2 1011.6 1017.7 1022.5 1027.1 1028.0 DAY 13 6 8 12 18 16 4 30 29 29 24 29 MIN. QFF PRESSURE IN HPA 1007.5 1007.8 1008.2 1007.5 1005.0 997.7 993.2 995.1 1001.2 1008.8 1010.5 1009.8 993.2 DAY 19 26 6 7 23 4 20 7 1 10 17 6 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1017.9 1018.6 1013.9 1011.1 1006.3 1000.9 997.3 999.5 1006.1 1011.9 1016.0 1019.7 1009.9 MAX. QFE PRESSURE IN HPA 1026.5 1026.7 1020.5 1015.0 1010.1 1004.2 1004.5 1003.8 1010.8 1016.5 1021.5 1026.3 1026.7 DAY 13 6 8 23 28 15 4 10 29 29 24 29 MIN. QFE PRESSURE IN HPA 1006.0 1007.9 1007.5 1007.1 1000.5 996.7 992.6 993.9 1000.9 1007.5 1010.3 1009.6 992.6 DAY 18 26 13 20 31 4 19 1 1 10 17 6 MEAN QNH PRESSURE IN HPA 1018.4 1019.0 1014.3 1011.6 1006.8 1001.4 997.8 999.9 1006.6 1012.4 1016.5 1020.2 1010.4 MAX. QNH PRESSURE IN HPA 1027.0 1027.2 1021.0 1015.5 1010.6 1004.7 1005.0 1004.3 1011.3 1017.0 1022.0 1026.8 1027.2 DAY 13 6 8 23 28 15 4 10 29 29 24 29 MIN. QNH PRESSURE IN HPA 1006.5 1008.4 1008.0 1007.6 1001.0 997.2 993.1 994.4 1001.4 1008.0 1010.8 1010.1 993.1 DAY 18 26 13 20 31 4 19 1 1 10 17 6 MEAN QFF PRESSURE IN HPA 1018.7 1019.3 1014.6 1011.9 1007.0 1001.6 998.0 1000.2 1006.8 1012.6 1016.8 1020.5 1010.7 MAX. QFF PRESSURE IN HPA 1027.3 1027.5 1021.3 1015.8 1010.8 1004.9 1005.2 1004.5 1011.5 1017.3 1022.3 1027.1 1027.5 DAY 13 6 8 23 28 15 4 10 29 29 24 29 MIN. QFF PRESSURE IN HPA 1006.8 1008.7 1008.3 1007.8 1001.2 997.4 993.3 994.6 1001.6 1008.2 1011.1 1010.4 993.3 DAY 18 26 13 20 31 4 19 1 1 10 17 6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 12.5 13.7 21.2 26.3 31.9 34.2 36.2 35.8 31.7 26.8 18.2 14.0 25.2 MINIMUN AIR TEMPERATURE (C) 7.4 6.7 13.8 17.5 23.3 24.9 27.6 25.5 21.4 17.5 11.0 9.5 17.2 DAYS WITH MINIMUM TEMP. >=21 0 0 1 4 26 30 31 31 16 5 0 0 144 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 2 1 0 0 0 0 0 0 0 0 0 0 3 TEMPERATURE RECORDS LOWEST(C) -1.0 0.0 8.0 13.0 16.0 21.0 22.0 22.0 16.0 12.0 2.0 4.0 -1.0 DAY 1 2 1 7 2 24 13 18 23 23 24 3 MAXIMUM AIR TEMPERATURE (C) 18.5 20.8 28.8 35.3 41.1 43.3 45.6 46.4 41.5 37.0 25.9 20.2 33.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 15 29 31 30 31 31 30 31 5 0 233 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 22.0 27.0 34.0 42.0 48.0 47.0 50.0 49.0 48.0 42.0 33.0 28.0 50.0 DAY 15 21 21 28 18 27 19 22 1 5 4 10 DIF. BETWEEN (MAX.-MIN.) (C) 11.1 14.1 15.0 17.8 17.8 18.4 18.0 20.9 20.1 19.5 14.9 10.7 16.5 MEAN DAILY TEMP. (MDT) (C) 12.9 13.7 21.3 26.4 32.2 34.1 36.6 35.9 31.5 27.2 18.5 14.9 25.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 36.0 162.0 347.5 393.0 483.0 462.5 314.0 193.5 17.5 1.5 2410.5 HEATING DEG. DAYS(BASE 18 0C) 157.0 121.0 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 46.0 110.5 436.0 DEWPOINT (MEAN C) 8.2 6.0 8.8 11.5 13.4 13.2 14.7 16.8 11.1 12.2 9.9 11.2 11.4 MIXING RATIO (G/KG) 6.89 6.00 7.37 8.74 10.28 9.98 10.93 12.64 8.52 9.40 8.26 8.50 8.96 VAPOUR PRESSURE (HPA) 11.15 9.73 11.84 13.98 16.32 15.79 17.18 19.84 13.56 15.03 13.29 13.72 14.29 SATURATION DEF. (HPA) 3.84 6.94 14.62 22.16 33.80 40.98 46.01 42.75 36.12 22.56 9.01 2.81 23.47 RELATIVE HUMIDITY (MEAN %) 77 65 49 44 37 32 30 36 31 46 62 85 50 RELATIVE HUMIDITY (MAX. %) 94 90 75 71 61 57 47 58 50 71 84 96 71 RELATIVE HUMIDITY (MIN. %) 54 40 27 22 18 15 16 18 16 21 40 67 30 RELATIVE HUMIDITY (MEAN% 03UTC) 93 86 71 66 54 49 43 53 46 65 74 94 66 RELATIVE HUMIDITY (MEAN% 09UTC) 62 46 33 27 21 17 19 23 19 30 45 76 35 RELATIVE HUMIDITY (MEAN% 15UTC) 68 51 37 32 26 21 23 25 23 37 57 81 40 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 11.6 0.0 5.5 1.0 12.0 0.0 0.0 0.0 0.0 0.0 7.0 35.2 72.3 DAYS WITH PRECIPITATION >=10 0 0 0 0 1 0 0 0 0 0 0 2 3 DAYS WITH PRECIPITATION >= 5 0 0 0 0 1 0 0 0 0 0 1 2 4 DAYS WITH PRECIPITATION >= 1 6 0 2 1 1 0 0 0 0 0 2 3 15 DAYS WITH PRECIPITATION 7 2 4 1 3 0 0 0 0 1 2 4 24 GREATEST DAILY PRECIPITATION 3.0 0.0 4.0 1.0 12.0 0.0 0.0 0.0 0.0 0.0 6.0 21.0 21.0 DAY 5 ** 7 11 31 ** ** ** ** ** 30 6 DAY WITH THUNDER STORM 1 1 2 0 2 0 0 0 0 1 0 0 7 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 2 8 3 7 10 10 2 9 2 2 0 55 WIND DIRECTION (PREVAILING) 270 270 315 180 315 315 315 315 315 315 315 315 315 PREVAILING WIND SPEED(KNOTS) 6.8 5.5 9.2 6.6 8.1 11.1 11.0 8.0 9.1 6.7 5.0 6.3 8.5 PREVAILING WIND PERCENT 20.2 34.8 24.6 23.3 21.8 40.4 49.2 44.4 51.7 22.2 28.5 23.4 31.0 CALMS PERCENT OF WIND 25.8 18.8 12.9 10.8 16.9 13.3 4.8 16.1 8.3 27.0 15.1 16.5 15.6 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 239 248 2919 VECTOR WIND DIRECTION (MEAN) 243 297 244 283 300 305 307 300 323 310 297 317 301 VECTOR WIND MAGNITUDE(KNOTS) 1.5 3.9 2.0 2.2 2.2 5.3 7.2 4.9 6.6 1.9 1.6 1.4 3.2 WIND STEADINESES (MEAN %) 30.0 75.0 26.7 32.4 35.5 67.1 80.9 84.5 85.7 42.2 35.6 31.1 51.6 WIND SPEED (MEAN KNOTS) 5.0 5.2 7.5 6.8 6.2 7.9 8.9 5.8 7.7 4.5 4.5 4.5 6.2 FASTEST WIND DIRECTION 160 340 120 360 330 310 30 340 330 120 300 300 300 FASTEST WIND SPEED (KNOTS) 20 18 28 25 20 24 32 18 20 18 18 40 40 DAY 4 25 8 14 12 19 12 14 2 28 21 2 DAYS WITH SKY CLEAR (0-2)/8 16 19 21 18 19 27 30 31 30 27 17 12 267 DAYS WITH P.CLOUDY (3-6)/8 6 8 3 10 10 3 1 0 0 4 8 10 63 DAYS WITH CLOUDY (7-8)/8 9 1 7 2 2 0 0 0 0 0 5 9 35 DAYS WITH VISIBILITY =< 2 KM 2 1 4 2 3 4 6 1 4 0 1 8 36 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1019.0 1020.1 1013.3 1010.1 1007.3 1001.1 996.3 997.8 1003.8 1011.0 1017.7 1018.5 1009.7 MAX. QFE PRESSURE IN HPA 1025.2 1028.0 1019.9 1017.4 1015.1 1008.5 1003.4 1002.8 1009.5 1021.2 1024.6 1025.5 1028.0 DAY-HOUR 13- 6 1- 6 27- 6 23-18 3-21 12- 6 12- 6 18- 9 20- 6 17- 6 23- 6 5- 6 MIN. QFE PRESSURE IN HPA 1011.2 1012.0 1001.7 999.8 1000.5 992.5 991.8 992.6 994.7 1002.1 1007.4 1010.4 991.8 DAY-HOUR 21-18 22-15 24-15 29- 0 19-15 30-18 1-15 6-15 1- 3 4-12 30-21 1- 3 MEAN QNH PRESSURE IN HPA 1019.5 1020.6 1013.8 1010.6 1007.8 1001.6 996.8 998.3 1004.3 1011.5 1018.2 1019.0 1010.2 MAX. QNH PRESSURE IN HPA 1025.7 1028.5 1020.4 1017.9 1015.6 1009.0 1003.9 1003.3 1010.0 1021.7 1025.1 1026.0 1028.5 DAY-HOUR 13- 6 1- 6 27- 6 23-18 3-21 12- 6 12- 6 18- 9 20- 6 17- 6 23- 6 5- 6 MIN. QNH PRESSURE IN HPA 1011.7 1012.5 1002.2 1000.3 1001.0 993.0 992.3 993.1 995.2 1002.6 1007.9 1010.9 992.3 DAY-HOUR 21-18 22-15 24-15 29- 0 19-15 30-18 1-15 6-15 1- 3 4-12 30-21 1- 3 MEAN QFF PRESSURE IN HPA 1019.8 1020.9 1014.0 1010.8 1008.1 1001.9 997.0 998.5 1004.5 1011.7 1018.5 1019.3 1010.4 MAX. QFF PRESSURE IN HPA 1026.0 1028.8 1020.7 1018.2 1015.8 1009.2 1004.1 1003.5 1010.2 1022.0 1025.4 1026.3 1028.8 DAY-HOUR 13- 6 1- 6 27- 6 23-18 3-21 12- 6 12- 6 18- 9 20- 6 17- 6 23- 6 5- 6 MIN. QFF PRESSURE IN HPA 1012.0 1012.8 1002.5 1000.5 1001.2 993.2 992.5 993.3 995.4 1002.8 1008.2 1011.2 992.5 DAY-HOUR 21-18 22-15 24-15 29- 0 19-15 30-18 1-15 6-15 1- 3 4-12 30-21 1- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1018.9 1020.1 1013.1 1009.6 1006.8 1000.9 995.9 997.2 1003.2 1010.4 1017.6 1018.5 1009.3 MAX. QFE PRESSURE IN HPA 1023.5 1026.0 1017.7 1015.5 1013.7 1007.3 1001.8 1000.9 1007.8 1017.4 1022.3 1023.4 1026.0 DAY 14 1 17 1 4 12 12 19 30 31 23 5 MIN. QFE PRESSURE IN HPA 1012.3 1012.9 1005.6 999.8 1000.6 995.1 992.2 992.9 996.8 1006.2 1013.8 1013.2 992.2 DAY 5 23 23 29 20 28 1 7 1 12 30 9 MEAN QNH PRESSURE IN HPA 1019.4 1020.6 1013.6 1010.1 1007.3 1001.4 996.3 997.7 1003.6 1010.9 1018.1 1019.0 1009.8 MAX. QNH PRESSURE IN HPA 1024.0 1026.5 1018.2 1016.0 1014.2 1007.8 1002.3 1001.4 1008.3 1017.9 1022.8 1023.9 1026.5 DAY 14 1 17 1 4 12 12 19 30 31 23 5 MIN. QNH PRESSURE IN HPA 1012.8 1013.4 1006.1 1000.3 1001.1 995.6 992.7 993.4 997.3 1006.7 1014.3 1013.7 992.7 DAY 5 23 23 29 20 28 1 7 1 12 30 9 MEAN QFF PRESSURE IN HPA 1019.7 1020.9 1013.8 1010.3 1007.6 1001.6 996.6 997.9 1003.9 1011.2 1018.4 1019.2 1010.1 MAX. QFF PRESSURE IN HPA 1024.3 1026.8 1018.5 1016.3 1014.4 1008.0 1002.5 1001.6 1008.5 1018.2 1023.1 1024.2 1026.8 DAY 14 1 17 1 4 12 12 19 30 31 23 5 MIN. QFF PRESSURE IN HPA 1013.1 1013.7 1006.3 1000.5 1001.3 995.8 992.9 993.6 997.5 1006.9 1014.6 1014.0 992.9 DAY 5 23 23 29 20 28 1 7 1 12 30 9 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1019.1 1020.3 1013.5 1010.2 1007.5 1001.4 996.5 998.0 1003.7 1011.1 1018.0 1018.3 1009.8 MAX. QFE PRESSURE IN HPA 1023.7 1026.5 1018.4 1016.3 1013.9 1007.6 1003.3 1001.4 1008.2 1018.2 1023.0 1023.6 1026.5 DAY 13 1 27 1 4 12 12 18 30 31 23 5 MIN. QFE PRESSURE IN HPA 1012.7 1014.2 1007.3 1000.1 1000.9 995.2 993.3 993.7 994.7 1006.1 1012.7 1010.4 993.3 DAY 22 23 23 29 20 30 21 6 1 12 30 1 MEAN QNH PRESSURE IN HPA 1019.6 1020.8 1014.0 1010.7 1008.0 1001.9 997.0 998.5 1004.2 1011.6 1018.5 1018.8 1010.3 MAX. QNH PRESSURE IN HPA 1024.2 1027.0 1018.9 1016.8 1014.4 1008.1 1003.8 1001.9 1008.7 1018.7 1023.5 1024.1 1027.0 DAY 13 1 27 1 4 12 12 18 30 31 23 5 MIN. QNH PRESSURE IN HPA 1013.2 1014.7 1007.8 1000.6 1001.4 995.7 993.8 994.2 995.2 1006.6 1013.2 1010.9 993.8 DAY 22 23 23 29 20 30 21 6 1 12 30 1 MEAN QFF PRESSURE IN HPA 1019.9 1021.1 1014.3 1010.9 1008.3 1002.1 997.2 998.7 1004.4 1011.9 1018.7 1019.1 1010.6 MAX. QFF PRESSURE IN HPA 1024.5 1027.3 1019.2 1017.1 1014.7 1008.3 1004.0 1002.1 1008.9 1019.0 1023.8 1024.4 1027.3 DAY 13 1 27 1 4 12 12 18 30 31 23 5 MIN. QFF PRESSURE IN HPA 1013.5 1015.0 1008.1 1000.8 1001.6 995.9 994.0 994.4 995.4 1006.8 1013.5 1011.2 994.0 DAY 22 23 23 29 20 30 21 6 1 12 30 1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1020.5 1021.6 1015.0 1011.5 1008.7 1002.1 997.2 998.9 1005.0 1012.7 1019.5 1019.7 1011.0 MAX. QFE PRESSURE IN HPA 1025.2 1028.0 1019.9 1017.3 1014.3 1008.5 1003.4 1002.7 1009.5 1021.2 1024.6 1025.5 1028.0 DAY 13 1 27 1 4 12 12 18 20 17 23 5 MIN. QFE PRESSURE IN HPA 1013.6 1015.6 1007.9 1002.3 1001.7 994.9 994.3 994.3 999.2 1008.1 1014.4 1012.7 994.3 DAY 21 22 22 29 20 30 1 6 1 12 30 1 MEAN QNH PRESSURE IN HPA 1021.0 1022.1 1015.5 1012.0 1009.2 1002.6 997.7 999.4 1005.5 1013.2 1020.0 1020.2 1011.5 MAX. QNH PRESSURE IN HPA 1025.7 1028.5 1020.4 1017.8 1014.8 1009.0 1003.9 1003.2 1010.0 1021.7 1025.1 1026.0 1028.5 DAY 13 1 27 1 4 12 12 18 20 17 23 5 MIN. QNH PRESSURE IN HPA 1014.1 1016.1 1008.4 1002.8 1002.2 995.4 994.8 994.8 999.7 1008.6 1014.9 1013.2 994.8 DAY 21 22 22 29 20 30 1 6 1 12 30 1 MEAN QFF PRESSURE IN HPA 1021.3 1022.4 1015.8 1012.3 1009.4 1002.9 998.0 999.7 1005.8 1013.4 1020.3 1020.5 1011.8 MAX. QFF PRESSURE IN HPA 1026.0 1028.8 1020.7 1018.1 1015.1 1009.2 1004.1 1003.4 1010.2 1022.0 1025.4 1026.3 1028.8 DAY 13 1 27 1 4 12 12 18 20 17 23 5 MIN. QFF PRESSURE IN HPA 1014.4 1016.4 1008.7 1003.0 1002.4 995.6 995.0 995.0 999.9 1008.8 1015.2 1013.5 995.0 DAY 21 22 22 29 20 30 1 6 1 12 30 1 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1019.3 1020.7 1014.1 1011.0 1008.3 1001.9 997.1 998.6 1004.4 1011.6 1018.4 1018.9 1010.3 MAX. QFE PRESSURE IN HPA 1024.9 1027.0 1019.4 1017.3 1013.8 1007.6 1002.7 1002.8 1008.8 1017.4 1023.9 1024.0 1027.0 DAY 19 1 16 1 4 12 12 18 20 31 27 5 MIN. QFE PRESSURE IN HPA 1012.7 1014.1 1006.7 1001.7 1002.2 994.7 994.4 993.9 998.6 1006.7 1012.2 1012.6 993.9 DAY 21 22 22 29 20 30 1 6 1 14 30 1 MEAN QNH PRESSURE IN HPA 1019.8 1021.2 1014.5 1011.5 1008.8 1002.4 997.6 999.0 1004.9 1012.1 1018.9 1019.4 1010.8 MAX. QNH PRESSURE IN HPA 1025.4 1027.5 1019.9 1017.8 1014.3 1008.1 1003.2 1003.3 1009.3 1017.9 1024.4 1024.5 1027.5 DAY 19 1 16 1 4 12 12 18 20 31 27 5 MIN. QNH PRESSURE IN HPA 1013.2 1014.6 1007.2 1002.2 1002.7 995.2 994.9 994.4 999.1 1007.2 1012.7 1013.1 994.4 DAY 21 22 22 29 20 30 1 6 1 14 30 1 MEAN QFF PRESSURE IN HPA 1020.1 1021.5 1014.8 1011.8 1009.1 1002.6 997.8 999.3 1005.1 1012.3 1019.2 1019.7 1011.1 MAX. QFF PRESSURE IN HPA 1025.7 1027.8 1020.2 1018.1 1014.5 1008.3 1003.4 1003.5 1009.5 1018.2 1024.7 1024.8 1027.8 DAY 19 1 16 1 4 12 12 18 20 31 27 5 MIN. QFF PRESSURE IN HPA 1013.5 1014.9 1007.4 1002.4 1002.9 995.4 995.1 994.6 999.3 1007.4 1013.0 1013.4 994.6 DAY 21 22 22 29 20 30 1 6 1 14 30 1 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1017.9 1019.0 1012.1 1009.3 1006.7 1000.6 995.8 997.3 1003.0 1009.8 1016.6 1017.4 1008.8 MAX. QFE PRESSURE IN HPA 1022.8 1025.3 1017.6 1015.9 1012.3 1005.9 1001.4 1001.6 1007.7 1015.9 1022.2 1021.9 1025.3 DAY 19 1 16 23 4 12 12 18 20 31 23 5 MIN. QFE PRESSURE IN HPA 1011.4 1012.3 1003.7 1000.5 1000.9 993.3 993.1 993.0 998.1 1002.1 1008.9 1011.6 993.0 DAY 21 22 22 29 19 30 1 6 1 4 30 14 MEAN QNH PRESSURE IN HPA 1018.4 1019.5 1012.6 1009.8 1007.2 1001.1 996.3 997.8 1003.4 1010.3 1017.1 1017.9 1009.3 MAX. QNH PRESSURE IN HPA 1023.3 1025.8 1018.1 1016.4 1012.8 1006.4 1001.9 1002.1 1008.2 1016.4 1022.7 1022.4 1025.8 DAY 19 1 16 23 4 12 12 18 20 31 23 5 MIN. QNH PRESSURE IN HPA 1011.9 1012.8 1004.2 1001.0 1001.4 993.8 993.6 993.5 998.6 1002.6 1009.4 1012.1 993.5 DAY 21 22 22 29 19 30 1 6 1 4 30 14 MEAN QFF PRESSURE IN HPA 1018.6 1019.8 1012.9 1010.0 1007.5 1001.4 996.5 998.1 1003.7 1010.5 1017.4 1018.3 1009.6 MAX. QFF PRESSURE IN HPA 1023.6 1026.1 1018.4 1016.7 1013.0 1006.6 1002.1 1002.3 1008.4 1016.7 1023.0 1022.7 1026.1 DAY 19 1 16 23 4 12 12 18 20 31 23 5 MIN. QFF PRESSURE IN HPA 1012.2 1013.1 1004.4 1001.2 1001.6 994.0 993.8 993.7 998.8 1002.8 1009.7 1012.4 993.7 DAY 21 22 22 29 19 30 1 6 1 4 30 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1018.4 1019.3 1012.0 1009.0 1006.2 1000.0 995.3 996.8 1002.9 1010.2 1016.9 1018.0 1008.7 MAX. QFE PRESSURE IN HPA 1023.6 1025.8 1017.3 1016.2 1011.8 1005.6 1000.7 1000.8 1007.3 1016.2 1022.7 1022.0 1025.8 DAY 19 1 16 23 3 11 12 18 30 31 23 26 MIN. QFE PRESSURE IN HPA 1011.5 1012.0 1001.7 1000.4 1000.5 992.6 991.8 992.6 998.4 1005.7 1008.9 1012.1 991.8 DAY 21 22 24 28 19 30 1 6 1 14 30 8 MEAN QNH PRESSURE IN HPA 1018.8 1019.8 1012.5 1009.5 1006.7 1000.5 995.8 997.3 1003.3 1010.7 1017.4 1018.5 1009.2 MAX. QNH PRESSURE IN HPA 1024.1 1026.3 1017.8 1016.7 1012.3 1006.1 1001.2 1001.3 1007.8 1016.7 1023.2 1022.5 1026.3 DAY 19 1 16 23 3 11 12 18 30 31 23 26 MIN. QNH PRESSURE IN HPA 1012.0 1012.5 1002.2 1000.9 1001.0 993.1 992.3 993.1 998.9 1006.2 1009.4 1012.6 992.3 DAY 21 22 24 28 19 30 1 6 1 14 30 8 MEAN QFF PRESSURE IN HPA 1019.1 1020.1 1012.8 1009.8 1007.0 1000.8 996.0 997.5 1003.6 1011.0 1017.7 1018.8 1009.5 MAX. QFF PRESSURE IN HPA 1024.4 1026.6 1018.1 1017.0 1012.5 1006.3 1001.4 1001.5 1008.0 1017.0 1023.5 1022.8 1026.6 DAY 19 1 16 23 3 11 12 18 30 31 23 26 MIN. QFF PRESSURE IN HPA 1012.3 1012.8 1002.5 1001.1 1001.2 993.3 992.5 993.3 999.1 1006.4 1009.7 1012.9 992.5 DAY 21 22 24 28 19 30 1 6 1 14 30 8 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1019.2 1020.2 1013.3 1010.2 1007.4 1001.1 996.3 997.9 1004.2 1011.2 1017.6 1018.8 1009.8 MAX. QFE PRESSURE IN HPA 1024.6 1025.2 1017.9 1017.4 1014.0 1006.9 1001.4 1001.9 1008.6 1017.5 1023.3 1023.1 1025.2 DAY 19 1 16 23 3 1 12 18 30 31 23 4 MIN. QFE PRESSURE IN HPA 1011.2 1012.8 1003.6 1000.3 1000.7 992.5 993.4 993.6 999.5 1006.8 1008.7 1013.1 992.5 DAY 21 22 22 28 19 30 2 6 8 11 30 8 MEAN QNH PRESSURE IN HPA 1019.7 1020.6 1013.8 1010.7 1007.9 1001.6 996.8 998.4 1004.7 1011.7 1018.1 1019.3 1010.3 MAX. QNH PRESSURE IN HPA 1025.1 1025.7 1018.4 1017.9 1014.5 1007.4 1001.9 1002.4 1009.1 1018.0 1023.8 1023.6 1025.7 DAY 19 1 16 23 3 1 12 18 30 31 23 4 MIN. QNH PRESSURE IN HPA 1011.7 1013.3 1004.1 1000.8 1001.2 993.0 993.9 994.1 1000.0 1007.3 1009.2 1013.6 993.0 DAY 21 22 22 28 19 30 2 6 8 11 30 8 MEAN QFF PRESSURE IN HPA 1020.0 1021.0 1014.1 1010.9 1008.1 1001.8 997.0 998.6 1004.9 1012.0 1018.4 1019.6 1010.5 MAX. QFF PRESSURE IN HPA 1025.4 1026.0 1018.7 1018.2 1014.8 1007.6 1002.1 1002.6 1009.3 1018.3 1024.1 1023.9 1026.0 DAY 19 1 16 23 3 1 12 18 30 31 23 4 MIN. QFF PRESSURE IN HPA 1012.0 1013.6 1004.3 1001.0 1001.4 993.2 994.1 994.3 1000.2 1007.5 1009.5 1013.9 993.2 DAY 21 22 22 28 19 30 2 6 8 11 30 8 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1019.0 1020.1 1013.2 1009.9 1007.2 1001.2 996.4 997.8 1004.0 1011.1 1017.3 1018.7 1009.7 MAX. QFE PRESSURE IN HPA 1024.0 1025.2 1018.5 1017.0 1015.1 1007.8 1001.4 1001.7 1008.6 1017.3 1022.6 1024.4 1025.2 DAY 19 1 16 23 3 11 11 18 19 31 23 5 MIN. QFE PRESSURE IN HPA 1011.4 1012.9 1005.3 1000.5 1001.1 993.1 993.2 994.0 998.9 1007.3 1007.4 1013.4 993.1 DAY 21 22 22 28 19 30 9 5 8 11 30 8 MEAN QNH PRESSURE IN HPA 1019.5 1020.6 1013.7 1010.4 1007.7 1001.7 996.9 998.2 1004.5 1011.5 1017.8 1019.2 1010.1 MAX. QNH PRESSURE IN HPA 1024.5 1025.7 1019.0 1017.5 1015.6 1008.3 1001.9 1002.2 1009.1 1017.8 1023.1 1024.9 1025.7 DAY 19 1 16 23 3 11 11 18 19 31 23 5 MIN. QNH PRESSURE IN HPA 1011.9 1013.4 1005.8 1001.0 1001.6 993.6 993.7 994.5 999.4 1007.8 1007.9 1013.9 993.6 DAY 21 22 22 28 19 30 9 5 8 11 30 8 MEAN QFF PRESSURE IN HPA 1019.8 1020.9 1014.0 1010.6 1007.9 1001.9 997.1 998.5 1004.8 1011.8 1018.1 1019.5 1010.4 MAX. QFF PRESSURE IN HPA 1024.8 1026.0 1019.3 1017.8 1015.8 1008.5 1002.1 1002.4 1009.3 1018.1 1023.4 1025.2 1026.0 DAY 19 1 16 23 3 11 11 18 19 31 23 5 MIN. QFF PRESSURE IN HPA 1012.2 1013.7 1006.0 1001.2 1001.8 993.8 993.9 994.7 999.6 1008.0 1008.2 1014.2 993.8 DAY 21 22 22 28 19 30 9 5 8 11 30 8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 12.7 11.2 18.3 26.6 30.4 35.2 35.8 34.9 31.1 27.0 18.1 12.5 24.5 MINIMUN AIR TEMPERATURE (C) 7.2 5.1 10.8 19.0 22.4 27.9 29.0 27.2 23.2 18.9 11.8 6.5 17.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 13 23 30 31 31 22 8 0 0 158 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 1 1 TEMPERATURE RECORDS LOWEST(C) 3.0 1.0 4.0 12.0 17.0 22.0 26.0 23.0 16.0 14.0 4.0 0.0 0.0 DAY 3 21 1 7 3 5 13 28 26 6 28 16 MAXIMUM AIR TEMPERATURE (C) 19.1 17.8 25.7 35.2 38.8 43.7 42.6 42.7 40.1 36.6 25.9 20.1 32.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 10 28 31 30 31 31 30 29 11 0 231 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 23.0 22.0 33.0 42.0 46.0 49.0 46.0 46.0 45.0 43.0 32.0 26.0 49.0 DAY 7 14 16 22 28 22 18 31 1 1 3 8 DIF. BETWEEN (MAX.-MIN.) (C) 11.9 12.7 14.9 16.2 16.4 15.8 13.6 15.5 16.9 17.7 14.1 13.6 15.0 MEAN DAILY TEMP. (MDT) (C) 13.1 11.4 18.3 27.1 30.6 35.8 35.8 35.0 31.6 27.8 18.9 13.3 24.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 21.0 186.0 298.5 445.0 459.5 432.5 319.0 210.5 13.5 0.0 2385.5 HEATING DEG. DAYS(BASE 18 0C) 150.5 183.5 55.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 37.5 146.0 572.5 DEWPOINT (MEAN C) 7.3 3.2 7.6 9.5 12.9 11.7 14.0 11.6 8.3 11.6 9.2 6.4 9.4 MIXING RATIO (G/KG) 6.52 5.01 6.74 7.70 9.60 9.04 10.31 8.89 7.07 8.91 7.50 6.19 7.79 VAPOUR PRESSURE (HPA) 10.56 8.11 10.86 12.34 15.27 14.33 16.24 14.04 11.25 14.26 12.09 10.04 12.45 SATURATION DEF. (HPA) 4.64 5.67 11.75 24.70 30.73 45.13 44.08 44.06 36.28 23.66 9.97 5.13 23.82 RELATIVE HUMIDITY (MEAN %) 73 62 55 39 38 28 29 26 26 42 61 70 46 RELATIVE HUMIDITY (MAX. %) 92 85 81 64 61 43 44 41 42 61 83 90 66 RELATIVE HUMIDITY (MIN. %) 46 39 32 19 20 14 18 14 13 24 36 44 27 RELATIVE HUMIDITY (MEAN% 03UTC) 89 81 78 61 56 38 41 36 38 57 78 87 62 RELATIVE HUMIDITY (MEAN% 09UTC) 57 44 37 23 23 17 21 17 16 31 43 53 32 RELATIVE HUMIDITY (MEAN% 15UTC) 63 51 43 27 29 22 23 20 21 34 54 62 37 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 24.2 9.0 8.1 10.0 3.6 0.0 0.0 0.0 0.0 0.3 20.2 27.0 102.4 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 1 1 2 DAYS WITH PRECIPITATION >= 5 2 1 1 1 0 0 0 0 0 0 2 1 8 DAYS WITH PRECIPITATION >= 1 8 2 1 2 1 0 0 0 0 0 3 1 18 DAYS WITH PRECIPITATION 11 3 5 3 3 0 0 0 0 1 5 1 32 GREATEST DAILY PRECIPITATION 7.0 7.0 8.0 9.0 3.0 0.0 0.0 0.0 0.0 0.3 11.0 27.0 27.0 DAY 15 28 22 6 10 ** ** ** ** 23 22 29 DAY WITH THUNDER STORM 2 1 1 0 3 0 0 0 0 0 0 3 10 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 1 7 10 3 7 20 19 23 17 4 0 1 112 WIND DIRECTION (PREVAILING) 270 315 315 315 315 315 315 270 315 315 315 270 315 PREVAILING WIND SPEED(KNOTS) 6.5 9.3 8.0 8.4 8.9 11.1 11.0 7.5 9.6 6.8 4.5 4.5 8.8 PREVAILING WIND PERCENT 23.4 28.6 25.4 37.1 32.0 54.8 50.8 54.7 58.2 40.9 25.9 25.0 36.2 CALMS PERCENT OF WIND 30.6 13.8 12.1 4.2 11.7 8.4 3.2 0.8 3.3 13.0 19.7 27.0 12.4 NO. OF WIND OBSERVATION 248 224 248 240 247 239 248 247 239 247 239 248 2914 VECTOR WIND DIRECTION (MEAN) 271 293 297 305 319 308 294 292 300 305 289 277 299 VECTOR WIND MAGNITUDE(KNOTS) 1.2 2.8 1.5 2.3 3.1 8.0 8.8 8.0 7.6 3.8 1.3 1.5 4.1 WIND STEADINESES (MEAN %) 24.0 42.4 21.7 31.9 46.3 89.9 96.7 95.2 93.8 73.1 32.5 44.1 62.1 WIND SPEED (MEAN KNOTS) 5.0 6.6 6.9 7.2 6.7 8.9 9.1 8.4 8.1 5.2 4.0 3.4 6.6 FASTEST WIND DIRECTION 140 300 80 330 330 330 320 300 320 310 340 150 330 FASTEST WIND SPEED (KNOTS) 24 20 20 26 26 20 25 20 18 18 16 16 26 DAY 19 6 21 6 31 1 18 24 1 5 21 20 DAYS WITH SKY CLEAR (0-2)/8 15 14 19 14 19 30 30 30 30 27 20 20 268 DAYS WITH P.CLOUDY (3-6)/8 13 14 10 11 5 0 0 1 0 4 7 8 73 DAYS WITH CLOUDY (7-8)/8 3 0 2 5 7 0 0 0 0 0 3 3 23 DAYS WITH VISIBILITY =< 2 KM 1 1 2 1 3 6 14 6 9 4 4 7 58 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1018.5 1017.4 1015.2 1010.5 1005.4 1001.2 996.7 997.4 1002.7 1011.2 1016.2 1020.5 1009.4 MAX. QFE PRESSURE IN HPA 1023.9 1026.4 1028.4 1022.0 1014.6 1008.6 1000.2 1003.4 1010.2 1017.3 1022.1 1029.9 1029.9 DAY-HOUR 14- 6 22- 6 9- 6 8- 6 1- 9 6- 6 5- 9 28- 6 26- 6 9- 6 26- 6 16- 6 MIN. QFE PRESSURE IN HPA 1011.2 1005.9 1004.9 1001.8 990.1 992.1 989.5 992.2 995.6 1005.1 1009.4 1013.6 989.5 DAY-HOUR 19-15 25- 0 26-12 14-12 18-12 28-15 3- 0 3-15 2-15 12- 0 13-12 28-21 MEAN QNH PRESSURE IN HPA 1019.0 1017.9 1015.7 1011.0 1005.9 1001.7 997.2 997.9 1003.2 1011.7 1016.7 1021.0 1009.9 MAX. QNH PRESSURE IN HPA 1024.4 1026.9 1028.9 1022.5 1015.1 1009.1 1000.7 1003.9 1010.7 1017.8 1022.6 1030.4 1030.4 DAY-HOUR 14- 6 22- 6 9- 6 8- 6 1- 9 6- 6 5- 9 28- 6 26- 6 9- 6 26- 6 16- 6 MIN. QNH PRESSURE IN HPA 1011.7 1006.4 1005.4 1002.3 990.6 992.6 990.0 992.7 996.1 1005.6 1009.9 1014.1 990.0 DAY-HOUR 19-15 25- 0 26-12 14-12 18-12 28-15 3- 0 3-15 2-15 12- 0 13-12 28-21 MEAN QFF PRESSURE IN HPA 1019.3 1018.2 1015.9 1011.3 1006.1 1001.9 997.4 998.1 1003.5 1012.0 1017.0 1021.3 1010.2 MAX. QFF PRESSURE IN HPA 1024.7 1027.2 1029.2 1022.8 1015.3 1009.3 1000.9 1004.1 1011.0 1018.1 1022.9 1030.7 1030.7 DAY-HOUR 14- 6 22- 6 9- 6 8- 6 1- 9 6- 6 5- 9 28- 6 26- 6 9- 6 26- 6 16- 6 MIN. QFF PRESSURE IN HPA 1012.0 1006.7 1005.7 1002.5 990.8 992.8 990.2 992.9 996.3 1005.8 1010.2 1014.4 990.2 DAY-HOUR 19-15 25- 0 26-12 14-12 18-12 28-15 3- 0 3-15 2-15 12- 0 13-12 28-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1018.3 1017.2 1014.8 1010.2 1004.7 1000.6 996.3 996.9 1002.3 1010.7 1015.8 1020.4 1009.0 MAX. QFE PRESSURE IN HPA 1022.3 1024.2 1026.1 1020.8 1011.0 1006.5 999.1 1001.8 1008.7 1016.2 1020.1 1028.3 1028.3 DAY 14 23 9 8 1 6 1 29 26 21 9 16 MIN. QFE PRESSURE IN HPA 1011.9 1005.9 1005.0 1004.5 997.7 992.9 989.5 993.3 997.0 1005.1 1011.0 1015.8 989.5 DAY 16 25 22 21 31 28 3 4 3 12 1 29 MEAN QNH PRESSURE IN HPA 1018.8 1017.7 1015.3 1010.7 1005.2 1001.1 996.8 997.3 1002.8 1011.1 1016.3 1020.9 1009.5 MAX. QNH PRESSURE IN HPA 1022.8 1024.7 1026.6 1021.3 1011.5 1007.0 999.6 1002.3 1009.2 1016.7 1020.6 1028.8 1028.8 DAY 14 23 9 8 1 6 1 29 26 21 9 16 MIN. QNH PRESSURE IN HPA 1012.4 1006.4 1005.5 1005.0 998.2 993.4 990.0 993.8 997.5 1005.6 1011.5 1016.3 990.0 DAY 16 25 22 21 31 28 3 4 3 12 1 29 MEAN QFF PRESSURE IN HPA 1019.1 1018.0 1015.6 1010.9 1005.4 1001.3 997.0 997.6 1003.1 1011.4 1016.6 1021.2 1009.8 MAX. QFF PRESSURE IN HPA 1023.1 1025.0 1026.9 1021.6 1011.7 1007.2 999.8 1002.5 1009.4 1016.9 1020.9 1029.1 1029.1 DAY 14 23 9 8 1 6 1 29 26 21 9 16 MIN. QFF PRESSURE IN HPA 1012.7 1006.7 1005.8 1005.2 998.4 993.6 990.2 994.0 997.7 1005.8 1011.8 1016.6 990.2 DAY 16 25 22 21 31 28 3 4 3 12 1 29 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1018.4 1017.4 1015.4 1010.7 1005.9 1001.4 997.0 997.5 1002.8 1011.3 1016.4 1020.7 1009.6 MAX. QFE PRESSURE IN HPA 1022.4 1024.4 1026.7 1021.1 1012.1 1007.6 999.8 1001.9 1008.8 1016.5 1021.0 1028.6 1028.6 DAY 14 22 9 8 1 6 1 28 26 21 9 16 MIN. QFE PRESSURE IN HPA 1012.2 1007.7 1006.5 1002.4 998.7 993.0 990.5 993.9 997.0 1006.6 1011.4 1015.9 990.5 DAY 16 25 22 6 31 28 3 4 2 12 1 10 MEAN QNH PRESSURE IN HPA 1018.9 1017.9 1015.9 1011.2 1006.4 1001.8 997.5 998.0 1003.3 1011.8 1016.8 1021.2 1010.1 MAX. QNH PRESSURE IN HPA 1022.9 1024.9 1027.2 1021.6 1012.6 1008.1 1000.3 1002.4 1009.3 1017.0 1021.5 1029.1 1029.1 DAY 14 22 9 8 1 6 1 28 26 21 9 16 MIN. QNH PRESSURE IN HPA 1012.7 1008.2 1007.0 1002.9 999.2 993.5 991.0 994.4 997.5 1007.1 1011.9 1016.4 991.0 DAY 16 25 22 6 31 28 3 4 2 12 1 10 MEAN QFF PRESSURE IN HPA 1019.2 1018.2 1016.2 1011.5 1006.6 1002.1 997.7 998.2 1003.6 1012.1 1017.1 1021.5 1010.3 MAX. QFF PRESSURE IN HPA 1023.2 1025.2 1027.5 1021.9 1012.8 1008.3 1000.5 1002.6 1009.6 1017.3 1021.8 1029.4 1029.4 DAY 14 22 9 8 1 6 1 28 26 21 9 16 MIN. QFF PRESSURE IN HPA 1013.0 1008.5 1007.3 1003.1 999.4 993.7 991.2 994.6 997.7 1007.4 1012.2 1016.7 991.2 DAY 20 25 22 6 31 28 3 4 2 12 1 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1019.9 1018.8 1016.6 1011.9 1006.9 1002.2 997.7 998.4 1003.8 1012.7 1017.6 1022.1 1010.7 MAX. QFE PRESSURE IN HPA 1023.9 1026.4 1028.4 1022.0 1014.3 1008.6 1000.1 1003.4 1010.2 1017.3 1022.1 1029.9 1029.9 DAY 14 22 9 8 1 6 1 28 26 9 26 16 MIN. QFE PRESSURE IN HPA 1012.8 1011.9 1007.3 1003.6 999.7 994.0 991.6 994.9 998.1 1008.1 1012.6 1017.7 991.6 DAY 16 8 26 6 30 28 3 3 2 12 1 29 MEAN QNH PRESSURE IN HPA 1020.4 1019.3 1017.1 1012.4 1007.4 1002.7 998.1 998.9 1004.3 1013.2 1018.1 1022.6 1011.2 MAX. QNH PRESSURE IN HPA 1024.4 1026.9 1028.9 1022.5 1014.8 1009.1 1000.6 1003.9 1010.7 1017.8 1022.6 1030.4 1030.4 DAY 14 22 9 8 1 6 1 28 26 9 26 16 MIN. QNH PRESSURE IN HPA 1013.3 1012.4 1007.8 1004.1 1000.2 994.5 992.1 995.4 998.6 1008.6 1013.1 1018.2 992.1 DAY 16 8 26 6 30 28 3 3 2 12 1 29 MEAN QFF PRESSURE IN HPA 1020.7 1019.6 1017.4 1012.7 1007.6 1002.9 998.4 999.1 1004.6 1013.4 1018.4 1022.9 1011.5 MAX. QFF PRESSURE IN HPA 1024.7 1027.2 1029.2 1022.8 1015.0 1009.3 1000.8 1004.1 1011.0 1018.1 1022.9 1030.7 1030.7 DAY 14 22 9 8 1 6 1 28 26 9 26 16 MIN. QFF PRESSURE IN HPA 1013.6 1012.7 1008.1 1004.3 1000.4 994.7 992.3 995.6 998.8 1008.8 1013.4 1018.5 992.3 DAY 16 8 26 6 30 28 3 3 2 12 1 29 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1018.9 1018.1 1015.9 1011.2 1006.3 1002.0 997.4 998.1 1003.2 1011.7 1016.5 1020.9 1010.0 MAX. QFE PRESSURE IN HPA 1023.4 1025.8 1027.2 1021.5 1014.6 1007.7 1000.2 1003.4 1008.9 1016.4 1021.2 1028.0 1028.0 DAY 26 22 9 7 1 3 5 28 26 25 26 16 MIN. QFE PRESSURE IN HPA 1012.1 1008.9 1006.7 1002.6 999.3 993.6 991.5 994.3 997.4 1007.0 1011.3 1016.8 991.5 DAY 20 8 26 6 28 28 3 4 2 12 1 10 MEAN QNH PRESSURE IN HPA 1019.4 1018.6 1016.4 1011.7 1006.8 1002.4 997.9 998.5 1003.7 1012.2 1017.0 1021.4 1010.5 MAX. QNH PRESSURE IN HPA 1023.9 1026.3 1027.7 1022.0 1015.1 1008.2 1000.7 1003.9 1009.4 1016.9 1021.7 1028.5 1028.5 DAY 26 22 9 7 1 3 5 28 26 25 26 16 MIN. QNH PRESSURE IN HPA 1012.6 1009.4 1007.2 1003.1 999.8 994.1 992.0 994.8 997.9 1007.5 1011.8 1017.3 992.0 DAY 20 8 26 6 28 28 3 4 2 12 1 10 MEAN QFF PRESSURE IN HPA 1019.7 1018.9 1016.7 1012.0 1007.1 1002.6 998.1 998.8 1004.1 1012.6 1017.5 1021.7 1010.8 MAX. QFF PRESSURE IN HPA 1024.2 1026.6 1028.0 1022.3 1015.3 1008.4 1000.9 1004.1 1009.6 1017.1 1022.0 1028.8 1028.8 DAY 26 22 9 7 1 6 5 28 26 25 26 16 MIN. QFF PRESSURE IN HPA 1012.9 1009.7 1007.5 1003.3 1000.0 994.3 992.2 995.0 998.1 1007.7 1012.1 1017.6 992.2 DAY 20 8 26 6 28 28 3 4 2 12 13 20 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1017.4 1016.1 1013.9 1009.8 1004.5 1000.8 996.2 997.1 1001.8 1010.2 1015.1 1019.5 1008.6 MAX. QFE PRESSURE IN HPA 1021.5 1023.5 1025.1 1019.6 1013.5 1007.0 999.0 1002.0 1007.9 1015.1 1019.8 1027.0 1027.0 DAY 26 22 9 7 1 6 13 28 25 25 26 16 MIN. QFE PRESSURE IN HPA 1011.7 1008.0 1004.9 1001.8 990.1 992.7 990.3 992.9 996.0 1005.6 1009.4 1015.8 990.1 DAY 20 8 26 14 18 28 3 3 2 12 13 10 MEAN QNH PRESSURE IN HPA 1017.9 1016.6 1014.4 1010.3 1005.0 1001.3 996.7 997.6 1002.3 1010.7 1015.6 1020.0 1009.0 MAX. QNH PRESSURE IN HPA 1022.0 1024.0 1025.6 1020.1 1014.0 1007.5 999.5 1002.5 1008.4 1015.6 1020.3 1027.5 1027.5 DAY 26 22 9 7 1 6 13 28 25 25 26 16 MIN. QNH PRESSURE IN HPA 1012.2 1008.5 1005.4 1002.3 990.6 993.2 990.8 993.4 996.5 1006.1 1009.9 1016.3 990.6 DAY 20 8 26 14 18 28 3 3 2 12 13 10 MEAN QFF PRESSURE IN HPA 1018.2 1016.9 1014.7 1010.6 1005.3 1001.6 997.0 997.8 1002.6 1011.0 1015.9 1020.3 1009.3 MAX. QFF PRESSURE IN HPA 1022.3 1024.3 1025.9 1020.4 1014.2 1007.7 999.7 1002.7 1008.6 1015.8 1020.6 1027.8 1027.8 DAY 26 22 9 7 1 6 13 28 25 25 26 16 MIN. QFF PRESSURE IN HPA 1012.5 1008.8 1005.7 1002.5 990.8 993.4 991.0 993.6 996.7 1006.3 1010.2 1016.6 990.8 DAY 20 8 26 14 18 28 3 3 2 12 13 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1017.8 1016.7 1014.1 1009.3 1004.3 1000.3 995.8 996.4 1001.8 1010.5 1015.6 1020.0 1008.6 MAX. QFE PRESSURE IN HPA 1022.3 1023.5 1024.7 1019.3 1012.3 1006.3 999.5 1001.2 1008.2 1015.4 1020.4 1026.9 1026.9 DAY 13 22 9 7 1 6 15 28 25 25 26 16 MIN. QFE PRESSURE IN HPA 1011.2 1008.2 1006.6 1004.6 997.2 992.1 990.1 992.2 995.6 1005.9 1009.7 1015.9 990.1 DAY 19 24 26 20 30 28 3 3 2 3 13 28 MEAN QNH PRESSURE IN HPA 1018.3 1017.1 1014.6 1009.8 1004.8 1000.8 996.3 996.9 1002.3 1011.0 1016.1 1020.5 1009.0 MAX. QNH PRESSURE IN HPA 1022.8 1024.0 1025.2 1019.8 1012.8 1006.8 1000.0 1001.7 1008.7 1015.9 1020.9 1027.4 1027.4 DAY 13 22 9 7 1 6 15 28 25 25 26 16 MIN. QNH PRESSURE IN HPA 1011.7 1008.7 1007.1 1005.1 997.7 992.6 990.6 992.7 996.1 1006.4 1010.2 1016.4 990.6 DAY 19 24 26 20 30 28 3 3 2 3 13 28 MEAN QFF PRESSURE IN HPA 1018.6 1017.5 1014.9 1010.1 1005.1 1001.1 996.5 997.2 1002.6 1011.2 1016.4 1020.8 1009.3 MAX. QFF PRESSURE IN HPA 1023.1 1024.3 1025.5 1020.1 1013.0 1007.0 1000.2 1001.9 1009.0 1016.2 1021.2 1027.7 1027.7 DAY 13 22 9 7 1 6 15 28 25 25 26 16 MIN. QFF PRESSURE IN HPA 1012.0 1009.0 1007.4 1005.3 997.9 992.8 990.8 992.9 996.3 1006.6 1010.5 1016.7 990.8 DAY 19 24 26 20 30 28 3 3 2 3 13 28 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1018.8 1017.7 1015.4 1010.5 1005.3 1001.1 996.4 997.5 1003.1 1011.5 1016.4 1020.6 1009.5 MAX. QFE PRESSURE IN HPA 1022.5 1025.0 1025.9 1021.1 1011.8 1007.2 999.3 1002.0 1009.3 1016.1 1020.7 1027.8 1027.8 DAY 13 22 9 7 1 6 5 28 25 25 26 16 MIN. QFE PRESSURE IN HPA 1012.4 1008.1 1007.9 1005.4 997.4 993.1 991.1 993.7 996.8 1006.7 1011.1 1016.3 991.1 DAY 19 24 30 17 30 28 2 3 2 11 13 28 MEAN QNH PRESSURE IN HPA 1019.3 1018.2 1015.9 1011.0 1005.8 1001.6 996.9 998.0 1003.5 1012.0 1016.9 1021.1 1010.0 MAX. QNH PRESSURE IN HPA 1023.0 1025.5 1026.4 1021.6 1012.3 1007.7 999.8 1002.5 1009.8 1016.6 1021.2 1028.3 1028.3 DAY 13 22 9 7 1 6 5 28 25 25 26 16 MIN. QNH PRESSURE IN HPA 1012.9 1008.6 1008.4 1005.9 997.9 993.6 991.6 994.2 997.3 1007.2 1011.6 1016.8 991.6 DAY 19 24 30 17 30 28 2 3 2 11 13 28 MEAN QFF PRESSURE IN HPA 1019.6 1018.5 1016.2 1011.3 1006.0 1001.9 997.1 998.2 1003.8 1012.2 1017.2 1021.4 1010.3 MAX. QFF PRESSURE IN HPA 1023.3 1025.8 1026.7 1021.9 1012.5 1007.9 1000.0 1002.7 1010.0 1016.9 1021.5 1028.6 1028.6 DAY 13 22 9 7 1 6 5 28 25 25 26 16 MIN. QFF PRESSURE IN HPA 1013.2 1008.9 1008.7 1006.1 998.1 993.8 991.8 994.4 997.5 1007.4 1011.9 1017.1 991.8 DAY 19 24 30 17 30 28 2 3 2 11 13 28 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1018.4 1017.6 1015.3 1010.6 1005.3 1001.1 996.7 997.3 1002.8 1011.3 1016.3 1020.4 1009.4 MAX. QFE PRESSURE IN HPA 1022.4 1024.8 1026.0 1021.3 1011.6 1007.2 999.3 1002.0 1009.2 1017.1 1020.7 1027.9 1027.9 DAY 13 22 8 7 1 6 13 28 25 26 26 15 MIN. QFE PRESSURE IN HPA 1012.9 1007.2 1005.8 1005.0 996.9 992.8 990.7 994.1 996.7 1005.9 1011.3 1013.6 990.7 DAY 19 24 21 5 30 27 2 3 1 11 1 28 MEAN QNH PRESSURE IN HPA 1018.9 1018.1 1015.8 1011.1 1005.8 1001.5 997.2 997.8 1003.3 1011.8 1016.8 1020.9 1009.9 MAX. QNH PRESSURE IN HPA 1022.9 1025.3 1026.5 1021.8 1012.1 1007.7 999.8 1002.5 1009.7 1017.6 1021.2 1028.4 1028.4 DAY 13 22 8 7 1 6 13 28 25 26 26 15 MIN. QNH PRESSURE IN HPA 1013.4 1007.7 1006.3 1005.5 997.4 993.3 991.2 994.6 997.2 1006.4 1011.8 1014.1 991.2 DAY 19 24 21 5 30 27 2 3 1 11 1 28 MEAN QFF PRESSURE IN HPA 1019.2 1018.4 1016.1 1011.4 1006.0 1001.8 997.4 998.0 1003.6 1012.0 1017.1 1021.2 1010.2 MAX. QFF PRESSURE IN HPA 1023.2 1025.6 1026.8 1022.1 1012.3 1007.9 1000.0 1002.7 1009.9 1017.8 1021.5 1028.7 1028.7 DAY 13 22 8 7 1 6 13 28 25 26 26 15 MIN. QFF PRESSURE IN HPA 1013.7 1008.0 1006.6 1005.7 997.6 993.5 991.4 994.8 997.4 1006.6 1012.1 1014.4 991.4 DAY 19 24 21 5 30 27 2 3 1 11 1 28 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 14.1 17.1 18.2 24.8 31.4 35.1 35.9 35.5 32.8 24.7 20.1 14.3 25.3 MINIMUN AIR TEMPERATURE (C) 8.8 11.1 11.8 18.6 23.6 27.0 28.5 27.0 24.0 15.7 14.3 8.8 18.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 9 25 30 31 30 30 1 3 0 159 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) 1.0 4.0 6.0 11.0 18.0 21.0 24.0 20.0 21.0 11.0 9.0 4.0 1.0 DAY 29 1 16 11 2 6 15 29 19 28 22 6 MAXIMUM AIR TEMPERATURE (C) 21.4 24.5 25.3 31.6 39.7 43.2 44.1 44.3 43.0 34.9 27.4 21.3 33.4 DAYS WITH MAXIMUM TEMP. >=30 0 4 2 23 31 30 31 31 30 30 9 0 221 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 27.0 32.0 32.0 37.0 48.0 46.0 49.0 49.0 46.0 40.0 33.0 25.0 49.0 DAY 17 29 31 24 29 14 30 20 10 5 2 7 DIF. BETWEEN (MAX.-MIN.) (C) 12.6 13.4 13.5 13.0 16.1 16.2 15.6 17.3 19.0 19.2 13.1 12.5 15.1 MEAN DAILY TEMP. (MDT) (C) 15.1 17.8 18.5 25.1 31.7 35.1 36.3 35.6 33.5 25.3 20.8 15.0 25.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 5.0 7.0 126.0 331.5 423.5 475.0 453.5 375.0 133.5 36.5 0.0 2366.5 HEATING DEG. DAYS(BASE 18 0C) 96.0 35.5 22.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9.0 92.5 255.0 DEWPOINT (MEAN C) 7.2 6.3 7.0 11.1 9.7 9.3 14.7 11.3 12.6 9.5 10.9 7.7 9.8 MIXING RATIO (G/KG) 6.66 6.17 6.53 8.51 7.91 7.74 11.40 8.73 9.71 7.57 8.54 6.61 8.01 VAPOUR PRESSURE (HPA) 10.78 9.98 10.50 13.63 12.64 12.29 17.89 13.81 15.41 12.17 13.74 10.71 12.79 SATURATION DEF. (HPA) 6.05 10.43 11.32 18.86 36.04 46.48 43.37 47.02 37.32 21.22 10.97 6.17 24.60 RELATIVE HUMIDITY (MEAN %) 67 54 53 46 31 24 33 27 35 43 59 67 45 RELATIVE HUMIDITY (MAX. %) 87 76 78 72 54 42 56 45 60 70 81 86 67 RELATIVE HUMIDITY (MIN. %) 41 29 30 26 13 10 15 12 13 18 35 43 24 RELATIVE HUMIDITY (MEAN% 03UTC) 83 72 73 67 48 35 51 42 55 67 77 84 63 RELATIVE HUMIDITY (MEAN% 09UTC) 50 36 37 32 16 13 19 14 16 24 42 49 29 RELATIVE HUMIDITY (MEAN% 15UTC) 59 41 40 33 19 16 21 18 25 32 53 63 35 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 15.1 1.6 22.0 17.2 0.0 0.0 0.0 0.0 0.0 0.0 9.1 22.0 87.0 DAYS WITH PRECIPITATION >=10 0 0 1 1 0 0 0 0 0 0 0 1 3 DAYS WITH PRECIPITATION >= 5 2 0 3 1 0 0 0 0 0 0 1 1 8 DAYS WITH PRECIPITATION >= 1 2 1 5 3 0 0 0 0 0 0 2 1 14 DAYS WITH PRECIPITATION 4 2 6 4 0 0 0 0 0 0 4 1 21 GREATEST DAILY PRECIPITATION 8.0 1.0 10.0 11.0 0.0 0.0 0.0 0.0 0.0 0.0 5.0 22.0 22.0 DAY 7 18 11 10 ** ** ** ** ** ** 18 8 DAY WITH THUNDER STORM 1 0 4 5 0 0 0 0 0 0 1 1 12 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 1 5 4 7 11 25 17 23 8 7 0 4 112 WIND DIRECTION (PREVAILING) 315 315 315 315 315 315 270 315 315 270 315 315 315 PREVAILING WIND SPEED(KNOTS) 7.5 6.8 6.4 7.1 8.2 10.1 6.4 9.4 7.3 4.4 5.8 5.6 7.8 PREVAILING WIND PERCENT 31.9 32.9 25.8 21.8 37.2 55.0 35.9 44.4 35.4 37.5 26.7 33.1 33.8 CALMS PERCENT OF WIND 19.0 13.4 19.4 18.4 10.1 4.6 9.3 10.1 15.4 15.7 10.0 17.7 13.6 NO. OF WIND OBSERVATION 248 231 248 239 247 240 248 248 240 248 240 248 2925 VECTOR WIND DIRECTION (MEAN) 297 292 300 253 303 304 286 297 299 293 270 297 296 VECTOR WIND MAGNITUDE(KNOTS) 2.1 1.9 0.7 0.6 4.5 8.1 4.5 6.0 3.3 3.4 1.1 2.8 3.2 WIND STEADINESES (MEAN %) 38.9 32.2 12.7 10.5 72.6 91.0 70.3 88.2 66.0 82.9 21.2 63.6 55.2 WIND SPEED (MEAN KNOTS) 5.4 5.9 5.5 5.7 6.2 8.9 6.4 6.8 5.0 4.1 5.2 4.4 5.8 FASTEST WIND DIRECTION 150 130 130 340 300 330 310 330 330 300 130 40 130 FASTEST WIND SPEED (KNOTS) 20 20 34 20 20 33 24 20 16 15 18 20 34 DAY 2 3 22 6 30 15 6 1 1 8 3 8 DAYS WITH SKY CLEAR (0-2)/8 24 19 17 11 20 30 29 31 30 28 15 18 272 DAYS WITH P.CLOUDY (3-6)/8 6 7 11 10 9 0 1 0 0 3 11 10 68 DAYS WITH CLOUDY (7-8)/8 1 3 3 9 2 0 0 0 0 0 4 3 25 DAYS WITH VISIBILITY =< 2 KM 3 4 0 4 5 12 13 11 5 0 1 3 61 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1019.5 1017.5 1013.1 1010.5 1007.4 1001.4 996.6 998.0 1004.3 1013.2 1016.7 1019.1 1009.8 MAX. QFE PRESSURE IN HPA 1024.8 1025.4 1018.9 1017.1 1015.8 1008.4 1002.4 1005.0 1011.8 1019.5 1023.0 1024.4 1025.4 DAY-HOUR 12- 6 1- 6 18- 6 6- 9 1- 6 4- 6 17- 6 31- 6 30- 6 23- 6 21- 6 6- 6 MIN. QFE PRESSURE IN HPA 1008.5 1005.2 1001.3 1003.8 1001.5 992.5 992.7 993.1 997.0 1007.8 1011.1 1010.2 992.5 DAY-HOUR 6-21 29-12 11-12 18-15 29-15 29-15 2-15 28-21 2-15 12-12 19-12 19-15 MEAN QNH PRESSURE IN HPA 1020.0 1018.0 1013.6 1011.0 1007.9 1001.8 997.1 998.5 1004.7 1013.6 1017.2 1019.6 1010.2 MAX. QNH PRESSURE IN HPA 1025.3 1025.9 1019.4 1017.6 1016.3 1008.9 1002.9 1005.5 1012.3 1020.0 1023.5 1024.9 1025.9 DAY-HOUR 12- 6 1- 6 18- 6 6- 9 1- 6 4- 6 17- 6 31- 6 30- 6 23- 6 21- 6 6- 6 MIN. QNH PRESSURE IN HPA 1009.0 1005.7 1001.8 1004.3 1002.0 993.0 993.2 993.6 997.5 1008.3 1011.6 1010.7 993.0 DAY-HOUR 6-21 29-12 11-12 18-15 29-15 29-15 2-15 28-21 2-15 12-12 19-12 19-15 MEAN QFF PRESSURE IN HPA 1020.3 1018.3 1013.8 1011.3 1008.1 1002.1 997.3 998.7 1005.0 1013.9 1017.5 1019.9 1010.5 MAX. QFF PRESSURE IN HPA 1025.6 1026.2 1019.7 1017.9 1016.6 1009.1 1003.1 1005.7 1012.5 1020.3 1023.8 1025.2 1026.2 DAY-HOUR 12- 6 1- 6 18- 6 6- 9 1- 6 4- 6 17- 6 31- 6 30- 6 23- 6 21- 6 6- 6 MIN. QFF PRESSURE IN HPA 1009.3 1005.9 1002.1 1004.5 1002.2 993.2 993.4 993.8 997.7 1008.5 1011.9 1011.0 993.2 DAY-HOUR 6-21 29-12 11-12 18-15 29-15 29-15 2-15 28-21 2-15 12-12 19-12 19-15 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1019.4 1017.3 1012.2 1010.0 1007.1 1001.3 996.3 997.5 1003.6 1012.7 1016.4 1019.1 1009.4 MAX. QFE PRESSURE IN HPA 1023.3 1023.4 1017.5 1015.7 1014.6 1007.5 1000.7 1002.1 1009.7 1017.4 1021.2 1022.2 1023.4 DAY 12 2 19 7 1 4 17 29 30 25 21 6 MIN. QFE PRESSURE IN HPA 1010.7 1006.9 1005.6 1006.3 1001.8 993.0 992.8 993.9 997.1 1008.0 1011.7 1012.2 992.8 DAY 7 29 2 10 30 30 2 1 3 7 2 20 MEAN QNH PRESSURE IN HPA 1019.9 1017.8 1012.7 1010.5 1007.6 1001.7 996.7 998.0 1004.1 1013.2 1016.9 1019.6 1009.9 MAX. QNH PRESSURE IN HPA 1023.8 1023.9 1018.0 1016.2 1015.1 1008.0 1001.2 1002.6 1010.2 1017.9 1021.7 1022.7 1023.9 DAY 12 2 19 7 1 4 17 29 30 25 21 6 MIN. QNH PRESSURE IN HPA 1011.2 1007.4 1006.1 1006.8 1002.3 993.5 993.3 994.4 997.6 1008.5 1012.2 1012.7 993.3 DAY 7 29 2 10 30 30 2 1 3 7 2 20 MEAN QFF PRESSURE IN HPA 1020.2 1018.0 1013.0 1010.7 1007.8 1002.0 997.0 998.2 1004.4 1013.4 1017.1 1019.9 1010.1 MAX. QFF PRESSURE IN HPA 1024.1 1024.2 1018.3 1016.5 1015.4 1008.2 1001.4 1002.8 1010.4 1018.2 1022.0 1023.0 1024.2 DAY 12 2 19 7 1 4 17 29 30 25 21 6 MIN. QFF PRESSURE IN HPA 1011.5 1007.7 1006.4 1007.1 1002.5 993.7 993.5 994.6 997.8 1008.7 1012.5 1013.0 993.5 DAY 7 29 2 10 30 30 2 1 3 7 2 20 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1019.5 1017.7 1013.2 1010.5 1007.8 1001.7 996.7 998.2 1004.4 1013.3 1017.0 1019.4 1010.0 MAX. QFE PRESSURE IN HPA 1023.0 1023.7 1017.8 1016.3 1015.1 1007.5 1001.6 1003.8 1010.4 1018.2 1021.7 1023.1 1023.7 DAY 12 1 19 7 1 2 17 31 30 23 21 6 MIN. QFE PRESSURE IN HPA 1008.5 1007.9 1006.7 1006.7 1003.2 994.0 993.5 994.9 997.7 1009.2 1012.2 1013.0 993.5 DAY 7 29 2 4 27 30 2 1 3 7 2 20 MEAN QNH PRESSURE IN HPA 1020.0 1018.2 1013.7 1011.0 1008.3 1002.2 997.2 998.7 1004.9 1013.8 1017.5 1019.9 1010.4 MAX. QNH PRESSURE IN HPA 1023.5 1024.2 1018.3 1016.8 1015.6 1008.0 1002.1 1004.3 1010.9 1018.7 1022.2 1023.6 1024.2 DAY 12 1 19 7 1 2 17 31 30 23 21 6 MIN. QNH PRESSURE IN HPA 1009.0 1008.4 1007.2 1007.2 1003.7 994.5 994.0 995.4 998.2 1009.7 1012.7 1013.5 994.0 DAY 7 29 2 4 27 30 2 1 3 7 2 20 MEAN QFF PRESSURE IN HPA 1020.3 1018.5 1013.9 1011.3 1008.5 1002.4 997.4 999.0 1005.1 1014.1 1017.8 1020.1 1010.7 MAX. QFF PRESSURE IN HPA 1023.8 1024.5 1018.6 1017.1 1015.9 1008.2 1002.3 1004.5 1011.1 1019.0 1022.5 1023.9 1024.5 DAY 29 1 19 7 1 2 17 31 30 23 21 6 MIN. QFF PRESSURE IN HPA 1009.3 1008.7 1007.5 1007.5 1003.9 994.7 994.2 995.6 998.4 1009.9 1013.0 1013.8 994.2 DAY 7 29 2 4 30 30 2 1 3 7 2 20 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1021.0 1019.1 1014.5 1012.0 1008.6 1002.2 997.6 999.1 1005.7 1014.6 1018.2 1020.7 1011.1 MAX. QFE PRESSURE IN HPA 1024.8 1025.4 1018.9 1016.8 1015.8 1008.4 1002.4 1005.0 1011.8 1019.5 1023.0 1024.4 1025.4 DAY 12 1 18 7 1 4 17 31 30 23 21 6 MIN. QFE PRESSURE IN HPA 1009.9 1007.9 1007.1 1008.1 1003.5 994.3 993.8 996.4 999.2 1010.1 1013.6 1014.2 993.8 DAY 7 29 2 10 29 30 2 11 3 7 2 20 MEAN QNH PRESSURE IN HPA 1021.5 1019.6 1015.0 1012.5 1009.1 1002.7 998.0 999.6 1006.2 1015.1 1018.7 1021.2 1011.6 MAX. QNH PRESSURE IN HPA 1025.3 1025.9 1019.4 1017.3 1016.3 1008.9 1002.9 1005.5 1012.3 1020.0 1023.5 1024.9 1025.9 DAY 12 1 18 7 1 4 17 31 30 23 21 6 MIN. QNH PRESSURE IN HPA 1010.4 1008.4 1007.6 1008.6 1004.0 994.8 994.3 996.9 999.7 1010.6 1014.1 1014.7 994.3 DAY 7 29 2 10 29 30 2 11 3 7 2 20 MEAN QFF PRESSURE IN HPA 1021.8 1019.8 1015.3 1012.7 1009.3 1002.9 998.3 999.9 1006.4 1015.4 1019.0 1021.5 1011.9 MAX. QFF PRESSURE IN HPA 1025.6 1026.2 1019.7 1017.6 1016.6 1009.1 1003.1 1005.7 1012.5 1020.3 1023.8 1025.2 1026.2 DAY 12 1 18 7 1 4 17 31 30 23 21 6 MIN. QFF PRESSURE IN HPA 1010.7 1008.7 1007.9 1008.9 1004.2 995.0 994.5 997.1 999.9 1010.8 1014.4 1015.0 994.5 DAY 7 29 2 10 29 30 2 11 3 7 2 20 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1019.9 1018.4 1013.9 1011.5 1008.1 1002.0 997.3 998.8 1005.0 1013.7 1016.9 1019.2 1010.4 MAX. QFE PRESSURE IN HPA 1023.6 1024.7 1018.8 1017.1 1015.2 1007.6 1001.7 1004.4 1010.5 1018.9 1021.9 1022.7 1024.7 DAY 29 1 18 6 1 4 17 28 30 24 21 6 MIN. QFE PRESSURE IN HPA 1010.0 1006.5 1004.4 1006.3 1003.3 994.5 993.9 995.6 999.1 1009.3 1012.1 1013.0 993.9 DAY 7 29 11 18 29 30 2 1 3 12 2 29 MEAN QNH PRESSURE IN HPA 1020.4 1018.9 1014.4 1012.0 1008.5 1002.5 997.8 999.2 1005.5 1014.2 1017.4 1019.7 1010.9 MAX. QNH PRESSURE IN HPA 1024.1 1025.2 1019.3 1017.6 1015.7 1008.1 1002.2 1004.9 1011.0 1019.4 1022.4 1023.2 1025.2 DAY 29 1 18 6 1 4 17 28 30 24 21 6 MIN. QNH PRESSURE IN HPA 1010.5 1007.0 1004.9 1006.8 1003.8 995.0 994.4 996.1 999.6 1009.8 1012.6 1013.5 994.4 DAY 7 29 11 18 29 30 2 1 3 12 2 29 MEAN QFF PRESSURE IN HPA 1020.7 1019.1 1014.8 1012.2 1008.6 1002.5 998.0 999.5 1005.8 1014.4 1017.7 1020.0 1011.1 MAX. QFF PRESSURE IN HPA 1024.4 1025.5 1019.6 1017.9 1014.5 1008.3 1002.4 1005.1 1011.2 1019.7 1022.7 1023.5 1025.5 DAY 29 1 18 6 2 4 17 28 30 24 21 6 MIN. QFF PRESSURE IN HPA 1010.8 1007.3 1005.2 1007.0 1004.0 995.2 994.6 996.3 999.8 1010.0 1012.9 1013.8 994.6 DAY 7 29 11 18 29 30 2 1 3 12 2 29 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1018.4 1016.4 1012.0 1009.6 1006.8 1000.9 996.2 997.5 1003.5 1012.2 1015.5 1018.1 1008.9 MAX. QFE PRESSURE IN HPA 1021.9 1022.7 1016.9 1015.7 1014.4 1006.3 1000.4 1003.2 1009.2 1017.1 1020.3 1021.4 1022.7 DAY 28 1 15 6 1 4 17 28 30 24 21 5 MIN. QFE PRESSURE IN HPA 1009.4 1005.2 1001.3 1004.4 1002.0 993.0 993.0 994.4 997.4 1007.8 1011.1 1011.0 993.0 DAY 7 29 11 18 29 29 2 1 3 12 19 29 MEAN QNH PRESSURE IN HPA 1018.9 1016.9 1012.5 1010.1 1007.2 1001.4 996.7 998.0 1004.0 1012.7 1016.0 1018.6 1009.4 MAX. QNH PRESSURE IN HPA 1022.4 1023.2 1017.4 1016.2 1014.9 1006.8 1000.9 1003.7 1009.7 1017.6 1020.8 1021.9 1023.2 DAY 28 1 15 6 1 4 17 28 30 24 21 5 MIN. QNH PRESSURE IN HPA 1009.9 1005.7 1001.8 1004.9 1002.5 993.5 993.5 994.9 997.9 1008.3 1011.6 1011.5 993.5 DAY 7 29 11 18 29 29 2 1 3 12 19 29 MEAN QFF PRESSURE IN HPA 1019.2 1017.1 1012.8 1010.4 1007.5 1001.6 996.9 998.2 1004.3 1012.9 1016.3 1018.9 1009.7 MAX. QFF PRESSURE IN HPA 1022.7 1023.5 1017.7 1016.5 1015.2 1007.0 1001.1 1003.9 1009.9 1017.9 1021.1 1022.2 1023.5 DAY 28 1 15 6 1 4 17 28 30 24 21 5 MIN. QFF PRESSURE IN HPA 1010.2 1005.9 1002.1 1005.1 1002.7 993.7 993.7 995.1 998.1 1008.5 1011.9 1011.8 993.7 DAY 7 29 11 18 29 29 2 1 3 12 19 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1018.7 1016.4 1012.1 1009.3 1006.3 1000.4 995.6 997.1 1003.4 1012.4 1016.0 1018.5 1008.9 MAX. QFE PRESSURE IN HPA 1022.4 1023.0 1017.2 1015.7 1013.9 1005.8 999.4 1002.8 1009.2 1017.6 1020.5 1022.0 1023.0 DAY 30 1 18 6 1 4 16 28 30 24 21 5 MIN. QFE PRESSURE IN HPA 1011.9 1007.2 1001.7 1003.8 1001.5 992.5 992.7 994.3 997.0 1008.5 1011.5 1010.2 992.5 DAY 6 29 11 18 29 29 2 1 2 12 19 19 MEAN QNH PRESSURE IN HPA 1019.2 1016.9 1012.6 1009.8 1006.8 1000.9 996.1 997.6 1003.9 1012.9 1016.5 1019.0 1009.3 MAX. QNH PRESSURE IN HPA 1022.9 1023.5 1017.7 1016.2 1014.4 1006.3 999.9 1003.3 1009.7 1018.1 1021.0 1022.5 1023.5 DAY 30 1 18 6 1 4 16 28 30 24 21 5 MIN. QNH PRESSURE IN HPA 1012.4 1007.7 1002.2 1004.3 1002.0 993.0 993.2 994.8 997.5 1009.0 1012.0 1010.7 993.0 DAY 6 29 11 18 29 29 2 1 2 12 19 19 MEAN QFF PRESSURE IN HPA 1019.5 1017.2 1012.9 1010.1 1007.1 1001.2 996.3 997.8 1004.1 1013.2 1016.7 1019.3 1009.6 MAX. QFF PRESSURE IN HPA 1023.2 1023.8 1018.0 1016.5 1014.7 1006.5 1000.1 1003.5 1009.9 1018.4 1021.3 1022.8 1023.8 DAY 30 1 18 6 1 4 16 28 30 24 21 5 MIN. QFF PRESSURE IN HPA 1012.7 1008.0 1002.5 1004.5 1002.2 993.2 993.4 995.0 997.7 1009.3 1012.3 1011.0 993.2 DAY 7 29 11 18 29 29 2 1 2 12 19 19 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1019.6 1017.4 1013.4 1010.7 1007.3 1001.2 996.5 998.1 1004.4 1013.3 1016.8 1019.3 1009.8 MAX. QFE PRESSURE IN HPA 1023.3 1022.9 1018.6 1016.8 1014.4 1007.5 1000.6 1003.3 1010.6 1018.3 1021.3 1022.8 1023.3 DAY 31 1 18 6 1 3 16 28 30 24 30 5 MIN. QFE PRESSURE IN HPA 1010.6 1009.6 1003.8 1005.0 1002.4 993.2 993.6 995.3 998.6 1009.5 1012.5 1011.2 993.2 DAY 6 29 11 18 29 29 2 6 2 5 19 19 MEAN QNH PRESSURE IN HPA 1020.1 1017.9 1013.8 1011.2 1007.8 1001.7 997.0 998.6 1004.9 1013.8 1017.3 1019.8 1010.3 MAX. QNH PRESSURE IN HPA 1023.8 1023.4 1019.1 1017.3 1014.9 1008.0 1001.1 1003.8 1011.1 1018.8 1021.8 1023.3 1023.8 DAY 31 1 18 6 1 3 16 28 30 24 30 5 MIN. QNH PRESSURE IN HPA 1011.1 1010.1 1004.3 1005.5 1002.9 993.7 994.1 995.8 999.1 1010.0 1013.0 1011.7 993.7 DAY 6 29 11 18 29 29 2 6 2 5 19 19 MEAN QFF PRESSURE IN HPA 1020.4 1018.2 1014.1 1011.4 1008.0 1001.9 997.2 998.9 1005.2 1014.1 1017.5 1020.1 1010.6 MAX. QFF PRESSURE IN HPA 1024.1 1023.7 1019.4 1017.6 1015.2 1008.2 1001.3 1004.0 1011.3 1019.1 1022.1 1023.6 1024.1 DAY 31 1 18 6 1 3 16 28 30 24 30 5 MIN. QFF PRESSURE IN HPA 1011.4 1010.4 1004.6 1005.7 1003.1 993.9 994.3 996.0 999.3 1010.2 1013.3 1012.0 993.9 DAY 6 29 11 18 29 29 2 6 2 5 19 19 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1019.5 1017.5 1013.4 1010.6 1007.4 1001.3 996.5 997.8 1004.2 1013.1 1016.8 1019.0 1009.8 MAX. QFE PRESSURE IN HPA 1023.7 1023.5 1018.2 1016.5 1014.5 1008.1 1001.0 1002.5 1010.3 1018.2 1021.4 1022.3 1023.7 DAY 31 1 18 6 1 3 16 30 30 24 30 5 MIN. QFE PRESSURE IN HPA 1008.5 1008.7 1005.2 1005.5 1001.8 993.2 993.6 993.1 998.0 1008.5 1012.7 1011.4 993.1 DAY 6 28 11 18 29 29 1 28 2 6 1 19 MEAN QNH PRESSURE IN HPA 1020.0 1018.0 1013.9 1011.1 1007.8 1001.8 997.0 998.3 1004.6 1013.6 1017.3 1019.5 1010.2 MAX. QNH PRESSURE IN HPA 1024.2 1024.0 1018.7 1017.0 1015.0 1008.6 1001.5 1003.0 1010.8 1018.7 1021.9 1022.8 1024.2 DAY 31 1 18 6 1 3 16 30 30 24 30 5 MIN. QNH PRESSURE IN HPA 1009.0 1009.2 1005.7 1006.0 1002.3 993.7 994.1 993.6 998.5 1009.0 1013.2 1011.9 993.6 DAY 6 28 11 18 29 29 1 28 2 6 1 19 MEAN QFF PRESSURE IN HPA 1020.2 1018.3 1014.1 1011.4 1008.1 1002.0 997.3 998.5 1004.9 1013.9 1017.6 1019.8 1010.5 MAX. QFF PRESSURE IN HPA 1024.5 1024.3 1019.0 1017.3 1015.3 1008.8 1001.7 1003.2 1011.0 1019.0 1022.2 1023.1 1024.5 DAY 31 1 18 6 1 3 16 30 30 24 30 5 MIN. QFF PRESSURE IN HPA 1009.3 1009.5 1006.0 1006.2 1002.5 993.9 994.3 993.8 998.7 1009.2 1013.5 1012.2 993.8 DAY 6 28 11 18 29 29 1 28 2 6 1 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 13.1 14.9 17.3 23.2 30.6 35.3 35.7 37.2 30.1 25.0 18.3 14.3 24.6 MINIMUN AIR TEMPERATURE (C) 8.6 8.9 11.6 16.8 22.7 27.0 28.3 27.7 20.9 15.7 12.7 8.4 17.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 7 25 30 31 31 14 1 0 0 139 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) 4.0 4.0 7.0 11.0 18.0 23.0 25.0 24.0 16.0 12.0 2.0 3.0 2.0 DAY 23 1 4 3 3 2 12 1 29 5 27 1 MAXIMUM AIR TEMPERATURE (C) 18.0 20.8 23.7 30.1 39.2 44.2 44.0 46.1 39.7 36.2 25.5 21.7 32.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 2 17 31 30 31 31 30 31 7 0 210 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 23.0 25.0 30.0 39.0 44.0 48.0 46.0 48.0 44.0 40.0 33.0 27.0 48.0 DAY 1 12 24 27 16 11 18 10 1 14 6 6 DIF. BETWEEN (MAX.-MIN.) (C) 9.4 11.9 12.1 13.3 16.5 17.2 15.7 18.4 18.8 20.5 12.8 13.3 15.0 MEAN DAILY TEMP. (MDT) (C) 13.3 14.8 17.7 23.5 31.0 35.6 36.2 36.9 30.3 25.9 19.1 15.0 24.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 4.5 89.0 308.5 438.5 470.5 492.0 278.5 152.5 33.5 0.0 2267.5 HEATING DEG. DAYS(BASE 18 0C) 146.0 91.5 41.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 48.0 92.5 419.0 DEWPOINT (MEAN C) 8.3 7.5 7.0 11.4 9.9 10.5 13.8 11.4 6.2 7.7 10.1 7.4 9.3 MIXING RATIO (G/KG) 6.99 6.60 6.53 8.72 7.99 8.33 10.99 8.89 6.09 7.06 8.35 6.55 7.76 VAPOUR PRESSURE (HPA) 11.30 10.68 10.53 13.96 12.74 13.21 17.21 14.03 9.72 11.33 13.44 10.59 12.39 SATURATION DEF. (HPA) 4.19 6.80 9.96 15.90 33.36 46.92 43.35 52.73 35.42 22.75 9.09 6.38 23.90 RELATIVE HUMIDITY (MEAN %) 75 65 56 52 32 26 32 25 25 41 62 66 46 RELATIVE HUMIDITY (MAX. %) 89 89 79 77 57 45 51 45 45 68 84 86 68 RELATIVE HUMIDITY (MIN. %) 54 40 34 29 14 11 16 10 10 14 36 41 26 RELATIVE HUMIDITY (MEAN% 03UTC) 86 87 77 74 52 42 44 42 43 60 80 81 64 RELATIVE HUMIDITY (MEAN% 09UTC) 62 48 40 35 17 14 20 14 13 19 43 50 31 RELATIVE HUMIDITY (MEAN% 15UTC) 69 53 45 39 19 16 23 19 18 29 55 59 37 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 58.9 19.8 23.2 15.0 0.0 0.0 0.0 0.0 0.0 0.0 6.6 10.0 133.5 DAYS WITH PRECIPITATION >=10 3 1 1 0 0 0 0 0 0 0 0 0 5 DAYS WITH PRECIPITATION >= 5 5 1 3 2 0 0 0 0 0 0 0 1 12 DAYS WITH PRECIPITATION >= 1 7 2 4 4 0 0 0 0 0 0 3 3 23 DAYS WITH PRECIPITATION 10 4 7 7 0 0 0 0 0 0 5 5 38 GREATEST DAILY PRECIPITATION 15.0 18.0 10.0 7.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 5.0 18.0 DAY 20 2 19 6 ** ** ** ** ** ** 9 13 DAY WITH THUNDER STORM 4 1 3 2 1 0 0 0 0 0 2 3 16 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 4 9 2 11 14 22 10 17 3 3 1 96 WIND DIRECTION (PREVAILING) 315 270 315 315 315 315 315 315 315 315 270 315 315 PREVAILING WIND SPEED(KNOTS) 7.9 5.5 9.3 7.3 8.7 11.5 11.3 9.4 10.7 6.9 5.3 6.7 9.3 PREVAILING WIND PERCENT 35.3 26.4 34.7 21.7 47.2 57.1 44.6 43.0 57.9 29.4 22.9 29.4 36.5 CALMS PERCENT OF WIND 14.5 12.0 6.0 2.9 3.6 4.6 1.7 2.5 1.3 14.9 10.8 11.7 7.2 NO. OF WIND OBSERVATION 235 216 248 240 248 240 240 200 240 248 240 248 2843 VECTOR WIND DIRECTION (MEAN) 294 252 309 184 308 314 296 301 302 292 305 296 301 VECTOR WIND MAGNITUDE(KNOTS) 1.4 0.8 2.5 0.8 4.4 7.5 6.0 4.8 8.2 2.8 1.7 2.4 3.5 WIND STEADINESES (MEAN %) 21.5 12.5 33.3 11.6 62.9 81.5 70.6 68.6 93.2 57.1 30.4 44.4 50.0 WIND SPEED (MEAN KNOTS) 6.5 6.4 7.5 6.9 7.0 9.2 8.5 7.0 8.8 4.9 5.6 5.4 7.0 FASTEST WIND DIRECTION 140 130 290 210 300 330 330 330 320 330 100 150 330 FASTEST WIND SPEED (KNOTS) 30 22 26 30 20 35 20 26 26 18 18 18 35 DAY 19 8 12 29 21 6 5 20 26 1 11 13 DAYS WITH SKY CLEAR (0-2)/8 12 15 15 16 27 30 30 29 30 29 16 18 267 DAYS WITH P.CLOUDY (3-6)/8 7 9 6 7 3 0 1 2 0 2 11 8 56 DAYS WITH CLOUDY (7-8)/8 12 4 10 7 1 0 0 0 0 0 3 5 42 DAYS WITH VISIBILITY =< 2 KM 2 4 7 1 5 7 14 5 9 4 2 1 61 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1019.2 1017.1 1015.2 1010.9 1005.9 1000.6 995.3 997.0 1003.0 1011.6 1017.7 1017.9 1009.3 MAX. QFE PRESSURE IN HPA 1025.8 1023.8 1026.0 1016.2 1014.5 1006.3 1000.0 1001.2 1008.6 1019.0 1028.0 1026.1 1028.0 DAY-HOUR 24-18 22- 6 3- 6 20- 6 1- 6 11- 6 25- 6 25- 6 30- 6 24- 6 30- 6 1- 6 MIN. QFE PRESSURE IN HPA 1007.6 1008.5 1003.4 1004.4 1000.3 994.1 991.4 993.2 998.1 1004.4 1008.5 1007.7 991.4 DAY-HOUR 20-21 2- 3 12-12 8-12 12-21 30-12 17-15 6-15 1- 0 3- 0 22-12 21-15 MEAN QNH PRESSURE IN HPA 1019.7 1017.6 1015.7 1011.4 1006.4 1001.1 995.8 997.5 1003.4 1012.1 1018.1 1018.4 1009.8 MAX. QNH PRESSURE IN HPA 1026.3 1024.3 1026.5 1016.7 1015.0 1006.8 1000.5 1001.7 1009.1 1019.5 1028.5 1026.6 1028.5 DAY-HOUR 24-18 22- 6 3- 6 20- 6 1- 6 11- 6 25- 6 25- 6 30- 6 24- 6 30- 6 1- 6 MIN. QNH PRESSURE IN HPA 1008.1 1009.0 1003.9 1004.9 1000.8 994.6 991.9 993.7 998.6 1004.9 1009.0 1008.2 991.9 DAY-HOUR 20-21 2- 3 12-12 8-12 12-21 30-12 17-15 6-15 1- 0 3- 0 22-12 21-15 MEAN QFF PRESSURE IN HPA 1020.2 1017.9 1016.0 1011.7 1006.7 1001.3 996.0 997.8 1003.7 1012.4 1018.4 1018.7 1010.1 MAX. QFF PRESSURE IN HPA 1026.6 1024.6 1026.8 1017.0 1015.3 1007.0 1000.7 1001.9 1009.3 1019.8 1028.8 1026.9 1028.8 DAY-HOUR 24-18 22- 6 3- 6 20- 6 1- 6 20- 6 25- 6 25- 6 30- 6 24- 6 30- 6 1- 6 MIN. QFF PRESSURE IN HPA 1008.4 1009.3 1004.2 1005.2 1001.8 994.8 992.1 993.9 998.8 1005.1 1009.3 1008.5 992.1 DAY-HOUR 20-21 2- 3 12-12 8-12 23- 0 30-12 17-15 6-15 1- 0 3- 0 22-12 21-15 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1019.4 1016.9 1014.9 1010.4 1005.5 1000.3 994.9 ****** 1002.4 1011.0 1017.2 1017.9 ****** MAX. QFE PRESSURE IN HPA 1024.9 1021.4 1023.6 1014.8 1013.0 1004.7 998.6 ****** 1006.5 1016.2 1026.2 1024.0 ****** DAY 25 22 3 3 1 20 25 ** 30 24 30 1 MIN. QFE PRESSURE IN HPA 1008.7 1010.1 1005.2 1005.3 1001.1 994.2 992.2 ****** 998.1 1004.4 1008.7 1008.6 ****** DAY 20 2 30 8 23 30 2 ** 1 3 22 22 MEAN QNH PRESSURE IN HPA 1019.9 1017.4 1015.4 1010.9 1006.0 1000.8 995.4 ****** 1002.8 1011.5 1017.6 1018.4 ****** MAX. QNH PRESSURE IN HPA 1025.4 1021.9 1024.1 1015.3 1013.5 1005.2 999.1 ****** 1007.0 1016.7 1026.7 1024.5 ****** DAY 25 22 3 3 1 20 25 ** 30 24 30 1 MIN. QNH PRESSURE IN HPA 1009.2 1010.6 1005.7 1005.8 1001.6 994.7 992.7 ****** 998.6 1004.9 1009.2 1009.1 ****** DAY 20 2 30 8 23 30 2 ** 1 3 22 22 MEAN QFF PRESSURE IN HPA 1020.2 1017.7 1015.7 1011.1 1006.3 1001.0 995.6 ****** 1003.1 1011.8 1017.9 1018.7 ****** MAX. QFF PRESSURE IN HPA 1025.7 1022.2 1024.4 1015.6 1013.8 1005.4 999.3 ****** 1007.2 1017.0 1027.0 1024.8 ****** DAY 25 22 3 3 1 20 25 ** 30 24 30 1 MIN. QFF PRESSURE IN HPA 1009.5 1010.9 1006.0 1006.1 1001.8 994.9 992.9 ****** 998.8 1005.1 1009.4 1009.4 ****** DAY 20 2 30 8 23 30 2 ** 1 3 22 22 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1019.7 1017.2 1015.4 1011.2 1006.1 1000.9 995.4 997.1 1002.9 1011.6 1017.8 1018.1 1009.5 MAX. QFE PRESSURE IN HPA 1025.0 1022.6 1024.5 1014.9 1013.4 1005.0 999.1 1000.1 1006.9 1017.2 1026.5 1024.7 1026.5 DAY 25 22 3 3 1 11 25 25 30 24 30 1 MIN. QFE PRESSURE IN HPA 1010.2 1008.5 1005.2 1005.9 1002.4 995.1 992.1 994.5 999.1 1004.9 1008.6 1008.5 992.1 DAY 21 2 30 8 22 30 17 7 1 3 22 22 MEAN QNH PRESSURE IN HPA 1020.2 1017.7 1015.9 1011.7 1006.6 1001.4 995.9 997.6 1003.4 1012.1 1018.3 1018.6 1009.9 MAX. QNH PRESSURE IN HPA 1025.5 1023.1 1025.0 1015.4 1013.9 1005.5 999.6 1000.6 1007.4 1017.7 1027.0 1025.2 1027.0 DAY 25 22 3 3 1 11 25 25 30 24 30 1 MIN. QNH PRESSURE IN HPA 1010.7 1009.0 1005.7 1006.4 1002.9 995.6 992.6 995.0 999.6 1005.4 1009.1 1009.0 992.6 DAY 21 2 30 8 22 30 17 7 1 3 22 22 MEAN QFF PRESSURE IN HPA 1020.5 1018.0 1016.2 1011.9 1006.9 1001.7 996.1 997.9 1003.6 1012.4 1018.6 1018.9 1010.2 MAX. QFF PRESSURE IN HPA 1025.8 1023.4 1025.3 1015.7 1014.2 1005.7 999.8 1000.8 1007.7 1018.0 1027.3 1025.5 1027.3 DAY 25 22 3 3 1 20 25 25 30 24 30 1 MIN. QFF PRESSURE IN HPA 1011.0 1009.3 1006.0 1006.7 1003.1 995.8 992.8 995.2 999.8 1005.7 1009.4 1009.3 992.8 DAY 21 2 30 8 22 30 17 7 1 3 22 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1020.5 1018.3 1016.6 1012.2 1007.2 1001.8 996.3 998.2 1004.2 1013.1 1019.3 1019.6 1010.6 MAX. QFE PRESSURE IN HPA 1025.7 1023.8 1026.0 1016.2 1014.5 1006.3 1000.0 1001.2 1008.6 1019.0 1028.0 1026.1 1028.0 DAY 24 22 3 20 1 11 25 25 30 24 30 1 MIN. QFE PRESSURE IN HPA 1012.9 1010.1 1007.0 1006.2 1002.9 995.2 992.5 995.6 1000.9 1006.5 1009.9 1009.9 992.5 DAY 20 2 12 8 22 30 17 16 1 3 22 22 MEAN QNH PRESSURE IN HPA 1021.0 1018.8 1017.1 1012.6 1007.7 1002.3 996.8 998.7 1004.7 1013.6 1019.8 1020.1 1011.1 MAX. QNH PRESSURE IN HPA 1026.2 1024.3 1026.5 1016.7 1015.0 1006.8 1000.5 1001.7 1009.1 1019.5 1028.5 1026.6 1028.5 DAY 24 22 3 20 1 11 25 25 30 24 30 1 MIN. QNH PRESSURE IN HPA 1013.4 1010.6 1007.5 1006.7 1003.4 995.7 993.0 996.1 1001.4 1007.0 1010.4 1010.4 993.0 DAY 20 2 12 8 22 30 17 16 1 3 22 22 MEAN QFF PRESSURE IN HPA 1021.3 1019.1 1017.4 1012.9 1008.0 1002.5 997.1 999.3 1004.9 1013.9 1020.1 1020.4 1011.4 MAX. QFF PRESSURE IN HPA 1026.5 1024.6 1026.8 1017.0 1015.3 1007.0 1000.7 1001.9 1009.3 1019.8 1028.8 1026.9 1028.8 DAY 24 22 3 20 1 20 25 25 30 24 30 1 MIN. QFF PRESSURE IN HPA 1013.7 1010.9 1007.8 1007.0 1003.6 995.9 993.2 996.5 1001.6 1007.3 1010.7 1010.7 993.2 DAY 20 2 12 8 22 30 17 17 1 3 22 22 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1019.3 1017.4 1015.7 1011.6 1006.7 1001.5 995.9 997.6 1003.6 1012.2 1018.0 1018.3 1009.8 MAX. QFE PRESSURE IN HPA 1024.7 1022.5 1025.5 1015.5 1012.9 1005.9 999.8 1000.3 1007.8 1018.0 1027.0 1024.8 1027.0 DAY 24 22 3 2 1 10 24 24 30 24 30 1 MIN. QFE PRESSURE IN HPA 1012.2 1010.4 1004.7 1006.4 1002.7 995.3 992.8 995.0 1000.0 1005.8 1009.1 1010.0 992.8 DAY 20 2 12 8 22 30 17 16 16 3 22 21 MEAN QNH PRESSURE IN HPA 1019.8 1017.9 1016.2 1012.1 1007.2 1001.9 996.4 998.1 1004.0 1012.7 1018.5 1018.8 1010.3 MAX. QNH PRESSURE IN HPA 1025.2 1023.0 1026.0 1016.0 1013.4 1006.4 1000.3 1000.8 1008.3 1018.5 1027.5 1025.3 1027.5 DAY 24 22 3 2 1 10 24 24 30 24 30 1 MIN. QNH PRESSURE IN HPA 1012.7 1010.9 1005.2 1006.9 1003.2 995.8 993.3 995.5 1000.5 1006.3 1009.6 1010.5 993.3 DAY 20 2 12 8 22 30 17 16 16 3 22 21 MEAN QFF PRESSURE IN HPA 1020.5 1018.2 1016.5 1012.4 1007.4 1002.2 996.7 ****** 1004.3 1013.0 1018.8 1019.1 ****** MAX. QFF PRESSURE IN HPA 1025.5 1023.3 1026.3 1016.3 1013.7 1006.6 1000.5 ****** 1008.5 1018.8 1027.8 1025.6 ****** DAY 24 22 3 2 1 10 24 ** 30 24 30 1 MIN. QFF PRESSURE IN HPA 1013.0 1011.2 1005.5 1007.2 1003.4 996.0 993.5 ****** 1000.7 1006.5 1009.9 1010.8 ****** DAY 20 2 12 8 22 30 17 ** 16 3 22 21 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1018.0 1015.9 1014.0 1010.1 1005.4 1000.2 994.8 996.2 1002.2 1010.7 1016.6 1016.7 1008.4 MAX. QFE PRESSURE IN HPA 1023.6 1021.1 1024.0 1014.3 1011.4 1004.6 998.8 999.0 1006.2 1016.4 1025.5 1022.5 1025.5 DAY 24 22 3 2 1 10 24 24 25 24 29 1 MIN. QFE PRESSURE IN HPA 1010.0 1010.2 1003.4 1004.4 1002.0 994.1 991.8 993.7 998.8 1004.7 1008.5 1007.8 991.8 DAY 20 2 12 8 22 30 17 15 16 2 22 21 MEAN QNH PRESSURE IN HPA 1018.5 1016.4 1014.5 1010.6 1005.9 1000.7 995.3 996.6 1002.6 1011.2 1017.1 1017.2 1008.9 MAX. QNH PRESSURE IN HPA 1024.1 1021.6 1024.5 1014.8 1011.9 1005.1 999.3 999.5 1006.7 1016.9 1026.0 1023.0 1026.0 DAY 24 22 3 2 1 10 24 24 25 24 29 1 MIN. QNH PRESSURE IN HPA 1010.5 1010.7 1003.9 1004.9 1002.5 994.6 992.3 994.2 999.3 1005.2 1009.0 1008.3 992.3 DAY 20 2 12 8 22 30 17 15 16 2 22 21 MEAN QFF PRESSURE IN HPA 1019.3 1016.6 1014.8 1010.8 1006.1 1001.0 995.6 ****** 1002.9 1011.5 1017.4 1017.5 ****** MAX. QFF PRESSURE IN HPA 1024.4 1021.9 1024.8 1015.1 1012.1 1005.3 999.5 ****** 1006.9 1017.2 1026.3 1023.3 ****** DAY 24 22 3 2 1 10 24 ** 25 24 29 1 MIN. QFF PRESSURE IN HPA 1010.8 1011.0 1004.2 1005.2 1002.7 994.8 992.5 ****** 999.5 1005.4 1009.3 1008.6 ****** DAY 20 2 12 8 22 30 17 ** 16 2 22 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1018.5 1016.3 1014.2 1010.0 1004.9 999.7 994.3 995.8 1002.2 1010.9 1017.2 1017.1 1008.4 MAX. QFE PRESSURE IN HPA 1024.7 1021.4 1023.9 1014.1 1010.2 1004.3 998.1 998.7 1006.2 1016.5 1025.9 1023.0 1025.9 DAY 24 22 3 2 1 10 24 24 30 24 29 1 MIN. QFE PRESSURE IN HPA 1010.4 1011.5 1006.8 1006.6 1001.3 994.1 991.4 993.2 998.7 1004.8 1010.2 1007.7 991.4 DAY 20 24 12 13 22 30 17 6 16 2 22 21 MEAN QNH PRESSURE IN HPA 1019.0 1016.8 1014.7 1010.5 1005.4 1000.2 994.8 996.2 1002.6 1011.4 1017.7 1017.6 1008.9 MAX. QNH PRESSURE IN HPA 1025.2 1021.9 1024.4 1014.6 1010.7 1004.8 998.6 999.2 1006.7 1017.0 1026.4 1023.5 1026.4 DAY 24 22 3 2 1 10 24 24 30 24 29 1 MIN. QNH PRESSURE IN HPA 1010.9 1012.0 1007.3 1007.1 1001.8 994.6 991.9 993.7 999.2 1005.3 1010.7 1008.2 991.9 DAY 20 24 12 13 22 30 17 6 16 2 22 21 MEAN QFF PRESSURE IN HPA 1019.7 1017.1 1015.0 1010.8 1005.6 1000.4 995.1 996.5 1002.9 1011.7 1017.9 1017.9 1009.2 MAX. QFF PRESSURE IN HPA 1025.5 1022.2 1024.7 1014.9 1011.0 1005.0 998.8 999.4 1007.0 1017.3 1026.7 1023.8 1026.7 DAY 24 22 3 2 1 10 24 24 30 24 29 1 MIN. QFF PRESSURE IN HPA 1011.2 1012.3 1007.6 1007.4 1002.0 994.8 992.1 993.9 999.4 1005.6 1011.0 1008.5 992.1 DAY 20 24 12 13 22 30 17 6 16 2 22 21 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1019.1 1017.6 1015.4 1011.1 1005.8 1000.3 995.3 997.1 1003.4 1011.8 1017.7 1018.0 1009.4 MAX. QFE PRESSURE IN HPA 1025.8 1022.1 1024.6 1015.2 1011.1 1006.1 999.3 999.2 1007.3 1017.2 1026.6 1023.5 1026.6 DAY 24 22 3 2 1 10 24 24 30 24 29 29 MIN. QFE PRESSURE IN HPA 1010.9 1012.5 1006.0 1006.8 1002.1 994.7 992.4 994.3 1000.2 1005.4 1011.3 1009.3 992.4 DAY 20 1 29 7 22 29 17 16 16 2 21 11 MEAN QNH PRESSURE IN HPA 1019.6 1018.1 1015.9 1011.6 1006.3 1000.8 995.7 997.6 1003.8 1012.3 1018.2 1018.5 1009.9 MAX. QNH PRESSURE IN HPA 1026.3 1022.6 1025.1 1015.7 1011.6 1006.6 999.8 999.7 1007.8 1017.7 1027.1 1024.0 1027.1 DAY 24 22 3 2 1 10 24 24 30 24 29 29 MIN. QNH PRESSURE IN HPA 1011.4 1013.0 1006.5 1007.3 1002.6 995.2 992.9 994.8 1000.7 1005.9 1011.8 1009.8 992.9 DAY 20 1 29 7 22 29 17 16 16 2 21 11 MEAN QFF PRESSURE IN HPA 1019.9 1018.4 1016.2 1011.9 1006.5 1001.1 996.0 997.8 1004.1 1012.6 1018.5 1018.8 1010.1 MAX. QFF PRESSURE IN HPA 1026.6 1022.9 1025.4 1016.0 1011.9 1006.8 1000.0 999.9 1008.0 1018.0 1027.4 1024.3 1027.4 DAY 24 22 3 2 1 10 24 24 30 24 29 29 MIN. QFF PRESSURE IN HPA 1011.7 1013.3 1006.8 1007.6 1002.8 995.4 993.1 995.0 1000.9 1006.2 1012.1 1010.1 993.1 DAY 20 1 29 7 22 29 17 16 16 2 21 21 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1019.6 1017.4 1015.5 1011.0 1005.7 1000.2 995.4 997.4 1003.1 1011.7 1017.6 1018.0 1009.4 MAX. QFE PRESSURE IN HPA 1025.8 1021.6 1023.6 1015.2 1010.9 1005.6 999.4 999.2 1006.6 1017.1 1026.5 1023.8 1026.5 DAY 24 22 2 2 1 10 24 25 29 24 29 29 MIN. QFE PRESSURE IN HPA 1007.6 1011.1 1006.5 1005.8 1000.3 994.7 992.7 994.8 1000.6 1004.9 1010.1 1008.8 992.7 DAY 20 1 29 7 12 29 16 22 15 2 21 21 MEAN QNH PRESSURE IN HPA 1020.1 1017.9 1016.0 1011.5 1006.2 1000.7 995.9 997.9 1003.6 1012.2 1018.1 1018.5 1009.9 MAX. QNH PRESSURE IN HPA 1026.3 1022.1 1024.1 1015.7 1011.4 1006.1 999.9 999.7 1007.1 1017.6 1027.0 1024.3 1027.0 DAY 24 22 2 2 1 10 24 25 29 24 29 29 MIN. QNH PRESSURE IN HPA 1008.1 1011.6 1007.0 1006.3 1000.8 995.2 993.2 995.3 1001.1 1005.4 1010.6 1009.3 993.2 DAY 20 1 29 7 12 29 16 22 15 2 21 21 MEAN QFF PRESSURE IN HPA 1020.3 1018.2 1016.3 1011.7 1006.6 1000.9 996.1 998.1 1003.9 1012.5 1018.4 1018.7 1010.1 MAX. QFF PRESSURE IN HPA 1026.6 1022.4 1024.4 1016.0 1011.6 1006.3 1000.1 999.9 1007.3 1017.9 1027.3 1024.6 1027.3 DAY 24 22 2 2 1 10 24 25 29 24 29 29 MIN. QFF PRESSURE IN HPA 1008.4 1011.9 1007.3 1006.6 1002.7 995.4 993.4 995.5 1001.3 1005.6 1010.9 1009.6 993.4 DAY 20 1 29 7 22 29 16 22 15 2 21 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 13.4 15.7 20.9 24.1 31.6 35.3 36.9 36.6 31.9 27.4 19.4 15.8 25.7 MINIMUN AIR TEMPERATURE (C) 7.8 9.9 13.9 16.6 22.1 25.4 27.7 28.2 22.7 18.3 12.8 10.5 18.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 3 22 30 31 31 22 3 2 0 144 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) 4.0 3.0 6.0 13.0 15.0 22.0 24.0 24.0 18.0 15.0 5.0 4.0 3.0 DAY 20 22 13 5 1 9 1 31 23 28 28 6 MAXIMUM AIR TEMPERATURE (C) 20.5 22.4 29.8 31.7 40.0 44.2 46.3 46.4 42.1 37.6 28.1 22.2 34.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 15 24 31 30 31 31 30 31 6 0 229 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 24.0 28.0 36.0 37.0 47.0 48.0 50.0 50.0 47.0 40.0 36.0 26.0 50.0 DAY 1 17 25 2 31 1 30 2 6 1 1 23 DIF. BETWEEN (MAX.-MIN.) (C) 12.7 12.5 15.9 15.1 17.9 18.8 18.6 18.2 19.4 19.3 15.3 11.7 16.3 MEAN DAILY TEMP. (MDT) (C) 14.1 16.1 21.8 24.2 31.0 34.8 37.0 37.3 32.4 28.0 20.4 16.4 26.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 35.5 96.0 311.5 413.5 496.0 505.0 342.0 216.0 32.5 0.5 2448.5 HEATING DEG. DAYS(BASE 18 0C) 120.5 60.5 4.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15.0 66.0 266.0 DEWPOINT (MEAN C) 7.6 5.7 7.2 9.2 9.3 9.6 14.5 17.2 12.0 11.9 10.0 9.8 10.3 MIXING RATIO (G/KG) 6.58 6.07 6.45 7.77 7.73 8.25 11.38 13.46 9.62 9.17 7.93 7.81 8.52 VAPOUR PRESSURE (HPA) 10.64 9.80 10.39 12.43 12.32 13.06 17.84 21.08 15.26 14.68 12.79 12.61 13.57 SATURATION DEF. (HPA) 5.28 8.76 15.70 18.87 37.12 47.12 47.78 43.51 35.54 24.17 11.20 6.07 25.09 RELATIVE HUMIDITY (MEAN %) 71 56 46 45 31 26 32 39 37 44 59 70 46 RELATIVE HUMIDITY (MAX. %) 90 79 72 73 58 50 60 68 63 71 84 89 71 RELATIVE HUMIDITY (MIN. %) 43 34 22 21 12 9 14 13 14 17 30 45 23 RELATIVE HUMIDITY (MEAN% 03UTC) 87 74 70 67 52 45 52 61 56 65 79 85 66 RELATIVE HUMIDITY (MEAN% 09UTC) 56 41 26 26 16 12 18 19 19 23 38 52 29 RELATIVE HUMIDITY (MEAN% 15UTC) 60 46 30 33 17 15 19 23 22 34 52 67 35 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 12.4 12.1 2.0 29.5 0.0 0.0 0.0 0.0 0.0 0.0 36.3 15.9 108.2 DAYS WITH PRECIPITATION >=10 0 0 0 2 0 0 0 0 0 0 1 0 3 DAYS WITH PRECIPITATION >= 5 0 1 0 2 0 0 0 0 0 0 1 1 5 DAYS WITH PRECIPITATION >= 1 5 5 1 4 0 0 0 0 0 0 1 5 21 DAYS WITH PRECIPITATION 7 6 1 6 0 0 0 0 0 0 3 11 34 GREATEST DAILY PRECIPITATION 4.0 7.0 2.0 12.0 0.0 0.0 0.0 0.0 0.0 0.0 36.0 6.0 36.0 DAY 15 27 9 20 ** ** ** ** ** ** 6 30 DAY WITH THUNDER STORM 1 0 0 5 1 0 0 0 0 0 4 0 11 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 6 7 12 12 11 21 14 6 9 5 4 4 111 WIND DIRECTION (PREVAILING) 315 315 270 315 270 315 270 180 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 6.0 7.8 7.0 10.7 5.8 10.6 5.9 4.8 5.0 4.8 4.3 4.7 5.5 PREVAILING WIND PERCENT 30.6 31.7 23.0 20.0 25.0 37.5 32.3 29.8 32.9 19.4 34.2 26.2 25.2 CALMS PERCENT OF WIND 5.2 7.6 16.9 6.3 6.9 6.3 6.0 9.3 7.9 21.4 17.1 5.2 9.7 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 295 326 292 289 306 301 292 216 297 283 302 316 295 VECTOR WIND MAGNITUDE(KNOTS) 1.3 0.7 1.9 1.0 2.9 6.0 4.0 1.5 3.5 1.1 2.1 0.4 2.1 WIND STEADINESES (MEAN %) 20.3 8.7 33.3 12.7 42.6 75.9 59.7 30.0 61.4 28.9 45.7 6.8 33.9 WIND SPEED (MEAN KNOTS) 6.4 8.0 5.7 7.9 6.8 7.9 6.7 5.0 5.7 3.8 4.6 5.9 6.2 FASTEST WIND DIRECTION 160 180 50 150 330 320 300 320 330 290 300 140 300 FASTEST WIND SPEED (KNOTS) 22 28 20 28 24 26 20 18 24 16 40 20 40 DAY 7 7 15 19 11 10 5 2 8 12 6 19 DAYS WITH SKY CLEAR (0-2)/8 13 14 17 17 24 30 30 26 30 26 21 13 261 DAYS WITH P.CLOUDY (3-6)/8 16 6 12 11 5 0 1 5 0 5 8 13 82 DAYS WITH CLOUDY (7-8)/8 2 8 2 2 2 0 0 0 0 0 1 5 22 DAYS WITH VISIBILITY =< 2 KM 2 3 4 6 4 2 4 0 2 4 5 1 37 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1018.5 1016.1 1013.0 1009.0 1005.6 1000.4 996.6 998.6 1004.4 1012.5 1017.5 1018.2 1009.2 MAX. QFE PRESSURE IN HPA 1024.7 1025.2 1023.6 1015.3 1014.4 1006.1 1001.6 1004.5 1016.5 1019.3 1023.6 1024.7 1025.2 DAY-HOUR 30- 6 10- 6 3- 6 24- 6 12- 6 10- 6 31- 6 25- 6 29- 6 27- 6 30- 6 2- 6 MIN. QFE PRESSURE IN HPA 1008.8 1000.8 1001.1 1001.2 998.8 994.8 991.6 993.2 998.7 1002.5 1010.8 1011.1 991.6 DAY-HOUR 7- 3 17-21 27-15 26-12 25- 0 30- 0 8-15 2-15 16- 0 10-12 2-12 9-12 MEAN QNH PRESSURE IN HPA 1019.0 1016.6 1013.5 1009.5 1006.1 1000.9 997.1 999.0 1004.9 1013.0 1018.0 1018.7 1009.7 MAX. QNH PRESSURE IN HPA 1025.2 1025.7 1024.1 1015.8 1014.9 1006.6 1002.1 1005.0 1017.0 1019.8 1024.1 1025.2 1025.7 DAY-HOUR 30- 6 10- 6 3- 6 24- 6 12- 6 10- 6 31- 6 25- 6 29- 6 27- 6 30- 6 2- 6 MIN. QNH PRESSURE IN HPA 1009.3 1001.3 1001.6 1001.7 999.3 995.3 992.1 993.7 999.2 1003.0 1011.3 1011.6 992.1 DAY-HOUR 7- 3 17-21 27-15 26-12 25- 0 30- 0 8-15 2-15 16- 0 10-12 2-12 9-12 MEAN QFF PRESSURE IN HPA 1019.3 1016.9 1013.7 1009.8 1006.4 1001.1 997.3 999.3 1005.1 1013.3 1018.3 1019.0 1009.9 MAX. QFF PRESSURE IN HPA 1025.5 1026.0 1024.4 1016.1 1015.2 1006.8 1002.3 1005.2 1017.2 1020.1 1024.4 1025.5 1026.0 DAY-HOUR 30- 6 10- 6 3- 6 24- 6 12- 6 10- 6 31- 6 25- 6 29- 6 27- 6 30- 6 2- 6 MIN. QFF PRESSURE IN HPA 1009.6 1001.5 1001.9 1001.9 999.5 995.5 992.3 993.9 999.4 1003.2 1011.6 1011.9 992.3 DAY-HOUR 7- 3 17-21 27-15 26-12 25- 0 30- 0 8-15 2-15 16- 0 10-12 2-12 9-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1018.3 1016.1 1012.6 1008.7 1005.3 999.8 996.2 997.9 1003.8 1012.0 1017.0 1017.9 1008.8 MAX. QFE PRESSURE IN HPA 1023.1 1023.4 1022.5 1013.4 1012.0 1004.9 1000.0 1002.4 1014.1 1017.6 1021.1 1022.9 1023.4 DAY 31 11 3 24 12 10 31 25 29 28 24 2 MIN. QFE PRESSURE IN HPA 1009.4 1003.6 1003.1 1003.9 998.8 994.8 992.5 993.8 998.7 1005.9 1011.6 1011.6 992.5 DAY 7 18 28 28 25 30 8 6 16 10 1 9 MEAN QNH PRESSURE IN HPA 1018.8 1016.6 1013.1 1009.2 1005.8 1000.3 996.7 998.4 1004.3 1012.5 1017.5 1018.4 1009.3 MAX. QNH PRESSURE IN HPA 1023.6 1023.9 1023.0 1013.9 1012.5 1005.4 1000.5 1002.9 1014.6 1018.1 1021.6 1023.4 1023.9 DAY 31 11 3 24 12 10 31 25 29 28 24 2 MIN. QNH PRESSURE IN HPA 1009.9 1004.1 1003.6 1004.4 999.3 995.3 993.0 994.3 999.2 1006.4 1012.1 1012.1 993.0 DAY 7 18 28 28 25 30 8 6 16 10 1 9 MEAN QFF PRESSURE IN HPA 1019.1 1016.9 1013.3 1009.5 1006.0 1000.6 996.9 998.6 1004.6 1012.8 1017.8 1018.7 1009.6 MAX. QFF PRESSURE IN HPA 1023.9 1024.2 1023.3 1014.2 1012.8 1005.6 1000.7 1003.1 1014.8 1018.4 1021.9 1023.7 1024.2 DAY 31 11 3 24 12 10 31 25 29 28 24 2 MIN. QFF PRESSURE IN HPA 1010.2 1004.4 1003.8 1004.6 999.5 995.5 993.2 994.5 999.4 1006.6 1012.4 1012.4 993.2 DAY 7 18 28 28 25 30 8 6 16 10 1 9 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1018.4 1016.3 1013.2 1009.1 1005.9 1000.6 997.1 999.0 1004.5 1012.6 1017.7 1018.3 1009.4 MAX. QFE PRESSURE IN HPA 1023.3 1023.4 1022.9 1014.3 1013.2 1005.4 1001.1 1003.4 1014.7 1017.8 1021.4 1023.4 1023.4 DAY 30 10 3 24 12 10 31 25 29 28 30 2 MIN. QFE PRESSURE IN HPA 1008.8 1008.2 1004.9 1003.1 999.4 995.5 993.0 994.6 999.8 1004.3 1012.3 1011.5 993.0 DAY 7 20 28 28 25 30 8 2 16 10 2 9 MEAN QNH PRESSURE IN HPA 1018.9 1016.8 1013.7 1009.6 1006.4 1001.1 997.6 999.5 1005.0 1013.1 1018.2 1018.8 1009.9 MAX. QNH PRESSURE IN HPA 1023.8 1023.9 1023.4 1014.8 1013.7 1005.9 1001.6 1003.9 1015.2 1018.3 1021.9 1023.9 1023.9 DAY 30 10 3 24 12 10 31 25 29 28 30 2 MIN. QNH PRESSURE IN HPA 1009.3 1008.7 1005.4 1003.6 999.9 996.0 993.5 995.1 1000.3 1004.8 1012.8 1012.0 993.5 DAY 7 20 28 28 25 30 8 2 16 10 2 9 MEAN QFF PRESSURE IN HPA 1019.2 1017.1 1013.9 1009.9 1006.6 1001.3 997.8 999.8 1005.2 1013.4 1018.5 1019.1 1010.1 MAX. QFF PRESSURE IN HPA 1024.1 1024.2 1023.7 1015.1 1014.0 1006.1 1001.8 1004.1 1015.5 1018.6 1022.2 1024.2 1024.2 DAY 30 10 3 24 12 10 31 25 29 28 30 2 MIN. QFF PRESSURE IN HPA 1009.6 1009.0 1005.7 1003.9 1000.1 996.2 993.7 995.3 1000.5 1005.0 1013.1 1012.3 993.7 DAY 7 20 28 28 25 30 8 2 16 10 2 9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1019.8 1017.6 1014.5 1010.3 1007.0 1001.5 997.8 1000.0 1005.9 1014.1 1019.0 1019.6 1010.6 MAX. QFE PRESSURE IN HPA 1024.7 1025.2 1023.6 1015.3 1014.4 1006.1 1001.6 1004.5 1016.5 1019.3 1023.6 1024.7 1025.2 DAY 30 10 3 24 12 10 31 25 29 27 30 2 MIN. QFE PRESSURE IN HPA 1010.4 1008.7 1007.2 1004.1 1000.6 996.4 993.6 995.2 1002.0 1004.7 1013.7 1012.5 993.6 DAY 7 20 28 28 25 30 8 2 16 10 2 9 MEAN QNH PRESSURE IN HPA 1020.3 1018.1 1015.0 1010.8 1007.5 1002.0 998.3 1000.5 1006.3 1014.5 1019.5 1020.1 1011.1 MAX. QNH PRESSURE IN HPA 1025.2 1025.7 1024.1 1015.8 1014.9 1006.6 1002.1 1005.0 1017.0 1019.8 1024.1 1025.2 1025.7 DAY 30 10 3 24 12 10 31 25 29 27 30 2 MIN. QNH PRESSURE IN HPA 1010.9 1009.2 1007.7 1004.6 1001.1 996.9 994.1 995.7 1002.5 1005.2 1014.2 1013.0 994.1 DAY 7 20 28 28 25 30 8 2 16 10 2 9 MEAN QFF PRESSURE IN HPA 1020.6 1018.4 1015.3 1011.1 1007.7 1002.2 998.5 1000.7 1006.6 1014.8 1019.8 1020.4 1011.3 MAX. QFF PRESSURE IN HPA 1025.5 1026.0 1024.4 1016.1 1015.2 1006.8 1002.3 1005.2 1017.2 1020.1 1024.4 1025.5 1026.0 DAY 30 10 3 24 12 10 31 25 29 27 30 2 MIN. QFF PRESSURE IN HPA 1011.2 1009.5 1008.0 1004.8 1001.3 997.1 994.3 995.9 1002.7 1005.4 1014.5 1013.3 994.3 DAY 7 20 28 28 25 30 8 2 16 10 2 9 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1018.7 1016.7 1013.8 1009.6 1006.4 1001.3 997.4 999.5 1005.1 1013.1 1018.0 1018.7 1009.9 MAX. QFE PRESSURE IN HPA 1023.9 1024.6 1022.8 1014.8 1013.3 1005.6 1001.1 1004.1 1015.5 1018.8 1022.0 1024.1 1024.6 DAY 30 10 3 24 12 10 30 25 29 27 30 1 MIN. QFE PRESSURE IN HPA 1011.1 1006.7 1006.6 1003.9 1000.2 996.9 993.3 994.5 1001.4 1003.9 1012.5 1012.0 993.3 DAY 7 20 27 20 25 30 8 2 5 10 2 9 MEAN QNH PRESSURE IN HPA 1019.2 1017.2 1014.3 1010.1 1006.9 1001.8 997.9 1000.0 1005.6 1013.6 1018.5 1019.2 1010.4 MAX. QNH PRESSURE IN HPA 1024.4 1025.1 1023.3 1015.3 1013.8 1006.1 1001.6 1004.6 1016.0 1019.3 1022.5 1024.6 1025.1 DAY 30 10 3 24 12 10 30 25 29 27 30 1 MIN. QNH PRESSURE IN HPA 1011.6 1007.2 1007.1 1004.4 1000.7 997.4 993.8 995.0 1001.9 1004.4 1013.0 1012.5 993.8 DAY 7 20 27 20 25 30 8 2 5 10 2 9 MEAN QFF PRESSURE IN HPA 1019.5 1017.5 1014.6 1010.4 1007.2 1002.0 998.1 1000.2 1005.8 1013.9 1018.8 1019.5 1010.6 MAX. QFF PRESSURE IN HPA 1024.7 1025.4 1023.6 1015.6 1014.1 1006.3 1001.8 1004.8 1016.2 1019.6 1022.8 1024.9 1025.4 DAY 30 10 3 24 12 10 30 25 29 27 30 1 MIN. QFF PRESSURE IN HPA 1011.9 1007.5 1007.4 1004.6 1000.9 997.6 994.0 995.2 1002.1 1004.6 1013.3 1012.8 994.0 DAY 7 20 27 20 25 30 8 2 5 10 2 9 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1017.2 1014.7 1012.0 1008.0 1004.9 1000.1 996.0 997.9 1003.5 1011.5 1016.6 1017.2 1008.3 MAX. QFE PRESSURE IN HPA 1022.0 1022.7 1020.5 1013.0 1011.9 1004.4 999.5 1002.8 1013.2 1017.5 1021.0 1023.0 1023.0 DAY 18 10 2 24 12 10 31 25 29 27 30 1 MIN. QFE PRESSURE IN HPA 1010.6 1004.3 1003.3 1001.2 999.3 995.7 992.1 993.7 999.5 1002.5 1010.8 1011.1 992.1 DAY 22 20 27 26 25 28 8 2 5 10 2 9 MEAN QNH PRESSURE IN HPA 1017.7 1015.2 1012.5 1008.4 1005.4 1000.6 996.5 998.4 1004.0 1012.0 1017.0 1017.7 1008.8 MAX. QNH PRESSURE IN HPA 1022.5 1023.2 1021.0 1013.5 1012.4 1004.9 1000.0 1003.3 1013.7 1018.0 1021.5 1023.5 1023.5 DAY 18 10 2 24 12 10 31 25 29 27 30 1 MIN. QNH PRESSURE IN HPA 1011.1 1004.8 1003.8 1001.7 999.8 996.2 992.6 994.2 1000.0 1003.0 1011.3 1011.6 992.6 DAY 22 20 27 26 25 28 8 2 5 10 2 9 MEAN QFF PRESSURE IN HPA 1018.0 1015.5 1012.7 1008.7 1005.7 1000.8 996.7 998.6 1004.3 1012.3 1017.3 1018.0 1009.1 MAX. QFF PRESSURE IN HPA 1022.8 1023.5 1021.3 1013.8 1012.6 1005.1 1000.2 1003.5 1013.9 1018.3 1021.8 1023.8 1023.8 DAY 18 10 2 24 12 10 31 25 29 27 30 1 MIN. QFF PRESSURE IN HPA 1011.4 1005.1 1004.1 1001.9 1000.0 996.4 992.8 994.4 1000.2 1003.2 1011.6 1011.9 992.8 DAY 22 20 27 26 25 28 8 2 5 10 2 9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1017.8 1015.2 1012.0 1008.0 1004.6 999.5 995.5 997.3 1003.5 1011.7 1016.9 1017.7 1008.3 MAX. QFE PRESSURE IN HPA 1022.6 1023.7 1020.9 1013.3 1011.3 1004.2 999.0 1002.7 1012.9 1017.6 1021.5 1023.4 1023.7 DAY 30 10 2 24 12 9 1 25 29 27 30 1 MIN. QFE PRESSURE IN HPA 1011.0 1004.9 1001.1 1002.1 999.3 995.1 991.6 993.2 999.2 1004.5 1011.4 1012.2 991.6 DAY 21 17 27 28 25 28 8 2 5 10 2 9 MEAN QNH PRESSURE IN HPA 1018.3 1015.7 1012.4 1008.4 1005.1 1000.0 996.0 997.8 1004.0 1012.2 1017.4 1018.2 1008.8 MAX. QNH PRESSURE IN HPA 1023.1 1024.2 1021.4 1013.8 1011.8 1004.7 999.5 1003.2 1013.4 1018.1 1022.0 1023.9 1024.2 DAY 30 10 2 24 12 9 1 25 29 27 30 1 MIN. QNH PRESSURE IN HPA 1011.5 1005.4 1001.6 1002.6 999.8 995.6 992.1 993.7 999.7 1005.0 1011.9 1012.7 992.1 DAY 21 17 27 28 25 28 8 2 5 10 2 9 MEAN QFF PRESSURE IN HPA 1018.6 1016.0 1012.7 1008.7 1005.3 1000.2 996.2 998.0 1004.2 1012.4 1017.7 1018.5 1009.1 MAX. QFF PRESSURE IN HPA 1023.4 1024.5 1021.7 1014.1 1012.0 1004.9 999.7 1003.4 1013.6 1018.4 1022.3 1024.2 1024.5 DAY 30 10 2 24 12 9 1 25 29 27 30 1 MIN. QFF PRESSURE IN HPA 1011.8 1005.7 1001.9 1002.8 1000.0 995.8 992.3 993.9 999.9 1005.2 1012.2 1013.0 992.3 DAY 21 17 27 28 25 28 8 2 5 10 2 9 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1018.9 1016.0 1012.9 1009.4 1005.5 1000.3 996.4 998.5 1004.5 1012.6 1017.5 1018.3 1009.3 MAX. QFE PRESSURE IN HPA 1023.2 1024.7 1022.5 1013.9 1012.2 1005.1 1000.2 1003.7 1013.9 1018.4 1022.6 1023.1 1024.7 DAY 30 10 2 24 11 9 1 25 28 27 30 1 MIN. QFE PRESSURE IN HPA 1011.7 1002.7 1001.7 1004.7 1000.0 995.6 992.6 994.5 999.6 1006.3 1012.3 1012.9 992.6 DAY 21 17 27 15 24 28 8 2 15 9 2 8 MEAN QNH PRESSURE IN HPA 1019.4 1016.5 1013.4 1009.9 1006.0 1000.8 996.9 998.9 1005.0 1013.1 1018.0 1018.8 1009.7 MAX. QNH PRESSURE IN HPA 1023.7 1025.2 1023.0 1014.4 1012.7 1005.6 1000.7 1004.2 1014.4 1018.9 1023.1 1023.6 1025.2 DAY 30 10 2 24 11 9 1 25 28 27 30 1 MIN. QNH PRESSURE IN HPA 1012.2 1003.2 1002.2 1005.2 1000.5 996.1 993.1 995.0 1000.1 1006.8 1012.8 1013.4 993.1 DAY 21 17 27 15 24 28 8 2 15 9 2 8 MEAN QFF PRESSURE IN HPA 1019.7 1016.8 1013.7 1010.2 1006.3 1001.1 997.1 999.2 1005.3 1013.4 1018.3 1019.1 1010.0 MAX. QFF PRESSURE IN HPA 1024.0 1025.5 1023.3 1014.7 1013.0 1005.8 1000.9 1004.4 1014.6 1019.2 1023.4 1023.9 1025.5 DAY 30 10 2 24 11 9 1 25 28 27 30 1 MIN. QFF PRESSURE IN HPA 1012.5 1003.5 1002.5 1005.4 1000.7 996.3 993.3 995.2 1000.3 1007.0 1013.1 1013.7 993.3 DAY 21 17 27 15 24 28 8 2 15 9 2 8 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1018.7 1016.2 1013.0 1009.3 1005.5 1000.3 996.5 998.5 1004.4 1012.5 1017.5 1018.2 1009.2 MAX. QFE PRESSURE IN HPA 1023.2 1023.6 1022.7 1014.0 1012.3 1005.6 1000.0 1003.6 1013.7 1018.6 1022.5 1023.2 1023.6 DAY 30 10 2 23 11 9 1 24 28 27 30 1 MIN. QFE PRESSURE IN HPA 1011.0 1000.8 1002.9 1003.3 1000.4 996.1 992.9 994.5 999.1 1006.2 1012.4 1012.7 992.9 DAY 6 17 27 20 24 28 7 2 15 9 2 8 MEAN QNH PRESSURE IN HPA 1019.2 1016.7 1013.5 1009.7 1006.0 1000.8 997.0 999.0 1004.9 1013.0 1018.0 1018.7 1009.7 MAX. QNH PRESSURE IN HPA 1023.7 1024.1 1023.2 1014.5 1012.8 1006.1 1000.5 1004.1 1014.2 1019.1 1023.0 1023.7 1024.1 DAY 30 10 2 23 11 9 1 24 28 27 30 1 MIN. QNH PRESSURE IN HPA 1011.5 1001.3 1003.4 1003.8 1000.9 996.6 993.4 995.0 999.6 1006.7 1012.9 1013.2 993.4 DAY 6 17 27 20 24 28 7 2 15 9 2 8 MEAN QFF PRESSURE IN HPA 1019.5 1017.0 1013.8 1010.0 1006.3 1001.0 997.2 999.2 1005.1 1013.3 1018.3 1019.0 1010.0 MAX. QFF PRESSURE IN HPA 1024.0 1024.4 1023.5 1014.8 1013.0 1006.3 1000.7 1004.3 1014.4 1019.4 1023.3 1024.0 1024.4 DAY 30 10 2 23 11 9 1 24 28 27 30 1 MIN. QFF PRESSURE IN HPA 1011.8 1001.5 1003.6 1004.0 1001.1 996.8 993.6 995.2 999.8 1006.9 1013.1 1013.5 993.6 DAY 6 17 27 20 24 28 7 2 15 9 2 8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 15.3 18.0 18.0 25.2 27.3 34.8 36.6 36.0 31.8 27.2 17.9 12.0 25.0 MINIMUN AIR TEMPERATURE (C) 9.8 12.5 11.2 18.6 20.4 26.2 28.3 27.0 22.4 19.7 11.5 6.5 17.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 8 15 29 31 31 23 10 1 0 148 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) 5.0 6.0 5.0 11.0 12.0 20.0 25.0 24.0 17.0 16.0 6.0 1.0 1.0 DAY 10 7 9 1 3 1 5 16 29 20 29 13 MAXIMUM AIR TEMPERATURE (C) 22.1 25.1 25.2 32.1 34.2 43.4 45.2 45.8 42.3 36.5 25.9 18.5 33.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 2 23 25 30 31 31 30 31 3 0 206 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 27.0 29.0 30.0 37.0 42.0 48.0 49.0 50.0 45.0 41.0 33.0 24.0 50.0 DAY 30 23 29 21 27 5 31 5 6 7 1 2 DIF. BETWEEN (MAX.-MIN.) (C) 12.3 12.6 14.0 13.5 13.8 17.2 16.9 18.8 19.9 16.8 14.4 12.0 15.2 MEAN DAILY TEMP. (MDT) (C) 16.0 18.8 18.2 25.3 27.3 34.8 36.7 36.4 32.3 28.1 18.7 12.5 25.4 COOLING DEG. DAYS(BASE 21 0C) 1.0 10.0 8.5 130.0 195.0 414.0 488.0 477.0 340.5 220.0 16.5 0.0 2300.5 HEATING DEG. DAYS(BASE 18 0C) 76.0 23.0 36.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21.0 171.5 327.5 DEWPOINT (MEAN C) 9.6 9.5 4.4 11.8 13.4 11.6 14.1 15.6 12.8 13.4 7.7 4.3 10.7 MIXING RATIO (G/KG) 7.59 7.70 5.55 9.09 9.98 9.01 10.63 11.70 9.92 10.19 6.78 5.37 8.62 VAPOUR PRESSURE (HPA) 12.25 12.40 8.94 14.51 15.88 14.28 16.72 18.38 15.74 16.27 10.94 8.71 13.75 SATURATION DEF. (HPA) 5.85 9.14 12.74 18.77 22.29 44.08 47.56 44.24 34.32 21.79 10.83 6.03 23.14 RELATIVE HUMIDITY (MEAN %) 72 62 46 49 48 29 30 35 38 48 55 62 48 RELATIVE HUMIDITY (MAX. %) 91 85 74 75 75 54 51 58 67 74 80 84 72 RELATIVE HUMIDITY (MIN. %) 45 36 20 26 25 11 13 14 12 21 29 35 24 RELATIVE HUMIDITY (MEAN% 03UTC) 89 79 70 72 72 46 45 54 61 70 73 80 68 RELATIVE HUMIDITY (MEAN% 09UTC) 57 43 28 32 30 14 17 19 17 27 34 45 30 RELATIVE HUMIDITY (MEAN% 15UTC) 62 49 30 37 34 17 19 22 26 38 47 55 36 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 2.0 16.9 3.1 27.1 18.0 0.0 0.0 0.0 0.0 0.0 2.0 14.3 83.4 DAYS WITH PRECIPITATION >=10 0 0 0 1 0 0 0 0 0 0 0 1 2 DAYS WITH PRECIPITATION >= 5 0 1 0 1 2 0 0 0 0 0 0 1 5 DAYS WITH PRECIPITATION >= 1 1 6 1 4 3 0 0 0 0 0 2 1 18 DAYS WITH PRECIPITATION 2 9 5 9 6 0 0 0 0 0 4 5 40 GREATEST DAILY PRECIPITATION 2.0 7.0 2.0 22.0 8.0 0.0 0.0 0.0 0.0 0.0 1.0 14.0 22.0 DAY 24 26 27 4 10 ** ** ** ** ** 4 4 DAY WITH THUNDER STORM 0 3 2 7 6 0 0 0 0 0 0 2 20 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 5 6 12 9 12 22 15 7 6 10 4 8 116 WIND DIRECTION (PREVAILING) 270 315 315 315 315 315 315 270 270 315 270 315 315 PREVAILING WIND SPEED(KNOTS) 4.6 7.4 10.1 7.9 10.7 12.7 11.7 6.0 5.9 7.5 5.1 7.0 9.4 PREVAILING WIND PERCENT 23.4 21.4 30.6 23.3 24.2 45.8 45.7 46.4 31.3 33.1 47.5 32.7 29.4 CALMS PERCENT OF WIND 11.7 2.2 5.6 8.3 8.1 1.7 8.5 6.9 13.8 11.7 12.1 15.3 8.9 NO. OF WIND OBSERVATION 248 224 248 240 248 240 247 248 240 248 240 248 2919 VECTOR WIND DIRECTION (MEAN) 197 233 294 156 303 310 302 295 284 290 286 279 293 VECTOR WIND MAGNITUDE(KNOTS) 1.0 0.5 3.5 1.2 0.7 8.3 7.4 5.3 3.3 2.3 3.5 2.4 3.0 WIND STEADINESES (MEAN %) 16.9 7.2 44.3 15.0 9.0 86.5 89.2 79.1 62.3 39.0 66.0 41.4 43.5 WIND SPEED (MEAN KNOTS) 5.9 6.9 7.9 8.0 7.8 9.6 8.3 6.7 5.3 5.9 5.3 5.8 6.9 FASTEST WIND DIRECTION 150 170 280 150 150 340 330 330 300 330 120 170 170 FASTEST WIND SPEED (KNOTS) 22 24 30 22 28 28 30 28 20 20 24 34 34 DAY 26 28 16 17 1 3 7 7 1 3 2 30 DAYS WITH SKY CLEAR (0-2)/8 19 11 17 13 21 30 30 31 30 22 21 25 270 DAYS WITH P.CLOUDY (3-6)/8 11 13 12 15 8 0 1 0 0 9 5 6 80 DAYS WITH CLOUDY (7-8)/8 1 4 2 2 2 0 0 0 0 0 4 0 15 DAYS WITH VISIBILITY =< 2 KM 7 0 4 1 4 8 10 5 1 6 2 5 53 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1018.1 1015.8 1014.0 1008.6 1006.8 1001.8 996.6 997.4 1005.0 1011.8 1016.6 1019.0 1009.3 MAX. QFE PRESSURE IN HPA 1023.1 1022.9 1021.8 1017.0 1012.7 1008.1 1001.1 1001.7 1014.4 1016.8 1022.2 1026.7 1026.7 DAY-HOUR 6- 6 5- 6 8- 6 1- 6 8- 6 12- 9 25- 6 29- 6 24- 6 20- 6 29- 6 11-18 MIN. QFE PRESSURE IN HPA 1011.3 1008.7 1004.4 1000.8 1000.1 992.7 992.1 992.6 998.0 1005.8 1010.7 1007.9 992.1 DAY-HOUR 25-12 10-12 30-15 16- 0 28-15 30-15 12-15 12-15 2-15 10-12 2-12 30-12 MEAN QNH PRESSURE IN HPA 1018.5 1016.3 1014.5 1009.1 1007.3 1002.3 997.1 997.8 1005.5 1012.3 1017.1 1019.5 1009.8 MAX. QNH PRESSURE IN HPA 1023.6 1023.4 1022.3 1017.5 1013.2 1008.6 1001.6 1002.2 1014.9 1017.3 1022.7 1027.2 1027.2 DAY-HOUR 6- 6 5- 6 8- 6 1- 6 8- 6 12- 9 25- 6 29- 6 24- 6 20- 6 29- 6 11-18 MIN. QNH PRESSURE IN HPA 1011.8 1009.2 1004.9 1001.3 1000.6 993.2 992.6 993.1 998.5 1006.3 1011.2 1008.4 992.6 DAY-HOUR 25-12 10-12 30-15 16- 0 28-15 30-15 12-15 12-15 2-15 10-12 2-12 30-12 MEAN QFF PRESSURE IN HPA 1018.8 1016.6 1014.7 1009.3 1007.6 1002.5 997.3 998.1 1005.7 1012.6 1017.4 1019.8 1010.0 MAX. QFF PRESSURE IN HPA 1023.9 1023.7 1022.6 1017.8 1013.4 1008.8 1001.8 1002.4 1015.1 1017.6 1023.0 1027.5 1027.5 DAY-HOUR 6- 6 5- 6 8- 6 1- 6 8- 6 12- 9 25- 6 29- 6 24- 6 20- 6 29- 6 11-18 MIN. QFF PRESSURE IN HPA 1012.1 1009.5 1005.2 1001.5 1000.8 993.4 992.8 993.3 998.7 1006.5 1011.5 1008.7 992.8 DAY-HOUR 25-12 10-12 30-15 16- 0 28-15 30-15 12-15 12-15 2-15 10-12 2-12 30-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1018.0 1015.8 1013.6 1008.1 1006.2 1001.2 995.9 996.7 1004.3 1011.3 1016.2 1018.7 1008.8 MAX. QFE PRESSURE IN HPA 1021.0 1020.3 1020.1 1013.8 1010.6 1006.2 999.5 999.7 1011.6 1013.9 1020.8 1025.1 1025.1 DAY 6 5 8 1 4 1 4 30 24 13 30 12 MIN. QFE PRESSURE IN HPA 1012.4 1010.1 1006.8 1000.8 1000.7 994.8 992.8 993.5 998.3 1006.7 1011.0 1008.9 992.8 DAY 25 12 5 16 29 30 13 7 3 1 3 2 MEAN QNH PRESSURE IN HPA 1018.5 1016.2 1014.1 1008.6 1006.7 1001.7 996.4 997.2 1004.8 1011.8 1016.7 1019.2 1009.3 MAX. QNH PRESSURE IN HPA 1021.5 1020.8 1020.6 1014.3 1011.1 1006.7 1000.0 1000.2 1012.1 1014.4 1021.3 1025.6 1025.6 DAY 6 5 8 1 4 1 4 30 24 13 30 12 MIN. QNH PRESSURE IN HPA 1012.9 1010.6 1007.3 1001.3 1001.2 995.3 993.3 994.0 998.8 1007.2 1011.5 1009.4 993.3 DAY 25 12 5 16 29 30 13 7 3 1 3 2 MEAN QFF PRESSURE IN HPA 1018.7 1016.5 1014.4 1008.9 1006.9 1002.0 996.6 997.4 1005.1 1012.1 1017.0 1019.4 1009.6 MAX. QFF PRESSURE IN HPA 1021.8 1021.1 1020.9 1014.6 1011.4 1006.9 1000.2 1000.4 1012.3 1014.7 1021.6 1025.9 1025.9 DAY 6 5 8 1 4 1 4 30 24 30 30 12 MIN. QFF PRESSURE IN HPA 1013.2 1010.9 1007.6 1001.5 1001.4 995.5 993.5 994.2 999.0 1007.4 1011.7 1009.7 993.5 DAY 25 12 5 16 29 30 13 7 3 1 3 2 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1018.3 1016.0 1014.1 1008.6 1007.0 1001.9 996.8 997.5 1005.0 1012.0 1016.7 1018.9 1009.4 MAX. QFE PRESSURE IN HPA 1021.1 1021.1 1020.6 1014.7 1011.3 1006.9 1000.3 1000.8 1012.3 1014.9 1020.7 1024.8 1024.8 DAY 6 5 8 1 8 1 25 29 24 13 29 12 MIN. QFE PRESSURE IN HPA 1012.3 1010.6 1005.8 1001.9 1002.7 995.0 993.3 993.7 998.6 1007.1 1011.8 1008.4 993.3 DAY 25 10 16 16 6 30 1 12 2 1 1 2 MEAN QNH PRESSURE IN HPA 1018.8 1016.5 1014.6 1009.1 1007.5 1002.4 997.2 998.0 1005.5 1012.4 1017.2 1019.4 1009.9 MAX. QNH PRESSURE IN HPA 1021.6 1021.6 1021.1 1015.2 1011.8 1007.4 1000.8 1001.3 1012.8 1015.4 1021.2 1025.3 1025.3 DAY 6 5 8 1 8 1 25 29 24 13 29 12 MIN. QNH PRESSURE IN HPA 1012.8 1011.1 1006.3 1002.4 1003.2 995.5 993.8 994.2 999.1 1007.6 1012.3 1008.9 993.8 DAY 25 10 16 16 6 30 1 12 2 1 1 2 MEAN QFF PRESSURE IN HPA 1019.0 1016.8 1014.8 1009.4 1007.8 1002.6 997.5 998.2 1005.7 1012.7 1017.5 1019.7 1010.2 MAX. QFF PRESSURE IN HPA 1021.9 1021.9 1021.4 1015.5 1012.1 1007.6 1001.0 1001.5 1013.0 1015.7 1021.5 1025.6 1025.6 DAY 6 5 8 1 8 1 25 29 24 20 29 12 MIN. QFF PRESSURE IN HPA 1013.1 1011.4 1006.6 1002.7 1003.5 995.7 994.0 994.4 999.3 1007.8 1012.6 1009.2 994.0 DAY 25 10 16 16 6 30 1 12 2 1 1 2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1019.9 1017.3 1015.4 1010.1 1008.2 1002.9 997.7 998.6 1006.5 1013.5 1018.4 1020.5 1010.7 MAX. QFE PRESSURE IN HPA 1023.1 1022.9 1021.8 1017.0 1012.7 1008.0 1001.1 1001.7 1014.4 1016.8 1022.2 1026.5 1026.5 DAY 6 5 8 1 8 12 25 29 24 20 29 12 MIN. QFE PRESSURE IN HPA 1013.8 1010.6 1007.7 1004.2 1003.5 995.5 994.1 994.4 999.8 1008.5 1013.3 1010.5 994.1 DAY 25 25 16 16 6 30 12 12 2 10 3 2 MEAN QNH PRESSURE IN HPA 1020.4 1017.8 1015.9 1010.6 1008.7 1003.4 998.2 999.0 1007.0 1014.0 1018.8 1021.0 1011.2 MAX. QNH PRESSURE IN HPA 1023.6 1023.4 1022.3 1017.5 1013.2 1008.5 1001.6 1002.2 1014.9 1017.3 1022.7 1027.0 1027.0 DAY 6 5 8 1 8 12 25 29 24 20 29 12 MIN. QNH PRESSURE IN HPA 1014.3 1011.1 1008.2 1004.7 1004.0 996.0 994.6 994.9 1000.3 1009.0 1013.8 1011.0 994.6 DAY 25 25 16 16 6 30 12 12 2 10 3 2 MEAN QFF PRESSURE IN HPA 1020.7 1018.1 1016.2 1010.9 1009.0 1003.7 998.4 999.3 1007.2 1014.2 1019.1 1021.3 1011.5 MAX. QFF PRESSURE IN HPA 1023.9 1023.7 1022.6 1017.8 1013.4 1008.7 1001.8 1002.4 1015.1 1017.6 1023.0 1027.3 1027.3 DAY 6 5 8 1 8 12 25 29 24 20 29 12 MIN. QFF PRESSURE IN HPA 1014.6 1011.4 1008.5 1004.9 1004.2 996.2 994.8 995.1 1000.5 1009.3 1014.1 1011.3 994.8 DAY 25 25 27 29 28 30 12 12 2 10 3 2 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1018.3 1016.4 1014.8 1009.6 1007.6 1002.6 997.5 998.3 1005.8 1012.4 1017.1 1019.4 1010.0 MAX. QFE PRESSURE IN HPA 1022.0 1020.8 1021.1 1016.4 1011.3 1008.1 1000.7 1001.4 1013.4 1015.5 1021.3 1025.6 1025.6 DAY 5 5 8 1 7 12 4 29 24 29 29 6 MIN. QFE PRESSURE IN HPA 1011.8 1011.3 1007.1 1003.3 1002.1 994.7 993.9 994.4 999.4 1007.6 1013.0 1009.4 993.9 DAY 25 10 27 24 28 30 12 12 2 10 3 30 MEAN QNH PRESSURE IN HPA 1018.8 1016.9 1015.3 1010.1 1008.1 1003.1 997.9 998.7 1006.3 1012.9 1017.6 1019.9 1010.5 MAX. QNH PRESSURE IN HPA 1022.5 1021.3 1021.6 1016.9 1011.8 1008.6 1001.2 1001.9 1013.9 1016.0 1021.8 1026.1 1026.1 DAY 5 5 8 1 7 12 4 29 24 29 29 6 MIN. QNH PRESSURE IN HPA 1012.3 1011.8 1007.6 1003.8 1002.6 995.2 994.4 994.9 999.9 1008.1 1013.5 1009.9 994.4 DAY 25 10 27 24 28 30 12 12 2 10 3 30 MEAN QFF PRESSURE IN HPA 1019.1 1017.2 1015.5 1010.3 1008.4 1003.4 998.2 999.0 1006.5 1013.2 1017.9 1020.2 1010.7 MAX. QFF PRESSURE IN HPA 1022.8 1021.6 1021.9 1017.2 1012.1 1008.8 1001.4 1002.1 1014.1 1016.3 1022.1 1026.4 1026.4 DAY 5 5 8 1 7 12 4 29 24 29 29 6 MIN. QFF PRESSURE IN HPA 1012.6 1012.1 1007.9 1004.0 1002.8 995.4 994.6 995.1 1000.1 1008.3 1013.7 1010.2 994.6 DAY 25 25 27 24 28 30 28 12 2 10 3 30 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1016.9 1014.7 1012.9 1007.8 1006.3 1001.6 996.4 996.9 1004.3 1010.8 1015.6 1017.9 1008.5 MAX. QFE PRESSURE IN HPA 1021.1 1019.6 1019.9 1014.4 1010.2 1007.3 999.6 1000.1 1011.5 1013.7 1019.7 1023.7 1023.7 DAY 5 5 7 1 7 12 3 29 24 20 29 28 MIN. QFE PRESSURE IN HPA 1011.3 1008.7 1005.3 1001.5 1000.8 993.2 992.8 993.3 998.5 1005.8 1010.7 1007.9 992.8 DAY 25 10 30 24 28 30 12 12 2 10 2 30 MEAN QNH PRESSURE IN HPA 1017.4 1015.2 1013.4 1008.3 1006.8 1002.1 996.9 997.4 1004.8 1011.3 1016.1 1018.4 1009.0 MAX. QNH PRESSURE IN HPA 1021.6 1020.1 1020.4 1014.9 1010.7 1007.8 1000.1 1000.6 1012.0 1014.2 1020.2 1024.2 1024.2 DAY 5 5 7 1 7 12 3 29 24 20 29 28 MIN. QNH PRESSURE IN HPA 1011.8 1009.2 1005.8 1002.0 1001.3 993.7 993.3 993.8 999.0 1006.3 1011.2 1008.4 993.3 DAY 25 10 30 24 28 30 12 12 2 10 2 30 MEAN QFF PRESSURE IN HPA 1017.6 1015.5 1013.7 1008.6 1007.0 1002.3 997.1 997.6 1005.1 1011.5 1016.4 1018.7 1009.3 MAX. QFF PRESSURE IN HPA 1021.9 1020.4 1020.7 1015.2 1011.0 1008.0 1000.3 1000.8 1012.2 1014.5 1020.5 1024.5 1024.5 DAY 5 5 7 1 7 12 3 29 24 29 29 28 MIN. QFF PRESSURE IN HPA 1012.1 1009.5 1006.1 1002.2 1001.5 993.9 993.5 994.0 999.2 1006.5 1011.5 1008.7 993.5 DAY 25 10 30 24 28 30 12 12 2 10 2 30 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1017.3 1015.1 1012.9 1007.7 1005.7 1000.9 995.7 996.4 1004.1 1011.0 1016.0 1018.4 1008.4 MAX. QFE PRESSURE IN HPA 1021.7 1019.6 1019.4 1014.0 1009.9 1007.0 999.3 999.6 1011.2 1014.1 1019.9 1025.0 1025.0 DAY 5 5 8 1 3 12 3 29 24 29 29 11 MIN. QFE PRESSURE IN HPA 1011.8 1008.8 1004.4 1000.9 1000.1 992.7 992.1 992.6 998.0 1006.1 1011.2 1008.7 992.1 DAY 25 10 30 15 28 30 12 12 2 10 2 30 MEAN QNH PRESSURE IN HPA 1017.8 1015.6 1013.4 1008.2 1006.1 1001.4 996.2 996.9 1004.6 1011.5 1016.5 1018.9 1008.9 MAX. QNH PRESSURE IN HPA 1022.2 1020.1 1019.9 1014.5 1010.4 1007.5 999.8 1000.1 1011.7 1014.6 1020.4 1025.5 1025.5 DAY 5 5 8 1 3 12 3 29 24 29 29 11 MIN. QNH PRESSURE IN HPA 1012.3 1009.3 1004.9 1001.4 1000.6 993.2 992.6 993.1 998.5 1006.6 1011.7 1009.2 992.6 DAY 25 10 30 15 28 30 12 12 2 10 2 30 MEAN QFF PRESSURE IN HPA 1018.1 1015.8 1013.7 1008.5 1006.4 1001.6 996.4 997.2 1004.9 1011.7 1016.8 1019.2 1009.2 MAX. QFF PRESSURE IN HPA 1022.5 1020.4 1020.2 1014.8 1010.7 1007.7 1000.0 1000.3 1011.9 1014.9 1020.7 1025.8 1025.8 DAY 5 5 8 1 3 12 3 29 24 29 29 11 MIN. QFF PRESSURE IN HPA 1012.6 1009.6 1005.2 1001.7 1000.8 993.4 992.8 993.3 998.7 1006.9 1012.0 1009.5 992.8 DAY 25 10 30 15 28 30 12 12 2 10 2 30 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1018.1 1015.8 1014.0 1008.5 1006.8 1001.7 996.5 997.4 1005.1 1011.9 1016.7 1019.1 1009.3 MAX. QFE PRESSURE IN HPA 1022.4 1020.9 1020.3 1015.3 1011.0 1007.5 1000.2 1000.2 1011.8 1014.9 1020.8 1026.7 1026.7 DAY 5 4 7 1 3 12 3 29 23 19 29 11 MIN. QFE PRESSURE IN HPA 1012.0 1010.4 1007.1 1001.6 1001.9 993.2 992.4 994.0 998.5 1007.0 1011.0 1008.6 992.4 DAY 25 24 30 15 28 30 12 7 2 10 2 30 MEAN QNH PRESSURE IN HPA 1018.6 1016.3 1014.5 1009.0 1007.3 1002.2 997.0 997.8 1005.5 1012.4 1017.1 1019.6 1009.8 MAX. QNH PRESSURE IN HPA 1022.9 1021.4 1020.8 1015.8 1011.5 1008.0 1000.7 1000.7 1012.3 1015.4 1021.3 1027.2 1027.2 DAY 5 4 7 1 3 12 3 29 23 19 29 11 MIN. QNH PRESSURE IN HPA 1012.5 1010.9 1007.6 1002.1 1002.4 993.7 992.9 994.5 999.0 1007.5 1011.5 1009.1 992.9 DAY 25 24 30 15 28 30 12 7 2 10 2 30 MEAN QFF PRESSURE IN HPA 1018.9 1016.6 1014.8 1009.3 1007.6 1002.4 997.2 998.1 1005.8 1012.6 1017.4 1019.9 1010.1 MAX. QFF PRESSURE IN HPA 1023.2 1021.7 1021.1 1016.1 1011.8 1008.2 1000.9 1000.9 1012.5 1015.7 1021.6 1027.5 1027.5 DAY 5 4 7 1 3 12 3 29 23 29 29 11 MIN. QFF PRESSURE IN HPA 1012.8 1011.2 1007.9 1002.3 1002.6 993.9 993.1 994.7 999.2 1007.8 1011.7 1009.4 993.1 DAY 25 24 30 15 28 30 12 7 2 10 2 30 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1017.9 1015.9 1014.2 1008.4 1007.0 1001.5 996.6 997.2 1004.9 1011.8 1016.6 1019.1 1009.2 MAX. QFE PRESSURE IN HPA 1021.4 1020.8 1020.5 1014.2 1012.0 1007.0 1000.0 1000.0 1011.8 1014.7 1020.4 1026.0 1026.0 DAY 5 4 7 1 7 12 3 29 23 29 29 11 MIN. QFE PRESSURE IN HPA 1012.6 1009.3 1008.0 1001.1 1001.1 993.2 993.1 993.7 998.3 1007.4 1010.8 1009.1 993.1 DAY 24 24 30 15 28 30 12 7 2 9 2 30 MEAN QNH PRESSURE IN HPA 1018.4 1016.4 1014.7 1008.9 1007.5 1002.0 997.0 997.7 1005.4 1012.3 1017.1 1019.6 1009.7 MAX. QNH PRESSURE IN HPA 1021.9 1021.3 1021.0 1014.7 1012.5 1007.5 1000.5 1000.5 1012.3 1015.2 1020.9 1026.5 1026.5 DAY 5 4 7 1 7 12 3 29 23 29 29 11 MIN. QNH PRESSURE IN HPA 1013.1 1009.8 1008.5 1001.6 1001.6 993.7 993.6 994.2 998.8 1007.9 1011.3 1009.6 993.6 DAY 24 24 30 15 28 30 12 7 2 9 2 30 MEAN QFF PRESSURE IN HPA 1018.7 1016.7 1015.0 1009.1 1007.7 1002.2 997.3 997.9 1005.6 1012.5 1017.4 1019.9 1010.0 MAX. QFF PRESSURE IN HPA 1022.2 1021.6 1021.3 1015.0 1012.7 1007.7 1000.7 1000.7 1012.5 1015.5 1021.2 1026.8 1026.8 DAY 5 4 7 1 7 12 3 31 23 29 29 11 MIN. QFF PRESSURE IN HPA 1013.4 1010.1 1008.8 1001.8 1001.8 993.9 993.8 994.4 999.0 1008.1 1011.5 1009.9 993.8 DAY 24 24 30 15 28 30 12 7 2 9 2 30 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.1 15.0 20.9 23.5 30.4 35.7 35.7 34.7 31.0 23.2 18.8 11.0 23.9 MINIMUN AIR TEMPERATURE (C) 1.4 9.1 14.6 16.8 21.5 26.7 26.7 25.5 21.8 14.3 11.8 5.2 16.3 DAYS WITH MINIMUM TEMP. >=21 0 0 2 2 17 29 31 31 20 1 0 0 133 DAYS WITH MINIMUM TEMP. <=-4 4 0 0 0 0 0 0 0 0 0 0 0 4 DAYS WITH FREEZING MIN.<= 0 12 0 0 0 0 0 0 0 0 0 0 3 15 TEMPERATURE RECORDS LOWEST(C) -4.0 3.0 9.0 11.0 13.0 20.0 24.0 22.0 17.0 10.0 4.0 0.0 -4.0 DAY 20 1 3 12 2 1 1 26 28 27 29 27 MAXIMUM AIR TEMPERATURE (C) 14.0 21.9 28.0 30.7 38.9 44.3 44.4 43.4 41.2 34.1 27.1 17.6 32.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 9 20 30 30 31 31 30 31 11 0 223 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 20.0 28.0 33.0 35.0 45.0 47.0 48.0 47.0 45.0 39.0 32.0 26.0 48.0 DAY 17 25 27 4 22 3 17 28 13 2 1 8 DIF. BETWEEN (MAX.-MIN.) (C) 12.6 12.8 13.4 13.9 17.4 17.6 17.7 17.9 19.4 19.8 15.3 12.4 15.8 MEAN DAILY TEMP. (MDT) (C) 7.7 15.5 21.3 23.8 30.2 35.5 35.6 34.5 31.5 24.2 19.5 11.4 24.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 33.5 86.0 284.5 435.0 451.5 417.0 314.5 99.0 18.0 0.0 2139.0 HEATING DEG. DAYS(BASE 18 0C) 320.0 77.5 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26.0 203.5 632.0 DEWPOINT (MEAN C) -2.0 5.3 7.2 6.9 8.2 8.5 13.4 10.5 9.1 6.7 7.7 4.9 7.2 MIXING RATIO (G/KG) 3.33 5.74 6.50 6.58 7.21 7.44 10.41 8.29 7.54 6.35 6.99 5.61 6.83 VAPOUR PRESSURE (HPA) 5.45 9.28 10.46 10.55 11.53 11.80 16.36 13.11 12.02 10.23 11.27 9.10 10.93 SATURATION DEF. (HPA) 5.15 8.44 15.31 19.57 34.86 49.53 44.83 44.74 35.84 20.44 11.93 4.67 24.61 RELATIVE HUMIDITY (MEAN %) 56 57 46 40 30 23 31 26 30 41 53 70 42 RELATIVE HUMIDITY (MAX. %) 82 80 73 67 57 43 56 44 52 68 77 90 66 RELATIVE HUMIDITY (MIN. %) 30 31 22 16 10 8 12 12 11 15 26 47 20 RELATIVE HUMIDITY (MEAN% 03UTC) 76 75 68 64 50 38 50 41 47 60 71 85 60 RELATIVE HUMIDITY (MEAN% 09UTC) 36 41 27 20 12 9 16 14 15 19 33 54 25 RELATIVE HUMIDITY (MEAN% 15UTC) 44 41 32 26 19 14 20 19 20 31 46 63 31 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 4.0 7.2 2.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 34.0 47.4 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 0 1 1 DAYS WITH PRECIPITATION >= 5 0 0 0 0 0 0 0 0 0 0 0 1 1 DAYS WITH PRECIPITATION >= 1 1 2 1 0 0 0 0 0 0 0 0 7 11 DAYS WITH PRECIPITATION 3 5 3 2 0 0 0 0 0 0 1 8 22 GREATEST DAILY PRECIPITATION 4.0 4.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15.0 15.0 DAY 6 29 16 ** ** ** ** ** ** ** ** 12 DAY WITH THUNDER STORM 0 0 1 0 0 0 0 0 0 0 1 2 4 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 5 8 18 19 22 22 25 23 12 9 15 0 178 WIND DIRECTION (PREVAILING) 315 315 315 315 315 315 315 315 315 315 270 315 315 PREVAILING WIND SPEED(KNOTS) 7.8 8.7 9.0 9.6 10.0 11.8 11.8 11.1 9.1 9.0 5.7 5.0 9.6 PREVAILING WIND PERCENT 38.3 23.7 38.7 22.1 37.9 55.0 44.8 55.5 43.8 27.0 23.8 21.5 35.7 CALMS PERCENT OF WIND 12.1 13.4 8.1 9.2 5.2 5.0 5.2 3.2 16.3 26.2 20.0 36.8 13.4 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 247 240 248 240 247 2926 VECTOR WIND DIRECTION (MEAN) 301 298 285 251 323 313 294 301 296 294 277 270 300 VECTOR WIND MAGNITUDE(KNOTS) 4.0 0.6 1.4 1.5 4.8 8.6 6.4 8.5 5.7 3.6 1.5 0.7 3.8 WIND STEADINESES (MEAN %) 72.7 8.7 16.7 19.7 61.5 91.5 75.3 93.4 89.1 75.0 27.8 18.4 54.3 WIND SPEED (MEAN KNOTS) 5.5 6.9 8.4 7.6 7.8 9.4 8.5 9.1 6.4 4.8 5.4 3.8 7.0 FASTEST WIND DIRECTION 330 150 150 140 330 330 300 320 300 340 330 150 150 FASTEST WIND SPEED (KNOTS) 26 28 28 24 24 28 26 28 20 20 20 22 28 DAY 19 3 12 17 11 19 11 20 7 6 28 11 DAYS WITH SKY CLEAR (0-2)/8 24 15 21 14 25 30 31 31 30 30 19 17 287 DAYS WITH P.CLOUDY (3-6)/8 4 11 8 14 5 0 0 0 0 1 10 9 62 DAYS WITH CLOUDY (7-8)/8 3 3 2 2 1 0 0 0 0 0 1 5 17 DAYS WITH VISIBILITY =< 2 KM 2 4 9 13 12 16 14 17 5 3 9 3 107 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1023.3 1015.6 1012.6 1009.9 1007.7 999.9 996.2 996.8 1004.0 1013.0 1016.9 1020.4 1009.7 MAX. QFE PRESSURE IN HPA 1030.2 1023.2 1019.3 1020.0 1013.7 1006.4 1001.9 1000.6 1014.2 1019.2 1024.2 1027.9 1030.2 DAY-HOUR 21- 6 1- 6 2- 6 24- 6 18- 6 3- 6 22- 6 28- 6 29- 6 29- 6 29- 6 3- 6 MIN. QFE PRESSURE IN HPA 1009.9 1005.8 1003.5 999.4 1002.6 993.8 992.4 992.1 997.1 1005.3 1009.4 1012.9 992.1 DAY-HOUR 18-12 29-21 12- 0 21-12 20-15 26-15 3-15 13-15 2-15 2-12 22-12 12-15 MEAN QNH PRESSURE IN HPA 1023.8 1016.1 1013.1 1010.4 1008.2 1000.4 996.7 997.3 1004.5 1013.5 1017.4 1020.9 1010.2 MAX. QNH PRESSURE IN HPA 1030.7 1023.7 1019.8 1020.5 1014.2 1006.9 1002.4 1001.1 1014.7 1019.7 1024.7 1028.4 1030.7 DAY-HOUR 21- 6 1- 6 2- 6 24- 6 18- 6 3- 6 22- 6 28- 6 29- 6 29- 6 29- 6 3- 6 MIN. QNH PRESSURE IN HPA 1010.4 1006.3 1004.0 999.9 1003.1 994.3 992.9 992.6 997.6 1005.8 1009.9 1013.4 992.6 DAY-HOUR 18-12 29-21 12- 0 21-12 20-15 26-15 3-15 13-15 2-15 2-12 22-12 12-15 MEAN QFF PRESSURE IN HPA 1024.1 1016.4 1013.4 1010.7 1008.4 1000.6 996.9 997.5 1004.7 1013.7 1017.7 1021.2 1010.4 MAX. QFF PRESSURE IN HPA 1031.0 1024.0 1020.1 1020.8 1014.5 1007.1 1002.6 1001.3 1015.0 1020.0 1025.0 1028.7 1031.0 DAY-HOUR 21- 6 1- 6 2- 6 24- 6 18- 6 3- 6 22- 6 28- 6 29- 6 29- 6 29- 6 3- 6 MIN. QFF PRESSURE IN HPA 1010.7 1006.6 1004.3 1000.1 1003.3 994.5 993.1 992.8 997.8 1006.0 1010.2 1013.7 992.8 DAY-HOUR 18-12 29-21 12- 0 21-12 20-15 26-15 3-15 13-15 2-15 2-12 22-12 12-15 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1023.1 1015.8 1012.2 1009.4 1007.3 999.5 995.7 996.3 1003.3 1012.5 1016.6 1020.3 1009.3 MAX. QFE PRESSURE IN HPA 1028.5 1023.0 1017.9 1019.1 1012.0 1004.7 1000.0 999.2 1010.9 1017.6 1023.5 1026.8 1028.5 DAY 21 1 14 24 2 3 22 15 29 30 29 4 MIN. QFE PRESSURE IN HPA 1016.0 1010.9 1003.5 1000.3 1003.2 995.0 993.4 992.3 998.5 1005.4 1011.6 1013.7 992.3 DAY 19 24 12 21 21 27 25 13 3 2 22 13 MEAN QNH PRESSURE IN HPA 1023.6 1016.3 1012.7 1009.8 1007.8 1000.0 996.2 996.7 1003.8 1012.9 1017.1 1020.8 1009.8 MAX. QNH PRESSURE IN HPA 1029.0 1023.5 1018.4 1019.6 1012.5 1005.2 1000.5 999.7 1011.4 1018.1 1024.0 1027.3 1029.0 DAY 21 1 14 24 2 3 22 15 29 30 29 4 MIN. QNH PRESSURE IN HPA 1016.5 1011.4 1004.0 1000.8 1003.7 995.5 993.9 992.8 999.0 1005.9 1012.1 1014.2 992.8 DAY 19 24 12 21 21 27 25 13 3 2 22 13 MEAN QFF PRESSURE IN HPA 1023.9 1016.6 1013.0 1010.1 1008.0 1000.2 996.4 997.0 1004.0 1013.2 1017.3 1021.1 1010.1 MAX. QFF PRESSURE IN HPA 1029.3 1023.8 1018.7 1019.9 1012.8 1005.4 1000.7 999.9 1011.6 1018.4 1024.3 1027.6 1029.3 DAY 21 1 14 24 2 3 22 15 29 30 29 4 MIN. QFF PRESSURE IN HPA 1016.8 1011.7 1004.3 1001.0 1003.9 995.7 994.1 993.0 999.2 1006.1 1012.4 1014.5 993.0 DAY 19 24 12 21 21 27 25 13 3 2 22 13 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1023.3 1016.0 1012.8 1009.8 1007.9 1000.1 996.3 997.0 1004.1 1013.1 1017.2 1020.6 1009.8 MAX. QFE PRESSURE IN HPA 1028.7 1022.4 1018.0 1019.3 1012.2 1005.3 1000.6 1000.0 1012.6 1018.1 1023.6 1026.9 1028.7 DAY 21 1 2 24 3 3 22 15 29 30 29 4 MIN. QFE PRESSURE IN HPA 1014.5 1011.6 1004.6 999.8 1003.9 995.5 993.4 992.9 999.2 1006.2 1011.1 1014.4 992.9 DAY 18 13 12 17 6 25 12 13 3 2 22 17 MEAN QNH PRESSURE IN HPA 1023.8 1016.5 1013.3 1010.3 1008.4 1000.5 996.8 997.4 1004.6 1013.6 1017.7 1021.1 1010.3 MAX. QNH PRESSURE IN HPA 1029.2 1022.9 1018.5 1019.8 1012.7 1005.8 1001.1 1000.5 1013.1 1018.6 1024.1 1027.4 1029.2 DAY 21 1 2 24 3 3 22 15 29 30 29 4 MIN. QNH PRESSURE IN HPA 1015.0 1012.1 1005.1 1000.3 1004.4 996.0 993.9 993.4 999.7 1006.7 1011.6 1014.9 993.4 DAY 18 13 12 17 6 25 12 13 3 2 22 17 MEAN QFF PRESSURE IN HPA 1024.1 1016.8 1013.6 1010.6 1008.6 1000.8 997.1 997.7 1004.8 1013.9 1018.0 1021.4 1010.6 MAX. QFF PRESSURE IN HPA 1029.5 1023.2 1018.8 1020.1 1013.0 1006.0 1001.3 1000.7 1013.4 1018.9 1024.4 1027.7 1029.5 DAY 21 1 2 24 3 3 22 15 29 30 29 4 MIN. QFF PRESSURE IN HPA 1015.3 1012.4 1005.4 1000.5 1004.6 996.2 994.1 993.6 999.9 1007.0 1011.9 1015.2 993.6 DAY 18 13 12 17 6 25 12 13 3 2 22 17 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1024.9 1017.3 1014.2 1011.3 1009.1 1001.1 997.4 997.9 1005.4 1014.5 1018.5 1022.1 1011.1 MAX. QFE PRESSURE IN HPA 1030.2 1023.2 1019.3 1020.0 1013.7 1006.4 1001.9 1000.6 1014.2 1019.2 1024.2 1027.9 1030.2 DAY 21 1 2 24 18 3 22 28 29 29 29 3 MIN. QFE PRESSURE IN HPA 1014.7 1012.4 1006.4 1000.8 1003.7 996.7 994.6 994.1 1000.1 1007.9 1011.5 1016.4 994.1 DAY 18 29 12 17 6 26 3 13 2 2 22 31 MEAN QNH PRESSURE IN HPA 1025.4 1017.8 1014.7 1011.7 1009.6 1001.6 997.9 998.4 1005.9 1015.0 1019.0 1022.6 1011.6 MAX. QNH PRESSURE IN HPA 1030.7 1023.7 1019.8 1020.5 1014.2 1006.9 1002.4 1001.1 1014.7 1019.7 1024.7 1028.4 1030.7 DAY 21 1 2 24 18 3 22 28 29 29 29 3 MIN. QNH PRESSURE IN HPA 1015.2 1012.9 1006.9 1001.3 1004.2 997.2 995.1 994.6 1000.6 1008.4 1012.0 1016.9 994.6 DAY 18 29 12 17 6 26 3 13 2 2 22 31 MEAN QFF PRESSURE IN HPA 1025.7 1018.1 1015.0 1012.0 1009.9 1001.8 998.1 998.6 1006.2 1015.3 1019.3 1022.9 1011.9 MAX. QFF PRESSURE IN HPA 1031.0 1024.0 1020.1 1020.8 1014.5 1007.1 1002.6 1001.3 1015.0 1020.0 1025.0 1028.7 1031.0 DAY 21 1 2 24 18 3 22 28 29 29 29 3 MIN. QFF PRESSURE IN HPA 1015.5 1013.2 1007.2 1001.5 1004.4 997.4 995.3 994.8 1000.8 1008.7 1012.3 1017.2 994.8 DAY 18 29 12 17 6 26 3 13 2 2 22 31 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1023.7 1016.2 1013.4 1010.8 1008.5 1000.7 997.1 997.5 1004.7 1013.5 1017.3 1020.7 1010.3 MAX. QFE PRESSURE IN HPA 1029.4 1021.2 1018.9 1019.2 1012.8 1005.8 1001.7 1000.3 1013.1 1018.3 1022.9 1026.8 1029.4 DAY 30 1 2 24 2 1 21 5 29 29 28 3 MIN. QFE PRESSURE IN HPA 1011.7 1010.6 1007.1 1000.2 1003.0 995.9 994.2 993.7 998.9 1007.0 1010.2 1014.8 993.7 DAY 18 29 12 17 6 26 3 13 2 2 22 24 MEAN QNH PRESSURE IN HPA 1024.2 1016.7 1013.8 1011.3 1008.9 1001.2 997.6 997.9 1005.2 1014.0 1017.8 1021.2 1010.8 MAX. QNH PRESSURE IN HPA 1029.9 1021.7 1019.4 1019.7 1013.3 1006.3 1002.2 1000.8 1013.6 1018.8 1023.4 1027.3 1029.9 DAY 30 1 2 24 2 1 21 5 29 29 28 3 MIN. QNH PRESSURE IN HPA 1012.2 1011.1 1007.6 1000.7 1003.5 996.4 994.7 994.2 999.4 1007.5 1010.7 1015.3 994.2 DAY 18 29 12 17 6 26 3 13 2 2 22 24 MEAN QFF PRESSURE IN HPA 1024.6 1017.0 1014.1 1011.5 1009.2 1001.4 997.9 998.2 1005.4 1014.3 1018.1 1021.5 1011.1 MAX. QFF PRESSURE IN HPA 1030.2 1022.0 1019.7 1020.0 1013.6 1006.5 1002.4 1001.0 1013.8 1019.1 1023.7 1027.6 1030.2 DAY 30 1 2 24 2 1 21 5 29 29 28 3 MIN. QFF PRESSURE IN HPA 1012.5 1011.4 1007.9 1000.9 1003.7 996.6 994.9 994.4 999.6 1007.7 1011.0 1015.6 994.4 DAY 18 29 12 17 6 26 3 13 2 2 22 24 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1022.0 1014.1 1011.4 1009.1 1007.1 999.6 995.8 996.2 1003.2 1012.1 1015.7 1019.3 1008.8 MAX. QFE PRESSURE IN HPA 1027.9 1019.4 1016.5 1017.7 1011.5 1004.5 1000.9 998.8 1011.4 1016.8 1022.4 1025.9 1027.9 DAY 21 16 14 24 2 1 21 5 29 29 28 3 MIN. QFE PRESSURE IN HPA 1009.9 1008.4 1006.9 999.4 1002.7 994.3 992.8 992.4 997.2 1005.3 1009.4 1013.5 992.4 DAY 18 29 16 21 6 26 3 13 2 2 22 12 MEAN QNH PRESSURE IN HPA 1022.5 1014.6 1011.9 1009.6 1007.6 1000.0 996.3 996.6 1003.7 1012.5 1016.2 1019.8 1009.3 MAX. QNH PRESSURE IN HPA 1028.4 1019.9 1017.0 1018.2 1012.0 1005.0 1001.4 999.3 1011.9 1017.3 1022.9 1026.4 1028.4 DAY 21 16 14 24 2 1 21 5 29 29 28 3 MIN. QNH PRESSURE IN HPA 1010.4 1008.9 1007.4 999.9 1003.2 994.8 993.3 992.9 997.7 1005.8 1009.9 1014.0 992.9 DAY 18 29 16 21 6 26 3 13 2 2 22 12 MEAN QFF PRESSURE IN HPA 1022.8 1014.9 1012.2 1009.9 1007.8 1000.3 996.5 996.9 1003.9 1012.8 1016.5 1020.1 1009.5 MAX. QFF PRESSURE IN HPA 1028.7 1020.2 1017.3 1018.5 1012.3 1005.2 1001.6 999.5 1012.1 1017.6 1023.2 1026.7 1028.7 DAY 21 16 14 24 2 1 21 5 29 29 28 3 MIN. QFF PRESSURE IN HPA 1010.7 1009.2 1007.7 1000.1 1003.4 995.0 993.5 993.1 997.9 1006.0 1010.2 1014.3 993.1 DAY 18 29 16 21 6 26 3 13 2 2 22 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1964 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 1014.5 1011.6 1009.0 1006.7 999.1 995.2 996.0 1003.2 1012.3 1016.1 1019.7 1008.8 MAX. QFE PRESSURE IN HPA 1028.1 1020.0 1016.4 1016.8 1011.4 1004.3 1000.2 998.9 1011.5 1016.9 1022.7 1025.5 1028.1 DAY 21 16 2 24 1 1 21 27 29 29 28 3 MIN. QFE PRESSURE IN HPA 1010.1 1007.8 1007.5 999.7 1002.6 993.8 992.4 992.1 997.1 1005.7 1010.1 1012.9 992.1 DAY 18 29 25 21 20 26 3 13 2 2 22 12 MEAN QNH PRESSURE IN HPA 1023.1 1015.0 1012.1 1009.5 1007.1 999.6 995.7 996.4 1003.6 1012.8 1016.6 1020.2 1009.3 MAX. QNH PRESSURE IN HPA 1028.6 1020.5 1016.9 1017.3 1011.9 1004.8 1000.7 999.4 1012.0 1017.4 1023.2 1026.0 1028.6 DAY 21 16 2 24 1 1 21 27 29 29 28 3 MIN. QNH PRESSURE IN HPA 1010.6 1008.3 1008.0 1000.2 1003.1 994.3 992.9 992.6 997.6 1006.2 1010.6 1013.4 992.6 DAY 18 29 25 21 20 26 3 13 2 2 22 12 MEAN QFF PRESSURE IN HPA 1023.4 1015.3 1012.4 1009.7 1007.4 999.8 995.9 996.7 1003.9 1013.0 1016.9 1020.5 1009.6 MAX. QFF PRESSURE IN HPA 1028.9 1020.8 1017.2 1017.6 1012.2 1005.0 1000.9 999.6 1012.3 1017.7 1023.5 1026.3 1028.9 DAY 21 16 2 24 1 1 21 27 29 29 28 3 MIN. QFF PRESSURE IN HPA 1010.9 1008.6 1008.3 1000.4 1003.3 994.5 993.1 992.8 997.8 1006.4 1010.9 1013.7 992.8 DAY 18 29 25 21 20 26 3 13 2 2 22 12 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1023.4 1015.5 1012.7 1010.0 1007.7 999.7 996.1 996.9 1004.2 1013.1 1016.9 1020.5 1009.7 MAX. QFE PRESSURE IN HPA 1028.7 1020.8 1017.7 1019.1 1012.7 1005.0 1000.6 1000.3 1012.4 1017.8 1023.5 1026.6 1028.7 DAY 21 16 14 23 2 1 21 31 29 29 28 3 MIN. QFE PRESSURE IN HPA 1011.0 1007.8 1007.0 1002.1 1003.3 994.4 993.4 992.8 998.6 1006.6 1011.9 1013.8 992.8 DAY 18 29 11 21 20 26 3 12 2 2 20 12 MEAN QNH PRESSURE IN HPA 1023.9 1016.0 1013.2 1010.5 1008.2 1000.2 996.6 997.4 1004.6 1013.6 1017.4 1021.0 1010.2 MAX. QNH PRESSURE IN HPA 1029.2 1021.3 1018.2 1019.6 1013.2 1005.5 1001.1 1000.8 1012.9 1018.3 1024.0 1027.1 1029.2 DAY 21 16 14 23 2 1 21 31 29 29 28 3 MIN. QNH PRESSURE IN HPA 1011.5 1008.3 1007.5 1002.6 1003.8 994.9 993.9 993.3 999.1 1007.1 1012.4 1014.3 993.3 DAY 18 29 11 21 20 26 3 12 2 2 20 12 MEAN QFF PRESSURE IN HPA 1024.2 1016.3 1013.4 1010.8 1008.4 1000.4 996.8 997.6 1004.9 1013.9 1017.7 1021.3 1010.5 MAX. QFF PRESSURE IN HPA 1029.5 1021.6 1018.5 1019.9 1013.5 1005.7 1001.3 1001.0 1013.2 1018.6 1024.3 1027.4 1029.5 DAY 21 16 14 23 2 1 21 31 29 29 28 3 MIN. QFF PRESSURE IN HPA 1011.8 1008.6 1007.8 1002.8 1004.0 995.1 994.1 993.5 999.3 1007.4 1012.7 1014.6 993.5 DAY 18 29 11 21 20 26 3 12 2 2 20 12 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1023.3 1015.5 1012.8 1010.1 1007.7 999.7 996.3 996.9 1004.1 1013.0 1016.9 1020.2 1009.7 MAX. QFE PRESSURE IN HPA 1028.4 1020.9 1017.5 1019.2 1013.0 1004.7 1000.5 1000.5 1011.8 1017.6 1023.8 1026.9 1028.4 DAY 30 16 13 23 1 1 21 31 29 29 28 3 MIN. QFE PRESSURE IN HPA 1013.3 1005.8 1005.9 1001.1 1003.2 995.1 993.4 992.8 998.8 1006.1 1011.6 1013.8 992.8 DAY 18 29 11 21 20 26 25 12 2 2 20 12 MEAN QNH PRESSURE IN HPA 1023.8 1016.0 1013.3 1010.6 1008.2 1000.2 996.7 997.4 1004.6 1013.5 1017.4 1020.7 1010.2 MAX. QNH PRESSURE IN HPA 1028.9 1021.4 1018.0 1019.7 1013.5 1005.2 1001.0 1001.0 1012.3 1018.1 1024.3 1027.4 1028.9 DAY 30 16 13 23 1 1 21 31 29 29 28 3 MIN. QNH PRESSURE IN HPA 1013.8 1006.3 1006.4 1001.6 1003.7 995.6 993.9 993.3 999.3 1006.6 1012.1 1014.3 993.3 DAY 18 29 11 21 20 26 25 12 2 2 20 12 MEAN QFF PRESSURE IN HPA 1024.1 1016.3 1013.6 1010.9 1008.4 1000.4 997.0 997.6 1004.8 1013.7 1017.7 1021.0 1010.5 MAX. QFF PRESSURE IN HPA 1029.2 1021.7 1018.3 1020.0 1013.8 1005.4 1001.2 1001.2 1012.5 1018.4 1024.6 1027.7 1029.2 DAY 30 16 13 23 1 1 21 31 29 29 28 3 MIN. QFF PRESSURE IN HPA 1014.1 1006.6 1006.7 1001.8 1003.9 995.8 994.1 993.5 999.5 1006.8 1012.4 1014.6 993.5 DAY 18 29 11 21 20 26 25 12 2 2 20 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 11.9 14.6 19.5 22.8 31.4 35.6 36.2 36.5 32.5 27.3 19.8 13.4 25.1 MINIMUN AIR TEMPERATURE (C) 8.1 9.0 13.0 15.9 23.1 26.6 27.6 28.6 23.9 21.1 14.3 7.5 18.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 3 25 30 31 31 26 22 2 0 170 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 1 0 0 0 0 0 0 0 0 0 0 2 3 TEMPERATURE RECORDS LOWEST(C) 0.0 3.0 6.0 7.0 16.0 23.0 25.0 26.0 20.0 15.0 6.0 0.0 0.0 DAY 11 4 16 5 6 17 3 4 9 26 30 22 MAXIMUM AIR TEMPERATURE (C) 16.7 20.9 26.4 29.8 40.1 44.0 44.7 45.6 42.3 34.9 26.9 21.3 32.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 7 14 30 30 31 31 30 25 11 0 209 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.0 27.0 33.0 37.0 46.0 47.0 49.0 48.0 46.0 40.0 32.0 28.0 49.0 DAY 24 28 8 27 21 5 19 22 5 5 4 6 DIF. BETWEEN (MAX.-MIN.) (C) 8.6 11.9 13.4 13.9 17.0 17.4 17.1 17.0 18.4 13.8 12.6 13.8 14.6 MEAN DAILY TEMP. (MDT) (C) 12.4 15.0 19.7 22.8 31.6 35.3 36.1 37.1 33.1 28.0 20.6 14.4 25.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 15.5 79.0 328.5 429.5 469.5 500.0 363.0 221.0 42.0 0.0 2448.0 HEATING DEG. DAYS(BASE 18 0C) 174.5 87.0 18.0 8.0 0.0 0.0 0.0 0.0 0.0 0.0 13.5 116.5 417.5 DEWPOINT (MEAN C) 7.0 4.1 5.7 5.5 9.3 9.0 9.8 16.3 11.8 14.4 8.9 4.8 8.9 MIXING RATIO (G/KG) 6.40 5.32 6.05 5.99 7.73 7.86 8.25 12.96 9.42 10.90 7.53 5.50 7.83 VAPOUR PRESSURE (HPA) 10.35 8.61 9.76 9.62 12.34 12.48 13.03 20.33 14.96 17.39 12.15 8.93 12.49 SATURATION DEF. (HPA) 3.98 8.63 13.97 19.71 36.54 48.29 49.79 43.60 36.94 20.94 12.10 7.38 25.15 RELATIVE HUMIDITY (MEAN %) 74 54 45 38 30 25 25 37 34 51 54 59 44 RELATIVE HUMIDITY (MAX. %) 89 78 70 66 53 50 48 65 60 79 74 80 68 RELATIVE HUMIDITY (MIN. %) 54 29 22 16 12 8 8 14 12 25 31 34 22 RELATIVE HUMIDITY (MEAN% 03UTC) 86 73 69 61 47 46 42 58 53 69 68 76 62 RELATIVE HUMIDITY (MEAN% 09UTC) 63 36 27 22 15 10 10 19 16 31 37 41 27 RELATIVE HUMIDITY (MEAN% 15UTC) 68 41 32 24 19 13 14 24 25 41 48 52 33 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 57.4 0.1 6.3 7.1 0.1 0.0 0.0 0.0 3.0 20.0 4.0 2.3 100.3 DAYS WITH PRECIPITATION >=10 3 0 0 0 0 0 0 0 0 1 0 0 4 DAYS WITH PRECIPITATION >= 5 4 0 0 1 0 0 0 0 0 2 0 0 7 DAYS WITH PRECIPITATION >= 1 7 0 2 2 0 0 0 0 1 3 1 1 17 DAYS WITH PRECIPITATION 10 3 4 6 1 0 0 0 1 4 5 3 37 GREATEST DAILY PRECIPITATION 17.0 0.1 4.2 5.0 0.1 0.0 0.0 0.0 3.0 11.0 4.0 2.3 17.0 DAY 19 4 23 19 2 ** ** ** 30 28 9 28 DAY WITH THUNDER STORM 3 2 2 1 0 0 0 0 1 3 2 0 14 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 3 14 20 9 16 22 19 16 9 10 4 5 147 WIND DIRECTION (PREVAILING) 315 315 315 315 315 315 315 315 315 315 315 315 315 PREVAILING WIND SPEED(KNOTS) 6.4 8.0 6.9 8.1 8.1 9.3 8.9 8.8 8.7 6.3 6.3 6.1 7.9 PREVAILING WIND PERCENT 17.4 30.4 31.9 25.4 37.1 47.5 47.6 31.9 27.1 21.8 37.1 27.4 31.9 CALMS PERCENT OF WIND 34.4 24.6 17.3 22.5 16.5 11.7 7.3 9.3 15.0 13.7 18.3 26.2 18.0 NO. OF WIND OBSERVATION 247 224 248 240 248 240 248 248 240 248 240 248 2919 VECTOR WIND DIRECTION (MEAN) 198 299 275 269 298 306 296 278 294 336 305 292 294 VECTOR WIND MAGNITUDE(KNOTS) 1.3 2.3 1.7 1.2 2.6 5.9 5.5 2.6 3.1 1.3 2.6 2.2 2.5 WIND STEADINESES (MEAN %) 26.0 46.0 29.8 22.2 45.6 86.8 78.6 44.8 62.0 25.0 54.2 52.4 45.5 WIND SPEED (MEAN KNOTS) 5.0 5.0 5.7 5.4 5.7 6.8 7.0 5.8 5.0 5.2 4.8 4.2 5.5 FASTEST WIND DIRECTION 100 270 160 300 150 300 300 330 300 330 340 140 300 FASTEST WIND SPEED (KNOTS) 24 20 20 32 20 20 24 18 28 24 16 18 32 DAY 12 9 11 3 1 16 10 1 2 8 8 24 DAYS WITH SKY CLEAR (0-2)/8 9 19 17 18 24 30 31 30 24 10 13 24 249 DAYS WITH P.CLOUDY (3-6)/8 13 5 7 8 5 0 0 1 6 16 11 5 77 DAYS WITH CLOUDY (7-8)/8 9 4 7 4 2 0 0 0 0 5 6 2 39 DAYS WITH VISIBILITY =< 2 KM 3 7 4 4 4 5 6 3 5 7 0 1 49 DURATION OF SUNSHINE HOURS 122.8 228.2 262.7 ****** 296.5 301.9 337.1 320.9 266.6 223.1 212.0 245.0 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1016.4 1016.4 1014.8 1011.4 1006.5 1001.6 997.2 999.9 1005.5 1011.5 1017.3 1019.0 1009.8 MAX. QFE PRESSURE IN HPA 1027.0 1025.3 1022.8 1022.0 1018.9 1006.9 1002.3 1006.1 1012.7 1018.3 1025.3 1026.4 1027.0 DAY-HOUR 16- 6 25- 6 16- 6 6- 6 4- 6 11- 6 5- 6 14- 6 30- 6 30- 6 28- 6 30- 6 MIN. QFE PRESSURE IN HPA 1003.2 1006.9 1006.7 1001.9 999.1 996.3 992.9 994.9 1000.0 1004.3 1011.3 1012.5 992.9 DAY-HOUR 19-15 9- 3 23- 0 19- 6 30-15 23- 0 27-15 1-15 12-15 9- 0 6-12 24-12 MEAN QNH PRESSURE IN HPA 1016.9 1016.9 1015.3 1011.8 1006.9 1002.1 997.7 1000.4 1006.0 1012.0 1017.8 1019.5 1010.3 MAX. QNH PRESSURE IN HPA 1027.5 1025.8 1023.3 1022.5 1019.4 1007.4 1002.8 1006.6 1013.2 1018.8 1025.8 1026.9 1027.5 DAY-HOUR 16- 6 25- 6 16- 6 6- 6 4- 6 11- 6 5- 6 14- 6 30- 6 30- 6 28- 6 30- 6 MIN. QNH PRESSURE IN HPA 1003.7 1007.4 1007.2 1002.4 999.6 996.8 993.4 995.4 1000.5 1004.8 1011.8 1013.0 993.4 DAY-HOUR 19-15 9- 3 23- 0 19- 6 30-15 23- 0 27-15 1-15 12-15 9- 0 6-12 24-12 MEAN QFF PRESSURE IN HPA 1017.2 1017.2 1015.6 1012.1 1007.2 1002.4 997.9 1000.6 1006.2 1012.2 1018.1 1019.8 1010.5 MAX. QFF PRESSURE IN HPA 1027.8 1026.1 1023.6 1022.8 1019.7 1007.6 1003.0 1006.8 1013.4 1019.1 1026.1 1027.2 1027.8 DAY-HOUR 16- 6 25- 6 16- 6 6- 6 4- 6 11- 6 5- 6 14- 6 30- 6 30- 6 28- 6 30- 6 MIN. QFF PRESSURE IN HPA 1004.0 1007.7 1007.5 1002.6 999.8 997.0 993.6 995.6 1000.7 1005.0 1012.1 1013.3 993.6 DAY-HOUR 19-15 9- 3 23- 0 19- 6 30-15 23- 0 27-15 1-15 12-15 9- 0 6-12 24-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1016.2 1016.2 1014.5 1011.0 1006.0 1001.2 996.7 999.3 1004.9 1010.9 1016.8 1018.7 1009.4 MAX. QFE PRESSURE IN HPA 1025.2 1021.6 1019.9 1020.5 1016.3 1005.4 1000.7 1003.7 1010.3 1016.7 1023.5 1025.1 1025.2 DAY 16 11 16 6 4 11 14 14 30 30 29 30 MIN. QFE PRESSURE IN HPA 1004.8 1007.8 1006.7 1003.5 1001.0 996.3 993.0 995.3 1000.7 1004.3 1012.0 1013.0 993.0 DAY 9 9 23 19 30 23 17 2 13 9 6 8 MEAN QNH PRESSURE IN HPA 1016.7 1016.7 1015.0 1011.5 1006.5 1001.7 997.2 999.8 1005.4 1011.4 1017.3 1019.2 1009.9 MAX. QNH PRESSURE IN HPA 1025.7 1022.1 1020.4 1021.0 1016.8 1005.9 1001.2 1004.2 1010.8 1017.2 1024.0 1025.6 1025.7 DAY 16 11 16 6 4 11 14 14 30 30 29 30 MIN. QNH PRESSURE IN HPA 1005.3 1008.3 1007.2 1004.0 1001.5 996.8 993.5 995.8 1001.2 1004.8 1012.5 1013.5 993.5 DAY 9 9 23 19 30 23 17 2 13 9 6 8 MEAN QFF PRESSURE IN HPA 1017.0 1017.0 1015.3 1011.7 1006.8 1001.9 997.4 1000.1 1005.6 1011.7 1017.6 1019.5 1010.1 MAX. QFF PRESSURE IN HPA 1026.0 1022.4 1020.7 1021.3 1017.1 1006.1 1001.4 1004.4 1011.0 1017.5 1024.3 1025.9 1026.0 DAY 16 11 16 6 4 11 14 14 30 30 29 30 MIN. QFF PRESSURE IN HPA 1005.6 1008.6 1007.5 1004.2 1001.7 997.0 993.7 996.0 1001.4 1005.0 1012.8 1013.8 993.7 DAY 9 9 23 19 30 23 17 2 13 9 6 8 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1016.4 1016.3 1014.9 1011.5 1006.8 1001.9 997.5 1000.2 1005.7 1011.6 1017.5 1019.1 1010.0 MAX. QFE PRESSURE IN HPA 1025.7 1023.5 1020.9 1020.8 1017.6 1006.1 1001.4 1005.1 1011.5 1017.2 1023.3 1025.4 1025.7 DAY 16 25 16 6 4 11 5 14 30 30 28 30 MIN. QFE PRESSURE IN HPA 1004.4 1006.9 1007.6 1002.9 1001.2 997.4 993.9 995.8 1001.4 1005.0 1012.5 1013.4 993.9 DAY 9 9 23 19 30 29 17 1 12 9 6 14 MEAN QNH PRESSURE IN HPA 1016.9 1016.8 1015.4 1012.0 1007.3 1002.3 998.0 1000.7 1006.2 1012.1 1018.0 1019.6 1010.4 MAX. QNH PRESSURE IN HPA 1026.2 1024.0 1021.4 1021.3 1018.1 1006.6 1001.9 1005.6 1012.0 1017.7 1023.8 1025.9 1026.2 DAY 16 25 16 6 4 11 5 14 30 30 28 30 MIN. QNH PRESSURE IN HPA 1004.9 1007.4 1008.1 1003.4 1001.7 997.9 994.4 996.3 1001.9 1005.5 1013.0 1013.9 994.4 DAY 9 9 23 19 30 29 17 1 12 9 6 14 MEAN QFF PRESSURE IN HPA 1017.2 1017.1 1015.7 1012.3 1007.5 1002.6 998.2 1000.9 1006.4 1012.3 1018.3 1019.9 1010.7 MAX. QFF PRESSURE IN HPA 1026.5 1024.3 1021.7 1021.6 1018.4 1006.8 1002.1 1005.8 1012.2 1018.0 1024.1 1026.2 1026.5 DAY 16 25 16 6 4 11 5 14 30 30 28 30 MIN. QFF PRESSURE IN HPA 1005.2 1007.7 1008.4 1003.6 1001.9 998.1 994.6 996.5 1002.1 1005.7 1013.3 1014.2 994.6 DAY 9 9 23 19 30 29 17 1 12 9 6 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1017.7 1017.9 1016.4 1012.8 1007.8 1002.8 998.3 1001.3 1006.9 1013.1 1019.0 1020.6 1011.2 MAX. QFE PRESSURE IN HPA 1027.0 1025.3 1022.8 1022.0 1018.9 1006.9 1002.3 1006.1 1012.7 1018.3 1025.3 1026.4 1027.0 DAY 16 25 16 6 4 11 5 14 30 30 28 30 MIN. QFE PRESSURE IN HPA 1005.7 1010.5 1009.5 1001.9 1002.3 998.1 994.6 996.1 1002.0 1006.5 1013.9 1014.9 994.6 DAY 9 9 23 19 30 22 28 1 12 9 6 14 MEAN QNH PRESSURE IN HPA 1018.2 1018.4 1016.9 1013.3 1008.3 1003.3 998.8 1001.7 1007.4 1013.5 1019.5 1021.1 1011.7 MAX. QNH PRESSURE IN HPA 1027.5 1025.8 1023.3 1022.5 1019.4 1007.4 1002.8 1006.6 1013.2 1018.8 1025.8 1026.9 1027.5 DAY 16 25 16 6 4 11 5 14 30 30 28 30 MIN. QNH PRESSURE IN HPA 1006.2 1011.0 1010.0 1002.4 1002.8 998.6 995.1 996.6 1002.5 1007.0 1014.4 1015.4 995.1 DAY 9 9 23 19 30 22 28 1 12 9 6 14 MEAN QFF PRESSURE IN HPA 1018.5 1018.7 1017.2 1013.5 1008.6 1003.5 999.0 1002.0 1007.6 1013.8 1019.7 1021.4 1012.0 MAX. QFF PRESSURE IN HPA 1027.8 1026.1 1023.6 1022.8 1019.7 1007.6 1003.0 1006.8 1013.4 1019.1 1026.1 1027.2 1027.8 DAY 16 25 16 6 4 11 5 14 30 30 28 30 MIN. QFF PRESSURE IN HPA 1006.5 1011.3 1010.3 1002.6 1003.0 998.8 995.3 996.8 1002.7 1007.2 1014.7 1015.7 995.3 DAY 9 9 23 19 30 22 28 1 12 9 6 14 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1016.8 1017.1 1015.6 1012.3 1007.2 1002.5 997.9 1000.6 1006.2 1012.1 1017.7 1019.4 1010.4 MAX. QFE PRESSURE IN HPA 1026.8 1024.9 1021.9 1021.3 1018.4 1006.3 1001.9 1005.3 1011.5 1017.5 1024.4 1025.5 1026.8 DAY 16 25 16 6 4 11 13 13 30 28 28 30 MIN. QFE PRESSURE IN HPA 1005.4 1011.5 1009.0 1005.1 1002.0 998.1 994.4 996.0 1002.0 1006.0 1013.1 1013.3 994.4 DAY 9 13 23 3 30 29 28 1 3 9 6 24 MEAN QNH PRESSURE IN HPA 1017.3 1017.6 1016.0 1012.8 1007.6 1002.9 998.4 1001.1 1006.7 1012.6 1018.2 1019.9 1010.9 MAX. QNH PRESSURE IN HPA 1027.3 1025.4 1022.4 1021.8 1018.9 1006.8 1002.4 1005.8 1012.0 1018.0 1024.9 1026.0 1027.3 DAY 16 25 16 6 4 11 13 13 30 28 28 30 MIN. QNH PRESSURE IN HPA 1005.9 1012.0 1009.5 1005.6 1002.5 998.6 994.9 996.5 1002.5 1006.5 1013.6 1013.8 994.9 DAY 9 13 23 3 30 29 28 1 3 9 6 24 MEAN QFF PRESSURE IN HPA 1017.6 1017.9 1016.3 1013.0 1007.9 1003.2 998.6 1001.4 1006.9 1012.8 1018.5 1020.2 1011.2 MAX. QFF PRESSURE IN HPA 1027.6 1025.7 1022.7 1022.1 1019.2 1007.0 1002.6 1006.0 1012.2 1018.3 1025.2 1026.3 1027.6 DAY 16 25 16 6 4 11 13 13 30 28 28 30 MIN. QFF PRESSURE IN HPA 1006.2 1012.3 1009.8 1005.9 1002.7 998.8 995.1 996.7 1002.7 1006.7 1013.9 1014.1 995.1 DAY 9 13 23 3 30 29 28 1 3 9 6 24 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1015.3 1015.2 1013.8 1010.3 1005.6 1001.2 996.8 999.2 1004.7 1010.5 1016.3 1017.9 1008.9 MAX. QFE PRESSURE IN HPA 1025.3 1022.8 1019.5 1019.5 1016.7 1004.8 1000.6 1003.5 1010.5 1015.7 1022.6 1023.9 1025.3 DAY 16 25 16 6 4 1 13 13 30 28 28 29 MIN. QFE PRESSURE IN HPA 1005.2 1008.7 1007.4 1002.8 1000.2 997.4 993.5 995.0 1000.2 1004.8 1011.3 1012.5 993.5 DAY 9 13 23 3 30 22 27 1 12 24 6 24 MEAN QNH PRESSURE IN HPA 1015.8 1015.7 1014.3 1010.8 1006.1 1001.7 997.3 999.7 1005.2 1011.0 1016.8 1018.4 1009.4 MAX. QNH PRESSURE IN HPA 1025.8 1023.3 1020.0 1020.0 1017.2 1005.3 1001.1 1004.0 1011.0 1016.2 1023.1 1024.4 1025.8 DAY 16 25 16 6 4 1 13 13 30 28 28 29 MIN. QNH PRESSURE IN HPA 1005.7 1009.2 1007.9 1003.3 1000.7 997.9 994.0 995.5 1000.7 1005.3 1011.8 1013.0 994.0 DAY 9 13 23 3 30 22 27 1 12 24 6 24 MEAN QFF PRESSURE IN HPA 1016.2 1016.0 1014.5 1011.1 1006.4 1001.9 997.6 999.9 1005.4 1011.2 1017.1 1018.7 1009.7 MAX. QFF PRESSURE IN HPA 1026.1 1023.6 1020.3 1020.3 1017.5 1005.5 1001.3 1004.2 1011.2 1016.5 1023.4 1024.7 1026.1 DAY 16 25 16 6 4 1 13 13 30 28 28 29 MIN. QFF PRESSURE IN HPA 1006.0 1009.5 1008.2 1003.6 1000.9 998.1 994.2 995.7 1000.9 1005.5 1012.1 1013.3 994.2 DAY 9 13 23 3 30 22 27 1 12 24 6 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1015.7 1015.6 1013.7 1010.2 1005.4 1000.8 996.2 998.8 1004.5 1010.7 1016.8 1018.4 1008.9 MAX. QFE PRESSURE IN HPA 1025.6 1022.7 1019.0 1018.9 1016.1 1004.6 1000.1 1003.3 1010.7 1016.3 1023.3 1024.7 1025.6 DAY 16 25 16 6 4 1 13 13 30 27 28 29 MIN. QFE PRESSURE IN HPA 1003.2 1008.6 1008.6 1003.5 999.1 996.5 992.9 994.9 1000.0 1004.3 1011.7 1012.8 992.9 DAY 19 22 23 3 30 22 27 1 12 24 6 14 MEAN QNH PRESSURE IN HPA 1016.2 1016.1 1014.2 1010.7 1005.9 1001.2 996.7 999.3 1005.0 1011.2 1017.3 1018.9 1009.4 MAX. QNH PRESSURE IN HPA 1026.1 1023.2 1019.5 1019.4 1016.6 1005.1 1000.6 1003.8 1011.2 1016.8 1023.8 1025.2 1026.1 DAY 16 25 16 6 4 1 13 13 30 27 28 29 MIN. QNH PRESSURE IN HPA 1003.7 1009.1 1009.1 1004.0 999.6 997.0 993.4 995.4 1000.5 1004.8 1012.2 1013.3 993.4 DAY 19 22 23 3 30 22 27 1 12 24 6 14 MEAN QFF PRESSURE IN HPA 1016.5 1016.4 1014.5 1011.0 1006.1 1001.5 996.9 999.5 1005.2 1011.5 1017.5 1019.2 1009.7 MAX. QFF PRESSURE IN HPA 1026.4 1023.5 1019.8 1019.7 1016.9 1005.3 1000.8 1004.0 1011.4 1017.1 1024.1 1025.5 1026.4 DAY 16 25 16 6 4 1 13 13 30 27 28 29 MIN. QFF PRESSURE IN HPA 1004.0 1009.4 1009.4 1004.3 999.8 997.2 993.6 995.6 1000.7 1005.0 1012.5 1013.6 993.6 DAY 19 22 23 3 30 22 27 1 12 24 6 14 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1016.7 1016.6 1014.8 1011.4 1006.5 1001.5 997.2 999.9 1005.6 1011.6 1017.4 1019.2 1009.9 MAX. QFE PRESSURE IN HPA 1026.3 1022.7 1019.5 1020.3 1016.5 1005.2 1001.3 1004.7 1011.2 1016.8 1023.8 1025.6 1026.3 DAY 16 25 16 5 4 1 13 13 30 27 28 29 MIN. QFE PRESSURE IN HPA 1006.1 1008.8 1009.9 1003.6 1000.6 997.0 993.6 995.7 1000.6 1006.8 1012.7 1014.1 993.6 DAY 19 22 22 18 30 22 17 5 12 24 6 24 MEAN QNH PRESSURE IN HPA 1017.2 1017.1 1015.3 1011.9 1007.0 1002.0 997.7 1000.4 1006.1 1012.1 1017.9 1019.7 1010.3 MAX. QNH PRESSURE IN HPA 1026.8 1023.2 1020.0 1020.8 1017.0 1005.7 1001.8 1005.2 1011.7 1017.3 1024.3 1026.1 1026.8 DAY 16 25 16 5 4 1 13 13 30 27 28 29 MIN. QNH PRESSURE IN HPA 1006.6 1009.3 1010.4 1004.1 1001.1 997.5 994.1 996.2 1001.1 1007.3 1013.2 1014.6 994.1 DAY 19 22 22 18 30 22 17 5 12 24 6 24 MEAN QFF PRESSURE IN HPA 1017.5 1017.4 1015.6 1012.2 1007.2 1002.2 997.9 1000.6 1006.4 1012.4 1018.1 1020.0 1010.6 MAX. QFF PRESSURE IN HPA 1027.1 1023.5 1020.3 1021.1 1017.3 1005.9 1002.0 1005.4 1011.9 1017.6 1024.6 1026.4 1027.1 DAY 16 25 16 5 4 1 13 13 30 27 28 29 MIN. QFF PRESSURE IN HPA 1006.9 1009.6 1010.7 1004.3 1001.3 997.7 994.3 996.4 1001.3 1007.5 1013.5 1014.9 994.3 DAY 19 22 22 18 30 22 17 5 12 24 6 24 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1016.6 1016.4 1014.9 1011.5 1006.5 1001.5 997.1 1000.0 1005.5 1011.5 1017.2 1019.1 1009.8 MAX. QFE PRESSURE IN HPA 1026.0 1022.2 1020.1 1020.6 1016.3 1005.5 1001.1 1004.8 1010.3 1016.5 1023.6 1025.2 1026.0 DAY 16 25 15 5 3 10 13 31 30 29 28 29 MIN. QFE PRESSURE IN HPA 1006.5 1009.4 1008.3 1003.6 1001.2 996.9 993.5 995.8 1001.0 1006.3 1012.5 1014.2 993.5 DAY 8 8 22 18 30 22 17 1 12 8 6 27 MEAN QNH PRESSURE IN HPA 1017.1 1016.9 1015.4 1012.0 1007.0 1002.0 997.6 1000.5 1006.0 1012.0 1017.7 1019.6 1010.3 MAX. QNH PRESSURE IN HPA 1026.5 1022.7 1020.6 1021.1 1016.8 1006.0 1001.6 1005.3 1010.8 1017.0 1024.1 1025.7 1026.5 DAY 16 25 15 5 3 10 13 31 30 29 28 29 MIN. QNH PRESSURE IN HPA 1007.0 1009.9 1008.8 1004.1 1001.7 997.4 994.0 996.3 1001.5 1006.8 1013.0 1014.7 994.0 DAY 8 8 22 18 30 22 17 1 12 8 6 27 MEAN QFF PRESSURE IN HPA 1017.4 1017.1 1015.7 1012.2 1007.3 1002.2 997.8 1000.7 1006.2 1012.2 1017.9 1019.8 1010.6 MAX. QFF PRESSURE IN HPA 1026.8 1023.0 1020.9 1021.4 1017.1 1006.2 1001.8 1005.5 1011.0 1017.3 1024.4 1026.0 1026.8 DAY 16 25 15 5 3 10 13 31 30 29 28 29 MIN. QFF PRESSURE IN HPA 1007.3 1010.2 1009.1 1004.3 1001.9 997.6 994.2 996.5 1001.7 1007.0 1013.3 1015.0 994.2 DAY 8 8 22 18 30 22 17 1 12 8 6 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 15.0 15.4 18.8 24.9 32.0 35.7 35.7 36.6 33.2 26.6 20.3 14.9 25.8 MINIMUN AIR TEMPERATURE (C) 9.3 10.8 13.2 18.2 24.7 27.3 27.4 28.0 25.3 20.1 12.8 9.0 18.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 4 27 30 31 31 30 13 0 0 166 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) 2.0 7.0 9.0 12.0 19.0 23.0 24.0 25.0 22.0 13.0 4.0 5.0 2.0 DAY 17 4 3 1 7 1 1 6 14 31 30 28 MAXIMUM AIR TEMPERATURE (C) 22.7 20.8 25.5 31.8 39.5 43.8 44.0 45.3 42.7 34.4 30.0 22.4 33.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 2 23 31 30 31 31 30 28 22 0 228 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 29.0 26.0 31.0 38.0 47.0 50.0 48.0 49.0 46.0 40.0 34.0 27.0 50.0 DAY 7 26 19 30 24 7 13 23 9 3 18 11 DIF. BETWEEN (MAX.-MIN.) (C) 13.4 10.0 12.3 13.6 14.8 16.5 16.6 17.3 17.4 14.3 17.2 13.4 14.8 MEAN DAILY TEMP. (MDT) (C) 16.0 15.8 19.4 25.0 32.1 35.5 35.7 36.6 34.0 27.3 21.4 15.7 26.2 COOLING DEG. DAYS(BASE 21 0C) 1.0 0.0 13.5 122.0 344.5 436.5 455.5 485.0 389.5 194.5 44.5 0.0 2486.5 HEATING DEG. DAYS(BASE 18 0C) 73.0 64.5 11.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12.5 78.0 239.5 DEWPOINT (MEAN C) 7.2 9.3 6.6 8.5 7.1 8.9 13.1 10.9 13.3 12.4 9.3 6.8 9.5 MIXING RATIO (G/KG) 6.55 7.37 6.35 7.20 6.92 7.47 9.89 8.65 10.30 9.41 7.54 6.31 7.83 VAPOUR PRESSURE (HPA) 10.60 11.90 10.25 11.55 11.05 11.86 15.58 13.66 16.32 15.05 12.16 10.20 12.51 SATURATION DEF. (HPA) 7.42 6.03 12.30 21.25 38.57 49.25 45.66 50.31 37.15 21.48 13.34 7.44 25.85 RELATIVE HUMIDITY (MEAN %) 63 70 50 40 26 23 29 25 35 46 55 62 44 RELATIVE HUMIDITY (MAX. %) 84 90 79 68 50 40 49 43 60 67 81 83 66 RELATIVE HUMIDITY (MIN. %) 37 46 23 19 10 9 13 10 14 24 24 34 22 RELATIVE HUMIDITY (MEAN% 03UTC) 80 87 74 63 45 36 46 37 53 60 76 80 61 RELATIVE HUMIDITY (MEAN% 09UTC) 48 54 30 22 12 11 16 13 19 28 31 43 27 RELATIVE HUMIDITY (MEAN% 15UTC) 53 58 34 26 15 16 19 18 26 39 44 54 34 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 22.9 80.1 22.0 3.1 0.4 0.0 0.0 0.0 0.0 2.6 0.0 7.0 138.1 DAYS WITH PRECIPITATION >=10 0 2 1 0 0 0 0 0 0 0 0 0 3 DAYS WITH PRECIPITATION >= 5 2 4 1 0 0 0 0 0 0 0 0 1 8 DAYS WITH PRECIPITATION >= 1 9 5 5 2 0 0 0 0 0 1 0 2 24 DAYS WITH PRECIPITATION 13 9 6 5 3 0 0 0 1 6 0 6 49 GREATEST DAILY PRECIPITATION 9.0 31.0 13.0 2.0 0.4 0.0 0.0 0.0 0.0 2.0 0.0 5.0 31.0 DAY 31 2 29 2 6 ** ** ** ** 25 ** 12 DAY WITH THUNDER STORM 1 3 6 5 1 0 0 0 0 3 0 1 20 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 1 2 8 5 23 22 16 22 7 7 1 8 122 WIND DIRECTION (PREVAILING) 315 315 315 315 315 315 315 315 315 270 315 315 315 PREVAILING WIND SPEED(KNOTS) 5.5 7.1 8.6 7.5 11.5 12.4 9.8 9.0 7.7 4.6 5.1 7.5 8.9 PREVAILING WIND PERCENT 19.0 21.9 29.0 25.0 44.0 50.0 36.7 41.1 29.6 22.2 22.1 27.4 30.7 CALMS PERCENT OF WIND 25.4 24.6 17.7 17.9 9.3 8.8 13.3 12.5 20.4 21.8 32.9 24.2 19.0 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 288 266 286 311 317 304 294 295 297 321 286 293 300 VECTOR WIND MAGNITUDE(KNOTS) 0.3 1.1 1.3 1.2 4.9 8.3 5.2 5.4 2.7 2.0 1.5 1.8 2.9 WIND STEADINESES (MEAN %) 7.0 22.9 19.1 19.7 58.3 89.2 78.8 85.7 55.1 39.2 50.0 34.0 49.2 WIND SPEED (MEAN KNOTS) 4.3 4.8 6.8 6.1 8.4 9.3 6.6 6.3 4.9 5.1 3.0 5.3 5.9 FASTEST WIND DIRECTION 150 300 310 90 330 330 330 310 310 300 330 170 330 FASTEST WIND SPEED (KNOTS) 22 24 26 24 28 24 20 20 18 20 16 20 28 DAY 30 11 19 7 22 20 26 4 2 12 23 11 DAYS WITH SKY CLEAR (0-2)/8 16 10 21 13 20 29 31 31 28 20 18 17 254 DAYS WITH P.CLOUDY (3-6)/8 10 11 5 12 7 0 0 0 2 9 12 10 78 DAYS WITH CLOUDY (7-8)/8 5 7 5 5 4 1 0 0 0 2 0 4 33 DAYS WITH VISIBILITY =< 2 KM 3 1 5 0 7 9 6 4 4 4 2 4 49 DURATION OF SUNSHINE HOURS 208.4 186.8 239.4 245.1 272.2 305.7 307.2 315.2 286.1 269.8 266.5 216.9 3119.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1018.4 1016.5 1014.6 1010.3 1007.3 1000.5 996.8 998.1 1004.9 1011.9 1017.3 1017.3 1009.5 MAX. QFE PRESSURE IN HPA 1026.3 1023.9 1021.6 1018.1 1012.8 1008.5 1003.2 1003.2 1012.2 1018.5 1024.5 1024.5 1026.3 DAY-HOUR 16- 6 12- 6 3- 6 1- 6 3- 6 3- 6 10- 6 17- 6 26- 6 31- 6 28- 6 22- 6 MIN. QFE PRESSURE IN HPA 1008.7 1009.1 999.8 1005.0 1000.8 996.4 991.9 992.9 997.7 1006.0 1011.5 1007.3 991.9 DAY-HOUR 30- 3 28-12 19- 9 21-15 31- 0 26- 0 13-15 1- 0 8-15 2-12 12-12 18- 0 MEAN QNH PRESSURE IN HPA 1018.9 1017.0 1015.0 1010.8 1007.8 1001.0 997.2 998.5 1005.4 1012.4 1017.8 1017.8 1010.0 MAX. QNH PRESSURE IN HPA 1026.8 1024.4 1022.1 1018.6 1013.3 1009.0 1003.7 1003.7 1012.7 1019.0 1025.0 1025.0 1026.8 DAY-HOUR 16- 6 12- 6 3- 6 1- 6 3- 6 3- 6 10- 6 17- 6 26- 6 31- 6 28- 6 22- 6 MIN. QNH PRESSURE IN HPA 1009.2 1009.6 1000.3 1005.5 1001.3 996.9 992.4 993.4 998.2 1006.5 1012.0 1007.8 992.4 DAY-HOUR 30- 3 28-12 19- 9 21-15 31- 0 26- 0 13-15 1- 0 8-15 2-12 12-12 18- 0 MEAN QFF PRESSURE IN HPA 1019.1 1017.3 1015.3 1011.1 1008.0 1001.2 997.5 998.8 1005.6 1012.6 1018.0 1018.1 1010.2 MAX. QFF PRESSURE IN HPA 1027.1 1024.7 1022.4 1018.9 1013.5 1009.2 1003.9 1003.9 1012.9 1019.3 1025.3 1025.3 1027.1 DAY-HOUR 16- 6 12- 6 3- 6 1- 6 3- 6 3- 6 10- 6 17- 6 26- 6 31- 6 28- 6 22- 6 MIN. QFF PRESSURE IN HPA 1009.5 1009.9 1000.6 1005.7 1001.5 997.1 992.6 993.6 998.4 1006.7 1012.3 1008.1 992.6 DAY-HOUR 30- 3 28-12 19- 9 21-15 31- 0 26- 0 13-15 1- 0 8-15 2-12 12-12 18- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1018.4 1016.3 1014.1 1010.0 1007.0 1000.0 996.4 997.5 1004.4 1011.3 1017.0 1017.0 1009.1 MAX. QFE PRESSURE IN HPA 1024.9 1022.4 1019.7 1016.2 1011.4 1006.4 1001.4 1001.6 1009.9 1016.2 1022.9 1023.4 1024.9 DAY 16 12 3 1 9 3 11 17 26 23 28 23 MIN. QFE PRESSURE IN HPA 1009.8 1010.0 1003.7 1005.9 1000.8 996.4 992.6 992.9 999.0 1006.5 1012.3 1007.3 992.6 DAY 30 2 19 25 31 26 14 1 1 2 12 18 MEAN QNH PRESSURE IN HPA 1018.9 1016.8 1014.6 1010.5 1007.5 1000.5 996.8 997.9 1004.9 1011.8 1017.5 1017.5 1009.6 MAX. QNH PRESSURE IN HPA 1025.4 1022.9 1020.2 1016.7 1011.9 1006.9 1001.9 1002.1 1010.4 1016.7 1023.4 1023.9 1025.4 DAY 16 12 3 1 9 3 11 17 26 23 28 23 MIN. QNH PRESSURE IN HPA 1010.3 1010.5 1004.2 1006.4 1001.3 996.9 993.1 993.4 999.5 1007.0 1012.8 1007.8 993.1 DAY 30 2 19 25 31 26 14 1 1 2 12 18 MEAN QFF PRESSURE IN HPA 1019.1 1017.1 1014.9 1010.7 1007.7 1000.7 997.1 998.2 1005.2 1012.1 1017.8 1017.8 1009.9 MAX. QFF PRESSURE IN HPA 1025.7 1023.2 1020.5 1017.0 1012.1 1007.1 1002.1 1002.3 1010.6 1017.0 1023.7 1024.2 1025.7 DAY 16 12 3 1 9 3 11 17 26 23 28 23 MIN. QFF PRESSURE IN HPA 1010.6 1010.8 1004.4 1006.6 1001.5 997.1 993.3 993.6 999.7 1007.2 1013.1 1008.1 993.3 DAY 30 2 19 25 31 26 14 1 1 2 12 18 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1018.5 1016.4 1014.6 1010.5 1007.6 1000.6 997.0 998.2 1005.2 1012.1 1017.6 1017.3 1009.6 MAX. QFE PRESSURE IN HPA 1025.0 1022.4 1020.2 1016.9 1012.5 1007.5 1002.2 1001.9 1011.3 1016.8 1023.3 1022.8 1025.0 DAY 16 12 3 1 3 3 11 17 26 31 28 22 MIN. QFE PRESSURE IN HPA 1008.7 1010.8 1002.9 1006.9 1002.0 997.1 993.8 993.5 999.1 1006.9 1012.7 1008.5 993.5 DAY 30 2 19 16 31 27 2 1 1 2 12 20 MEAN QNH PRESSURE IN HPA 1019.0 1016.9 1015.1 1011.0 1008.1 1001.1 997.5 998.6 1005.7 1012.6 1018.1 1017.8 1010.1 MAX. QNH PRESSURE IN HPA 1025.5 1022.9 1020.7 1017.4 1013.0 1008.0 1002.7 1002.4 1011.8 1017.3 1023.8 1023.3 1025.5 DAY 16 12 3 1 3 3 11 17 26 31 28 22 MIN. QNH PRESSURE IN HPA 1009.2 1011.3 1003.4 1007.4 1002.5 997.6 994.3 994.0 999.6 1007.4 1013.2 1009.0 994.0 DAY 30 2 19 16 31 27 2 1 1 2 12 20 MEAN QFF PRESSURE IN HPA 1019.3 1017.2 1015.4 1011.2 1008.3 1001.3 997.7 998.9 1005.9 1012.8 1018.4 1018.1 1010.4 MAX. QFF PRESSURE IN HPA 1025.8 1023.2 1021.0 1017.7 1013.2 1008.2 1002.9 1002.6 1012.0 1017.6 1024.1 1023.6 1025.8 DAY 16 12 3 1 3 3 11 17 26 31 28 22 MIN. QFF PRESSURE IN HPA 1009.5 1011.6 1003.7 1007.7 1002.7 997.8 994.5 994.2 999.8 1007.6 1013.5 1009.3 994.2 DAY 30 2 19 16 31 27 31 1 1 2 12 20 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1019.9 1018.0 1016.0 1011.7 1008.5 1001.5 997.9 999.2 1006.4 1013.6 1019.0 1018.8 1010.9 MAX. QFE PRESSURE IN HPA 1026.3 1023.9 1021.6 1018.1 1012.8 1008.5 1003.2 1003.2 1012.2 1018.5 1024.5 1024.5 1026.3 DAY 16 12 3 1 3 3 10 17 26 31 28 22 MIN. QFE PRESSURE IN HPA 1010.5 1012.3 1002.3 1008.1 1003.3 998.1 994.7 994.9 1000.5 1008.2 1014.0 1010.9 994.7 DAY 30 28 19 24 31 20 27 1 1 2 12 18 MEAN QNH PRESSURE IN HPA 1020.4 1018.5 1016.5 1012.2 1009.0 1002.0 998.3 999.7 1006.9 1014.1 1019.5 1019.3 1011.4 MAX. QNH PRESSURE IN HPA 1026.8 1024.4 1022.1 1018.6 1013.3 1009.0 1003.7 1003.7 1012.7 1019.0 1025.0 1025.0 1026.8 DAY 16 12 3 1 3 3 10 17 26 31 28 22 MIN. QNH PRESSURE IN HPA 1011.0 1012.8 1002.8 1008.6 1003.8 998.6 995.2 995.4 1001.0 1008.7 1014.5 1011.4 995.2 DAY 30 28 19 24 31 20 27 1 1 2 12 18 MEAN QFF PRESSURE IN HPA 1020.7 1018.7 1016.8 1012.5 1009.2 1002.2 998.6 999.9 1007.2 1014.4 1019.7 1019.6 1011.6 MAX. QFF PRESSURE IN HPA 1027.1 1024.7 1022.4 1018.9 1013.5 1009.2 1003.9 1003.9 1012.9 1019.3 1025.3 1025.3 1027.1 DAY 16 12 3 1 3 3 10 17 26 31 28 22 MIN. QFF PRESSURE IN HPA 1011.3 1013.1 1003.1 1008.9 1004.0 998.8 995.4 995.6 1001.2 1008.9 1014.8 1011.7 995.4 DAY 30 28 19 24 31 20 27 1 1 2 12 18 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1018.9 1017.1 1015.2 1011.2 1007.9 1001.3 997.5 998.8 1005.6 1012.5 1017.6 1017.6 1010.1 MAX. QFE PRESSURE IN HPA 1025.2 1023.1 1021.3 1017.6 1011.9 1007.9 1002.8 1002.9 1010.9 1017.1 1023.4 1023.7 1025.2 DAY 15 12 3 5 7 3 10 17 26 31 28 22 MIN. QFE PRESSURE IN HPA 1010.6 1010.7 999.8 1006.8 1003.4 997.5 994.2 994.4 999.6 1007.3 1012.9 1009.6 994.2 DAY 30 14 19 24 31 20 13 1 1 2 12 11 MEAN QNH PRESSURE IN HPA 1019.4 1017.6 1015.7 1011.7 1008.4 1001.7 998.0 999.3 1006.1 1012.9 1018.1 1018.1 1010.6 MAX. QNH PRESSURE IN HPA 1025.7 1023.6 1021.8 1018.1 1012.4 1008.4 1003.3 1003.4 1011.4 1017.6 1023.9 1024.2 1025.7 DAY 15 12 3 5 7 3 10 17 26 31 28 22 MIN. QNH PRESSURE IN HPA 1011.1 1011.2 1000.3 1007.3 1003.9 998.0 994.7 994.9 1000.1 1007.8 1013.4 1010.1 994.7 DAY 30 14 19 24 31 20 13 1 1 2 12 11 MEAN QFF PRESSURE IN HPA 1019.7 1017.9 1016.0 1012.0 1008.6 1002.0 998.2 999.5 1006.3 1013.2 1018.4 1018.4 1010.8 MAX. QFF PRESSURE IN HPA 1026.0 1023.9 1022.1 1018.4 1012.6 1008.6 1003.5 1003.6 1011.6 1017.9 1024.2 1024.5 1026.0 DAY 15 12 3 5 7 3 10 17 26 31 28 22 MIN. QFF PRESSURE IN HPA 1011.4 1011.5 1000.6 1007.6 1004.1 998.2 994.9 995.1 1000.3 1008.0 1013.7 1010.4 994.9 DAY 30 14 19 24 31 20 13 1 1 2 12 11 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1017.1 1015.5 1013.4 1009.4 1006.6 1000.1 996.3 997.5 1003.9 1010.9 1016.2 1016.2 1008.6 MAX. QFE PRESSURE IN HPA 1023.3 1021.0 1019.6 1016.3 1010.6 1006.5 1001.6 1001.3 1009.3 1015.8 1021.9 1022.6 1023.3 DAY 15 12 3 4 7 2 10 18 25 31 27 22 MIN. QFE PRESSURE IN HPA 1009.2 1009.1 1000.0 1005.6 1002.5 996.9 992.6 993.4 998.1 1006.0 1011.5 1007.6 992.6 DAY 30 28 19 16 30 13 31 1 1 2 12 11 MEAN QNH PRESSURE IN HPA 1017.6 1016.0 1013.9 1009.9 1007.1 1000.6 996.8 997.9 1004.4 1011.3 1016.7 1016.7 1009.1 MAX. QNH PRESSURE IN HPA 1023.8 1021.5 1020.1 1016.8 1011.1 1007.0 1002.1 1001.8 1009.8 1016.3 1022.4 1023.1 1023.8 DAY 15 12 3 4 7 2 10 18 25 31 27 22 MIN. QNH PRESSURE IN HPA 1009.7 1009.6 1000.5 1006.1 1003.0 997.4 993.1 993.9 998.6 1006.5 1012.0 1008.1 993.1 DAY 30 28 19 16 30 13 31 1 1 2 12 11 MEAN QFF PRESSURE IN HPA 1017.8 1016.3 1014.2 1010.1 1007.3 1000.9 997.0 998.2 1004.6 1011.6 1016.9 1017.0 1009.3 MAX. QFF PRESSURE IN HPA 1024.1 1021.8 1020.4 1017.1 1011.3 1007.2 1002.3 1002.0 1010.0 1016.6 1022.7 1023.4 1024.1 DAY 15 12 3 4 7 2 10 18 25 31 27 22 MIN. QFF PRESSURE IN HPA 1010.0 1009.9 1000.8 1006.3 1003.2 997.6 993.3 994.1 998.8 1006.7 1012.3 1008.4 993.3 DAY 30 28 19 16 30 13 31 1 1 2 12 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1017.5 1015.9 1013.6 1009.3 1006.3 999.8 995.8 997.2 1003.8 1011.0 1016.6 1016.7 1008.6 MAX. QFE PRESSURE IN HPA 1023.6 1021.4 1019.9 1016.2 1010.9 1006.3 1001.0 1000.7 1009.2 1015.9 1022.6 1022.9 1023.6 DAY 15 12 3 4 7 2 10 18 26 22 27 22 MIN. QFE PRESSURE IN HPA 1010.6 1009.7 1004.9 1005.0 1001.9 996.6 991.9 993.0 997.7 1006.4 1011.8 1007.6 991.9 DAY 30 14 19 21 30 20 13 1 8 1 12 11 MEAN QNH PRESSURE IN HPA 1018.0 1016.4 1014.1 1009.8 1006.8 1000.2 996.3 997.6 1004.3 1011.5 1017.1 1017.2 1009.1 MAX. QNH PRESSURE IN HPA 1024.1 1021.9 1020.4 1016.7 1011.4 1006.8 1001.5 1001.2 1009.7 1016.4 1023.1 1023.4 1024.1 DAY 15 12 3 4 7 2 10 18 26 22 27 22 MIN. QNH PRESSURE IN HPA 1011.1 1010.2 1005.4 1005.5 1002.4 997.1 992.4 993.5 998.2 1006.9 1012.3 1008.1 992.4 DAY 30 14 19 21 30 20 13 1 8 1 12 11 MEAN QFF PRESSURE IN HPA 1018.3 1016.7 1014.4 1010.1 1007.0 1000.5 996.5 997.9 1004.6 1011.8 1017.4 1017.5 1009.4 MAX. QFF PRESSURE IN HPA 1024.4 1022.2 1020.7 1017.0 1011.7 1007.0 1001.7 1001.4 1009.9 1016.7 1023.4 1023.7 1024.4 DAY 15 12 3 4 7 2 10 18 26 31 27 22 MIN. QFF PRESSURE IN HPA 1011.4 1010.5 1005.7 1005.7 1002.6 997.3 992.6 993.7 998.4 1007.1 1012.6 1008.4 992.6 DAY 30 28 19 21 30 20 13 1 8 1 12 11 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1018.5 1016.6 1014.9 1010.4 1007.3 1000.5 996.6 998.2 1005.1 1011.9 1017.2 1017.4 1009.6 MAX. QFE PRESSURE IN HPA 1025.0 1023.0 1020.4 1017.3 1012.6 1006.9 1001.8 1001.8 1010.6 1016.8 1023.4 1023.9 1025.0 DAY 15 11 3 4 7 2 10 18 24 31 27 22 MIN. QFE PRESSURE IN HPA 1011.7 1009.9 1006.1 1005.4 1002.4 997.4 992.5 994.1 999.3 1007.4 1012.2 1008.0 992.5 DAY 29 28 18 7 30 28 13 1 8 1 12 11 MEAN QNH PRESSURE IN HPA 1019.0 1017.1 1015.3 1010.9 1007.8 1001.0 997.1 998.7 1005.6 1012.4 1017.7 1017.9 1010.0 MAX. QNH PRESSURE IN HPA 1025.5 1023.5 1020.9 1017.8 1013.1 1007.4 1002.3 1002.3 1011.1 1017.3 1023.9 1024.4 1025.5 DAY 15 11 3 4 7 2 10 18 24 31 27 22 MIN. QNH PRESSURE IN HPA 1012.2 1010.4 1006.6 1005.9 1002.9 997.9 993.0 994.6 999.8 1007.9 1012.7 1008.5 993.0 DAY 29 28 18 7 30 28 13 1 8 1 12 11 MEAN QFF PRESSURE IN HPA 1019.3 1017.4 1015.6 1011.2 1008.1 1001.3 997.3 999.0 1005.8 1012.7 1018.0 1018.2 1010.3 MAX. QFF PRESSURE IN HPA 1025.8 1023.8 1021.2 1018.1 1013.4 1007.6 1002.5 1002.5 1011.3 1017.6 1024.2 1024.7 1025.8 DAY 15 11 3 4 7 2 10 18 25 31 27 22 MIN. QFF PRESSURE IN HPA 1012.5 1010.7 1006.9 1006.2 1003.1 998.1 993.2 994.8 1000.0 1008.1 1013.0 1008.8 993.2 DAY 29 28 18 7 30 28 13 1 8 1 12 11 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1018.3 1016.3 1014.8 1010.3 1007.3 1000.5 996.7 998.1 1005.0 1011.8 1017.1 1017.3 1009.4 MAX. QFE PRESSURE IN HPA 1024.6 1022.5 1020.2 1017.5 1012.2 1006.8 1001.5 1002.0 1010.3 1017.0 1023.0 1023.4 1024.6 DAY 15 11 2 4 8 2 10 17 25 31 27 22 MIN. QFE PRESSURE IN HPA 1010.9 1010.3 1005.7 1006.1 1002.1 997.2 992.7 994.3 999.0 1006.6 1012.5 1007.7 992.7 DAY 29 28 18 24 30 30 13 1 3 1 12 17 MEAN QNH PRESSURE IN HPA 1018.8 1016.8 1015.3 1010.8 1007.8 1000.9 997.2 998.6 1005.4 1012.3 1017.5 1017.8 1009.9 MAX. QNH PRESSURE IN HPA 1025.1 1023.0 1020.7 1018.0 1012.7 1007.3 1002.0 1002.5 1010.8 1017.5 1023.5 1023.9 1025.1 DAY 15 11 2 4 8 2 10 17 25 31 27 22 MIN. QNH PRESSURE IN HPA 1011.4 1010.8 1006.2 1006.6 1002.6 997.7 993.2 994.8 999.5 1007.1 1013.0 1008.2 993.2 DAY 29 28 18 24 30 30 13 1 3 1 12 17 MEAN QFF PRESSURE IN HPA 1019.1 1017.1 1015.6 1011.1 1008.0 1001.2 997.4 998.8 1005.7 1012.5 1017.8 1018.1 1010.2 MAX. QFF PRESSURE IN HPA 1025.4 1023.3 1021.0 1018.3 1012.9 1007.5 1002.2 1002.7 1011.0 1017.8 1023.8 1024.2 1025.4 DAY 15 11 2 4 8 2 10 17 25 31 27 22 MIN. QFF PRESSURE IN HPA 1011.7 1011.1 1006.5 1006.9 1002.8 997.9 993.4 995.0 999.7 1007.3 1013.3 1008.5 993.4 DAY 29 28 18 24 30 30 13 1 3 1 12 17 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 12.0 11.7 17.1 22.4 29.6 32.5 35.7 34.9 31.7 26.9 18.8 12.2 23.8 MINIMUN AIR TEMPERATURE (C) 6.1 6.5 10.1 14.8 21.8 23.8 27.2 26.9 22.5 19.4 14.4 7.2 16.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 1 25 27 31 31 24 10 0 0 149 DAYS WITH MINIMUM TEMP. <=-4 0 1 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH FREEZING MIN.<= 0 4 2 0 0 0 0 0 0 0 0 0 1 7 TEMPERATURE RECORDS LOWEST(C) -2.0 -4.0 3.0 8.0 14.0 17.0 22.0 23.0 19.0 15.0 4.0 0.0 -4.0 DAY 23 3 2 1 2 7 19 28 26 24 29 27 MAXIMUM AIR TEMPERATURE (C) 19.1 17.6 24.5 30.4 37.6 41.0 44.0 43.2 41.5 35.9 24.3 18.6 31.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 1 17 29 30 31 31 30 31 8 0 208 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 26.0 24.0 30.0 34.0 45.0 46.0 50.0 45.0 46.0 40.0 35.0 25.0 50.0 DAY 15 10 22 19 24 14 16 15 4 1 1 7 DIF. BETWEEN (MAX.-MIN.) (C) 13.0 11.1 14.4 15.6 15.8 17.2 16.8 16.3 19.0 16.5 9.9 11.4 14.8 MEAN DAILY TEMP. (MDT) (C) 12.6 12.1 17.3 22.6 29.7 32.4 35.6 35.0 32.0 27.6 19.3 12.9 24.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.5 63.0 270.0 342.0 451.5 435.5 330.5 206.0 37.5 0.0 2136.5 HEATING DEG. DAYS(BASE 18 0C) 171.5 166.0 42.0 3.5 0.0 0.0 0.0 0.0 0.0 0.0 35.5 160.5 579.0 DEWPOINT (MEAN C) 3.4 4.0 2.8 6.5 11.4 7.8 11.5 11.6 12.0 12.4 13.6 6.4 8.6 MIXING RATIO (G/KG) 5.19 5.40 4.87 6.51 8.68 7.03 9.12 8.76 9.09 9.27 10.19 6.20 7.53 VAPOUR PRESSURE (HPA) 8.43 8.74 7.85 10.44 13.84 11.17 14.35 13.85 14.44 14.85 16.33 10.04 12.03 SATURATION DEF. (HPA) 6.43 5.67 12.57 17.96 30.01 40.51 46.76 44.23 35.06 22.47 6.48 4.76 22.74 RELATIVE HUMIDITY (MEAN %) 60 63 43 41 37 26 27 26 34 46 75 70 46 RELATIVE HUMIDITY (MAX. %) 83 81 71 68 62 48 47 42 58 70 92 88 68 RELATIVE HUMIDITY (MIN. %) 34 41 21 18 18 10 12 14 14 21 52 44 25 RELATIVE HUMIDITY (MEAN% 03UTC) 81 76 66 64 57 42 41 37 53 64 89 84 63 RELATIVE HUMIDITY (MEAN% 09UTC) 42 51 26 23 22 11 17 16 18 25 60 55 31 RELATIVE HUMIDITY (MEAN% 15UTC) 50 53 26 28 25 17 19 20 25 37 68 64 36 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 4.1 36.4 5.0 0.0 13.5 0.0 0.0 0.0 0.0 0.0 126.0 2.0 187.0 DAYS WITH PRECIPITATION >=10 0 1 0 0 1 0 0 0 0 0 4 0 6 DAYS WITH PRECIPITATION >= 5 0 2 1 0 1 0 0 0 0 0 6 0 10 DAYS WITH PRECIPITATION >= 1 1 9 1 0 3 0 0 0 0 0 9 1 24 DAYS WITH PRECIPITATION 6 10 3 3 7 0 0 0 0 2 9 1 41 GREATEST DAILY PRECIPITATION 4.0 16.0 5.0 0.0 11.0 0.0 0.0 0.0 0.0 0.0 36.0 2.0 36.0 DAY 3 5 5 ** 7 ** ** ** ** ** 23 8 DAY WITH THUNDER STORM 1 0 1 1 2 0 0 0 0 1 6 3 15 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 5 5 9 11 16 20 22 25 15 2 1 3 134 WIND DIRECTION (PREVAILING) 315 315 315 135 315 315 270 270 270 315 315 270 315 PREVAILING WIND SPEED(KNOTS) 7.8 8.0 8.6 10.0 9.8 14.1 8.4 8.0 6.5 7.6 8.5 5.4 9.9 PREVAILING WIND PERCENT 25.8 28.1 29.8 22.9 24.6 49.2 37.9 59.3 40.4 19.8 17.1 37.5 27.1 CALMS PERCENT OF WIND 18.1 8.0 16.1 12.5 16.5 13.8 17.7 5.2 12.5 29.8 20.4 19.0 15.9 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 295 302 296 220 305 301 293 288 291 317 334 280 294 VECTOR WIND MAGNITUDE(KNOTS) 1.4 1.4 2.4 1.3 3.1 8.9 6.8 8.3 4.5 1.8 1.0 2.3 3.5 WIND STEADINESES (MEAN %) 23.0 19.7 35.8 19.1 48.4 90.8 86.1 93.3 76.3 40.0 16.7 46.0 51.5 WIND SPEED (MEAN KNOTS) 6.1 7.1 6.7 6.8 6.4 9.8 7.9 8.9 5.9 4.5 6.0 5.0 6.8 FASTEST WIND DIRECTION 180 120 150 120 300 300 310 300 290 300 100 310 300 FASTEST WIND SPEED (KNOTS) 26 25 20 20 28 28 28 24 24 20 28 20 28 DAY 18 11 5 4 12 23 16 18 6 13 10 23 DAYS WITH SKY CLEAR (0-2)/8 19 13 22 12 17 30 31 31 27 16 11 21 250 DAYS WITH P.CLOUDY (3-6)/8 8 9 8 12 4 0 0 0 3 10 9 8 71 DAYS WITH CLOUDY (7-8)/8 4 6 1 6 10 0 0 0 0 5 10 2 44 DAYS WITH VISIBILITY =< 2 KM 4 3 5 6 6 12 13 8 2 8 7 4 78 DURATION OF SUNSHINE HOURS 202.1 184.1 255.7 234.0 238.0 303.9 272.3 281.2 304.3 227.6 167.1 237.5 2907.8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1020.0 1016.6 1012.2 1010.0 1006.7 1001.2 994.8 997.2 1003.0 1011.9 1015.6 1017.9 1008.9 MAX. QFE PRESSURE IN HPA 1026.9 1025.4 1023.6 1017.8 1014.9 1010.9 999.0 1002.3 1008.6 1019.1 1023.4 1023.9 1026.9 DAY-HOUR 23- 6 2- 6 3- 6 3- 6 2- 6 1- 6 8- 9 29- 6 29- 6 29- 6 28- 6 16- 6 MIN. QFE PRESSURE IN HPA 1010.2 1003.1 1002.8 998.4 1000.3 994.5 989.4 992.8 996.7 1002.5 1007.6 1009.1 989.4 DAY-HOUR 18-12 14-15 24-15 24-15 30-12 14-15 25-15 19-12 11-15 1-12 19-12 23- 3 MEAN QNH PRESSURE IN HPA 1020.5 1017.1 1012.7 1010.5 1007.2 1001.7 995.3 997.7 1003.4 1012.4 1016.1 1018.4 1009.4 MAX. QNH PRESSURE IN HPA 1027.4 1025.9 1024.1 1018.3 1015.4 1011.4 999.5 1002.8 1009.1 1019.6 1023.9 1024.4 1027.4 DAY-HOUR 23- 6 2- 6 3- 6 3- 6 2- 6 1- 6 8- 9 29- 6 29- 6 29- 6 28- 6 16- 6 MIN. QNH PRESSURE IN HPA 1010.7 1003.6 1003.3 998.9 1000.8 995.0 989.9 993.3 997.2 1003.0 1008.1 1009.6 989.9 DAY-HOUR 18-12 14-15 24-15 24-15 30-12 14-15 25-15 19-12 11-15 1-12 19-12 23- 3 MEAN QFF PRESSURE IN HPA 1020.8 1017.4 1013.0 1010.7 1007.4 1001.9 995.5 997.9 1003.7 1012.7 1016.4 1018.7 1009.7 MAX. QFF PRESSURE IN HPA 1027.7 1026.2 1024.4 1018.6 1015.7 1011.6 999.7 1003.0 1009.3 1019.9 1024.2 1024.7 1027.7 DAY-HOUR 23- 6 2- 6 3- 6 3- 6 2- 6 1- 6 8- 9 29- 6 29- 6 29- 6 29- 6 16- 6 MIN. QFF PRESSURE IN HPA 1011.0 1003.9 1003.6 999.2 1001.0 995.2 990.1 993.5 997.4 1003.2 1008.4 1009.9 990.1 DAY-HOUR 18-12 14-15 24-15 24-15 30-12 14-15 25-15 19-12 11-15 1-12 19-12 23- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1019.9 1016.6 1012.0 1009.7 1006.7 1000.9 994.5 996.7 1002.5 1011.2 1015.1 1017.9 1008.6 MAX. QFE PRESSURE IN HPA 1025.9 1023.7 1020.7 1015.8 1013.6 1008.8 997.1 1000.3 1006.5 1016.8 1021.8 1022.0 1025.9 DAY 23 3 3 3 2 1 6 31 25 29 29 16 MIN. QFE PRESSURE IN HPA 1012.3 1008.3 1003.8 1001.0 1001.3 994.8 990.3 993.4 997.4 1002.9 1010.7 1010.6 990.3 DAY 18 15 25 25 25 14 26 19 12 1 19 4 MEAN QNH PRESSURE IN HPA 1020.4 1017.1 1012.5 1010.2 1007.1 1001.4 994.9 997.1 1003.0 1011.7 1015.6 1018.4 1009.1 MAX. QNH PRESSURE IN HPA 1026.4 1024.2 1021.2 1016.3 1014.1 1009.3 997.6 1000.8 1007.0 1017.3 1022.3 1022.5 1026.4 DAY 23 3 3 3 2 1 6 31 25 29 29 16 MIN. QNH PRESSURE IN HPA 1012.8 1008.8 1004.3 1001.5 1001.8 995.3 990.8 993.9 997.9 1003.4 1011.2 1011.1 990.8 DAY 18 15 25 25 25 14 26 19 12 1 19 4 MEAN QFF PRESSURE IN HPA 1020.7 1017.4 1012.8 1010.5 1007.4 1001.7 995.2 997.4 1003.2 1012.0 1015.9 1018.7 1009.4 MAX. QFF PRESSURE IN HPA 1026.7 1024.5 1021.5 1016.6 1014.4 1009.5 997.8 1001.0 1007.2 1017.6 1022.6 1022.8 1026.7 DAY 23 3 3 3 2 1 6 31 25 29 29 16 MIN. QFF PRESSURE IN HPA 1013.1 1009.1 1004.6 1001.7 1002.0 995.5 991.0 994.1 998.1 1003.6 1011.5 1011.4 991.0 DAY 18 15 25 25 25 14 26 19 12 1 19 4 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1020.0 1016.7 1012.3 1010.1 1006.8 1001.4 994.9 997.4 1003.1 1012.0 1015.6 1017.9 1009.0 MAX. QFE PRESSURE IN HPA 1025.3 1024.0 1021.0 1016.5 1013.7 1009.3 998.0 1001.1 1007.5 1017.3 1022.4 1022.3 1025.3 DAY 23 3 3 3 2 1 23 29 21 15 29 16 MIN. QFE PRESSURE IN HPA 1011.8 1009.2 1005.1 1002.1 1001.8 996.0 990.7 993.3 998.0 1003.1 1010.4 1009.1 990.7 DAY 18 12 25 25 30 29 27 19 12 1 19 23 MEAN QNH PRESSURE IN HPA 1020.5 1017.2 1012.8 1010.6 1007.3 1001.9 995.4 997.8 1003.6 1012.5 1016.1 1018.4 1009.5 MAX. QNH PRESSURE IN HPA 1025.8 1024.5 1021.5 1017.0 1014.2 1009.8 998.5 1001.6 1008.0 1017.8 1022.9 1022.8 1025.8 DAY 23 3 3 3 2 1 23 29 21 15 29 16 MIN. QNH PRESSURE IN HPA 1012.3 1009.7 1005.6 1002.6 1002.3 996.5 991.2 993.8 998.5 1003.6 1010.9 1009.6 991.2 DAY 18 12 25 25 30 29 27 19 12 1 19 23 MEAN QFF PRESSURE IN HPA 1020.8 1017.5 1013.1 1010.8 1007.6 1002.2 995.6 998.1 1003.9 1012.7 1016.4 1018.7 1009.8 MAX. QFF PRESSURE IN HPA 1026.1 1024.8 1021.8 1017.3 1014.5 1010.0 998.7 1001.8 1008.2 1018.1 1023.2 1023.1 1026.1 DAY 23 3 3 3 2 1 23 29 21 15 29 16 MIN. QFF PRESSURE IN HPA 1012.6 1010.0 1005.9 1002.8 1002.5 996.7 991.4 994.0 998.7 1003.8 1011.2 1009.9 991.4 DAY 18 12 25 25 30 29 27 19 12 1 19 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1021.5 1018.1 1013.7 1011.4 1007.9 1002.3 995.7 998.2 1004.2 1013.5 1017.0 1019.4 1010.2 MAX. QFE PRESSURE IN HPA 1026.9 1025.4 1023.6 1017.8 1014.9 1010.9 998.8 1002.3 1008.6 1019.1 1023.4 1023.9 1026.9 DAY 23 2 3 3 2 1 8 29 29 29 28 16 MIN. QFE PRESSURE IN HPA 1012.7 1010.5 1007.3 1003.7 1002.1 996.4 991.5 994.0 999.5 1004.9 1010.8 1012.7 991.5 DAY 18 14 25 24 30 29 26 19 11 1 19 23 MEAN QNH PRESSURE IN HPA 1022.0 1018.6 1014.1 1011.9 1008.3 1002.8 996.2 998.7 1004.7 1014.0 1017.5 1019.9 1010.7 MAX. QNH PRESSURE IN HPA 1027.4 1025.9 1024.1 1018.3 1015.4 1011.4 999.3 1002.8 1009.1 1019.6 1023.9 1024.4 1027.4 DAY 23 2 3 3 2 1 8 29 29 29 28 16 MIN. QNH PRESSURE IN HPA 1013.2 1011.0 1007.8 1004.2 1002.6 996.9 992.0 994.5 1000.0 1005.4 1011.3 1013.2 992.0 DAY 18 14 25 24 30 29 26 19 11 1 19 23 MEAN QFF PRESSURE IN HPA 1022.3 1018.9 1014.4 1012.2 1008.6 1003.0 996.4 999.0 1005.0 1014.2 1017.8 1020.2 1011.0 MAX. QFF PRESSURE IN HPA 1027.7 1026.2 1024.4 1018.6 1015.7 1011.6 999.5 1003.0 1009.3 1019.9 1024.2 1024.7 1027.7 DAY 23 2 3 3 2 1 8 29 29 29 29 16 MIN. QFF PRESSURE IN HPA 1013.5 1011.3 1008.1 1004.4 1002.8 997.1 992.2 994.7 1000.2 1005.6 1011.6 1013.5 992.2 DAY 18 14 25 24 30 29 26 19 11 1 19 23 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1020.5 1017.4 1012.8 1010.7 1007.3 1001.9 995.4 997.8 1003.6 1012.7 1016.0 1018.0 1009.5 MAX. QFE PRESSURE IN HPA 1026.0 1025.0 1022.1 1017.0 1014.3 1009.9 999.0 1001.5 1007.7 1018.0 1022.4 1022.7 1026.0 DAY 23 2 3 3 1 1 8 29 21 15 28 14 MIN. QFE PRESSURE IN HPA 1010.9 1008.7 1005.7 1001.9 1001.6 996.4 991.2 993.9 998.1 1004.1 1008.8 1011.7 991.2 DAY 18 14 24 24 30 29 25 19 11 1 19 7 MEAN QNH PRESSURE IN HPA 1020.9 1017.9 1013.3 1011.2 1007.8 1002.4 995.9 998.2 1004.1 1013.2 1016.5 1018.5 1010.0 MAX. QNH PRESSURE IN HPA 1026.5 1025.5 1022.6 1017.5 1014.8 1010.4 999.5 1002.0 1008.2 1018.5 1022.9 1023.2 1026.5 DAY 23 2 3 3 1 1 8 29 21 15 28 14 MIN. QNH PRESSURE IN HPA 1011.4 1009.2 1006.2 1002.4 1002.1 996.9 991.7 994.4 998.6 1004.6 1009.3 1012.2 991.7 DAY 18 14 24 24 30 29 25 19 11 1 19 7 MEAN QFF PRESSURE IN HPA 1021.2 1018.2 1013.6 1011.5 1008.1 1002.6 996.1 998.5 1004.4 1013.4 1016.7 1018.8 1010.3 MAX. QFF PRESSURE IN HPA 1026.8 1025.8 1022.9 1017.8 1015.1 1010.6 999.7 1002.2 1008.4 1018.8 1023.2 1023.5 1026.8 DAY 23 2 3 3 1 1 8 29 21 15 28 14 MIN. QFF PRESSURE IN HPA 1011.7 1009.5 1006.5 1002.7 1002.3 997.1 991.9 994.6 998.8 1004.8 1009.6 1012.5 991.9 DAY 18 14 24 24 30 29 25 19 11 1 19 7 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1018.8 1015.4 1010.9 1009.0 1006.1 1000.8 994.4 996.6 1002.1 1011.1 1014.7 1016.8 1008.1 MAX. QFE PRESSURE IN HPA 1024.3 1023.7 1019.8 1015.0 1012.9 1008.8 998.1 1001.2 1006.3 1016.6 1021.0 1020.9 1024.3 DAY 22 2 3 3 1 1 8 31 24 15 28 14 MIN. QFE PRESSURE IN HPA 1010.2 1004.1 1003.2 999.3 1000.3 994.8 990.0 992.8 996.8 1002.5 1007.6 1010.2 990.0 DAY 18 14 24 24 30 14 26 19 11 1 19 7 MEAN QNH PRESSURE IN HPA 1019.3 1015.9 1011.4 1009.5 1006.6 1001.3 994.9 997.1 1002.6 1011.6 1015.2 1017.3 1008.6 MAX. QNH PRESSURE IN HPA 1024.8 1024.2 1020.3 1015.5 1013.4 1009.3 998.6 1001.7 1006.8 1017.1 1021.5 1021.4 1024.8 DAY 22 2 3 3 1 1 8 31 24 15 28 14 MIN. QNH PRESSURE IN HPA 1010.7 1004.6 1003.7 999.8 1000.8 995.3 990.5 993.3 997.3 1003.0 1008.1 1010.7 990.5 DAY 18 14 24 24 30 14 26 19 11 1 19 7 MEAN QFF PRESSURE IN HPA 1019.6 1016.2 1011.7 1009.8 1006.9 1001.5 995.1 997.4 1002.8 1011.9 1015.5 1017.6 1008.8 MAX. QFF PRESSURE IN HPA 1025.1 1024.5 1020.6 1015.8 1013.7 1009.5 998.8 1001.9 1007.0 1017.4 1021.8 1021.7 1025.1 DAY 22 2 3 3 1 1 8 31 24 15 28 14 MIN. QFF PRESSURE IN HPA 1011.0 1004.9 1004.0 1000.1 1001.0 995.5 990.7 993.5 997.5 1003.2 1008.4 1011.0 990.7 DAY 18 14 24 24 30 14 26 19 11 1 19 7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1019.3 1015.8 1011.1 1008.9 1005.6 1000.3 993.9 996.4 1002.1 1011.2 1015.2 1017.5 1008.1 MAX. QFE PRESSURE IN HPA 1024.3 1023.7 1019.8 1014.5 1012.4 1008.0 997.8 1000.8 1006.8 1016.7 1021.6 1021.8 1024.3 DAY 22 2 2 3 1 1 8 31 24 15 28 15 MIN. QFE PRESSURE IN HPA 1012.6 1003.1 1002.8 998.4 1000.8 994.5 989.4 993.1 996.7 1002.7 1008.4 1011.1 989.4 DAY 18 14 24 24 30 14 25 19 11 1 19 7 MEAN QNH PRESSURE IN HPA 1019.8 1016.2 1011.6 1009.4 1006.1 1000.8 994.4 996.9 1002.6 1011.7 1015.7 1017.9 1008.6 MAX. QNH PRESSURE IN HPA 1024.8 1024.2 1020.3 1015.0 1012.9 1008.5 998.3 1001.3 1007.3 1017.2 1022.1 1022.3 1024.8 DAY 22 2 2 3 1 1 8 31 24 15 28 15 MIN. QNH PRESSURE IN HPA 1013.1 1003.6 1003.3 998.9 1001.3 995.0 989.9 993.6 997.2 1003.2 1008.9 1011.6 989.9 DAY 18 14 24 24 30 14 25 19 11 1 19 7 MEAN QFF PRESSURE IN HPA 1020.1 1016.5 1011.9 1009.7 1006.4 1001.0 994.7 997.1 1002.8 1012.0 1015.9 1018.3 1008.9 MAX. QFF PRESSURE IN HPA 1025.1 1024.5 1020.6 1015.3 1013.2 1008.7 998.5 1001.5 1007.5 1017.5 1022.4 1022.6 1025.1 DAY 22 2 2 3 1 1 8 31 24 15 28 15 MIN. QFF PRESSURE IN HPA 1013.4 1003.9 1003.6 999.2 1001.5 995.2 990.1 993.8 997.4 1003.4 1009.2 1011.9 990.1 DAY 18 14 24 24 30 14 25 19 11 1 19 7 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1020.2 1016.7 1012.4 1010.2 1006.6 1001.0 994.8 997.2 1003.2 1012.1 1015.7 1018.1 1009.0 MAX. QFE PRESSURE IN HPA 1025.4 1024.7 1021.4 1016.1 1013.6 1008.6 998.3 1001.5 1007.5 1017.3 1022.3 1023.0 1025.4 DAY 22 2 2 2 1 1 8 31 24 28 28 14 MIN. QFE PRESSURE IN HPA 1013.2 1005.7 1004.1 1000.2 1002.3 995.3 989.9 993.8 998.0 1003.9 1009.4 1011.2 989.9 DAY 17 14 24 24 24 29 25 18 11 1 19 3 MEAN QNH PRESSURE IN HPA 1020.7 1017.2 1012.9 1010.7 1007.1 1001.5 995.2 997.7 1003.7 1012.5 1016.2 1018.6 1009.5 MAX. QNH PRESSURE IN HPA 1025.9 1025.2 1021.9 1016.6 1014.1 1009.1 998.8 1002.0 1008.0 1017.8 1022.8 1023.5 1025.9 DAY 22 2 2 2 1 1 8 31 24 28 28 14 MIN. QNH PRESSURE IN HPA 1013.7 1006.2 1004.6 1000.7 1002.8 995.8 990.4 994.3 998.5 1004.4 1009.9 1011.7 990.4 DAY 17 14 24 24 24 29 25 18 11 1 19 3 MEAN QFF PRESSURE IN HPA 1021.0 1017.5 1013.2 1010.9 1007.3 1001.7 995.5 998.0 1003.9 1012.8 1016.5 1018.9 1009.8 MAX. QFF PRESSURE IN HPA 1026.2 1025.5 1022.2 1016.9 1014.4 1009.3 999.0 1002.2 1008.2 1018.1 1023.1 1023.8 1026.2 DAY 22 2 2 2 1 1 8 31 24 28 28 14 MIN. QFF PRESSURE IN HPA 1014.0 1006.5 1004.9 1000.9 1003.0 996.0 990.6 994.5 998.7 1004.6 1010.2 1012.0 990.6 DAY 17 14 24 24 24 29 25 18 11 1 19 3 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1020.1 1016.7 1012.4 1010.1 1006.7 1000.9 994.8 997.2 1003.0 1011.9 1015.8 1018.0 1009.0 MAX. QFE PRESSURE IN HPA 1025.7 1024.1 1021.1 1016.4 1014.0 1008.3 997.8 1001.2 1006.8 1017.1 1022.0 1022.1 1025.7 DAY 22 2 2 2 1 1 22 29 24 28 28 15 MIN. QFE PRESSURE IN HPA 1012.5 1006.7 1004.6 1000.5 1002.3 995.2 990.1 993.6 997.8 1004.1 1011.4 1010.7 990.1 DAY 17 14 26 24 24 29 25 18 11 1 19 3 MEAN QNH PRESSURE IN HPA 1020.6 1017.2 1012.9 1010.6 1007.2 1001.3 995.3 997.7 1003.5 1012.4 1016.3 1018.5 1009.4 MAX. QNH PRESSURE IN HPA 1026.2 1024.6 1021.6 1016.9 1014.5 1008.8 998.3 1001.7 1007.3 1017.6 1022.5 1022.6 1026.2 DAY 22 2 2 2 1 1 22 29 24 28 28 15 MIN. QNH PRESSURE IN HPA 1013.0 1007.2 1005.1 1001.0 1002.8 995.7 990.6 994.1 998.3 1004.6 1011.9 1011.2 990.6 DAY 17 14 26 24 24 29 25 18 11 1 19 3 MEAN QFF PRESSURE IN HPA 1020.9 1017.5 1013.2 1010.8 1007.4 1001.6 995.5 998.0 1003.7 1012.7 1016.6 1018.7 1009.7 MAX. QFF PRESSURE IN HPA 1026.5 1024.9 1021.9 1017.2 1014.8 1009.0 998.5 1001.9 1007.5 1017.9 1022.8 1022.9 1026.5 DAY 22 2 2 2 1 1 22 29 24 28 28 15 MIN. QFF PRESSURE IN HPA 1013.3 1007.5 1005.4 1001.2 1003.0 995.9 990.8 994.3 998.5 1004.8 1012.2 1011.5 990.8 DAY 17 14 26 24 24 29 25 18 11 1 19 3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 11.8 13.1 19.0 23.4 30.7 34.0 36.6 34.4 32.4 27.5 21.5 15.8 25.0 MINIMUN AIR TEMPERATURE (C) 6.5 7.6 12.7 17.0 23.7 26.0 27.9 26.0 23.7 19.8 15.8 10.5 18.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 3 26 30 31 31 25 12 5 0 163 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) 1.0 2.0 7.0 11.0 18.0 24.0 25.0 22.0 20.0 14.0 10.0 5.0 1.0 DAY 24 1 26 3 2 5 1 22 23 29 20 11 MAXIMUM AIR TEMPERATURE (C) 18.0 18.9 25.6 30.4 37.8 41.3 45.8 42.7 42.2 36.9 29.1 22.3 32.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 1 18 31 30 31 31 30 28 16 0 216 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 24.0 25.0 31.0 36.0 42.0 46.0 50.0 46.0 47.0 42.0 33.0 26.0 50.0 DAY 6 28 31 15 19 7 22 16 4 3 1 1 DIF. BETWEEN (MAX.-MIN.) (C) 11.5 11.3 12.9 13.4 14.1 15.3 17.9 16.7 18.5 17.1 13.3 11.8 14.5 MEAN DAILY TEMP. (MDT) (C) 12.2 13.2 19.2 23.7 30.8 33.7 36.9 34.4 33.0 28.4 22.5 16.4 25.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 9.5 88.5 302.5 380.5 492.0 415.0 359.0 228.0 63.0 0.0 2338.0 HEATING DEG. DAYS(BASE 18 0C) 179.0 138.5 16.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 61.5 396.0 DEWPOINT (MEAN C) 2.8 4.2 5.8 11.1 14.4 12.2 13.2 11.9 12.2 12.7 12.2 9.1 10.1 MIXING RATIO (G/KG) 4.87 5.31 6.15 8.54 10.62 9.21 10.04 9.03 9.12 9.74 9.27 7.39 8.27 VAPOUR PRESSURE (HPA) 7.88 8.59 9.88 13.67 16.88 14.59 15.80 14.29 14.50 15.56 14.89 11.91 13.20 SATURATION DEF. (HPA) 6.51 7.10 13.01 16.42 28.90 40.57 48.71 42.24 37.04 23.30 11.79 6.67 23.52 RELATIVE HUMIDITY (MEAN %) 58 59 48 50 41 30 28 29 33 46 59 67 46 RELATIVE HUMIDITY (MAX. %) 81 81 72 77 65 51 50 46 52 69 79 84 67 RELATIVE HUMIDITY (MIN. %) 32 35 25 27 22 14 12 13 14 20 32 43 24 RELATIVE HUMIDITY (MEAN% 03UTC) 79 78 67 72 61 46 47 44 49 65 75 82 64 RELATIVE HUMIDITY (MEAN% 09UTC) 42 46 32 36 26 16 16 16 19 27 40 53 31 RELATIVE HUMIDITY (MEAN% 15UTC) 47 42 34 36 29 20 19 22 25 37 51 59 35 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 2.0 14.0 12.5 44.1 3.0 0.0 0.0 0.0 0.0 0.0 7.1 18.1 100.8 DAYS WITH PRECIPITATION >=10 0 0 0 1 0 0 0 0 0 0 0 0 1 DAYS WITH PRECIPITATION >= 5 0 1 1 3 0 0 0 0 0 0 0 1 6 DAYS WITH PRECIPITATION >= 1 2 3 3 5 1 0 0 0 0 0 3 7 24 DAYS WITH PRECIPITATION 2 7 4 11 1 1 0 0 0 0 9 8 43 GREATEST DAILY PRECIPITATION 1.0 8.0 7.5 23.0 3.0 0.0 0.0 0.0 0.0 0.0 2.0 5.0 23.0 DAY 15 8 5 23 13 ** ** ** ** ** 5 26 DAY WITH THUNDER STORM 0 1 2 7 4 0 0 0 0 1 4 3 22 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 8 5 19 3 19 20 20 25 13 6 1 1 140 WIND DIRECTION (PREVAILING) 315 135 315 270 270 270 270 270 315 270 315 315 270 PREVAILING WIND SPEED(KNOTS) 7.0 10.6 6.5 6.1 7.5 9.6 10.0 9.8 9.8 5.4 6.0 6.9 7.7 PREVAILING WIND PERCENT 26.2 19.0 21.4 20.4 25.8 44.2 36.7 47.2 35.4 27.8 14.2 20.2 27.2 CALMS PERCENT OF WIND 14.5 27.6 13.3 9.2 11.3 4.2 10.1 6.0 14.6 31.9 31.3 29.8 16.9 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 284 203 197 297 290 295 282 291 295 277 306 290 289 VECTOR WIND MAGNITUDE(KNOTS) 1.6 0.7 0.2 0.6 3.3 8.9 6.2 8.5 5.5 2.1 0.6 0.8 3.2 WIND STEADINESES (MEAN %) 29.1 13.5 3.0 8.8 49.3 89.0 78.5 88.5 82.1 48.8 13.3 15.4 48.5 WIND SPEED (MEAN KNOTS) 5.5 5.2 6.7 6.8 6.7 10.0 7.9 9.6 6.7 4.3 4.5 5.2 6.6 FASTEST WIND DIRECTION 180 120 130 120 300 330 300 280 300 340 80 80 330 FASTEST WIND SPEED (KNOTS) 20 32 25 25 30 40 30 26 28 18 20 20 40 DAY 15 20 28 19 31 19 5 18 5 10 5 4 DAYS WITH SKY CLEAR (0-2)/8 17 15 20 8 14 30 30 31 30 27 10 15 247 DAYS WITH P.CLOUDY (3-6)/8 10 8 5 17 15 0 1 0 0 3 18 12 89 DAYS WITH CLOUDY (7-8)/8 4 6 6 5 2 0 0 0 0 1 2 4 30 DAYS WITH VISIBILITY =< 2 KM 6 1 4 2 8 7 8 11 2 6 0 2 57 DURATION OF SUNSHINE HOURS 202.5 194.4 216.2 252.3 254.0 319.4 311.1 285.1 301.6 270.5 159.4 164.7 2931.2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1016.9 1016.8 1011.7 1009.8 1007.0 1001.3 996.1 998.9 1004.7 1011.0 1016.0 1016.1 1008.9 MAX. QFE PRESSURE IN HPA 1026.0 1026.1 1017.7 1016.2 1014.5 1010.5 1001.2 1005.5 1009.8 1017.2 1022.2 1023.7 1026.1 DAY-HOUR 19- 6 5- 6 4- 6 4-21 2- 6 2- 6 20- 6 31- 6 23- 6 14- 6 20- 6 19- 6 MIN. QFE PRESSURE IN HPA 1006.2 1005.5 1002.8 1000.6 1002.3 996.1 992.5 994.1 1000.0 1005.0 1007.8 1007.8 992.5 DAY-HOUR 25- 0 2-12 10-12 23-12 20-15 23-15 29-15 15-15 1-15 4- 0 1-12 5- 0 MEAN QNH PRESSURE IN HPA 1017.4 1017.3 1012.2 1010.3 1007.5 1001.7 996.6 999.4 1005.1 1011.5 1016.5 1016.6 1009.3 MAX. QNH PRESSURE IN HPA 1026.5 1026.6 1018.2 1016.7 1015.0 1011.0 1001.7 1006.0 1010.3 1017.7 1022.7 1024.2 1026.6 DAY-HOUR 19- 6 5- 6 4- 6 4-21 2- 6 2- 6 20- 6 31- 6 23- 6 14- 6 20- 6 19- 6 MIN. QNH PRESSURE IN HPA 1006.7 1006.0 1003.3 1001.1 1002.8 996.6 993.0 994.6 1000.5 1005.5 1008.3 1008.3 993.0 DAY-HOUR 25- 0 2-12 10-12 23-12 20-15 23-15 29-15 15-15 1-15 4- 0 1-12 5- 0 MEAN QFF PRESSURE IN HPA 1017.7 1017.6 1012.5 1010.5 1007.8 1002.0 996.9 999.7 1005.4 1011.8 1016.8 1016.9 1009.6 MAX. QFF PRESSURE IN HPA 1026.8 1026.9 1018.5 1017.0 1015.3 1011.2 1001.9 1006.2 1010.5 1018.0 1023.0 1024.5 1026.9 DAY-HOUR 19- 6 5- 6 4- 6 4-21 2- 6 2- 6 20- 6 31- 6 23- 6 14- 6 20- 6 19- 6 MIN. QFF PRESSURE IN HPA 1007.0 1006.3 1003.6 1001.3 1003.0 996.8 993.2 994.8 1000.7 1005.7 1008.5 1008.6 993.2 DAY-HOUR 25- 0 2-12 10-12 23-12 20-15 23-15 29-15 15-15 1-15 4- 0 1-12 5- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1017.0 1016.7 1011.8 1009.4 1006.6 1000.7 995.7 998.6 1004.2 1010.6 1015.6 1016.0 1008.6 MAX. QFE PRESSURE IN HPA 1025.6 1024.9 1016.4 1015.0 1012.0 1009.0 999.0 1003.8 1007.3 1015.3 1020.2 1022.0 1025.6 DAY 19 5 4 5 2 2 2 31 21 22 21 19 MIN. QFE PRESSURE IN HPA 1006.2 1008.8 1005.6 1001.9 1003.4 996.5 992.8 995.1 1000.3 1005.0 1007.9 1007.8 992.8 DAY 25 20 19 24 25 24 30 16 4 4 1 5 MEAN QNH PRESSURE IN HPA 1017.5 1017.2 1012.2 1009.9 1007.1 1001.2 996.2 999.0 1004.7 1011.1 1016.1 1016.5 1009.1 MAX. QNH PRESSURE IN HPA 1026.1 1025.4 1016.9 1015.5 1012.5 1009.5 999.5 1004.3 1007.8 1015.8 1020.7 1022.5 1026.1 DAY 19 5 4 5 2 2 2 31 21 22 21 19 MIN. QNH PRESSURE IN HPA 1006.7 1009.3 1006.1 1002.4 1003.9 997.0 993.3 995.6 1000.8 1005.5 1008.4 1008.3 993.3 DAY 25 20 19 24 25 24 30 16 4 4 1 5 MEAN QFF PRESSURE IN HPA 1017.8 1017.5 1012.5 1010.1 1007.4 1001.4 996.4 999.3 1004.9 1011.4 1016.4 1016.8 1009.3 MAX. QFF PRESSURE IN HPA 1026.4 1025.7 1017.2 1015.8 1012.8 1009.7 999.7 1004.5 1008.0 1016.1 1021.0 1022.8 1026.4 DAY 19 5 4 5 2 2 2 31 23 29 21 19 MIN. QFF PRESSURE IN HPA 1007.0 1009.6 1006.4 1002.6 1004.1 997.2 993.5 995.8 1001.0 1005.7 1008.6 1008.6 993.5 DAY 25 20 19 24 25 24 30 16 4 4 1 5 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1017.0 1016.7 1011.7 1009.8 1007.3 1001.3 996.4 998.9 1004.7 1011.2 1016.1 1016.2 1008.9 MAX. QFE PRESSURE IN HPA 1025.6 1025.5 1016.0 1015.2 1013.0 1009.7 1000.4 1004.2 1008.1 1015.9 1020.6 1022.3 1025.6 DAY 19 5 4 5 2 2 20 30 24 22 20 19 MIN. QFE PRESSURE IN HPA 1007.8 1008.3 1003.6 1002.7 1003.4 997.0 993.6 995.7 1000.7 1006.0 1009.3 1009.7 993.6 DAY 25 20 10 24 20 23 29 15 4 3 1 5 MEAN QNH PRESSURE IN HPA 1017.4 1017.2 1012.1 1010.3 1007.8 1001.8 996.9 999.4 1005.2 1011.7 1016.6 1016.7 1009.4 MAX. QNH PRESSURE IN HPA 1026.1 1026.0 1016.5 1015.7 1013.5 1010.2 1000.9 1004.7 1008.6 1016.4 1021.1 1022.8 1026.1 DAY 19 5 4 5 2 2 20 30 24 22 20 19 MIN. QNH PRESSURE IN HPA 1008.3 1008.8 1004.1 1003.2 1003.9 997.5 994.1 996.2 1001.2 1006.5 1009.8 1010.2 994.1 DAY 25 20 10 24 20 23 29 15 4 3 1 5 MEAN QFF PRESSURE IN HPA 1017.8 1017.5 1012.4 1010.6 1008.1 1002.1 997.2 999.6 1005.4 1012.0 1016.9 1017.0 1009.7 MAX. QFF PRESSURE IN HPA 1026.4 1026.3 1016.8 1016.0 1013.8 1010.4 1001.1 1004.9 1008.8 1016.7 1021.4 1023.1 1026.4 DAY 19 5 4 5 2 2 20 30 24 22 20 19 MIN. QFF PRESSURE IN HPA 1008.6 1009.1 1004.4 1003.5 1004.1 997.7 994.3 996.4 1001.4 1006.8 1010.1 1010.5 994.3 DAY 25 20 10 24 20 24 29 15 4 3 1 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1018.2 1018.1 1013.1 1011.2 1008.4 1002.3 997.2 999.9 1006.0 1012.6 1017.4 1017.5 1010.2 MAX. QFE PRESSURE IN HPA 1026.0 1026.1 1017.7 1016.0 1014.5 1010.5 1001.2 1005.5 1009.8 1017.2 1022.2 1023.7 1026.1 DAY 19 5 4 5 2 2 20 31 23 14 20 19 MIN. QFE PRESSURE IN HPA 1010.3 1009.8 1004.4 1003.6 1004.7 997.6 994.5 996.3 1002.1 1007.7 1009.2 1012.0 994.5 DAY 25 20 10 24 20 23 29 15 6 3 1 5 MEAN QNH PRESSURE IN HPA 1018.7 1018.6 1013.6 1011.7 1008.9 1002.8 997.7 1000.3 1006.5 1013.1 1017.9 1018.0 1010.7 MAX. QNH PRESSURE IN HPA 1026.5 1026.6 1018.2 1016.5 1015.0 1011.0 1001.7 1006.0 1010.3 1017.7 1022.7 1024.2 1026.6 DAY 19 5 4 5 2 2 20 31 23 14 20 19 MIN. QNH PRESSURE IN HPA 1010.8 1010.3 1004.9 1004.1 1005.2 998.1 995.0 996.8 1002.6 1008.2 1009.7 1012.5 995.0 DAY 25 20 10 24 20 23 29 15 6 3 1 5 MEAN QFF PRESSURE IN HPA 1019.0 1018.9 1013.9 1012.0 1009.2 1003.0 997.9 1000.6 1006.7 1013.3 1018.2 1018.3 1010.9 MAX. QFF PRESSURE IN HPA 1026.8 1026.9 1018.5 1016.8 1015.3 1011.2 1001.9 1006.2 1010.5 1018.0 1023.0 1024.5 1026.9 DAY 19 5 4 5 2 2 20 31 23 14 20 19 MIN. QFF PRESSURE IN HPA 1011.1 1010.6 1005.2 1004.4 1005.4 998.3 995.2 997.0 1002.8 1008.4 1009.9 1012.8 995.2 DAY 25 20 10 24 20 23 29 15 6 3 1 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1017.2 1017.5 1012.6 1010.7 1008.0 1002.1 996.9 999.6 1005.4 1011.7 1016.3 1016.2 1009.5 MAX. QFE PRESSURE IN HPA 1024.6 1025.8 1017.3 1015.2 1013.7 1010.3 1000.6 1005.0 1009.0 1016.5 1021.0 1021.6 1025.8 DAY 19 5 26 4 2 2 20 30 23 22 20 18 MIN. QFE PRESSURE IN HPA 1008.5 1008.1 1003.8 1002.5 1004.5 997.2 994.0 995.6 1001.9 1006.7 1008.9 1011.0 994.0 DAY 15 2 10 23 20 23 29 15 6 3 1 7 MEAN QNH PRESSURE IN HPA 1017.7 1018.0 1013.1 1011.2 1008.5 1002.5 997.4 1000.1 1005.9 1012.2 1016.8 1016.7 1010.0 MAX. QNH PRESSURE IN HPA 1025.1 1026.3 1017.8 1015.7 1014.2 1010.8 1001.1 1005.5 1009.5 1017.0 1021.5 1022.1 1026.3 DAY 19 5 26 4 2 2 20 30 23 22 20 18 MIN. QNH PRESSURE IN HPA 1009.0 1008.6 1004.3 1003.0 1005.0 997.7 994.5 996.1 1002.4 1007.2 1009.4 1011.5 994.5 DAY 15 2 10 23 20 23 29 15 6 3 1 7 MEAN QFF PRESSURE IN HPA 1018.0 1018.3 1013.4 1011.4 1008.8 1002.8 997.6 1000.3 1006.1 1012.5 1017.1 1016.9 1010.3 MAX. QFF PRESSURE IN HPA 1025.4 1026.6 1018.1 1016.0 1014.4 1011.0 1001.3 1005.7 1009.7 1017.2 1021.8 1022.4 1026.6 DAY 19 5 26 5 2 2 20 30 23 22 20 18 MIN. QFF PRESSURE IN HPA 1009.3 1008.9 1004.6 1003.2 1005.2 997.9 994.7 996.3 1002.6 1007.4 1009.6 1011.8 994.7 DAY 15 2 10 23 20 23 29 15 6 3 1 7 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1015.7 1015.8 1010.8 1008.8 1006.4 1001.1 995.7 998.4 1004.0 1010.2 1015.1 1015.0 1008.1 MAX. QFE PRESSURE IN HPA 1023.3 1023.6 1015.2 1014.4 1012.2 1008.8 998.9 1003.9 1007.5 1014.6 1019.7 1020.6 1023.6 DAY 19 5 25 4 2 2 1 30 23 21 20 18 MIN. QFE PRESSURE IN HPA 1007.1 1005.5 1002.8 1000.6 1003.2 996.3 992.8 994.4 1000.4 1005.2 1007.8 1009.4 992.8 DAY 15 2 10 23 25 23 29 15 4 3 1 4 MEAN QNH PRESSURE IN HPA 1016.2 1016.3 1011.3 1009.3 1006.9 1001.5 996.2 998.9 1004.5 1010.7 1015.6 1015.5 1008.6 MAX. QNH PRESSURE IN HPA 1023.8 1024.1 1015.7 1014.9 1012.7 1009.3 999.4 1004.4 1008.0 1015.1 1020.2 1021.1 1024.1 DAY 19 5 25 4 2 2 1 30 23 21 20 18 MIN. QNH PRESSURE IN HPA 1007.6 1006.0 1003.3 1001.1 1003.7 996.8 993.3 994.9 1000.9 1005.7 1008.3 1009.9 993.3 DAY 15 2 10 23 25 23 29 15 4 3 1 4 MEAN QFF PRESSURE IN HPA 1016.5 1016.6 1011.6 1009.6 1007.1 1001.8 996.4 999.1 1004.7 1010.9 1015.9 1015.8 1008.8 MAX. QFF PRESSURE IN HPA 1024.1 1024.4 1016.0 1015.2 1012.9 1009.5 999.6 1004.6 1008.2 1015.3 1020.5 1021.4 1024.4 DAY 19 5 25 4 2 2 1 30 23 21 20 18 MIN. QFF PRESSURE IN HPA 1007.9 1006.3 1003.6 1001.3 1003.9 997.0 993.5 995.1 1001.1 1005.9 1008.5 1010.2 993.5 DAY 15 2 10 23 25 23 29 15 4 3 1 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1016.3 1015.8 1010.6 1008.6 1005.9 1000.5 995.3 998.2 1003.8 1010.2 1015.5 1015.5 1008.0 MAX. QFE PRESSURE IN HPA 1024.7 1023.6 1015.0 1014.5 1011.5 1007.6 998.5 1004.0 1006.8 1014.7 1019.8 1020.9 1024.7 DAY 19 4 25 4 2 1 1 30 21 21 20 18 MIN. QFE PRESSURE IN HPA 1008.3 1006.6 1003.8 1001.1 1002.3 996.1 992.5 994.1 1000.0 1005.2 1008.9 1009.0 992.5 DAY 24 2 10 23 20 23 29 15 1 3 1 4 MEAN QNH PRESSURE IN HPA 1016.8 1016.3 1011.1 1009.1 1006.4 1001.0 995.8 998.7 1004.3 1010.7 1016.0 1016.0 1008.5 MAX. QNH PRESSURE IN HPA 1025.2 1024.1 1015.5 1015.0 1012.0 1008.1 999.0 1004.5 1007.3 1015.2 1020.3 1021.4 1025.2 DAY 19 4 25 4 2 1 1 30 21 21 20 18 MIN. QNH PRESSURE IN HPA 1008.8 1007.1 1004.3 1001.6 1002.8 996.6 993.0 994.6 1000.5 1005.7 1009.4 1009.5 993.0 DAY 24 2 10 23 20 23 29 15 1 3 1 4 MEAN QFF PRESSURE IN HPA 1017.1 1016.6 1011.4 1009.4 1006.6 1001.2 996.0 998.9 1004.5 1010.9 1016.2 1016.3 1008.8 MAX. QFF PRESSURE IN HPA 1025.5 1024.4 1015.8 1015.3 1012.3 1008.3 999.2 1004.7 1007.5 1015.4 1020.6 1021.7 1025.5 DAY 19 4 25 4 2 1 1 30 21 21 20 18 MIN. QFF PRESSURE IN HPA 1009.1 1007.4 1004.6 1001.8 1003.0 996.8 993.2 994.8 1000.7 1005.9 1009.7 1009.8 993.2 DAY 24 2 10 23 20 23 29 15 1 3 1 4 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1017.1 1016.8 1011.6 1009.9 1006.8 1001.2 996.0 999.1 1004.7 1011.1 1016.3 1016.3 1008.9 MAX. QFE PRESSURE IN HPA 1025.1 1025.0 1015.9 1015.9 1012.5 1009.0 999.6 1004.6 1007.8 1015.8 1020.7 1021.5 1025.1 DAY 18 4 3 4 2 1 1 30 21 21 20 18 MIN. QFE PRESSURE IN HPA 1007.4 1009.1 1006.0 1002.7 1003.2 997.2 992.6 995.5 1000.8 1005.8 1010.8 1008.2 992.6 DAY 24 2 10 23 30 22 29 15 1 3 1 4 MEAN QNH PRESSURE IN HPA 1017.6 1017.3 1012.1 1010.4 1007.3 1001.7 996.5 999.6 1005.2 1011.5 1016.8 1016.8 1009.4 MAX. QNH PRESSURE IN HPA 1025.6 1025.5 1016.4 1016.4 1013.0 1009.5 1000.1 1005.1 1008.3 1016.3 1021.2 1022.0 1025.6 DAY 18 4 3 4 2 1 1 30 21 21 20 18 MIN. QNH PRESSURE IN HPA 1007.9 1009.6 1006.5 1003.2 1003.7 997.7 993.1 996.0 1001.3 1006.3 1011.3 1008.7 993.1 DAY 24 2 10 23 30 22 29 15 1 3 1 4 MEAN QFF PRESSURE IN HPA 1017.9 1017.6 1012.4 1010.6 1007.5 1001.9 996.7 999.8 1005.5 1011.8 1017.0 1017.0 1009.7 MAX. QFF PRESSURE IN HPA 1025.9 1025.8 1016.7 1016.7 1013.3 1009.7 1000.3 1005.3 1008.5 1016.5 1021.5 1022.3 1025.9 DAY 19 4 3 4 2 1 1 30 21 21 20 18 MIN. QFF PRESSURE IN HPA 1008.2 1009.9 1006.8 1003.4 1003.9 997.9 993.3 996.2 1001.5 1006.5 1011.6 1009.0 993.3 DAY 24 2 10 23 30 22 29 15 1 3 1 4 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1017.1 1017.0 1011.9 1009.9 1006.9 1001.0 996.0 999.1 1004.6 1010.9 1016.0 1016.1 1008.9 MAX. QFE PRESSURE IN HPA 1025.8 1025.0 1016.0 1016.2 1012.3 1009.2 999.1 1004.8 1007.6 1015.5 1020.3 1022.3 1025.8 DAY 18 4 3 4 2 1 16 30 22 21 20 18 MIN. QFE PRESSURE IN HPA 1006.3 1009.0 1006.3 1002.0 1003.2 997.1 992.9 995.6 1000.6 1005.3 1011.5 1008.1 992.9 DAY 24 20 9 23 30 22 29 15 1 3 1 4 MEAN QNH PRESSURE IN HPA 1017.6 1017.5 1012.4 1010.4 1007.4 1001.5 996.5 999.6 1005.1 1011.4 1016.5 1016.5 1009.4 MAX. QNH PRESSURE IN HPA 1026.3 1025.5 1016.5 1016.7 1012.8 1009.7 999.6 1005.3 1008.1 1016.0 1020.8 1022.8 1026.3 DAY 18 4 3 4 2 1 16 30 22 21 20 18 MIN. QNH PRESSURE IN HPA 1006.8 1009.5 1006.8 1002.5 1003.7 997.6 993.4 996.1 1001.1 1005.8 1012.0 1008.6 993.4 DAY 24 20 9 23 30 22 29 15 1 3 1 4 MEAN QFF PRESSURE IN HPA 1017.9 1017.7 1012.6 1010.7 1007.6 1001.8 996.8 999.8 1005.3 1011.6 1016.7 1016.8 1009.6 MAX. QFF PRESSURE IN HPA 1026.6 1025.8 1016.8 1017.0 1013.0 1009.9 999.8 1005.5 1008.3 1016.2 1021.1 1023.1 1026.6 DAY 18 4 3 4 2 1 20 30 22 21 20 18 MIN. QFF PRESSURE IN HPA 1007.1 1009.8 1007.1 1002.7 1003.9 997.8 993.6 996.3 1001.3 1006.0 1012.2 1008.9 993.6 DAY 24 20 9 23 30 22 29 15 1 3 7 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 14.1 14.2 22.3 22.7 29.8 34.2 34.2 ***** 32.2 28.4 17.8 15.3 ***** MINIMUN AIR TEMPERATURE (C) 9.4 9.1 17.3 17.8 23.6 26.9 26.6 ***** 23.6 21.5 11.6 9.8 ***** DAYS WITH MINIMUM TEMP. >=21 0 0 4 7 27 30 31 **** 30 19 1 0 **** DAYS WITH MINIMUM TEMP. <=-4 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 **** TEMPERATURE RECORDS LOWEST(C) 4.0 3.0 12.0 12.0 17.0 22.0 23.0 ***** 21.0 16.0 6.0 4.0 ***** DAY 13 4 24 15 7 2 6 ** 22 31 23 30 MAXIMUM AIR TEMPERATURE (C) 19.8 20.0 28.5 27.9 36.2 41.5 41.3 ***** 41.8 37.2 25.5 22.5 ***** DAYS WITH MAXIMUM TEMP. >=30 0 1 13 12 29 30 31 **** 30 29 2 0 **** DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 **** 0 0 0 0 **** TEMPERATURE RECORDS HIGHEST(C) 24.0 34.0 36.0 35.0 43.0 47.0 47.0 ***** 47.0 42.0 32.0 27.0 ***** DAY 18 28 31 1 26 18 14 ** 9 1 1 19 DIF. BETWEEN (MAX.-MIN.) (C) 10.4 10.9 11.2 10.1 12.6 14.6 14.7 ***** 18.2 15.7 13.9 12.7 ***** MEAN DAILY TEMP. (MDT) (C) 14.6 14.5 22.9 22.9 29.9 34.2 33.9 ***** 32.7 29.3 18.5 16.2 ***** COOLING DEG. DAYS(BASE 21 0C) 0.0 4.5 69.0 75.5 276.5 396.0 400.5 ****** 351.5 258.5 14.5 0.5 ****** HEATING DEG. DAYS(BASE 18 0C) 109.0 106.5 0.0 0.5 0.0 0.0 0.0 ****** 0.0 0.0 25.0 72.0 ****** DEWPOINT (MEAN C) 8.9 6.9 11.8 12.8 15.8 16.3 15.1 ***** 13.9 16.1 8.6 8.8 ***** MIXING RATIO (G/KG) 7.36 6.41 8.84 9.55 11.64 12.19 11.17 ****** 10.36 11.99 7.21 7.22 ****** VAPOUR PRESSURE (HPA) 11.85 10.36 14.15 15.26 18.45 19.21 17.56 ****** 16.44 19.06 11.63 11.67 ****** SATURATION DEF. (HPA) 4.78 6.50 13.58 13.47 25.06 36.68 37.95 ****** 34.56 21.59 9.78 6.51 ****** RELATIVE HUMIDITY (MEAN %) 73 65 55 57 48 39 34 *** 39 53 58 68 *** RELATIVE HUMIDITY (MAX. %) 89 85 79 80 74 64 56 *** 69 81 79 88 *** RELATIVE HUMIDITY (MIN. %) 52 41 33 36 25 17 20 *** 14 24 34 41 *** RELATIVE HUMIDITY (MEAN% 03UTC) 87 82 73 75 65 57 52 *** 64 75 76 85 *** RELATIVE HUMIDITY (MEAN% 09UTC) 62 48 39 43 29 19 24 *** 18 30 38 50 *** RELATIVE HUMIDITY (MEAN% 15UTC) 66 53 43 45 34 26 26 *** 24 41 53 60 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 29.2 21.3 3.9 43.5 21.1 0.0 0.0 ****** 0.0 1.0 4.0 5.0 ****** DAYS WITH PRECIPITATION >=10 0 1 0 1 1 0 0 **** 0 0 0 0 **** DAYS WITH PRECIPITATION >= 5 1 1 0 3 1 0 0 **** 0 0 0 0 **** DAYS WITH PRECIPITATION >= 1 8 4 2 6 2 0 0 **** 0 1 2 3 **** DAYS WITH PRECIPITATION 9 5 7 10 2 0 0 **** 0 2 4 6 **** GREATEST DAILY PRECIPITATION 9.0 12.0 2.0 20.0 18.0 0.0 0.0 ****** 0.0 1.0 2.0 3.0 ****** DAY 24 20 3 17 7 ** ** ** ** 30 19 24 DAY WITH THUNDER STORM 8 0 3 4 3 0 0 **** 0 1 4 2 **** DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 **** 0 0 0 0 **** DAYS WITH DUST 0 6 12 11 8 14 18 **** 4 6 1 2 **** WIND DIRECTION (PREVAILING) 135 270 180 315 315 315 315 *** 270 180 270 270 *** PREVAILING WIND SPEED(KNOTS) 9.9 5.9 9.6 10.5 11.5 12.4 12.3 **** 5.9 5.8 6.3 6.0 **** PREVAILING WIND PERCENT 17.3 21.4 17.7 22.9 28.6 34.6 45.2 ***** 30.8 18.1 40.4 25.4 ***** CALMS PERCENT OF WIND 16.1 20.5 16.5 14.6 10.9 14.2 2.4 ***** 18.3 23.8 11.3 13.3 ***** NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 **** 240 248 240 248 2672 VECTOR WIND DIRECTION (MEAN) 145 240 126 313 310 303 293 *** 293 225 290 293 *** VECTOR WIND MAGNITUDE(KNOTS) 0.1 0.9 0.7 2.0 3.4 6.6 8.9 **** 3.7 1.3 3.3 1.5 **** WIND STEADINESES (MEAN %) 1.5 14.8 9.6 26.3 42.0 80.5 89.9 ***** 68.5 27.1 55.9 25.9 ***** WIND SPEED (MEAN KNOTS) 6.8 6.1 7.3 7.6 8.1 8.2 9.9 **** 5.4 4.8 5.9 5.8 **** FASTEST WIND DIRECTION 160 150 220 300 360 330 300 *** 330 330 90 360 *** FASTEST WIND SPEED (KNOTS) 35 30 26 24 30 30 24 *** 24 20 20 24 *** DAY 19 8 14 21 6 12 1 ** 11 1 2 16 DAYS WITH SKY CLEAR (0-2)/8 12 11 6 6 20 30 30 **** 29 20 21 15 **** DAYS WITH P.CLOUDY (3-6)/8 15 8 14 12 6 0 1 **** 1 10 5 10 **** DAYS WITH CLOUDY (7-8)/8 4 9 11 12 5 0 0 **** 0 1 4 6 **** DAYS WITH VISIBILITY =< 2 KM 6 6 5 8 0 2 11 **** 1 6 1 4 **** DURATION OF SUNSHINE HOURS 183.1 171.8 178.4 196.9 315.7 349.9 331.7 ****** 312.7 269.0 200.6 163.0 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1015.3 1016.8 1010.6 1010.8 1005.8 1000.5 996.3 ****** 1004.7 1010.0 1016.7 1017.6 ****** MAX. QFE PRESSURE IN HPA 1025.7 1025.4 1020.2 1018.3 1011.9 1005.4 999.6 ****** 1010.7 1017.2 1023.0 1023.1 ****** DAY-HOUR 31- 6 4- 6 25- 6 14- 9 1- 6 4- 6 2- 9 **-** 30- 6 31- 6 25- 6 10- 6 MIN. QFE PRESSURE IN HPA 1003.0 1010.7 998.4 1002.5 998.4 996.9 992.6 ****** 998.5 1003.7 1008.1 1011.4 ****** DAY-HOUR 23- 3 8- 9 20- 3 2- 0 26-15 7-15 18-15 **-** 7-15 20- 0 2-12 31- 0 MEAN QNH PRESSURE IN HPA 1015.8 1017.3 1011.1 1011.2 1006.3 1000.9 996.7 ****** 1005.2 1010.4 1017.1 1018.1 ****** MAX. QNH PRESSURE IN HPA 1026.2 1025.9 1020.7 1018.8 1012.4 1005.9 1000.1 ****** 1011.2 1017.7 1023.5 1023.6 ****** DAY-HOUR 31- 6 4- 6 25- 6 14- 9 1- 6 4- 6 2- 9 **-** 30- 6 31- 6 25- 6 10- 6 MIN. QNH PRESSURE IN HPA 1003.5 1011.2 998.9 1003.0 998.9 997.4 993.1 ****** 999.0 1004.2 1008.6 1011.9 ****** DAY-HOUR 23- 3 8- 9 20- 3 2- 0 26-15 7-15 18-15 **-** 7-15 20- 0 2-12 31- 0 MEAN QFF PRESSURE IN HPA 1016.1 1017.6 1011.4 1011.5 1006.5 1001.2 997.0 ****** 1005.4 1010.7 1017.4 1018.4 ****** MAX. QFF PRESSURE IN HPA 1026.5 1026.2 1021.0 1019.1 1012.7 1006.1 1000.3 ****** 1011.4 1018.0 1023.8 1023.9 ****** DAY-HOUR 31- 6 4- 6 25- 6 14- 9 1- 6 4- 6 2- 9 **-** 30- 6 31- 6 25- 6 10- 6 MIN. QFF PRESSURE IN HPA 1003.8 1011.5 999.2 1003.2 999.1 997.6 993.3 ****** 999.2 1004.4 1008.8 1012.2 ****** DAY-HOUR 23- 3 8- 9 20- 3 2- 0 26-15 7-15 18-15 **-** 7-15 20- 0 2-12 31- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1015.1 1016.7 1010.0 1010.1 1005.2 999.9 995.8 ****** 1004.0 1009.4 1016.4 1017.4 ****** MAX. QFE PRESSURE IN HPA 1023.5 1023.9 1018.1 1016.5 1010.9 1004.0 998.1 ****** 1009.4 1015.2 1021.8 1021.6 ****** DAY 31 4 25 19 17 4 11 ** 30 31 25 10 MIN. QFE PRESSURE IN HPA 1004.0 1011.3 998.8 1002.5 998.8 997.4 993.4 ****** 999.2 1003.7 1009.3 1011.4 ****** DAY 23 19 20 2 27 12 13 ** 8 20 8 31 MEAN QNH PRESSURE IN HPA 1015.6 1017.2 1010.4 1010.6 1005.7 1000.4 996.3 ****** 1004.5 1009.9 1016.9 1017.9 ****** MAX. QNH PRESSURE IN HPA 1024.0 1024.4 1018.6 1017.0 1011.4 1004.5 998.6 ****** 1009.9 1015.7 1022.3 1022.1 ****** DAY 31 4 25 19 17 4 11 ** 30 31 25 10 MIN. QNH PRESSURE IN HPA 1004.5 1011.8 999.3 1003.0 999.3 997.9 993.9 ****** 999.7 1004.2 1009.8 1011.9 ****** DAY 23 19 20 2 27 12 13 ** 8 20 8 31 MEAN QFF PRESSURE IN HPA 1015.9 1017.5 1010.7 1010.8 1006.0 1000.6 996.5 ****** 1004.8 1010.2 1017.2 1018.2 ****** MAX. QFF PRESSURE IN HPA 1024.3 1024.7 1018.9 1017.3 1011.6 1004.7 998.8 ****** 1010.1 1016.0 1022.6 1022.4 ****** DAY 31 4 25 19 17 4 11 ** 30 31 25 10 MIN. QFF PRESSURE IN HPA 1004.8 1012.1 999.5 1003.2 999.5 998.1 994.1 ****** 999.9 1004.4 1010.1 1012.2 ****** DAY 23 19 20 2 27 12 13 ** 8 20 8 31 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1015.1 1016.7 1010.5 1010.7 1005.7 1000.4 996.3 ****** 1004.7 1010.0 1016.6 1017.7 ****** MAX. QFE PRESSURE IN HPA 1024.1 1024.1 1018.7 1017.1 1011.6 1004.3 998.4 ****** 1009.4 1015.3 1021.6 1021.6 ****** DAY 31 4 25 19 17 4 5 ** 29 31 25 10 MIN. QFE PRESSURE IN HPA 1003.0 1011.9 998.4 1005.0 1000.5 996.9 993.8 ****** 999.9 1005.1 1008.3 1012.0 ****** DAY 23 19 20 2 27 14 18 ** 8 20 8 24 MEAN QNH PRESSURE IN HPA 1015.6 1017.2 1011.0 1011.2 1006.2 1000.9 996.8 ****** 1005.2 1010.5 1017.1 1018.2 ****** MAX. QNH PRESSURE IN HPA 1024.6 1024.6 1019.2 1017.6 1012.1 1004.8 998.9 ****** 1009.9 1015.8 1022.1 1022.1 ****** DAY 31 4 25 19 17 4 5 ** 29 31 25 10 MIN. QNH PRESSURE IN HPA 1003.5 1012.4 998.9 1005.5 1001.0 997.4 994.3 ****** 1000.4 1005.6 1008.8 1012.5 ****** DAY 23 19 20 2 27 14 18 ** 8 20 8 24 MEAN QFF PRESSURE IN HPA 1015.9 1017.5 1011.3 1011.4 1006.5 1001.1 997.0 ****** 1005.5 1010.8 1017.4 1018.5 ****** MAX. QFF PRESSURE IN HPA 1024.9 1024.9 1019.5 1017.9 1012.3 1005.0 999.1 ****** 1010.1 1016.1 1022.4 1022.4 ****** DAY 31 4 25 19 17 4 5 ** 29 31 25 10 MIN. QFF PRESSURE IN HPA 1003.8 1012.7 999.2 1005.7 1001.2 997.6 994.5 ****** 1000.6 1005.8 1009.1 1012.8 ****** DAY 23 19 20 2 27 14 18 ** 8 20 8 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1016.5 1018.0 1012.2 1011.9 1007.1 1001.4 997.1 ****** 1005.9 1011.4 1018.1 1019.2 ****** MAX. QFE PRESSURE IN HPA 1025.7 1025.4 1020.2 1018.2 1011.9 1005.4 999.3 ****** 1010.7 1017.2 1023.0 1023.1 ****** DAY 31 4 25 14 1 4 15 ** 30 31 25 10 MIN. QFE PRESSURE IN HPA 1005.6 1013.8 1000.3 1006.5 1002.6 998.3 994.2 ****** 1000.4 1006.9 1009.9 1013.9 ****** DAY 20 19 20 5 31 14 18 ** 7 2 8 31 MEAN QNH PRESSURE IN HPA 1017.0 1018.5 1012.7 1012.4 1007.5 1001.8 997.6 ****** 1006.4 1011.9 1018.6 1019.7 ****** MAX. QNH PRESSURE IN HPA 1026.2 1025.9 1020.7 1018.7 1012.4 1005.9 999.8 ****** 1011.2 1017.7 1023.5 1023.6 ****** DAY 31 4 25 14 1 4 15 ** 30 31 25 10 MIN. QNH PRESSURE IN HPA 1006.1 1014.3 1000.8 1007.0 1003.1 998.8 994.7 ****** 1000.9 1007.4 1010.4 1014.4 ****** DAY 20 19 20 5 31 14 18 ** 7 2 8 31 MEAN QFF PRESSURE IN HPA 1017.3 1018.8 1013.0 1012.7 1007.8 1002.1 997.8 ****** 1006.7 1012.2 1018.9 1020.0 ****** MAX. QFF PRESSURE IN HPA 1026.5 1026.2 1021.0 1019.0 1012.7 1006.1 1000.0 ****** 1011.4 1018.0 1023.8 1023.9 ****** DAY 31 4 25 14 1 4 15 ** 30 31 25 10 MIN. QFF PRESSURE IN HPA 1006.4 1014.6 1001.0 1007.3 1003.3 999.0 994.9 ****** 1001.1 1007.6 1010.7 1014.7 ****** DAY 20 19 20 5 31 14 18 ** 7 2 8 31 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1015.7 1017.4 1011.9 1011.7 1006.9 1001.4 997.1 ****** 1005.5 1010.7 1017.3 1018.1 ****** MAX. QFE PRESSURE IN HPA 1025.1 1025.1 1019.3 1018.3 1011.5 1005.2 999.6 ****** 1010.2 1016.5 1022.3 1021.8 ****** DAY 31 3 25 14 1 3 2 ** 29 31 24 3 MIN. QFE PRESSURE IN HPA 1004.5 1010.7 999.6 1005.7 1002.3 998.5 994.2 ****** 999.7 1005.7 1009.8 1013.4 ****** DAY 24 8 20 12 26 14 18 ** 7 20 8 31 MEAN QNH PRESSURE IN HPA 1016.2 1017.9 1012.4 1012.2 1007.4 1001.9 997.6 ****** 1006.0 1011.2 1017.7 1018.6 ****** MAX. QNH PRESSURE IN HPA 1025.6 1025.6 1019.8 1018.8 1012.0 1005.7 1000.1 ****** 1010.7 1017.0 1022.8 1022.3 ****** DAY 31 3 25 14 1 3 2 ** 29 31 24 3 MIN. QNH PRESSURE IN HPA 1005.0 1011.2 1000.1 1006.2 1002.8 999.0 994.7 ****** 1000.2 1006.2 1010.3 1013.9 ****** DAY 24 8 20 12 26 14 18 ** 7 20 8 31 MEAN QFF PRESSURE IN HPA 1016.5 1018.2 1012.6 1012.5 1007.6 1002.1 997.8 ****** 1006.3 1011.5 1018.0 1018.9 ****** MAX. QFF PRESSURE IN HPA 1025.9 1025.9 1020.1 1019.1 1012.3 1005.9 1000.3 ****** 1010.9 1017.3 1023.1 1022.6 ****** DAY 31 3 25 14 1 3 2 ** 29 31 24 3 MIN. QFF PRESSURE IN HPA 1005.3 1011.5 1000.3 1006.4 1003.0 999.2 994.9 ****** 1000.4 1006.4 1010.6 1014.2 ****** DAY 24 8 20 12 26 14 18 ** 7 20 8 31 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1014.2 1015.8 1009.8 1010.3 1005.6 1000.5 996.2 ****** 1004.2 1009.1 1015.7 1016.5 ****** MAX. QFE PRESSURE IN HPA 1023.6 1023.4 1017.8 1017.0 1010.0 1004.5 999.1 ****** 1008.8 1014.4 1021.2 1020.0 ****** DAY 31 3 25 14 1 3 2 ** 29 31 24 10 MIN. QFE PRESSURE IN HPA 1003.0 1011.0 999.2 1003.5 1000.2 997.6 993.2 ****** 998.7 1004.5 1008.1 1012.3 ****** DAY 24 8 19 12 26 7 18 ** 7 19 2 16 MEAN QNH PRESSURE IN HPA 1014.7 1016.3 1010.3 1010.8 1006.1 1000.9 996.6 ****** 1004.7 1009.6 1016.2 1017.0 ****** MAX. QNH PRESSURE IN HPA 1024.1 1023.9 1018.3 1017.5 1010.5 1005.0 999.6 ****** 1009.3 1014.9 1021.7 1020.5 ****** DAY 31 3 25 14 1 3 2 ** 29 31 24 10 MIN. QNH PRESSURE IN HPA 1003.5 1011.5 999.7 1004.0 1000.7 998.1 993.7 ****** 999.2 1005.0 1008.6 1012.8 ****** DAY 24 8 19 12 26 7 18 ** 7 19 2 16 MEAN QFF PRESSURE IN HPA 1015.0 1016.6 1010.6 1011.0 1006.3 1001.2 996.9 ****** 1004.9 1009.9 1016.5 1017.2 ****** MAX. QFF PRESSURE IN HPA 1024.4 1024.2 1018.6 1017.8 1010.8 1005.2 999.8 ****** 1009.5 1015.2 1022.0 1020.8 ****** DAY 31 3 25 14 1 3 2 ** 29 31 24 10 MIN. QFF PRESSURE IN HPA 1003.8 1011.8 1000.0 1004.2 1000.9 998.3 993.9 ****** 999.4 1005.2 1008.8 1013.1 ****** DAY 24 8 19 12 26 7 18 ** 7 19 2 16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1014.8 1016.1 1009.7 1009.8 1004.9 999.8 995.5 ****** 1004.0 1009.1 1016.0 1016.8 ****** MAX. QFE PRESSURE IN HPA 1023.8 1023.5 1017.4 1017.3 1010.0 1003.9 998.3 ****** 1008.6 1014.4 1021.6 1020.4 ****** DAY 31 3 24 14 16 3 2 ** 29 31 24 28 MIN. QFE PRESSURE IN HPA 1005.6 1011.1 999.5 1003.4 998.4 996.9 992.6 ****** 998.5 1004.3 1009.4 1011.6 ****** DAY 24 13 19 12 26 7 18 ** 7 19 2 26 MEAN QNH PRESSURE IN HPA 1015.3 1016.6 1010.2 1010.3 1005.4 1000.2 996.0 ****** 1004.5 1009.6 1016.5 1017.2 ****** MAX. QNH PRESSURE IN HPA 1024.3 1024.0 1017.9 1017.8 1010.5 1004.4 998.8 ****** 1009.1 1014.9 1022.1 1020.9 ****** DAY 31 3 24 14 16 3 2 ** 29 31 24 28 MIN. QNH PRESSURE IN HPA 1006.1 1011.6 1000.0 1003.9 998.9 997.4 993.1 ****** 999.0 1004.8 1009.9 1012.1 ****** DAY 24 13 19 12 26 7 18 ** 7 19 2 26 MEAN QFF PRESSURE IN HPA 1015.6 1016.9 1010.4 1010.6 1005.7 1000.5 996.3 ****** 1004.7 1009.8 1016.8 1017.5 ****** MAX. QFF PRESSURE IN HPA 1024.6 1024.3 1018.2 1018.1 1010.7 1004.6 999.0 ****** 1009.3 1015.2 1022.4 1021.2 ****** DAY 31 3 24 14 16 3 2 ** 29 31 24 28 MIN. QFF PRESSURE IN HPA 1006.4 1011.9 1000.2 1004.1 999.1 997.6 993.3 ****** 999.2 1005.0 1010.2 1012.4 ****** DAY 24 13 19 12 26 7 18 ** 7 19 2 26 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1015.6 1016.9 1010.6 1010.7 1005.7 1000.4 996.2 ****** 1004.7 1010.0 1016.6 1017.6 ****** MAX. QFE PRESSURE IN HPA 1024.2 1024.7 1018.4 1017.1 1011.4 1004.7 998.9 ****** 1009.3 1015.5 1021.7 1021.4 ****** DAY 31 3 24 14 16 3 2 ** 29 31 24 9 MIN. QFE PRESSURE IN HPA 1007.0 1012.2 1000.8 1003.9 998.9 997.6 993.3 ****** 999.2 1004.6 1010.7 1012.1 ****** DAY 22 18 19 1 26 7 18 ** 7 19 7 30 MEAN QNH PRESSURE IN HPA 1016.1 1017.4 1011.1 1011.2 1006.1 1000.9 996.7 ****** 1005.2 1010.5 1017.1 1018.1 ****** MAX. QNH PRESSURE IN HPA 1024.7 1025.2 1018.9 1017.6 1011.9 1005.2 999.4 ****** 1009.8 1016.0 1022.2 1021.9 ****** DAY 31 3 24 14 16 3 2 ** 29 31 24 9 MIN. QNH PRESSURE IN HPA 1007.5 1012.7 1001.3 1004.4 999.4 998.1 993.8 ****** 999.7 1005.1 1011.2 1012.6 ****** DAY 22 18 19 1 26 7 18 ** 7 19 7 30 MEAN QFF PRESSURE IN HPA 1016.4 1017.7 1011.4 1011.5 1006.4 1001.1 996.9 ****** 1005.4 1010.7 1017.4 1018.4 ****** MAX. QFF PRESSURE IN HPA 1025.0 1025.5 1019.2 1017.9 1012.1 1005.4 999.6 ****** 1010.0 1016.3 1022.5 1022.2 ****** DAY 31 3 24 14 16 3 2 ** 29 31 24 9 MIN. QFF PRESSURE IN HPA 1007.8 1013.0 1001.5 1004.6 999.6 998.3 994.0 ****** 999.9 1005.3 1011.5 1012.9 ****** DAY 22 18 19 1 26 7 18 ** 7 19 7 30 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1015.6 1016.7 1010.4 1010.9 1005.5 1000.2 996.2 ****** 1004.6 1010.0 1016.6 1017.5 ****** MAX. QFE PRESSURE IN HPA 1024.0 1024.3 1018.5 1017.4 1011.3 1004.7 998.7 ****** 1009.5 1015.5 1021.0 1021.5 ****** DAY 31 3 24 14 16 3 5 ** 29 31 24 9 MIN. QFE PRESSURE IN HPA 1005.6 1011.8 1000.4 1003.4 999.3 997.6 993.5 ****** 999.1 1004.0 1009.9 1011.6 ****** DAY 22 13 19 1 26 7 18 ** 7 19 7 30 MEAN QNH PRESSURE IN HPA 1016.1 1017.2 1010.9 1011.4 1006.0 1000.7 996.7 ****** 1005.1 1010.5 1017.0 1018.0 ****** MAX. QNH PRESSURE IN HPA 1024.5 1024.8 1019.0 1017.9 1011.8 1005.2 999.2 ****** 1010.0 1016.0 1021.5 1022.0 ****** DAY 31 3 24 14 16 3 5 ** 29 31 24 9 MIN. QNH PRESSURE IN HPA 1006.1 1012.3 1000.9 1003.9 999.8 998.1 994.0 ****** 999.6 1004.5 1010.4 1012.1 ****** DAY 22 13 19 1 26 7 18 ** 7 19 7 30 MEAN QFF PRESSURE IN HPA 1016.3 1017.5 1011.1 1011.7 1006.2 1001.0 996.9 ****** 1005.3 1010.8 1017.3 1018.3 ****** MAX. QFF PRESSURE IN HPA 1024.8 1025.1 1019.3 1018.2 1012.0 1005.4 999.4 ****** 1010.2 1016.3 1021.8 1022.3 ****** DAY 31 3 24 14 16 3 5 ** 29 31 24 9 MIN. QFF PRESSURE IN HPA 1006.4 1012.6 1001.1 1004.1 1000.0 998.3 994.2 ****** 999.8 1004.7 1010.7 1012.4 ****** DAY 22 13 19 1 26 7 18 ** 7 19 7 30 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 12.6 16.3 19.8 26.8 31.6 35.4 36.3 35.3 31.3 26.1 21.3 12.7 25.4 MINIMUN AIR TEMPERATURE (C) 8.4 10.5 13.4 19.2 23.3 26.9 27.7 26.6 21.9 18.0 14.6 7.6 18.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 10 25 30 31 31 20 6 1 0 154 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) 3.0 6.0 10.0 15.0 18.0 22.0 25.0 23.0 20.0 13.0 10.0 1.0 1.0 DAY 30 4 7 23 8 11 5 18 14 28 25 17 MAXIMUM AIR TEMPERATURE (C) 18.2 23.1 26.6 35.5 40.1 44.0 44.7 44.5 41.6 35.5 29.9 19.2 33.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 3 29 31 30 31 31 30 31 19 0 235 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 27.0 28.0 34.0 42.0 47.0 48.0 48.0 48.0 44.0 42.0 34.0 26.0 48.0 DAY 5 14 31 18 26 15 9 12 29 1 1 6 DIF. BETWEEN (MAX.-MIN.) (C) 9.8 12.6 13.2 16.3 16.8 17.1 17.0 17.9 19.7 17.5 15.3 11.6 15.4 MEAN DAILY TEMP. (MDT) (C) 13.3 16.8 20.0 27.3 31.7 35.4 36.2 35.5 31.7 26.8 22.2 13.4 25.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.5 10.0 190.0 330.5 433.5 472.0 450.5 322.5 179.0 45.0 0.0 2433.5 HEATING DEG. DAYS(BASE 18 0C) 147.0 43.5 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 145.5 337.5 DEWPOINT (MEAN C) 8.0 6.9 8.7 10.8 9.1 8.7 11.0 11.6 10.7 9.9 11.3 5.7 9.4 MIXING RATIO (G/KG) 6.76 6.35 7.21 8.50 7.57 7.31 8.57 8.82 8.31 7.91 8.65 5.82 7.65 VAPOUR PRESSURE (HPA) 10.93 10.27 11.59 13.59 12.08 11.60 13.53 13.93 13.20 12.67 13.91 9.44 12.23 SATURATION DEF. (HPA) 4.02 8.94 12.37 23.40 37.00 48.46 49.31 46.29 35.44 23.26 12.60 5.93 25.58 RELATIVE HUMIDITY (MEAN %) 76 58 53 42 29 22 24 26 32 39 58 65 44 RELATIVE HUMIDITY (MAX. %) 91 81 78 67 50 37 40 41 52 59 80 83 63 RELATIVE HUMIDITY (MIN. %) 54 31 29 19 13 10 12 13 14 21 31 43 24 RELATIVE HUMIDITY (MEAN% 03UTC) 89 78 75 66 45 32 35 37 47 55 74 79 59 RELATIVE HUMIDITY (MEAN% 09UTC) 63 40 35 25 16 12 14 17 18 26 38 52 30 RELATIVE HUMIDITY (MEAN% 15UTC) 67 43 40 29 19 15 17 18 23 31 47 57 34 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 75.4 8.0 19.1 1.8 11.0 0.0 0.0 0.0 0.0 0.0 5.0 29.0 149.3 DAYS WITH PRECIPITATION >=10 3 0 0 0 0 0 0 0 0 0 0 1 4 DAYS WITH PRECIPITATION >= 5 3 0 3 0 1 0 0 0 0 0 1 2 10 DAYS WITH PRECIPITATION >= 1 6 3 4 1 3 0 0 0 0 0 1 6 24 DAYS WITH PRECIPITATION 8 3 5 6 3 0 0 0 0 0 2 6 33 GREATEST DAILY PRECIPITATION 36.0 4.0 6.0 1.0 6.0 0.0 0.0 0.0 0.0 0.0 5.0 15.0 36.0 DAY 11 13 3 20 5 ** ** ** ** ** 29 12 DAY WITH THUNDER STORM 2 2 4 2 1 0 0 0 0 0 2 2 15 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 1 2 4 8 12 17 16 9 6 7 2 0 84 WIND DIRECTION (PREVAILING) 270 315 270 315 315 270 270 270 270 315 315 315 270 PREVAILING WIND SPEED(KNOTS) 5.9 7.9 7.4 8.4 13.1 10.9 9.3 7.8 7.3 10.1 6.5 6.9 7.8 PREVAILING WIND PERCENT 20.6 25.0 33.1 20.4 48.4 47.1 50.0 53.2 40.4 32.3 14.6 22.2 29.3 CALMS PERCENT OF WIND 21.4 31.3 10.5 15.4 10.5 4.6 4.4 13.7 27.5 23.8 51.3 44.4 21.4 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 321 337 281 278 308 295 286 288 290 293 271 308 295 VECTOR WIND MAGNITUDE(KNOTS) 0.9 2.1 1.9 1.6 7.4 10.9 8.2 6.7 5.0 4.9 1.0 1.8 4.3 WIND STEADINESES (MEAN %) 17.0 39.6 23.7 24.2 79.6 92.4 88.2 90.5 87.7 80.3 37.0 47.4 63.2 WIND SPEED (MEAN KNOTS) 5.3 5.3 8.0 6.6 9.3 11.8 9.3 7.4 5.7 6.1 2.7 3.8 6.8 FASTEST WIND DIRECTION 130 100 130 290 330 310 300 340 330 320 150 120 330 FASTEST WIND SPEED (KNOTS) 20 24 25 25 38 35 26 28 32 25 12 20 38 DAY 6 13 19 22 30 7 13 30 3 21 8 11 DAYS WITH SKY CLEAR (0-2)/8 11 18 15 14 27 30 30 31 30 30 12 16 264 DAYS WITH P.CLOUDY (3-6)/8 14 6 11 14 3 0 1 0 0 1 10 12 72 DAYS WITH CLOUDY (7-8)/8 6 4 5 2 1 0 0 0 0 0 8 3 29 DAYS WITH VISIBILITY =< 2 KM 4 2 1 5 2 7 2 1 3 3 7 0 37 DURATION OF SUNSHINE HOURS 171.1 202.6 261.3 250.1 321.8 322.9 335.2 345.8 304.4 302.1 191.5 167.5 3176.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1017.5 1016.1 1012.7 1009.7 1005.6 998.9 996.3 997.2 1002.0 1010.5 1015.5 1019.2 1008.4 MAX. QFE PRESSURE IN HPA 1024.8 1023.3 1020.0 1015.7 1012.3 1003.2 1000.9 1002.2 1010.2 1018.0 1020.5 1028.8 1028.8 DAY-HOUR 3- 6 3- 6 25- 6 21- 6 8- 9 21- 6 26- 6 30- 6 23- 6 29- 6 18- 6 16- 6 MIN. QFE PRESSURE IN HPA 1008.1 1009.1 1004.9 997.6 998.9 994.4 991.9 994.0 996.6 1003.5 1011.5 1009.3 991.9 DAY-HOUR 11-15 22-12 19-12 19- 3 26-15 29-15 17-15 22-15 1-12 5-15 23-12 12- 9 MEAN QNH PRESSURE IN HPA 1018.0 1016.6 1013.2 1010.2 1006.1 999.3 996.8 997.6 1002.5 1011.0 1016.0 1019.6 1008.9 MAX. QNH PRESSURE IN HPA 1025.3 1023.8 1020.5 1016.2 1012.8 1003.7 1001.4 1002.7 1010.7 1018.5 1021.0 1029.3 1029.3 DAY-HOUR 3- 6 3- 6 25- 6 21- 6 8- 9 21- 6 26- 6 30- 6 23- 6 29- 6 18- 6 16- 6 MIN. QNH PRESSURE IN HPA 1008.6 1009.6 1005.4 998.1 999.4 994.9 992.4 994.5 997.1 1004.0 1012.0 1009.8 992.4 DAY-HOUR 11-15 22-12 19-12 19- 3 26-15 29-15 17-15 22-15 1-12 5-15 23-12 12- 9 MEAN QFF PRESSURE IN HPA 1018.3 1016.9 1013.5 1010.4 1006.3 999.6 997.1 997.9 1002.7 1011.3 1016.3 1019.9 1009.2 MAX. QFF PRESSURE IN HPA 1025.6 1024.1 1020.8 1016.5 1013.0 1003.9 1001.6 1002.9 1010.9 1018.8 1021.3 1029.6 1029.6 DAY-HOUR 3- 6 3- 6 25- 6 21- 6 8- 9 21- 6 26- 6 30- 6 23- 6 29- 6 18- 6 16- 6 MIN. QFF PRESSURE IN HPA 1008.9 1009.9 1005.7 998.3 999.6 995.1 992.6 994.7 997.3 1004.2 1012.3 1010.1 992.6 DAY-HOUR 11-15 22-12 19-12 19- 3 26-15 29-15 17-15 22-15 1-12 5-15 23-12 12- 9 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1017.4 1015.8 1012.3 1009.3 1005.2 998.5 995.9 996.7 1001.5 1009.9 1015.2 1018.9 1008.1 MAX. QFE PRESSURE IN HPA 1022.3 1020.6 1018.7 1014.1 1011.0 1001.7 999.3 1000.3 1007.2 1015.9 1018.9 1027.6 1027.6 DAY 3 4 26 21 7 21 27 30 23 30 18 16 MIN. QFE PRESSURE IN HPA 1009.2 1010.7 1005.4 999.5 999.1 995.3 992.2 994.5 997.7 1004.2 1011.7 1012.2 992.2 DAY 22 23 7 19 27 29 17 12 2 6 23 12 MEAN QNH PRESSURE IN HPA 1017.9 1016.3 1012.8 1009.7 1005.7 999.0 996.4 997.2 1002.0 1010.4 1015.7 1019.4 1008.5 MAX. QNH PRESSURE IN HPA 1022.8 1021.1 1019.2 1014.6 1011.5 1002.2 999.8 1000.8 1007.7 1016.4 1019.4 1028.1 1028.1 DAY 3 4 26 21 7 21 27 30 23 30 18 16 MIN. QNH PRESSURE IN HPA 1009.7 1011.2 1005.9 1000.0 999.6 995.8 992.7 995.0 998.2 1004.7 1012.2 1012.7 992.7 DAY 22 23 7 19 27 29 17 12 2 6 23 12 MEAN QFF PRESSURE IN HPA 1018.2 1016.6 1013.1 1010.0 1005.9 999.2 996.6 997.4 1002.2 1010.6 1016.0 1019.7 1008.8 MAX. QFF PRESSURE IN HPA 1023.1 1021.4 1019.5 1014.9 1011.7 1002.4 1000.0 1001.0 1007.9 1016.7 1019.7 1028.4 1028.4 DAY 3 4 26 21 7 21 27 30 23 30 18 16 MIN. QFF PRESSURE IN HPA 1010.0 1011.5 1006.2 1000.2 999.8 996.0 992.9 995.2 998.4 1004.9 1012.5 1013.0 992.9 DAY 22 26 7 19 27 29 17 12 2 6 23 12 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1017.6 1016.2 1012.5 1009.7 1005.7 998.8 996.4 997.2 1002.0 1010.5 1015.6 1019.0 1008.4 MAX. QFE PRESSURE IN HPA 1023.1 1021.1 1018.2 1014.3 1011.0 1002.6 999.9 1000.9 1008.9 1016.0 1018.8 1027.8 1027.8 DAY 3 3 26 21 8 21 26 30 23 28 18 16 MIN. QFE PRESSURE IN HPA 1008.4 1010.0 1006.0 997.6 1000.6 995.1 992.5 995.0 998.0 1004.5 1012.2 1011.3 992.5 DAY 22 22 7 19 26 29 17 12 1 6 23 12 MEAN QNH PRESSURE IN HPA 1018.1 1016.7 1013.0 1010.2 1006.2 999.3 996.9 997.7 1002.5 1010.9 1016.1 1019.5 1008.9 MAX. QNH PRESSURE IN HPA 1023.6 1021.6 1018.7 1014.8 1011.5 1003.1 1000.4 1001.4 1009.4 1016.5 1019.3 1028.3 1028.3 DAY 3 3 26 21 8 21 26 30 23 28 18 16 MIN. QNH PRESSURE IN HPA 1008.9 1010.5 1006.5 998.1 1001.1 995.6 993.0 995.5 998.5 1005.0 1012.7 1011.8 993.0 DAY 22 22 7 19 26 29 17 12 1 6 23 12 MEAN QFF PRESSURE IN HPA 1018.4 1016.9 1013.3 1010.5 1006.4 999.5 997.1 997.9 1002.8 1011.2 1016.4 1019.8 1009.2 MAX. QFF PRESSURE IN HPA 1023.9 1021.9 1019.0 1015.1 1011.8 1003.3 1000.6 1001.6 1009.6 1016.8 1019.6 1028.6 1028.6 DAY 3 3 26 21 8 21 26 30 23 28 18 16 MIN. QFF PRESSURE IN HPA 1009.2 1010.8 1006.8 998.3 1001.3 995.8 993.2 995.7 998.7 1005.2 1013.0 1012.1 993.2 DAY 22 22 7 19 31 29 17 12 1 6 23 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1019.0 1017.7 1014.0 1011.2 1006.9 999.6 997.4 998.4 1003.3 1012.0 1017.2 1020.6 1009.8 MAX. QFE PRESSURE IN HPA 1024.8 1023.3 1020.0 1015.7 1012.1 1003.2 1000.9 1002.2 1010.2 1018.0 1020.5 1028.8 1028.8 DAY 3 3 25 21 8 21 26 30 23 29 18 16 MIN. QFE PRESSURE IN HPA 1009.4 1011.4 1006.1 998.2 1000.9 996.1 993.6 995.8 998.3 1005.7 1014.0 1013.4 993.6 DAY 22 22 19 19 26 29 17 20 1 6 23 12 MEAN QNH PRESSURE IN HPA 1019.5 1018.2 1014.5 1011.7 1007.4 1000.1 997.9 998.9 1003.8 1012.5 1017.7 1021.1 1010.3 MAX. QNH PRESSURE IN HPA 1025.3 1023.8 1020.5 1016.2 1012.6 1003.7 1001.4 1002.7 1010.7 1018.5 1021.0 1029.3 1029.3 DAY 3 3 25 21 8 21 26 30 23 29 18 16 MIN. QNH PRESSURE IN HPA 1009.9 1011.9 1006.6 998.7 1001.4 996.6 994.1 996.3 998.8 1006.2 1014.5 1013.9 994.1 DAY 22 22 19 19 26 29 17 20 1 6 23 12 MEAN QFF PRESSURE IN HPA 1019.8 1018.5 1014.8 1011.9 1007.6 1000.4 998.1 999.1 1004.0 1012.8 1017.9 1021.4 1010.5 MAX. QFF PRESSURE IN HPA 1025.6 1024.1 1020.8 1016.5 1012.9 1003.9 1001.6 1002.9 1010.9 1018.8 1021.3 1029.6 1029.6 DAY 3 3 25 21 8 21 26 30 23 29 18 16 MIN. QFF PRESSURE IN HPA 1010.2 1012.2 1006.9 998.9 1001.6 996.8 994.3 996.5 999.0 1006.4 1014.8 1014.2 994.3 DAY 22 22 19 19 26 29 17 20 1 6 23 12 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1018.1 1016.9 1013.5 1010.5 1006.5 999.6 997.2 998.0 1002.8 1011.2 1016.1 1019.5 1009.2 MAX. QFE PRESSURE IN HPA 1023.1 1022.7 1019.8 1015.5 1012.3 1003.2 1000.8 1001.7 1009.4 1017.6 1019.9 1027.5 1027.5 DAY 3 3 25 21 8 21 26 30 23 31 29 15 MIN. QFE PRESSURE IN HPA 1009.3 1010.5 1005.5 998.9 1000.6 996.2 993.6 995.3 998.3 1005.3 1013.0 1009.3 993.6 DAY 22 22 19 19 26 29 7 20 1 5 23 12 MEAN QNH PRESSURE IN HPA 1018.6 1017.4 1014.0 1011.0 1007.0 1000.0 997.6 998.5 1003.3 1011.7 1016.6 1020.0 1009.6 MAX. QNH PRESSURE IN HPA 1023.6 1023.2 1020.3 1016.0 1012.8 1003.7 1001.3 1002.2 1009.9 1018.1 1020.4 1028.0 1028.0 DAY 3 3 25 21 8 21 26 30 23 31 29 15 MIN. QNH PRESSURE IN HPA 1009.8 1011.0 1006.0 999.4 1001.1 996.7 994.1 995.8 998.8 1005.8 1013.5 1009.8 994.1 DAY 22 22 19 19 26 29 7 20 1 5 23 12 MEAN QFF PRESSURE IN HPA 1018.9 1017.7 1014.3 1011.3 1007.2 1000.3 997.9 998.7 1003.5 1011.9 1016.9 1020.3 1009.9 MAX. QFF PRESSURE IN HPA 1023.9 1023.5 1020.6 1016.3 1013.0 1003.9 1001.5 1002.4 1010.1 1018.4 1020.7 1028.3 1028.3 DAY 3 3 25 21 8 21 26 30 23 31 29 15 MIN. QFF PRESSURE IN HPA 1010.1 1011.3 1006.3 999.6 1001.3 996.9 994.3 996.0 999.0 1006.0 1013.8 1010.1 994.3 DAY 22 22 19 19 26 29 7 20 1 5 23 12 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1016.6 1015.2 1011.8 1008.8 1005.0 998.7 996.1 996.8 1001.3 1009.7 1014.5 1018.1 1007.7 MAX. QFE PRESSURE IN HPA 1021.5 1021.0 1017.9 1013.7 1010.3 1002.5 1000.1 1000.1 1007.1 1016.1 1018.5 1026.8 1026.8 DAY 3 3 25 21 8 21 26 30 23 31 18 15 MIN. QFE PRESSURE IN HPA 1008.4 1009.1 1004.9 1000.4 999.8 995.4 992.1 994.2 996.6 1003.5 1011.5 1009.7 992.1 DAY 22 22 19 18 26 29 7 12 1 23 23 12 MEAN QNH PRESSURE IN HPA 1017.1 1015.7 1012.3 1009.3 1005.5 999.1 996.6 997.3 1001.7 1010.2 1015.0 1018.6 1008.2 MAX. QNH PRESSURE IN HPA 1022.0 1021.5 1018.4 1014.2 1010.8 1003.0 1000.6 1000.6 1007.6 1016.6 1019.0 1027.3 1027.3 DAY 3 3 25 21 8 21 26 30 23 31 18 15 MIN. QNH PRESSURE IN HPA 1008.9 1009.6 1005.4 1000.9 1000.3 995.9 992.6 994.7 997.1 1004.0 1012.0 1010.2 992.6 DAY 22 22 19 18 26 29 7 12 1 23 23 12 MEAN QFF PRESSURE IN HPA 1017.4 1016.0 1012.6 1009.6 1005.8 999.4 996.8 997.5 1002.0 1010.5 1015.3 1018.9 1008.5 MAX. QFF PRESSURE IN HPA 1022.3 1021.8 1018.7 1014.5 1011.0 1003.2 1000.8 1000.8 1007.8 1016.9 1019.3 1027.6 1027.6 DAY 3 3 25 21 8 21 26 30 23 31 18 15 MIN. QFF PRESSURE IN HPA 1009.2 1009.9 1005.7 1001.1 1000.5 996.1 992.8 994.9 997.3 1004.2 1012.3 1010.5 992.8 DAY 22 22 19 18 26 29 7 12 1 23 23 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1016.9 1015.2 1011.8 1008.7 1004.6 998.2 995.4 996.3 1001.1 1009.8 1014.7 1018.5 1007.6 MAX. QFE PRESSURE IN HPA 1021.5 1020.3 1017.5 1013.5 1010.1 1001.6 998.9 999.9 1006.8 1016.2 1018.5 1027.6 1027.6 DAY 3 3 25 21 12 21 26 30 23 29 18 15 MIN. QFE PRESSURE IN HPA 1008.1 1009.7 1005.7 999.5 998.9 994.4 991.9 994.0 996.8 1003.5 1011.5 1011.0 991.9 DAY 11 22 6 18 26 29 17 22 1 5 27 12 MEAN QNH PRESSURE IN HPA 1017.4 1015.7 1012.3 1009.2 1005.1 998.6 995.9 996.8 1001.6 1010.3 1015.2 1019.0 1008.1 MAX. QNH PRESSURE IN HPA 1022.0 1020.8 1018.0 1014.0 1010.6 1002.1 999.4 1000.4 1007.3 1016.7 1019.0 1028.1 1028.1 DAY 3 3 25 21 12 21 26 30 23 29 18 15 MIN. QNH PRESSURE IN HPA 1008.6 1010.2 1006.2 1000.0 999.4 994.9 992.4 994.5 997.3 1004.0 1012.0 1011.5 992.4 DAY 11 22 6 18 26 29 17 22 1 5 27 12 MEAN QFF PRESSURE IN HPA 1017.7 1016.0 1012.6 1009.5 1005.3 998.9 996.1 997.0 1001.9 1010.6 1015.5 1019.3 1008.4 MAX. QFF PRESSURE IN HPA 1022.3 1021.1 1018.3 1014.3 1010.8 1002.3 999.6 1000.6 1007.5 1017.0 1019.3 1028.4 1028.4 DAY 3 3 25 21 12 21 26 30 23 29 18 15 MIN. QFF PRESSURE IN HPA 1008.9 1010.5 1006.5 1000.2 999.6 995.1 992.6 994.7 997.5 1004.2 1012.3 1011.8 992.6 DAY 11 22 6 18 26 29 17 22 1 5 27 12 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1017.5 1015.9 1012.9 1009.7 1005.4 998.8 996.1 997.0 1002.1 1010.8 1015.5 1019.4 1008.4 MAX. QFE PRESSURE IN HPA 1022.1 1020.8 1018.6 1015.0 1011.2 1001.8 999.9 1000.8 1007.9 1016.8 1019.2 1028.1 1028.1 DAY 2 3 25 21 7 21 26 30 22 29 18 15 MIN. QFE PRESSURE IN HPA 1009.0 1010.1 1006.0 1000.2 999.0 995.4 992.6 994.7 997.9 1004.3 1012.0 1012.6 992.6 DAY 21 18 6 18 26 29 6 11 1 23 27 11 MEAN QNH PRESSURE IN HPA 1018.0 1016.4 1013.4 1010.2 1005.9 999.3 996.6 997.5 1002.6 1011.3 1016.0 1019.9 1008.9 MAX. QNH PRESSURE IN HPA 1022.6 1021.3 1019.1 1015.5 1011.7 1002.3 1000.4 1001.3 1008.4 1017.3 1019.7 1028.6 1028.6 DAY 2 3 25 21 7 21 26 30 22 29 18 15 MIN. QNH PRESSURE IN HPA 1009.5 1010.6 1006.5 1000.7 999.5 995.9 993.1 995.2 998.4 1004.8 1012.5 1013.1 993.1 DAY 21 18 6 18 26 29 6 11 1 23 27 11 MEAN QFF PRESSURE IN HPA 1018.3 1016.7 1013.7 1010.4 1006.1 999.5 996.9 997.7 1002.9 1011.5 1016.3 1020.2 1009.2 MAX. QFF PRESSURE IN HPA 1022.9 1021.6 1019.4 1015.8 1011.9 1002.5 1000.6 1001.5 1008.6 1017.6 1020.0 1028.9 1028.9 DAY 2 3 25 21 7 21 26 30 22 31 18 15 MIN. QFF PRESSURE IN HPA 1009.8 1010.9 1006.8 1000.9 999.7 996.1 993.3 995.4 998.6 1005.1 1012.8 1013.4 993.3 DAY 21 18 6 18 26 29 6 11 1 23 27 11 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1017.4 1015.9 1012.9 1009.8 1005.5 998.9 996.4 997.1 1002.1 1010.6 1015.3 1019.4 1008.4 MAX. QFE PRESSURE IN HPA 1022.0 1020.9 1018.9 1014.3 1011.4 1002.1 999.6 1000.8 1007.5 1016.7 1019.1 1027.7 1027.7 DAY 3 3 25 20 7 20 26 30 22 29 29 15 MIN. QFE PRESSURE IN HPA 1009.2 1010.4 1005.6 999.8 999.3 995.6 993.0 994.8 998.0 1004.8 1011.8 1011.0 993.0 DAY 11 18 6 18 26 28 16 11 1 5 27 12 MEAN QNH PRESSURE IN HPA 1017.8 1016.4 1013.4 1010.3 1006.0 999.4 996.8 997.6 1002.6 1011.1 1015.8 1019.9 1008.9 MAX. QNH PRESSURE IN HPA 1022.5 1021.4 1019.4 1014.8 1011.9 1002.6 1000.1 1001.3 1008.0 1017.2 1019.6 1028.2 1028.2 DAY 3 3 25 20 7 20 26 30 22 29 29 15 MIN. QNH PRESSURE IN HPA 1009.7 1010.9 1006.1 1000.3 999.8 996.1 993.5 995.3 998.5 1005.3 1012.3 1011.5 993.5 DAY 11 18 6 18 26 28 16 11 1 5 27 12 MEAN QFF PRESSURE IN HPA 1018.1 1016.7 1013.7 1010.6 1006.2 999.6 997.1 997.8 1002.8 1011.4 1016.1 1020.2 1009.2 MAX. QFF PRESSURE IN HPA 1022.8 1021.7 1019.7 1015.1 1012.1 1002.8 1000.3 1001.5 1008.2 1017.5 1019.9 1028.5 1028.5 DAY 3 3 25 20 7 20 26 30 22 29 29 15 MIN. QFF PRESSURE IN HPA 1010.0 1011.2 1006.4 1000.5 1000.0 996.3 993.7 995.5 998.7 1005.5 1012.5 1011.8 993.7 DAY 11 18 6 18 26 28 16 11 1 5 27 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 12.8 14.4 19.8 23.4 32.9 33.6 36.3 35.4 32.3 25.5 19.8 12.6 24.9 MINIMUN AIR TEMPERATURE (C) 7.4 8.4 13.4 17.3 25.2 25.9 28.2 27.2 23.2 17.5 14.7 7.7 18.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 3 30 30 31 31 23 4 1 1 154 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 2 0 0 0 0 0 0 0 0 0 1 3 TEMPERATURE RECORDS LOWEST(C) 2.0 0.0 6.0 10.0 20.0 22.0 25.0 22.0 18.0 13.0 9.0 0.0 0.0 DAY 21 15 16 3 1 4 10 31 26 19 13 23 MAXIMUM AIR TEMPERATURE (C) 20.2 21.4 26.9 29.9 40.5 41.1 44.1 43.8 42.7 35.4 26.4 19.1 32.6 DAYS WITH MAXIMUM TEMP. >=30 0 2 4 14 31 30 31 31 30 31 6 0 210 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 25.0 30.0 32.0 38.0 44.0 44.0 48.0 48.0 46.0 39.0 34.0 26.0 48.0 DAY 9 21 18 30 19 16 12 22 2 6 2 8 DIF. BETWEEN (MAX.-MIN.) (C) 12.8 13.0 13.5 12.6 15.3 15.2 15.9 16.6 19.5 17.9 11.7 11.4 14.6 MEAN DAILY TEMP. (MDT) (C) 13.8 14.9 20.2 23.6 32.9 33.5 36.1 35.5 32.9 26.4 20.6 13.4 25.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 1.0 14.5 82.0 367.5 375.5 469.5 449.0 357.5 168.0 32.5 1.5 2318.5 HEATING DEG. DAYS(BASE 18 0C) 131.0 96.5 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.5 152.5 389.5 DEWPOINT (MEAN C) 5.6 4.9 5.2 9.3 10.8 10.4 12.8 12.4 12.4 8.7 11.5 4.9 9.1 MIXING RATIO (G/KG) 5.76 5.59 5.80 7.67 8.39 8.28 9.50 9.70 9.51 7.34 8.70 5.62 7.65 VAPOUR PRESSURE (HPA) 9.33 9.03 9.36 12.28 13.36 13.11 14.97 15.28 15.09 11.79 14.01 9.09 12.22 SATURATION DEF. (HPA) 6.04 8.42 14.63 17.70 38.70 40.98 47.68 44.76 36.40 22.89 9.98 6.40 24.55 RELATIVE HUMIDITY (MEAN %) 64 57 43 46 29 27 26 29 35 39 63 62 43 RELATIVE HUMIDITY (MAX. %) 83 79 67 71 48 45 42 49 60 64 81 80 64 RELATIVE HUMIDITY (MIN. %) 41 32 20 25 13 13 14 13 14 17 40 39 23 RELATIVE HUMIDITY (MEAN% 03UTC) 79 77 64 67 44 42 40 43 54 59 75 76 60 RELATIVE HUMIDITY (MEAN% 09UTC) 51 41 28 30 17 16 17 17 19 22 46 49 29 RELATIVE HUMIDITY (MEAN% 15UTC) 55 42 30 31 18 18 19 20 24 27 55 57 33 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 7.0 24.5 6.0 27.6 1.0 0.0 0.0 0.0 0.0 0.0 23.5 24.9 114.5 DAYS WITH PRECIPITATION >=10 0 1 0 1 0 0 0 0 0 0 0 1 3 DAYS WITH PRECIPITATION >= 5 1 2 0 1 0 0 0 0 0 0 2 2 8 DAYS WITH PRECIPITATION >= 1 3 3 4 3 1 0 0 0 0 0 6 8 28 DAYS WITH PRECIPITATION 4 4 6 8 1 0 0 0 0 1 7 9 40 GREATEST DAILY PRECIPITATION 5.0 14.0 3.0 23.0 1.0 0.0 0.0 0.0 0.0 0.0 7.0 10.0 23.0 DAY 22 13 28 13 8 ** ** ** ** ** 21 24 DAY WITH THUNDER STORM 0 0 2 2 1 0 0 0 0 0 1 0 6 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 4 8 7 13 16 21 22 14 8 6 2 4 125 WIND DIRECTION (PREVAILING) 270 315 315 315 315 270 270 270 315 270 315 315 270 PREVAILING WIND SPEED(KNOTS) 6.6 7.0 8.7 10.8 8.7 9.2 9.2 9.3 9.7 7.6 7.7 10.2 8.2 PREVAILING WIND PERCENT 23.0 19.2 17.3 20.0 26.6 47.9 46.4 38.7 24.6 28.2 18.3 30.2 25.4 CALMS PERCENT OF WIND 40.3 31.7 23.4 20.8 21.4 9.2 18.5 11.3 12.1 20.2 32.9 7.3 20.7 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 307 254 258 308 309 293 290 293 277 285 300 286 291 VECTOR WIND MAGNITUDE(KNOTS) 1.9 1.2 0.8 1.1 3.4 8.5 7.6 7.1 3.9 3.0 1.5 3.1 3.5 WIND STEADINESES (MEAN %) 40.4 22.6 12.1 14.9 56.7 89.5 91.6 80.7 56.5 47.6 29.4 33.3 50.0 WIND SPEED (MEAN KNOTS) 4.7 5.3 6.6 7.4 6.0 9.5 8.3 8.8 6.9 6.3 5.1 9.3 7.0 FASTEST WIND DIRECTION 20 270 150 150 330 300 330 330 340 360 40 160 20 FASTEST WIND SPEED (KNOTS) 30 26 22 26 22 30 24 24 20 20 25 28 30 DAY 27 27 11 12 21 23 21 6 4 26 27 7 DAYS WITH SKY CLEAR (0-2)/8 21 20 11 16 17 30 30 31 30 30 15 17 268 DAYS WITH P.CLOUDY (3-6)/8 6 5 16 10 10 0 1 0 0 1 9 8 66 DAYS WITH CLOUDY (7-8)/8 4 3 4 4 4 0 0 0 0 0 6 6 31 DAYS WITH VISIBILITY =< 2 KM 3 3 4 6 5 10 9 6 4 4 1 2 57 DURATION OF SUNSHINE HOURS 189.9 201.4 190.4 226.9 236.6 278.7 278.9 293.8 292.9 282.9 159.7 158.2 2790.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1017.9 1014.5 1014.3 1009.5 1004.2 998.4 995.9 997.7 1004.1 1012.0 1016.4 1017.9 1008.6 MAX. QFE PRESSURE IN HPA 1027.1 1026.8 1024.8 1017.5 1010.9 1004.2 1000.9 1003.9 1011.6 1018.0 1024.7 1027.9 1027.9 DAY-HOUR 1- 0 16- 6 16- 6 3- 6 4- 6 2- 6 6- 9 24- 6 23- 6 31- 6 20- 6 31- 6 MIN. QFE PRESSURE IN HPA 1010.6 999.9 1004.8 999.2 998.8 994.1 991.8 992.8 998.7 1005.9 1008.3 1009.6 991.8 DAY-HOUR 13-12 13- 9 14-12 24-12 28-15 24-15 12-15 9-15 1- 0 1- 0 7- 6 27-12 MEAN QNH PRESSURE IN HPA 1018.4 1015.0 1014.7 1010.0 1004.7 998.9 996.4 998.1 1004.6 1012.4 1016.9 1018.3 1009.0 MAX. QNH PRESSURE IN HPA 1027.6 1027.3 1025.3 1018.0 1011.4 1004.7 1001.4 1004.4 1012.1 1018.5 1025.2 1028.4 1028.4 DAY-HOUR 1- 0 16- 6 16- 6 3- 6 4- 6 2- 6 6- 9 24- 6 23- 6 31- 6 20- 6 31- 6 MIN. QNH PRESSURE IN HPA 1011.1 1000.4 1005.3 999.7 999.3 994.6 992.3 993.3 999.2 1006.4 1008.8 1010.1 992.3 DAY-HOUR 13-12 13- 9 14-12 24-12 28-15 24-15 12-15 9-15 1- 0 1- 0 7- 6 27-12 MEAN QFF PRESSURE IN HPA 1018.7 1015.3 1015.0 1010.2 1004.9 999.1 996.6 998.4 1004.8 1012.7 1017.2 1018.6 1009.3 MAX. QFF PRESSURE IN HPA 1027.9 1027.6 1025.6 1018.3 1011.6 1004.9 1001.6 1004.6 1012.3 1018.8 1025.5 1028.7 1028.7 DAY-HOUR 1- 0 16- 6 16- 6 3- 6 4- 6 2- 6 6- 9 24- 6 23- 6 31- 6 20- 6 31- 6 MIN. QFF PRESSURE IN HPA 1011.4 1000.7 1005.6 999.9 999.5 994.8 992.5 993.5 999.4 1006.6 1009.0 1010.4 992.5 DAY-HOUR 13-12 13- 9 14-12 24-12 28-15 24-15 12-15 9-15 1- 0 1- 0 7- 6 27-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1018.2 1014.4 1013.9 1009.4 1003.8 998.0 995.5 997.1 1003.6 1011.4 1016.1 1017.6 1008.3 MAX. QFE PRESSURE IN HPA 1027.1 1024.6 1023.1 1016.5 1008.1 1002.6 998.8 1001.5 1009.2 1016.6 1023.6 1026.3 1027.1 DAY 1 16 16 20 4 3 7 24 23 31 20 31 MIN. QFE PRESSURE IN HPA 1012.1 1001.7 1008.2 1001.9 999.5 994.5 992.4 993.5 998.7 1005.9 1009.7 1009.7 992.4 DAY 13 13 20 13 26 25 13 9 1 1 7 7 MEAN QNH PRESSURE IN HPA 1018.7 1014.9 1014.4 1009.9 1004.3 998.5 996.0 997.6 1004.1 1011.9 1016.6 1018.1 1008.7 MAX. QNH PRESSURE IN HPA 1027.6 1025.1 1023.6 1017.0 1008.6 1003.1 999.3 1002.0 1009.7 1017.1 1024.1 1026.8 1027.6 DAY 1 16 16 20 4 3 7 24 23 31 20 31 MIN. QNH PRESSURE IN HPA 1012.6 1002.2 1008.7 1002.4 1000.0 995.0 992.9 994.0 999.2 1006.4 1010.2 1010.2 992.9 DAY 13 13 20 13 26 25 13 9 1 1 7 7 MEAN QFF PRESSURE IN HPA 1019.0 1015.2 1014.7 1010.1 1004.5 998.8 996.3 997.9 1004.3 1012.1 1016.8 1018.4 1009.0 MAX. QFF PRESSURE IN HPA 1027.9 1025.4 1023.9 1017.3 1008.8 1003.3 999.5 1002.2 1009.9 1017.4 1024.4 1027.1 1027.9 DAY 1 16 16 20 4 3 7 24 23 31 20 31 MIN. QFF PRESSURE IN HPA 1012.9 1002.5 1009.0 1002.7 1000.2 995.2 993.1 994.2 999.4 1006.6 1010.4 1010.5 993.1 DAY 13 13 20 13 26 25 13 9 1 1 7 7 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1017.9 1014.5 1014.3 1009.5 1004.4 998.3 996.0 997.6 1004.1 1011.9 1016.4 1017.7 1008.5 MAX. QFE PRESSURE IN HPA 1026.0 1025.4 1023.7 1016.7 1009.3 1003.6 999.2 1003.3 1009.7 1016.6 1024.6 1025.5 1026.0 DAY 1 16 16 20 4 2 6 24 23 31 20 31 MIN. QFE PRESSURE IN HPA 1010.9 1001.8 1008.0 1001.5 1000.7 995.1 993.8 993.5 999.2 1006.3 1008.4 1010.1 993.5 DAY 13 13 20 24 26 25 13 9 1 1 7 7 MEAN QNH PRESSURE IN HPA 1018.4 1015.0 1014.8 1010.0 1004.9 998.8 996.4 998.0 1004.6 1012.4 1016.9 1018.2 1009.0 MAX. QNH PRESSURE IN HPA 1026.5 1025.9 1024.2 1017.2 1009.8 1004.1 999.7 1003.8 1010.2 1017.1 1025.1 1026.0 1026.5 DAY 1 16 16 20 4 2 6 24 23 31 20 31 MIN. QNH PRESSURE IN HPA 1011.4 1002.3 1008.5 1002.0 1001.2 995.6 994.3 994.0 999.7 1006.8 1008.9 1010.6 994.0 DAY 13 13 20 24 26 25 13 9 1 1 7 7 MEAN QFF PRESSURE IN HPA 1018.7 1015.3 1015.1 1010.2 1005.2 999.1 996.7 998.3 1004.8 1012.7 1017.2 1018.5 1009.3 MAX. QFF PRESSURE IN HPA 1026.8 1026.2 1024.5 1017.5 1010.0 1004.3 999.9 1004.0 1010.4 1017.4 1025.4 1026.3 1026.8 DAY 1 16 16 20 4 2 7 24 23 31 20 31 MIN. QFF PRESSURE IN HPA 1011.7 1002.6 1008.8 1002.2 1001.4 995.8 994.5 994.2 999.9 1007.0 1009.1 1010.9 994.2 DAY 13 13 20 24 26 25 13 9 1 1 7 7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1019.4 1015.8 1015.8 1010.9 1005.7 999.3 996.9 998.7 1005.4 1013.5 1017.8 1019.2 1009.9 MAX. QFE PRESSURE IN HPA 1026.9 1026.8 1024.8 1017.5 1010.9 1004.2 1000.7 1003.9 1011.6 1018.0 1024.7 1027.9 1027.9 DAY 1 16 16 3 4 2 6 24 23 31 20 31 MIN. QFE PRESSURE IN HPA 1012.5 1001.1 1007.3 1002.2 1001.6 995.8 993.7 994.3 1001.1 1007.5 1008.3 1011.6 993.7 DAY 13 13 14 24 29 24 12 9 1 1 7 7 MEAN QNH PRESSURE IN HPA 1019.9 1016.3 1016.3 1011.4 1006.2 999.8 997.4 999.2 1005.9 1014.0 1018.3 1019.7 1010.4 MAX. QNH PRESSURE IN HPA 1027.4 1027.3 1025.3 1018.0 1011.4 1004.7 1001.2 1004.4 1012.1 1018.5 1025.2 1028.4 1028.4 DAY 1 16 16 3 4 2 6 24 23 31 20 31 MIN. QNH PRESSURE IN HPA 1013.0 1001.6 1007.8 1002.7 1002.1 996.3 994.2 994.8 1001.6 1008.0 1008.8 1012.1 994.2 DAY 13 13 14 24 29 24 12 9 1 1 7 7 MEAN QFF PRESSURE IN HPA 1020.2 1016.6 1016.6 1011.6 1006.4 1000.0 997.6 999.5 1006.2 1014.2 1018.6 1020.0 1010.6 MAX. QFF PRESSURE IN HPA 1027.7 1027.6 1025.6 1018.3 1011.6 1004.9 1001.4 1004.6 1012.3 1018.8 1025.5 1028.7 1028.7 DAY 1 16 16 3 4 2 6 24 23 31 20 31 MIN. QFF PRESSURE IN HPA 1013.3 1001.9 1008.1 1002.9 1002.3 996.5 994.4 995.0 1001.8 1008.2 1009.0 1012.4 994.4 DAY 13 13 14 24 29 24 12 9 1 1 7 7 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1018.2 1015.2 1015.4 1010.4 1005.2 999.2 996.7 998.5 1004.9 1012.7 1017.2 1018.3 1009.3 MAX. QFE PRESSURE IN HPA 1025.2 1025.9 1024.4 1016.4 1010.0 1003.8 1000.9 1003.7 1010.7 1017.0 1024.0 1027.3 1027.3 DAY 1 16 16 20 4 2 6 24 23 31 20 31 MIN. QFE PRESSURE IN HPA 1011.3 999.9 1008.5 1001.4 1000.0 995.8 993.7 994.0 1001.0 1007.5 1010.8 1011.7 993.7 DAY 13 13 14 24 28 24 12 9 3 1 7 27 MEAN QNH PRESSURE IN HPA 1018.7 1015.7 1015.9 1010.9 1005.6 999.6 997.2 999.0 1005.4 1013.2 1017.6 1018.8 1009.8 MAX. QNH PRESSURE IN HPA 1025.7 1026.4 1024.9 1016.9 1010.5 1004.3 1001.4 1004.2 1011.2 1017.5 1024.5 1027.8 1027.8 DAY 1 16 16 20 4 2 6 24 23 31 20 31 MIN. QNH PRESSURE IN HPA 1011.8 1000.4 1009.0 1001.9 1000.5 996.3 994.2 994.5 1001.5 1008.0 1011.3 1012.2 994.2 DAY 13 13 14 24 28 24 12 9 3 1 7 27 MEAN QFF PRESSURE IN HPA 1019.0 1016.0 1016.1 1011.1 1005.9 999.9 997.4 999.2 1005.7 1013.5 1017.9 1019.1 1010.1 MAX. QFF PRESSURE IN HPA 1026.0 1026.7 1025.2 1017.2 1010.7 1004.5 1001.6 1004.4 1011.4 1017.8 1024.8 1028.1 1028.1 DAY 1 16 16 20 4 2 6 24 23 31 20 31 MIN. QFF PRESSURE IN HPA 1012.1 1000.7 1009.3 1002.1 1000.7 996.5 994.4 994.7 1001.7 1008.2 1011.6 1012.5 994.4 DAY 13 13 14 24 28 24 12 9 3 1 7 27 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1016.6 1013.5 1013.4 1008.6 1003.7 998.2 995.6 997.3 1003.3 1011.1 1015.4 1016.7 1007.8 MAX. QFE PRESSURE IN HPA 1023.0 1024.8 1021.2 1014.9 1008.0 1002.7 999.6 1001.7 1008.5 1015.4 1022.9 1025.7 1025.7 DAY 1 16 16 19 4 2 6 24 23 31 20 31 MIN. QFE PRESSURE IN HPA 1010.6 1001.0 1004.8 999.2 999.8 994.8 992.3 993.2 999.8 1006.1 1009.9 1009.6 992.3 DAY 13 13 14 24 27 24 12 9 5 1 7 27 MEAN QNH PRESSURE IN HPA 1017.1 1014.0 1013.8 1009.1 1004.2 998.6 996.1 997.8 1003.8 1011.5 1015.9 1017.2 1008.3 MAX. QNH PRESSURE IN HPA 1023.5 1025.3 1021.7 1015.4 1008.5 1003.2 1000.1 1002.2 1009.0 1015.9 1023.4 1026.2 1026.2 DAY 1 16 16 19 4 2 6 24 23 31 20 31 MIN. QNH PRESSURE IN HPA 1011.1 1001.5 1005.3 999.7 1000.3 995.3 992.8 993.7 1000.3 1006.6 1010.4 1010.1 992.8 DAY 13 13 14 24 27 24 12 9 5 1 7 27 MEAN QFF PRESSURE IN HPA 1017.4 1014.3 1014.1 1009.4 1004.4 998.9 996.3 998.1 1004.1 1011.8 1016.2 1017.5 1008.5 MAX. QFF PRESSURE IN HPA 1023.8 1025.6 1022.0 1015.