STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** 35.8 37.4 39.7 38.1 35.2 27.9 21.8 15.0 ***** MINIMUN AIR TEMPERATURE (C) ***** ***** ***** ***** 24.9 26.5 29.0 28.0 25.0 19.7 12.9 8.5 ***** DAYS WITH MINIMUM TEMP. >=21 **** **** **** **** 30 30 31 31 30 14 0 0 **** DAYS WITH MINIMUM TEMP. <=-4 **** **** **** **** 0 0 0 0 0 0 0 0 **** DAYS WITH FREEZING MIN.<= 0 **** **** **** **** 0 0 0 0 0 0 0 0 **** TEMPERATURE RECORDS LOWEST(C) ***** ***** ***** ***** 20.0 22.0 25.0 22.6 21.2 13.4 7.4 2.4 ***** DAY ** ** ** ** 7 6 10 28 30 28 11 30 MAXIMUM AIR TEMPERATURE (C) ***** ***** ***** ***** 40.9 43.5 45.7 44.3 41.5 32.8 27.8 19.4 ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** **** **** 31 30 31 31 30 26 11 0 **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** **** **** 0 0 0 0 0 0 0 0 **** TEMPERATURE RECORDS HIGHEST(C)***** ***** ***** ***** 43.4 47.8 48.2 48.8 44.8 39.8 32.4 25.0 ***** DAY ** ** ** ** 14 29 24 13 6 2 15 2 DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** ***** ***** 16.0 17.0 16.7 16.3 16.5 13.1 14.9 10.9 ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** ***** ***** 32.9 35.0 37.3 36.2 33.3 26.3 20.3 14.0 ***** COOLING DEG. DAYS(BASE 21 0C)****** ****** ****** ****** 368.9 419.7 506.8 470.3 367.7 166.5 28.3 0.0 ****** HEATING DEG. DAYS(BASE 18 0C)****** ****** ****** ****** 0.0 0.0 0.0 0.0 0.0 0.0 12.0 126.1 ****** DEWPOINT (MEAN C) ***** ***** ***** ***** 10.1 8.1 9.0 12.9 12.6 10.9 7.7 7.8 ***** MIXING RATIO (G/KG) ****** ****** ****** ****** 8.15 7.37 7.64 10.08 9.90 8.73 6.84 6.94 ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** 12.81 11.52 11.92 15.65 15.45 13.78 10.87 11.05 ****** SATURATION DEF. (HPA) ****** ****** ****** ****** 47.46 55.67 63.69 54.13 43.70 25.47 16.44 6.66 ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** 23 20 18 25 28 39 44 67 *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** 37 35 32 40 41 54 64 83 *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** 14 10 10 17 18 28 28 52 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** 37 34 32 39 40 50 62 77 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** 19 16 13 20 23 33 34 57 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** 19 14 13 20 27 40 46 71 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. ****** ****** ****** ****** 0.0 0.0 2.8 3.0 0.0 17.6 0.9 122.2 ****** DAYS WITH PRECIPITATION >=10 **** **** **** **** 0 0 0 0 0 1 0 6 **** DAYS WITH PRECIPITATION >= 5 **** **** **** **** 0 0 0 0 0 2 0 6 **** DAYS WITH PRECIPITATION >= 1 **** **** **** **** 0 0 1 1 0 2 0 6 **** DAYS WITH PRECIPITATION **** **** **** **** 0 0 2 1 0 8 1 10 **** GREATEST DAILY PRECIPITATION ****** ****** ****** ****** 0.0 0.0 2.0 3.0 0.0 10.0 0.9 43.4 ****** DAY ** ** ** ** ** ** 28 1 ** 30 3 28 DAY WITH THUNDER STORM **** **** **** **** 0 0 1 0 0 2 0 4 **** DAYS WITH SNOW OR SLEET **** **** **** **** 0 0 0 0 0 0 0 0 **** DAYS WITH DUST **** **** **** **** 8 19 12 10 20 15 2 0 **** WIND DIRECTION (PREVAILING) *** *** *** *** 270 270 270 270 270 135 270 270 *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** 7.1 7.5 7.5 6.7 7.8 5.9 6.3 7.5 **** PREVAILING WIND PERCENT ***** ***** ***** ***** 18.1 22.7 22.6 15.5 16.7 9.0 14.7 10.3 ***** CALMS PERCENT OF WIND ***** ***** ***** ***** 50.3 40.7 45.8 54.2 47.3 57.4 54.0 61.3 ***** NO. OF WIND OBSERVATION **** **** **** **** 155 150 155 155 150 155 150 155 1225 VECTOR WIND DIRECTION (MEAN) *** *** *** *** 287 274 254 250 257 223 287 269 *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** 2.8 3.3 2.2 1.7 2.1 0.3 1.1 0.5 **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** 73.7 67.3 57.9 58.6 58.3 10.0 37.9 16.1 ***** WIND SPEED (MEAN KNOTS) **** **** **** **** 3.8 4.9 3.8 2.9 3.6 3.0 2.9 3.1 **** FASTEST WIND DIRECTION *** *** *** *** 300 300 270 290 300 360 40 150 *** FASTEST WIND SPEED (KNOTS) *** *** *** *** 23 23 23 16 19 17 17 27 *** DAY ** ** ** ** 30 4 2 18 7 19 2 13 DAYS WITH SKY CLEAR (0-2)/8 **** **** **** **** 20 29 27 24 30 15 23 9 **** DAYS WITH P.CLOUDY (3-6)/8 **** **** **** **** 10 1 3 7 0 8 5 15 **** DAYS WITH CLOUDY (7-8)/8 **** **** **** **** 1 0 1 0 0 8 2 7 **** DAYS WITH VISIBILITY =< 2 KM **** **** **** **** 0 0 0 0 1 0 0 2 **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** 171.0 294.6 307.2 334.6 299.6 190.2 249.3 173.9 ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 991.2 985.6 982.6 983.4 989.3 996.3 1000.2 1003.6 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 999.0 990.5 987.6 988.7 997.0 1005.0 1005.3 1010.0 ****** DAY-HOUR **-** **-** **-** **-** 5-15 1- 6 29- 6 8- 6 30- 6 30- 6 30- 6 2- 6 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 985.0 980.2 977.3 978.0 983.6 988.5 994.5 995.6 ****** DAY-HOUR **-** **-** **-** **-** 29-15 8-15 26-15 13-15 11-12 4-12 25-12 13-12 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1008.8 1003.1 1000.1 1000.9 1006.9 1014.0 1018.0 1021.4 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1016.7 1008.1 1005.1 1006.3 1014.7 1022.8 1023.1 1027.9 ****** DAY-HOUR **-** **-** **-** **-** 5-15 1- 6 29- 6 8- 6 30- 6 30- 6 30- 6 2- 6 MIN. 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QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 991.2 985.7 982.8 983.8 989.4 996.1 1000.1 1003.6 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 995.5 989.5 986.5 988.2 995.2 1000.5 1003.4 1009.0 ****** DAY ** ** ** ** 13 1 30 8 30 30 30 2 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 986.0 981.8 979.0 980.0 985.0 990.2 995.3 996.3 ****** DAY ** ** ** ** 30 9 27 13 10 4 7 13 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1008.7 1003.2 1000.3 1001.3 1007.0 1013.8 1017.8 1021.4 ****** MAX. 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QFE PRESSURE IN HPA ****** ****** ****** ****** 987.5 982.5 979.6 981.0 985.7 991.8 997.0 1000.8 ****** DAY ** ** ** ** 30 8 27 13 10 4 7 24 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1009.5 1004.1 1001.2 1002.2 1008.1 1015.6 1019.2 1022.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1013.7 1008.1 1005.1 1006.3 1014.7 1022.8 1023.1 1027.9 ****** DAY ** ** ** ** 10 1 29 8 30 30 30 2 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1005.0 1000.0 997.0 998.4 1003.2 1009.4 1014.7 1018.5 ****** DAY ** ** ** ** 30 8 27 13 10 4 7 24 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 991.8 986.3 983.4 984.1 989.9 996.9 1000.6 1003.9 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 997.0 990.3 987.2 987.8 996.3 1002.0 1005.0 1009.5 ****** DAY ** ** ** ** 12 2 30 7 30 24 30 2 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 986.8 982.5 978.8 980.0 984.9 990.5 995.5 996.6 ****** DAY ** ** ** ** 23 8 27 13 10 4 25 13 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1009.4 1003.8 1000.8 1001.6 1007.4 1014.6 1018.3 1021.7 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1014.7 1007.9 1004.7 1005.3 1014.0 1019.7 1022.8 1027.4 ****** DAY ** ** ** ** 12 2 30 7 30 24 30 2 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1004.3 1000.0 996.2 997.4 1002.4 1008.1 1013.2 1014.3 ****** DAY ** ** ** ** 23 8 27 13 10 4 25 13 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 990.8 985.0 981.9 982.5 988.4 995.3 999.3 1002.6 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 998.0 988.5 985.9 986.4 994.7 999.8 1003.5 1007.5 ****** DAY ** ** ** ** 5 1 29 7 30 27 30 1 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 986.0 981.0 977.4 978.2 983.6 988.5 994.5 995.6 ****** DAY ** ** ** ** 29 8 27 13 11 4 25 13 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1008.4 1002.5 999.3 999.9 1005.9 1013.0 1017.0 1020.4 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1015.7 1006.0 1003.4 1003.9 1012.3 1017.5 1021.3 1025.3 ****** DAY ** ** ** ** 5 1 29 7 30 27 30 1 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1003.5 998.4 994.8 995.6 1001.1 1006.0 1012.1 1013.3 ****** DAY ** ** ** ** 29 8 27 13 11 4 25 13 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 990.3 984.3 981.5 982.0 988.3 995.5 999.8 1003.0 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 999.0 987.5 985.5 987.7 994.5 1000.1 1004.3 1007.8 ****** DAY ** ** ** ** 5 1 31 7 30 27 30 1 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 985.0 980.2 977.3 978.0 984.1 989.2 995.5 996.2 ****** DAY ** ** ** ** 29 8 26 13 10 4 25 23 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1007.9 1001.8 998.9 999.5 1005.9 1013.2 1017.5 1020.7 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1016.7 1005.0 1003.0 1005.2 1012.1 1017.8 1022.1 1025.6 ****** DAY ** ** ** ** 5 1 31 7 30 27 30 1 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1002.5 997.6 994.7 995.4 1001.6 1006.8 1013.2 1013.9 ****** DAY ** ** ** ** 29 8 26 13 10 4 25 23 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1006.9 1000.8 997.8 998.4 1005.0 1012.7 1017.5 1021.0 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1015.8 1004.0 1002.0 1004.2 1011.5 1017.7 1022.3 1025.9 ****** DAY ** ** ** ** 5 1 31 7 30 27 30 1 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1001.6 996.7 993.5 994.1 1000.6 1006.1 1013.1 1013.8 ****** DAY ** ** ** ** 29 8 26 13 10 4 25 23 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 12.2 15.6 18.7 25.6 33.7 37.4 39.2 38.5 35.6 30.2 20.3 15.3 26.9 MINIMUN AIR TEMPERATURE (C) 6.9 9.2 11.7 17.0 22.1 26.1 28.0 27.8 25.3 21.4 13.5 10.2 18.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 6 21 30 31 31 29 19 2 0 169 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) 1.6 4.4 3.4 8.0 18.2 22.2 24.2 24.5 19.8 17.2 2.2 0.6 0.6 DAY 2 6 6 2 4 26 1 31 29 22 15 30 MAXIMUM AIR TEMPERATURE (C) 16.1 20.2 23.3 30.9 39.2 42.9 45.0 44.1 41.7 36.1 25.7 19.6 32.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 2 17 31 30 31 31 30 30 10 0 212 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 20.2 24.0 30.8 39.8 45.6 48.6 49.2 48.2 46.2 39.4 33.8 25.8 49.2 DAY 24 22 30 22 31 14 13 1 8 4 3 13 DIF. BETWEEN (MAX.-MIN.) (C) 9.2 11.0 11.6 13.9 17.1 16.8 17.0 16.3 16.4 14.7 12.2 9.4 13.8 MEAN DAILY TEMP. (MDT) (C) 11.5 14.7 17.5 23.9 30.6 34.5 36.5 36.0 33.5 28.8 19.6 14.9 25.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 5.6 108.9 298.6 404.6 480.2 463.5 375.5 240.5 49.6 0.0 2427.0 HEATING DEG. DAYS(BASE 18 0C) 202.0 96.9 47.7 3.4 0.0 0.0 0.0 0.0 0.0 0.0 47.2 101.4 498.6 DEWPOINT (MEAN C) 8.0 8.0 9.5 11.4 10.4 9.4 13.3 12.8 8.5 9.5 7.7 7.4 9.6 MIXING RATIO (G/KG) 6.83 6.88 7.73 8.96 8.23 7.69 10.13 9.65 7.46 7.68 6.84 6.65 7.89 VAPOUR PRESSURE (HPA) 10.88 10.92 12.21 14.08 12.91 12.02 15.68 15.01 11.70 12.14 10.88 10.59 12.42 SATURATION DEF. (HPA) 3.69 7.31 10.24 20.57 41.82 54.81 57.68 55.54 48.72 32.42 14.75 7.57 29.59 RELATIVE HUMIDITY (MEAN %) 77 63 59 45 26 20 23 23 21 29 48 63 41 RELATIVE HUMIDITY (MAX. %) 90 83 78 64 41 31 34 36 32 40 65 78 56 RELATIVE HUMIDITY (MIN. %) 63 46 42 30 18 14 16 16 14 21 34 48 30 RELATIVE HUMIDITY (MEAN% 03UTC) 88 80 74 63 42 31 34 36 32 40 63 75 55 RELATIVE HUMIDITY (MEAN% 09UTC) 72 54 53 37 20 16 20 18 16 24 41 54 35 RELATIVE HUMIDITY (MEAN% 15UTC) 78 64 58 43 23 17 19 21 19 27 46 64 40 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 70.6 80.3 47.0 34.9 0.2 0.0 0.0 0.0 0.0 0.7 54.2 35.9 323.8 DAYS WITH PRECIPITATION >=10 2 1 1 2 0 0 0 0 0 0 2 2 10 DAYS WITH PRECIPITATION >= 5 6 4 3 2 0 0 0 0 0 0 2 3 20 DAYS WITH PRECIPITATION >= 1 9 7 4 4 0 0 0 0 0 0 3 3 30 DAYS WITH PRECIPITATION 10 10 5 7 1 0 0 0 0 1 5 6 45 GREATEST DAILY PRECIPITATION 18.0 51.0 29.3 17.9 0.2 0.0 0.0 0.0 0.0 0.7 38.2 14.7 51.0 DAY 13 17 5 26 2 ** ** ** ** 31 13 17 DAY WITH THUNDER STORM 0 3 3 2 0 0 0 0 0 0 3 1 12 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 2 4 4 10 14 10 3 7 2 0 0 56 WIND DIRECTION (PREVAILING) 270 315 315 270 270 270 270 270 270 315 315 315 270 PREVAILING WIND SPEED(KNOTS) 6.3 11.1 8.6 7.4 10.3 11.9 8.6 8.8 7.9 9.1 9.2 8.4 9.0 PREVAILING WIND PERCENT 10.3 14.9 17.4 8.6 25.8 27.3 23.2 29.0 18.7 12.9 13.3 10.3 15.8 CALMS PERCENT OF WIND 67.9 58.1 49.0 59.6 38.7 38.7 40.6 39.4 50.0 66.5 64.0 63.2 53.0 NO. OF WIND OBSERVATION 156 148 155 151 155 150 155 155 150 155 150 155 1835 VECTOR WIND DIRECTION (MEAN) 258 202 267 210 294 281 255 268 269 281 301 252 273 VECTOR WIND MAGNITUDE(KNOTS) 0.6 0.3 1.9 1.3 5.2 5.5 3.1 3.5 2.4 1.8 1.2 0.6 2.2 WIND STEADINESES (MEAN %) 30.0 6.3 43.2 35.1 82.5 82.1 62.0 68.6 61.5 69.2 40.0 20.0 52.4 WIND SPEED (MEAN KNOTS) 2.0 4.8 4.4 3.7 6.3 6.7 5.0 5.1 3.9 2.6 3.0 3.0 4.2 FASTEST WIND DIRECTION 150 130 150 210 300 320 300 300 260 300 300 100 130 FASTEST WIND SPEED (KNOTS) 14 29 23 27 29 23 17 19 19 19 17 16 29 DAY 16 2 20 14 21 15 2 8 10 8 1 15 DAYS WITH SKY CLEAR (0-2)/8 11 12 15 9 25 28 28 31 28 20 18 10 235 DAYS WITH P.CLOUDY (3-6)/8 12 9 9 11 5 1 3 0 2 11 3 9 75 DAYS WITH CLOUDY (7-8)/8 8 8 7 10 1 1 0 0 0 0 9 12 56 DAYS WITH VISIBILITY =< 2 KM 3 3 1 0 0 0 3 0 0 0 0 1 11 DURATION OF SUNSHINE HOURS 154.8 197.4 217.5 219.6 326.7 347.5 363.6 355.2 312.0 274.6 199.7 148.4 3117.0 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1002.7 999.4 996.2 993.7 990.2 984.9 979.9 982.8 988.5 995.7 1001.5 1002.1 993.1 MAX. QFE PRESSURE IN HPA 1009.2 1006.7 1002.8 1000.5 996.2 989.8 985.2 990.0 994.0 1001.3 1007.8 1012.3 1012.3 DAY-HOUR 3- 6 4- 9 6- 6 8- 6 8- 6 3- 6 30- 6 31- 6 14- 6 28- 6 15- 6 29- 6 MIN. QFE PRESSURE IN HPA 995.4 991.2 988.8 985.3 985.8 979.3 975.0 977.5 983.2 988.8 996.3 990.0 975.0 DAY-HOUR 26- 3 23-12 8-15 25-15 31-15 27-15 14-15 2-15 16-15 1-15 19-12 26- 3 MEAN QNH PRESSURE IN HPA 1020.4 1017.2 1013.9 1011.3 1007.8 1002.4 997.3 1000.3 1006.0 1013.3 1019.2 1019.9 1010.8 MAX. QNH PRESSURE IN HPA 1027.1 1024.5 1020.6 1018.2 1013.9 1007.4 1002.7 1007.6 1011.6 1019.0 1025.6 1030.2 1030.2 DAY-HOUR 3- 6 4- 9 6- 6 8- 6 8- 6 3- 6 30- 6 31- 6 14- 6 28- 6 15- 6 29- 6 MIN. QNH PRESSURE IN HPA 1013.0 1008.8 1006.4 1002.8 1003.3 996.7 992.4 994.9 1000.7 1006.4 1014.0 1007.6 992.4 DAY-HOUR 26- 3 23-12 8-15 25-15 31-15 27-15 14-15 2-15 16-15 1-15 19-12 26- 3 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1002.4 999.5 996.0 993.7 990.2 985.2 980.1 983.0 988.5 995.5 1001.4 1001.9 993.1 MAX. QFE PRESSURE IN HPA 1008.0 1005.0 1001.0 999.0 995.2 989.1 984.3 988.3 992.5 1000.0 1006.5 1011.0 1011.0 DAY 3 4 6 8 8 3 30 31 14 28 15 29 MIN. QFE PRESSURE IN HPA 995.4 992.0 988.8 987.0 987.0 980.6 976.0 979.7 984.0 989.5 997.6 990.0 976.0 DAY 26 2 23 20 18 27 18 2 17 1 19 26 MEAN QNH PRESSURE IN HPA 1020.1 1017.2 1013.7 1011.3 1007.8 1002.7 997.6 1000.4 1006.1 1013.1 1019.2 1019.7 1010.7 MAX. QNH PRESSURE IN HPA 1025.8 1022.8 1018.7 1016.7 1012.9 1006.7 1001.8 1005.8 1010.1 1017.7 1024.3 1028.9 1028.9 DAY 3 4 6 8 8 3 30 31 14 28 15 29 MIN. QNH PRESSURE IN HPA 1013.0 1009.6 1006.4 1004.5 1004.5 998.0 993.4 997.1 1001.5 1007.1 1015.3 1007.6 993.4 DAY 26 2 23 20 18 27 18 2 17 1 19 26 MEAN QFF PRESSURE IN HPA 1020.6 1017.4 1013.7 1011.0 1007.1 1001.7 996.4 999.3 1005.2 1012.6 1019.2 1019.9 1010.4 MAX. QFF PRESSURE IN HPA 1026.6 1023.2 1019.3 1016.7 1012.3 1005.7 1000.6 1005.0 1009.2 1017.3 1025.1 1029.8 1029.8 DAY 3 4 6 8 8 3 30 31 14 28 15 29 MIN. QFF PRESSURE IN HPA 1013.2 1009.5 1006.4 1003.8 1003.6 997.2 992.3 995.9 1000.6 1006.4 1015.2 1007.6 992.3 DAY 26 2 23 20 18 27 14 2 17 1 19 26 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1003.7 1000.7 997.2 994.7 991.2 985.9 981.0 983.9 989.7 996.9 1002.6 1003.4 994.2 MAX. QFE PRESSURE IN HPA 1009.2 1006.5 1002.8 1000.5 996.2 989.8 985.2 990.0 994.0 1001.3 1007.8 1012.3 1012.3 DAY 3 20 6 8 8 3 30 31 14 28 15 29 MIN. QFE PRESSURE IN HPA 997.0 994.3 992.4 988.0 987.4 981.6 977.0 980.5 985.2 990.6 997.7 991.1 977.0 DAY 26 2 9 25 27 27 14 2 17 1 11 26 MEAN QNH PRESSURE IN HPA 1021.5 1018.4 1014.9 1012.4 1008.8 1003.4 998.4 1001.4 1007.3 1014.6 1020.4 1021.1 1011.9 MAX. QNH PRESSURE IN HPA 1027.1 1024.3 1020.6 1018.2 1013.9 1007.4 1002.7 1007.6 1011.6 1019.0 1025.6 1030.2 1030.2 DAY 3 20 6 8 8 3 30 31 14 28 15 29 MIN. QNH PRESSURE IN HPA 1014.7 1011.9 1010.0 1005.5 1004.9 999.0 994.4 997.9 1002.7 1008.2 1015.4 1008.7 994.4 DAY 26 2 9 25 27 27 14 2 17 1 11 26 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1003.3 1000.4 997.1 994.6 990.9 985.5 980.7 983.5 989.2 996.3 1002.0 1002.6 993.8 MAX. QFE PRESSURE IN HPA 1008.7 1006.7 1002.4 1000.3 995.3 989.8 984.6 989.8 993.6 1000.5 1006.5 1011.2 1011.2 DAY 3 4 6 7 8 3 30 31 14 28 14 29 MIN. QFE PRESSURE IN HPA 997.5 994.0 991.8 987.6 986.5 981.2 977.0 980.0 984.9 990.0 997.2 992.0 977.0 DAY 26 2 20 25 27 28 14 2 17 1 19 26 MEAN QNH PRESSURE IN HPA 1021.0 1018.1 1014.8 1012.3 1008.5 1003.0 998.1 1001.0 1006.7 1013.9 1019.7 1020.3 1011.5 MAX. QNH PRESSURE IN HPA 1026.5 1024.5 1020.2 1018.0 1013.0 1007.4 1002.1 1007.4 1011.2 1018.2 1024.3 1029.1 1029.1 DAY 3 4 6 7 8 3 30 31 14 28 14 29 MIN. QNH PRESSURE IN HPA 1015.2 1011.6 1009.4 1005.1 1004.0 998.6 994.4 997.4 1002.4 1007.6 1014.9 1009.6 994.4 DAY 26 2 20 25 27 28 14 2 17 1 19 26 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1002.0 998.5 995.5 993.0 989.6 984.3 979.3 982.2 987.6 994.8 1000.5 1001.2 992.4 MAX. QFE PRESSURE IN HPA 1007.4 1005.4 1000.0 999.0 995.0 988.3 983.0 988.5 991.4 998.7 1005.3 1010.5 1010.5 DAY 3 4 6 7 3 3 11 31 14 28 14 29 MIN. QFE PRESSURE IN HPA 996.0 991.2 990.0 986.3 986.0 980.0 975.9 978.4 983.4 989.0 996.3 991.8 975.9 DAY 16 23 20 25 27 27 18 2 16 1 19 26 MEAN QNH PRESSURE IN HPA 1019.8 1016.2 1013.1 1010.7 1007.2 1001.7 996.7 999.6 1005.1 1012.5 1018.2 1019.0 1010.0 MAX. QNH PRESSURE IN HPA 1025.2 1023.2 1017.7 1016.7 1012.6 1005.8 1000.5 1006.0 1009.0 1016.4 1023.1 1028.4 1028.4 DAY 3 4 6 7 3 3 11 31 14 28 14 29 MIN. QNH PRESSURE IN HPA 1013.7 1008.8 1007.6 1003.8 1003.5 997.4 993.3 995.8 1000.9 1006.6 1014.0 1009.4 993.3 DAY 16 23 20 25 27 27 18 2 16 1 19 26 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1002.0 998.7 995.4 992.5 989.2 983.7 978.6 981.7 987.5 995.0 1000.9 1001.7 992.2 MAX. QFE PRESSURE IN HPA 1007.2 1005.7 1000.0 998.0 994.0 987.9 982.5 988.2 991.3 998.8 1006.8 1010.2 1010.2 DAY 3 4 6 7 3 3 11 31 14 23 14 29 MIN. QFE PRESSURE IN HPA 996.8 992.3 988.8 985.3 985.8 979.3 975.0 977.5 983.2 988.8 996.8 992.0 975.0 DAY 25 23 8 25 31 27 14 2 16 1 10 25 MEAN QNH PRESSURE IN HPA 1019.8 1016.4 1013.0 1010.1 1006.7 1001.1 996.0 999.1 1005.0 1012.7 1018.6 1019.4 1009.8 MAX. QNH PRESSURE IN HPA 1025.0 1023.5 1017.7 1015.7 1011.6 1005.4 1000.0 1005.7 1008.9 1016.5 1024.6 1028.1 1028.1 DAY 3 4 6 7 3 3 11 31 14 23 14 29 MIN. QNH PRESSURE IN HPA 1014.5 1009.9 1006.4 1002.8 1003.3 996.7 992.4 994.9 1000.7 1006.4 1014.5 1009.6 992.4 DAY 25 23 8 25 31 27 14 2 16 1 10 25 MEAN QFF PRESSURE IN HPA 1020.2 1016.6 1013.1 1009.8 1006.0 1000.1 994.8 998.0 1004.2 1012.1 1018.7 1019.7 1009.4 MAX. QFF PRESSURE IN HPA 1025.7 1023.9 1018.2 1015.8 1011.1 1004.5 998.8 1004.9 1008.0 1016.2 1025.1 1029.0 1029.0 DAY 3 4 6 7 5 3 11 31 14 31 14 29 MIN. QFF PRESSURE IN HPA 1014.7 1009.8 1006.3 1002.3 1002.3 995.8 990.9 993.8 999.7 1005.7 1014.1 1009.8 990.9 DAY 25 23 8 25 31 30 14 2 16 1 10 25 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 10.5 13.8 19.6 26.7 33.6 35.9 40.8 39.1 34.5 29.5 20.8 13.7 26.5 MINIMUN AIR TEMPERATURE (C) 5.2 7.5 13.0 18.0 23.3 26.2 30.6 29.0 24.8 20.5 14.9 9.1 18.5 DAYS WITH MINIMUM TEMP. >=21 0 0 1 4 24 30 31 31 28 16 0 0 165 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 2 0 0 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS LOWEST(C) -0.6 2.2 5.2 8.4 19.8 22.4 27.8 26.0 20.2 13.6 8.2 4.8 -0.6 DAY 5 3 31 1 15 2 7 12 20 23 23 7 MAXIMUM AIR TEMPERATURE (C) 15.1 18.4 24.6 32.1 38.9 44.0 47.0 45.5 40.8 35.5 25.5 17.3 32.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 1 21 31 30 31 31 30 29 1 0 205 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.0 24.4 31.2 37.2 45.8 49.6 50.2 47.8 45.8 41.2 30.0 26.0 50.2 DAY 22 27 7 17 30 28 20 27 9 9 2 1 DIF. BETWEEN (MAX.-MIN.) (C) 9.9 10.9 11.6 14.1 15.6 17.8 16.4 16.5 16.0 15.0 10.6 8.2 13.5 MEAN DAILY TEMP. (MDT) (C) 10.1 12.9 18.8 25.0 31.1 35.1 38.8 37.2 32.8 28.0 20.2 13.2 25.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 8.5 133.3 313.7 422.5 551.9 502.5 353.6 216.3 18.4 0.5 2521.2 HEATING DEG. DAYS(BASE 18 0C) 243.9 141.8 24.0 2.6 0.0 0.0 0.0 0.0 0.0 0.0 12.3 153.1 577.7 DEWPOINT (MEAN C) 4.6 4.3 7.9 8.6 5.6 8.0 12.8 10.8 9.5 9.0 10.2 9.8 8.4 MIXING RATIO (G/KG) 5.39 5.49 6.96 7.28 6.03 7.06 10.05 8.57 8.08 7.46 8.15 7.73 7.35 VAPOUR PRESSURE (HPA) 8.62 8.76 11.01 11.51 9.51 11.05 15.59 13.37 12.67 11.81 12.95 12.31 11.60 SATURATION DEF. (HPA) 4.56 7.64 12.63 25.17 45.19 51.41 64.40 59.60 44.31 31.30 12.37 3.77 30.20 RELATIVE HUMIDITY (MEAN %) 69 56 50 35 21 20 22 20 24 30 54 79 40 RELATIVE HUMIDITY (MAX. %) 86 74 71 55 36 34 33 31 38 43 71 91 55 RELATIVE HUMIDITY (MIN. %) 53 40 34 21 12 11 14 13 15 21 39 64 28 RELATIVE HUMIDITY (MEAN% 03UTC) 84 72 68 55 36 31 32 30 38 42 68 90 54 RELATIVE HUMIDITY (MEAN% 09UTC) 64 48 42 28 15 14 18 16 19 25 45 71 34 RELATIVE HUMIDITY (MEAN% 15UTC) 67 55 47 31 18 14 17 17 20 29 55 81 38 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 33.1 31.0 25.8 12.7 0.4 0.0 0.0 0.0 0.0 4.0 28.9 215.8 351.7 DAYS WITH PRECIPITATION >=10 1 1 0 0 0 0 0 0 0 0 1 6 9 DAYS WITH PRECIPITATION >= 5 4 2 2 0 0 0 0 0 0 0 3 6 17 DAYS WITH PRECIPITATION >= 1 5 3 6 4 0 0 0 0 0 1 6 8 33 DAYS WITH PRECIPITATION 8 8 10 7 2 0 0 0 0 1 7 8 51 GREATEST DAILY PRECIPITATION 12.0 19.0 8.0 4.0 0.3 0.0 0.0 0.0 0.0 4.0 10.0 105.0 105.0 DAY 3 23 16 26 8 ** ** ** ** 31 12 4 DAY WITH THUNDER STORM 1 2 4 5 0 0 0 0 0 1 4 6 23 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 7 4 7 13 13 7 8 3 0 0 62 WIND DIRECTION (PREVAILING) 270 225 315 315 315 315 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 6.1 6.9 9.8 9.7 15.8 10.1 9.1 9.1 9.0 7.7 7.1 8.7 8.8 PREVAILING WIND PERCENT 11.0 10.0 10.3 18.7 21.3 23.3 20.6 25.8 20.0 9.7 14.0 8.4 13.4 CALMS PERCENT OF WIND 61.3 69.3 54.2 52.7 36.8 50.0 34.8 34.2 44.7 69.7 53.3 68.4 52.3 NO. OF WIND OBSERVATION 155 140 155 150 155 202 155 155 150 155 150 155 1877 VECTOR WIND DIRECTION (MEAN) 242 252 171 286 290 289 245 256 272 280 302 221 269 VECTOR WIND MAGNITUDE(KNOTS) 0.6 1.4 1.0 1.8 4.6 3.5 3.0 3.4 3.3 1.3 0.7 0.5 1.9 WIND STEADINESES (MEAN %) 20.7 58.3 22.7 43.9 62.2 77.8 55.6 65.4 73.3 56.5 22.6 18.5 46.3 WIND SPEED (MEAN KNOTS) 2.9 2.4 4.4 4.1 7.4 4.5 5.4 5.2 4.5 2.3 3.1 2.7 4.1 FASTEST WIND DIRECTION 130 170 150 60 310 270 320 300 300 290 270 270 270 FASTEST WIND SPEED (KNOTS) 29 25 29 19 35 19 23 23 19 19 14 39 39 DAY 11 22 15 5 27 16 9 27 18 3 4 4 DAYS WITH SKY CLEAR (0-2)/8 15 15 14 12 21 30 31 29 30 21 12 16 246 DAYS WITH P.CLOUDY (3-6)/8 11 7 6 13 3 0 0 2 0 9 10 6 67 DAYS WITH CLOUDY (7-8)/8 5 6 11 5 7 0 0 0 0 1 8 9 52 DAYS WITH VISIBILITY =< 2 KM 2 1 0 0 0 0 0 0 0 0 1 1 5 DURATION OF SUNSHINE HOURS 193.7 193.6 192.3 229.8 284.4 353.8 363.0 339.3 309.9 282.2 165.6 188.3 3095.9 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1002.8 1002.8 996.4 996.2 992.0 985.9 982.7 984.4 990.1 996.9 1002.0 1002.8 994.6 MAX. QFE PRESSURE IN HPA 1008.1 1008.0 1007.9 1007.0 998.9 991.0 987.0 988.2 997.7 1004.0 1006.7 1007.8 1008.1 DAY-HOUR 18- 6 7- 6 31- 9 1- 6 8- 6 1- 6 8- 6 26- 6 24- 6 27- 6 26- 6 19- 6 MIN. QFE PRESSURE IN HPA 993.2 992.0 985.5 988.1 985.0 980.7 978.5 980.0 984.6 990.2 997.5 997.0 978.5 DAY-HOUR 11-15 22-12 15-15 23-15 30-12 30-15 30-15 1-15 5-15 11-12 16- 3 12-15 MEAN QNH PRESSURE IN HPA 1020.6 1020.5 1014.1 1013.9 1009.5 1003.4 1000.2 1001.9 1007.7 1014.5 1019.7 1020.6 1012.2 MAX. QNH PRESSURE IN HPA 1025.9 1025.8 1025.7 1024.8 1016.6 1008.6 1004.5 1005.7 1015.4 1021.8 1024.5 1025.6 1025.9 DAY-HOUR 18- 6 7- 6 31- 9 1- 6 8- 6 1- 6 8- 6 26- 6 24- 6 27- 6 26- 6 19- 6 MIN. QNH PRESSURE IN HPA 1010.8 1009.6 1003.0 1005.6 1002.5 998.1 995.9 997.4 1002.1 1007.8 1015.2 1014.7 995.9 DAY-HOUR 11-15 22-12 15-15 23-15 30-12 30-15 30-15 1-15 5-15 11-12 16- 3 12-15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1002.3 ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1007.6 ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** 12- 6 **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 997.0 ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** 30-15 **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 986.0 ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 990.5 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 1 ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 982.0 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 8 ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1003.5 ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1008.1 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 1 ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 999.5 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 8 ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1002.4 ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1007.1 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 1 ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 998.3 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 16 ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1002.5 1002.5 996.4 996.3 992.0 986.1 983.0 984.6 990.1 996.8 1001.7 1002.6 994.5 MAX. QFE PRESSURE IN HPA 1006.1 1006.2 1005.4 1006.1 997.8 990.5 986.7 987.1 996.2 1002.4 1005.6 1006.8 1006.8 DAY 30 4 31 1 9 1 9 26 24 27 26 19 MIN. QFE PRESSURE IN HPA 998.0 997.0 989.3 990.2 986.6 982.1 980.0 981.7 986.0 991.2 997.5 997.5 980.0 DAY 3 13 27 24 30 30 31 1 6 11 16 4 MEAN QNH PRESSURE IN HPA 1020.3 1020.2 1014.1 1014.0 1009.6 1003.6 1000.5 1002.1 1007.7 1014.5 1019.4 1020.3 1012.2 MAX. QNH PRESSURE IN HPA 1023.9 1024.0 1023.2 1023.9 1015.5 1008.1 1004.2 1004.6 1013.9 1020.2 1023.4 1024.6 1024.6 DAY 30 4 31 1 9 1 9 26 24 27 26 19 MIN. QNH PRESSURE IN HPA 1015.7 1014.7 1006.9 1007.8 1004.1 999.6 997.4 999.2 1003.5 1008.8 1015.2 1015.2 997.4 DAY 3 13 27 24 30 30 31 1 6 11 16 4 MEAN QFF PRESSURE IN HPA 1020.9 1020.6 1014.1 1013.6 1008.8 1002.6 999.3 1000.9 1006.8 1014.0 1019.3 1020.7 1011.8 MAX. QFF PRESSURE IN HPA 1024.6 1024.7 1023.8 1024.2 1015.1 1007.2 1003.0 1003.5 1013.1 1019.7 1023.5 1025.2 1025.2 DAY 19 4 31 1 9 1 9 26 24 27 26 19 MIN. QFF PRESSURE IN HPA 1015.9 1014.8 1006.6 1007.3 1003.2 998.4 996.2 998.0 1002.5 1008.2 1015.0 1015.2 996.2 DAY 28 22 27 24 30 30 31 1 6 11 16 4 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1004.0 1004.1 997.5 997.6 993.1 986.8 983.9 985.5 991.2 998.2 1003.2 1003.8 995.7 MAX. QFE PRESSURE IN HPA 1008.1 1008.0 1007.3 1007.0 998.9 991.0 987.0 988.2 997.7 1004.0 1006.7 1007.8 1008.1 DAY 18 7 31 1 8 1 8 26 24 27 26 19 MIN. QFE PRESSURE IN HPA 998.7 998.0 989.0 991.8 987.0 982.9 981.3 982.0 987.2 992.4 999.0 999.0 981.3 DAY 11 22 10 23 30 30 30 1 6 11 16 4 MEAN QNH PRESSURE IN HPA 1021.8 1021.9 1015.2 1015.3 1010.7 1004.3 1001.4 1003.1 1008.8 1015.9 1021.0 1021.6 1013.4 MAX. QNH PRESSURE IN HPA 1025.9 1025.8 1025.1 1024.8 1016.6 1008.6 1004.5 1005.7 1015.4 1021.8 1024.5 1025.6 1025.9 DAY 18 7 31 1 8 1 8 26 24 27 26 19 MIN. QNH PRESSURE IN HPA 1016.4 1015.7 1006.6 1009.4 1004.5 1000.4 998.7 999.5 1004.7 1010.0 1016.7 1016.7 998.7 DAY 11 22 10 23 30 30 30 1 6 11 16 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1003.4 ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1007.6 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 12 ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1000.0 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 15 ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1003.7 1003.6 997.2 997.0 992.7 986.4 983.5 985.1 990.8 997.4 1002.4 1003.2 995.3 MAX. QFE PRESSURE IN HPA 1007.9 1007.7 1007.9 1006.0 998.6 990.7 987.0 987.9 996.6 1002.7 1005.8 1007.2 1007.9 DAY 18 8 31 1 8 12 8 26 24 27 22 18 MIN. QFE PRESSURE IN HPA 997.0 995.0 990.0 990.6 986.3 982.2 980.9 981.5 987.0 992.1 998.8 997.8 980.9 DAY 11 22 10 23 30 30 30 1 6 11 16 4 MEAN QNH PRESSURE IN HPA 1021.4 1021.4 1014.9 1014.7 1010.3 1004.0 1001.0 1002.6 1008.4 1015.1 1020.2 1021.0 1012.9 MAX. QNH PRESSURE IN HPA 1025.7 1025.5 1025.7 1023.8 1016.3 1008.3 1004.5 1005.4 1014.3 1020.5 1023.6 1025.0 1025.7 DAY 18 8 31 1 8 12 8 26 24 27 22 18 MIN. QNH PRESSURE IN HPA 1014.7 1012.6 1007.6 1008.2 1003.8 999.7 998.3 998.9 1004.5 1009.7 1016.5 1015.5 998.3 DAY 11 22 10 23 30 30 30 1 6 11 16 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1002.9 ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1007.3 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 12 ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 999.5 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 15 ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1001.9 1001.7 995.5 995.2 991.2 985.2 982.0 983.8 989.3 995.9 1001.1 1002.1 993.7 MAX. QFE PRESSURE IN HPA 1006.1 1006.0 1005.5 1003.9 998.2 990.0 985.8 986.8 994.6 1001.0 1004.9 1006.6 1006.6 DAY 18 8 31 1 8 12 8 26 24 27 21 18 MIN. QFE PRESSURE IN HPA 994.0 992.0 986.0 988.8 985.0 981.2 979.0 980.2 985.1 990.2 998.0 997.6 979.0 DAY 11 22 15 23 30 30 31 1 5 11 6 4 MEAN QNH PRESSURE IN HPA 1019.7 1019.4 1013.2 1012.9 1008.8 1002.7 999.5 1001.2 1006.9 1013.5 1018.9 1019.8 1011.4 MAX. QNH PRESSURE IN HPA 1023.9 1023.8 1023.3 1021.7 1015.9 1007.6 1003.3 1004.3 1012.2 1018.7 1022.7 1024.4 1024.4 DAY 18 8 31 1 8 12 8 26 24 27 21 18 MIN. QNH PRESSURE IN HPA 1011.6 1009.6 1003.5 1006.4 1002.5 998.6 996.4 997.6 1002.6 1007.8 1015.7 1015.3 996.4 DAY 11 22 15 23 30 30 31 1 5 11 6 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1001.9 ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1006.6 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 12 ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 997.9 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 15 ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1002.1 1002.0 995.6 995.0 990.9 984.7 981.3 983.3 989.1 996.0 1001.4 1002.5 993.6 MAX. QFE PRESSURE IN HPA 1007.0 1006.0 1005.2 1003.9 997.6 989.2 985.2 986.1 994.0 1002.0 1005.6 1007.4 1007.4 DAY 18 7 31 1 8 12 8 26 24 27 22 18 MIN. QFE PRESSURE IN HPA 993.2 994.0 985.5 988.1 985.0 980.7 978.5 980.0 984.6 990.7 997.7 997.0 978.5 DAY 11 22 15 23 30 30 30 1 5 11 16 12 MEAN QNH PRESSURE IN HPA 1019.9 1019.8 1013.2 1012.6 1008.5 1002.2 998.7 1000.8 1006.6 1013.7 1019.1 1020.2 1011.3 MAX. QNH PRESSURE IN HPA 1024.8 1023.8 1023.0 1021.7 1015.3 1006.8 1002.7 1003.6 1011.6 1019.7 1023.4 1025.2 1025.2 DAY 18 7 31 1 8 12 8 26 24 27 22 18 MIN. QNH PRESSURE IN HPA 1010.8 1011.6 1003.0 1005.6 1002.5 998.1 995.9 997.4 1002.1 1008.3 1015.4 1014.7 995.9 DAY 11 22 15 23 30 30 30 1 5 11 16 12 MEAN QFF PRESSURE IN HPA 1020.4 1020.1 1013.2 1012.2 1007.7 1001.1 997.5 999.7 1005.8 1013.2 1019.0 1020.6 1010.9 MAX. QFF PRESSURE IN HPA 1025.6 1024.3 1023.5 1021.9 1014.9 1005.8 1001.4 1002.5 1010.9 1019.2 1023.7 1025.8 1025.8 DAY 18 7 31 1 8 12 8 26 24 27 22 18 MIN. QFF PRESSURE IN HPA 1011.0 1011.7 1002.8 1005.1 1001.5 997.0 994.5 996.3 1001.0 1007.7 1015.1 1014.8 994.5 DAY 11 22 15 23 30 30 30 1 5 11 16 12 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 986.0 ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 990.4 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 12 ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 982.6 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 15 ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1003.5 ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1008.0 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 12 ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1000.1 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 15 ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1002.5 ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1007.0 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 12 ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 999.0 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 15 ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 986.3 ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 990.8 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 12 ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 982.8 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 8 ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1003.8 ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1008.4 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 12 ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1000.3 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 8 ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1002.7 ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1007.4 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 12 ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 999.1 ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** 8 ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 11.3 14.4 19.9 25.1 35.6 38.4 40.3 38.5 35.7 29.6 22.5 16.8 27.3 MINIMUN AIR TEMPERATURE (C) 6.5 8.3 12.0 17.3 24.4 26.5 30.2 28.1 24.9 21.0 14.6 10.3 18.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 3 25 30 31 31 30 18 0 0 168 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 4.8 7.6 11.0 18.6 22.8 26.0 25.0 23.0 16.4 10.2 2.6 1.0 DAY 12 12 20 6 7 21 3 21 21 31 14 28 MAXIMUM AIR TEMPERATURE (C) 15.1 18.7 25.0 31.2 41.4 44.7 46.0 44.6 42.0 35.2 28.4 21.9 32.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 1 18 31 30 31 31 30 28 11 0 211 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.2 23.6 30.2 37.8 47.2 48.0 49.8 48.2 45.2 40.0 32.8 27.6 49.8 DAY 1 18 31 28 18 5 17 4 6 8 11 6 DIF. BETWEEN (MAX.-MIN.) (C) 8.6 10.4 13.0 13.9 17.0 18.2 15.8 16.5 17.1 14.2 13.8 11.6 14.2 MEAN DAILY TEMP. (MDT) (C) 10.8 13.5 18.5 24.2 32.9 35.6 38.1 36.4 33.5 28.1 21.5 16.1 25.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 5.5 106.8 368.3 439.0 531.4 476.7 374.4 220.0 36.4 0.0 2558.5 HEATING DEG. DAYS(BASE 18 0C) 224.5 125.3 23.4 0.1 0.0 0.0 0.0 0.0 0.0 0.0 1.3 78.0 452.6 DEWPOINT (MEAN C) 5.8 6.5 6.2 5.9 5.8 6.6 8.5 7.2 6.6 7.0 6.6 6.0 6.6 MIXING RATIO (G/KG) 5.92 6.28 6.16 6.16 6.16 6.50 7.53 6.70 6.36 6.73 6.27 5.95 6.40 VAPOUR PRESSURE (HPA) 9.45 9.99 9.80 9.76 9.69 10.19 11.74 10.50 10.01 10.67 9.99 9.50 10.11 SATURATION DEF. (HPA) 4.35 6.84 14.23 23.95 51.91 60.50 66.37 60.47 50.91 32.32 18.39 10.58 33.40 RELATIVE HUMIDITY (MEAN %) 71 63 44 34 18 17 17 17 19 28 39 52 35 RELATIVE HUMIDITY (MAX. %) 87 82 63 49 30 29 29 28 30 41 56 68 49 RELATIVE HUMIDITY (MIN. %) 55 46 29 18 12 9 10 10 10 17 24 35 23 RELATIVE HUMIDITY (MEAN% 03UTC) 86 81 61 46 29 29 29 28 30 41 54 66 48 RELATIVE HUMIDITY (MEAN% 09UTC) 61 53 35 22 13 12 14 13 14 23 30 44 28 RELATIVE HUMIDITY (MEAN% 15UTC) 73 62 42 29 16 12 12 12 16 27 41 53 33 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 66.9 37.3 4.8 12.4 0.7 0.0 0.0 0.0 0.0 28.2 16.6 21.5 188.4 DAYS WITH PRECIPITATION >=10 3 2 0 1 0 0 0 0 0 1 1 1 9 DAYS WITH PRECIPITATION >= 5 4 3 0 1 0 0 0 0 0 1 1 2 12 DAYS WITH PRECIPITATION >= 1 7 6 1 2 0 0 0 0 0 1 1 2 20 DAYS WITH PRECIPITATION 9 8 4 2 1 0 0 0 0 1 2 2 29 GREATEST DAILY PRECIPITATION 20.0 14.3 4.0 11.2 0.7 0.0 0.0 0.0 0.0 28.2 16.0 16.0 28.2 DAY 4 5 14 3 12 ** ** ** ** 29 28 21 DAY WITH THUNDER STORM 3 1 0 1 1 0 0 0 0 1 1 1 9 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 3 3 6 8 6 9 4 3 0 0 0 42 WIND DIRECTION (PREVAILING) 315 315 270 270 315 270 270 270 270 270 315 270 270 PREVAILING WIND SPEED(KNOTS) 9.1 7.3 6.4 7.5 12.1 8.8 10.1 7.0 7.4 6.3 8.1 5.2 8.0 PREVAILING WIND PERCENT 9.0 18.6 14.8 20.1 31.6 28.0 31.0 20.6 18.0 10.3 9.3 6.5 17.0 CALMS PERCENT OF WIND 67.7 45.7 45.8 36.7 33.5 32.0 33.5 33.5 57.3 63.2 74.0 81.9 50.3 NO. OF WIND OBSERVATION 155 140 155 169 155 150 155 155 150 155 150 155 1844 VECTOR WIND DIRECTION (MEAN) 280 259 283 257 300 275 265 249 263 265 264 279 274 VECTOR WIND MAGNITUDE(KNOTS) 1.0 1.5 1.0 1.4 6.2 5.0 3.8 2.4 2.1 1.1 0.8 0.6 2.2 WIND STEADINESES (MEAN %) 41.7 38.5 27.0 29.2 86.1 76.9 62.3 53.3 70.0 42.3 40.0 54.5 55.0 WIND SPEED (MEAN KNOTS) 2.4 3.9 3.7 4.8 7.2 6.5 6.1 4.5 3.0 2.6 2.0 1.1 4.0 FASTEST WIND DIRECTION 150 300 290 140 300 310 300 280 270 330 180 300 300 FASTEST WIND SPEED (KNOTS) 16 23 16 23 31 29 23 17 19 23 19 14 31 DAY 8 11 3 13 12 5 2 6 11 29 12 15 DAYS WITH SKY CLEAR (0-2)/8 12 18 16 13 26 30 29 28 30 21 20 14 257 DAYS WITH P.CLOUDY (3-6)/8 9 5 11 11 3 0 2 3 0 9 10 13 76 DAYS WITH CLOUDY (7-8)/8 10 5 4 6 2 0 0 0 0 1 0 4 32 DAYS WITH VISIBILITY =< 2 KM 1 0 0 0 0 0 0 1 0 0 0 0 2 DURATION OF SUNSHINE HOURS 173.5 211.7 236.5 117.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1003.9 999.3 1000.0 995.6 990.3 986.1 982.4 985.0 989.2 997.6 1001.5 1002.7 994.5 MAX. QFE PRESSURE IN HPA 1011.1 1005.2 1006.9 1001.2 996.2 992.1 989.0 988.6 995.2 1005.0 1007.9 1008.6 1011.1 DAY-HOUR 12- 6 12- 9 9- 6 4-21 8- 6 4- 6 15- 6 29- 6 27- 6 30- 6 14- 6 28- 6 MIN. QFE PRESSURE IN HPA 993.5 991.3 994.0 989.2 984.2 980.0 978.6 980.0 984.0 991.5 994.0 996.0 978.6 DAY-HOUR 4-15 10- 3 31-15 29-15 30-12 30-15 18-15 14-15 5-12 1-12 1-12 21- 9 MEAN QNH PRESSURE IN HPA 1021.7 1017.1 1017.7 1013.3 1007.9 1003.6 999.8 1002.5 1006.8 1015.3 1019.2 1020.4 1012.1 MAX. QNH PRESSURE IN HPA 1029.0 1023.0 1024.7 1018.9 1013.9 1009.7 1006.6 1006.2 1012.9 1022.8 1025.7 1026.4 1029.0 DAY-HOUR 12- 6 12- 9 9- 6 4-21 8- 6 4- 6 15- 6 29- 6 27- 6 30- 6 14- 6 28- 6 MIN. QNH PRESSURE IN HPA 1011.1 1008.9 1011.6 1006.8 1001.7 997.4 996.0 997.4 1001.5 1009.1 1011.6 1013.7 996.0 DAY-HOUR 4-15 10- 3 31-15 29-15 30-12 30-15 18-15 14-15 5-12 1-12 1-12 21- 9 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1003.7 999.2 1000.0 995.4 990.6 986.5 982.8 985.4 989.4 997.5 1001.5 1002.6 994.6 MAX. QFE PRESSURE IN HPA 1009.6 1004.5 1005.0 1000.7 995.5 991.0 987.7 988.0 994.0 1003.4 1007.0 1007.3 1009.6 DAY 20 12 9 4 8 4 15 29 27 30 14 29 MIN. QFE PRESSURE IN HPA 998.2 991.3 997.0 989.8 985.0 982.0 980.0 981.0 985.1 992.0 994.7 998.1 980.0 DAY 4 10 24 2 30 24 5 14 4 1 2 25 MEAN QNH PRESSURE IN HPA 1021.5 1017.0 1017.7 1013.0 1008.2 1004.0 1000.3 1002.9 1007.0 1015.2 1019.2 1020.3 1012.2 MAX. QNH PRESSURE IN HPA 1027.5 1022.3 1022.8 1018.4 1013.2 1008.6 1005.2 1005.5 1011.6 1021.2 1024.8 1025.1 1027.5 DAY 20 12 9 4 8 4 15 29 27 30 14 29 MIN. QNH PRESSURE IN HPA 1015.9 1008.9 1014.7 1007.4 1002.5 999.5 997.4 998.4 1002.6 1009.6 1012.3 1015.8 997.4 DAY 4 10 24 2 30 24 5 14 4 1 2 25 MEAN QFF PRESSURE IN HPA 1022.0 1017.3 1017.7 1012.7 1007.4 1003.0 999.1 1001.8 1006.1 1014.7 1019.1 1020.6 1011.8 MAX. QFF PRESSURE IN HPA 1028.1 1022.9 1022.8 1018.2 1012.6 1007.5 1004.1 1004.5 1010.8 1020.9 1025.0 1025.8 1028.1 DAY 12 12 9 4 8 17 15 29 27 30 14 29 MIN. QFF PRESSURE IN HPA 1016.2 1009.0 1014.5 1007.1 1001.5 998.4 996.4 997.3 1001.7 1008.8 1012.1 1015.9 996.4 DAY 4 10 24 2 30 24 5 14 4 1 2 25 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1005.2 1000.5 1001.3 996.6 991.6 987.2 983.5 986.1 990.4 999.0 1002.8 1004.0 995.7 MAX. QFE PRESSURE IN HPA 1011.1 1005.2 1006.9 1001.1 996.2 992.1 989.0 988.6 995.2 1005.0 1007.9 1008.6 1011.1 DAY 12 13 9 4 8 4 15 29 27 30 14 28 MIN. QFE PRESSURE IN HPA 999.0 993.2 998.3 991.2 985.9 982.4 980.6 981.8 985.8 993.2 996.3 999.0 980.6 DAY 1 15 31 15 30 24 5 14 5 1 2 10 MEAN QNH PRESSURE IN HPA 1023.0 1018.2 1019.0 1014.2 1009.2 1004.7 1001.0 1003.6 1008.0 1016.7 1020.5 1021.7 1013.3 MAX. QNH PRESSURE IN HPA 1029.0 1023.0 1024.7 1018.8 1013.9 1009.7 1006.6 1006.2 1012.9 1022.8 1025.7 1026.4 1029.0 DAY 12 13 9 4 8 4 15 29 27 30 14 28 MIN. QNH PRESSURE IN HPA 1016.7 1010.8 1016.0 1008.8 1003.4 999.9 998.0 999.3 1003.3 1010.8 1014.0 1016.7 998.0 DAY 1 15 31 15 30 24 5 14 5 1 2 10 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1004.6 1000.1 1000.8 996.3 990.9 986.8 982.9 985.5 989.8 998.2 1001.8 1003.0 995.1 MAX. QFE PRESSURE IN HPA 1010.7 1005.2 1006.9 1001.0 995.3 991.2 987.9 987.8 994.2 1003.9 1007.3 1007.6 1010.7 DAY 11 12 9 8 7 4 15 29 27 30 14 28 MIN. QFE PRESSURE IN HPA 997.0 993.5 998.0 991.6 985.0 982.0 980.7 981.3 985.0 992.9 995.9 996.0 980.7 DAY 4 15 31 15 30 30 12 14 5 1 2 21 MEAN QNH PRESSURE IN HPA 1022.4 1017.8 1018.5 1013.9 1008.5 1004.3 1000.4 1003.1 1007.4 1015.9 1019.6 1020.8 1012.7 MAX. QNH PRESSURE IN HPA 1028.6 1023.0 1024.7 1018.7 1013.0 1008.8 1005.4 1005.3 1011.8 1021.7 1025.1 1025.4 1028.6 DAY 11 12 9 8 7 4 15 29 27 30 14 28 MIN. QNH PRESSURE IN HPA 1014.7 1011.1 1015.7 1009.2 1002.5 999.5 998.1 998.7 1002.5 1010.5 1013.6 1013.7 998.1 DAY 4 15 31 15 30 30 12 14 5 1 2 21 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1003.0 998.4 999.0 994.7 989.5 985.3 981.5 984.3 988.3 996.8 1000.3 1001.7 993.6 MAX. QFE PRESSURE IN HPA 1009.7 1003.2 1005.0 999.1 994.6 989.7 986.5 986.8 992.8 1002.5 1006.0 1006.5 1009.7 DAY 11 12 9 8 7 4 15 10 27 30 14 28 MIN. QFE PRESSURE IN HPA 993.8 991.5 994.4 990.2 984.2 980.6 979.5 980.3 984.0 991.5 994.0 996.3 979.5 DAY 4 15 31 29 30 30 5 14 5 1 1 10 MEAN QNH PRESSURE IN HPA 1020.7 1016.1 1016.7 1012.4 1007.1 1002.8 999.0 1001.8 1005.9 1014.5 1018.1 1019.4 1011.2 MAX. QNH PRESSURE IN HPA 1027.6 1021.0 1022.8 1016.8 1012.2 1007.3 1004.0 1004.3 1010.4 1020.3 1023.8 1024.3 1027.6 DAY 11 12 9 8 7 4 15 10 27 30 14 28 MIN. QNH PRESSURE IN HPA 1011.4 1009.1 1012.0 1007.8 1001.7 998.0 996.9 997.7 1001.5 1009.1 1011.6 1014.0 996.9 DAY 4 15 31 29 30 30 5 14 5 1 1 10 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1003.2 998.5 999.0 994.6 989.2 984.8 981.0 983.8 988.2 996.8 1000.9 1002.2 993.5 MAX. QFE PRESSURE IN HPA 1009.7 1003.8 1005.8 999.1 994.0 989.7 986.0 986.2 992.6 1002.2 1006.5 1007.8 1009.7 DAY 11 7 9 4 7 4 15 11 27 30 14 28 MIN. QFE PRESSURE IN HPA 993.5 992.9 994.0 989.2 984.2 980.0 978.6 980.0 984.0 992.0 994.0 997.0 978.6 DAY 4 15 31 29 30 30 18 14 5 1 1 10 MEAN QNH PRESSURE IN HPA 1021.0 1016.2 1016.7 1012.2 1006.7 1002.3 998.5 1001.3 1005.7 1014.4 1018.7 1019.9 1011.1 MAX. QNH PRESSURE IN HPA 1027.6 1021.6 1023.6 1016.8 1011.6 1007.3 1003.5 1003.7 1010.2 1020.0 1024.3 1025.6 1027.6 DAY 11 7 9 4 7 4 15 11 27 30 14 28 MIN. QNH PRESSURE IN HPA 1011.1 1010.5 1011.6 1006.8 1001.7 997.4 996.0 997.4 1001.5 1009.6 1011.6 1014.7 996.0 DAY 4 15 31 29 30 30 18 14 5 1 1 10 MEAN QFF PRESSURE IN HPA 1021.5 1016.6 1016.7 1011.8 1005.9 1001.2 997.3 1000.2 1004.8 1013.9 1018.6 1020.2 1010.7 MAX. QFF PRESSURE IN HPA 1028.4 1022.1 1023.7 1016.6 1011.1 1006.2 1002.3 1002.7 1009.4 1019.7 1024.5 1026.3 1028.4 DAY 11 12 9 4 7 4 15 11 27 30 14 28 MIN. QFF PRESSURE IN HPA 1011.3 1010.6 1011.5 1005.9 1000.7 996.3 994.6 996.2 1000.6 1008.9 1011.4 1014.7 994.6 DAY 4 15 31 29 30 30 18 14 5 1 1 10 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 12.8 14.1 18.4 26.9 31.4 37.5 38.5 37.7 34.2 27.8 22.0 14.4 26.3 MINIMUN AIR TEMPERATURE (C) 8.9 8.6 12.9 18.0 21.7 27.0 28.2 28.1 24.7 20.4 15.0 10.3 18.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 4 17 30 31 31 30 11 1 0 155 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) 3.6 2.2 6.4 12.4 16.6 21.6 26.0 24.0 21.6 16.0 10.0 4.0 2.2 DAY 28 11 11 14 4 4 8 30 10 30 27 20 MAXIMUM AIR TEMPERATURE (C) 16.0 18.4 22.7 32.6 36.8 43.5 44.6 44.0 40.6 33.5 27.5 18.0 31.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 20 31 29 30 31 30 25 4 0 200 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.0 22.0 29.2 39.6 40.8 47.0 47.2 47.4 45.0 39.0 35.0 25.0 47.4 DAY 31 19 31 24 31 24 5 1 1 12 1 12 DIF. BETWEEN (MAX.-MIN.) (C) 7.1 9.8 9.8 14.6 15.1 16.5 16.4 15.9 15.9 13.1 12.5 7.7 12.8 MEAN DAILY TEMP. (MDT) (C) 12.4 13.5 17.8 25.3 29.2 35.3 36.4 36.0 32.6 27.0 21.3 14.2 25.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 5.6 131.5 255.3 416.4 461.8 466.4 349.3 185.5 37.9 0.0 2309.7 HEATING DEG. DAYS(BASE 18 0C) 172.4 126.0 42.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 124.3 465.7 DEWPOINT (MEAN C) 9.1 5.2 10.9 8.3 3.9 8.8 10.1 12.3 11.7 12.2 7.4 10.1 9.2 MIXING RATIO (G/KG) 7.40 5.90 8.40 7.16 5.36 7.60 8.06 9.56 9.19 9.40 6.57 7.94 7.71 VAPOUR PRESSURE (HPA) 11.78 9.40 13.29 11.33 8.48 11.89 12.57 14.88 14.42 14.84 10.47 12.63 12.16 SATURATION DEF. (HPA) 3.30 7.15 8.57 25.92 39.35 55.37 58.24 52.80 41.55 23.85 17.09 4.29 28.12 RELATIVE HUMIDITY (MEAN %) 80 59 64 34 20 20 20 24 28 43 41 77 43 RELATIVE HUMIDITY (MAX. %) 91 77 82 52 36 32 33 38 43 61 57 89 58 RELATIVE HUMIDITY (MIN. %) 67 41 49 21 11 13 12 15 18 29 28 63 31 RELATIVE HUMIDITY (MEAN% 03UTC) 88 74 79 50 36 32 32 38 42 59 56 87 56 RELATIVE HUMIDITY (MEAN% 09UTC) 74 50 55 27 15 15 16 20 24 36 32 68 36 RELATIVE HUMIDITY (MEAN% 15UTC) 81 57 62 31 14 16 14 19 23 40 40 80 40 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 80.4 52.6 34.3 7.2 0.0 0.0 0.0 0.0 0.0 59.6 0.3 173.4 407.8 DAYS WITH PRECIPITATION >=10 5 2 1 0 0 0 0 0 0 2 0 4 14 DAYS WITH PRECIPITATION >= 5 5 5 2 1 0 0 0 0 0 4 0 6 23 DAYS WITH PRECIPITATION >= 1 9 6 6 2 0 0 0 0 0 6 0 11 40 DAYS WITH PRECIPITATION 11 8 7 4 0 0 0 0 0 7 1 14 52 GREATEST DAILY PRECIPITATION 22.4 20.0 18.0 5.0 0.0 0.0 0.0 0.0 0.0 26.0 0.3 59.0 59.0 DAY 3 21 6 4 ** ** ** ** ** 3 30 10 DAY WITH THUNDER STORM 1 3 2 2 0 0 0 0 0 5 1 6 20 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 0 2 11 3 1 3 1 0 1 0 22 WIND DIRECTION (PREVAILING) 315 270 270 315 270 270 270 270 270 315 270 135 270 PREVAILING WIND SPEED(KNOTS) 6.9 6.4 5.5 9.5 8.5 8.1 7.5 7.2 6.7 9.1 5.8 9.0 7.5 PREVAILING WIND PERCENT 9.7 10.7 9.7 19.3 28.4 24.0 20.0 25.2 17.3 20.6 7.3 15.5 15.0 CALMS PERCENT OF WIND 78.1 68.6 68.4 45.3 37.4 46.7 54.2 49.0 44.7 50.3 68.7 57.4 55.7 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 293 285 274 293 286 283 271 273 252 308 212 160 278 VECTOR WIND MAGNITUDE(KNOTS) 0.3 0.9 0.5 2.1 4.5 3.7 2.2 2.6 1.9 2.7 0.8 0.9 1.7 WIND STEADINESES (MEAN %) 18.8 40.9 23.8 42.9 83.3 84.1 75.9 76.5 51.4 67.5 38.1 26.5 51.5 WIND SPEED (MEAN KNOTS) 1.6 2.2 2.1 4.9 5.4 4.4 2.9 3.4 3.7 4.0 2.1 3.4 3.3 FASTEST WIND DIRECTION 160 310 170 30 300 260 300 300 300 250 170 150 250 FASTEST WIND SPEED (KNOTS) 16 16 19 21 19 19 14 14 16 29 19 29 29 DAY 14 9 6 18 8 23 2 17 22 1 30 12 DAYS WITH SKY CLEAR (0-2)/8 7 11 9 8 16 25 30 31 28 19 19 9 212 DAYS WITH P.CLOUDY (3-6)/8 9 10 11 15 12 3 1 0 2 6 8 8 85 DAYS WITH CLOUDY (7-8)/8 15 7 11 7 3 2 0 0 0 6 3 14 68 DAYS WITH VISIBILITY =< 2 KM 7 0 1 0 4 0 0 1 0 0 0 2 15 DURATION OF SUNSHINE HOURS 75.1 194.1 202.3 241.8 295.3 326.5 338.1 321.2 293.9 224.6 230.2 119.6 2862.7 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1002.4 1002.7 998.4 996.2 992.6 986.3 982.8 984.8 991.8 998.7 1002.6 1002.3 995.1 MAX. QFE PRESSURE IN HPA 1010.7 1011.4 1004.7 1002.6 996.4 993.8 989.6 990.2 998.6 1005.0 1007.5 1008.0 1011.4 DAY-HOUR 28- 6 15- 9 8- 6 19- 6 24- 6 1- 6 2- 6 31- 6 29- 6 18- 6 27- 6 6- 6 MIN. QFE PRESSURE IN HPA 994.8 993.6 991.8 991.0 987.5 979.2 978.0 979.5 985.3 993.0 995.5 994.2 978.0 DAY-HOUR 25-12 28-12 24-12 29-15 28-15 19-12 13-15 1-15 3-15 14-12 4-15 31-12 MEAN QNH PRESSURE IN HPA 1020.2 1020.4 1016.1 1013.9 1010.2 1003.8 1000.2 1002.2 1009.4 1016.4 1020.4 1020.1 1012.8 MAX. QNH PRESSURE IN HPA 1028.6 1029.3 1022.5 1020.4 1014.1 1011.4 1007.2 1007.8 1016.3 1022.8 1025.3 1025.8 1029.3 DAY-HOUR 28- 6 15- 9 8- 6 19- 6 24- 6 1- 6 2- 6 31- 6 29- 6 18- 6 27- 6 6- 6 MIN. QNH PRESSURE IN HPA 1012.4 1011.2 1009.4 1008.6 1005.0 996.6 995.4 996.9 1002.8 1010.6 1013.2 1011.8 995.4 DAY-HOUR 25-12 28-12 24-12 29-15 28-15 19-12 13-15 1-15 3-15 14-12 4-15 31-12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1002.3 1002.6 998.3 996.4 992.7 986.9 983.4 985.4 992.2 998.7 1002.7 1002.5 995.3 MAX. QFE PRESSURE IN HPA 1009.4 1010.3 1003.4 1001.0 995.0 992.4 987.8 989.2 998.0 1002.8 1006.5 1006.6 1010.3 DAY 28 16 8 14 9 1 2 31 29 18 27 30 MIN. QFE PRESSURE IN HPA 997.0 996.0 992.3 992.0 989.0 980.3 980.3 981.7 987.2 994.0 998.0 997.0 980.3 DAY 25 28 6 28 28 19 14 1 3 14 4 22 MEAN QNH PRESSURE IN HPA 1020.0 1020.4 1016.0 1014.1 1010.4 1004.4 1000.9 1002.9 1009.8 1016.4 1020.4 1020.2 1013.0 MAX. QNH PRESSURE IN HPA 1027.3 1028.2 1021.2 1018.7 1012.6 1010.0 1005.3 1006.8 1015.7 1020.6 1024.3 1024.4 1028.2 DAY 28 16 8 14 9 1 2 31 29 18 27 30 MIN. QNH PRESSURE IN HPA 1014.7 1013.7 1009.9 1009.6 1006.6 997.7 997.7 999.2 1004.7 1011.6 1015.7 1014.7 997.7 DAY 25 28 6 28 28 19 14 1 3 14 4 22 MEAN QFF PRESSURE IN HPA 1020.4 1020.7 1016.0 1013.7 1009.7 1003.4 999.8 1001.8 1009.1 1015.9 1020.3 1020.5 1012.6 MAX. QFF PRESSURE IN HPA 1028.0 1028.5 1021.6 1018.7 1012.2 1009.2 1004.2 1005.9 1015.0 1020.1 1024.5 1025.0 1028.5 DAY 28 16 8 14 24 1 2 31 29 18 27 30 MIN. QFF PRESSURE IN HPA 1015.0 1013.8 1010.0 1009.0 1005.7 996.5 996.6 998.0 1003.7 1010.9 1015.3 1014.9 996.5 DAY 25 28 23 28 28 19 14 1 3 14 4 22 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1003.6 1003.9 999.7 997.7 993.8 987.5 984.0 986.1 993.3 1000.1 1004.1 1003.6 996.5 MAX. QFE PRESSURE IN HPA 1010.7 1011.2 1004.7 1002.6 996.4 993.8 989.6 990.2 998.6 1005.0 1007.5 1008.0 1011.2 DAY 28 15 8 19 24 1 2 31 29 18 27 6 MIN. QFE PRESSURE IN HPA 997.3 997.0 994.0 993.0 990.0 981.0 980.3 982.4 988.2 995.4 999.5 997.8 980.3 DAY 25 28 6 28 27 19 14 1 3 14 4 25 MEAN QNH PRESSURE IN HPA 1021.4 1021.7 1017.4 1015.4 1011.4 1005.1 1001.5 1003.6 1010.9 1017.8 1021.9 1021.4 1014.1 MAX. QNH PRESSURE IN HPA 1028.6 1029.1 1022.5 1020.4 1014.1 1011.4 1007.2 1007.8 1016.3 1022.8 1025.3 1025.8 1029.1 DAY 28 15 8 19 24 1 2 31 29 18 27 6 MIN. QNH PRESSURE IN HPA 1015.0 1014.7 1011.6 1010.6 1007.6 998.4 997.7 999.9 1005.7 1013.0 1017.2 1015.5 997.7 DAY 25 28 6 28 27 19 14 1 3 14 4 25 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1002.9 1003.5 999.2 996.8 993.3 986.9 983.4 985.3 992.4 999.1 1003.0 1002.5 995.7 MAX. QFE PRESSURE IN HPA 1010.0 1011.4 1004.0 1001.5 995.8 992.0 988.5 989.4 997.4 1003.4 1006.6 1007.1 1011.4 DAY 28 15 8 19 24 1 2 30 29 18 27 23 MIN. QFE PRESSURE IN HPA 996.6 996.0 992.4 992.0 989.7 980.3 980.0 981.8 987.0 994.0 998.0 995.0 980.0 DAY 25 28 23 9 28 19 14 1 3 14 4 25 MEAN QNH PRESSURE IN HPA 1020.6 1021.2 1016.9 1014.5 1011.0 1004.4 1000.9 1002.8 1010.0 1016.8 1020.8 1020.2 1013.3 MAX. QNH PRESSURE IN HPA 1027.9 1029.3 1021.8 1019.2 1013.5 1009.6 1006.0 1007.0 1015.1 1021.2 1024.4 1024.9 1029.3 DAY 28 15 8 19 24 1 2 30 29 18 27 23 MIN. QNH PRESSURE IN HPA 1014.3 1013.7 1010.0 1009.6 1007.3 997.7 997.4 999.3 1004.5 1011.6 1015.7 1012.6 997.4 DAY 25 28 23 9 28 19 14 1 3 14 4 25 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1001.5 1001.6 997.4 995.3 991.8 985.5 981.9 983.7 990.6 997.8 1001.6 1001.3 994.2 MAX. QFE PRESSURE IN HPA 1008.0 1010.0 1002.2 1000.0 994.7 990.6 986.8 987.6 995.2 1001.2 1005.0 1006.0 1010.0 DAY 28 15 17 13 24 22 2 31 29 1 26 29 MIN. QFE PRESSURE IN HPA 994.8 993.6 991.8 991.8 988.2 979.2 979.0 979.8 985.6 993.0 996.0 994.2 979.0 DAY 25 28 24 27 27 19 13 1 3 14 4 31 MEAN QNH PRESSURE IN HPA 1019.2 1019.4 1015.0 1012.9 1009.4 1003.0 999.4 1001.2 1008.2 1015.5 1019.3 1019.0 1011.8 MAX. QNH PRESSURE IN HPA 1025.8 1027.9 1020.0 1017.7 1012.3 1008.2 1004.3 1005.1 1012.9 1018.9 1022.8 1023.8 1027.9 DAY 28 15 17 13 24 22 2 31 29 1 26 29 MIN. QNH PRESSURE IN HPA 1012.4 1011.2 1009.4 1009.4 1005.7 996.6 996.4 997.2 1003.1 1010.6 1013.7 1011.8 996.4 DAY 25 28 24 27 27 19 13 1 3 14 4 31 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1001.9 1001.8 997.3 994.9 991.4 984.8 981.2 983.3 990.5 997.8 1001.8 1002.0 994.1 MAX. QFE PRESSURE IN HPA 1008.0 1010.0 1002.0 1000.0 994.1 990.0 986.0 987.4 996.5 1002.0 1006.0 1007.0 1010.0 DAY 28 15 8 13 8 22 2 31 29 19 26 29 MIN. QFE PRESSURE IN HPA 995.6 994.2 992.0 991.0 987.5 979.2 978.0 979.5 985.3 993.0 995.5 995.4 978.0 DAY 25 28 24 29 28 19 13 1 3 14 4 31 MEAN QNH PRESSURE IN HPA 1019.6 1019.5 1015.0 1012.5 1009.0 1002.3 998.7 1000.8 1008.1 1015.5 1019.6 1019.7 1011.7 MAX. QNH PRESSURE IN HPA 1025.8 1027.9 1019.7 1017.7 1011.7 1007.6 1003.5 1004.9 1014.2 1019.7 1023.8 1024.8 1027.9 DAY 28 15 8 13 8 22 2 31 29 19 26 29 MIN. QNH PRESSURE IN HPA 1013.3 1011.8 1009.6 1008.6 1005.0 996.6 995.4 996.9 1002.8 1010.6 1013.2 1013.0 995.4 DAY 25 28 24 29 28 19 13 1 3 14 4 31 MEAN QFF PRESSURE IN HPA 1020.0 1019.9 1015.0 1012.1 1008.3 1001.3 997.6 999.7 1007.3 1015.0 1019.5 1020.0 1011.3 MAX. QFF PRESSURE IN HPA 1026.5 1028.3 1020.1 1017.6 1011.2 1006.5 1002.4 1004.1 1013.4 1019.3 1024.0 1025.3 1028.3 DAY 28 15 8 13 24 22 2 31 29 19 26 29 MIN. QFF PRESSURE IN HPA 1013.7 1011.9 1009.5 1007.9 1004.3 995.4 994.2 995.8 1001.8 1009.9 1012.7 1013.4 994.2 DAY 25 28 24 29 28 19 13 1 3 14 4 31 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAMHORMOZ (40813) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 31 16 N LONGITUDE 49 36 E DATA PROCESSING CENTER ELEVATION 150.5 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 10.0 12.9 15.9 24.1 31.5 37.4 38.3 38.2 35.4 28.5 20.7 13.3 25.5 MINIMUN AIR TEMPERATURE (C) 5.5 7.3 9.6 16.0 22.6 27.1 28.2 28.7 25.1 19.2 14.4 9.5 17.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 4 25 30 31 31 28 6 0 0 155 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) 0.0 0.2 2.8 10.8 19.0 23.6 24.8 26.4 19.0 14.8 2.2 3.0 0.0 DAY 6 13 1 7 11 21 13 26 29 28 28 29 MAXIMUM AIR TEMPERATURE (C) 13.8 17.3 20.3 29.2 36.7 42.8 44.6 44.3 41.7 34.8 25.6 16.8 30.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 13 31 30 31 31 30 31 4 0 201 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.6 24.4 25.0 35.0 42.4 45.2 48.2 47.8 45.0 39.8 31.8 26.8 48.2 DAY 10 24 29 26 30 29 17 17 2 4 1 2 DIF. BETWEEN (MAX.-MIN.) (C) 8.3 10.0 10.7 13.2 14.1 15.7 16.4 15.6 16.6 15.6 11.2 7.3 12.9 MEAN DAILY TEMP. (MDT) (C) 9.7 12.3 15.0 22.6 29.7 34.9 36.4 36.5 33.4 27.0 20.0 13.1 24.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 67.8 268.9 417.4 478.4 480.9 373.2 186.2 26.0 0.0 2298.8 HEATING DEG. DAYS(BASE 18 0C) 258.7 168.2 98.1 1.3 0.0 0.0 0.0 0.0 0.0 0.0 30.7 154.9 711.9 DEWPOINT (MEAN C) 4.8 4.6 6.6 8.8 8.4 7.2 10.6 13.1 9.1 7.1 8.9 9.2 8.2 MIXING RATIO (G/KG) 5.55 5.64 6.48 7.33 7.19 6.60 8.31 9.78 7.52 6.49 7.50 7.44 7.15 VAPOUR PRESSURE (HPA) 8.88 9.00 10.29 11.60 11.35 10.36 12.97 15.26 11.85 10.31 11.93 11.85 11.30 SATURATION DEF. (HPA) 3.77 6.41 8.40 19.53 36.75 55.66 57.41 54.19 48.27 30.14 13.75 3.91 28.18 RELATIVE HUMIDITY (MEAN %) 72 61 58 40 26 17 20 24 22 28 50 78 41 RELATIVE HUMIDITY (MAX. %) 89 82 78 61 43 28 33 36 33 38 66 91 57 RELATIVE HUMIDITY (MIN. %) 55 41 41 25 17 11 13 16 14 18 37 64 29 RELATIVE HUMIDITY (MEAN% 03UTC) 85 79 75 58 43 28 33 36 32 38 64 88 55 RELATIVE HUMIDITY (MEAN% 09UTC) 63 53 51 33 20 14 17 19 17 21 42 71 35 RELATIVE HUMIDITY (MEAN% 15UTC) 74 60 54 39 21 14 16 20 20 28 50 80 40 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 56.9 53.6 53.2 1.5 2.2 0.0 0.0 0.0 0.0 0.0 21.4 120.9 309.7 DAYS WITH PRECIPITATION >=10 2 2 2 0 0 0 0 0 0 0 1 4 11 DAYS WITH PRECIPITATION >= 5 4 2 4 0 0 0 0 0 0 0 1 8 19 DAYS WITH PRECIPITATION >= 1 7 3 6 1 1 0 0 0 0 0 6 8 32 DAYS WITH PRECIPITATION 9 9 8 5 3 0 0 0 0 0 8 12 54 GREATEST DAILY PRECIPITATION 22.0 36.0 23.0 1.1 2.0 0.0 0.0 0.0 0.0 0.0 11.0 43.0 43.0 DAY 21 25 18 25 9