Station Name: SIWA WMO Station Number: 62417 National I.D. Number: Country: EGYPT WMO Region: REGION I - AFRICA Latitude: 29d 12m N Longitude: 025d 29m E Elevation: -15 m In the following tables, byr = beginning year of normals or extremes data period eyr = ending year of normals or extremes data period NA = Not Applicable, data not submitted or not computed * = value > 0 but < units resolution Ann-NCDC = annual value computed by NCDC from monthly values provided by Members ========================================================== The normals data and climate variable descriptions are presented in these tables as provided by the WMO Member country. ========================================================== Element 01: Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MAX_VAL (Statistic 04): Maximum Value MIN_VAL (Statistic 05): Minimum Value MNDLYMX (Statistic 09): Mean Daily Maximum Value MNDLYMI (Statistic 10): Mean Daily Minimum Value -------------------------------------------------- byr: 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 Statistic: MEAN MAX_VAL MIN_VAL MNDLYMX MNDLYMI Month -------------------------------------------------- Jan 12.1 29.3 -2.2 19.3 5.6 Feb 14.0 34.6 -1.3 21.5 7.1 Mar 17.3 41.6 .3 24.5 10.1 Apr 21.9 44.8 5.7 29.9 13.7 May 25.8 48.0 7.5 34.0 17.8 Jun 29.2 48.2 14.0 37.5 20.4 Jul 29.9 45.2 17.5 37.5 21.7 Aug 29.4 46.2 15.9 37.0 21.4 Sep 27.1 42.8 11.7 34.6 19.5 Oct 22.8 41.9 7.8 30.5 15.5 Nov 17.3 37.5 2.9 25.0 10.2 Dec 13.2 29.0 -.7 20.5 6.5 Annual NA NA NA 29.3 14.6 Ann-NCDC 21.7 NA NA 29.3 14.1 -------------------------------------------------- Element 05: Dew Point Temperature (deg C) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 2.8 Feb 2.7 Mar 4.7 Apr 5.5 May 7.5 Jun 9.8 Jul 12.5 Aug 13.5 Sep 13.2 Oct 11.5 Nov 7.7 Dec 4.4 Annual NA Ann-NCDC 8.0 ------------------ Element 06: Precipitation (mm) MEANMLY (Statistic 15): Mean Monthly Value MIN_MLY (Statistic 20): Minimum Monthly Value QUIN20% (Statistic 22): First Quintile QUIN40% (Statistic 23): Second Quintile QUIN60% (Statistic 24): Third Quintile QUIN80% (Statistic 25): Fourth Quintile MAX_MLY (Statistic 26): Maximum Monthly Value ------------------------------------------------------------------ byr: 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 Statistic: MEANMLY MIN_MLY QUIN20% QUIN40% QUIN60% QUIN80% MAX_MLY Month ------------------------------------------------------------------ Jan 2.0 .0 .0 .5 1.7 3.2 18.7 Feb 1.0 .0 .0 .0 .5 3.3 8.3 Mar 2.0 .0 .0 .0 1.0 3.4 22.7 Apr 1.0 .0 .0 .0 .0 .7 13.9 May 0.0 .0 .0 .0 .0 .0 2.5 Jun 0.0 .0 .0 .0 .0 .0 .0 Jul 0.0 .0 .0 .0 .0 .0 .0 Aug 0.0 .0 .0 .0 .0 .0 1.9 Sep 0.0 .0 .0 .0 .0 .0 2.6 Oct 0.0 .0 .0 .0 .0 .1 7.0 Nov 2.0 .0 .0 .0 .0 .7 25.4 Dec 1.0 .0 .0 .0 .2 4.1 9.7 Annual 9.0 NA NA NA NA NA NA Ann-NCDC 9.0 NA NA NA NA NA NA ------------------------------------------------------------------ Element 11: Relative Humidity (%) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 56.0 Feb 50.0 Mar 46.0 Apr 38.0 May 34.0 Jun 33.0 Jul 37.0 Aug 41.0 Sep 44.0 Oct 50.0 Nov 56.0 Dec 59.0 Annual NA Ann-NCDC 45.3 ------------------ Element 12: Sea Level Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1019.3 Feb 1017.6 Mar 1015.8 Apr 1013.6 May 1012.7 Jun 1011.9 Jul 1010.1 Aug 1010.7 Sep 1013.4 Oct 1015.9 Nov 1018.2 Dec 1019.1 Annual NA Ann-NCDC 1014.9 ------------------ Element 14: Vapor Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 7.8 Feb 7.8 Mar 9.0 Apr 9.3 May 10.9 Jun 12.5 Jul 15.3 Aug 16.1 Sep 15.4 Oct 13.5 Nov 10.8 Dec 8.9 Annual NA Ann-NCDC 11.4 ------------------ Element 15: Sunshine MN_#HRS (Statistic 44): Mean Number of Hours ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 230.7 Feb 248.4 Mar 270.3 Apr 289.2 May 318.8 Jun 338.4 Jul 353.5 Aug 363.0 Sep 315.6 Oct 294.0 Nov 265.5 Dec 252.8 Annual NA Ann-NCDC 3540.2 ------------------ Element 16: Wind Speed (m/sec) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 3.0 Feb 3.7 Mar 3.7 Apr 3.9 May 3.3 Jun 2.7 Jul 2.6 Aug 2.4 Sep 2.4 Oct 2.2 Nov 2.1 Dec 2.6 Annual NA Ann-NCDC 2.9 ------------------ Element 17: Wind Direction (degrees) Statistic 38: Frequency Qualifier: 000.0 degrees Qualifier: 030.0 degrees Qualifier: 060.0 degrees Qualifier: 090.0 degrees Qualifier: 120.0 degrees Qualifier: 150.0 degrees Qualifier: 180.0 degrees Qualifier: 210.0 degrees Qualifier: 240.0 degrees ---------------------------------------------------------------------------------- byr: 1973 1973 1973 1973 1973 1973 1973 1973 1973 eyr: 1991 1991 1991 1991 1991 1991 1991 1991 1991 Qualifier: 000.0 030.0 060.0 090.0 120.0 150.0 180.0 210.0 240.0 Month ---------------------------------------------------------------------------------- Jan .059 .034 .041 .057 .067 .054 .048 .057 .105 Feb .048 .040 .055 .084 .087 .062 .058 .053 .071 Mar .028 .061 .070 .122 .122 .066 .039 .036 .056 Apr .039 .092 .100 .148 .120 .057 .038 .034 .033 May .028 .123 .140 .151 .115 .065 .032 .023 .024 Jun .029 .155 .122 .108 .070 .036 .020 .019 .029 Jul .023 .189 .112 .062 .023 .010 .800 .012 .030 Aug .026 .173 .104 .061 .025 .900 .011 .014 .028 Sep .042 .156 .128 .085 .045 .027 .022 .024 .034 Oct .067 .113 .117 .094 .074 .039 .033 .036 .044 Nov .087 .058 .060 .070 .079 .060 .049 .053 .075 Dec .090 .036 .047 .061 .068 .056 .055 .059 .093 Annual NA NA NA NA NA NA NA NA NA Ann-NCDC NA NA NA NA NA NA NA NA NA ---------------------------------------------------------------------------------- Element 17: Wind Direction (degrees) Statistic 38: Frequency Qualifier: 270.0 degrees Qualifier: 300.0 degrees Qualifier: 330.0 degrees Qualifier: 360.0 degrees Qualifier: 999.0 degrees -------------------------------------------------- byr: 1973 1973 1973 1973 1973 eyr: 1991 1991 1991 1991 1991 Qualifier: 270.0 300.0 330.0 360.0 999.0 Month -------------------------------------------------- Jan .212 .155 .081 .028 .300 Feb .170 .144 .093 .032 .300 Mar .120 .143 .099 .034 .500 Apr .068 .116 .099 .052 .400 May .049 .085 .104 .057 .500 Jun .064 .104 .147 .093 .400 Jul .067 .141 .215 .105 .300 Aug .077 .147 .214 .108 .300 Sep .063 .123 .167 .079 .600 Oct .080 .124 .120 .054 .600 Nov .142 .137 .091 .034 .500 Dec .176 .153 .076 .028 .500 Annual NA NA NA NA NA Ann-NCDC NA NA NA NA NA -------------------------------------------------- Element 20: Sky Cover (Cloud Cover) (okta) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1.1 Feb 1.0 Mar 1.0 Apr .8 May .9 Jun .2 Jul .1 Aug .1 Sep .2 Oct .5 Nov .8 Dec .9 Annual NA Ann-NCDC 0.6 ------------------ Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .0 Feb .0 Mar .1 Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .0 Dec .1 Annual NA Ann-NCDC 0.2 ------------------ Element 53: Number Days with Hail (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .0 Feb .0 Mar .0 Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .0 Dec .0 Annual NA Ann-NCDC 0.0 ------------------ Element 54: Number Days with Rainfall GE Threshold (count) Qualifier: 1.0 mm MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 0.3 Feb 0.1 Mar 0.1 Apr 0.2 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 0.1 Dec 0.2 Annual NA Ann-NCDC 1.0 ------------------ Element 61: Number Days with Haze/Smoke (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .2 Feb .8 Mar 1.1 Apr 2.0 May .7 Jun .8 Jul .5 Aug .4 Sep .0 Oct .2 Nov .3 Dec .2 Annual NA Ann-NCDC 7.2 ------------------ Element 82: Number Days with Gale Force Winds (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .0 Feb .1 Mar .2 Apr .1 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .0 Dec .0 Annual NA Ann-NCDC 0.4 ------------------ Element AE: Number Days with Ice Storm (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .0 Feb .0 Mar .0 Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .0 Dec .0 Annual NA Ann-NCDC 0.0 ------------------ Element AF: Number Days with Thick Haze (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .0 Feb .0 Mar .0 Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .0 Dec .0 Annual NA Ann-NCDC 0.0 ------------------ Element AG: Number Days with Rising Sand (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 3.7 Feb 4.7 Mar 6.5 Apr 7.8 May 4.4 Jun 2.7 Jul 2.3 Aug 1.5 Sep .7 Oct 1.2 Nov 1.3 Dec 2.5 Annual NA Ann-NCDC 39.3 ------------------ Element AH: Number Days with Mist (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .4 Feb .2 Mar .3 Apr .0 May .0 Jun .0 Jul .0 Aug .2 Sep .0 Oct .1 Nov .0 Dec .2 Annual NA Ann-NCDC 1.4 ------------------ Element AJ: Number Days with Duststorm/Sandstorm (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .3 Feb .1 Mar .1 Apr .3 May .1 Jun .6 Jul .5 Aug .0 Sep .0 Oct .0 Nov .0 Dec .0 Annual NA Ann-NCDC 2.0 ------------------ Element BJ: Number Days with Fog (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .0 Feb .0 Mar .0 Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .0 Dec .0 Annual NA Ann-NCDC 0.0 ------------------ Element BT: Number Days with Occurrence of Rain (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1.0 Feb 1.0 Mar 1.3 Apr .1 May .2 Jun .0 Jul .0 Aug .0 Sep .0 Oct .3 Nov .3 Dec .8 Annual NA Ann-NCDC 5.0 ------------------