Station Name: SEYCHELLES INTL AP WMO Station Number: 63980 National I.D. Number: Country: SEYCHELLES WMO Region: REGION I - AFRICA Latitude: 04d 40m S Longitude: 055d 31m E Elevation: 2 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 ------------------ byr: 1971 eyr: 1990 Month ------------------ Jan 26.8 Feb 27.3 Mar 27.8 Apr 28.0 May 27.7 Jun 26.6 Jul 25.8 Aug 25.9 Sep 26.4 Oct 26.7 Nov 26.8 Dec 26.7 Annual NA Ann-NCDC 26.9 ------------------ Element 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MAX_VAL (Statistic 04): Maximum Value -------------------------- byr: 1971 1971 eyr: 1990 1990 Statistic: MEAN MAX_VAL Month -------------------------- Jan 29.8 32.6 Feb 30.4 33.4 Mar 31.0 33.4 Apr 31.4 33.6 May 30.5 33.3 Jun 29.1 32.6 Jul 28.3 31.1 Aug 28.4 30.4 Sep 29.1 31.3 Oct 29.6 32.4 Nov 30.1 33.5 Dec 30.0 33.2 Annual NA NA Ann-NCDC 29.8 NA -------------------------- Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MIN_VAL (Statistic 05): Minimum Value -------------------------- byr: 1971 1971 eyr: 1990 1990 Statistic: MEAN MIN_VAL Month -------------------------- Jan 24.1 21.4 Feb 24.6 21.1 Mar 24.8 22.1 Apr 25.0 22.3 May 25.4 21.6 Jun 24.6 21.1 Jul 23.9 20.4 Aug 23.9 19.6 Sep 24.2 20.2 Oct 24.3 20.5 Nov 24.0 21.7 Dec 23.9 20.0 Annual NA NA Ann-NCDC 24.4 NA -------------------------- 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: 1971 1971 1971 1971 1971 1971 1971 eyr: 1990 1990 1990 1990 1990 1990 1990 Statistic: MEANMLY MIN_MLY QUIN20% QUIN40% QUIN60% QUIN80% MAX_MLY Month ------------------------------------------------------------------ Jan 379 167.5 289.8 343.1 410.1 460.6 609.6 Feb 262 9.1 118.4 231.1 309.8 444.2 507.4 Mar 167 55.0 111.3 155.4 174.1 212.8 344.7 Apr 177 61.8 105.3 167.7 199.5 218.2 307.1 May 124 6.7 28.7 77.1 133.5 197.9 418.4 Jun 63 15.7 42.0 56.4 66.3 75.8 157.9 Jul 80 17.6 31.6 53.4 71.8 98.5 276.9 Aug 97 15.0 24.3 72.7 104.5 148.1 371.6 Sep 121 13.0 39.3 71.5 106.0 188.6 389.6 Oct 206 28.5 52.1 157.6 262.7 302.1 564.7 Nov 215 38.5 122.8 189.1 208.3 326.2 441.2 Dec 281 57.9 226.0 247.5 273.0 323.4 560.2 Annual NA NA NA NA NA NA NA Ann-NCDC 2172.0 NA NA NA NA NA NA ------------------------------------------------------------------ Element 11: Relative Humidity (%) MEAN (Statistic 01): Mean Value ------------------ byr: 1971 eyr: 1990 Month ------------------ Jan 82 Feb 80 Mar 79 Apr 80 May 79 Jun 79 Jul 80 Aug 79 Sep 78 Oct 79 Nov 80 Dec 82 Annual NA Ann-NCDC 79.8 ------------------ Element 12: Sea Level Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1971 eyr: 1990 Month ------------------ Jan 1011.4 Feb 1011.1 Mar 1010.8 Apr 1010.4 May 1011.0 Jun 1012.1 Jul 1012.6 Aug 1012.8 Sep 1012.6 Oct 1012.3 Nov 1011.8 Dec 1011.5 Annual NA Ann-NCDC 1011.7 ------------------ Element 14: Vapor Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1971 eyr: 1990 Month ------------------ Jan 28.8 Feb 28.0 Mar 29.3 Apr 30.0 May 29.3 Jun 27.6 Jul 26.7 Aug 26.5 Sep 27.1 Oct 27.7 Nov 28.1 Dec 28.6 Annual NA Ann-NCDC 28.1 ------------------ Element 15: Sunshine MN_#HRS (Statistic 44): Mean Number of Hours ------------------ byr: 1971 eyr: 1990 Month ------------------ Jan 153.3 Feb 175.5 Mar 210.5 Apr 227.8 May 252.8 Jun 232.0 Jul 230.5 Aug 230.7 Sep 227.7 Oct 220.7 Nov 195.7 Dec 170.5 Annual NA Ann-NCDC 2527.7 ------------------ Element 20: Sky Cover (Cloud Cover) (okta) MEAN (Statistic 01): Mean Value ------------------ byr: 1971 eyr: 1990 Month ------------------ Jan 5.6 Feb 5.1 Mar 4.5 Apr 4.2 May 4.6 Jun 5.3 Jul 5.6 Aug 5.6 Sep 4.9 Oct 4.7 Nov 4.5 Dec 5.1 Annual NA Ann-NCDC 5.0 ------------------ Element 21: Pan Evaporation (mm) MEANDLY (Statistic 06): Mean Daily Value MEANMLY (Statistic 15): Mean Monthly Value -------------------------- byr: 1981 1981 eyr: 1990 1990 Statistic: MEANDLY MEANMLY Month -------------------------- Jan 4.6 142.6 Feb 5.2 145.6 Mar 5.4 167.4 Apr 5.3 159.0 May 5.4 167.4 Jun 5.1 153.0 Jul 5.4 167.4 Aug 6.0 186.0 Sep 6.3 189.0 Oct 5.8 179.8 Nov 4.8 144.0 Dec 4.4 136.4 Annual NA 1937.6 Ann-NCDC 63.7 1937.6 -------------------------- Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1971 eyr: 1990 Month ------------------ Jan 3 Feb 2 Mar 3 Apr 3 May 2 Jun * Jul * Aug * Sep 1 Oct 1 Nov 1 Dec 3 Annual NA Ann-NCDC 19.0 ------------------ Element 95: Number Days with Precipitation GE Threshold (count) Qualifier: 1.0 mm MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1971 eyr: 1990 Month ------------------ Jan 17 Feb 11 Mar 11 Apr 14 May 11 Jun 10 Jul 10 Aug 10 Sep 11 Oct 12 Nov 14 Dec 18 Annual NA Ann-NCDC 149.0 ------------------