Station Name: Aberporth WMO Station Number: 03502 National I.D. Number: Country: UNITED KINGDOM OF GREAT BRITAIN & NORTHERN IRELAND WMO Region: REGION VI - EUROPE Latitude: 52d 08m N Longitude: 004d 34m W Elevation: 133 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: 1961 eyr: 1990 Month ------------------ Jan 4.8 Feb 4.5 Mar 5.9 Apr 7.6 May 10.4 Jun 13.0 Jul 14.7 Aug 14.9 Sep 13.3 Oct 11.0 Nov 7.5 Dec 5.8 Annual 9.4 Ann-NCDC 9.5 ------------------ Element 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MAX_VAL (Statistic 04): Maximum Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN MAX_VAL Month -------------------------- Jan 7.0 13.4 Feb 6.9 15.2 Mar 8.4 21.0 Apr 10.5 23.4 May 13.4 26.6 Jun 16.0 30.0 Jul 17.6 31.5 Aug 17.7 31.5 Sep 16.0 28.6 Oct 13.5 22.0 Nov 9.8 17.0 Dec 8.0 14.1 Annual 12.0 31.5 Ann-NCDC 12.1 NA -------------------------- Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MIN_VAL (Statistic 05): Minimum Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN MIN_VAL Month -------------------------- Jan 2.7 -9.9 Feb 2.2 -7.5 Mar 3.4 -6.6 Apr 4.8 -2.0 May 7.4 0.1 Jun 10.0 1.7 Jul 11.9 5.6 Aug 12.1 5.5 Sep 10.6 3.3 Oct 8.5 -0.9 Nov 5.3 -3.6 Dec 3.7 -5.8 Annual 6.8 -9.9 Ann-NCDC 6.9 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: 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 84.0 17.0 49.0 78.5 92.0 112.0 203.0 Feb 57.0 0.0 30.0 46.0 63.0 89.0 151.0 Mar 61.0 14.0 37.5 50.0 66.5 81.5 165.0 Apr 52.0 8.0 21.0 48.5 63.0 72.0 120.0 May 49.0 12.0 28.0 45.0 54.0 66.0 110.0 Jun 55.0 4.0 29.5 44.5 60.5 81.0 129.0 Jul 50.0 13.0 33.5 47.0 54.0 69.0 93.0 Aug 64.0 1.0 42.0 53.0 67.0 95.0 136.0 Sep 76.0 9.0 40.5 51.0 77.0 118.5 165.0 Oct 101.0 26.0 55.5 86.0 108.0 155.5 219.0 Nov 92.0 37.0 65.0 74.5 91.0 126.0 188.0 Dec 95.0 24.0 65.0 79.0 99.0 137.0 188.0 Annual 839.0 656.0 775.0 825.0 884.0 928.0 996.0 Ann-NCDC 836.0 NA NA NA NA NA NA ------------------------------------------------------------------ Element 10: Snow Depth (cm) MN09LST (Statistic 79): Mean of Observations at 0900 LST ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 10.2 Feb 3.2 Mar 2.4 Apr 0.4 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 0.4 Dec 4.2 Annual 20.8 Ann-NCDC NA ------------------ Element 11: Relative Humidity (%) MNDLYMX (Statistic 09): Mean Daily Maximum Value MNDLYMI (Statistic 10): Mean Daily Minimum Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MNDLYMX MNDLYMI Month -------------------------- Jan 87.0 84.0 Feb 87.0 80.0 Mar 87.0 78.0 Apr 87.0 74.0 May 88.0 72.0 Jun 90.0 74.0 Jul 90.0 75.0 Aug 90.0 76.0 Sep 90.0 77.0 Oct 89.0 79.0 Nov 87.0 80.0 Dec 88.0 84.0 Annual 89.0 79.0 Ann-NCDC 88.3 77.8 -------------------------- Element 15: Sunshine MN_#HRS (Statistic 44): Mean Number of Hours ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 51.2 Feb 75.6 Mar 114.4 Apr 165.8 May 204.1 Jun 197.1 Jul 189.7 Aug 174.7 Sep 134.9 Oct 97.3 Nov 63.6 Dec 47.5 Annual 1515.9 Ann-NCDC 1515.9 ------------------ Element 16: Wind Speed (m/sec) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 8.2 Feb 7.7 Mar 7.5 Apr 6.1 May 5.7 Jun 5.1 Jul 5.0 Aug 5.5 Sep 6.3 Oct 7.0 Nov 7.7 Dec 8.1 Annual 6.6 Ann-NCDC 6.7 ------------------ Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1.0 Feb 0.0 Mar 0.0 Apr 0.0 May 1.0 Jun 1.0 Jul 1.0 Aug 1.0 Sep 1.0 Oct 1.0 Nov 1.0 Dec 0.0 Annual 8.0 Ann-NCDC 8.0 ------------------ Element 53: Number Days with Hail (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 4.0 Feb 2.0 Mar 3.0 Apr 2.0 May 1.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 1.0 Nov 3.0 Dec 3.0 Annual 19.0 Ann-NCDC 19.0 ------------------ Element 56: Number Days with Snowfall (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 2.0 Feb 3.0 Mar 2.0 Apr 1.0 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 0.0 Dec 2.0 Annual 10.0 Ann-NCDC 10.0 ------------------ Element 57: Number Days with Snow on Ground (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 2.0 Feb 1.0 Mar 0.0 Apr 0.0 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 0.0 Dec 0.0 Annual 4.0 Ann-NCDC 3.0 ------------------ Element 76: Number Days with Air Frost (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 6.0 Feb 7.0 Mar 3.0 Apr 1.0 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 1.0 Dec 4.0 Annual 23.0 Ann-NCDC 22.0 ------------------ Element 77: Number Days with Grass Frost (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 11.0 Feb 11.0 Mar 9.0 Apr 7.0 May 2.0 Jun 1.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 1.0 Nov 6.0 Dec 9.0 Annual 58.0 Ann-NCDC 57.0 ------------------ Element 95: Number Days with Precipitation GE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 0.2 mm Qualifier: 1.0 mm Qualifier: 10.0 mm ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Qualifier: 0.2 1.0 10.0 Month ---------------------------------- Jan 19.0 15.0 2.0 Feb 15.0 11.0 2.0 Mar 17.0 12.0 1.0 Apr 14.0 9.0 1.0 May 15.0 10.0 1.0 Jun 13.0 9.0 2.0 Jul 12.0 8.0 1.0 Aug 14.0 10.0 2.0 Sep 15.0 11.0 2.0 Oct 18.0 14.0 3.0 Nov 19.0 15.0 3.0 Dec 19.0 14.0 3.0 Annual 188.0 139.0 24.0 Ann-NCDC 190.0 138.0 23.0 ---------------------------------- Element AK: Number Days with Sleet/Snow (count) Statistic 15: Mean Monthly Value Qualifier: ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 4.0 Feb 5.0 Mar 3.0 Apr 1.0 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 1.0 Dec 3.0 Annual 17.0 Ann-NCDC 17.0 ------------------