Station Name: PIARCO INTL AP WMO Station Number: 78970 National I.D. Number: Country: TRINIDAD AND TOBAGO WMO Region: REGION IV - NORTH & CENTRAL AMERICA Latitude: 10d 37m N Longitude: 061d 21m W 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 ------------------ byr: 1960 eyr: 1990 Month ------------------ Jan 24.8 Feb 25.0 Mar 25.7 Apr 26.5 May 26.9 Jun 26.4 Jul 26.2 Aug 26.4 Sep 26.5 Oct 26.4 Nov 25.9 Dec 25.2 Annual NA Ann-NCDC 26.0 ------------------ Element 02: Maximum Dry Bulb Temperature (deg C) MAX_VAL (Statistic 04): Maximum Value YR_MAX (Statistic 55): Year of Occurrence of Maximum Value -------------------------- byr: 1960 1960 eyr: 1990 1990 Statistic: MAX_VAL YR_MAX Month -------------------------- Jan 33.2 1988 Feb 33.0 1988 Mar 34.9 1987 Apr 34.9 1958 May 35.3 1984 Jun 34.4 1987 Jul 33.5 1990 Aug 34.2 1989 Sep 36.5 1990 Oct 35.5 1957 Nov 33.8 1985 Dec 33.2 1990 Annual NA NA Ann-NCDC NA NA -------------------------- Element 03: Minimum Dry Bulb Temperature (deg C) MIN_VAL (Statistic 05): Minimum Value YR_MIN (Statistic 56): Year of Occurrence of Minimum Value -------------------------- byr: 1960 1960 eyr: 1990 1990 Statistic: MIN_VAL YR_MIN Month -------------------------- Jan 15.6 1955 Feb 16.1 1953 Mar 16.7 1947 Apr 17.2 1948 May 18.9 1947 Jun 19.7 1971 Jul 18.3 1948 Aug 18.9 1950 Sep 19.4 1950 Oct 19.4 1953 Nov 17.9 1956 Dec 16.7 1949 Annual NA NA Ann-NCDC NA NA -------------------------- Element 06: Precipitation (mm) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1960 eyr: 1990 Month ------------------ Jan 71.3 Feb 43.0 Mar 34.3 Apr 51.1 May 116.5 Jun 252.1 Jul 266.3 Aug 250.1 Sep 202.5 Oct 199.3 Nov 227.8 Dec 155.7 Annual NA Ann-NCDC 1870.0 ------------------ Element 11: Relative Humidity (%) MEAN (Statistic 01): Mean Value MAX_VAL (Statistic 04): Maximum Value MIN_VAL (Statistic 05): Minimum Value ---------------------------------- byr: 1960 1960 1960 eyr: 1990 1990 1990 Statistic: MEAN MAX_VAL MIN_VAL Month ---------------------------------- Jan 81.0 100.0 35.0 Feb 80.0 100.0 33.0 Mar 77.0 100.0 27.0 Apr 77.0 100.0 33.0 May 79.0 100.0 37.0 Jun 84.0 100.0 40.0 Jul 84.0 100.0 46.0 Aug 84.0 100.0 46.0 Sep 84.0 100.0 43.0 Oct 85.0 100.0 40.0 Nov 86.0 100.0 41.0 Dec 84.0 100.0 41.0 Annual NA NA NA Ann-NCDC 82.1 NA NA ---------------------------------- Element 12: Sea Level Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1960 eyr: 1990 Month ------------------ Jan 1013.7 Feb 1014.3 Mar 1013.4 Apr 1012.8 May 1013.9 Jun 1013.9 Jul 1013.9 Aug 1013.1 Sep 1012.3 Oct 1011.5 Nov 1011.3 Dec 1012.5 Annual NA Ann-NCDC 1013.0 ------------------ Element 14: Vapor Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1960 eyr: 1990 Month ------------------ Jan 25.7 Feb 25.1 Mar 24.7 Apr 27.6 May 28.5 Jun 28.4 Jul 28.4 Aug 28.6 Sep 28.7 Oct 28.7 Nov 28.2 Dec 26.6 Annual NA Ann-NCDC 27.4 ------------------ Element 15: Sunshine Statistic 44: Mean Number of Hours Qualifier: Qualifier: 06: Mean Daily Value -------------------------- byr: 1960 1960 eyr: 1990 1990 Qualifier: 06 Month -------------------------- Jan 241.3 7.8 Feb 231.3 8.2 Mar 248.3 8.0 Apr 237.5 7.9 May 233.2 7.5 Jun 183.7 6.1 Jul 205.9 6.6 Aug 212.5 6.9 Sep 197.1 6.6 Oct 207.4 6.7 Nov 197.7 6.6 Dec 214.5 6.9 Annual NA NA Ann-NCDC 2610.4 NA -------------------------- Element 16: Wind Speed (m/sec) MEAN (Statistic 01): Mean Value MAXGUST (Statistic 30): Maximum Gust -------------------------- byr: 1960 1960 eyr: 1990 1990 Statistic: MEAN MAXGUST Month -------------------------- Jan 2.8 21.1 Feb 3.2 19.4 Mar 3.4 19.4 Apr 3.6 18.1 May 3.6 20.6 Jun 3.3 22.2 Jul 2.6 20.6 Aug 2.1 24.7 Sep 2.1 22.2 Oct 2.2 18.9 Nov 2.2 18.1 Dec 2.4 20.0 Annual NA NA Ann-NCDC 2.8 NA -------------------------- Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1960 eyr: 1990 Month ------------------ Jan 7.0 Feb 0.0 Mar 0.0 Apr 1.0 May 1.0 Jun 1.0 Jul 6.0 Aug 8.0 Sep 9.0 Oct 7.0 Nov 4.0 Dec 1.0 Annual NA Ann-NCDC 45.0 ------------------ Element 58: Number Days with Fog/Ice Fog (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1960 eyr: 1990 Month ------------------ Jan 2.0 Feb 1.0 Mar 1.0 Apr 1.0 May 0.0 Jun 0.0 Jul 1.0 Aug 1.0 Sep 1.0 Oct 2.0 Nov 2.0 Dec 2.0 Annual NA Ann-NCDC 14.0 ------------------