Station Name: Tacubaya, D.F. WMO Station Number: 76680 National I.D. Number: Country: MEXICO WMO Region: REGION IV - NORTH & CENTRAL AMERICA Latitude: 19d 24m N Longitude: 099d 12m W Elevation: 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 13.4 Feb 14.7 Mar 17.0 Apr 18.2 May 18.6 Jun 17.4 Jul 16.2 Aug 16.4 Sep 16.3 Oct 15.5 Nov 14.9 Dec 13.5 Annual 16.0 Ann-NCDC 16.0 ------------------ Element 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 21.3 Feb 22.9 Mar 25.4 Apr 26.5 May 26.6 Jun 24.7 Jul 23.2 Aug 23.4 Sep 22.9 Oct 22.6 Nov 22.2 Dec 21.3 Annual 23.6 Ann-NCDC 23.6 ------------------ Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 6.5 Feb 7.4 Mar 9.7 Apr 11.3 May 12.2 Jun 12.5 Jul 11.8 Aug 11.9 Sep 11.9 Oct 10.4 Nov 8.4 Dec 7.2 Annual 10.1 Ann-NCDC 10.1 ------------------ 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 9 0.0 0.0 0.6 3.9 10.9 53.9 Feb 9 0.0 0.0 1.9 5.1 12.4 46.3 Mar 13 0.0 1.2 3.9 7.3 18.7 62.0 Apr 27 0.0 10.9 16.3 21.9 42.0 99.8 May 58 14.3 35.3 51.2 62.8 82.9 123.0 Jun 157 36.1 98.7 123.0 159.4 211.2 358.6 Jul 183 97.8 130.4 157.7 195.7 241.7 320.7 Aug 173 71.7 110.7 154.0 186.1 220.5 334.2 Sep 144 36.2 98.0 118.8 154.7 184.6 317.8 Oct 61 0.0 20.8 42.4 66.4 91.1 194.2 Nov 6 0.0 0.5 2.7 4.5 9.8 21.8 Dec 8 0.0 0.0 3.0 4.9 6.5 37.8 Annual 848 NA NA NA NA NA NA Ann-NCDC 848.0 NA NA NA NA NA 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 93 18 Feb 90 17 Mar 89 14 Apr 89 16 May 92 18 Jun 95 23 Jul 96 32 Aug 96 39 Sep 96 34 Oct 96 28 Nov 93 21 Dec 94 22 Annual 93 24 Ann-NCDC 93.2 23.5 -------------------------- Element 12: Sea Level Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1013.2 Feb 1012.3 Mar 1010.3 Apr 1009.6 May 1009.4 Jun 1009.4 Jul 1011.0 Aug 1010.7 Sep 1009.6 Oct 1011.3 Nov 1012.2 Dec 1013.2 Annual 1011.0 Ann-NCDC 1011.0 ------------------ Element 14: Vapor Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 8.3 Feb 8.0 Mar 8.4 Apr 9.6 May 10.9 Jun 12.4 Jul 12.9 Aug 13.1 Sep 13.0 Oct 11.6 Nov 9.6 Dec 8.9 Annual 10.6 Ann-NCDC 10.6 ------------------ Element 15: Sunshine MN_#HRS (Statistic 44): Mean Number of Hours ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 208.2 Feb 212.1 Mar 228.6 Apr 209.4 May 196.9 Jun 152.6 Jul 144.2 Aug 158.4 Sep 139.1 Oct 177.0 Nov 198.5 Dec 186.5 Annual 2211.5 Ann-NCDC 2211.5 ------------------ Element 16: Wind Speed (m/sec) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1.0 Feb 1.3 Mar 1.4 Apr 1.3 May 1.2 Jun 1.2 Jul 1.2 Aug 1.3 Sep 1.2 Oct 1.3 Nov 1.1 Dec 1.0 Annual 1.2 Ann-NCDC 1.2 ------------------ Element 21: Pan Evaporation (mm) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 118.8 Feb 135.7 Mar 202.0 Apr 196.2 May 189.8 Jun 155.6 Jul 133.9 Aug 137.8 Sep 124.4 Oct 132.4 Nov 117.2 Dec 105.5 Annual 1749.3 Ann-NCDC 1749.3 ------------------ Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1 Feb 1 Mar 2 Apr 5 May 8 Jun 9 Jul 12 Aug 12 Sep 8 Oct 5 Nov 1 Dec 1 Annual 65 Ann-NCDC 65.0 ------------------ 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 1 Jun 1 Jul 2 Aug 2 Sep 2 Oct 1 Nov 0 Dec 0 Annual 9 Ann-NCDC 9.0 ------------------ Element 76: Number Days with Air Frost (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 3 Feb 1 Mar 0 Apr 0 May 0 Jun 0 Jul 0 Aug 0 Sep 0 Oct 0 Nov 1 Dec 2 Annual 7 Ann-NCDC 7.0 ------------------ Element BJ: Number Days with Fog (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 2 Feb 1 Mar 0 Apr 0 May 2 Jun 2 Jul 2 Aug 2 Sep 2 Oct 2 Nov 2 Dec 3 Annual 20 Ann-NCDC 20.0 ------------------ Element BT: Number Days with Occurrence of Rain (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 2 Feb 2 Mar 4 Apr 9 May 13 Jun 19 Jul 24 Aug 22 Sep 19 Oct 10 Nov 3 Dec 3 Annual 130 Ann-NCDC 130.0 ------------------