Station Name: GUWAHATI WMO Station Number: 42410 National I.D. Number: Country: INDIA WMO Region: REGION II - ASIA Latitude: 26d 06m N Longitude: 091d 35m E Elevation: 54 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 #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1971 1971 eyr: 1990 1990 Statistic: MEAN #_YEARS Month -------------------------- Jan 17.1 20 Feb 19.0 20 Mar 22.9 19 Apr 25.3 20 May 26.7 20 Jun 28.4 20 Jul 28.5 20 Aug 28.8 20 Sep 27.9 20 Oct 26.0 20 Nov 22.2 20 Dec 18.1 20 Annual 24.2 NA Ann-NCDC 24.2 NA -------------------------- Element 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MAX_DLY (Statistic 11): Maximum Daily Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------------------------------ byr: 1971 1971 1971 1971 eyr: 1990 1990 1990 1990 Statistic: MEAN MAX_DLY DATEMAX #_YEARS Month ------------------------------------------ Jan 23.6 28.8 199030 20 Feb 26.0 32.2 197621 20 Mar 29.9 38.4 197927 19 Apr 30.7 39.0 197510 20 May 31.0 37.0 198719 20 Jun 31.9 38.3 197906 20 Jul 31.7 36.5 197310 20 Aug 32.1 36.2 198803 20 Sep 31.4 35.8 199002 20 Oct 30.2 34.3 198001 20 Nov 27.5 31.0 197604 20 Dec 24.4 28.1 197203 20 Annual 29.2 39.0 NA NA Ann-NCDC 29.2 NA NA NA ------------------------------------------ Element 02: Maximum Dry Bulb Temperature (deg C) Qualifier: 11: Maximum Daily Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1971 eyr: 1990 Month ------------------ Jan 20 Feb 20 Mar 19 Apr 20 May 20 Jun 20 Jul 20 Aug 20 Sep 20 Oct 20 Nov 20 Dec 20 Annual NA Ann-NCDC NA ------------------ Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MIN_DLY (Statistic 13): Minimum Daily Value DATEMIN (Statistic 14): Date (Year/Day) of Occurrence of Minimum Daily Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------------------------------ byr: 1971 1971 1971 1971 eyr: 1990 1990 1990 1990 Statistic: MEAN MIN_DLY DATEMIN #_YEARS Month ------------------------------------------ Jan 10.5 4.7 198306 20 Feb 11.9 5.1 198304 20 Mar 15.7 8.3 197911 19 Apr 19.9 13.0 198301 20 May 22.4 16.2 197503 20 Jun 24.8 20.4 197901 20 Jul 25.3 21.4 197808 20 Aug 25.4 22.1 197821 20 Sep 24.4 19.7 198628 20 Oct 21.9 13.6 197931 20 Nov 16.8 10.3 197130 20 Dec 11.8 6.0 198227 20 Annual 19.2 4.7 NA NA Ann-NCDC 19.2 NA NA NA ------------------------------------------ Element 03: Minimum Dry Bulb Temperature (deg C) Qualifier: 13: Minimum Daily Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1971 eyr: 1990 Month ------------------ Jan 20 Feb 20 Mar 19 Apr 20 May 20 Jun 20 Jul 20 Aug 20 Sep 20 Oct 20 Nov 20 Dec 20 Annual NA Ann-NCDC 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 #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------------------------------------------------------- byr: 1971 1961 1961 1961 1961 1961 1961 1971 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 Statistic: MEANMLY MIN_MLY QUIN20% QUIN40% QUIN60% QUIN80% MAX_MLY #_YEARS Month -------------------------------------------------------------------------- Jan 8.0 .0 .0 1.9 8.9 17.0 31.4 16 Feb 21.0 .0 1.5 10.6 21.3 35.3 55.3 17 Mar 47.0 5.4 17.0 39.8 63.3 74.3 122.0 17 Apr 181.0 40.4 103.7 145.9 163.1 200.4 413.3 16 May 226.0 62.2 139.1 210.3 238.1 270.6 569.7 17 Jun 309.0 101.0 207.6 287.5 363.1 420.0 466.3 17 Jul 377.0 180.7 245.4 322.3 370.5 435.9 646.7 17 Aug 227.0 67.3 182.4 238.7 272.8 323.8 386.4 17 Sep 199.0 27.2 112.1 144.1 189.0 259.5 351.0 17 Oct 92.0 2.6 24.9 64.4 80.3 134.6 237.0 16 Nov 25.0 .0 .8 7.7 24.8 43.5 89.1 17 Dec 10.0 .0 .0 .5 2.0 13.1 48.0 17 Annual 1704.0 1173.5 1464.8 1603.9 1723.3 1845.9 2476.6 NA Ann-NCDC 1722.0 NA NA NA NA NA NA NA -------------------------------------------------------------------------- Element 11: Relative Humidity (%) MEAN (Statistic 01): Mean Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1971 1971 eyr: 1990 1990 Statistic: MEAN #_YEARS Month -------------------------- Jan 79.0 20 Feb 65.0 20 Mar 57.0 19 Apr 68.0 20 May 75.0 20 Jun 81.0 20 Jul 83.0 20 Aug 82.0 20 Sep 83.0 20 Oct 82.0 19 Nov 82.0 20 Dec 82.0 20 Annual 77.0 NA Ann-NCDC 76.6 NA -------------------------- Element 12: Sea Level Pressure (hPa) MEAN (Statistic 01): Mean Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1971 1971 eyr: 1990 1990 Statistic: MEAN #_YEARS Month -------------------------- Jan 1015.7 20 Feb 1013.1 20 Mar 1010.0 19 Apr 1007.0 20 May 1004.6 20 Jun 1000.4 20 Jul 1000.7 20 Aug 1001.6 20 Sep 1005.8 20 Oct 1010.3 19 Nov 1014.0 20 Dec 1016.3 20 Annual 1008.3 NA Ann-NCDC 1008.3 NA -------------------------- Element 14: Vapor Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1971 eyr: 1990 Month ------------------ Jan 15.5 Feb 15.0 Mar 16.8 Apr 22.6 May 27.4 Jun 31.7 Jul 32.7 Aug 32.7 Sep 31.4 Oct 28.2 Nov 22.2 Dec 17.3 Annual 24.5 Ann-NCDC 24.5 ------------------ Element 15: Sunshine MN_#HRS (Statistic 44): Mean Number of Hours #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1971 1971 eyr: 1990 1990 Statistic: MN_#HRS #_YEARS Month -------------------------- Jan 225.5 19 Feb 213.8 20 Mar 220.1 19 Apr 200.6 20 May 191.1 18 Jun 133.1 19 Jul 123.7 17 Aug 161.6 18 Sep 139.0 20 Oct 205.8 20 Nov 230.9 20 Dec 231.7 19 Annual 2276.9 NA Ann-NCDC 2276.9 NA -------------------------- Element 16: Wind Speed (m/sec) MEAN (Statistic 01): Mean Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1971 1971 eyr: 1990 1990 Statistic: MEAN #_YEARS Month -------------------------- Jan .6 20.0 Feb .8 20.0 Mar 1.1 19.0 Apr 1.7 20.0 May 1.1 20.0 Jun 1.1 20.0 Jul .8 20.0 Aug .8 20.0 Sep .8 20.0 Oct .8 20.0 Nov .8 20.0 Dec .6 20.0 Annual .9 NA Ann-NCDC 0.9 NA -------------------------- 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 1.4 Feb 2.8 Mar 5.2 Apr 12.5 May 15.1 Jun 16.6 Jul 20.0 Aug 15.4 Sep 13.3 Oct 5.9 Nov 2.2 Dec .9 Annual 110.6 Ann-NCDC 111.3 ------------------ Element BT: Number Days with Occurrence of Rain (count) #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1971 eyr: 1990 Month ------------------ Jan 16 Feb 17 Mar 17 Apr 16 May 17 Jun 17 Jul 17 Aug 17 Sep 17 Oct 16 Nov 17 Dec 17 Annual NA Ann-NCDC 201.0 ------------------