Station Name: BYRD STATION WMO Station Number: 89125 National I.D. Number: 00068201 Country: UNITED STATES OF AMERICA (ANTARCTIC STATIONS) WMO Region: STATIONS IN THE ANTARCTIC Latitude: 80d 01m S Longitude: 119d 32m W Elevation: 1543 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: 1988 Month ------------------ Jan -14.6 Feb -20.1 Mar -27.5 Apr -30.0 May -33.1 Jun -34.4 Jul -35.4 Aug -36.3 Sep -37.3 Oct -31.5 Nov -21.9 Dec -15.4 Annual -28.1 Ann-NCDC -28.1 ------------------ Element 02: Maximum Dry Bulb Temperature (deg C) MAX_DLY (Statistic 11): Maximum Daily Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value -------------------------- byr: 1961 1961 eyr: 1986 1988 Statistic: MAX_DLY DATEMAX Month -------------------------- Jan 5.0 198817 Feb -3.3 196101 Mar -8.9 196401 Apr -8.3 196308 May -8.3 196918 Jun -10.6 196513 Jul -12.2 196612 Aug -13.9 196627 Sep -10.0 196626 Oct -12.8 196331 Nov -6.1 198727 Dec 1.1 198701 Annual NA NA Ann-NCDC 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: 1961 eyr: 1988 Month ------------------ Jan 19 Feb 9 Mar 8 Apr 9 May 9 Jun 9 Jul 8 Aug 9 Sep 9 Oct 9 Nov 16 Dec 20 Annual NA Ann-NCDC NA ------------------ Element 03: Minimum Dry Bulb Temperature (deg C) MIN_DLY (Statistic 13): Minimum Daily Value DATEMIN (Statistic 14): Date (Year/Day) of Occurrence of Minimum Daily Value -------------------------- byr: 1961 1961 eyr: 1986 1988 Statistic: MIN_DLY DATEMIN Month -------------------------- Jan -28.9 197228 Feb -40.0 196928 Mar -51.1 196524 Apr -56.7 196325 May -61.7 196519 Jun -61.1 196917 Jul -60.6 196329 Aug -62.2 196412 Sep -62.2 196208 Oct -58.3 196103 Nov -43.3 198604 Dec -34.4 197208 Annual NA NA Ann-NCDC 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: 1961 eyr: 1988 Month ------------------ Jan 19 Feb 9 Mar 8 Apr 9 May 9 Jun 9 Jul 8 Aug 9 Sep 9 Oct 9 Nov 16 Dec 20 Annual NA Ann-NCDC NA ------------------ Element 06: Precipitation (mm) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1988 Month ------------------ Jan 6 Feb 4 Mar 2 Apr 1 May 5 Jun 3 Jul 2 Aug 1 Sep Trace Oct 1 Nov 2 Dec 3 Annual 30 Ann-NCDC 30.0 ------------------ Element 08: Maximum 24-Hour Precipitation (mm) 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: 1961 1961 1961 eyr: 1988 1988 1988 Statistic: MAX_DLY DATEMAX #_YEARS Month ---------------------------------- Jan 5.3 197418 19 Feb 10.2 196112 9 Mar 2.5 196201 8 Apr 2.5 196126 9 May 7.6 196131 9 Jun 4.3 196906 9 Jul 2.5 196130 8 Aug 2.3 196404 9 Sep .3 196727 9 Oct .8 196817 9 Nov 7.4 196710 17 Dec 3.3 198124 20 Annual NA NA NA Ann-NCDC NA NA NA ---------------------------------- Element 09: Snowfall (cm) MEDIAN (Statistic 02): Median Value MAX_DLY (Statistic 11): Maximum Daily Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value MEANMLY (Statistic 15): Mean Monthly Value QUAR25% (Statistic 58): First Quartile QUAR75% (Statistic 59): Third Quartile #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------------------------------------------------------ byr: 1961 1961 1961 1961 1961 1961 1961 eyr: 1988 1988 1988 1988 1988 1988 1988 Statistic: MEDIAN MAX_DLY DATEMAX MEANMLY QUAR25% QUAR75% #_YEARS Month ------------------------------------------------------------------ Jan 5.1 5.3 197418 6.3 0.3 10.4 19 Feb 3.0 10.2 196112 5.3 1.5 8.1 9 Mar 2.3 2.5 196201 2.0 1.3 2.5 8 Apr 0.5 2.5 196126 1.3 Trace 2.8 9 May 1.8 7.6 196131 5.1 Trace 9.9 9 Jun 1.0 4.3 196906 3.3 0.3 5.8 9 Jul 0.8 2.5 196130 2.3 Trace 2.5 8 Aug 0.3 2.3 196404 1.3 Trace 2.3 9 Sep Trace 0.3 196727 NA Trace 0.3 9 Oct 0.3 0.8 196817 0.8 Trace 1.5 9 Nov Trace 7.4 196710 2.3 Trace 2.8 17 Dec 1.3 3.6 198124 3.0 Trace 4.6 20 Annual NA NA NA NA NA NA NA Ann-NCDC NA NA NA NA NA NA NA ------------------------------------------------------------------ Element 16: Wind Speed (m/sec) MN3HRLY (Statistic 94): Mean of 3-Hourly Observations ------------------ byr: 1961 eyr: 1973 Month ------------------ Jan 7.4 Feb 8.6 Mar 9.3 Apr 11.8 May 11.6 Jun 12.9 Jul 12.9 Aug 12.5 Sep 12.2 Oct 11.5 Nov 9.8 Dec 7.6 Annual 10.7 Ann-NCDC NA ------------------ Element 17: Wind Direction (degrees) Statistic 38: Frequency Qualifier: 000.0 degrees Qualifier: 022.5 degrees Qualifier: 045.0 degrees Qualifier: 067.5 degrees Qualifier: 090.0 degrees Qualifier: 112.5 degrees Qualifier: 135.0 degrees Qualifier: 157.5 degrees Qualifier: 180.0 degrees ---------------------------------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1973 1973 1973 1973 1973 1973 1973 1973 1973 Qualifier: 000.0 022.5 045.0 067.5 090.0 112.5 135.0 157.5 180.0 Month ---------------------------------------------------------------------------------- Jan .033 .199 .126 .043 .016 .007 .008 .014 .020 Feb .017 .217 .177 .058 .022 .003 .005 .002 .013 Mar .012 .207 .105 .064 .013 .002 .002 .000 .006 Apr .009 .321 .170 .054 .005 .001 .001 .002 .008 May .015 .308 .162 .074 .024 .002 .003 .001 .004 Jun .009 .265 .151 .102 .046 .011 .002 .002 .002 Jul .010 .264 .197 .092 .019 .006 .005 .001 .000 Aug .006 .292 .156 .020 .009 .003 .002 .002 .002 Sep .008 .380 .222 .043 .011 .006 .002 .002 .001 Oct .008 .276 .192 .072 .017 .002 .002 .002 .005 Nov .012 .237 .150 .036 .009 .005 .007 .003 .011 Dec .036 .188 .097 .034 .014 .005 .005 .006 .018 Annual .017 .252 .153 .054 .017 .005 .004 .004 .009 Ann-NCDC NA NA NA NA NA NA NA NA NA ---------------------------------------------------------------------------------- Element 17: Wind Direction (degrees) Statistic 38: Frequency Qualifier: 202.5 degrees Qualifier: 225.0 degrees Qualifier: 247.5 degrees Qualifier: 270.0 degrees Qualifier: 292.5 degrees Qualifier: 315.0 degrees Qualifier: 337.5 degrees Qualifier: 360.0 degrees -------------------------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1973 1973 1973 1973 1973 1973 1973 1973 Qualifier: 202.5 225.0 247.5 270.0 292.5 315.0 337.5 360.0 Month -------------------------------------------------------------------------- Jan .018 .014 .014 .029 .031 .058 .124 .247 Feb .009 .010 .011 .027 .031 .051 .101 .246 Mar .008 .020 .013 .029 .032 .084 .127 .277 Apr .009 .010 .009 .021 .030 .053 .081 .218 May .002 .008 .006 .020 .017 .038 .083 .234 Jun .010 .010 .012 .021 .045 .056 .064 .192 Jul .001 .006 .007 .013 .017 .030 .087 .244 Aug .002 .007 .005 .026 .036 .070 .119 .241 Sep .004 .011 .009 .010 .014 .033 .049 .196 Oct .005 .008 .013 .019 .025 .041 .086 .227 Nov .008 .014 .019 .022 .030 .054 .112 .271 Dec .028 .021 .030 .034 .036 .066 .111 .271 Annual .010 .012 .014 .024 .029 .054 .099 .243 Ann-NCDC NA NA NA NA NA NA NA NA -------------------------------------------------------------------------- Element 17: Wind Direction (degrees) PREVAIL (Statistic 41): Prevailing ------------------ byr: 1961 eyr: 1973 Month ------------------ Jan 360.0 Feb 360.0 Mar 360.0 Apr 22.5 May 22.5 Jun 22.5 Jul 22.5 Aug 22.5 Sep 22.5 Oct 22.5 Nov 360.0 Dec 360.0 Annual 22.5 Ann-NCDC NA ------------------ Element 61: Number Days with Haze/Smoke (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1962 eyr: 1988 Month ------------------ Jan .0 Feb NA Mar NA Apr NA May NA Jun NA Jul NA Aug NA Sep NA Oct NA Nov .0 Dec .0 Annual NA Ann-NCDC NA ------------------ Element 63: Number Days with Blowing Dust/Sand (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1962 eyr: 1988 Month ------------------ Jan .0 Feb NA Mar NA Apr NA May NA Jun NA Jul NA Aug NA Sep NA Oct NA Nov .0 Dec .0 Annual NA Ann-NCDC NA ------------------ Element 83: Number Days Maximum Temperature GE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 10.0 deg C Qualifier: 35.0 deg C -------------------------- byr: 1961 1961 eyr: 1988 1988 Qualifier: 10.0 35.0 Month -------------------------- Jan .0 .0 Feb .0 .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 .0 .0 Ann-NCDC .0 .0 -------------------------- Element 85: Number Days Minimum Temperature LE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 0.0 deg C Qualifier: 10.0 deg C -------------------------- byr: 1961 1961 eyr: 1988 1988 Qualifier: 0.0 10.0 Month -------------------------- Jan 31.0 31.0 Feb 28.0 28.0 Mar 31.0 31.0 Apr 30.0 30.0 May 31.0 31.0 Jun 30.0 30.0 Jul 31.0 31.0 Aug 31.0 31.0 Sep 30.0 30.0 Oct 31.0 31.0 Nov 30.0 30.0 Dec 31.0 31.0 Annual 365.0 365.0 Ann-NCDC 365.0 365.0 -------------------------- Element 95: Number Days with Precipitation GE Threshold (count) Qualifier: 1.0 mm MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1988 Month ------------------ Jan 2.4 Feb 1.3 Mar .5 Apr .3 May 1.2 Jun 1.3 Jul .5 Aug .3 Sep .0 Oct .0 Nov .6 Dec 1.1 Annual 9.5 Ann-NCDC 9.5 ------------------ Element 98: Number Days with Blowing Snow (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1962 eyr: 1988 Month ------------------ Jan 7.9 Feb NA Mar NA Apr NA May NA Jun NA Jul NA Aug NA Sep NA Oct NA Nov 13.1 Dec 8.9 Annual NA Ann-NCDC NA ------------------ Element AB: Number Days with Snow/Hail (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1962 eyr: 1988 Month ------------------ Jan 13.8 Feb NA Mar NA Apr NA May NA Jun NA Jul NA Aug NA Sep NA Oct NA Nov 9.2 Dec 12.7 Annual NA Ann-NCDC NA ------------------ Element AC: Number Days with Fog/Mist (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1962 eyr: 1988 Month ------------------ Jan 6.9 Feb NA Mar NA Apr NA May NA Jun NA Jul NA Aug NA Sep NA Oct NA Nov 7.8 Dec 6.1 Annual NA Ann-NCDC NA ------------------ Element AD: Number Days with Weather Phenomena (count) #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1962 eyr: 1988 Month ------------------ Jan 19 Feb 13 Mar 11 Apr 12 May 12 Jun 12 Jul 11 Aug 12 Sep 12 Oct 15 Nov 16 Dec 19 Annual NA Ann-NCDC NA ------------------