Station Name: ST PAUL ISLAND/ARPT AK WMO Station Number: 70308 National I.D. Number: 00508118 Country: UNITED STATES OF AMERICA WMO Region: REGION IV - NORTH & CENTRAL AMERICA Latitude: 57d 09m N Longitude: 170d 13m W Elevation: 6 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: 1961 1961 eyr: 1990 1990 Statistic: MEAN #_YEARS Month -------------------------- Jan -3.0 30 Feb -5.3 30 Mar -4.3 30 Apr -2.1 30 May 1.8 30 Jun 5.3 30 Jul 7.8 30 Aug 8.7 30 Sep 7.0 30 Oct 3.2 30 Nov .6 30 Dec -1.7 30 Annual 1.5 30 Ann-NCDC 1.5 NA -------------------------- Element 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MAX_VAL (Statistic 04): Maximum 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 1961 eyr: 1990 1990 1990 1990 Statistic: MEAN MAX_VAL DATEMAX #_YEARS Month ------------------------------------------ Jan -.7 6.7 198004 30 Feb -2.8 5.0 198501 30 Mar -1.7 10.0 198018 30 Apr .4 8.9 198013 30 May 4.1 14.4 197928 30 Jun 7.7 16.1 198427 30 Jul 9.8 17.2 197719 30 Aug 10.6 18.9 198725 30 Sep 9.3 16.1 197910 30 Oct 5.6 11.7 197801 30 Nov 2.8 8.9 197914 30 Dec .7 6.7 197903 30 Annual 3.8 NA NA 30 Ann-NCDC 3.8 NA NA NA ------------------------------------------ Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MIN_VAL (Statistic 05): Minimum Value DATEMIN (Statistic 14): Date (Year/Day) of Occurrence of Minimum Daily Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------------------------------ byr: 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 Statistic: MEAN MIN_VAL DATEMIN #_YEARS Month ------------------------------------------ Jan -5.3 -25.6 197629 30 Feb -7.8 -26.1 198418 30 Mar -7.0 -28.3 197114 30 Apr -4.5 -22.2 197623 30 May -.4 -13.3 197105 30 Jun 2.8 -8.9 198503 30 Jul 5.8 -2.2 196113 30 Aug 6.9 -1.7 198115 30 Sep 4.6 -3.9 198927 30 Oct .9 -11.1 198330 30 Nov -1.7 -15.6 198826 30 Dec -4.0 -19.4 197431 30 Annual -.8 NA NA 30 Ann-NCDC -0.8 NA NA NA ------------------------------------------ Element 04: Wet Bulb Temperature (deg C) SD3HRLY (Statistic 60): Standard Deviation of 3-Hourly Values MN3HRLY (Statistic 94): Mean of 3-Hourly Observations #_YEARS (Statistic 98): Number of Years used to Calculate Normal ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Statistic: SD3HRLY MN3HRLY #_YEARS Month ---------------------------------- Jan 5.0 -3.3 21 Feb 6.1 -5.7 22 Mar 5.6 -4.5 23 Apr 4.0 -2.3 24 May 2.4 .9 23 Jun 2.1 4.4 25 Jul 1.6 7.2 24 Aug 1.4 8.1 23 Sep 2.2 6.2 22 Oct 2.8 2.3 24 Nov 3.2 -.1 23 Dec 4.0 -2.3 22 Annual 5.7 .9 14 Ann-NCDC NA .9 NA ---------------------------------- Element 05: Dew Point Temperature (deg C) SD3HRLY (Statistic 60): Standard Deviation of 3-Hourly Values MN3HRLY (Statistic 94): Mean of 3-Hourly Observations #_YEARS (Statistic 98): Number of Years used to Calculate Normal ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Statistic: SD3HRLY MN3HRLY #_YEARS Month ---------------------------------- Jan 5.8 -5.0 21 Feb 6.8 -7.4 22 Mar 6.6 -6.1 23 Apr 4.8 -3.9 24 May 2.8 -.2 23 Jun 2.2 3.5 25 Jul 1.6 6.7 24 Aug 1.6 7.6 23 Sep 2.7 5.2 22 Oct 3.7 .6 24 Nov 4.1 -1.9 23 Dec 4.9 -4.2 22 Annual 6.4 -.4 14 Ann-NCDC NA -.4 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: 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 Statistic: MEANMLY MIN_MLY QUIN20% QUIN40% QUIN60% QUIN80% MAX_MLY #_YEARS Month -------------------------------------------------------------------------- Jan 47.0 7.1 22.9 35.1 48.3 67.6 126.7 30 Feb 33.8 0.5 10.7 20.3 32.8 52.8 144.5 30 Mar 31.0 2.3 12.7 21.3 31.2 46.2 83.3 30 Apr 34.0 5.6 17.0 25.7 35.3 49.3 81.5 30 May 32.5 12.7 22.4 28.2 34.0 41.9 56.9 30 Jun 31.2 7.9 16.0 23.9 32.3 44.2 77.5 30 Jul 48.3 9.1 27.9 39.1 50.5 66.3 109.0 30 Aug 69.8 4.3 38.9 55.1 72.6 97.3 139.7 30 Sep 65.8 15.7 40.6 54.4 68.8 88.4 122.2 30 Oct 71.4 24.4 46.5 60.7 74.7 94.0 157.7 30 Nov 71.1 22.4 43.2 58.7 74.4 96.3 121.4 30 Dec 56.4 18.5 32.8 45.7 58.9 77.7 101.1 30 Annual 592.3 NA NA NA NA NA NA 30 Ann-NCDC 592.3 NA NA NA NA NA NA NA -------------------------------------------------------------------------- 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: 1990 1990 1990 Statistic: MAX_DLY DATEMAX #_YEARS Month ---------------------------------- Jan 35.1 196430 30 Feb 34.3 196404 30 Mar 26.4 197310 30 Apr 25.4 196602 30 May 19.6 196612 30 Jun 22.6 197423 30 Jul 36.3 198620 30 Aug 29.7 198701 30 Sep 36.1 198517 30 Oct 36.3 198722 30 Nov 34.3 196416 30 Dec 25.4 196107 30 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: 1990 1990 1990 1990 1990 1990 1990 Statistic: MEDIAN MAX_DLY DATEMAX MEANMLY QUAR25% QUAR75% #_YEARS Month ------------------------------------------------------------------ Jan 23.9 35.1 196430 28.7 14.7 35.3 29 Feb 19.8 34.3 196404 26.7 12.4 29.0 30 Mar 23.6 26.4 197310 25.1 14.7 31.2 30 Apr 14.2 25.4 196602 17.8 8.4 24.6 30 May 4.1 8.6 196224 6.1 1.3 8.1 30 Jun .0 2.5 196505 .3 .0 Trace 30 Jul .0 .0 199031 .0 .0 .0 30 Aug .0 .0 199031 .0 .0 .0 30 Sep .0 2.5 196530 .3 .0 Trace 30 Oct 7.1 23.6 197814 8.4 2.3 10.9 30 Nov 17.5 30.0 196416 20.8 10.2 23.6 30 Dec 22.1 17.5 196210 23.1 13.2 30.7 29 Annual NA NA NA 157.3 NA NA NA Ann-NCDC NA NA NA 157.3 NA NA NA ------------------------------------------------------------------ Element 11: Relative Humidity (%) MN00LST (Statistic 70): Mean of Observations at 0000 LST MN03LST (Statistic 73): Mean of Observations at 0300 LST MN06LST (Statistic 76): Mean of Observations at 0600 LST MN09LST (Statistic 79): Mean of Observations at 0900 LST MN12LST (Statistic 82): Mean of Observations at 1200 LST MN15LST (Statistic 85): Mean of Observations at 1500 LST MN18LST (Statistic 88): Mean of Observations at 1800 LST MN21LST (Statistic 91): Mean of Observations at 2100 LST MN3HRLY (Statistic 94): Mean of 3-Hourly Observations ---------------------------------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 1990 Statistic: MN00LST MN03LST MN06LST MN09LST MN12LST MN15LST MN18LST MN21LST MN3HRLY Month ---------------------------------------------------------------------------------- Jan 84.7 84.1 84.2 84.4 83.9 83.3 84.7 84.5 84.7 Feb 85.5 84.4 84.4 84.8 84.2 83.6 84.4 85.5 85.0 Mar 86.8 85.8 86.3 86.0 84.6 83.1 84.3 86.1 85.9 Apr 86.8 86.4 86.7 86.2 83.4 82.0 83.7 85.6 85.5 May 90.4 90.2 90.8 89.8 85.9 82.8 84.2 87.7 88.0 Jun 93.1 93.8 94.2 92.5 87.9 83.9 84.9 89.1 90.0 Jul 95.8 95.9 96.3 95.7 92.4 89.2 90.1 93.2 93.8 Aug 95.4 95.5 95.7 95.3 92.3 89.7 90.5 93.7 93.7 Sep 90.9 90.8 91.2 90.9 85.3 83.0 85.3 89.5 88.8 Oct 84.1 83.5 83.6 83.7 80.3 78.5 81.2 83.6 82.7 Nov 83.5 82.3 82.4 82.5 81.8 80.6 82.6 83.4 82.6 Dec 83.5 83.0 83.0 82.9 82.7 82.1 83.2 83.2 83.2 Annual 89.4 88.1 88.3 88.0 85.5 83.6 86.2 88.2 88.2 Ann-NCDC 88.4 88.0 88.2 87.9 85.4 83.5 84.9 87.1 87.0 ---------------------------------------------------------------------------------- Element 11: Relative Humidity (%) Statistic 98: Number of Years used to Calculate Normal Qualifier: 70: Mean of Observations at 0000 LST Qualifier: 73: Mean of Observations at 0300 LST Qualifier: 76: Mean of Observations at 0600 LST Qualifier: 79: Mean of Observations at 0900 LST Qualifier: 82: Mean of Observations at 1200 LST Qualifier: 85: Mean of Observations at 1500 LST Qualifier: 88: Mean of Observations at 1800 LST Qualifier: 91: Mean of Observations at 2100 LST Qualifier: 94: Mean of 3-Hourly Observations ---------------------------------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 1990 Qualifier: 70 73 76 79 82 85 88 91 94 Month ---------------------------------------------------------------------------------- Jan 21 30 30 30 29 30 23 23 21 Feb 22 30 30 30 29 30 24 23 22 Mar 23 30 30 30 29 30 25 24 23 Apr 24 30 30 30 29 30 26 26 24 May 25 30 30 30 29 30 24 24 23 Jun 26 30 30 30 29 30 26 26 25 Jul 25 30 30 30 29 30 25 25 24 Aug 24 30 30 30 30 30 23 23 23 Sep 23 30 30 30 30 30 22 23 22 Oct 25 30 30 30 30 30 24 24 24 Nov 23 30 30 30 30 30 24 24 23 Dec 22 30 30 30 30 30 22 22 22 Annual 14 30 30 30 29 30 17 17 14 Ann-NCDC NA NA NA NA NA NA NA NA NA ---------------------------------------------------------------------------------- Element 12: Sea Level Pressure (hPa) MN3HRLY (Statistic 94): Mean of 3-Hourly Observations #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MN3HRLY #_YEARS Month -------------------------- Jan 1003.1 21 Feb 1004.5 22 Mar 1006.7 23 Apr 1009.5 24 May 1009.3 23 Jun 1011.3 25 Jul 1013.6 24 Aug 1010.1 23 Sep 1006.9 22 Oct 1005.4 24 Nov 1002.7 23 Dec 1003.2 22 Annual 1007.9 14 Ann-NCDC 1007.2 NA -------------------------- Element 16: Wind Speed (m/sec) MN3HRLY (Statistic 94): Mean of 3-Hourly Observations ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 9.0 Feb 9.2 Mar 8.5 Apr 8.1 May 6.9 Jun 6.2 Jul 5.5 Aug 6.2 Sep 6.9 Oct 8.1 Nov 8.6 Dec 9.0 Annual 7.7 Ann-NCDC 7.7 ------------------ 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: 1990 1990 1990 1990 1990 1990 1990 1990 1990 Qualifier: 000.0 022.5 045.0 067.5 090.0 112.5 135.0 157.5 180.0 Month ---------------------------------------------------------------------------------- Jan .023 .099 .088 .090 .081 .074 .063 .053 .057 Feb .015 .136 .106 .087 .065 .062 .057 .046 .047 Mar .015 .089 .080 .088 .080 .067 .050 .044 .051 Apr .014 .058 .040 .040 .052 .053 .049 .053 .074 May .012 .055 .062 .065 .069 .060 .055 .053 .071 Jun .011 .053 .065 .060 .061 .060 .056 .057 .079 Jul .018 .029 .039 .050 .053 .068 .079 .075 .102 Aug .020 .033 .029 .029 .041 .049 .058 .064 .106 Sep .013 .060 .047 .050 .045 .044 .048 .055 .067 Oct .013 .052 .038 .047 .041 .031 .031 .034 .058 Nov .014 .085 .053 .051 .046 .046 .043 .057 .064 Dec .019 .099 .085 .085 .060 .057 .051 .054 .059 Annual NA NA NA NA NA NA NA NA NA 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: 1990 1990 1990 1990 1990 1990 1990 1990 Qualifier: 202.5 225.0 247.5 270.0 292.5 315.0 337.5 360.0 Month -------------------------------------------------------------------------- Jan .047 .037 .033 .029 .038 .040 .049 .100 Feb .026 .023 .026 .030 .035 .038 .077 .124 Mar .045 .041 .033 .035 .031 .060 .083 .108 Apr .047 .053 .046 .040 .057 .094 .121 .110 May .050 .042 .044 .043 .041 .071 .107 .102 Jun .054 .057 .056 .045 .045 .068 .096 .076 Jul .071 .069 .083 .063 .046 .061 .047 .048 Aug .085 .088 .084 .066 .053 .070 .066 .057 Sep .053 .044 .048 .053 .061 .112 .109 .091 Oct .053 .054 .058 .064 .082 .128 .119 .098 Nov .051 .058 .051 .051 .070 .093 .075 .091 Dec .053 .038 .030 .032 .036 .065 .078 .098 Annual NA NA NA NA NA NA NA NA Ann-NCDC NA NA NA NA NA NA NA NA -------------------------------------------------------------------------- Element 17: Wind Direction (degrees) PREVAIL (Statistic 41): Prevailing #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: PREVAIL #_YEARS Month -------------------------- Jan 360.0 22 Feb 22.5 23 Mar 360.0 24 Apr 337.5 24 May 337.5 24 Jun 337.5 26 Jul 180.0 25 Aug 180.0 23 Sep 315.0 22 Oct 315.0 24 Nov 315.0 23 Dec 22.5 22 Annual 360.0 NA Ann-NCDC NA NA -------------------------- Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .0 Feb .0 Mar .0 Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .0 Dec .0 Annual .0 Ann-NCDC 0.0 ------------------ Element 61: Number Days with Haze/Smoke (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan * Feb .0 Mar .1 Apr .0 May .1 Jun .0 Jul * Aug .0 Sep .0 Oct .0 Nov .0 Dec .0 Annual .2 Ann-NCDC 0.2 ------------------ Element 63: Number Days with Blowing Dust/Sand (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .0 Feb .0 Mar * Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .0 Dec .0 Annual * Ann-NCDC * ------------------ 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: 1990 1990 Qualifier: 10.0 35.0 Month -------------------------- Jan .0 .0 Feb .0 .0 Mar * .0 Apr .0 .0 May .5 .0 Jun 5.2 .0 Jul 15.8 .0 Aug 22.1 .0 Sep 12.1 .0 Oct .6 .0 Nov .0 .0 Dec .0 .0 Annual 56.3 .0 Ann-NCDC 56.3 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: 1990 1990 Qualifier: 0.0 10.0 Month -------------------------- Jan 25.0 31.0 Feb 25.7 28.0 Mar 28.5 31.0 Apr 25.7 30.0 May 17.5 31.0 Jun 4.1 30.0 Jul .3 31.0 Aug .2 31.0 Sep 2.7 30.0 Oct 12.9 31.0 Nov 19.4 30.0 Dec 23.9 31.0 Annual 185.9 365.0 Ann-NCDC 185.9 365.0 -------------------------- Element 95: Number Days with Precipitation GE Threshold (count) Qualifier: 1.0 mm MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 11.5 Feb 8.5 Mar 8.9 Apr 9.3 May 8.7 Jun 7.5 Jul 9.3 Aug 11.9 Sep 12.4 Oct 15.8 Nov 16.0 Dec 14.4 Annual 134.2 Ann-NCDC 134.2 ------------------ Element 97: Number Days with Freezing Rain/Drizzle (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan * Feb .1 Mar .2 Apr .2 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov * Dec .1 Annual .6 Ann-NCDC 0.6 ------------------ Element 98: Number Days with Blowing Snow (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 7.6 Feb 11.6 Mar 10.0 Apr 6.2 May .6 Jun .0 Jul .0 Aug * Sep .0 Oct .1 Nov 2.9 Dec 5.6 Annual 44.6 Ann-NCDC 44.6 ------------------ Element AA: Number Days with Rain/Drizzle (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 11.1 Feb 7.3 Mar 7.5 Apr 9.8 May 19.5 Jun 23.3 Jul 27.3 Aug 27.8 Sep 26.9 Oct 23.3 Nov 16.8 Dec 14.1 Annual 214.7 Ann-NCDC 214.7 ------------------ Element AB: Number Days with Snow/Hail (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 23.0 Feb 23.0 Mar 25.7 Apr 24.2 May 13.6 Jun 1.5 Jul .0 Aug .0 Sep .9 Oct 13.8 Nov 20.6 Dec 22.9 Annual 169.2 Ann-NCDC 169.2 ------------------ Element AC: Number Days with Fog/Mist (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 12.2 Feb 11.5 Mar 14.2 Apr 15.9 May 22.4 Jun 25.8 Jul 28.8 Aug 27.4 Sep 17.8 Oct 11.4 Nov 11.7 Dec 12.6 Annual 211.7 Ann-NCDC 211.7 ------------------ Element AD: Number Days with Weather Phenomena (count) #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 28 Feb 29 Mar 29 Apr 29 May 29 Jun 29 Jul 30 Aug 29 Sep 29 Oct 29 Nov 29 Dec 29 Annual NA Ann-NCDC NA ------------------