Station Name: Mombetsu WMO Station Number: 47435 National I.D. Number: Country: JAPAN WMO Region: REGION II - ASIA Latitude: 44d 21m N Longitude: 143d 22m E Elevation: 16 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 STD_DEV (Statistic 03): Standard Deviation of Mean Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN STD_DEV Month -------------------------- Jan -6.4 1.6 Feb -7.0 1.9 Mar -2.5 1.4 Apr 4.3 1.4 May 9.3 1.2 Jun 12.4 1.6 Jul 16.7 1.8 Aug 18.8 1.6 Sep 15.5 .9 Oct 9.7 1.0 Nov 2.9 1.3 Dec -2.6 1.5 Annual 5.9 .6 Ann-NCDC 5.9 NA -------------------------- Element 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value STD_DEV (Statistic 03): Standard Deviation of Mean Value MIN_MLY (Statistic 20): Minimum Monthly Value MAX_MLY (Statistic 26): Maximum Monthly Value ------------------------------------------ byr: 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 Statistic: MEAN STD_DEV MIN_MLY MAX_MLY Month ------------------------------------------ Jan -3.2 1.5 -7.0 -.5 Feb -3.6 1.9 -8.3 -.2 Mar 1.0 1.4 -1.8 4.6 Apr 8.6 1.8 4.9 13.2 May 14.0 1.8 10.5 18.1 Jun 16.1 2.0 11.0 20.0 Jul 20.1 2.2 16.3 25.8 Aug 22.3 2.1 18.0 25.1 Sep 19.7 1.1 17.7 23.0 Oct 14.1 1.1 11.9 16.5 Nov 6.5 1.4 3.8 10.5 Dec .5 1.5 -3.2 4.0 Annual 9.7 .7 8.7 11.4 Ann-NCDC 9.7 NA NA NA ------------------------------------------ Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value STD_DEV (Statistic 03): Standard Deviation of Mean Value MIN_MLY (Statistic 20): Minimum Monthly Value MAX_MLY (Statistic 26): Maximum Monthly Value ------------------------------------------ byr: 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 Statistic: MEAN STD_DEV MIN_MLY MAX_MLY Month ------------------------------------------ Jan -10.1 1.8 -14.1 -6.9 Feb -11.1 2.1 -15.9 -6.8 Mar -6.2 1.6 -9.6 -2.9 Apr .3 1.2 -2.0 2.9 May 5.2 .9 3.4 7.3 Jun 9.1 1.2 6.1 12.2 Jul 13.7 1.5 10.7 17.1 Aug 15.8 1.3 13.0 18.1 Sep 11.7 1.0 10.1 14.7 Oct 5.4 1.0 3.6 7.4 Nov -.7 1.1 -2.6 2.1 Dec -5.9 1.6 -9.2 -2.1 Annual 2.3 .6 1.2 4.0 Ann-NCDC 2.3 NA NA 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 ------------------------------------------------------------------ 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 52.8 25.8 31.5 44.5 53.0 66.5 125.3 Feb 34.9 1.5 14.6 27.0 37.7 51.5 80.0 Mar 47.6 11.5 27.0 38.5 46.2 64.7 111.5 Apr 45.7 6.5 25.6 36.9 50.8 66.4 88.5 May 65.3 18.0 37.5 54.7 61.7 96.5 140.5 Jun 76.0 6.0 37.2 66.9 85.3 112.5 175.2 Jul 82.5 9.0 40.0 59.7 96.0 130.5 164.0 Aug 127.1 12.5 75.2 94.3 143.0 181.0 278.5 Sep 106.4 30.5 71.7 92.8 114.7 133.6 212.0 Oct 86.5 26.0 46.2 67.2 89.5 122.2 230.5 Nov 59.3 13.5 32.7 45.8 63.0 81.5 170.0 Dec 45.0 17.0 29.8 35.5 46.5 58.0 91.5 Annual 829.3 535.0 708.2 788.0 834.9 971.0 1239.3 Ann-NCDC 829.1 NA NA NA NA NA NA ------------------------------------------------------------------ Element 09: Snowfall (cm) MNDLYMX (Statistic 09): Mean Daily Maximum Value MEANMLY (Statistic 15): Mean Monthly Value MIN_MLY (Statistic 20): Minimum Monthly Value MAX_MLY (Statistic 26): Maximum Monthly Value ------------------------------------------ byr: 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 Statistic: MNDLYMX MEANMLY MIN_MLY MAX_MLY Month ------------------------------------------ Jan 23 90 39 178 Feb 14 57 8 126 Mar 17 50 13 107 Apr 10 17 0 69 May 1 1 0 27 Jun 0 0 0 0 Jul 0 0 0 0 Aug 0 0 0 0 Sep 0 0 0 0 Oct * * 0 3 Nov 9 20 1 70 Dec 15 56 20 124 Annual 30 292 182 357 Ann-NCDC NA 291.0 NA NA ------------------------------------------ Element 10: Snow Depth (cm) MAX_VAL (Statistic 04): Maximum Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 53 Feb 62 Mar 62 Apr 30 May 1 Jun 0 Jul 0 Aug 0 Sep 0 Oct * Nov 10 Dec 24 Annual 70 Ann-NCDC NA ------------------ Element 11: Relative Humidity (%) MEAN (Statistic 01): Mean Value STD_DEV (Statistic 03): Standard Deviation of Mean Value MN03LST (Statistic 73): Mean of Observations at 0300 LST MN09LST (Statistic 79): Mean of Observations at 0900 LST MN15LST (Statistic 85): Mean of Observations at 1500 LST MN21LST (Statistic 91): Mean of Observations at 2100 LST ---------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 Statistic: MEAN STD_DEV MN03LST MN09LST MN15LST MN21LST Month ---------------------------------------------------------- Jan 74 4 76 74 71 76 Feb 75 6 77 73 72 76 Mar 73 5 76 69 70 75 Apr 68 5 73 65 63 70 May 72 6 77 70 67 74 Jun 83 4 89 81 78 85 Jul 86 4 91 84 80 87 Aug 84 5 89 81 79 86 Sep 77 4 84 71 71 81 Oct 70 3 77 65 63 74 Nov 70 3 74 68 66 73 Dec 72 3 74 72 68 73 Annual 75 2 80 73 71 78 Ann-NCDC 75.3 NA 79.8 72.8 70.7 77.5 ---------------------------------------------------------- Element 12: Sea Level Pressure (hPa) MEAN (Statistic 01): Mean Value STD_DEV (Statistic 03): Standard Deviation of Mean Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN STD_DEV Month -------------------------- Jan 1011.4 3.8 Feb 1013.2 3.2 Mar 1012.8 2.7 Apr 1013.1 3.0 May 1010.2 1.9 Jun 1009.9 1.9 Jul 1009.0 1.8 Aug 1009.6 1.7 Sep 1012.9 1.8 Oct 1014.8 2.2 Nov 1014.3 2.6 Dec 1012.1 2.4 Annual 1011.9 .9 Ann-NCDC 1011.9 NA -------------------------- Element 13: Station Pressure (hPa) MEAN (Statistic 01): Mean Value STD_DEV (Statistic 03): Standard Deviation of Mean Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN STD_DEV Month -------------------------- Jan 1009.3 3.8 Feb 1011.1 3.2 Mar 1010.7 2.7 Apr 1011.1 3.0 May 1008.2 1.9 Jun 1007.9 1.9 Jul 1007.0 1.8 Aug 1007.7 1.7 Sep 1011.0 1.8 Oct 1012.8 2.2 Nov 1012.3 2.5 Dec 1010.0 2.3 Annual 1009.9 .9 Ann-NCDC 1009.9 NA -------------------------- Element 14: Vapor Pressure (hPa) MEAN (Statistic 01): Mean Value STD_DEV (Statistic 03): Standard Deviation of Mean Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN STD_DEV Month -------------------------- Jan 3.0 .4 Feb 2.9 .4 Mar 3.8 .4 Apr 5.6 .4 May 8.3 .7 Jun 12.0 .9 Jul 16.5 1.4 Aug 18.5 1.5 Sep 13.9 .9 Oct 8.7 .8 Nov 5.5 .6 Dec 3.8 .4 Annual 8.5 .4 Ann-NCDC 8.5 NA -------------------------- Element 15: Sunshine %OFPOSS (Statistic 37): Percent of Possible MN_#HRS (Statistic 44): Mean Number of Hours -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: %OFPOSS MN_#HRS Month -------------------------- Jan 34.0 96.0 Feb 42.0 123.6 Mar 45.0 164.3 Apr 44.0 176.8 May 40.0 181.7 Jun 34.0 159.0 Jul 34.0 159.8 Aug 34.0 148.8 Sep 44.0 165.4 Oct 45.0 153.4 Nov 36.0 104.8 Dec 34.0 94.6 Annual 39.0 1728.0 Ann-NCDC NA 1728.2 -------------------------- Element 16: Wind Speed (m/sec) MEAN (Statistic 01): Mean Value ------------------ byr: 1975 eyr: 1990 Month ------------------ Jan 3.8 Feb 3.5 Mar 3.7 Apr 3.7 May 3.4 Jun 2.4 Jul 2.2 Aug 2.6 Sep 3.2 Oct 4.0 Nov 3.8 Dec 3.9 Annual 3.4 Ann-NCDC 3.4 ------------------ Element 17: Wind Direction (degrees) Statistic 38: Frequency 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 Qualifier: 202.5 degrees ---------------------------------------------------------------------------------- byr: 1975 1975 1975 1975 1975 1975 1975 1975 1975 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 1990 Qualifier: 022.5 045.0 067.5 090.0 112.5 135.0 157.5 180.0 202.5 Month ---------------------------------------------------------------------------------- Jan .030 .020 .020 .020 .020 .020 .020 .030 .090 Feb .020 .030 .030 .030 .040 .050 .020 .030 .110 Mar .030 .030 .020 .040 .070 .070 .040 .020 .070 Apr .030 .040 .040 .060 .060 .080 .050 .030 .080 May .040 .050 .050 .080 .090 .090 .040 .030 .080 Jun .050 .070 .080 .120 .110 .090 .040 .030 .060 Jul .040 .070 .080 .120 .120 .120 .050 .030 .070 Aug .040 .040 .070 .110 .110 .090 .060 .040 .100 Sep .020 .050 .050 .080 .060 .070 .050 .040 .140 Oct .020 .010 .020 .020 .030 .040 .030 .030 .130 Nov .020 .020 .010 .020 .020 .050 .030 .040 .110 Dec .020 .010 .010 .010 .010 .020 .020 .030 .100 Annual .030 .040 .040 .060 .060 .070 .040 .030 .090 Ann-NCDC NA NA NA NA NA NA NA NA NA ---------------------------------------------------------------------------------- Element 17: Wind Direction (degrees) Statistic 38: Frequency 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: 1975 1975 1975 1975 1975 1975 1975 eyr: 1990 1990 1990 1990 1990 1990 1990 Qualifier: 225.0 247.5 270.0 292.5 315.0 337.5 360.0 Month ------------------------------------------------------------------ Jan .150 .080 .130 .170 .100 .060 .040 Feb .120 .080 .110 .110 .120 .060 .040 Mar .090 .070 .110 .100 .110 .080 .040 Apr .120 .090 .080 .070 .070 .050 .030 May .100 .060 .060 .050 .070 .070 .040 Jun .070 .030 .020 .040 .070 .070 .050 Jul .060 .020 .020 .030 .070 .060 .030 Aug .100 .040 .030 .040 .060 .050 .030 Sep .150 .070 .070 .060 .030 .030 .030 Oct .190 .150 .140 .110 .040 .030 .020 Nov .150 .120 .160 .140 .050 .030 .020 Dec .140 .130 .200 .170 .070 .030 .020 Annual .120 .080 .090 .090 .070 .050 .030 Ann-NCDC NA NA NA NA NA NA NA ------------------------------------------------------------------ Element 17: Wind Direction (degrees) PREVAIL (Statistic 41): Prevailing ------------------ byr: 1975 eyr: 1990 Month ------------------ Jan 292.5 Feb 225.0 Mar 315.0 Apr 225.0 May 225.0 Jun 90.0 Jul 112.5 Aug 90.0 Sep 225.0 Oct 225.0 Nov 270.0 Dec 270.0 Annual 225.0 Ann-NCDC NA ------------------ Element 20: Sky Cover (Cloud Cover) (okta) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 5.8 Feb 5.4 Mar 5.4 Apr 5.4 May 5.7 Jun 5.8 Jul 6.1 Aug 6.1 Sep 5.2 Oct 4.8 Nov 5.4 Dec 5.5 Annual 5.6 Ann-NCDC 5.5 ------------------ 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 * May .5 Jun .5 Jul 1.2 Aug 1.7 Sep 1.1 Oct .6 Nov .1 Dec .0 Annual 5.7 Ann-NCDC 5.7 ------------------ Element 56: Number Days with Snowfall (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 26.1 Feb 23.6 Mar 22.6 Apr 9.1 May 1.6 Jun .0 Jul .0 Aug .0 Sep .0 Oct 1.6 Nov 14.3 Dec 23.9 Annual 122.8 Ann-NCDC 122.8 ------------------ Element 73: Number Days with no Sunshine (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 5.6 Feb 3.4 Mar 3.8 Apr 4.0 May 5.3 Jun 6.8 Jul 6.2 Aug 6.7 Sep 4.4 Oct 3.7 Nov 3.9 Dec 4.8 Annual 58.6 Ann-NCDC 58.6 ------------------ Element 83: Number Days Maximum Temperature GE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 25.0 deg C Qualifier: 30.0 deg C -------------------------- byr: 1961 1961 eyr: 1990 1990 Qualifier: 25.0 30.0 Month -------------------------- Jan .0 .0 Feb .0 .0 Mar .0 .0 Apr * .0 May 1.2 * Jun 2.2 .2 Jul 5.7 1.6 Aug 8.3 1.4 Sep 1.8 .2 Oct .1 .0 Nov .0 .0 Dec .0 .0 Annual 19.3 3.4 Ann-NCDC 19.3 3.4 -------------------------- Element 86: Number Days Minimum Temperature GE Threshold (count) Qualifier: 25.0 deg C MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .0 Feb .0 Mar .0 Apr .0 May .0 Jun .0 Jul * Aug .0 Sep .0 Oct .0 Nov .0 Dec .0 Annual * Ann-NCDC * ------------------ Element 87: Number Days Mean Temperature GE Threshold (count) Qualifier: 25.0 deg C MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .0 Feb .0 Mar .0 Apr .0 May .0 Jun .0 Jul 1.1 Aug .9 Sep .0 Oct .0 Nov .0 Dec .0 Annual 2.1 Ann-NCDC 2.0 ------------------ Element 91: Number Days Maximum Temperature LT Threshold (count) Qualifier: 0.0 deg C MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 25.8 Feb 23.1 Mar 13.2 Apr .7 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov 2.2 Dec 14.5 Annual 79.5 Ann-NCDC 79.5 ------------------ Element 93: Number Days Minimum Temperature LT Threshold (count) Qualifier: 0.0 deg C MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 31.0 Feb 28.1 Mar 30.0 Apr 14.4 May 1.2 Jun * Jul .0 Aug .0 Sep .0 Oct .9 Nov 16.8 Dec 29.4 Annual 151.9 Ann-NCDC 151.8 ------------------ Element 95: Number Days with Precipitation GE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 0.5 mm Qualifier: 1.0 mm Qualifier: 10.0 mm Qualifier: 30.0 mm Qualifier: 50.0 mm Qualifier: 70.0 mm Qualifier: 100.0 mm ------------------------------------------------------------------ byr: 1968 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 Qualifier: 0.5 1.0 10.0 30.0 50.0 70.0 100.0 Month ------------------------------------------------------------------ Jan 15.7 12.2 1.1 .1 * .0 .0 Feb 12.7 9.4 .6 .1 .0 .0 .0 Mar 12.0 9.5 1.0 .1 * .0 .0 Apr 9.2 7.7 1.3 .2 * .0 .0 May 11.7 8.7 1.9 .2 * .0 .0 Jun 10.4 9.1 2.4 .4 .1 * .0 Jul 11.0 9.5 2.9 .4 .1 * .0 Aug 12.3 11.2 4.0 1.0 .3 .1 * Sep 12.0 11.2 3.3 .6 .1 * .0 Oct 13.2 10.3 2.6 .4 .1 .1 .0 Nov 12.7 10.0 1.8 .1 .0 .0 .0 Dec 13.6 10.4 1.0 * * .0 .0 Annual 146.5 119.1 23.9 3.7 .9 .3 * Ann-NCDC 146.5 119.2 23.9 3.6 0.7 0.2 * ------------------------------------------------------------------ Element BH: Number Days Mean Temperature LT Threshold (count) Qualifier: 0.0 deg C MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 30.0 Feb 27.2 Mar 24.1 Apr 3.9 May .1 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov 6.7 Dec 24.4 Annual 116.3 Ann-NCDC 116.4 ------------------ Element BJ: Number Days with Fog (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .2 Feb .2 Mar .7 Apr 1.5 May 2.7 Jun 5.8 Jul 7.0 Aug 4.2 Sep .6 Oct .1 Nov .2 Dec .1 Annual 23.4 Ann-NCDC 23.3 ------------------ Element BM: Number Days with Daily Maximum Wind Speed GE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 10.0 m/sec Qualifier: 15.0 m/sec Qualifier: 20.0 m/sec Qualifier: 30.0 m/sec ------------------------------------------ byr: 1975 1975 1975 1975 eyr: 1990 1990 1990 1990 Qualifier: 10.0 15.0 20.0 30.0 Month ------------------------------------------ Jan 5.4 .3 .1 .0 Feb 2.8 .0 .0 .0 Mar 5.1 .1 .0 .0 Apr 6.0 .8 .1 .0 May 6.6 .4 .0 .0 Jun .3 .0 .0 .0 Jul .4 .0 .0 .0 Aug 1.6 .1 .0 .0 Sep 1.9 .1 .0 .0 Oct 5.9 .1 .0 .0 Nov 4.8 .1 .0 .0 Dec 5.1 .0 .0 .0 Annual 45.8 2.0 .3 .0 Ann-NCDC 45.9 2.0 0.2 0.0 ------------------------------------------ Element BT: Number Days with Occurrence of Rain (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1968 eyr: 1990 Month ------------------ Jan 26.3 Feb 23.8 Mar 23.2 Apr 17.2 May 18.4 Jun 18.2 Jul 18.3 Aug 18.2 Sep 17.5 Oct 20.4 Nov 22.8 Dec 26.1 Annual 250.4 Ann-NCDC 250.4 ------------------ Element BW: Number Days with Daily Maximum Snow Cover GE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 0.0 cm Qualifier: 5.0 cm Qualifier: 10.0 cm Qualifier: 20.0 cm Qualifier: 50.0 cm Qualifier: 100.0 cm ---------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 Qualifier: 0.0 5.0 10.0 20.0 50.0 100.0 Month ---------------------------------------------------------- Jan 31.0 30.5 29.1 24.1 4.2 * Feb 28.2 28.2 28.2 27.9 13.0 .0 Mar 30.7 29.9 29.2 26.9 12.2 .2 Apr 11.4 7.8 5.5 3.6 1.0 .1 May .6 .1 .1 * .0 .0 Jun .0 .0 .0 .0 .0 .0 Jul .0 .0 .0 .0 .0 .0 Aug .0 .0 .0 .0 .0 .0 Sep .0 .0 .0 .0 .0 .0 Oct .2 .0 .0 .0 .0 .0 Nov 11.2 3.2 1.2 .4 .0 .0 Dec 28.3 21.0 13.8 5.3 * .0 Annual 141.6 120.7 107.1 88.2 30.5 .3 Ann-NCDC 141.6 120.7 107.1 88.2 30.4 0.3 ----------------------------------------------------------