Station Name: Yokohama WMO Station Number: 47670 National I.D. Number: Country: JAPAN WMO Region: REGION II - ASIA Latitude: 35d 26m N Longitude: 139d 39m E Elevation: 39 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 5.1 1.2 Feb 5.4 1.2 Mar 8.2 1.2 Apr 13.7 1.0 May 18.1 .8 Jun 21.1 1.0 Jul 24.5 1.2 Aug 26.4 1.0 Sep 22.7 1.1 Oct 17.2 .9 Nov 12.4 1.0 Dec 7.7 1.0 Annual 15.2 .5 Ann-NCDC 15.2 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 9.6 1.1 6.9 11.5 Feb 9.7 1.3 6.1 12.2 Mar 12.5 1.2 9.8 14.6 Apr 18.0 1.1 15.5 19.7 May 22.4 .9 20.5 24.0 Jun 24.7 1.2 22.8 27.0 Jul 28.2 1.5 24.8 31.1 Aug 30.4 1.2 26.3 32.1 Sep 26.3 1.3 24.5 29.4 Oct 20.9 .9 19.2 22.7 Nov 16.5 1.2 14.3 19.1 Dec 12.1 1.0 10.0 13.8 Annual 19.3 .6 18.1 20.5 Ann-NCDC 19.3 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 1.0 1.3 -1.9 4.6 Feb 1.5 1.4 -1.1 4.7 Mar 4.2 1.2 1.0 6.6 Apr 9.8 1.0 6.7 11.5 May 14.4 .8 12.6 15.9 Jun 18.2 1.0 16.4 20.3 Jul 21.9 1.1 19.5 24.1 Aug 23.6 .9 20.6 25.3 Sep 19.8 1.1 17.8 22.0 Oct 13.8 1.0 12.2 15.7 Nov 8.6 1.2 7.0 11.3 Dec 3.6 1.2 1.5 6.4 Annual 11.7 .6 10.7 13.3 Ann-NCDC 11.7 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 53.0 .0 25.2 36.7 49.7 72.0 161.8 Feb 74.5 13.3 27.9 52.2 72.0 126.0 174.2 Mar 120.5 15.5 79.3 108.3 129.9 153.0 221.0 Apr 146.7 52.5 103.5 134.5 162.2 177.8 257.5 May 151.6 52.3 90.3 122.7 148.0 199.1 397.2 Jun 217.5 88.2 125.2 162.2 233.2 291.2 486.9 Jul 135.1 17.4 68.3 109.7 159.5 185.5 288.5 Aug 146.3 28.5 58.1 104.3 162.2 209.7 374.0 Sep 196.4 14.8 110.5 161.6 211.1 267.7 481.5 Oct 174.0 53.0 103.7 146.5 171.2 257.0 365.0 Nov 104.0 22.0 47.0 75.7 104.5 163.8 302.0 Dec 49.4 .0 18.7 33.8 45.0 65.2 235.0 Annual 1568.9 996.0 1399.5 1506.7 1639.2 1782.7 2252.0 Ann-NCDC 1569.0 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 2 4 0 53 Feb 6 9 0 43 Mar 3 3 0 40 Apr * * 0 5 May 0 0 0 0 Jun 0 0 0 0 Jul 0 0 0 0 Aug 0 0 0 0 Sep 0 0 0 0 Oct 0 0 0 0 Nov * * 0 * Dec * * 0 2 Annual 8 16 0 109 Ann-NCDC NA 16.0 NA NA ------------------------------------------ Element 10: Snow Depth (cm) MAX_VAL (Statistic 04): Maximum Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 2 Feb 7 Mar 3 Apr * May 0 Jun 0 Jul 0 Aug 0 Sep 0 Oct 0 Nov 0 Dec * Annual 9 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 54 6 60 56 46 56 Feb 57 6 63 57 49 60 Mar 61 5 68 59 53 64 Apr 69 4 76 65 60 73 May 72 4 81 69 61 76 Jun 79 3 87 78 70 83 Jul 81 2 89 80 71 84 Aug 78 3 87 76 67 82 Sep 79 3 86 77 69 81 Oct 73 4 80 71 64 76 Nov 66 4 72 65 57 68 Dec 59 5 66 60 50 61 Annual 69 2 76 68 60 72 Ann-NCDC 69.0 NA 76.3 67.8 59.8 72.0 ---------------------------------------------------------- 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 1015.0 3.1 Feb 1015.5 2.3 Mar 1015.2 1.9 Apr 1015.6 2.0 May 1012.1 1.3 Jun 1009.6 1.5 Jul 1009.2 1.6 Aug 1009.5 1.6 Sep 1012.8 1.3 Oct 1016.6 1.4 Nov 1018.0 1.8 Dec 1016.6 2.1 Annual 1013.8 .6 Ann-NCDC 1013.8 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 1009.8 3.1 Feb 1010.4 2.3 Mar 1010.0 1.9 Apr 1010.6 2.0 May 1007.2 1.3 Jun 1004.7 1.5 Jul 1004.4 1.6 Aug 1004.8 1.7 Sep 1008.0 1.2 Oct 1011.6 1.4 Nov 1013.0 1.8 Dec 1011.5 2.1 Annual 1008.8 .6 Ann-NCDC 1008.8 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 4.9 .8 Feb 5.3 .9 Mar 6.8 .8 Apr 11.0 1.1 May 14.9 1.0 Jun 19.8 1.2 Jul 25.1 1.5 Aug 26.9 1.3 Sep 21.8 1.3 Oct 14.5 1.0 Nov 9.8 1.1 Dec 6.3 .7 Annual 13.9 .5 Ann-NCDC 13.9 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 56.0 173.6 Feb 48.0 146.3 Mar 44.0 162.5 Apr 41.0 158.6 May 43.0 186.5 Jun 30.0 128.8 Jul 36.0 157.2 Aug 48.0 199.2 Sep 33.0 123.5 Oct 39.0 135.1 Nov 45.0 139.2 Dec 56.0 169.5 Annual 42.0 1880.2 Ann-NCDC NA 1880.0 -------------------------- Element 16: Wind Speed (m/sec) MEAN (Statistic 01): Mean Value ------------------ byr: 1975 eyr: 1990 Month ------------------ Jan 3.3 Feb 3.5 Mar 3.7 Apr 3.7 May 3.5 Jun 3.3 Jul 3.1 Aug 3.4 Sep 3.4 Oct 3.4 Nov 3.3 Dec 3.2 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 .100 .030 .020 .040 .040 .020 .010 .010 .010 Feb .100 .040 .030 .060 .050 .020 .020 .010 .020 Mar .100 .050 .050 .070 .050 .030 .020 .030 .030 Apr .070 .060 .060 .080 .050 .040 .050 .070 .090 May .060 .040 .050 .080 .050 .040 .060 .100 .140 Jun .080 .050 .060 .100 .050 .040 .070 .090 .130 Jul .060 .050 .060 .120 .060 .040 .080 .090 .130 Aug .050 .040 .050 .090 .050 .040 .070 .090 .170 Sep .090 .050 .060 .090 .040 .030 .040 .060 .080 Oct .110 .040 .040 .070 .050 .030 .020 .030 .030 Nov .110 .050 .030 .050 .040 .020 .020 .020 .030 Dec .090 .030 .020 .050 .030 .020 .020 .020 .020 Annual .090 .040 .040 .080 .050 .030 .040 .050 .070 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 .050 .060 .030 .020 .040 .150 .360 Feb .040 .040 .020 .020 .030 .140 .360 Mar .060 .030 .010 .010 .020 .100 .330 Apr .100 .030 .010 .010 .020 .070 .190 May .110 .030 .020 .010 .020 .050 .140 Jun .110 .020 .010 .010 .010 .030 .120 Jul .130 .030 .010 .010 .010 .030 .080 Aug .150 .030 .010 .010 .010 .040 .100 Sep .080 .020 .010 .010 .020 .090 .250 Oct .040 .020 .010 .010 .030 .120 .340 Nov .040 .040 .020 .020 .030 .150 .330 Dec .040 .050 .030 .020 .040 .180 .350 Annual .080 .040 .020 .010 .020 .100 .240 Ann-NCDC NA NA NA NA NA NA NA ------------------------------------------------------------------ Element 17: Wind Direction (degrees) PREVAIL (Statistic 41): Prevailing ------------------ byr: 1975 eyr: 1990 Month ------------------ Jan 360.0 Feb 360.0 Mar 360.0 Apr 360.0 May 360.0 Jun 202.5 Jul 202.5 Aug 202.5 Sep 360.0 Oct 360.0 Nov 360.0 Dec 360.0 Annual 360.0 Ann-NCDC NA ------------------ Element 20: Sky Cover (Cloud Cover) (okta) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 3.4 Feb 4.5 Mar 5.0 Apr 5.5 May 5.8 Jun 6.6 Jul 6.2 Aug 5.3 Sep 6.1 Oct 5.4 Nov 4.6 Dec 3.4 Annual 5.1 Ann-NCDC 5.2 ------------------ Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .2 Feb .1 Mar .5 Apr .4 May .8 Jun 1.0 Jul 1.8 Aug 1.9 Sep 1.7 Oct .4 Nov .5 Dec .4 Annual 9.7 Ann-NCDC 9.7 ------------------ Element 56: Number Days with Snowfall (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 2.5 Feb 4.3 Mar 2.4 Apr .2 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .1 Dec .5 Annual 10.0 Ann-NCDC 10.0 ------------------ Element 73: Number Days with no Sunshine (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 3.2 Feb 5.1 Mar 5.7 Apr 5.7 May 5.1 Jun 7.7 Jul 6.1 Aug 3.1 Sep 7.1 Oct 7.4 Nov 5.4 Dec 3.2 Annual 64.8 Ann-NCDC 64.8 ------------------ 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 .4 .0 May 6.6 .0 Jun 15.3 .9 Jul 24.8 12.4 Aug 29.6 20.6 Sep 19.5 5.4 Oct 3.2 .1 Nov .2 .0 Dec .0 .0 Annual 99.5 39.3 Ann-NCDC 99.6 39.4 -------------------------- 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 2.3 Aug 6.9 Sep 1.1 Oct .0 Nov .0 Dec .0 Annual 10.3 Ann-NCDC 10.3 ------------------ 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 1.4 Jul 16.2 Aug 24.9 Sep 7.5 Oct * Nov .0 Dec .0 Annual 50.1 Ann-NCDC 50.0 ------------------ 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 .0 Feb * Mar .0 Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .0 Dec .0 Annual * Ann-NCDC * ------------------ 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 11.0 Feb 7.9 Mar 1.8 Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .0 Dec 2.4 Annual 23.2 Ann-NCDC 23.1 ------------------ 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 5.4 4.9 1.6 .3 .0 .0 .0 Feb 7.6 6.5 2.6 .5 .2 * .0 Mar 11.3 9.4 4.2 .9 .2 .1 .0 Apr 11.6 10.0 4.7 1.2 .4 .1 * May 10.7 9.8 4.7 1.4 .5 .2 .0 Jun 13.7 12.3 5.9 2.2 .8 .3 .2 Jul 11.3 9.7 3.8 1.0 .5 .2 .2 Aug 9.4 7.8 3.3 1.4 .7 .5 .2 Sep 13.0 10.8 5.3 1.9 1.0 .5 .2 Oct 11.0 9.6 5.2 1.9 .6 .3 .1 Nov 8.0 7.1 2.9 .9 .3 .1 .1 Dec 4.9 4.3 1.8 .4 .1 * .0 Annual 117.8 102.3 46.2 14.0 5.3 2.5 1.0 Ann-NCDC 117.9 102.2 46.0 14.0 5.3 2.3 1.0 ------------------------------------------------------------------ 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 .1 Feb .2 Mar .0 Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .0 Dec .0 Annual .3 Ann-NCDC 0.3 ------------------ Element BJ: Number Days with Fog (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .5 Feb .7 Mar 1.2 Apr 2.1 May 1.5 Jun 2.4 Jul 2.9 Aug .7 Sep 1.0 Oct 1.1 Nov 1.4 Dec .5 Annual 16.0 Ann-NCDC 16.0 ------------------ 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 3.8 .2 .0 .0 Feb 3.1 .0 .0 .0 Mar 4.5 .2 .0 .0 Apr 5.0 .3 .0 .0 May 2.5 .0 .0 .0 Jun 2.3 .0 .0 .0 Jul .8 .1 .0 .0 Aug 1.6 .1 .0 .0 Sep 1.7 .1 .0 .0 Oct 2.6 .1 .0 .0 Nov 2.8 .1 .0 .0 Dec 3.6 .0 .0 .0 Annual 34.1 .9 .0 .0 Ann-NCDC 34.3 1.2 0.0 0.0 ------------------------------------------ Element BT: Number Days with Occurrence of Rain (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1968 eyr: 1990 Month ------------------ Jan 9.5 Feb 12.1 Mar 17.7 Apr 16.4 May 15.4 Jun 18.8 Jul 18.2 Aug 15.7 Sep 18.6 Oct 16.8 Nov 12.7 Dec 9.8 Annual 181.7 Ann-NCDC 181.7 ------------------ 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 1.3 .4 .2 .1 .0 .0 Feb 2.7 1.0 .6 .2 .0 .0 Mar 1.2 .4 .2 .1 .0 .0 Apr .1 * .0 .0 .0 .0 May .0 .0 .0 .0 .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 .0 .0 .0 .0 .0 .0 Nov .0 .0 .0 .0 .0 .0 Dec .1 .0 .0 .0 .0 .0 Annual 5.4 1.9 1.0 .3 .0 .0 Ann-NCDC 5.4 1.8 1.0 0.4 0.0 0.0 ----------------------------------------------------------