Station Name: Miyakejima WMO Station Number: 47677 National I.D. Number: Country: JAPAN WMO Region: REGION II - ASIA Latitude: 34d 07m N Longitude: 139d 31m E Elevation: 36 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 9.5 1.3 Feb 9.2 1.4 Mar 11.3 1.0 Apr 15.4 .9 May 18.8 .7 Jun 21.6 .7 Jul 24.8 .9 Aug 26.1 .7 Sep 24.0 .8 Oct 19.9 .8 Nov 16.3 .9 Dec 12.1 1.1 Annual 17.4 .5 Ann-NCDC 17.4 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 11.6 1.4 9.1 14.5 Feb 11.5 1.5 8.9 14.9 Mar 13.8 1.1 11.1 15.5 Apr 18.1 .9 16.1 20.0 May 21.4 .7 19.6 22.8 Jun 24.0 .8 22.7 25.7 Jul 27.1 1.0 24.4 29.0 Aug 28.5 .7 26.0 29.7 Sep 26.2 .9 24.4 28.5 Oct 22.2 .8 20.5 24.0 Nov 18.6 1.0 16.1 20.5 Dec 14.2 1.1 12.2 16.3 Annual 19.8 .5 18.8 20.8 Ann-NCDC 19.8 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 6.8 1.2 4.5 9.2 Feb 6.4 1.4 3.9 9.2 Mar 8.4 1.1 5.6 10.0 Apr 12.4 1.0 10.4 14.8 May 15.9 .7 14.7 17.5 Jun 19.2 .7 18.0 20.6 Jul 22.6 .9 20.1 24.5 Aug 23.9 .8 22.4 25.2 Sep 21.7 .8 19.7 24.0 Oct 17.4 1.0 15.1 19.6 Nov 13.5 1.0 10.8 15.6 Dec 9.2 1.1 6.7 11.5 Annual 14.8 .5 13.9 16.0 Ann-NCDC 14.8 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 138.3 27.6 53.2 93.8 138.8 244.5 315.5 Feb 172.9 26.1 77.2 141.5 189.5 239.5 447.0 Mar 248.8 74.5 140.5 218.4 277.0 355.5 454.5 Apr 239.2 121.5 165.6 199.0 246.2 325.7 386.8 May 250.4 72.0 162.5 223.7 274.0 333.0 473.5 Jun 328.2 148.2 218.2 264.1 347.2 476.9 581.3 Jul 196.0 24.3 91.2 143.2 223.0 305.0 440.5 Aug 225.9 40.5 114.3 171.7 251.7 332.7 485.0 Sep 323.6 64.5 179.3 268.5 357.0 450.5 701.5 Oct 352.4 139.5 247.6 317.5 384.1 429.5 675.7 Nov 255.6 53.5 128.4 201.2 268.2 377.3 702.5 Dec 140.7 9.0 76.5 114.5 172.0 193.0 299.5 Annual 2871.9 1911.0 2518.9 2704.0 2859.0 3273.9 NA Ann-NCDC 2872.0 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 * * 0 * Feb * * 0 5 Mar * * 0 * Apr * * 0 * 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 * Annual * * 0 5 Ann-NCDC NA * NA NA ------------------------------------------ Element 10: Snow Depth (cm) MAX_VAL (Statistic 04): Maximum Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan * Feb * Mar * Apr 0 May 0 Jun 0 Jul 0 Aug 0 Sep 0 Oct 0 Nov 0 Dec 0 Annual * 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 63 4 64 63 60 63 Feb 65 4 67 65 63 66 Mar 68 4 70 67 64 70 Apr 74 4 78 71 69 76 May 77 3 82 75 72 80 Jun 84 3 88 82 80 87 Jul 86 2 90 85 82 89 Aug 85 2 89 83 80 87 Sep 82 3 85 80 78 83 Oct 75 3 77 74 72 76 Nov 70 3 72 69 68 71 Dec 65 3 67 64 62 66 Annual 74 1 77 73 71 76 Ann-NCDC 74.5 NA 77.4 73.2 70.8 76.2 ---------------------------------------------------------- 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 1014.7 2.6 Feb 1015.0 2.2 Mar 1014.6 1.6 Apr 1015.4 2.0 May 1012.2 1.3 Jun 1009.5 1.6 Jul 1009.4 1.4 Aug 1009.7 1.8 Sep 1012.2 1.3 Oct 1015.5 1.3 Nov 1017.4 1.5 Dec 1016.4 1.8 Annual 1013.5 .5 Ann-NCDC 1013.5 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 1010.2 2.6 Feb 1010.4 2.2 Mar 1010.1 1.6 Apr 1011.0 2.0 May 1007.8 1.3 Jun 1005.2 1.6 Jul 1005.2 1.4 Aug 1005.5 1.8 Sep 1007.9 1.3 Oct 1011.1 1.3 Nov 1012.9 1.5 Dec 1012.0 1.8 Annual 1009.1 .5 Ann-NCDC 1009.1 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 7.7 1.1 Feb 7.9 1.2 Mar 9.4 .9 Apr 13.2 1.2 May 16.9 1.0 Jun 21.9 1.2 Jul 27.2 1.4 Aug 28.8 1.3 Sep 24.7 1.4 Oct 17.7 1.2 Nov 13.4 1.2 Dec 9.4 1.0 Annual 16.5 .5 Ann-NCDC 16.5 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 40.0 124.1 Feb 37.0 113.0 Mar 37.0 138.2 Apr 39.0 150.5 May 41.0 176.8 Jun 30.0 131.6 Jul 41.0 179.2 Aug 51.0 211.0 Sep 38.0 142.8 Oct 31.0 109.6 Nov 33.0 103.5 Dec 41.0 125.6 Annual 38.0 1705.9 Ann-NCDC NA 1705.9 -------------------------- Element 16: Wind Speed (m/sec) MEAN (Statistic 01): Mean Value ------------------ byr: 1975 eyr: 1990 Month ------------------ Jan 6.0 Feb 5.8 Mar 5.6 Apr 5.0 May 4.5 Jun 4.6 Jul 4.2 Aug 3.9 Sep 5.0 Oct 5.5 Nov 5.4 Dec 5.2 Annual 5.1 Ann-NCDC 5.1 ------------------ 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 .090 .060 .010 .020 .020 .020 .030 .040 .040 Feb .120 .080 .020 .030 .030 .020 .040 .040 .040 Mar .120 .100 .040 .060 .050 .040 .030 .050 .060 Apr .090 .110 .050 .070 .070 .060 .060 .070 .080 May .060 .090 .050 .090 .070 .060 .040 .070 .100 Jun .080 .110 .050 .090 .080 .050 .040 .050 .080 Jul .050 .110 .060 .090 .070 .060 .030 .050 .070 Aug .060 .090 .050 .080 .070 .050 .050 .080 .090 Sep .140 .160 .060 .080 .050 .050 .040 .060 .070 Oct .170 .170 .060 .070 .060 .050 .050 .060 .050 Nov .170 .110 .030 .040 .040 .040 .050 .050 .050 Dec .100 .060 .020 .020 .020 .020 .030 .060 .050 Annual .100 .100 .040 .060 .050 .040 .040 .060 .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 .060 .190 .220 .160 .020 .010 .020 Feb .070 .160 .160 .140 .020 .020 .030 Mar .080 .150 .090 .090 .010 .020 .030 Apr .150 .120 .030 .030 .010 .010 .010 May .210 .100 .020 .020 .010 .010 .010 Jun .260 .060 .010 .010 .010 .010 .010 Jul .300 .070 * .010 .010 .010 .010 Aug .250 .080 .010 .010 .010 .010 .010 Sep .180 .060 .010 .010 .010 .010 .010 Oct .090 .080 .020 .030 .010 .010 .020 Nov .090 .140 .080 .060 .010 .010 .020 Dec .080 .220 .150 .130 .010 .020 .020 Annual .150 .120 .070 .060 .010 .010 .020 Ann-NCDC NA NA NA NA NA NA NA ------------------------------------------------------------------ Element 17: Wind Direction (degrees) PREVAIL (Statistic 41): Prevailing ------------------ byr: 1975 eyr: 1990 Month ------------------ Jan 270.0 Feb 270.0 Mar 247.5 Apr 225.0 May 225.0 Jun 225.0 Jul 225.0 Aug 225.0 Sep 225.0 Oct 45.0 Nov 22.5 Dec 247.5 Annual 225.0 Ann-NCDC NA ------------------ Element 20: Sky Cover (Cloud Cover) (okta) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 5.0 Feb 5.4 Mar 5.4 Apr 5.7 May 5.8 Jun 6.6 Jul 5.9 Aug 5.1 Sep 5.7 Oct 5.7 Nov 5.4 Dec 4.6 Annual 5.5 Ann-NCDC 5.5 ------------------ Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1.4 Feb 1.1 Mar 1.6 Apr .5 May .5 Jun .5 Jul 1.5 Aug 2.1 Sep 2.4 Oct 1.2 Nov 1.6 Dec 1.9 Annual 16.3 Ann-NCDC 16.3 ------------------ Element 56: Number Days with Snowfall (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1.8 Feb 2.0 Mar .7 Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .0 Dec .3 Annual 4.8 Ann-NCDC 4.8 ------------------ Element 73: Number Days with no Sunshine (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 3.7 Feb 4.4 Mar 6.1 Apr 5.7 May 5.4 Jun 6.7 Jul 4.0 Aug 2.0 Sep 5.4 Oct 7.7 Nov 5.9 Dec 3.7 Annual 60.9 Ann-NCDC 60.7 ------------------ 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 .0 May 1.0 .0 Jun 10.0 .0 Jul 25.7 1.7 Aug 29.9 4.9 Sep 21.0 .8 Oct 3.4 .0 Nov .1 .0 Dec .0 .0 Annual 91.2 7.3 Ann-NCDC 91.1 7.4 -------------------------- 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 .1 Jul 4.9 Aug 9.5 Sep 2.1 Oct .0 Nov .0 Dec .0 Annual 16.7 Ann-NCDC 16.6 ------------------ 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 1.6 Jul 17.1 Aug 25.5 Sep 10.5 Oct .1 Nov .0 Dec .0 Annual 54.8 Ann-NCDC 54.8 ------------------ 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 .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 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 .3 Feb .3 Mar * Apr .0 May .0 Jun .0 Jul .0 Aug .0 Sep .0 Oct .0 Nov .0 Dec .0 Annual .7 Ann-NCDC 0.6 ------------------ 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 11.1 9.4 4.0 1.1 .6 .4 .1 Feb 12.1 10.8 4.6 1.6 .7 .4 .1 Mar 15.8 14.1 7.3 2.6 1.0 .5 .2 Apr 14.0 12.7 7.0 2.6 1.1 .4 .2 May 12.9 12.3 6.5 2.7 1.3 .6 .3 Jun 15.8 14.4 8.1 4.0 1.7 .8 .3 Jul 11.8 10.2 4.9 1.9 1.0 .6 .1 Aug 11.8 9.9 5.2 2.4 1.4 .7 .3 Sep 15.5 13.5 7.7 3.4 1.8 1.2 .6 Oct 15.6 14.3 7.9 3.3 2.0 1.2 .5 Nov 13.2 12.0 6.5 2.7 1.2 .7 .4 Dec 10.3 9.2 4.1 1.4 .7 .2 .1 Annual 160.0 142.8 73.7 29.6 14.4 7.7 3.3 Ann-NCDC 159.9 142.8 73.8 29.7 14.5 7.7 3.2 ------------------------------------------------------------------ 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 .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 BJ: Number Days with Fog (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan .0 Feb * Mar * Apr .1 May .2 Jun .5 Jul 1.0 Aug .2 Sep * Oct .0 Nov .0 Dec .0 Annual 2.2 Ann-NCDC 2.0 ------------------ 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 21.1 5.8 .4 .0 Feb 18.5 5.4 .3 .0 Mar 18.1 3.9 .4 .0 Apr 12.5 1.5 .1 .0 May 8.0 1.3 .0 .0 Jun 6.2 1.1 .1 .0 Jul 3.6 .7 .0 .0 Aug 3.7 .8 .2 .0 Sep 9.8 2.5 .4 .0 Oct 14.6 3.9 .6 .1 Nov 15.3 3.3 .3 .0 Dec 16.5 3.2 .0 .0 Annual 147.8 33.2 2.8 .1 Ann-NCDC 147.9 33.4 2.8 0.1 ------------------------------------------ Element BT: Number Days with Occurrence of Rain (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1968 eyr: 1990 Month ------------------ Jan 18.2 Feb 18.2 Mar 21.4 Apr 17.4 May 16.8 Jun 21.2 Jul 17.6 Aug 17.9 Sep 20.0 Oct 20.9 Nov 17.9 Dec 15.9 Annual 223.4 Ann-NCDC 223.4 ------------------ 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 .1 .0 .0 .0 .0 .0 Feb .4 * .0 .0 .0 .0 Mar .1 .0 .0 .0 .0 .0 Apr .0 .0 .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 .0 .0 .0 .0 .0 .0 Annual .6 * .0 .0 .0 .0 Ann-NCDC 0.6 * 0.0 0.0 0.0 0.0 ----------------------------------------------------------