Syowa 00Z 200hPa height 1968 - - 11119.4 10940.2 10937.9 10794.6 10518.8 10588.6 10453.9 10751.4 11021.4 11187.3 1969 11318.4 11208.9 11019.9 11013.0 10833.3 10909.7 10545.5 10516.7 10540.6 10810.9 10952.8 11175.4 1970 11186.3 11143.8 11109.2 10921.5 10815.7 10762.1 10615.4 10487.9 10610.2 10712.3 10989.0 11162.8 1971 11341.7 11238.5 11076.9 10937.8 10907.3 10620.1 10592.2 10614.2 10646.5 10663.5 10922.3 11279.3 1972 11286.9 11172.3 11059.4 11025.0 10831.5 10826.3 10560.8 10742.4 10644.7 10673.5 10877.2 11155.7 1973 11257.7 11159.8 11013.1 10935.0 10892.4 10793.8 10583.0 10495.2 10622.3 10666.3 10868.5 11110.8 1974 11266.6 11122.4 11042.4 10960.3 10895.5 10818.7 10656.5 10728.4 10600.7 10673.1 10986.4 11251.9 1975 11313.2 11228.6 11155.3 10880.6 10991.5 10737.3 10733.5 10608.9 10606.9 10672.6 10916.0 11194.7 1976 11327.2 11159.8 11020.4 10885.6 10695.5 10781.7 10577.5 10569.2 10548.2 10571.2 10995.7 11369.5 1977 11309.0 11185.7 11025.5 10938.1 10947.9 10873.8 10791.3 10755.8 10565.5 10694.5 10841.7 11142.9 1978 11137.2 11173.4 11062.0 10943.6 10854.0 10714.8 10706.4 10467.6 10601.9 10757.4 10931.9 11169.9 1979 11265.3 11153.3 11043.5 11003.0 10819.2 10647.3 10537.0 10500.8 10548.4 10775.3 11005.0 11266.7 1980 11264.3 11221.2 11136.1 11019.4 10908.8 10718.6 10807.9 10715.1 10735.9 10631.1 10977.7 11133.3 1981 11243.5 11247.9 11093.3 10913.6 10850.5 10708.1 10841.8 10777.6 10688.7 10684.3 10857.4 11139.2 1982 11238.8 11169.1 10990.8 10924.3 10817.4 10676.9 10615.3 10637.1 10585.1 10721.7 11080.5 11286.0 1983 11233.8 11188.9 11044.4 10958.8 10913.8 10734.5 10596.0 10554.8 10678.5 10687.0 10837.8 11095.0 1984 11234.1 11182.9 11078.4 10932.6 10977.0 10710.4 10682.9 10664.1 10601.8 10657.6 10902.4 11281.6 1985 11285.7 11170.5 11128.7 11038.8 10817.1 10780.7 10599.1 10586.2 10606.3 10638.9 10794.7 11035.9 1986 11246.4 11295.1 11125.5 10936.5 10884.3 10794.2 10657.4 10709.9 10549.7 10684.3 10898.8 11042.6 1987 11288.7 11176.6 11073.8 10959.4 10875.6 10754.2 10733.1 10539.5 10580.1 10702.3 10894.5 11094.9 1988 11314.3 11165.6 11171.2 10940.2 10868.1 10921.9 10572.0 10604.1 10749.3 10855.3 10936.6 11194.0 1989 11270.6 11226.0 11101.7 10945.1 10715.0 10693.2 10573.8 10602.0 10643.6 10683.2 10917.0 11169.0 1990 11242.4 11187.6 11104.3 11034.0 10955.3 10722.0 10846.2 10563.2 10449.9 10811.3 10961.3 11078.1 1991 11153.0 11247.4 11052.8 10899.0 10818.0 10873.3 10701.3 10643.0 10632.0 10720.1 10859.4 11348.7 1992 11299.7 11209.1 11105.3 10958.7 10973.8 10878.1 10681.0 10516.1 10532.6 10704.4 10803.8 11068.2 1993 11253.5 11147.8 11006.6 10930.1 10823.1 10734.3 10637.2 10586.7 10658.0 10736.9 10856.2 11034.2 1994 11133.8 11149.8 11008.9 10988.6 10828.2 10903.9 10704.9 10632.4 10628.6 10719.6 10920.5 11096.2 1995 11168.7 11200.5 11101.7 10950.3 10779.9 10722.5 10786.5 10688.2 10486.2 10752.7 10864.8 11095.8 1996 11189.8 11255.5 11044.2 10978.2 10781.5 10778.6 10808.0 10763.7 10879.2 10715.2 10954.8 11120.3 1997 11244.2 11212.1 11011.5 10966.1 10801.0 10830.3 10634.8 10619.2 10655.3 10690.2 11097.1 11156.8 1998 11175.9 11126.3 11028.9 10830.3 10868.2 10742.1 10665.5 10620.3 10610.9 10697.7 10804.2 11013.3 1999 11203.1 11213.1 11046.1 10835.5 10788.7 10858.8 10621.0 10720.8 10731.3 10652.6 10845.3 10899.3 2000 11098.4 11129.1 10972.0 10974.9 10769.6 10834.7 10674.8 10682.0 10774.5 10687.5 10955.8 11192.7 2001 11231.5 11228.2 11044.7 10941.7 10887.4 10861.6 10796.1 10555.9 10571.4 10696.1 10815.9 11002.1 2002 11203.3 11115.0 11133.7 11066.4 11036.4 10845.0 10782.2 10650.5 10658.5 10970.7 10927.0 11167.5 2003 11253.4 11226.1 11099.5 10920.1 10862.2 10759.0 10642.2 10606.2 10592.5 10699.5 10967.2 11207.1 2004 11210.1 11249.9 11023.1 10931.8 10808.1 10705.9 10507.4 10507.1 10566.1 10721.6 10831.2 11136.9 2005 11226.6 11149.2 11135.3 10936.6 10826.6 10785.9 10702.2 10648.2 10567.4 10692.4 10824.7 11275.0 2006 11214.5 11123.9 11036.4 10931.5 10797.9 10751.9 10564.7 10848.9 10646.1 10651.8 10894.6 10984.6 2007 11195.4 11135.4 11094.0 11011.7 10907.8 10906.8 10826.3 10689.7 10685.0 10763.4 11050.8 11017.7 2008 11121.2 11088.4 11118.2 11077.7 10916.7 10727.0 10726.3 10566.0 10629.2 10651.6 10841.9 10985.2 2009 11192.9 11159.6 11105.4 10932.6 11047.1 10960.0 10774.3 10656.7 10660.3 10772.0 11045.3 11103.2 2010 11307.7 11275.7 11090.0 10904.4 10811.9 10603.1 10570.6 10526.1 10667.9 10661.1 10812.2 11166.9 2011 11260.3 11227.8 11094.3 11043.3 10867.7 10884.8 10747.3 10788.1 10712.1 10779.0 10946.9 11041.7 2012 11095.2 11219.2 11049.4 10963.0 10846.4 10690.7 10640.3 10664.0 10635.2 10796.9 11153.7 11247.3 2013 11274.3 11183.1 11021.7 10910.7 10773.7 10863.0 10657.9 10756.1 10739.6 10734.3 11123.7 11199.0 2014 11231.7 11171.1 11045.2 10865.6 10913.5 10751.2 10626.1 10714.4 10684.3 10729.6 10905.2 11042.1 2015 11200.0 11135.0 11043.0 10866.4 10838.5 10725.5 10570.5 10535.0 10641.3 10816.2 10994.3 11030.0 2016 11140.6 11190.0 11102.4 10975.4 10850.0 10654.1 10587.5 10784.2 10636.1 10813.2 11023.9 11194.5 2017 11290.7 - 11075.9 10931.8 10842.5 10661.8 10673.6 10560.0 10610.7 - - - 2018 - 11194.4 11099.3 10996.9 10922.5 10908.9 10584.2 10680.6 10591.1 10735.7 - 11184.5 2019 11210.7 - - 10997.3 - 10725.0 10685.0 10521.0 10605.0 10918.0 - - 2020 - 11165.0 - 11030.0 10834.6 10767.1 10694.0 10645.4 10706.0 10628.3 10843.0 - 2021 - 11058.0 11276.2 10900.0 10758.7 10727.1 10677.2 10565.9 10641.4 10716.8 10944.7 11045.3 2022 11255.3 11165.7 11066.0 11033.8 10835.0 10846.0 - 10622.3 - 10748.8 10769.4 - 2023 - - 11163.3 10956.0 10798.8 10792.5 10670.0 10668.2 - 10851.8 10902.1 11107.8 2024 11216.2 11193.6 11020.8 10948.7 - - - - - - - -