Syowa 12Z 30hPa height 1959 - - - - - - - - - - - - 1960 - - - - - - - - - - - - 1961 - 24187.2 23701.1 23322.0 - - - - 21781.2 22512.8 23508.2 23977.6 1962 - - - - - - - - - - - - 1963 - - - - - - - - - - - - 1964 - - - - - - - - - - - - 1965 - - - - - - - - - - - - 1966 - - 23990.5 - - - - - 21625.0 - 23810.3 24331.8 1967 24373.7 24101.5 - - - 21848.4 - 21463.1 21789.1 - 23700.4 24289.6 1968 24293.8 24138.4 - - - - - - - - - - 1969 - - - - - - - - - - - - 1970 - - - - - - - - - - - - 1971 - - - - - - - - - - - - 1972 - - - - - - - - - - - - 1973 - - - - - - - - - - - - 1974 - - 23570.1 23057.6 22432.3 21900.4 21527.3 21513.7 21972.4 22521.3 23794.8 24306.5 1975 24397.1 24193.0 23753.7 22913.8 22396.7 21706.3 21568.6 21715.1 21814.2 22320.6 23500.3 24161.0 1976 24277.5 24084.7 23651.0 23004.1 - 21870.7 21335.9 21360.3 21742.5 22088.6 23635.6 24308.3 1977 24318.4 24039.2 23541.6 22972.1 22506.7 22104.9 21447.6 21510.1 21781.8 22549.5 23422.0 24210.3 1978 24267.4 24113.6 23713.3 23069.6 22350.3 21771.8 21483.0 21299.9 21814.8 22569.7 23620.3 24194.3 1979 24291.8 24089.9 23616.4 23051.1 22275.5 21707.4 21315.5 21399.4 21607.7 22995.0 23730.7 24277.0 1980 24365.4 24068.3 23676.2 23190.4 22648.0 22014.6 21631.7 21653.7 21718.1 22165.9 23377.2 24099.9 1981 24159.6 23964.7 23514.9 22853.7 22258.8 21878.7 21674.6 21579.8 21827.9 22366.4 23268.4 24042.2 1982 24086.5 23936.8 23425.7 22926.6 22136.7 21694.1 21425.0 21369.5 21544.9 21886.2 23682.7 24137.6 1983 24142.7 23982.2 23469.3 22864.0 22415.8 21706.1 21381.5 21312.9 21809.6 22073.7 23192.9 23998.4 1984 24107.1 23932.1 23507.6 22908.7 22503.9 21751.0 21393.4 21369.3 21585.3 22236.3 23193.4 24068.3 1985 24161.6 23863.2 23486.2 23004.2 22280.6 21626.9 21445.3 21373.4 21469.9 21838.3 22803.5 23754.4 1986 24075.3 24010.9 23522.8 22854.9 22488.3 21869.5 21563.0 21509.1 21496.1 22314.6 23089.1 23769.5 1987 24159.1 23885.9 23511.4 22961.6 22228.6 21686.6 21551.4 21140.1 21457.9 21899.9 22769.0 23853.0 1988 24182.9 23875.7 23498.0 22861.4 22296.4 21976.9 21348.2 21634.0 22313.6 22780.8 23589.9 24132.9 1989 24130.0 23902.4 23480.3 22861.4 22257.7 21707.5 21306.4 21242.0 21623.6 22039.7 23049.8 24043.7 1990 24132.9 23941.9 23502.7 23014.6 22504.3 21629.8 21640.7 21369.5 21312.1 22340.9 23155.9 23776.1 1991 24006.1 23912.9 23492.2 22906.8 22291.2 22012.2 21582.2 21454.1 21645.8 22746.2 23195.8 24181.8 1992 24141.4 23980.6 23488.0 22803.1 22495.7 22092.9 21628.0 21268.6 21488.4 21986.6 23001.0 23851.8 1993 24071.8 23907.4 23467.7 22879.6 22175.7 21599.0 21422.1 21313.6 21639.8 22068.6 22930.8 23738.0 1994 24007.4 23831.8 23365.4 22971.9 22314.7 22078.3 21449.1 21252.2 21437.3 22157.6 23362.8 23964.0 1995 24072.2 23916.2 23487.6 22889.7 22202.7 21666.8 21471.5 21534.0 21635.1 21820.6 22890.6 23592.1 1996 24049.5 23906.1 23445.4 22916.7 22104.5 21865.8 21600.9 21625.1 21803.1 21745.4 22728.3 23767.7 1997 24142.3 23945.5 23410.4 22840.4 22271.1 21702.4 21404.4 21405.1 21779.4 21757.4 23484.3 23905.9 1998 24018.8 23843.4 23399.1 22790.2 22268.8 21871.7 21381.7 21258.9 21413.1 21844.5 22602.2 23492.0 1999 23989.8 23863.7 23435.2 22732.2 22277.6 21824.8 21379.6 21366.3 21703.2 21852.0 22496.8 23169.5 2000 23953.2 23869.7 23353.4 22922.4 22187.7 21777.7 21358.1 21315.4 21748.2 22219.0 23029.5 24072.4 2001 24138.8 23920.4 23491.2 22904.3 22281.6 21883.5 21505.1 21164.3 21387.5 21697.9 22507.3 23701.7 2002 24104.7 23898.1 23609.7 23082.1 22688.0 22228.6 21660.5 21411.3 21957.4 23067.7 23620.5 24019.4 2003 24068.2 23949.2 23506.3 22854.0 22191.2 21784.6 21325.9 21241.2 21380.9 21859.3 23220.6 23974.0 2004 24068.2 23942.4 23458.1 23001.3 22295.5 21686.7 21272.0 21311.8 21731.9 22071.0 22989.9 23938.4 2005 24100.7 23880.3 23537.2 22802.5 22384.1 21746.9 21411.9 21363.9 21448.2 22134.3 22952.6 24057.1 2006 24056.5 23803.2 23478.4 22918.9 22134.4 21619.3 21394.4 21413.3 21376.6 21503.6 22457.1 23480.7 2007 23997.0 23845.7 23538.9 22900.1 22316.4 21972.8 21502.1 21394.5 21432.4 21871.5 23089.3 23592.2 2008 23963.9 23826.3 23521.0 23075.8 22641.6 21707.1 21415.4 21191.7 21386.5 21876.5 22771.2 23460.8 2009 23973.6 23876.5 23515.7 22829.6 22498.5 22001.8 21543.7 21322.3 21549.6 21757.3 23667.2 23925.3 2010 24131.9 23971.8 23480.3 22831.9 22182.1 21612.0 21330.4 21261.1 21537.9 21838.2 22685.5 23735.9 2011 24049.3 23914.3 23448.6 23004.5 22365.0 21828.2 21446.4 21519.4 21458.9 22183.9 22678.7 23535.5 2012 23926.5 23886.4 23511.9 22913.8 22237.6 21717.9 21498.2 21456.1 21600.4 22367.9 23726.0 24129.3 2013 24137.9 23941.1 23442.3 22779.0 22180.7 21814.5 21424.4 21451.8 21961.3 22341.3 23618.3 24054.8 2014 24058.3 23908.9 23451.1 22805.7 22347.2 21741.2 21318.7 21376.2 21495.3 21916.0 22999.6 23740.0 2015 24014.3 23860.8 23418.3 22806.2 22141.7 21743.3 21261.6 21169.3 21509.6 21792.0 22736.4 23432.3 2016 23929.3 23856.1 23426.8 22806.6 22222.3 21694.1 21320.4 21507.9 21563.5 22052.6 23330.0 24022.3 2017 24111.4 23912.1 23431.6 22847.4 22181.8 21655.0 21366.9 21272.1 21786.2 22181.0 23254.8 24025.7 2018 24046.7 23869.6 23430.0 23008.3 22263.3 21831.8 21377.0 21245.0 21360.4 21916.6 22768.9 24024.2 2019 24031.7 23934.4 23513.8 22936.7 22299.3 21657.0 21488.7 21274.5 22253.4 22435.2 23707.9 24044.3 2020 24114.0 23961.6 23481.5 22963.6 22237.9 21657.3 21448.6 21353.0 21617.9 21567.5 22248.5 23206.7 2021 23929.0 23821.7 23593.2 22779.1 22185.4 21688.6 21402.1 21261.0 21396.4 21845.2 22441.9 23403.1 2022 24044.6 23861.2 23454.3 22857.1 22174.4 21736.1 21358.5 21232.8 21334.1 21729.3 22664.8 23389.0 2023 23961.6 23804.0 - - - - - - 21656.4 21912.3 - - 2024 - 23835.4 - - - - - - - - - -