Syowa 00Z 50hPa height 1968 - - 20238.2 19725.8 19548.6 18981.6 18466.2 18480.3 18433.5 19207.0 20468.9 20638.5 1969 20714.4 20497.4 20118.1 19796.0 19380.6 19052.0 18522.7 18503.5 18578.9 19008.4 19728.2 20482.0 1970 20607.3 20446.0 20258.8 19721.2 19321.6 19073.3 18564.5 18428.5 18618.9 18976.5 20022.1 20471.5 1971 20756.9 20576.4 20179.0 19753.5 19497.7 18878.3 18545.6 18650.0 18695.3 19042.8 20087.4 20599.7 1972 20675.4 20470.8 20166.2 19797.0 19243.1 18911.3 18514.2 18694.4 18588.5 19071.2 19999.0 20492.6 1973 20617.8 20439.4 20105.5 19752.7 19283.1 19005.6 18553.6 18397.3 18770.3 18940.9 19689.8 20491.6 1974 20631.7 20433.1 20108.0 19778.1 19371.7 19002.0 18653.7 18589.9 18732.7 19140.9 20093.1 20662.0 1975 20744.7 20529.1 20277.2 19682.0 19408.3 18852.8 18700.4 18679.8 18686.2 19025.9 19907.8 20538.0 1976 20689.8 20495.6 20118.5 19730.9 19143.8 18944.4 18521.1 18426.3 18579.6 18775.7 20022.9 20691.8 1977 20687.6 20450.0 20089.4 19708.5 19463.7 19110.5 18661.6 18677.1 18646.2 19189.4 19780.5 20546.9 1978 20598.6 20485.8 20206.0 19803.9 19321.5 18927.6 18673.8 18381.8 18639.8 19168.7 19951.6 20544.4 1979 20676.7 20445.3 20125.4 19838.0 19247.0 18817.5 18463.1 18420.3 18548.1 19456.6 20093.7 20655.4 1980 20698.2 20535.7 20240.9 19955.8 19527.8 19065.5 18787.4 18742.2 18760.5 18933.0 19830.8 20491.3 1981 20581.7 20499.2 20171.8 19661.6 19322.1 18905.5 18847.0 18762.3 18817.5 19121.9 19649.4 20469.8 1982 20532.4 20441.0 20078.4 19754.7 19186.2 18826.9 18565.0 18535.8 18601.6 18903.5 20083.2 20552.5 1983 20569.4 20461.6 20116.9 19753.5 19370.7 18844.2 18525.9 18461.8 18767.3 18893.1 19625.1 20417.4 1984 20536.3 20428.4 20152.6 19729.3 19484.7 18879.5 18607.0 18534.0 18607.4 18963.0 19614.1 20493.0 1985 20609.3 20392.6 20172.9 19858.0 19273.7 18795.8 18592.0 18509.5 18523.9 18715.5 19296.4 20144.5 1986 20510.8 20521.5 20179.4 19705.9 19431.2 18993.8 18708.6 18648.9 18520.6 19050.7 19514.1 20162.9 1987 20597.5 20403.4 20164.1 19788.7 19252.7 18871.6 18718.7 18342.2 18508.8 18789.6 19334.6 20215.9 1988 20606.4 20396.5 20183.8 19729.5 19308.9 19099.5 18517.2 18642.0 19066.3 19363.2 19957.3 20556.0 1989 20570.2 20462.5 20183.1 19717.3 19220.0 18834.7 18488.4 18426.7 18653.8 18831.0 19531.1 20444.2 1990 20566.5 20468.9 20176.2 19847.9 19464.9 18783.1 18821.3 18503.8 18381.4 19109.0 19677.9 20180.8 1991 20434.6 20435.4 20136.1 19723.1 19274.6 19101.2 18692.8 18573.6 18634.2 19276.1 19593.6 20603.3 1992 20584.6 20482.4 20137.3 19679.2 19463.5 19129.5 18747.2 18438.2 18496.6 18818.8 19465.6 20242.3 1993 20483.8 20411.3 20106.9 19720.7 19188.2 18783.4 18589.5 18463.8 18642.6 18871.9 19398.6 20095.0 1994 20423.6 20366.5 20037.7 19797.7 19338.6 19116.9 18639.8 18466.3 18526.3 18904.0 19710.1 20351.0 1995 20505.2 20438.5 20162.6 19768.0 19221.1 18814.7 18635.9 18675.2 18600.8 18765.9 19353.1 20013.9 1996 20479.5 20438.6 20132.9 19791.9 19194.8 18948.3 18771.1 18764.5 18869.2 18731.3 19329.6 20153.7 1997 20576.8 20480.7 20101.3 19760.8 19279.8 18858.5 18575.6 18546.8 18783.9 18685.7 19913.2 20324.0 1998 20467.6 20374.2 20086.1 19644.2 19291.0 18932.0 18595.8 18470.6 18508.5 18765.9 19181.4 19880.0 1999 20426.2 20411.3 20124.8 19608.8 19276.8 18962.7 18578.7 18596.5 18726.3 18751.2 19111.6 19586.6 2000 20370.9 20373.8 20031.9 19784.8 19242.1 18916.8 18574.9 18515.0 18749.4 18923.2 19528.3 20511.1 2001 20562.0 20477.7 20153.4 19763.6 19302.4 18994.3 18698.7 18390.1 18475.3 18623.3 19114.4 20067.1 2002 20529.4 20397.6 20239.6 19933.2 19624.9 19201.0 18797.6 18578.1 18867.7 19686.2 20018.0 20466.4 2003 20539.5 20487.3 20206.0 19722.1 19246.7 18913.9 18549.7 18473.8 18477.6 18726.8 19685.9 20393.3 2004 20519.5 20478.3 20116.4 19818.2 19294.1 18819.4 18449.4 18423.6 18663.7 18854.9 19434.2 20323.4 2005 20549.4 20416.2 20222.5 19695.1 19366.5 18885.3 18614.8 18537.7 18524.0 18900.2 19402.7 20513.5 2006 20508.9 20346.5 20142.3 19771.9 19195.9 18783.1 18548.7 18658.6 18505.9 18562.3 19127.8 19853.1 2007 20436.9 20384.7 20211.9 19823.4 19330.6 19116.0 18706.1 18597.5 18565.5 18792.2 19622.6 20030.0 2008 20417.8 20341.8 20186.3 19902.5 19465.1 18887.8 18626.4 18430.9 18508.8 18748.7 19327.8 19872.0 2009 20418.2 20412.6 20188.5 19713.9 19469.3 19131.8 18729.7 18542.3 18617.0 18763.9 20098.0 20292.3 2010 20575.7 20515.0 20169.7 19698.2 19192.9 18748.9 18482.7 18427.5 18616.3 18736.8 19250.7 20202.0 2011 20493.7 20465.6 20142.3 19852.3 19360.3 18969.6 18669.0 18718.7 18593.8 18985.2 19290.7 19951.4 2012 20346.5 20419.3 20164.5 19813.2 19284.3 18818.2 18628.3 18597.2 18647.6 19063.3 20194.8 20569.7 2013 20585.0 20473.3 20135.7 19684.1 19194.8 18969.0 18635.9 18634.2 18864.1 19062.7 20111.3 20513.2 2014 20526.7 20433.2 20125.9 19668.3 19359.7 18877.8 18509.4 18583.9 18606.8 18841.4 19514.0 20145.8 2015 20465.3 20415.8 20113.2 19656.7 19200.0 18832.8 18477.2 18381.3 18548.0 18749.0 19298.0 19888.0 2016 20360.4 20422.5 20128.2 19724.6 19226.3 18804.1 18507.9 18707.4 18637.1 18930.4 19814.3 20446.5 2017 20578.0 20476.9 20148.1 19702.1 19213.5 18769.0 18555.7 18444.0 18727.7 19037.3 19801.9 20487.9 2018 20527.7 20434.8 20142.9 19847.9 19289.3 18977.5 18588.6 18471.0 18472.8 18795.2 19433.7 20477.3 2019 20497.1 20489.2 20176.1 19798.3 19311.7 18803.6 18639.0 18427.2 18976.1 19240.0 20156.0 20520.0 2020 20579.7 20486.9 20174.6 19802.1 19218.5 18821.1 18604.8 18513.7 18688.6 18603.9 19032.8 19695.2 2021 20385.3 20338.5 20280.4 19725.0 19210.0 18853.3 18592.7 18429.7 18512.9 18763.3 19173.6 19865.7 2022 20520.0 20399.6 20148.3 19790.9 19214.8 18895.7 18560.7 18474.5 18443.1 18700.7 19234.5 19790.0 2023 20407.7 20352.6 20225.8 19821.0 19295.8 18972.6 18554.8 18630.0 18744.8 18871.7 19295.7 20090.6 2024 20370.0 20401.0 20085.8 19767.2 - - - - - - - -