Casey 12Z 50hPa height 1957 - - - 19883.4 19780.1 19650.0 - - 18948.2 19991.4 20703.8 20708.7 1958 20768.7 20499.8 20268.0 20026.4 - - 19084.1 18843.8 18971.2 19539.2 20162.8 20498.9 1959 20670.3 20602.6 20376.7 20024.3 19665.8 19189.4 18798.2 18722.3 18720.1 19168.4 19764.9 20550.4 1960 - 20526.3 20169.6 20006.8 19671.5 19283.9 18934.2 18882.3 18928.2 19431.2 20390.7 20600.8 1961 20697.5 20609.5 20353.9 19997.5 - - - - - - - 20489.3 1962 20489.6 20456.0 20249.3 19802.2 19529.6 19308.2 18908.2 18919.3 19225.7 19657.9 20441.1 20559.0 1963 - - - - - - - - - - - - 1964 - 20465.3 20251.7 - - - - - - - - - 1965 - - - - - - - - - - - - 1966 - - - - - - - - - - - - 1967 - - - - - - - - - - - - 1968 - - - - - - - - - - - - 1969 20703.3 - - - - - - - - - - - 1970 - - - - - - - - - - - - 1971 20724.0 - - - - - - - - - - - 1972 - - 20295.8 - - - - - - - 20146.7 20573.6 1973 20690.7 - - - - - - - - - 20354.7 20472.0 1974 20723.5 20564.0 20262.8 - - - - - - 19795.4 20560.9 - 1975 - 20596.0 20382.1 - - - - - - 19370.0 20033.2 20606.2 1976 20766.8 20590.9 20356.8 - - - - - - 19566.2 20516.4 20630.8 1977 - 20411.1 - - - - - - - - - - 1978 - - - - - - - - - - - - 1979 - - - - - - - - - - - - 1980 - - - - - - - - - - - - 1981 - - - - - - - - - - - - 1982 - - - - - - - - - - - - 1983 - - - - - - - - - - - - 1984 - - - - - - - - - - - - 1985 - - - - - - - - - - - - 1986 - - - - - - - - - - - - 1987 - - - - - - - - - - - - 1988 - - - - - - 18937.7 19162.8 19762.6 20213.1 20410.7 20570.0 1989 20686.3 20535.6 20235.8 20005.2 19471.8 19164.8 18814.8 18803.7 18939.5 19474.2 19961.1 20736.9 1990 20689.0 20572.2 20288.1 20039.0 19798.0 19281.6 19123.2 18808.0 18975.3 19437.5 19956.3 20567.7 1991 20560.2 20479.8 20288.3 20101.3 19620.8 19281.8 19022.8 18903.0 19178.9 19830.9 20360.8 20675.0 1992 20657.2 20551.5 20270.2 19878.4 19763.9 19605.1 19064.0 18977.9 19109.5 19542.9 20058.0 20451.6 1993 20609.7 20526.3 20271.6 19864.9 19395.2 18988.7 18881.9 18677.8 18909.1 19419.9 20168.5 20356.3 1994 20558.5 20427.5 20178.6 19859.5 19607.9 19642.6 18987.7 18854.1 18986.6 19629.5 20563.9 20372.6 1995 20572.8 20490.6 20265.3 20016.8 19502.9 19232.9 19185.4 18795.5 19061.9 19282.4 20306.4 20293.0 1996 20550.3 20489.7 20254.3 19955.2 19321.0 19371.3 18966.6 18956.3 19636.2 19341.3 19909.2 20592.2 1997 20608.7 20499.1 20274.7 19882.4 19582.0 19211.4 18764.3 18934.3 19125.7 19551.6 20235.8 20418.2 1998 20520.7 20452.7 20172.6 19750.5 19430.4 19393.4 18863.5 18789.4 19056.3 19311.5 19778.7 20150.2 1999 20405.3 20455.5 20200.7 19854.2 19429.1 19272.3 18830.9 18706.2 19022.3 19436.0 19780.8 20113.9 2000 20407.6 20429.6 20171.0 19878.7 19368.4 19168.4 18947.8 18809.1 19224.0 19883.0 20159.1 20581.3 2001 20625.7 20534.8 20289.1 19785.6 19715.1 19382.5 18840.9 18661.3 18783.8 19352.5 19514.8 20313.6 2002 20593.2 20492.3 20373.9 19930.8 19774.8 19359.2 18988.2 19092.4 19906.8 20093.6 20238.3 20549.7 2003 20637.5 20563.2 20312.2 19824.8 19466.8 19288.6 18992.3 18963.9 19166.2 19361.5 19992.6 20508.7 2004 20602.2 20475.1 20251.5 19947.3 19702.4 19269.9 - - - - - - 2005 - - - - - - - - - - - 20590.5 2006 20552.7 20449.7 20268.0 19998.9 19390.2 19057.9 - - 19419.3 19039.6 19677.7 20289.3 2007 20527.0 20472.3 20270.7 19989.6 19661.8 19409.9 18939.4 18943.1 19389.1 19560.5 19947.0 20205.4 2008 20465.5 20458.7 20220.2 19978.0 19742.8 19055.4 18831.7 18740.5 18815.3 19450.7 19959.4 20318.6 2009 20470.3 20487.8 20269.8 19904.6 19601.0 19195.1 19022.7 18723.8 19063.0 19348.0 20186.5 20536.9 2010 20616.3 20534.8 20306.0 19920.3 19410.1 19055.5 18784.0 18735.2 19005.9 19219.3 19640.6 20395.0 2011 20564.0 20434.7 20278.1 20134.4 - - - - - - 20291.0 20140.0 2012 20494.7 20462.6 20277.4 19930.2 19535.1 19182.0 18759.6 18926.3 19263.6 19998.9 20425.3 20609.2 2013 20648.5 20514.4 20185.9 19812.6 19503.9 19214.8 18850.6 18903.1 19788.8 19862.0 20059.0 20587.6 2014 20596.4 20499.0 20217.6 19882.7 19612.9 19223.8 18951.6 18747.9 19147.6 19603.4 20218.7 20217.3 2015 20564.5 20480.0 20220.3 19853.0 19516.9 19201.2 18787.5 18722.9 18711.2 18975.6 19771.9 20161.9 2016 20447.0 20410.4 20130.0 19848.0 19558.1 19053.8 18796.7 18873.7 19201.6 19564.1 20444.0 20544.3 2017 20630.3 20535.2 20224.3 - - 19090.7 18920.0 18881.5 19458.2 19799.6 19854.1 20573.7 2018 20598.7 20485.9 20218.3 20044.5 19564.3 19182.0 18843.1 18848.7 18786.1 19276.7 19675.7 20431.3 2019 20487.4 20482.5 20249.7 19963.8 19576.0 19186.4 19094.1 19239.2 19932.1 20196.1 20537.0 20566.5 2020 20650.6 20601.1 20247.6 20022.8 19620.3 19086.4 19037.6 19203.2 19057.4 19159.0 19473.1 20134.3 2021 20471.7 20474.4 20232.9 19921.4 19348.6 19022.6 18794.2 18745.7 18900.4 19331.5 19612.1 20113.8 2022 20477.1 20489.3 20215.9 19859.6 19591.5 19390.4 18853.9 18791.3 18915.2 19264.2 19625.0 20101.0 2023 20460.0 20446.7 20224.6 19952.9 19383.2 19291.2 18811.7 18674.5 19137.6 19490.4 19559.3 20287.7 2024 20399.7 20367.2 20175.9 19827.9 - - - - - - - -