Mcmurdo 00Z 30hPa height 1956 - - - - - - - - 22007.5 - - - 1957 - - - - - 21994.8 - 21251.5 21499.0 - - 24320.9 1958 - - 23732.0 - - - - - 21394.8 22237.3 23468.8 24141.7 1959 - - - - 22603.5 - - - 21387.4 21993.7 - - 1960 - - - - - - - - - - - - 1961 24254.6 23966.6 23492.6 22904.6 - - - - 21487.0 - 23050.9 - 1962 24076.8 23930.5 23661.2 22783.4 - - - 21283.2 21758.7 22467.9 24025.3 - 1963 - 24062.0 - - - - - - 21475.3 22049.7 23515.9 24138.4 1964 24276.1 24051.5 23551.0 22746.9 22091.4 21547.1 21457.6 21321.7 21784.0 22927.0 24141.5 24254.9 1965 24247.6 24062.0 23634.5 22810.9 - - - - 21406.9 22062.8 - - 1966 24221.6 23976.5 - - - - - - 21235.1 - - - 1967 24340.9 24034.2 23523.9 22659.4 - 21574.9 21331.2 21164.8 21770.9 22561.3 23886.4 24194.8 1968 24282.0 24092.2 23515.2 23008.2 22174.7 - - - - 22708.9 24169.9 24337.6 1969 24354.4 24036.6 23505.4 23040.5 - - - - - 21982.2 23508.7 24108.2 1970 24212.4 24001.3 23554.6 23097.6 - - - - 21692.2 - - - 1971 - - - - - - - - - - - - 1972 - - - - - - - - - - - - 1973 - - - - - - - - - - - - 1974 24264.6 23950.7 - - - - - - - 22358.1 - - 1975 - - - - - - - - 21589.5 22051.9 - 24307.4 1976 - - - - - - - - - - - 24270.1 1977 24424.9 - 23441.4 22772.3 - - - - 21460.9 22494.2 24071.8 - 1978 24315.6 - - - - - - - - 22532.7 - - 1979 - - - 23043.1 - - - - - - - - 1980 - - - - - - - - - - - - 1981 - - - - - - - - - - - - 1982 - - - - - - - - - - - - 1983 - - - - - - - - - - - - 1984 24397.5 - 23645.8 - - - - - 21587.4 22481.3 23799.1 24146.9 1985 24348.9 23983.0 - - - - - - - - 23162.5 - 1986 - - - - - - - - - - - - 1987 - - - - - - - - - - - 24255.4 1988 - 24053.1 - - - - - - 21848.2 23067.0 24030.0 24258.8 1989 - 24095.7 23601.0 - - - - - - - - - 1990 24269.9 24015.7 23443.8 22850.8 - - - - - - - - 1991 - 24131.1 - - - - - - 21933.1 - - - 1992 - - - - - - - - 21440.9 22662.0 - - 1993 - - - - - - - - - - 23578.2 24127.1 1994 - - - - - - - - - - - - 1995 24183.0 24041.1 - - - - - - - - 23368.3 23938.6 1996 24113.1 23949.0 - - - - - - 21867.0 21818.5 - - 1997 - - 23582.0 - - - - - - - - - 1998 - - - - - - - - - - 22977.5 23707.3 1999 - 23882.0 23433.0 22839.5 - - - - - - 22698.9 - 2000 - 23829.0 23434.0 - - - - - - - - - 2001 - - - - - - - - - - - - 2002 - - - - - - - - - - - - 2003 - - - - - - - - - 22472.5 23401.5 - 2004 - - 23462.2 - - - - - - 22713.5 23038.3 - 2005 - - 23293.0 22896.7 - - - - 21911.1 - - 24018.6 2006 - - - 22890.6 - - - - - - - - 2007 - - 23553.2 22910.4 22184.6 - - - 21958.2 22749.1 - - 2008 - - - - - - - - - 22252.6 22655.6 - 2009 - - - - - - - - - 22322.1 23520.6 - 2010 - - 23628.0 - - - - - - - - - 2011 - - - - - - - - - - - - 2012 - - 23494.4 22866.7 - - - - - 22691.4 - - 2013 - - 23298.2 22836.2 - - - - 22100.0 22804.5 23293.8 - 2014 - - 23470.0 22953.3 - - - - 21940.7 22581.2 23542.4 - 2015 - - - 22754.7 - - - - - 21599.3 22559.6 23336.2 2016 - - - 22734.3 22384.2 - - - - 22576.0 23866.5 - 2017 - 23979.3 23517.0 - - - - - 21814.4 22592.6 23437.4 23989.0 2018 24181.1 23842.9 23371.4 22914.2 22245.9 - - - 21493.3 21888.1 22979.0 23857.4 2019 24076.2 23948.2 23423.3 22773.0 - - - - 22508.6 23057.0 24019.3 24168.3 2020 - 24035.0 23394.3 22810.0 22325.5 - - - - 21672.6 22188.9 23499.2 2021 24004.1 23888.3 23455.8 22836.2 22082.1 - - - - 21824.2 22445.0 23341.8 2022 23928.9 23964.0 23472.7 22686.9 - - - - - 21736.0 22553.3 23734.8 2023 23945.5 23835.5 23401.5 22861.8 - - - - 21560.0 22085.5 22593.1 23311.1 2024 23895.5 23771.9 23442.3 22650.8 - - - - - - - -