Mawson 00Z 500hPa temperature 1957 - - - -32.6 -37.4 -35.0 -37.7 -35.8 -40.7 -34.1 -32.0 -30.8 1958 -28.4 -29.8 -30.7 -35.9 -36.0 -36.8 -39.9 -38.8 -40.1 -37.4 -33.2 -34.2 1959 - - - - - - - - - - - - 1960 - - -35.2 -35.4 -36.0 -40.5 -40.7 -39.9 -40.0 -37.6 -37.3 -32.9 1961 -32.9 -31.0 -36.6 -36.1 -36.3 -35.8 -40.6 -40.5 -35.3 -36.3 -33.8 -35.4 1962 -34.2 -32.3 -35.5 -36.9 -38.3 -35.1 -41.8 -43.3 -39.7 -39.7 -35.3 -32.4 1963 -29.2 -29.7 -34.9 -37.6 -38.2 -36.5 -40.6 -38.6 -35.4 -39.1 -37.7 -30.9 1964 -29.3 -31.0 -34.3 -36.2 -38.9 -39.5 -38.3 -38.8 -42.1 -39.7 -34.1 -30.8 1965 -30.3 -31.9 -33.7 -36.1 -33.2 -38.9 -42.1 -39.8 -41.6 -38.6 -36.2 -30.9 1966 -32.6 -32.5 -31.4 -37.9 -36.0 -40.3 -38.8 -39.8 -40.2 -40.8 -33.7 -31.3 1967 -29.5 -33.5 -34.8 -38.1 -36.6 -37.8 -38.6 -39.8 -38.7 -36.7 -33.8 -31.8 1968 -31.9 -31.4 -33.9 -35.3 -34.6 -38.7 -42.2 -39.2 -42.7 -39.2 -34.9 -31.1 1969 -28.6 -30.7 -35.3 -35.3 -36.9 -36.6 -40.8 -40.8 -40.8 -38.1 -34.1 -29.5 1970 -32.1 -33.7 -30.7 -35.9 -34.9 -38.3 -38.3 -39.9 -41.5 -39.1 -33.1 -31.6 1971 -26.9 -29.3 -32.7 -37.1 -38.3 -42.3 -41.5 -40.3 -39.9 -38.6 -35.4 -28.7 1972 -29.0 -31.5 -34.4 -35.7 -37.8 -39.3 -40.1 -36.0 -36.3 -36.7 -35.3 -30.3 1973 -30.4 -31.3 -34.5 -35.8 -35.3 -36.0 -41.1 -42.0 -37.2 -38.2 -35.0 -33.0 1974 - - - - - - - - - - - - 1975 - - -34.0 -37.6 -37.3 -37.5 -39.9 -41.5 -40.7 -39.0 -34.8 -31.5 1976 -30.6 -32.6 -34.8 -37.7 -40.4 -39.8 -41.8 -40.7 -41.3 -40.9 -34.8 -30.3 1977 -30.2 -32.3 -35.5 -38.4 -36.9 -36.5 -35.8 -35.5 -40.0 -38.3 -35.0 -34.1 1978 -32.5 -31.8 -34.4 -37.0 -36.5 -40.5 -38.5 -42.3 -38.7 -36.9 -32.9 -31.7 1979 -29.4 -31.8 - - - - - - - - - - 1980 - - - - - - - - - - - - 1981 - - - - - - - - - - - - 1982 - - - - - - - - - - - - 1983 - - - - - - - - - - - - 1984 - - - - - - - - - - - - 1985 - - - - - - - - - - - - 1986 - - - - - - - - - - - - 1987 - - - - - - - - - - - - 1988 - - - - - - - - - - - - 1989 -30.1 -30.3 -33.2 -36.4 -38.8 -37.5 -39.2 -37.9 -38.2 -37.6 -34.6 -31.6 1990 -29.4 -29.9 -33.9 -33.3 -34.9 -40.4 -33.7 -40.0 -43.6 -36.1 -32.7 -31.9 1991 -33.1 -29.4 -29.7 -37.9 -37.4 -35.7 -35.9 -38.5 -40.0 -38.2 -35.1 -27.5 1992 -31.2 -31.1 -31.6 -33.6 -34.2 -35.3 -37.9 -41.3 -41.9 -38.8 -35.6 - 1993 -29.6 -31.0 -34.0 -36.4 -39.5 -39.1 -37.8 -38.7 -38.2 -37.1 -36.2 -32.1 1994 -31.9 -31.5 -34.0 -34.8 -38.0 -35.1 -37.8 -40.0 -39.4 -37.8 -34.5 -32.4 1995 -30.5 -28.7 -33.7 -33.9 -37.6 -40.4 -38.0 -40.1 -42.7 -37.4 -34.8 -32.5 1996 -30.3 -29.4 -32.7 -34.1 -39.2 -35.8 -37.6 -37.9 -35.6 -37.5 -33.8 -31.7 1997 -29.6 -31.4 -34.0 -35.5 -37.5 -37.2 -40.1 -38.7 -41.7 -38.8 -34.9 -30.7 1998 -30.2 -32.2 -31.8 -36.0 -37.9 -37.2 -38.2 -40.0 -38.1 -38.2 -34.3 -32.0 1999 -29.4 -32.4 -35.1 -39.1 -37.5 -35.6 -41.1 -39.4 -37.8 -39.1 -34.9 -35.0 2000 -31.8 -32.3 -35.7 -34.6 -38.5 -33.7 -39.0 -38.5 -37.8 -38.9 -33.7 -30.0 2001 -29.1 -31.7 -33.9 -36.2 -36.1 -38.0 -37.1 -41.6 -40.0 -38.4 -36.1 -32.8 2002 -31.9 -30.9 -32.9 -33.5 -34.9 -37.0 -37.1 -39.0 -39.4 -34.2 -35.3 -32.4 2003 -28.9 -32.1 -33.5 -36.5 -37.4 -40.3 -39.6 -38.6 -38.7 -39.4 -33.8 -30.5 2004 -30.4 -29.1 -33.0 -34.8 -38.0 -37.4 -42.2 -42.3 -40.6 -37.3 -35.6 -31.9 2005 -31.5 -29.0 -32.0 -35.5 -37.2 -35.9 -37.7 -38.6 -39.2 -37.8 -36.3 -30.1 2006 -30.3 -33.4 -34.7 -36.1 -36.1 -38.2 -41.7 -37.7 -39.5 -37.3 -36.1 -33.2 2007 -30.2 -31.6 -35.2 -33.4 -34.9 -36.3 -36.9 -39.1 -40.5 -36.2 -34.1 -31.4 2008 -32.5 -32.8 -32.2 - - - - - - - - - 2009 - - - - - - - - - - - - 2010 - - - - - - - - - - - - 2011 - - - - - - - - - - - - 2012 - - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - - - - 2018 - - - - - - - - - - - - 2019 - - - - - - - - - - - - 2020 - - - - - - - - - - - - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - - - - - - - - - 2024 - - - - - - - - - - - -