Mcmurdo 00Z 500hPa temperature 1956 - - - - - - - -42.8 -42.3 -42.1 - - 1957 - - - -41.0 -39.3 -42.0 -42.6 -42.9 -41.5 -37.8 -37.0 -34.3 1958 - - -37.6 -36.2 -40.7 -42.0 -44.5 -41.4 -45.7 -42.2 -40.1 -36.9 1959 -32.5 -33.5 - - -41.7 -44.0 -42.4 -43.2 -44.8 -43.4 -38.0 -37.0 1960 -32.1 -35.7 - - - - - - - - - - 1961 -35.4 -34.0 -39.3 -39.0 -40.8 -41.5 -42.8 -44.6 -41.6 -39.5 -38.0 - 1962 -37.0 -33.5 -37.2 -41.2 -43.4 -43.6 -45.2 -41.5 -41.4 -40.7 -37.5 -36.9 1963 -32.7 -35.6 -37.8 -40.4 -43.6 -44.0 -42.6 -41.8 -43.4 -43.4 -37.6 -35.6 1964 -36.0 -38.1 -37.4 -40.6 -43.0 -42.4 -41.0 -40.9 -42.8 -41.0 -37.9 -34.8 1965 -35.0 -33.5 -37.7 -39.5 -42.8 -41.6 -42.2 -45.9 -41.4 -40.2 -37.3 -34.4 1966 -35.8 -35.2 -37.1 -38.3 -41.9 -42.2 -42.0 -47.0 -45.2 -42.5 -37.7 -35.6 1967 -32.2 -34.0 -38.5 -41.5 -41.4 -42.3 -43.9 -44.7 -42.5 -42.0 -36.5 -33.4 1968 -34.5 -34.7 -39.2 -39.9 -40.7 -43.0 -45.2 -44.8 -43.0 -41.1 -39.0 -37.0 1969 -33.6 -38.1 -38.3 -38.7 -40.1 -40.3 -44.8 -44.3 -40.9 -41.7 -39.1 -35.3 1970 -31.8 -35.2 -36.6 -38.5 -42.1 -40.4 -40.9 -43.5 -42.3 -39.0 -39.0 -34.6 1971 -33.3 -36.3 - -41.8 -40.2 -41.2 -43.3 -41.5 -41.5 -38.7 -38.0 -36.0 1972 -30.3 -33.9 -39.3 -37.9 -39.6 -39.7 -41.3 -41.9 -40.1 -42.5 -38.5 -34.8 1973 -32.8 -37.5 -37.9 -36.8 -38.0 -40.1 -39.8 -42.4 -40.0 -40.2 -35.6 -35.2 1974 -31.2 -34.7 -38.8 -42.8 -42.2 -36.7 -42.4 -39.8 -43.4 -39.7 -36.2 -32.8 1975 -34.3 -36.4 -37.3 -39.2 -40.0 -40.7 -41.6 -43.5 -43.5 -41.4 -35.3 -34.1 1976 -29.7 -33.4 -38.1 -41.0 -40.8 -43.0 -39.4 -42.6 -43.5 -45.4 -38.5 -32.9 1977 -31.0 -37.3 -39.6 -39.2 -41.6 -42.6 -43.2 -40.3 -45.2 -39.8 -38.8 -34.4 1978 -35.6 -33.1 -37.1 -39.8 -41.7 -42.0 -40.2 -45.7 -42.7 -41.9 -37.4 -36.5 1979 -35.2 -37.4 -40.8 -39.1 -40.8 -40.9 -44.2 -43.9 -42.5 -43.6 -36.9 -33.9 1980 -30.9 -35.3 -35.7 -38.1 -40.5 -43.5 -42.4 -42.2 -41.2 -41.3 -37.0 -35.5 1981 -35.2 -34.4 -37.7 -38.8 -41.8 -41.7 -42.7 -40.9 -40.2 - - - 1982 - - - -42.6 -39.1 -41.2 -43.0 -42.6 - -42.2 -38.7 -32.2 1983 - - - -37.0 -36.2 -39.2 -41.6 - - - -39.3 -31.8 1984 -30.9 -34.6 -36.2 - -38.6 -41.7 -46.4 -42.9 -42.2 -39.5 -35.3 -34.2 1985 -30.2 -37.7 -36.2 -40.5 -42.4 -44.9 -43.0 -40.9 -43.6 -40.9 -37.4 -35.8 1986 - -34.1 - - - - - - - -41.3 -38.5 -32.6 1987 -32.5 -36.3 -38.0 -39.4 -41.1 - -42.2 -43.1 -40.2 -38.6 -37.6 -34.8 1988 -34.9 -35.5 -40.1 -37.7 -41.4 -40.4 -40.2 -40.9 -40.9 -37.8 -37.6 -33.8 1989 -34.7 -34.5 -37.7 -38.0 -42.4 -44.1 -42.8 -43.8 -40.2 -39.4 -39.0 -33.2 1990 -33.3 -37.8 -41.4 -41.2 -40.8 -39.9 - -42.7 -41.2 -38.1 - -30.1 1991 -28.0 -33.5 -37.5 -36.4 -40.0 -38.2 -39.7 -38.0 -40.8 -35.6 -36.4 -32.4 1992 -33.9 -35.0 -36.2 -39.9 -40.0 - -41.5 -38.4 -44.0 -40.9 -34.2 -34.1 1993 -31.6 -33.5 -36.8 -39.6 -43.1 -41.7 -42.2 -41.1 -41.2 -41.2 -37.8 -34.5 1994 -33.6 -37.4 - - - -42.7 -37.7 -46.5 - -39.4 -38.0 -34.6 1995 -34.3 -35.3 - -39.9 -41.1 -41.5 -40.7 -41.1 - -40.9 -36.7 -35.5 1996 -35.9 -35.4 -35.3 -38.8 -42.0 -42.5 -43.6 -39.5 -42.5 -41.2 -36.1 -33.7 1997 -34.3 -35.5 -36.5 - - - - - -41.1 -37.8 -32.0 -35.5 1998 -36.1 -31.7 -34.2 -38.0 -36.3 -37.3 -39.7 -37.4 -38.6 -37.4 -37.9 -35.1 1999 -34.8 -35.6 -39.1 -38.9 -41.3 -38.7 -41.1 -41.8 -40.4 -39.8 -37.2 -35.0 2000 -35.8 -36.1 -39.2 -40.7 -40.1 -41.3 -41.0 -43.1 -40.5 -40.2 -36.2 -35.3 2001 -33.9 -35.6 -37.8 -38.9 -40.5 -41.0 -41.7 -43.3 -41.5 -39.6 -37.7 -33.6 2002 -31.5 -35.9 -34.8 -41.2 -38.3 -38.7 -44.7 -44.2 -38.8 -39.6 -36.8 -34.0 2003 -31.6 -34.7 -38.3 -41.1 -41.4 -40.7 -40.5 -41.5 -40.0 -41.5 -36.5 -33.3 2004 -31.2 -31.6 -36.9 -40.7 -42.8 -38.6 -44.1 -40.8 -42.7 -40.7 -36.5 -33.7 2005 -32.1 -34.1 -39.0 -41.5 -40.5 -40.0 -40.9 -41.6 -40.0 -38.4 -37.6 -32.3 2006 -33.3 -36.0 -37.1 -40.1 -41.1 -42.1 -42.7 - -41.2 -38.7 -35.2 -36.3 2007 -31.3 -34.3 -34.6 -39.5 -38.4 -40.3 -40.6 -41.0 -42.2 -40.0 -38.0 -35.6 2008 -31.9 -37.9 -39.0 -37.3 -40.9 -39.8 -44.0 -42.2 -41.8 -39.5 -37.7 -33.7 2009 -33.7 -35.0 -38.5 -40.7 -39.7 -41.5 -39.1 -40.6 -41.6 -40.5 -36.4 -35.3 2010 -31.1 -34.4 -34.6 -40.1 -41.7 -41.9 -43.3 -44.1 -40.3 -39.4 -37.3 -34.1 2011 -33.9 -34.2 -36.5 -38.8 -39.0 -41.1 -39.9 -39.7 -39.5 -40.6 -35.6 -34.3 2012 -33.8 -34.5 -37.6 -41.0 -39.5 -41.5 -43.7 -40.6 -40.7 -39.8 -36.4 -33.0 2013 -30.3 -34.4 -38.0 -40.4 -39.0 -42.2 -44.6 -40.6 -38.5 -40.5 -39.2 -33.8 2014 -31.3 - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - -38.6 -40.3 -40.0 -43.4 -42.9 -42.1 -42.4 -37.4 -38.0 -35.6 2018 -33.6 -35.5 -37.8 -36.6 -42.1 -42.3 -40.1 -40.4 -40.7 -39.7 -35.9 -34.4 2019 -33.0 -34.3 -35.4 -39.2 -40.5 -43.2 -38.1 -39.7 -42.2 -40.7 -35.2 -33.3 2020 -33.5 -32.9 -38.6 -39.7 -40.9 -43.1 -38.7 -42.1 -41.1 -40.6 -39.1 -34.4 2021 -34.3 -34.1 -38.7 -39.3 -43.4 -43.0 -40.7 -38.9 -41.8 -38.5 -37.9 -35.5 2022 -35.0 -33.0 -36.4 -39.6 -39.9 -38.4 -40.2 -42.0 -41.3 -38.9 -36.8 -34.7 2023 -35.0 -36.4 -36.7 -37.3 -40.6 -40.7 -41.1 -43.8 -41.4 -41.2 -37.3 -34.6 2024 -34.0 -36.1 -38.3 -41.7 - - - - - - - -