Mcmurdo 00Z 700hPa temperature 1956 - - - - - - - -30.9 -30.3 -30.1 - - 1957 - - - -29.0 -27.6 -29.1 -30.7 -30.0 -28.6 -27.0 -24.0 -20.5 1958 - - -26.1 -24.1 -29.3 -29.9 -33.4 -28.7 -33.8 -29.1 -25.3 -23.6 1959 -19.2 -21.6 - - -31.1 -31.4 -29.7 -31.3 -32.9 -31.7 -26.5 -22.3 1960 -19.8 -23.6 - - - - - - - - - - 1961 -21.1 -21.8 -26.2 -25.6 -28.7 -29.9 -31.2 -33.5 -28.6 -26.1 -23.5 - 1962 -22.3 -21.5 -27.7 -28.0 -32.1 -30.2 -34.9 -30.2 -28.3 -29.3 -24.0 -23.6 1963 -20.0 -24.3 -26.2 -28.6 -31.8 -31.7 -30.2 -29.2 -31.3 -31.2 -23.2 -22.2 1964 -22.6 -23.9 -24.9 -28.1 -31.2 -29.6 -29.5 -28.8 -29.6 -28.8 -23.7 -21.1 1965 -21.3 -21.9 -26.7 -26.4 -31.3 -29.9 -28.3 -33.9 -30.1 -27.4 -23.3 -20.5 1966 -22.5 -22.6 -24.0 -25.9 -29.8 -28.8 -29.4 -34.6 -33.8 -30.2 -24.9 -21.9 1967 -19.0 -20.6 -27.5 -29.9 -29.0 -28.5 -30.5 -32.4 -30.4 -29.9 -24.1 -19.4 1968 -20.8 -22.1 -27.2 -28.2 -28.5 -29.7 -34.1 -32.4 -31.5 -28.4 -25.8 -22.9 1969 -20.6 -24.9 -25.4 -27.5 -28.2 -28.0 -34.6 -31.9 -28.7 -29.7 -26.0 -20.9 1970 -18.1 -23.7 -24.0 -25.4 -32.3 -27.7 -28.3 -33.5 -30.6 -25.8 -25.8 -19.8 1971 -19.2 -22.5 - -30.1 -27.2 -28.1 -30.5 -29.2 -29.0 -25.9 -23.2 -22.2 1972 -18.5 -20.8 -25.6 -26.5 -26.8 -25.5 -30.0 -29.6 -27.2 -29.2 -25.3 -20.3 1973 -19.9 -24.2 -27.0 -25.4 -25.8 -28.5 -27.3 -29.6 -28.4 -27.0 -23.1 -21.6 1974 -18.7 -22.7 -27.1 -30.1 -28.4 -24.4 -31.9 -27.5 -31.2 -27.6 -23.5 -19.4 1975 -20.7 -23.9 -26.7 -29.0 -27.0 -27.9 -29.3 -31.8 -30.3 -27.9 -23.0 -20.8 1976 -17.5 -21.7 -26.1 -29.6 -28.9 -30.4 -27.9 -31.0 -31.7 -33.5 -25.1 -19.1 1977 -17.9 -24.8 -27.2 -27.2 -29.0 -30.4 -31.1 -28.7 -34.7 -27.6 -26.3 -20.5 1978 -21.3 -21.1 -24.7 -27.7 -28.9 -28.9 -27.7 -34.5 -30.7 -29.2 -24.7 -21.8 1979 -21.8 -23.9 -27.9 -26.8 -28.6 -29.3 -33.7 -32.3 -30.5 -31.7 -24.1 -20.3 1980 -17.9 -23.1 -25.7 -27.1 -28.2 -31.1 -28.5 -29.0 -28.3 -28.7 -24.2 -21.0 1981 -21.2 -22.4 -25.1 -28.0 -29.4 -28.8 -29.3 -28.9 -27.9 - - - 1982 - - - -29.9 -27.1 -29.3 -30.4 -30.6 - -28.0 -25.3 -19.2 1983 - - - -27.7 -24.7 -29.4 -29.4 - - - -26.1 -19.1 1984 -18.4 -22.0 -25.2 - -27.0 -30.1 -34.3 -31.0 -30.2 -27.5 -22.7 -19.5 1985 -17.8 -24.7 -25.3 -28.9 -29.0 -32.2 -32.2 -27.9 -31.0 -29.2 -24.9 -21.9 1986 - -21.3 - - - - - - - -27.0 -26.2 -19.2 1987 -18.8 -23.6 -28.1 -28.1 -28.6 - -30.0 -30.6 -26.9 -25.9 -24.4 -21.2 1988 -21.2 -23.4 -28.5 -26.0 -29.0 -28.4 -28.5 -28.1 -26.9 -25.0 -23.4 -20.0 1989 -20.3 -23.2 -24.4 -26.8 -30.8 -33.0 -30.1 -33.3 -28.4 -27.6 -25.4 -19.6 1990 -20.5 -23.3 -28.4 -29.7 -27.7 -29.4 - -31.5 -30.9 -25.7 - -17.7 1991 -17.8 -21.6 -26.2 -24.8 -28.2 -25.9 -26.8 -25.1 -27.7 -24.7 -23.8 -18.6 1992 -20.9 -21.9 -22.4 -28.4 -26.7 - -28.4 -26.2 -32.2 -27.3 -21.3 -21.2 1993 -18.3 -20.5 -23.5 -28.5 -30.9 -30.8 -30.5 -30.2 -28.7 -28.9 -24.2 -22.0 1994 -20.0 -24.8 - - - -30.4 -24.8 -34.6 - -26.5 -23.8 -21.3 1995 -20.2 -22.3 - -29.2 -29.6 -29.1 -29.9 -28.4 - -27.9 -23.1 -20.5 1996 -21.5 -22.8 -24.7 -26.9 -29.9 -31.6 -31.2 -27.7 -30.3 -29.6 -22.4 -19.5 1997 -20.9 -24.3 -25.6 -30.2 - - - - -29.4 -24.2 -19.0 -21.4 1998 -21.4 -19.6 -24.7 -28.8 -26.4 -25.4 -28.8 -26.0 -28.6 -25.9 -24.9 -21.1 1999 -20.8 -23.7 -26.9 -28.2 -30.2 -26.9 -28.3 -30.0 -27.4 -26.9 -23.8 -21.7 2000 -23.0 -24.0 -26.6 -28.0 -27.4 -29.5 -29.7 -30.9 -27.7 -28.1 -22.8 -22.0 2001 -21.1 -23.2 -26.2 -27.6 -28.8 -28.9 -29.0 -31.7 -28.3 -27.6 -24.2 -19.3 2002 -18.8 -24.0 -24.0 -29.2 -26.5 -27.0 -32.3 -33.3 -25.6 -27.2 -24.0 -20.9 2003 -18.4 -22.7 -26.4 -28.7 -28.7 -28.3 -29.6 -30.9 -28.5 -28.0 -23.3 -19.4 2004 -19.2 -21.2 -27.0 -28.6 -31.5 -26.0 -34.9 -28.9 -30.1 -28.2 -23.9 -19.9 2005 -19.4 -22.6 -27.1 -29.3 -28.2 -28.4 -28.6 -29.4 -27.9 -25.5 -24.3 -18.0 2006 -19.3 -22.6 -25.9 -27.9 -29.2 -29.7 -31.1 - -30.1 -26.1 -21.8 -22.2 2007 -17.4 -23.5 -24.0 -27.2 -25.5 -27.9 -29.5 -29.6 -29.5 -27.2 -24.3 -21.1 2008 -19.1 -25.3 -27.0 -24.5 -28.8 -27.2 -31.6 -30.6 -29.0 -27.5 -24.6 -20.0 2009 -20.0 -23.5 -26.5 -28.4 -27.7 -28.5 -25.9 -28.1 -28.7 -28.5 -22.5 -20.9 2010 -18.4 -23.2 -23.1 -26.1 -29.3 -29.9 -32.7 -31.0 -28.5 -26.6 -24.0 -19.9 2011 -20.9 -21.9 -25.1 -27.9 -27.5 -29.0 -26.8 -26.2 -26.2 -27.5 -22.0 -20.4 2012 -20.5 -21.9 -26.8 -28.8 -27.1 -28.2 -30.4 -28.2 -29.4 -27.5 -23.5 -19.0 2013 -17.8 -22.9 -25.7 -29.0 -26.2 -29.2 -31.7 -27.3 -25.3 -27.4 -25.3 -20.6 2014 -17.7 - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - -24.8 -27.8 -26.6 -29.9 -31.1 -30.9 -29.4 -25.8 -23.6 -22.1 2018 -20.3 -22.5 -24.6 -25.2 -29.9 -29.7 -29.1 -28.4 -29.1 -26.0 -23.0 -20.5 2019 -19.3 -21.5 -24.9 -27.5 -27.7 -32.5 -24.5 -26.9 -30.9 -27.6 -21.5 -19.5 2020 -19.7 -20.1 -26.5 -28.0 -28.7 -31.1 -26.2 -30.2 -28.5 -28.2 -24.4 -20.2 2021 -20.4 -22.4 -24.9 -29.0 -30.2 -30.5 -27.5 -27.0 -29.7 -27.0 -24.6 -20.8 2022 -21.1 -20.8 -24.8 -26.6 -27.8 -26.1 -29.0 -30.3 -29.4 -26.2 -24.9 -20.5 2023 -21.2 -23.5 -25.3 -25.8 -28.9 -29.2 -31.4 -33.9 -28.9 -29.6 -24.1 -21.2 2024 -21.5 -25.4 -27.0 -28.8 - - - - - - - -