McMurdo 06Z temperature 1956 - - - -23.0 -18.8 -24.2 -23.8 -31.7 -20.1 -19.0 -7.3 -1.0 1957 -2.7 -7.3 -18.3 -23.8 -23.7 -23.5 -26.4 -25.2 -20.6 -19.5 -7.4 -1.9 1958 -1.0 -4.9 -18.7 -21.2 -25.5 -26.6 -30.8 -29.7 -26.3 -19.6 -7.7 -4.9 1959 -2.4 -9.7 -17.7 -20.7 -25.2 -23.9 -23.9 -30.5 -25.0 -24.4 -10.6 -2.1 1960 -5.2 -10.2 -20.9 -23.4 -21.8 -24.9 -28.0 -27.0 -22.8 -16.9 -9.9 -4.1 1961 -2.2 -8.3 -18.6 -17.1 -21.0 -23.3 -28.5 -28.5 -22.0 -20.8 -7.5 -3.6 1962 -2.7 -8.4 -23.0 -20.7 -22.7 -22.5 -27.7 -28.3 -28.8 -21.8 -8.9 -4.4 1963 -3.0 -8.9 -20.5 -23.8 -26.1 -22.4 -26.7 -25.4 -24.2 -18.7 -7.2 -3.1 1964 -3.8 -11.5 -18.1 -20.3 -27.5 -19.3 -22.7 -32.0 -24.5 -18.6 -6.8 -2.6 1965 -1.5 -7.6 -20.2 -20.9 -28.8 -28.0 -22.0 -24.1 -24.5 -17.9 -8.8 -0.9 1966 -2.6 -6.9 -10.6 -22.1 -27.8 -19.6 -23.3 -28.2 -25.4 -18.4 -8.3 -2.5 1967 -0.6 -4.9 -17.5 -24.1 -23.0 -20.5 -24.3 -22.8 -24.3 -20.0 -9.0 -2.0 1968 -2.3 -6.9 -14.5 -19.9 -23.3 -24.5 -26.1 -30.1 -33.3 -18.5 -8.6 -3.5 1969 -1.8 -9.0 -15.4 -21.3 -23.9 -24.1 -30.7 -25.5 -24.4 -19.1 -9.0 -2.0 1970 -0.8 -7.2 -11.9 -19.8 -24.6 -20.6 -25.2 -29.2 -23.9 -13.9 -9.5 -1.3 1971 -0.2 -8.2 -17.9 -16.5 -21.3 -22.9 -27.9 -25.8 -19.1 -18.3 -6.4 -2.2 1972 -2.2 -7.0 -15.1 -22.6 -18.7 -19.1 -23.5 -22.8 -21.3 -16.0 -9.3 -1.0 1973 -1.9 -11.5 -20.4 -21.5 -21.3 -22.1 -22.9 -22.2 -23.0 -15.1 -7.5 -4.0 1974 -0.8 -8.9 -19.7 -20.1 -20.1 -20.9 -28.1 -22.9 -30.0 -15.6 -6.7 -1.2 1975 -2.5 -7.7 -15.6 -21.7 -20.5 -23.1 -24.8 -31.1 -25.0 -21.3 -10.4 -4.4 1976 -1.8 -7.4 -16.2 -24.5 -26.4 -27.9 -20.4 -27.0 -24.5 -24.8 -11.4 -2.1 1977 -0.7 -11.3 -18.7 -21.6 -22.3 -23.5 -22.9 -23.2 -29.4 -18.4 -11.1 -4.5 1978 -5.2 - -15.5 -20.9 -22.1 -23.1 -26.8 -35.9 -24.5 -19.6 -9.8 -4.0 1979 -2.7 -8.4 -17.9 -18.2 -26.0 -21.3 -30.1 -30.4 -24.1 -20.0 -8.5 -3.7 1980 -2.7 -7.6 -18.1 -18.9 -19.0 -24.9 -22.8 -23.0 -25.0 -18.6 -8.1 -2.3 1981 -3.0 -9.0 -12.4 -23.9 -22.5 -19.9 -21.2 -24.4 -28.0 -19.4 -10.9 -2.9 1982 -2.8 -7.8 -20.5 -24.1 -24.4 -25.9 -28.3 -23.7 -26.6 -18.5 -9.3 -1.9 1983 -2.5 -11.9 -16.8 -16.8 -16.7 -24.6 -27.9 -25.4 -24.0 -17.6 -9.0 -2.9 1984 -1.9 -10.6 -14.9 -16.5 -18.7 -23.1 -23.0 -24.9 -22.9 -16.0 -7.2 -0.7 1985 -1.1 -11.6 -15.2 -21.3 -23.0 -24.4 -32.2 -26.5 -23.6 -17.6 -9.9 -3.7 1986 -2.3 -5.7 -16.0 -20.9 -18.8 -22.5 -25.2 - - -17.8 -10.4 -3.0 1987 0.4 -9.8 - - - - - -27.5 -20.7 -14.2 -4.1 1.3 1988 -0.9 -9.6 - -19.1 -19.9 -21.0 -23.5 - - - - -5.3 1989 - - - - - - - - - - -9.7 - 1990 - - - - - - - - - - - - 1991 - - - - - - - - - - - - 1992 - - - - - - - - - - - - 1993 - - - - - - - - - - - - 1994 - - - - - - - - - - - - 1995 - - - - - - - - - - - -0.3 1996 -1.6 - - - - - - - - - - - 1997 -2.3 -10.4 - - - - - - - -13.5 -5.1 -3.0 1998 - - - - - - - -24.4 - -15.2 -8.4 -1.9 1999 -1.7 -8.1 -17.4 -23.3 -24.5 -21.6 -20.2 -27.1 -19.6 -13.7 -6.5 - 2000 -2.7 -9.6 -14.8 -18.4 -22.4 -24.4 -22.7 -25.2 -24.6 -18.8 -6.8 -2.7 2001 -4.4 -6.0 -18.2 -21.4 -22.7 -21.4 -22.6 -31.7 -23.1 -16.0 -7.3 -0.1 2002 -0.7 -7.2 -15.2 -20.3 -19.2 -27.3 -28.7 -29.7 -21.3 -15.7 -9.2 -4.1 2003 -1.3 -7.6 -17.2 -23.5 -20.3 -23.2 -22.1 -28.0 -22.9 -15.1 -9.2 -1.7 2004 -2.8 -8.0 -20.0 -20.6 -25.8 -24.8 -32.7 -30.3 -25.0 -16.6 -5.9 -0.6 2005 -1.7 -7.9 -16.7 -24.3 -20.4 -25.4 -25.6 -28.1 -23.6 -15.5 -8.1 -0.8 2006 -1.7 -6.7 -17.4 -24.8 -28.1 -21.8 -29.1 -19.9 -22.3 -18.0 -7.5 -3.4 2007 1.3 -9.4 -16.5 -21.5 -18.2 -19.6 -21.8 -22.2 -19.2 -18.2 -7.6 -1.5 2008 -1.5 -10.0 -16.0 -18.0 -22.7 -18.0 -26.3 -30.8 -18.5 -15.7 -9.8 -1.8 2009 -1.8 -10.8 -17.5 -17.5 -22.9 -22.3 -22.9 -25.6 -24.6 -17.7 -5.1 -1.8 2010 -2.2 -8.2 -16.0 -19.4 -22.9 -23.0 -25.7 -25.4 -25.1 -15.4 -6.5 -1.2 2011 -2.8 -8.1 -15.9 -19.0 -21.1 -19.9 -19.3 -19.5 -22.9 -17.0 -5.1 -1.8 2012 -2.3 -7.0 -16.0 -20.3 -16.7 -23.4 -24.6 -25.1 -21.2 -15.4 -8.1 -0.8 2013 -1.5 -8.6 -15.5 -24.2 -20.1 -21.8 -26.2 -23.9 -18.4 -15.4 -7.9 -1.1 2014 -0.6 -8.8 -17.3 -20.6 -18.0 -23.0 -28.9 -19.7 -16.6 -14.8 -9.1 -4.9 2015 -2.1 -6.2 -16.7 -24.4 -25.1 -23.3 -26.9 -26.6 -26.4 -16.2 -9.7 -2.7 2016 -2.6 -7.9 -17.2 -23.9 - -25.7 -28.6 -23.0 -24.5 -19.0 -8.1 -2.6 2017 -1.7 -7.9 -16.6 - - -24.2 -24.6 -23.4 -26.4 -15.4 -9.5 -4.1 2018 -2.7 -9.0 -14.9 -19.7 -22.3 -19.6 -24.5 -24.9 -24.6 -13.9 -6.9 -2.0 2019 -3.4 -7.2 -16.0 -19.5 -17.8 -23.7 -21.2 -23.1 -21.6 -16.2 -5.9 -1.7 2020 - -5.2 - -20.7 -21.9 -22.6 -23.5 -23.2 - -15.6 -7.9 -2.1 2021 -2.3 -8.9 -17.9 -25.1 -23.7 -22.5 -20.6 -28.6 -21.5 -14.9 -7.6 -1.3 2022 -2.3 -7.1 -13.7 -20.6 -17.4 -22.3 -19.6 -22.9 -22.1 - -11.1 -2.9 2023 -3.0 -6.9 -17.8 -20.8 -23.9 -21.1 -30.4 -31.8 -17.2 -18.5 -9.7 - 2024 - -11.5 -16.3 -20.2 - - - - - - - -