McMurdo 12Z temperature 1956 - - - -23.4 -18.7 -23.6 -23.1 -30.8 -19.2 -20.3 -9.3 -2.6 1957 -3.8 -9.0 -17.6 -23.5 -23.4 -23.7 -26.6 -25.1 -21.1 -20.8 -8.6 -2.9 1958 -2.6 -6.6 -19.3 -21.0 -24.9 -26.6 -31.3 -30.2 -27.1 -20.3 -9.5 -6.3 1959 -2.9 -10.6 -18.9 -21.0 -25.8 -23.7 -23.3 -30.2 -25.3 -25.7 -12.9 -2.9 1960 -6.3 -12.1 -21.4 -23.2 -22.0 -24.1 -28.3 -27.4 -22.6 -17.3 -10.9 -4.7 1961 -3.4 -9.0 -18.2 -17.1 -20.9 -23.9 -27.5 -28.8 -22.5 -21.5 -8.8 -4.2 1962 -4.1 -9.8 -23.2 -20.4 -23.0 -22.9 -28.5 -28.7 -29.8 -22.8 -10.5 -5.6 1963 -4.1 -11.0 -20.3 -24.0 -26.7 -22.2 -26.6 -25.5 -24.0 -19.5 -8.4 -4.1 1964 -5.3 -11.7 -18.9 -20.1 -27.4 -19.3 -21.1 -31.4 -24.4 -19.2 -8.1 -4.0 1965 -2.6 -8.7 -20.6 -20.5 -28.1 -27.9 -22.6 -25.1 -24.6 -19.4 -10.2 -2.0 1966 -3.7 -7.4 -11.4 -21.8 -28.1 -20.2 -23.2 -29.0 -25.3 -18.3 -9.1 -3.8 1967 -1.8 -5.6 -17.7 -24.1 -22.8 -20.3 -24.7 -23.1 -24.6 -21.6 -10.3 -3.4 1968 -3.4 -7.4 -15.6 -19.6 -23.5 -23.9 -26.0 -30.3 -33.3 -19.4 -9.5 -4.5 1969 -2.8 -9.4 -15.9 -21.6 -23.7 -24.6 -30.8 -25.2 -25.9 -19.0 -9.5 -2.6 1970 -2.2 -8.2 -12.6 -20.0 -23.7 -21.6 -25.6 -28.7 -23.9 -15.0 -10.3 -2.9 1971 -1.1 -9.4 -19.1 -16.5 -20.8 -23.0 -27.6 -26.0 -19.9 -19.4 -7.9 -2.9 1972 -2.5 -7.7 -15.5 -23.2 -18.7 -18.8 -23.8 -23.0 -22.0 -16.4 -10.4 -2.2 1973 -3.1 -12.3 -21.5 -21.0 -20.9 -22.4 -23.6 -22.0 -23.0 -15.7 -9.1 -4.3 1974 -2.0 -9.8 -20.4 -20.5 -20.6 -21.2 -28.0 -23.0 -29.5 -17.2 -8.3 -2.3 1975 -3.3 -8.2 -16.8 -21.5 -20.3 -22.8 -24.7 -29.5 -25.3 -21.8 -11.4 -5.6 1976 -2.8 -8.8 -16.4 -23.6 -27.1 -26.5 -21.3 -26.1 -25.5 -26.6 -12.1 -3.8 1977 -1.6 -11.9 -18.9 -21.9 -21.3 -24.6 -22.8 -22.9 -30.4 -19.7 -12.4 -5.8 1978 -6.6 - -15.8 -20.8 -22.3 -23.2 -27.4 -36.2 -24.4 -19.4 -11.0 -5.1 1979 -4.2 -9.4 -18.4 -18.7 -26.0 -21.4 -30.2 -29.5 -23.8 -22.0 -10.0 -4.5 1980 -4.2 -8.6 -17.5 -19.0 -19.0 -25.1 -23.8 -22.5 -25.2 -20.1 -9.1 -3.5 1981 -4.4 -9.8 -13.5 -24.5 -23.3 -19.6 -21.6 -25.5 -28.7 -20.9 -12.5 -4.1 1982 -4.1 -8.8 -21.0 -24.5 -24.3 -26.2 -28.8 -23.3 -27.0 -20.0 -10.2 -3.1 1983 -3.8 -12.9 -17.3 -16.4 -17.7 -24.9 -27.6 -25.4 -24.6 -18.8 -10.4 -4.0 1984 -3.5 -11.3 -15.1 -16.7 -19.2 -23.1 -23.4 -25.7 -24.7 -16.6 -8.6 -2.2 1985 -2.2 -12.1 -15.6 -21.8 -23.4 -23.6 -32.2 -27.1 -24.4 -18.6 -10.9 -5.2 1986 -4.1 -7.0 -16.8 -20.1 -18.9 -23.5 -24.5 -29.5 -31.6 -19.5 -11.0 -4.2 1987 -0.2 -10.1 - - - - - - -20.7 -17.6 -7.5 -0.7 1988 -2.5 -10.2 - -18.8 -20.2 -20.6 -23.5 - - - -11.4 -6.5 1989 -4.9 - - - - - - - - - -10.7 - 1990 -3.8 - - - - - - - - - - - 1991 - -7.3 - - - - - - - - - -1.1 1992 -2.7 - - - - - - - - - - - 1993 - - -17.8 -20.6 -26.1 - - - - - - - 1994 - - -20.2 -17.6 - -21.6 -24.3 - - - - - 1995 - - -19.5 -25.8 -25.8 -23.3 -24.6 - - - - - 1996 - - - - - - - - - -19.3 - - 1997 -3.4 -11.2 - - - - - - -22.3 -14.1 -5.7 - 1998 -4.2 -7.7 - - - - - -23.2 -27.3 -17.2 -9.8 -3.3 1999 -2.4 -9.1 -18.1 -23.4 -24.9 -20.8 -19.9 -27.0 -19.4 -15.6 -7.4 - 2000 -4.1 -11.0 -16.1 -18.3 -22.5 -25.1 -23.0 -25.7 -25.7 -21.8 -8.0 -3.3 2001 -5.2 -7.5 -19.4 -21.5 -22.7 -20.6 -22.0 -32.2 -23.6 -18.3 -9.3 -1.9 2002 -2.6 -8.1 -15.9 -20.9 -19.1 -27.2 -28.7 -30.0 -22.3 -17.7 -11.2 -5.7 2003 -3.3 -9.5 -17.9 -23.3 -20.2 -23.1 -21.9 -28.4 -23.1 -16.1 -10.5 -3.1 2004 -5.0 -9.3 -21.0 -20.9 -25.7 -24.3 -33.0 -28.9 -28.4 -18.8 -7.6 -2.0 2005 -3.2 -9.6 -18.2 -23.4 -20.5 -25.1 -25.7 -27.2 -23.7 -17.4 -9.4 -2.6 2006 -3.6 -8.7 -18.2 -25.3 -27.8 -21.8 -29.8 -19.8 -22.3 -19.3 -9.0 -4.8 2007 0.0 -10.5 -16.8 -20.8 -19.3 -20.2 -21.7 -21.9 -20.5 -20.1 -9.6 -2.7 2008 -2.4 -10.7 -15.9 -18.6 -22.2 -17.8 -25.8 -30.9 -18.4 -17.4 -10.9 -2.6 2009 -2.9 -12.1 -18.8 -17.4 -22.9 -22.5 -23.6 -25.4 -24.5 -19.4 -6.2 -2.9 2010 -3.5 -8.7 -16.2 -18.7 -22.4 -23.0 -25.9 -26.1 -26.1 -16.3 -7.7 -2.2 2011 -4.7 -9.4 -16.3 -19.8 -20.5 -19.9 -19.4 -19.7 -23.3 -17.6 -6.4 -3.0 2012 -3.6 -8.1 -15.4 -20.0 -16.7 -24.1 -25.4 -25.7 -21.4 -16.3 -9.0 -1.4 2013 -2.7 -9.7 -16.1 -24.6 -20.8 -22.0 -26.4 -23.1 -18.4 -16.5 -9.4 -2.2 2014 -1.1 -9.3 -17.5 -21.0 -17.6 -24.0 -29.1 -19.1 -16.8 -15.1 -10.5 -5.6 2015 -3.5 -6.8 -17.8 -24.4 -24.9 -23.3 -26.5 -25.9 -26.8 -16.9 -10.4 -3.7 2016 -2.7 -9.5 -17.9 -23.6 - -26.1 -28.3 -22.4 -24.8 -19.9 -9.8 -4.0 2017 -3.2 -9.2 -17.0 - - -23.2 -24.6 -22.9 -27.4 -16.6 -11.5 -5.2 2018 -3.4 -10.2 -15.1 -19.8 -22.4 -19.6 -24.5 -25.1 -24.6 -14.8 -8.4 -3.0 2019 -4.0 -7.6 -16.3 -19.3 -17.3 -23.4 -21.4 -22.5 -22.3 -17.9 -7.9 -3.1 2020 - -6.9 - - -21.7 -23.1 -22.8 -23.0 - -16.5 -9.8 -2.7 2021 -3.5 -9.4 - -25.2 -23.3 -22.5 -20.5 -29.5 -22.6 -16.2 -8.8 -2.7 2022 -3.7 -7.9 -14.4 -20.0 -17.8 -21.1 -20.3 -23.3 -22.7 - -11.9 -4.0 2023 -4.5 -8.6 -17.9 -21.1 -23.6 -21.6 -30.6 -32.3 -18.2 -19.7 -11.4 - 2024 -4.2 -12.7 -17.4 -20.4 - - - - - - - -