Halley 18Z temperature 1957 -3.6 -7.3 -13.8 -19.3 -20.9 -23.7 -27.7 -32.6 -24.5 -19.3 -9.8 -3.9 1958 -4.1 -6.5 -14.5 -24.4 -30.0 -25.2 -28.4 -27.9 -22.8 -16.4 -9.1 -5.9 1959 -2.7 -7.1 -17.4 -19.7 -17.4 -31.2 -28.2 -28.4 -30.7 -17.9 -10.4 -3.7 1960 -4.3 -10.3 -16.6 -18.2 -27.6 -30.0 -25.3 -24.9 -28.3 -16.8 -10.4 -3.6 1961 -3.8 -9.1 -15.4 -22.3 -19.5 -32.0 -32.6 -31.9 -28.5 -12.4 -8.7 -3.9 1962 -4.2 -9.8 -14.7 -20.0 -28.2 -26.9 -28.6 -32.3 -25.7 -21.8 -13.0 -4.5 1963 -3.2 -9.4 -13.6 -22.9 -25.8 -26.1 -26.0 -19.7 -24.4 -20.3 -10.5 -3.9 1964 -3.3 -7.7 -15.3 -25.6 -32.4 -22.6 -30.4 -33.8 -32.8 -20.7 -10.4 -3.9 1965 -3.7 -8.2 -15.8 -22.5 -27.2 -26.3 -27.7 -30.5 -25.6 -18.2 -10.4 -4.0 1966 -3.9 -7.4 -9.4 -16.9 -23.7 -24.9 -28.0 -28.6 -25.3 -18.2 -11.1 -3.2 1967 -1.2 -6.8 -18.1 -21.4 -23.4 -30.1 -29.8 -26.9 -27.6 -17.9 -9.9 -2.9 1968 -4.0 -8.0 -12.3 -23.2 -21.5 -21.3 -32.6 -28.9 -28.1 -16.4 -9.0 -4.5 1969 -2.4 -6.5 -15.6 -14.8 -20.9 -20.5 -30.7 -30.4 -21.7 -12.4 -8.0 -2.6 1970 -3.4 -8.7 -18.0 -21.0 -27.2 -30.2 -30.9 -35.3 -16.5 -16.8 -8.6 -1.9 1971 -1.9 -7.9 -16.9 -17.8 -24.9 -31.7 -33.0 -25.3 -26.4 -17.1 -10.5 -2.6 1972 -2.7 -6.7 -15.3 -20.5 -25.3 -28.2 -34.6 -30.3 -27.3 -20.7 -9.3 -2.6 1973 -2.0 -8.5 -15.1 -18.3 -24.9 -32.0 -30.3 -36.9 -25.1 -15.2 -7.6 -4.8 1974 -3.5 -9.5 -15.8 -21.8 -22.1 -28.9 -32.0 -22.2 -21.6 -18.5 -9.5 -2.7 1975 -2.8 -7.4 -11.2 -21.6 -17.7 -24.0 -23.9 -29.7 -25.2 -12.8 -7.9 -2.0 1976 -2.6 -6.8 -16.9 -19.5 -24.8 -26.4 -26.7 -22.9 -22.8 -15.9 -8.5 -2.6 1977 -1.6 -7.1 -15.5 -15.2 -16.4 -21.2 -30.4 -27.3 -27.2 -17.7 -9.6 -5.1 1978 -4.2 -7.3 -14.1 -15.5 -22.2 -24.4 -28.6 -24.9 -25.6 -15.3 -9.9 -3.2 1979 -2.3 -8.8 -17.3 -16.8 -26.0 -23.6 -34.1 -28.8 -25.9 -17.4 -9.8 -3.3 1980 -2.9 -7.9 -13.9 -19.8 -28.4 -24.1 -31.4 -27.4 -25.3 -20.2 -7.5 -4.1 1981 -2.5 -6.2 -15.0 -16.7 -26.6 -25.5 -25.7 -24.6 -25.2 -16.8 -8.9 -3.8 1982 -2.8 -7.3 -19.7 -18.3 -25.6 -26.5 -24.6 -28.0 -20.5 -15.4 -7.9 -2.9 1983 -3.4 -7.0 -14.3 -23.4 -21.2 -28.0 -29.3 -25.5 -26.1 -18.6 -11.4 -5.2 1984 -1.7 -8.1 -13.0 -21.8 -20.7 -31.0 -23.9 -24.4 -26.0 -20.0 -10.5 -3.0 1985 -3.1 -10.0 -12.6 -22.7 -27.7 -28.2 -22.6 -23.9 -24.6 -19.0 -13.7 -3.8 1986 -3.2 -5.5 -13.7 -22.1 -29.3 -30.9 -27.4 -24.8 -26.9 -22.1 -9.1 -4.3 1987 -1.4 -7.3 -13.6 -18.6 -28.7 -25.6 -23.6 -28.8 -23.3 -20.1 -7.8 -2.6 1988 -0.9 -7.7 -10.3 -18.6 -23.9 -25.1 -30.4 -28.9 -28.9 -18.2 -9.0 -2.9 1989 -1.3 -6.8 -13.6 -20.5 -24.3 -22.3 -27.8 -32.2 -23.6 -17.4 -8.0 -3.2 1990 -2.0 -8.7 -14.4 -22.7 -28.2 -21.8 -28.5 -25.5 -26.6 -14.5 -6.9 -2.3 1991 -3.0 -6.5 -19.2 -24.6 -26.1 -22.9 -27.2 -26.9 -22.5 -18.2 -7.5 -2.1 1992 -0.4 -7.5 -17.8 -24.3 -26.4 -25.9 -27.7 -36.4 -26.2 -14.7 -9.1 -2.3 1993 -3.2 -9.7 -13.9 -21.8 -21.6 -29.8 -32.5 -28.4 -30.6 -17.2 -8.0 -3.6 1994 -3.5 -7.8 -19.9 -25.0 -28.7 -25.7 -35.6 -32.2 -24.3 -20.2 -10.1 -5.3 1995 -3.7 -7.4 -10.7 -25.3 -30.0 -19.5 -28.6 -28.3 -28.6 -16.6 -9.8 -2.3 1996 -1.6 -4.7 -12.9 -26.5 -22.0 -30.8 -24.1 -23.0 -27.3 -15.3 -6.7 -2.2 1997 -2.5 -12.9 -16.4 -28.2 -28.9 -31.1 -31.4 -32.3 -27.3 -20.6 -7.5 -3.4 1998 -2.8 -8.5 -18.4 -23.4 -27.4 -28.4 -27.3 -27.3 -27.1 -19.3 -8.7 -2.7 1999 -3.1 -7.7 -17.9 -20.5 -24.9 -29.6 -28.0 -25.7 -26.3 -16.1 -10.2 -5.4 2000 -3.7 -9.4 -16.7 -22.8 -29.6 -27.7 -31.3 -35.2 -22.2 -22.2 -9.0 -3.9 2001 -3.0 -9.1 -18.7 -25.8 -26.1 -25.0 -29.3 -26.4 -23.7 -16.9 -8.0 -2.8 2002 -3.0 -8.9 -17.2 -23.4 -24.7 -24.9 -31.2 -21.7 -30.6 -15.8 -11.8 -4.1 2003 -2.3 -5.3 -16.4 -23.2 -22.3 -31.6 -34.2 -25.5 -25.4 -18.2 -9.5 -2.2 2004 -2.7 -7.5 -14.9 -25.9 -24.9 -29.3 -30.3 -32.1 -21.1 -17.0 -11.6 -3.8 2005 -2.3 -8.5 -12.8 -19.7 -31.1 -30.0 -28.2 -23.8 -27.6 -18.2 -11.1 -2.1 2006 -2.9 -10.5 -12.1 -22.9 -25.3 -28.4 -24.2 -29.3 -26.0 -20.1 -7.2 -3.4 2007 -2.1 -8.8 -15.3 -29.3 -27.4 -30.5 -27.5 -30.2 -27.8 -18.5 -9.6 -4.1 2008 -4.5 -9.9 -16.9 -19.2 -20.8 -30.1 -23.8 -25.9 -25.7 -20.3 -9.1 -5.6 2009 -3.7 - - - - - - - - - - -