Marble_Point 18Z temperature 1980 - - -16.3 -19.0 -20.0 -25.4 -23.1 -22.7 -26.3 -19.4 -9.0 -3.0 1981 - -9.0 -13.3 -23.7 -21.4 -19.0 -21.6 -24.9 -28.4 -21.1 -12.6 -4.8 1982 -4.3 -9.2 -20.4 -23.8 -24.3 -26.6 -29.0 -23.9 -27.2 -20.8 -9.5 -2.4 1983 -4.7 -10.9 -16.3 -15.9 -16.1 -24.8 -28.2 -24.5 -25.3 -18.7 -10.4 -4.2 1984 -3.7 -10.8 -15.0 -17.6 -19.4 -21.9 -23.5 -25.8 -24.9 -17.7 - - 1985 - -11.3 -15.4 -20.7 -22.7 -22.1 -31.0 -25.2 -24.6 -19.8 -12.0 -5.1 1986 -4.5 -6.9 -16.5 -19.2 -18.6 -23.1 -24.4 -29.8 -32.5 -19.0 -11.3 -3.8 1987 -1.6 -9.9 -19.3 -23.6 -21.2 -20.1 -24.0 -27.9 -22.5 -18.0 -9.8 -3.1 1988 -3.8 -10.8 -18.9 -19.6 -21.0 -20.6 -24.8 -19.8 -20.5 -13.7 - - 1989 - -9.7 -15.1 -18.0 -23.3 -28.6 -24.1 -26.3 -23.0 -16.7 -8.7 -2.3 1990 -2.8 -9.5 -16.1 -20.5 -22.6 -23.5 -25.5 -27.4 -28.1 -19.4 -8.7 -2.2 1991 -3.0 -5.6 -18.2 -19.5 -23.6 -20.2 -25.7 -26.4 -20.6 -18.6 -8.6 -1.1 1992 -3.1 -10.1 -14.8 -22.7 -22.6 -24.2 -22.8 -27.2 -24.7 -18.7 -9.4 -3.8 1993 -3.1 -8.6 -16.5 -20.3 -27.0 -21.6 -22.3 - - -21.4 -8.9 -5.4 1994 -3.9 -11.9 -21.8 -18.7 -28.0 -23.1 - - - -17.7 -9.6 -4.0 1995 -4.2 -9.0 -19.7 -25.5 -26.9 -24.3 -25.4 -24.9 -25.3 -18.5 -8.0 -1.8 1996 -3.2 -8.0 -16.1 -16.7 -23.5 -24.5 -25.3 -19.7 -23.6 -20.7 -8.1 -2.0 1997 -3.8 -11.3 -19.6 -24.2 -21.6 -21.5 -27.5 - - -14.2 -5.2 -4.2 1998 -4.6 -8.6 -18.2 -26.1 - - - - - - - - 1999 - -9.4 -18.2 -24.2 -26.3 -21.8 -21.0 -27.6 -21.2 -16.8 -7.9 -3.9 2000 -3.9 -10.1 -15.6 -18.4 -22.7 -25.0 -23.4 -25.5 -25.7 -21.4 -7.1 -5.0 2001 -6.9 -9.1 -20.3 -22.1 -23.5 -20.9 -23.0 -32.2 -24.0 -18.6 -9.0 -1.8 2002 -2.6 -8.3 -15.8 -21.3 -19.3 -27.9 -28.9 -29.9 -22.0 -18.3 -11.1 -5.4 2003 - - - - -19.2 - -21.7 - - - - - 2004 - - - - - - - - - - - - 2005 - -9.5 -17.9 -24.5 - -25.2 -26.0 -27.3 -23.6 -17.7 -8.6 -2.1 2006 -2.5 - - - - - - - - -19.8 -8.7 -4.4 2007 -0.5 -10.3 -17.9 -21.7 -20.3 -20.8 -21.8 -23.1 -20.5 -20.0 -9.7 -2.5 2008 -2.3 -10.9 -17.2 -19.3 -22.3 -18.1 -27.1 -31.7 -19.8 -17.7 - - 2009 - - - - - - - - - - - -