Marble_Point temperature 1980 - - -15.6 -18.6 -19.7 -25.6 -23.3 -23.0 -25.8 -19.3 -8.6 -2.7 1981 - -8.2 -12.3 -23.4 -21.3 -19.0 -21.5 -24.3 -28.0 -20.3 -11.7 -3.9 1982 -3.7 -8.4 -19.7 -23.7 -24.6 -26.1 -28.8 -23.9 -27.3 -20.1 -8.9 -2.0 1983 -3.3 -10.3 -15.7 -16.1 -16.1 -24.6 -28.0 - -24.7 -18.2 -9.6 -3.8 1984 -3.1 -10.2 -14.6 -17.3 -18.9 -22.2 -23.4 -25.9 -24.4 -17.0 - - 1985 - -10.4 -14.8 -21.4 - -22.3 -31.1 -25.3 -24.2 -19.3 -11.5 -4.6 1986 -3.7 -6.3 -15.5 -19.8 -18.2 -22.9 -24.9 -29.9 -31.9 -18.5 -10.6 -3.4 1987 -1.1 -9.3 -18.7 -23.0 -22.0 -19.5 -23.8 -27.6 -22.2 -17.4 -9.3 -2.5 1988 -3.2 -9.9 -18.3 -19.1 -20.4 -20.7 -25.0 -19.6 -20.1 -12.8 - - 1989 - -9.2 -14.7 -18.2 -23.5 -28.5 -23.9 -26.3 -22.8 -16.1 -8.3 -1.9 1990 -2.4 -8.6 -15.5 -20.3 -22.4 -23.4 -25.1 -27.7 -27.7 -18.0 -8.0 -1.7 1991 -2.3 -5.1 -17.3 -19.6 -23.8 -20.2 -25.3 -26.1 -20.2 -17.8 -8.2 -0.8 1992 -2.6 -9.1 -14.2 -22.7 -22.9 -24.5 -22.6 -27.4 -24.9 -18.1 -9.1 -3.2 1993 -2.6 -7.7 -15.9 -20.0 -26.6 -21.9 -22.1 - - -20.9 -8.7 -5.1 1994 -2.9 -10.9 -21.0 -18.5 -28.0 -22.7 - - - -17.1 -9.1 -3.7 1995 -3.6 -8.4 -19.1 -25.0 -26.7 -24.1 -25.3 -24.6 -25.4 -17.8 -7.8 -1.4 1996 -2.7 -7.0 -15.7 -16.7 -23.4 -24.5 -25.0 -20.1 -22.7 -19.6 -8.1 -1.6 1997 -3.2 -10.2 -19.0 -24.6 -21.9 -20.9 -27.4 - - -13.8 -4.9 -3.8 1998 -4.1 -7.6 -17.4 -26.3 - - - - - - - - 1999 - -8.6 -17.4 -24.2 -25.9 -21.6 -21.1 -27.8 -20.6 -16.2 -7.5 -3.3 2000 -3.6 -9.0 -14.8 -18.4 -22.6 -24.8 -23.1 -25.2 -25.4 -20.7 -7.1 -4.3 2001 -6.2 -8.0 -19.5 -21.9 -22.8 -21.2 -22.6 -32.0 -23.7 -18.0 -8.7 -1.5 2002 -2.0 -7.5 -15.1 -20.7 -19.1 -27.8 -29.4 -30.4 -21.9 -17.5 -10.5 -4.9 2003 - - - - - - -21.8 - - - - - 2004 - - - - - - - - - - - - 2005 - -8.1 -17.1 -24.0 -20.6 -25.1 -25.6 -27.6 - -16.5 -8.1 -1.4 2006 -2.2 - - - - - - - - -19.2 -8.1 -3.9 2007 -0.4 -9.4 -17.0 -21.9 -19.5 -20.5 -22.0 -23.0 -20.3 -19.2 -9.0 -2.2 2008 -1.7 -10.0 -16.5 -18.8 -22.7 -18.2 -27.1 -31.6 -19.3 -17.3 - - 2009 - - - - - - - - - - - -