Whitlock 06Z temperature 1982 - -7.3 -17.5 -24.2 -23.9 -25.7 -27.8 -24.8 -26.5 -19.7 -9.5 -4.0 1983 -3.0 -7.8 -13.8 -18.3 -18.2 -24.5 -28.3 -26.3 -23.3 -18.9 -11.3 -4.5 1984 -3.4 -7.6 -14.2 -19.5 -20.7 -23.5 -25.9 -26.6 -25.0 -17.7 -10.1 -4.2 1985 -3.3 -8.5 -14.5 -23.5 -22.9 -25.1 -30.5 -26.1 -25.3 -19.7 -11.7 -5.8 1986 -4.7 -6.9 -14.1 -21.4 -18.9 -24.2 -26.3 -29.2 -29.9 -18.6 -11.0 -5.3 1987 -2.7 -8.5 -16.4 -23.0 -23.5 -20.1 -24.2 -26.8 -23.7 -17.2 -11.2 -3.8 1988 -3.4 -7.6 -16.0 -19.0 -21.5 -21.7 -26.1 -20.9 -21.4 -14.7 -10.4 -4.9 1989 -4.4 -7.9 -13.7 -18.9 -25.0 -28.9 -24.4 -26.9 -22.6 -18.1 -9.6 -4.2 1990 -3.6 -7.6 -15.3 -22.4 -22.5 -25.5 -23.5 -28.1 -26.7 -18.5 -9.8 -4.2 1991 -3.7 -5.7 -15.4 -20.8 -24.4 -21.0 -25.9 -25.3 -21.7 -17.9 -10.3 -3.9 1992 - - - - - - - - - - - - 1993 - - - - - - - - - - - - 1994 - - -19.6 -19.1 -28.1 -24.2 -23.7 -29.3 -25.7 -17.2 -9.6 -4.3 1995 -4.9 -7.5 -17.6 -24.9 -26.9 -26.2 -25.6 -26.1 -25.4 -18.3 -8.9 -2.6 1996 -3.3 -6.5 -13.9 -19.6 -25.2 -25.6 -27.5 - - -20.4 -9.1 -3.3 1997 -3.5 -8.5 -18.4 -25.8 -25.0 -23.1 - - - - -6.6 -4.1 1998 -4.4 -7.1 -18.0 - - - - - - - - - 1999 - - - - - - - - - - - - 2000 - - - - - - - - - - - - 2001 - - -17.2 -22.7 -23.3 -21.8 -24.4 -30.7 -24.0 -17.8 -10.2 -3.3 2002 -2.3 -7.4 -14.5 -22.0 -20.7 -26.6 -28.7 -30.2 -22.1 -18.3 -10.8 -5.4 2003 - - - - - - - - - - - - 2004 - - - - - - - - - - - - 2005 - - - - - - - - - - - - 2006 - - - - - - - - - - - - 2007 - - - - - - - - - - - - 2008 - - - - - - - - - - - - 2009 - - - - - - - - - - - -