GC41 00Z temperature 1984 - - - - - - - - - - -40.7 - 1985 -27.2 -40.3 - - - - - - - - - - 1986 - -28.7 - -52.8 -54.7 -56.2 - -50.3 - -44.1 - - 1987 -25.6 -37.7 - - -52.8 - - - - - - - 1988 -26.5 -37.9 -49.4 -53.5 -49.4 -53.2 -55.1 - - - - - 1989 - - - - -60.1 - -51.9 -53.7 -44.3 - -39.7 -23.1 1990 - - - -50.1 -53.5 - - - - - - - 1991 -25.9 - -45.5 - - -44.4 - -45.6 - - - - 1992 -26.5 - - -54.5 -54.1 - - -44.8 -57.0 -52.3 -36.2 - 1993 - - -45.2 -51.7 -59.4 -54.8 - -53.5 -49.1 - -37.5 -28.1 1994 -26.8 -37.7 - -53.3 -57.7 - -50.0 -58.0 -49.4 -45.2 -36.8 -30.1 1995 -31.3 -38.9 -45.3 - -57.8 -47.5 - -47.1 -48.9 -49.2 -35.2 - 1996 - -38.8 -42.7 -48.6 -54.7 - -46.7 - -50.2 -47.7 - - 1997 -27.2 -35.9 - - - -48.7 - -57.2 -52.9 - -32.0 - 1998 -28.9 - -51.3 - - -53.5 -54.4 -53.5 -55.7 -46.0 -37.5 -24.9 1999 - -36.6 -49.8 - -57.5 -48.2 -56.8 -53.7 -56.1 -47.2 -37.7 -31.8 2000 -29.8 - - -56.4 -51.8 -50.8 - - -46.4 -46.8 -34.4 -28.3 2001 -25.6 -37.4 -42.9 - -47.7 -52.7 - - - - - - 2002 - - -38.7 - - -48.1 -47.7 - -50.6 -48.6 -40.4 - 2003 - - - - - - - - - - - - 2004 - - - - - - - - - - - - 2005 - -33.5 -39.8 -46.2 - -47.1 - -50.0 - - - - 2006 - - - - - - - - - - - - 2007 - - - - - - - - - - - - 2008 - - - - - - - - - - - - 2009 - - - - - - - - - - - -