Great_Wall 06Z temperature 1987 - - - - - -7.9 -13.6 -5.6 - -3.2 -0.8 - 1988 - 1.8 -0.1 - - - - - - - -2.6 -0.8 1989 - 1.6 - -4.4 -0.7 -2.2 - - -3.5 -1.3 -0.9 0.3 1990 1.6 2.3 0.9 -4.4 -4.9 -5.1 - -5.7 -4.5 -2.7 - - 1991 - 0.3 -0.6 -2.4 - - - - - - - - 1992 - - - - - - - - - - - - 1993 - - - - - - - - - - -0.9 -0.6 1994 1.1 1.3 0.2 -1.2 -3.7 -3.7 - - - -5.9 -0.8 - 1995 - - -0.1 - -2.0 -6.9 - - - - - 0.0 1996 - 2.0 1.2 -1.8 -2.7 -4.8 -4.0 -4.1 -2.1 -2.8 -1.3 - 1997 1.9 - 1.4 -1.6 -1.8 - -6.8 - - - - - 1998 1.9 1.7 0.9 0.7 -1.8 -1.3 -5.3 -6.9 -7.6 -2.5 -1.2 -0.2 1999 1.2 1.5 1.3 0.7 - - - - - - - - 2000 1.0 1.8 0.5 0.0 -1.9 -2.2 -3.3 -6.7 -6.5 -2.2 -2.1 -0.3 2001 - 0.0 - -2.8 -0.9 -5.2 - -2.8 - -0.8 - - 2002 1.4 1.8 -0.6 -0.2 -5.9 -9.1 -6.7 -4.9 -3.5 -6.4 -2.0 0.1 2003 1.2 1.8 -0.6 -1.0 -2.6 -7.3 -6.3 - - -3.1 -2.9 -1.9 2004 0.5 1.0 - - -2.6 -2.9 -3.9 -4.9 -4.3 - - 0.0 2005 0.5 1.6 0.1 -1.2 -3.4 -7.7 -6.1 -4.0 - -1.9 -0.9 -1.1 2006 - - 2.1 -0.9 - - -4.7 -8.2 -5.0 - -1.3 - 2007 1.2 1.2 -1.3 -4.5 - - - - -4.3 - -3.0 -0.5 2008 - - 0.2 -1.9 -2.0 -3.7 -4.2 -4.2 -1.6 - -0.7 0.5 2009 1.6 - - - - - - - - - - -