Great_Wall 18Z temperature 1985 4.0 3.0 0.1 -0.3 -3.9 -4.0 -2.6 -3.5 -1.3 -1.1 0.5 1.7 1986 2.2 2.2 2.0 -1.7 -7.3 -7.4 -7.4 -6.7 -4.7 -1.9 -2.0 0.2 1987 1.7 2.3 0.9 -2.6 -5.0 -7.3 -13.1 -4.4 -6.2 -2.0 -0.2 1.3 1988 2.0 3.3 0.4 -0.6 -1.8 -7.1 -5.1 -8.2 -2.7 -2.7 -1.2 0.7 1989 2.4 3.2 2.8 -4.5 -1.0 -2.4 -0.9 -2.0 -2.7 -0.6 0.5 1.8 1990 3.1 3.7 1.8 -4.5 -4.7 -4.6 -5.4 -5.7 -2.4 -2.0 -0.6 0.7 1991 2.8 1.5 0.2 -2.4 -6.9 -8.5 -6.2 -6.6 -2.4 -3.0 -0.6 0.1 1992 2.3 1.5 -1.2 -1.0 -8.4 -8.4 -7.9 -4.6 -2.6 -3.0 -0.4 2.4 1993 2.6 3.0 1.1 -0.7 -2.2 -4.2 -3.4 -3.6 -3.3 -1.9 0.2 1.3 1994 2.9 2.3 1.7 -0.8 -3.5 -3.5 -10.6 -3.8 -3.1 -5.1 0.8 2.1 1995 3.5 3.2 1.0 -0.8 -2.4 -6.1 -12.2 -11.3 -6.4 -0.7 -0.5 1.5 1996 2.3 3.4 2.0 -1.0 -2.6 -4.6 -3.5 -4.9 -2.0 -1.6 -0.3 1.5 1997 3.9 2.9 2.2 -1.5 -1.5 -4.6 -6.5 -5.1 -6.4 -2.6 -1.9 1.4 1998 3.4 3.5 1.4 1.1 -1.7 -1.2 -5.4 -6.5 -7.9 -1.6 -0.4 0.9 1999 2.9 2.7 2.3 1.1 -0.7 -3.6 -3.4 -5.1 -4.9 -1.4 0.6 2.0 2000 2.7 2.9 1.6 0.2 -1.2 -2.2 -3.2 -6.2 -5.5 -1.7 -0.5 0.8 2001 2.2 1.1 0.5 -2.7 -1.0 -4.8 -6.7 -2.8 -2.1 -0.6 0.5 2.4 2002 3.1 3.2 0.2 0.2 -6.0 -9.4 -6.9 -4.2 -2.8 -5.5 -1.2 1.0 2003 2.8 3.0 0.4 -0.3 -2.5 -7.5 -5.6 -2.1 -2.4 -2.0 -1.2 -0.5 2004 2.0 2.5 1.1 -1.7 -2.5 -2.9 -3.7 -4.3 -4.4 -2.3 0.2 1.1 2005 2.0 2.7 0.6 -0.8 -3.5 -7.7 -6.0 -3.4 -1.6 -0.9 0.0 0.7 2006 3.8 2.9 3.3 0.0 -0.8 -4.2 -4.2 -7.7 -4.2 -1.0 0.0 1.9 2007 2.7 2.6 -0.4 -3.6 -4.3 -7.2 -12.2 -5.2 -2.9 -3.3 -0.9 1.2 2008 2.0 3.0 1.2 -1.3 -1.9 -3.4 -3.6 -5.0 -0.6 -0.4 0.9 2.6 2009 3.5 2.5 2.3 -1.3 -2.7 -7.0 -8.7 -8.1 -3.8 -2.3 -0.8 1.2 2010 1.8 0.8 0.4 -2.2 -2.4 -2.4 -4.3 -4.3 -2.7 0.1 1.3 1.1 2011 2.4 3.2 0.9 -4.1 -2.9 -7.9 -10.0 -7.2 -5.7 -0.5 0.5 2.1 2012 2.7 2.4 2.0 -3.8 -2.5 -6.7 -5.2 -4.0 -4.7 -2.1 -0.4 1.4 2013 2.2 2.6 2.2 1.3 -3.4 -4.0 -6.1 -7.6 -3.9 -1.3 -0.1 2.0 2014 2.7 1.6 0.7 -0.2 -2.6 -4.0 -2.8 -5.0 -2.9 -1.1 -0.3 2.9 2015 3.1 2.7 1.9 0.5 -2.0 -7.1 -7.6 -5.7 -7.1 -1.3 -0.4 2.1 2016 2.6 2.2 2.1 -2.0 - - -4.1 - - - - - 2017 - - - -1.1 -2.0 -5.7 -4.2 -5.2 -3.4 -1.2 1.2 2.8 2018 3.2 3.9 1.8 0.0 -2.3 -4.3 -4.5 -4.2 -2.5 -0.3 1.0 2.3 2019 2.8 - 1.6 -0.4 -3.4 -4.3 -4.1 -4.4 - -2.0 1.0 2.2 2020 4.2 3.9 1.9 0.0 -1.7 -3.3 -4.0 -7.6 -3.9 -1.1 1.9 - 2021 - 3.5 2.3 - - -2.6 -4.7 - - - - - 2022 - - 1.4 - - - - - -1.0 -0.4 - - 2023 - - - - - -4.1 -3.8 - - -2.5 0.6 - 2024 - - - - - - - - - - - -