Palmer 12Z temperature 1976 - - - - - - - - - - - - 1977 - - - - - - - - - - - - 1978 - - - - - - - - - - - - 1979 1.1 0.6 0.4 -1.3 - - - - -5.4 -4.4 -0.6 0.4 1980 0.5 2.2 -1.9 - -3.7 -6.9 - -12.6 - - - - 1981 0.9 -0.1 -0.9 -1.8 -4.6 -6.5 -6.8 -8.6 -9.6 -5.2 -2.3 -1.1 1982 - - - -3.5 -2.8 -5.1 -9.7 -8.2 -8.5 -5.1 -1.8 1.8 1983 2.3 0.5 -0.3 -1.7 -2.3 -3.3 -3.0 -4.4 -3.8 -3.3 0.3 1.3 1984 - - - - - -6.5 -7.1 - - - - - 1985 - - 0.3 -1.3 -4.2 -4.2 - - - - - 2.5 1986 3.3 - 1.9 0.4 -4.7 - - -10.2 -9.8 -4.9 -1.2 0.9 1987 2.4 0.9 -0.3 -2.6 - - -16.5 - - -1.8 - - 1988 - 2.1 0.8 - -1.5 -2.7 -2.4 -7.5 - - 1.1 - 1989 - - - - - - - - - - 0.9 2.1 1990 3.1 3.3 1.5 - - -3.4 -2.9 - - - - - 1991 - - - - - - - - - -6.5 - - 1992 - - - - - - - - - - - - 1993 - - -0.1 - -2.9 -5.0 - - - -3.8 0.2 0.4 1994 1.7 - - -0.8 - -4.7 -10.6 -6.3 - -7.0 0.9 - 1995 - - - 0.0 - -5.4 -8.1 -11.8 - -2.4 -1.4 - 1996 - - - - - - - -6.1 -1.7 - - - 1997 - - 0.2 - - - - - - - - - 1998 - - - - - - - - - - - - 1999 - - - - - - - - - - - - 2000 - - - - - - - - - - - - 2001 - - - -1.7 - - - - - - - 0.9 2002 - - -0.7 0.2 -4.7 -8.8 - -6.7 -2.7 -4.4 -1.0 1.9 2003 2.9 2.4 0.1 -0.7 -2.5 -5.0 -3.3 -2.0 -4.4 -2.8 -0.9 0.9 2004 2.5 1.7 1.2 -0.6 -2.5 -2.8 -3.5 -7.1 -6.8 -4.5 0.2 1.3 2005 1.5 1.6 0.0 -1.2 -2.9 -5.9 -5.9 -6.2 -3.1 -1.2 0.1 0.6 2006 2.1 2.7 2.3 - - -2.9 -4.1 -6.4 -5.7 -0.6 -0.8 2.4 2007 2.5 1.7 -0.1 -2.2 -1.9 -4.4 -6.5 -4.8 -2.7 -2.6 -0.6 1.3 2008 2.1 2.1 1.0 -1.0 -1.1 -2.0 -4.0 -7.7 -1.4 -0.7 0.6 0.6 2009 2.7 2.0 1.5 -1.8 -1.0 -4.1 -6.1 -4.0 -4.6 -3.0 -1.1 1.5 2010 1.7 1.5 0.7 -1.0 -1.6 - - - - - 0.6 1.4 2011 2.0 2.3 1.0 -2.0 -1.6 -4.2 -6.6 -7.2 -6.1 -2.1 0.3 1.7 2012 1.1 0.6 1.3 -0.9 -0.5 -4.9 -3.4 -3.1 -3.2 -3.9 -1.3 0.9 2013 2.0 1.8 1.3 0.6 -2.0 -3.5 -5.1 -7.4 -7.4 -2.8 -2.4 -0.1 2014 1.2 0.7 -0.2 -0.2 -0.9 -2.9 -4.1 -5.8 - -2.9 -1.1 0.5 2015 1.7 1.3 0.3 -0.6 -2.6 -6.3 -11.1 -9.5 -10.3 -2.2 0.1 0.6 2016 1.0 1.2 0.6 -2.9 -2.0 -2.0 -7.0 -8.0 -1.9 -0.9 -0.3 1.5 2017 3.1 2.6 1.7 -0.9 -1.1 -3.4 -4.2 -4.5 -7.9 -3.3 -1.4 1.0 2018 1.7 2.4 1.1 0.0 -2.8 -3.2 -5.2 -5.8 -5.7 -2.7 -0.2 0.4 2019 1.2 0.7 0.6 -0.4 -2.8 -3.2 -4.2 -5.1 -6.1 -3.2 -1.5 0.7 2020 2.9 2.2 0.7 -0.5 -2.0 -2.5 -4.5 -4.7 -4.7 -2.4 0.3 0.3 2021 2.0 1.7 0.6 -1.2 -2.0 -2.4 -3.1 -6.7 -2.0 -0.7 0.3 0.8 2022 1.9 2.1 0.7 -0.7 -0.7 -2.1 -2.6 -1.1 -0.7 -1.6 0.7 1.5 2023 2.6 2.3 0.8 -0.4 -0.4 -2.6 -3.0 -5.5 -4.7 - -1.0 0.6 2024 1.6 1.6 0.3 -1.3 - - - - - - - -