MPA 12Z 850hPa temperature 1987 - - - - - - - - - - - 1.8 1988 -0.2 4.5 5.3 -1.9 -0.8 -3.6 -2.4 -5.1 -2.1 -3.4 0.3 1.4 1989 1.8 3.2 2.1 -0.8 -1.2 -1.8 -0.6 -2.8 -3.7 -0.7 1.4 3.4 1990 - 4.5 1.5 -4.4 -2.6 -1.6 -0.5 -4.4 -2.3 -1.5 -1.0 -0.1 1991 5.0 2.5 1.7 0.5 -1.3 -6.1 -2.5 -2.9 -3.5 -2.6 -1.1 0.7 1992 6.0 1.0 1.8 3.1 -3.1 -5.3 -3.1 -1.7 -2.5 -0.2 -0.6 3.9 1993 -0.3 4.6 2.6 -0.1 -0.9 -1.7 -3.1 -2.4 -3.1 -0.5 1.8 0.0 1994 2.5 0.9 1.5 -1.4 -4.2 -3.6 -5.1 -2.2 -3.8 -3.5 1.1 1.3 1995 4.8 1.9 - 2.4 -0.9 -5.0 -6.5 -7.8 - 0.0 -0.6 1.7 1996 1.3 2.3 3.2 -0.5 0.9 -3.3 -2.4 -2.1 -0.5 -0.4 2.1 0.9 1997 4.9 0.7 3.5 -0.3 -1.0 -3.9 -4.8 -3.3 - - - - 1998 3.2 1.8 2.5 3.2 -1.1 -1.5 -1.8 -2.9 -3.8 -0.4 0.6 0.1 1999 2.7 1.5 1.4 2.6 -1.3 -3.9 -2.8 -2.2 -4.5 -0.6 2.9 1.0 2000 2.9 3.8 2.7 1.1 -1.7 -4.0 -5.3 -4.5 -7.3 -1.8 -0.7 -1.1 2001 2.8 2.5 1.7 -1.1 -1.8 -4.1 -6.3 -2.5 -3.0 -0.1 1.9 2.5 2002 3.0 3.6 -0.8 0.3 -5.1 -5.9 -3.7 -3.1 -3.1 -3.2 -1.8 2.5 2003 0.2 3.7 1.8 1.1 -0.7 -3.4 -1.8 -1.9 -3.2 -1.4 -1.8 -0.3 2004 4.1 6.4 5.0 0.2 -2.8 -1.6 -3.5 -2.6 -2.7 -0.3 0.0 3.4 2005 2.3 5.4 1.6 -1.0 -1.4 -2.6 -3.6 -3.7 -0.7 -3.3 0.0 -1.0 2006 3.5 3.1 3.2 0.7 1.7 -3.6 -4.2 -3.5 -5.2 -0.3 -0.6 2.6 2007 2.3 1.2 0.2 -2.6 -4.2 -4.1 -5.4 -3.7 -1.0 -1.0 -2.7 1.2 2008 2.6 4.2 3.4 -2.2 -2.6 -2.9 -3.8 -5.9 -0.3 -1.1 -0.5 1.8 2009 - - - - - - - - - - - - 2010 - - - - - - - - - - - - 2011 - - 8.1 - - - - - - - - - 2012 - - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - - - - 2018 - - - - - - - - - - - - 2019 - - - - - - - - - - - - 2020 - - - - - - - - - - - - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - - - - - - - - - 2024 - - - - - - - - - - - -