Marion 12Z 700hPa temperature 1966 - - - - - - -10.9 - - - - - 1967 -9.0 - - - -5.4 -9.4 -11.2 -6.2 -9.2 - -8.9 -5.1 1968 - -5.2 - - -4.8 - -7.9 - -10.7 - - -9.7 1969 -4.3 -6.2 - - - -7.5 -11.1 - -12.2 -8.9 -9.0 -9.9 1970 -6.1 - -3.3 -10.3 -6.2 -7.0 -9.8 -11.0 -11.5 -9.1 -8.8 -4.8 1971 - -2.2 -2.0 -8.3 -9.4 -8.4 -10.0 -10.0 -9.7 -7.6 -7.9 -7.7 1972 -4.8 -3.6 -2.3 -3.4 -11.5 -5.2 -13.1 -8.4 -10.4 - -4.0 -6.5 1973 - -0.6 -5.5 -4.9 -8.6 -8.0 -7.3 -11.9 -9.4 - - -3.6 1974 -3.3 -0.7 -1.7 -6.1 -3.7 -6.1 -8.9 -10.1 -8.8 -8.0 -7.6 -4.2 1975 -4.6 -2.4 -2.1 -3.3 -5.9 -7.1 -12.3 -12.6 -10.7 -6.3 -7.3 -5.9 1976 -5.2 -2.7 -4.7 -6.2 -5.3 -8.1 -11.9 -11.3 -8.1 -9.1 -9.1 -6.2 1977 -4.6 -2.1 -1.5 -6.1 -7.0 -8.8 -9.1 -11.0 -8.5 -7.7 -8.0 -6.4 1978 -4.0 -4.9 -2.6 -3.5 -8.0 -8.6 -8.1 -10.1 -8.8 -7.2 -8.5 -3.4 1979 -3.9 -2.1 -3.2 -5.0 -7.3 -6.6 -7.4 -9.6 -11.2 -8.7 -8.1 -6.4 1980 -4.4 -2.2 -1.6 -5.4 -4.9 -8.8 -10.2 -8.9 -10.6 -9.2 -8.3 -5.3 1981 -4.2 0.1 -3.0 -5.8 -5.2 -7.6 -7.8 -9.1 -9.0 -6.9 -5.8 -4.9 1982 -4.0 -3.2 -3.1 -2.5 -6.9 -5.7 -10.4 -8.9 -8.9 -7.0 -7.7 -6.1 1983 -5.4 -2.6 -4.0 -3.8 -6.2 -8.9 -10.4 -10.4 -8.0 -8.2 -5.0 -5.0 1984 -3.2 -1.5 -4.4 -4.9 -7.3 -8.0 -9.0 -10.3 -9.7 -5.2 -6.1 -6.4 1985 -3.4 -1.6 -2.3 -2.2 -7.9 -8.4 -8.2 -10.0 -8.5 -7.0 -3.4 -4.1 1986 -2.8 -2.9 -4.8 -4.1 -8.7 -7.8 -8.8 -7.9 -7.8 -6.5 -6.3 -5.1 1987 -4.0 -2.2 -3.7 -5.2 -5.8 -9.1 -6.2 -9.4 -10.4 -6.9 -6.7 -6.1 1988 -3.8 -3.5 -3.6 -3.2 -8.7 -8.1 -12.1 -12.6 -10.2 -11.3 -6.7 -6.0 1989 -2.4 -0.7 -0.4 -6.4 -7.0 -9.3 -9.6 -10.9 -10.5 -9.1 -5.7 -4.2 1990 -3.3 -1.1 -2.0 -3.5 -8.8 -11.9 -8.2 -9.9 -8.9 -8.9 -6.0 -5.4 1991 -4.6 -2.6 -2.9 -5.2 -5.4 -8.3 -9.9 -11.8 -9.6 -6.8 -8.2 -4.5 1992 -5.6 -1.7 -1.4 -4.2 -9.8 -10.5 -10.7 -10.8 -11.4 -8.3 -5.4 -8.1 1993 -6.5 0.1 -2.5 -3.6 -9.4 -8.4 -9.7 -9.7 -9.7 -8.0 -6.1 -6.1 1994 -5.1 -1.3 -2.2 -5.1 -5.6 -11.2 -10.5 -12.2 -10.1 -9.1 -9.5 -4.4 1995 -3.2 -4.3 -2.9 -7.7 -7.3 -10.8 -12.0 -9.1 -8.2 -7.9 -8.3 -3.2 1996 -3.9 -2.3 -3.0 -3.6 -3.9 -8.7 -8.9 -8.5 -10.1 -7.8 -6.7 -6.0 1997 -2.3 -1.8 -3.8 -4.3 -6.0 -9.7 -8.8 -10.0 -6.3 -8.9 -6.3 -5.6 1998 -5.6 -5.9 -3.5 -5.0 -6.0 -10.8 -9.7 -8.6 -11.2 -8.6 -5.3 -3.7 1999 -2.2 -3.1 -3.7 -4.4 -7.5 -9.0 -8.3 -8.0 -9.3 -7.0 -7.0 -3.6 2000 -2.9 -3.0 -4.4 -4.6 -7.2 -7.9 -9.0 -10.6 -12.3 -6.4 -4.9 -9.1 2001 -1.9 -0.9 -3.4 -3.6 -6.5 -8.4 -9.0 -10.4 -10.6 -8.4 -6.8 -5.2 2002 -2.3 -3.7 -3.6 -2.3 -6.4 -10.0 -9.1 -7.4 -10.4 -7.6 -8.2 -4.5 2003 -6.5 -2.9 -2.0 - - - - - - - -7.3 -6.5 2004 -3.9 -1.8 -4.2 -4.3 -8.8 -6.3 -10.5 -11.6 -8.1 -8.1 -8.1 -4.7 2005 -5.1 - - -4.6 -7.0 -8.7 -9.6 -10.4 -9.9 -5.9 -5.1 -10.4 2006 -5.6 -3.9 -4.6 -8.0 - - - - -10.1 -7.1 -8.0 -6.7 2007 -5.1 0.5 -1.5 -3.0 -10.9 -6.4 -11.7 -10.3 -10.4 -7.9 -7.5 -2.5 2008 -4.4 -3.2 -3.7 -6.8 -6.5 -6.2 -9.6 -10.6 -9.9 -9.4 -7.0 -5.4 2009 -3.4 -2.8 -3.4 -5.2 -4.0 -6.1 -11.6 -7.8 -12.0 -4.6 -4.4 -7.2 2010 -3.5 -1.9 -4.5 -7.6 -7.9 -8.0 -8.9 -8.3 -9.6 -8.2 - - 2011 - - - -5.8 -5.1 -8.2 -11.1 -7.3 -11.3 -7.4 -8.7 -3.5 2012 -2.8 -3.6 -3.9 -4.0 -8.2 -10.3 -9.3 -5.2 - - - - 2013 -5.8 -2.0 -2.8 - - - - - - - - - 2014 - - - -8.6 - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - -6.3 -9.5 -8.8 -9.8 -9.8 -7.8 -8.6 -8.1 2017 -2.8 -3.1 -4.7 -1.9 -5.3 -11.3 -11.7 -10.3 -10.8 -7.6 -4.9 -7.4 2018 -2.5 -2.0 -5.5 -4.1 -6.2 -8.2 -7.4 -13.2 -9.5 -4.8 -6.1 -4.3 2019 -4.3 -3.7 -3.2 -4.2 -6.3 -8.0 -11.4 -12.3 -9.4 -9.8 -10.0 -5.7 2020 -5.1 -3.0 -2.7 -7.2 - - - - - - - - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - -6.1 -7.4 -10.7 -6.8 - -8.6 -5.5 -4.4 2024 -1.6 0.4 -2.8 -3.7 - - - - - - - -