Marion 00Z 300hPa temperature 1968 - - - - - - - - - -47.9 -45.9 - 1969 -42.2 - - - - - - - - - - - 1970 -45.6 -41.6 - -49.6 - - - - - -49.8 -47.5 -43.3 1971 - - - -47.4 - -48.9 - - - - - - 1972 - - - - - - - - - - - - 1973 - -41.2 -41.8 - -49.2 -49.7 - - - - - - 1974 - -43.3 - -48.3 - - - - - - -46.5 -41.7 1975 -43.1 -39.0 -42.0 -44.3 -49.1 - - -50.6 -50.2 - -46.9 -45.4 1976 -42.5 -41.5 -42.6 -44.9 -47.5 -48.7 -50.6 -52.2 -48.2 -48.1 -47.2 -46.9 1977 -43.4 -41.4 -42.3 -45.8 -47.8 -49.4 -49.1 -49.3 -47.0 -47.4 -47.4 -43.4 1978 -43.8 -44.8 -41.8 -44.6 -48.0 -49.0 -49.3 -49.3 -49.2 -47.2 -45.4 -43.8 1979 -42.2 -41.9 -43.2 -45.3 -46.0 -49.1 -49.8 -49.3 -48.5 -46.5 -44.2 -46.6 1980 -43.4 -43.2 -42.5 -44.0 -46.5 -49.6 -49.2 -48.5 -49.4 -48.4 -46.0 -45.0 1981 -44.7 -41.4 -42.8 -45.8 -48.1 -50.0 -50.3 -50.5 -49.4 -47.1 -47.3 -44.4 1982 -44.3 -42.2 -42.8 -44.8 -48.4 -48.8 -48.4 -48.5 -47.8 -47.1 -45.8 -45.0 1983 -44.0 -42.5 -43.3 -44.0 -47.0 -48.8 -50.4 -50.0 -47.9 -45.3 -46.9 -43.7 1984 -43.1 -41.5 -41.7 -44.2 -47.8 -48.2 -50.5 -48.5 -50.2 -45.8 -45.7 -46.3 1985 -43.5 -44.0 -42.8 -42.4 -47.7 -48.3 -50.7 -48.9 -48.6 -46.8 -44.5 -45.3 1986 -43.6 -42.9 -44.1 -45.2 -48.3 -49.0 -50.0 -49.0 -46.5 -44.4 -44.5 -42.2 1987 -43.8 -40.9 -42.8 -44.7 -45.0 -49.0 -48.0 -48.9 -49.5 -46.9 -46.9 -46.3 1988 -43.2 -41.2 -42.7 -43.7 -48.1 -48.8 -51.4 -51.2 -48.9 -47.5 -45.4 -45.4 1989 -43.5 -41.8 -42.7 -45.8 -48.7 -50.3 -50.5 -50.7 -49.5 -48.5 -45.8 -43.3 1990 -42.5 -40.9 -44.4 -44.5 -47.6 -50.1 -50.0 -50.1 -47.9 -47.4 -46.7 -44.7 1991 -42.6 -44.2 -41.6 -45.2 - -49.4 -51.0 -50.2 -49.1 -46.3 -47.5 -43.4 1992 -44.5 -40.9 -41.5 -45.6 -47.9 -49.6 -49.9 -51.2 -50.4 -48.4 -46.3 -47.0 1993 -45.4 -41.1 -43.7 -44.1 -47.9 -50.0 -50.6 -50.9 -48.0 -46.6 -45.9 -44.4 1994 -43.9 -40.9 -42.4 -45.0 -47.8 -49.4 -50.3 -51.0 -49.1 -48.8 -47.3 -44.4 1995 -42.6 -43.7 -43.4 -46.4 -48.3 -50.3 -51.4 -49.2 -47.2 -48.7 -46.8 -43.9 1996 -42.4 -41.5 -43.6 -44.6 -47.5 -49.2 -50.5 -50.3 -48.5 -47.9 -45.4 -44.4 1997 -42.8 -40.9 -43.9 -45.7 -47.4 -49.6 -49.7 -50.4 -48.4 -47.7 -46.7 -45.4 1998 -42.3 -43.7 -42.7 -45.4 -48.1 -51.1 -50.3 -49.6 -49.9 -47.3 -45.9 -44.5 1999 -41.9 -42.7 -43.2 -45.0 -48.2 -50.1 -49.6 -50.2 -48.6 -46.5 -46.1 -45.5 2000 -43.1 -42.5 -43.2 -46.1 -48.6 -48.8 -49.8 -50.7 -48.1 -47.6 -44.0 -46.0 2001 -42.2 -40.0 -41.8 -45.5 -46.8 -49.4 -49.0 -50.2 -47.9 -47.6 -47.2 -44.7 2002 -42.9 -42.2 -43.1 -44.0 -47.7 -49.1 -50.7 -48.9 -49.0 -46.3 -46.0 -44.1 2003 -43.7 -42.1 -42.3 -44.1 -47.5 -50.2 -50.7 -50.8 -50.7 -48.5 -46.3 -44.3 2004 -42.7 -42.3 -44.9 -44.5 -49.0 -49.1 -51.1 -50.9 -49.0 -47.3 -46.7 -41.8 2005 -44.9 -41.0 - -45.0 -45.4 -49.3 -49.4 -50.7 -47.1 -46.3 -44.5 -48.0 2006 -43.6 -42.2 -43.5 -44.2 -48.1 -50.8 -50.3 -48.8 -48.4 -47.2 -45.5 -46.6 2007 -43.0 -41.7 -41.5 -42.8 -48.5 -49.4 -50.9 -49.8 -48.1 -46.5 -44.5 -42.9 2008 -43.2 -42.9 -43.6 -45.8 -47.3 -48.8 -52.5 -50.8 -50.5 -49.0 -46.3 -45.7 2009 -43.6 -42.3 -43.5 -45.2 -47.0 -48.6 -48.7 -49.5 -49.3 -46.6 -44.5 -47.5 2010 -42.4 -40.6 -43.3 -45.8 -48.3 -49.4 -49.9 -49.4 -49.3 -48.1 -45.7 -44.9 2011 -40.9 -42.5 -42.7 -46.7 -47.8 -49.9 -51.1 -48.5 -51.0 -47.9 -47.4 -44.2 2012 -42.4 -43.5 -43.2 -44.3 -48.4 -50.7 -49.5 -48.7 - - - - 2013 -44.5 -42.0 -44.4 - - - - - - - - - 2014 - - - -47.9 - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - -44.8 -45.8 -50.5 -50.7 -51.2 -47.5 -46.4 -44.3 -44.9 2018 - -41.1 - -45.5 -47.7 -49.7 -49.3 -51.8 -49.8 -46.3 -45.1 -45.1 2019 -42.4 -42.3 -42.8 -45.1 -46.2 -49.2 -50.9 -51.4 -47.8 - -45.6 -43.6 2020 -42.6 -40.9 -42.2 -46.6 - - - - - - - - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - -48.1 -48.0 -51.0 -47.9 -47.7 -47.0 -45.2 -43.3 2024 -41.7 -40.9 - - - - - - - - - -