Marion 00Z 200hPa temperature 1968 - - - - - - - - - -53.5 -54.2 - 1969 - - - - - - - - - - - - 1970 -53.0 -53.8 - -60.7 - - - - - - -52.3 - 1971 - - - -56.2 - -56.8 - - - - - - 1972 - - - - - - - - - - - - 1973 - -56.0 -57.2 - -58.1 - - - - - - - 1974 - -52.7 - - -63.6 -61.4 - - - - -53.0 - 1975 -49.6 -49.2 -53.7 -57.5 -59.9 - - -54.1 -56.1 - -50.6 -51.8 1976 -51.6 -51.7 -52.8 -55.2 -60.7 -59.7 -57.5 -58.7 -56.6 -58.1 -53.7 -51.9 1977 -51.4 -52.7 -54.7 -55.7 -57.1 -54.8 -57.8 -57.0 -53.6 -53.1 -55.1 -52.8 1978 -51.5 -51.5 -53.2 -56.1 -56.1 -57.3 -61.6 -57.0 -55.2 -53.4 -51.8 -53.4 1979 -50.5 -51.0 -54.2 -56.0 -58.0 -57.4 -61.3 -58.4 -57.1 -49.7 -51.8 -52.2 1980 -51.3 -53.9 -55.8 -54.3 -56.0 -57.9 -58.4 -57.9 -55.2 -53.2 -51.1 -52.8 1981 -51.1 -53.9 -55.0 -55.9 -58.4 -59.4 -60.6 -59.3 -56.8 -54.5 -55.7 -53.8 1982 -53.3 -52.9 -54.8 -58.9 -59.3 -61.3 -59.2 -58.4 -55.8 -55.5 -50.4 -50.9 1983 -52.4 -54.7 -53.7 -57.2 -57.9 -56.7 -58.1 -57.9 -54.4 -55.0 -55.5 -52.7 1984 -53.7 -52.4 -54.2 -56.4 -55.6 -58.4 -58.2 -54.7 -55.5 -55.4 -52.9 -50.0 1985 -53.2 -54.7 -54.5 -56.1 -57.9 -59.2 -58.9 -56.7 -57.6 -58.0 -58.1 -55.4 1986 -54.9 -54.8 -54.4 -57.7 -56.0 -58.1 -60.8 -59.6 -57.0 -53.6 -55.8 -52.3 1987 -51.2 -54.0 -54.6 -55.6 -56.0 -60.5 -59.2 -58.8 -55.2 -57.1 -54.0 -53.3 1988 -51.8 -53.6 -55.1 -56.4 -54.5 -58.2 -56.9 -54.2 -51.2 -51.5 -53.6 -52.0 1989 -54.2 -55.9 -56.9 -55.6 -57.9 -58.4 -61.3 -58.2 -56.1 -56.7 -56.8 -54.5 1990 -53.8 -54.8 -55.2 -55.5 -53.4 -55.0 -58.7 -58.7 -58.8 -54.1 -53.8 -53.2 1991 -52.0 -54.0 -55.4 -57.0 - -59.7 -59.3 -55.7 -56.9 -51.4 -55.5 -54.0 1992 -51.2 -55.4 -56.3 -56.9 -55.8 -52.8 -54.2 -59.0 -56.2 -57.5 -53.3 -53.3 1993 -51.6 -57.1 -56.7 -57.9 -56.3 -59.7 -60.1 -59.4 -56.4 -54.7 -56.0 -54.4 1994 -53.7 -55.2 -57.4 -57.8 -60.0 -56.9 -58.5 -58.0 -57.1 -54.3 -52.0 -54.5 1995 -54.8 -54.3 -55.2 -54.8 -60.1 -59.6 -57.4 -57.2 -54.2 -55.4 -55.7 -58.0 1996 -53.1 -53.6 -56.8 -57.8 -61.4 -57.4 -59.1 -56.0 -52.6 -58.7 -54.6 -55.6 1997 -53.7 -52.4 -54.3 -59.0 -60.6 -60.7 -59.7 -56.1 -57.3 -56.7 -52.5 -54.1 1998 -52.1 -52.2 -57.5 -58.2 -59.9 -57.8 -59.9 -57.9 -54.8 -55.9 -55.6 -56.1 1999 -54.1 -52.8 -54.7 -57.1 -58.4 -61.4 -61.1 -59.8 -54.8 -56.6 -54.8 -54.8 2000 -54.9 -55.7 -55.3 -58.4 -58.5 -59.3 -59.7 -58.3 -52.4 -56.7 -57.5 -50.8 2001 -54.1 -54.1 -55.5 -58.1 -57.9 -59.1 -58.8 -59.3 -57.3 -58.2 -56.0 -51.0 2002 -56.2 -54.3 -55.2 -59.9 -56.8 -57.1 -57.3 -59.1 -56.0 -54.3 -55.0 -55.6 2003 -52.9 -54.0 -55.3 -58.4 -58.1 -60.4 -59.1 -59.9 -56.5 -57.5 -55.7 -55.4 2004 -52.8 -56.3 -53.7 -55.2 -58.8 -60.7 -60.2 -59.2 -54.6 -56.7 -54.4 -57.0 2005 -52.5 -51.5 - -57.9 -57.7 -56.5 -59.2 -56.2 -54.5 -56.7 -57.1 -50.2 2006 -51.8 -54.7 -53.0 -54.7 -62.4 -59.8 -59.7 -58.7 -57.4 -60.9 -55.6 -55.5 2007 -54.9 -54.1 -55.9 -60.3 -56.8 -60.4 -56.8 -55.9 -55.5 -56.8 -51.3 -55.6 2008 -52.4 -51.2 -53.4 -54.4 -59.6 -62.1 -60.8 -59.1 -56.6 -56.7 -54.8 -56.0 2009 -52.0 -53.9 -55.9 -56.7 -61.1 -59.6 - -62.0 -55.9 -58.6 -53.0 -52.8 2010 -53.3 -54.0 -54.4 -55.5 -58.2 -59.7 -59.0 -56.7 -55.4 -58.4 -52.9 -53.2 2011 -53.1 -54.3 -55.4 -57.5 -61.8 -58.9 -61.3 -59.1 -54.1 -53.4 -54.9 -55.8 2012 -54.4 -51.5 -54.9 -57.2 -57.9 -58.1 -57.9 -58.1 - - - - 2013 -49.6 -54.1 -52.9 - - - - - - - - - 2014 - - - -57.6 - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - -59.7 -59.7 -56.3 -57.2 -57.5 -53.0 -54.9 -55.5 -53.5 2018 - -55.8 - -57.7 -60.0 -58.7 -62.1 -57.0 -57.1 -57.0 -55.1 -56.7 2019 -54.0 -53.6 -54.2 -58.2 -59.3 -59.1 -56.0 -55.1 -53.2 - -56.7 -56.2 2020 -54.3 -52.7 -58.2 -55.6 - - - - - - - - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - -58.8 -57.8 -59.8 -58.1 -52.1 -58.8 -53.2 -54.9 2024 -55.7 -58.0 - - - - - - - - - -