Davis 00Z 700hPa temperature 1959 - - - -22.7 -22.6 -22.9 -25.8 -24.8 -27.3 -23.6 -22.1 -17.3 1960 -16.4 -18.1 -21.8 -23.0 -23.8 -26.4 -25.9 -24.9 -24.9 -24.7 -20.8 - 1961 - -16.7 -21.0 -21.1 -23.0 -22.1 -24.8 -24.8 -22.5 -21.8 -19.1 -20.2 1962 -20.2 -18.4 -22.5 -22.0 -24.5 -21.0 -26.3 -26.5 -25.7 -24.6 -21.6 -18.5 1963 -16.5 -20.1 -21.6 -22.7 -23.9 -23.5 -25.9 -21.4 -23.3 -25.8 -22.0 -16.7 1964 -16.3 -18.1 -20.6 -23.0 -23.1 -23.4 -20.9 -24.0 -27.3 -24.7 - - 1965 - - - - - - - - - - - - 1966 - - - - - - - - - - - - 1967 - - - - - - - - - - - - 1968 - - - - - - - - - - - - 1969 - - - -22.4 -22.9 - -26.2 -29.5 -26.0 -23.8 -20.5 -16.4 1970 -17.5 -20.5 -17.0 -21.6 -20.9 -24.6 -23.9 -25.6 -25.9 -24.4 -21.1 -16.8 1971 -14.7 -16.7 -20.6 -21.7 -23.0 -24.9 -25.9 -25.0 -24.2 -22.7 -21.9 -15.4 1972 -14.5 -18.6 -21.6 -22.0 -25.3 -24.7 -23.8 -21.6 -22.9 -23.6 -21.6 -18.3 1973 -17.4 -19.0 -22.5 -22.8 -21.9 -23.3 -26.9 -26.4 -22.8 -22.1 -19.5 -19.3 1974 -17.0 -18.3 -21.8 -21.8 -25.7 -22.3 -24.6 -23.7 -25.6 -22.2 -19.2 -15.2 1975 -15.4 -18.4 -21.2 -23.1 -22.2 -22.7 -24.4 -26.4 -25.2 -24.0 -19.7 -18.4 1976 -15.8 -18.7 -22.1 -22.9 -25.0 -25.5 -25.9 -27.5 -27.4 -23.6 -19.8 -15.9 1977 -14.9 -17.4 -23.1 -24.3 -23.4 -23.0 -23.7 -22.1 -28.1 -24.6 -21.5 -18.8 1978 -18.8 -19.9 -21.1 -22.9 -23.6 -24.3 -23.2 -27.3 -24.6 -25.6 -19.7 -19.4 1979 -16.1 -18.9 -22.7 -20.5 -23.5 -24.6 -26.1 -27.5 -24.8 -25.4 -18.7 -17.9 1980 -15.8 -18.8 -20.8 -20.4 -26.4 -24.6 -21.9 -24.2 -23.1 -25.5 -19.0 -17.7 1981 -17.4 -17.2 -19.5 -22.9 -24.6 -25.0 -23.4 -22.9 -25.0 -25.4 -20.4 -16.6 1982 -17.8 -19.4 -22.6 -25.9 -24.7 -25.5 -24.7 -28.4 -28.9 -24.4 -19.4 -14.8 1983 -17.2 -19.5 -20.3 -22.9 -22.2 -24.1 -26.5 -24.5 -23.3 -24.2 -23.6 -19.0 1984 -16.2 -19.9 -20.7 -22.5 -22.1 -24.7 -26.4 -25.3 -23.7 -27.7 -20.7 -16.3 1985 -14.4 -18.5 -20.3 -21.0 -24.0 -21.3 -27.2 -25.8 -24.8 -24.5 -22.3 -19.1 1986 -17.3 -15.6 -19.8 -22.8 -22.0 -26.0 -25.4 -26.5 -24.7 -23.6 -20.7 -18.1 1987 -15.6 -17.7 -22.1 -21.8 -25.7 -22.7 -23.4 -27.9 -27.4 -23.6 -20.1 -17.4 1988 -15.7 -20.3 -20.0 -22.4 - -22.2 -23.4 -24.6 -23.2 -22.0 -21.5 -19.5 1989 -17.6 -17.9 -21.4 -23.9 -25.0 -23.7 -24.0 -22.9 -22.3 -22.2 -21.2 -16.2 1990 -15.0 -17.7 -21.9 -19.1 -22.5 -25.3 -20.7 -25.3 -26.8 -23.2 -19.0 -17.2 1991 -17.8 -16.9 -18.0 -21.2 -22.5 -21.6 -20.0 -23.9 -24.6 -24.6 -20.7 -15.8 1992 -16.6 -17.8 -22.0 -22.7 -21.4 -22.8 -23.8 -25.7 -28.6 -23.9 -20.6 -20.5 1993 -14.2 -17.8 -21.3 -22.9 -28.8 -25.2 -25.7 -25.9 -26.2 -23.1 -22.3 -18.8 1994 -18.1 -18.1 -21.3 -23.9 -23.7 - -22.2 -25.3 -22.8 -23.4 -20.3 -18.7 1995 -17.8 -17.7 -20.3 -20.6 -23.4 -24.1 -21.0 -26.3 -25.8 -24.8 -19.5 -18.1 1996 -16.7 -17.3 -21.1 -22.3 -26.2 -22.9 -25.3 -22.2 -23.6 -23.4 -20.3 -17.5 1997 -17.9 -18.5 -19.9 -22.2 -23.5 -22.9 -25.7 -25.7 -27.5 -23.7 -20.6 -16.0 1998 -17.1 -17.2 -20.2 -25.2 -23.4 -23.3 -24.5 -24.0 -24.3 -24.5 -19.9 -18.6 1999 -17.8 -18.2 -20.1 -23.4 -23.6 -22.0 -26.5 -25.8 -25.4 -24.3 -21.2 -19.7 2000 -17.2 -19.1 -21.2 -20.4 -24.0 -21.5 -26.0 -25.3 -23.0 -27.4 -19.2 -17.1 2001 -16.5 -17.8 -19.4 -23.4 -23.0 -24.4 -23.7 -26.1 -26.4 -23.5 -21.2 -17.7 2002 -17.2 -18.5 -20.0 -20.9 -19.7 -23.7 -23.5 -25.3 -24.1 -22.3 -20.9 -17.6 2003 -14.9 -17.0 -20.2 -23.5 -23.3 -24.1 -23.0 -25.4 -23.4 -24.4 -19.9 -16.2 2004 -15.9 -15.0 -20.1 -22.3 -22.8 -24.9 - -26.4 -26.5 -22.5 -19.7 -16.0 2005 -17.5 -16.3 -19.0 -23.3 -22.7 -22.7 -25.2 -25.4 -24.8 -23.8 -21.4 -15.0 2006 -17.7 -19.0 -20.1 -21.4 -24.1 -24.1 -27.0 -23.6 -24.6 -22.8 -19.8 -18.5 2007 -15.9 -18.7 -22.2 -19.6 -20.9 -21.5 -23.5 -23.0 -25.9 -23.1 -18.6 -19.0 2008 -18.5 -18.6 -20.6 -21.1 -21.9 -26.2 -21.8 -27.1 -25.2 -25.4 -20.2 -17.0 2009 -15.7 -16.0 -19.4 -22.0 -21.6 -20.5 -22.5 -25.3 -23.4 -23.4 -20.0 -18.2 2010 -15.2 -16.9 -19.7 -22.5 -23.6 -24.5 -27.6 -26.5 -23.3 -24.7 -19.8 -18.7 2011 -15.0 -20.1 -19.9 -21.8 -23.5 -23.2 -21.5 -25.1 -24.2 -24.9 -17.7 -20.1 2012 -17.5 -17.2 -21.1 -21.4 -23.2 -24.0 -25.8 -25.0 -26.4 -22.4 -17.9 -16.1 2013 -15.0 -17.2 -21.8 -21.4 -24.4 -21.3 -24.5 -24.8 -21.1 -21.6 -18.0 -18.2 2014 -16.6 -18.7 -21.1 -24.6 -21.1 -25.3 -24.6 -25.4 -25.1 -23.3 -20.0 -18.8 2015 -17.4 -18.1 -18.3 - - - - - - -24.5 -20.9 -17.0 2016 -17.0 -18.7 -20.3 -22.0 -24.0 -26.0 -25.6 -22.7 -25.5 -22.5 -18.5 -17.3 2017 -16.8 -18.6 -21.7 -25.2 -21.9 -24.8 -22.5 -25.2 -26.5 -26.1 -18.1 -18.0 2018 -15.6 -17.0 -20.8 -19.6 -23.4 -22.0 -22.7 -21.8 -25.5 -24.4 -21.5 -18.1 2019 -16.4 -15.8 -20.1 -21.0 -23.4 -22.2 -23.8 -24.5 -25.7 -21.1 -18.2 -16.0 2020 -14.3 -17.9 -22.1 -21.6 -21.1 -21.4 -23.0 -22.9 -22.4 -22.3 -17.7 -17.5 2021 -16.5 -18.9 -20.1 -21.2 -24.3 -25.7 -24.0 -23.7 -24.2 -22.0 -20.8 -17.1 2022 -16.8 -18.6 -19.4 -21.9 -23.3 -20.7 -24.0 -23.1 -24.6 -22.0 -21.4 -18.3 2023 -17.6 -17.3 -17.4 -21.3 -23.3 -22.8 -24.4 -27.5 -22.7 -23.8 -21.8 -16.4 2024 -16.3 -18.4 -19.9 -22.5 - - - - - - - -