1991-2020 Degrees Fahrenheit 1 61.7 63.5 -1.8 25 42 1976 1965 1980 1985 normal 2 66.8 69.1 -2.3 9 58 1976 2016 1976 1985 bottom-third 3 72.5 73.9 -1.4 15 52 1976 2021 1984 1985 bottom-third 2000 4 76.4 77.9 -1.5 14 53 1976 2015 1978 1985 bottom-third 1953,1968,1990 5 78.8 80.2 -1.4 13 54 1976 2015 1976 1985 bottom-third 1969,2003 6 79.7 81.5 -1.8 10 57 1976 2011 1976 1985 bottom-third 7 79.8 81.5 -1.7 12 55 1976 1998 1976 1985 bottom-third 8 79.6 80.7 -1.1 20 46 1976 2011 1981 1985 bottom-third 1952 9 78.5 79.3 -0.8 24 42 1976 2011 1983 1985 normal 1995,2010,2013,2014 10 77.0 77.4 -0.4 40 25 1976 2011 1985 1980 normal 1991,1995,2005 11 75.1 75.4 -0.3 43 22 1970 2011 1985 1980 normal 1995,2008,2019 12 73.2 73.8 -0.6 34 31 1970,1976,1987 2011 1985 1980 normal 1989 18 75.8 76.3 -0.5 37 28 1976 2012,2022 1985 1980 normal 2005 24 73.1 73.7 -0.6 34 29 1976 2012 1985 1981 normal 1981 36 72.8 73.7 -0.9 25 36 1970 2000 1985 1982 normal 48 72.7 73.7 -1.0 22 37 1971 2001 1985 1985 normal 1985,1993 60 72.8 73.6 -0.8 24 33 1970 2002 1985 1984 normal 1984,1993