1901-2000 Degrees Fahrenheit 1 65.6 60.3 5.3 126 4 1907 2017 1895 1896 top-tenth 1981 2 57.0 56.2 0.8 79 51 1960 2012 1895 1896 normal 1990,2000 3 52.9 52.3 0.6 71 59 1958 2012 1895 1896 normal 1953 4 49.9 49.6 0.3 59 71 1978 2017 1895 1896 normal 1951 5 48.3 48.3 0.0 54 75 1978 2012,2017 1896 1896 normal 2015 6 48.8 48.7 0.1 53 76 1940 2017 1896 1896 normal 1930,1948,1955,1973,1988 7 49.5 50.5 -1.0 30 99 1977 2017 1896 1896 bottom-third 1979 8 52.9 53.3 -0.4 44 85 1977 2017 1896 1896 normal 1956,1966 9 55.7 56.1 -0.4 43 86 1977 2017 1896 1896 bottom-third 1944,2001 10 57.8 58.3 -0.5 36 93 1977 2017 1896 1896 bottom-third 1966,1998 11 59.4 59.9 -0.5 36 93 1977 2017 1896 1896 bottom-third 1924,1956,1982,1983 12 60.2 60.6 -0.4 37 92 1977 2017 1896 1896 bottom-third 1973 18 -99 56.7 -99 -99 -99 1977 2017 normal 24 -99 60.6 -99 -99 -99 1978 2017 normal 36 -99 60.6 -99 -99 -99 1970 2018 normal 48 -99 60.6 -99 -99 -99 1971 2020 normal 60 -99 60.6 -99 -99 -99 1971 2020 normal