1901-2000 Degrees Fahrenheit 1 19.0 31.5 -12.5 2 128 1978 2017 1978 1977 bottom-tenth 1895 2 17.2 29.6 -12.4 1 129 1979 2017 1979 1978 lowest 3 22.4 30.3 -7.9 4 125 1978 1932 1978 1976 bottom-tenth 4 28.3 33.3 -5.0 9 120 1977 1932 1978 1976 bottom-tenth 1963 5 33.2 37.8 -4.6 6 123 1977 1932 1978 1976 bottom-tenth 1936 6 39.4 42.7 -3.3 9 120 1977 1932 1978 1976 bottom-tenth 1963,1970 7 44.3 47.2 -2.9 10 119 1977 1932 1978 1976 bottom-tenth 1968 8 48.3 50.9 -2.6 11 118 1977 1932 1978 1976 bottom-tenth 9 51.0 53.3 -2.3 12 117 1977 1932 1978 1976 bottom-tenth 1951,2015 10 52.0 54.3 -2.3 7 122 1977 1932 1977 1978 bottom-tenth 1982 11 52.2 54.1 -1.9 10 119 1918 1932 1977 1978 bottom-tenth 1929,2014 12 50.7 53.1 -2.4 4 125 1918 2017 1977 1978 bottom-tenth 18 46.5 49.6 -3.1 2 126 1905 2017 1905 1978 bottom-tenth 24 51.5 53.1 -1.6 6 122 1905 2013,2017 1978 1977 bottom-tenth 36 50.9 53.0 -2.1 1 126 1979 2013 1979 1978 lowest 48 51.5 53.0 -1.5 3 123 1980 2019 1905 1978 bottom-tenth 60 51.9 53.0 -1.1 6 119 1981 2020 1908 1978 bottom-tenth 1982