1901-2000 Degrees Fahrenheit 1 17.6 29.4 -11.8 2 128 1978 2017 1978 1977 bottom-tenth 2 17.2 28.0 -10.8 2 128 1978 2017 1978 1977 bottom-tenth 3 22.1 28.8 -6.7 7 122 1978 1932 1978 1976 bottom-tenth 4 27.6 31.9 -4.3 11 118 1977 1932 1978 1976 bottom-tenth 5 32.3 36.3 -4.0 8 121 1977 1932 1978 1976 bottom-tenth 1963 6 38.4 41.2 -2.8 12 117 1977 1932 1978 1976 bottom-tenth 7 43.2 45.6 -2.4 12 117 1977 1932 1978 1976 bottom-tenth 1902,2014 8 47.0 49.3 -2.3 13 116 1977 1932 1978 1976 bottom-tenth 9 49.7 51.6 -1.9 14 115 1977 1932 1978 1976 bottom-third 10 50.6 52.6 -2.0 9 120 1918,1977 1932 1978 1978 bottom-tenth 1978 11 50.7 52.4 -1.7 10 119 1918 1932 1977 1978 bottom-tenth 1910,1929 12 49.2 51.3 -2.1 4 125 1918 2017 1977 1978 bottom-tenth 18 45.1 47.9 -2.8 3 125 1905 2017 1918 1978 bottom-tenth 24 49.9 51.3 -1.4 5 123 1905,1918 2017 1978 1977 bottom-tenth 1963,1980 36 49.3 51.3 -2.0 1 126 1979 2013,2018 1979 1978 lowest 48 49.9 51.3 -1.4 2 124 1980 2019 1905 1978 bottom-tenth 1905 60 50.3 51.3 -1.0 5 120 1981 2020 1908 1978 bottom-tenth 1905,1906