1901-2000 Degrees Fahrenheit 1 52.1 58.3 -6.2 5 125 1915 2020 1926 1940 bottom-tenth 2 48.9 55.0 -6.1 1 129 1941,2010 2023 1941 1940 lowest 2010 3 48.9 53.0 -4.1 8 122 1978 2023 1940 1939 bottom-tenth 1905 4 49.9 52.3 -2.4 26 103 1978 2017 1940 1939 bottom-third 1904 5 51.2 53.2 -2.0 25 104 1977 2017 1940 1939 bottom-third 1901,1968 6 53.7 55.4 -1.7 26 103 1977 2017 1940 1939 bottom-third 1924 7 56.7 58.5 -1.8 21 108 1977 2017 1940 1939 bottom-third 1963 8 59.8 61.2 -1.4 21 108 1977 2017 1940 1939 bottom-third 1924,1963 9 61.9 63.4 -1.5 17 112 1977 2017 1940 1939 bottom-third 1896,1900,1914,1924 10 63.7 65.0 -1.3 18 111 1977 2017 1940 1939 bottom-third 1896,1914,1960,1966 11 64.3 65.7 -1.4 14 115 1977 2017 1940 1939 bottom-third 1905 12 64.2 65.7 -1.5 8 121 1977 2017 1940 1939 bottom-tenth 1899,1905,1924 18 60.2 62.3 -2.1 2 126 1978 2017 1941 1940 bottom-tenth 24 64.0 65.7 -1.7 3 125 1978 2017 1905 1940 bottom-tenth 36 64.9 65.7 -0.8 15 112 1970,1978,1979 2018 1906 1940 bottom-third 1965,1966 48 65.1 65.7 -0.6 19 107 1905,1980 2020 1907 1940 bottom-third 1903,1907,1963 60 65.5 65.7 -0.2 41 84 1981 2020 1919 1940 bottom-third 1912,1919,1960,1996,2014