1901-2000 Degrees Fahrenheit 1 62.6 61.9 0.7 79 51 1901 2002 1966 1968 normal 1914,1921 2 55.4 57.9 -2.5 12 118 1915,1960 1945 1962 1968 bottom-tenth 1950 3 51.4 54.2 -2.8 10 120 1895 1945 1960 1968 bottom-tenth 1914 4 48.9 51.8 -2.9 10 120 1958 2017 1968 1967 bottom-tenth 5 47.5 50.6 -3.1 6 123 1958 2017 1958 1968 bottom-tenth 1936 6 48.2 51.0 -2.8 4 125 1902 2017 1958 1968 bottom-tenth 1958 7 50.4 52.7 -2.3 9 120 1902 2017 1958 1968 bottom-tenth 8 53.2 55.4 -2.2 8 121 1902,1977 2017 1968 1967 bottom-tenth 1964 9 56.2 58.0 -1.8 12 117 1977 2017 1968 1967 bottom-tenth 1905,1978 10 58.5 60.2 -1.7 9 120 1977 2017 1968 1967 bottom-tenth 1905,1940 11 60.1 61.7 -1.6 8 121 1977 2017 1968 1967 bottom-tenth 1905 12 60.8 62.4 -1.6 8 121 1977 2017 1968 1967 bottom-tenth 18 56.9 58.6 -1.7 6 122 1905 2017 1964 1968 bottom-tenth 24 60.3 62.4 -2.1 1 127 1969 2017 1969 1968 lowest 36 60.8 62.4 -1.6 2 125 1970 2018 1969 1968 bottom-tenth 48 61.0 62.4 -1.4 2 124 1970 2020 1969 1968 bottom-tenth 1971 60 61.2 62.4 -1.2 3 122 1970 2020 1968 1968 bottom-tenth 1968