1901-2000 Degrees Fahrenheit 1 76.3 75.9 0.4 74 55 1967 1925 1969 1970 normal 1919 2 77.5 78.1 -0.6 36 93 1967 1925 1969 1970 bottom-third 1937,1943,1965,1983,2003,2008 3 78.0 79.1 -1.1 22 107 1967 1925 1969 1970 bottom-third 1989 4 78.3 79.0 -0.7 32 97 1967 2010 1969 1970 bottom-third 1948 5 76.0 77.5 -1.5 6 123 1967 2010 1967 1970 bottom-tenth 1975 6 73.7 75.4 -1.7 8 121 1961 1896 1967 1970 bottom-tenth 7 70.6 72.7 -2.1 1 128 1961,1971 1925,2016 1961 1970 lowest 1961 8 67.7 69.9 -2.2 1 128 1971 2019 1971 1970 lowest 9 65.4 67.4 -2.0 6 123 1940 2019 1968 1970 bottom-tenth 1961,1979 10 64.0 65.5 -1.5 14 114 1940 1927,2019 1970 1965 bottom-third 1996,2001 11 62.7 64.5 -1.8 5 123 1940 2016 1970 1968 bottom-tenth 1964,1968 12 63.0 64.6 -1.6 8 120 1940 2017 1970 1967 bottom-tenth 1964,1978,1981,1996 18 67.2 68.2 -1.0 13 115 1977 2017 1970 1966 bottom-tenth 1964 24 62.9 64.6 -1.7 4 123 1969,1970 2017 1970 1968 bottom-tenth 1968 36 62.8 64.6 -1.8 2 124 1970 2018 1970 1969 bottom-tenth 1969 48 62.7 64.6 -1.9 1 124 1971 2019 1971 1970 lowest 60 62.8 64.6 -1.8 1 123 1971 2020 1971 1970 lowest