1901-2000 Degrees Fahrenheit 1 72.9 74.5 -1.6 28 101 1967 1925 1967 1966 bottom-third 1985 2 76.5 76.8 -0.3 47 82 1967 1925 1967 1965 normal 1916,1924,1929,1965 3 77.3 77.7 -0.4 38 91 1967 1925 1967 1962 bottom-third 1929,2009 4 77.2 77.7 -0.5 35 94 1967 1925 1967 1962 bottom-third 1903,1910,1938,1948,1955,1971,1983 5 75.5 76.3 -0.8 20 109 1967 2010 1967 1965 bottom-third 1969 6 73.7 74.1 -0.4 37 92 1961 1925 1967 1965 bottom-third 1920,1985,1988,1996,2001 7 70.8 71.4 -0.6 24 105 1960,1966,1971 1925 1967 1965 bottom-third 1937,1979,1997,2001 8 67.1 68.6 -1.5 6 123 1947,1960 2019 1966 1967 bottom-tenth 1901,1971 9 64.4 66.1 -1.7 4 125 1940 2019 1966 1967 bottom-tenth 1969,1978 10 63.1 64.2 -1.1 14 114 1940 2016 1967 1967 bottom-third 1918,1967,1970 11 62.1 63.3 -1.2 15 113 1940 2016 1966 1967 bottom-third 1902,1971,1996 12 62.0 63.4 -1.4 10 118 1940 2016,2017 1966 1967 bottom-tenth 18 65.4 67.0 -1.6 2 126 1977 2017 1968 1967 bottom-tenth 24 62.2 63.4 -1.2 6 121 1969,1978 2017 1967 1966 bottom-tenth 36 62.1 63.4 -1.3 3 123 1969,1970 2018 1968 1967 bottom-tenth 1971,1979 48 62.4 63.3 -0.9 7 118 1969 2019 1967 1965 bottom-tenth 1961 60 62.3 63.3 -1.0 4 120 1970 2020 1967 1967 bottom-tenth 1967