1901-2000 Degrees Fahrenheit 1 62.7 61.3 1.4 95 35 1901 1896 1962 1963 top-third 1912 2 57.5 57.3 0.2 64 66 1926,1960 1908 1962 1963 normal 1965,1986 3 51.9 53.7 -1.8 26 104 1958 1927 1960 1963 bottom-third 1905,1914,2013 4 49.0 51.2 -2.2 20 110 1978 2017 1960 1963 bottom-third 1915,1926,1941 5 46.5 49.9 -3.4 4 125 1978 2017 1958 1963 bottom-tenth 1902,1958 6 47.3 50.3 -3.0 7 122 1902,1904,1977 2017 1940 1963 bottom-tenth 7 49.5 52.0 -2.5 8 121 1977 2017 1958 1963 bottom-tenth 8 52.3 54.7 -2.4 8 121 1977 2017 1958 1963 bottom-tenth 1970 9 55.1 57.2 -2.1 9 120 1977 2017 1958 1963 bottom-tenth 1940 10 57.3 59.3 -2.0 6 123 1977 2017 1958 1963 bottom-tenth 1958,1970 11 58.9 60.9 -2.0 5 124 1977 2017 1904 1963 bottom-tenth 1969 12 59.8 61.6 -1.8 6 123 1977 2017 1904 1963 bottom-tenth 1970 18 56.1 57.8 -1.7 8 120 1970 2017 1941 1963 bottom-tenth 24 60.5 61.6 -1.1 9 119 1978 2017 1959 1963 bottom-tenth 1959 36 60.6 61.5 -0.9 10 117 1970 2018,2019 1960 1963 bottom-tenth 1960,1980 48 60.6 61.5 -0.9 8 118 1971 2019,2020 1961 1963 bottom-tenth 1961,1968,1972 60 60.7 61.5 -0.8 10 115 1970,1971 2020 1962 1963 bottom-tenth 1905,1962,1973,1984