1901-2000 Degrees Fahrenheit 1 60.1 62.0 -1.9 26 104 1983 1896 1975 1979 bottom-third 2 56.1 58.2 -2.1 19 111 1960 1908 1971 1979 bottom-third 1914,1959 3 51.6 54.6 -3.0 13 117 1958 1927 1978 1979 bottom-tenth 1902 4 50.1 52.0 -1.9 29 101 1978 2017 1979 1976 bottom-third 5 49.1 50.8 -1.7 31 98 1978 1927 1979 1976 bottom-third 6 49.6 51.1 -1.5 27 102 1977 1932 1978 1979 bottom-third 1901,1961 7 51.2 52.8 -1.6 19 110 1977 1932,2017 1978 1979 bottom-third 1904,1960 8 53.8 55.4 -1.6 15 114 1977 1932,2017 1978 1979 bottom-third 1918,1931,2014 9 56.4 58.0 -1.6 14 115 1977 2017 1978 1979 bottom-third 1918,1984,1996 10 58.6 60.1 -1.5 13 116 1977 2017 1978 1979 bottom-tenth 1918,1951 11 60.0 61.6 -1.6 10 119 1977 2017 1978 1979 bottom-tenth 1984 12 60.7 62.3 -1.6 7 122 1977 2017 1977 1979 bottom-tenth 1918,1958,1984,2014 18 57.3 58.5 -1.2 13 115 1977 2017 1979 1979 bottom-tenth 1959,1962,1979 24 61.4 62.3 -0.9 17 111 1978 2017 1979 1979 bottom-third 1963,1967,1976,1979,2014,2015 36 61.2 62.3 -1.1 10 117 1970 2021 1979 1976 bottom-tenth 1965 48 60.5 62.3 -1.8 3 123 1971 2020 1971 1979 bottom-tenth 60 60.8 62.3 -1.5 3 122 1970,1971 2020 1979 1979 bottom-tenth 1968,1969,1972,1979,1981