1901-2000 Degrees Fahrenheit 1 62.2 56.9 5.3 127 2 1895 1967 1989 1967 top-tenth 1998 2 64.0 60.2 3.8 124 5 1895 2022 1989 1967 top-tenth 3 65.0 61.5 3.5 123 6 1895 2022 1989 1967 top-tenth 4 63.1 60.6 2.5 118 11 1954 2021 1989 1967 top-tenth 5 60.6 58.8 1.8 112 17 1899,1964 1958 1989 1967 top-third 1938,2004,2020 6 58.6 56.5 2.1 118 11 1955 2015 1989 1987 top-tenth 1987,2004 7 56.1 54.0 2.1 118 11 1955 2015 1989 1987 top-tenth 1934,1987 8 53.1 51.4 1.7 114 15 1955 2015 1989 1987 top-third 1925 9 51.0 48.8 2.2 117 12 1916 2015 1989 1987 top-tenth 1987 10 49.3 47.0 2.3 117 11 1916 2015 1989 1967 top-tenth 1926,1967 11 48.4 46.0 2.4 118 10 1916,1917 2015 1989 1967 top-tenth 1967 12 48.3 46.1 2.2 118 10 1917 2015 1989 1958 top-tenth 18 51.3 49.6 1.7 116 12 1917 2015 1989 1958 top-tenth 2003,2018 24 47.5 46.1 1.4 108 19 1917 2016 1989 1988 top-third 1968,1998 36 47.4 46.1 1.3 109 17 1950 2016 1989 1968 top-third 1968,2020 48 47.6 46.1 1.5 116 9 1950,1951,1952 2016 1989 1941 top-tenth 1992,2007,2019,2022 60 47.1 46.1 1.0 103 21 1920,1952 2017 1989 1942 top-third 1941,1993,2002