1901-2000 Degrees Fahrenheit 1 55.6 48.0 7.6 123 7 1895 2018 2016 1957 top-tenth 2 54.0 46.6 7.4 126 4 1978 1950 2016 1950 top-tenth 3 52.7 46.6 6.1 125 4 1978 1932 2016 1957 top-tenth 4 54.0 48.3 5.7 127 2 1977 1932 2016 1932 top-tenth 5 56.9 51.4 5.5 127 2 1977 1932 2016 1932 top-tenth 6 60.5 55.3 5.2 127 2 1977 1932 2016 1932 top-tenth 7 63.5 58.7 4.8 127 2 1977 1932 2016 1932 top-tenth 8 65.8 61.4 4.4 127 2 1977 1932 2016 1932 top-tenth 9 67.3 63.2 4.1 127 2 1977 1932 2016 1932 top-tenth 10 67.6 63.9 3.7 128 1 1977 2017 2016 2017 highest 11 67.2 63.8 3.4 128 1 1977 2017 2016 2017 highest 12 66.6 63.1 3.5 128 1 1977 2017 2016 2017 highest 18 63.8 60.5 3.3 127 1 1977 2017 2016 2017 highest 24 65.9 63.1 2.8 127 1 1978 2017 2016 2017 highest 36 64.6 63.1 1.5 122 5 1970 2018 2016 2017 top-tenth 2022,2023 48 63.9 63.1 0.8 111 15 1970 2019,2020 2016 2008 top-third 1909,1912,1929,1939,1950,1952,1957,2002,2008 60 64.0 63.1 0.9 116 9 1970 2020 2016 1934 top-tenth 1934