1901-2000 Degrees Fahrenheit 1 39.0 39.0 0.0 61 69 1905 2017 1994 2001 normal 1924 2 38.5 36.9 1.6 90 40 1905 2017 2001 2000 top-third 1991 3 39.1 36.8 2.3 100 29 1899,1905 2000 2001 2000 top-third 4 42.1 39.1 3.0 119 10 1899 2000 2001 2000 top-tenth 2022 5 45.3 43.0 2.3 114 15 1899 2017 2001 2000 top-third 6 49.4 47.5 1.9 113 16 1899 2017 2001 2000 top-third 7 53.6 51.8 1.8 113 16 1899 2017 2001 2000 top-third 1981 8 57.2 55.2 2.0 116 13 1899 1999,2017 2001 2000 top-tenth 2023 9 59.2 57.3 1.9 113 16 1899 1999,2017 2001 2000 top-third 2013 10 59.9 58.1 1.8 114 15 1899 1999 2001 2000 top-third 1955,2006 11 60.0 57.9 2.1 120 9 1899 1935,1999 2001 1999 top-tenth 2023 12 58.7 57.0 1.7 115 14 1899 2013,2017 2001 2000 top-third 2000 18 54.6 53.8 0.8 96 32 1913 2017 1998 2001 top-third 1928,1940,1981 24 58.0 57.0 1.0 104 24 1905 2013 2001 2000 top-third 1940,1965 36 58.2 57.0 1.2 111 16 1905 2013 1999 2001 top-third 2006 48 58.5 57.0 1.5 121 5 1906,1907,1962 2019 2001 1957 top-tenth 1957,2013 60 58.2 57.0 1.2 115 10 1962 2020 2001 1957 top-tenth 1938,2008,2015,2018,2023