1901-2000 Degrees Fahrenheit 1 35.2 29.4 5.8 111 19 1978 2017 2001 2000 top-third 1957 2 34.7 28.0 6.7 123 7 1978 2017 2001 1998 top-tenth 3 35.4 28.8 6.6 125 4 1978 1932 2001 1998 top-tenth 4 38.8 31.9 6.9 127 2 1977 1932 2001 1932 top-tenth 5 41.8 36.3 5.5 126 3 1977 1932 2001 1932 top-tenth 6 45.4 41.2 4.2 125 4 1977 1932 2001 1932 top-tenth 7 49.5 45.6 3.9 126 3 1977 1932 2001 1932 top-tenth 8 52.5 49.3 3.2 125 4 1977 1932 2001 1932 top-tenth 9 54.3 51.6 2.7 122 7 1977 1932 2001 1999 top-tenth 1999,2023 10 55.3 52.6 2.7 122 7 1918,1977 1932 2001 1999 top-tenth 1954,1992 11 55.4 52.4 3.0 126 3 1918 1932 2001 1932 top-tenth 12 53.9 51.3 2.6 121 8 1918 2017 2001 1999 top-tenth 2023 18 49.4 47.9 1.5 107 21 1905 2017 2001 2000 top-third 2007 24 52.6 51.3 1.3 108 20 1905,1918 2017 2001 2000 top-third 1935,2003,2007,2019,2021 36 52.8 51.3 1.5 116 11 1979 2013,2018 1999 2001 top-tenth 1932,1933,1934,1955,2007,2014,2020 48 53.1 51.3 1.8 121 5 1980 2019 2001 2002 top-tenth 60 52.9 51.3 1.6 121 4 1981 2020 2001 2002 top-tenth