1991-2020 Degrees Fahrenheit 1 51.9 50.0 1.9 79 18 1967 1934 2003 2000 top-third 2 50.3 47.2 3.1 94 3 1955 1934 2003 1934 top-tenth 3 46.5 44.1 2.4 92 5 1936 1934 2003 1992 top-tenth 4 41.9 41.8 0.1 69 28 1950 1934 2002 2003 top-third 1946,1987 5 40.5 40.2 0.3 69 27 1950 1934 2002 2003 top-third 2006 6 40.1 40.3 -0.2 66 30 1937 1934 2001 2003 top-third 1987 7 42.3 41.9 0.4 76 20 1949,1950 1934 2002 2003 top-third 1981 8 45.1 44.6 0.5 77 19 1949 1934 2002 2003 top-third 1988,1995 9 48.2 47.6 0.6 79 17 1949 1934,2015 2002 2003 top-third 1967 10 50.9 50.2 0.7 84 12 1949 2015 2002 2003 top-third 1998,2022 11 52.4 51.5 0.9 86 10 1949 2016 2003 2003 top-tenth 2003 12 52.8 52.0 0.8 85 11 1949 2016 2003 1999 top-third 18 49.3 48.1 1.2 91 4 1950 2016 2003 1999 top-tenth 2022 24 52.7 52.0 0.7 87 8 1950 2016 2003 2000 top-tenth 2000,2006 36 52.4 52.0 0.4 81 13 1957 2016 2003 2000 top-third 48 51.7 52.0 -0.3 71 22 1952,1957 2018 2003 2002 top-third 1942,1995,2002 60 51.8 52.0 -0.2 72 20 1933,1952 2018,2019 2001 2003 top-third 1991,1998