1991-2020 Degrees Fahrenheit 1 29.1 22.0 7.1 84 2 1983 2015 2005 2006 top-tenth 2 32.9 28.4 4.5 81 5 1985 2001 2005 2001 top-tenth 3 37.3 35.4 1.9 74 12 1985 2015 2005 2001 top-third 4 42.9 42.5 0.4 67 19 1985 2015 2003 2005 top-third 1948 5 48.7 48.3 0.4 69 17 1985 2015 2002 2005 top-third 2022 6 53.9 52.7 1.2 76 10 1951 2011 2005 2005 top-third 2005 7 56.3 55.1 1.2 75 11 1951,1985 2021 2004 2005 top-third 8 57.0 55.7 1.3 76 10 1945 2021 2005 2001 top-third 1987 9 56.6 54.7 1.9 77 9 1945 2021 2005 2001 top-tenth 10 54.3 52.6 1.7 77 8 1951 2021 2005 1998 top-tenth 11 51.2 49.7 1.5 77 8 1950,1951 2012 2005 2005 top-tenth 2005 12 49.3 46.9 2.4 79 6 1950 2012 2005 1998 top-tenth 18 50.8 48.8 2.0 81 4 1951 2012 2005 2006 top-tenth 24 48.8 46.9 1.9 79 5 1951 1999,2012,2017 2005 1999 top-tenth 36 48.0 46.9 1.1 77 6 1952 2012,2017 2005 2000 top-tenth 1999 48 47.6 46.9 0.7 76 6 1952 2018 2005 2001 top-tenth 2000 60 47.5 46.9 0.6 75 6 1951 2002 2005 2002 top-tenth 2013,2016,2021