1901-2000 Degrees Fahrenheit 1 26.9 29.6 -2.7 33 97 1918 2023 2004 2008 bottom-third 1902 2 31.8 31.3 0.5 66 63 1918 1932,2016 2004 2008 normal 3 35.7 35.2 0.5 67 62 1918 2016 2003 2008 normal 1988 4 40.2 40.0 0.2 58 71 1918 1932 2003 2008 normal 1903,1916,1955 5 45.6 45.0 0.6 75 54 1918 1932 2003 2008 normal 1919,1967,2011 6 49.9 49.4 0.5 71 58 1918 2016 2001 2008 normal 7 53.6 52.9 0.7 78 51 1918 2016 2001 2008 normal 1971 8 56.0 54.8 1.2 98 31 1918 2016 2005 2008 top-third 1937,2005,2015 9 56.2 55.4 0.8 87 42 1918 2016 2004 2008 top-third 1958,1980,1985,1989,1998,2003 10 55.9 54.8 1.1 95 34 1918 2016 2004 2008 top-third 1953,1954,2014 11 54.6 53.3 1.3 99 30 1918 2012 2004 2008 top-third 1937,1949,1954 12 53.0 51.4 1.6 101 28 1918 2013 2004 2008 top-third 1947,1954 18 52.9 50.8 2.1 108 20 1905 2017 2005 2008 top-third 24 53.2 51.4 1.8 108 20 1918 2013 2005 2008 top-third 2002 36 53.7 51.4 2.3 113 14 1918 2013 2006 2008 top-third 48 53.8 51.4 2.4 114 12 1918 2023 2007 2008 top-tenth 60 53.8 51.4 2.4 113 12 1908 2023 2008 2009 top-tenth