1901-2000 Degrees Fahrenheit 1 32.6 29.2 3.4 121 9 2008 2016 2018 2016 top-tenth 2 26.8 25.8 1.0 84 46 1917 1934 2013 2018 normal 1949 3 23.0 23.0 0.0 61 69 1933,1955 1934 2011 2018 normal 1970,2020 4 21.7 20.7 1.0 80 50 1922 1934 2013 2018 normal 1905,1927,1945 5 20.7 19.8 0.9 76 53 1949 1934 2017 2018 normal 1905,1927 6 21.0 20.3 0.7 67 62 1917 1934 2011 2018 normal 1901,1925 7 22.7 21.9 0.8 76 53 1917 1934 2011 2018 normal 1925,1970,2009,2011 8 24.9 24.2 0.7 78 51 1917 1934 2009 2018 normal 1919,1935,1958,1968,2006 9 27.6 26.8 0.8 82 47 1917 1934 2011 2018 normal 1914,1935,1968,1970 10 30.0 29.0 1.0 90 39 1917 2015 2011 2018 top-third 1902,2020 11 31.3 30.3 1.0 95 34 1917 1934 2011 2018 top-third 1921,1961,1980,1987 12 32.2 30.8 1.4 105 24 1917 2015,2016 2013 2018 top-third 1907 18 29.1 27.3 1.8 119 9 1917 2016 2014 2018 top-tenth 24 32.6 30.8 1.8 120 8 1917 2016 2014 2018 top-tenth 1941,1999 36 32.6 30.8 1.8 121 6 1933 2016,2017 2014 2018 top-tenth 48 33.0 30.8 2.2 122 4 1932,1933 2018 2015 2018 top-tenth 60 33.2 30.8 2.4 123 2 1933 2018 2017 2018 top-tenth