1901-2000 Degrees Fahrenheit 1 28.6 29.0 -0.4 52 77 1985 1999 2014 2017 normal 1928 2 34.8 35.8 -1.0 41 88 1919 1999 2009 2017 bottom-third 1931,1938 3 42.3 41.7 0.6 74 55 1985 1963 2009 2017 normal 1907,1922,1938 4 47.6 47.1 0.5 77 52 1985 1963 2009 2017 normal 1917,1947 5 51.5 50.7 0.8 85 44 1993 2021 2009 2017 normal 1917,1931 6 53.0 51.9 1.1 94 35 1993 2021 2014 2017 top-third 1909,1943,1960 7 53.0 51.4 1.6 109 20 1993 2021 2014 2017 top-third 1953,1994,2022 8 51.3 49.8 1.5 105 24 1912 2012 2014 2017 top-third 1933,1977 9 49.2 47.5 1.7 110 19 1912 2012 2014 2017 top-third 1936,1987,1990 10 46.2 45.0 1.2 101 28 1912 2012 2014 2017 top-third 2004,2013 11 44.3 42.6 1.7 104 25 1912,1929 2012 2014 2017 top-third 12 42.6 40.8 1.8 105 23 1917 1934 2017 2017 top-third 2017 18 46.3 44.5 1.8 112 16 1917 1934 2014 2017 top-third 2003 24 42.6 40.8 1.8 107 20 1917 2016 2014 2017 top-third 36 43.2 40.7 2.5 122 4 1917 2017 2015 2017 top-tenth 48 43.5 40.7 2.8 124 1 1918 2018 2017 2018 highest 60 43.1 40.7 2.4 122 2 1916,1917,1920 2016 2017 2016 top-tenth 2007