1991-2020 Degrees Fahrenheit 1 47.7 53.2 -5.5 13 111 1919 1950 1913 1915 bottom-third 2 55.0 60.2 -5.2 10 114 1912 2015 1913 1915 bottom-tenth 3 59.7 65.5 -5.8 3 121 1912 2015 1912 1915 bottom-tenth 1908 4 63.3 69.0 -5.7 2 122 1912 2003 1912 1915 bottom-tenth 1923 5 64.4 69.8 -5.4 5 119 1912 2018 1912 1915 bottom-tenth 1920 6 62.9 68.5 -5.6 3 121 1912 2018 1912 1915 bottom-tenth 1906 7 60.9 66.1 -5.2 6 118 1912 2018 1912 1915 bottom-tenth 8 58.6 63.5 -4.9 7 117 1912 2012 1912 1915 bottom-tenth 1941 9 55.3 60.3 -5.0 9 115 1917 2012,2018 1912 1915 bottom-tenth 10 51.6 57.1 -5.5 8 116 1917 2012,2018 1913 1915 bottom-tenth 1908 11 49.4 54.4 -5.0 11 112 1917 2018 1915 1915 bottom-tenth 1915,1932 12 48.2 53.2 -5.0 12 111 1917 2018 1913 1915 bottom-tenth 18 53.2 58.3 -5.1 7 116 1917 2018 1913 1915 bottom-tenth 1909 24 48.4 53.2 -4.8 12 110 1913,1917 2018 1914 1915 bottom-tenth 36 48.6 53.2 -4.6 12 109 1917 2018 1915 1912 bottom-tenth 1931 48 48.2 53.1 -4.9 6 114 1920 2018 1915 1914 bottom-tenth 60 47.9 53.1 -5.2 3 116 1917 2018,2019,2021 1916 1915 bottom-tenth