1991-2020 Degrees Fahrenheit 1 50.9 53.2 -2.3 40 84 1919 1950 1925 1928 bottom-third 1915 2 56.2 60.2 -4.0 22 102 1912 2015 1925 1928 bottom-third 3 61.9 65.5 -3.6 25 99 1912 2015 1927 1928 bottom-third 4 65.2 69.0 -3.8 26 98 1912 2003 1927 1928 bottom-third 1918 5 65.9 69.8 -3.9 27 97 1912 2018 1928 1926 bottom-third 1951 6 64.4 68.5 -4.1 20 104 1912 2018 1927 1928 bottom-third 1909,1949 7 61.7 66.1 -4.4 15 109 1912 2018 1927 1928 bottom-third 1927 8 58.7 63.5 -4.8 9 115 1912 2012 1924 1928 bottom-tenth 1903,1924 9 54.4 60.3 -5.9 4 120 1917 2012,2018 1917 1928 bottom-tenth 10 50.6 57.1 -6.5 4 120 1917 2012,2018 1920 1928 bottom-tenth 11 47.8 54.4 -6.6 3 120 1917 2018 1920 1928 bottom-tenth 12 46.9 53.2 -6.3 4 119 1917 2018 1920 1928 bottom-tenth 18 52.9 58.3 -5.4 5 118 1917 2018 1920 1928 bottom-tenth 24 48.5 53.2 -4.7 13 109 1913,1917 2018 1925 1928 bottom-third 1903,1909,1912 36 48.8 53.2 -4.4 18 103 1917 2018 1925 1928 bottom-third 48 49.3 53.1 -3.8 28 92 1920 2018 1927 1928 bottom-third 1904,1911,1952 60 49.0 53.1 -4.1 16 103 1917 2018,2019,2021 1924 1928 bottom-third 1907,1922,1931