1991-2020 Degrees Fahrenheit 1 41.9 42.6 -0.7 63 60 1911 2001 1903 1902 normal 2 47.9 48.9 -1.0 49 74 1925 1963 1903 1902 normal 1908 3 53.8 55.0 -1.2 42 81 1976 1931 1903 1902 normal 2006 4 57.8 59.7 -1.9 19 104 1976 2016 1903 1902 bottom-third 1972 5 60.7 62.9 -2.2 11 112 1976 1931 1903 1902 bottom-tenth 6 62.0 64.6 -2.6 8 115 1917 1931 1903 1902 bottom-tenth 7 61.8 64.5 -2.7 6 117 1917 1934,2016 1903 1903 bottom-tenth 1903 8 59.8 63.2 -3.4 3 120 1917 2016 1904 1903 bottom-tenth 9 57.3 60.8 -3.5 2 121 1917 2016 1904 1903 bottom-tenth 10 53.8 57.9 -4.1 2 120 1917 2016 1904 1903 bottom-tenth 11 50.6 55.1 -4.5 1 121 1904 2012 1904 1903 lowest 12 48.3 53.2 -4.9 1 120 1904 2016 1904 1903 lowest 18 52.7 57.0 -4.3 1 120 1904 2016,2017 1904 1903 lowest 24 49.4 53.2 -3.8 2 117 1905 2017 1904 1903 bottom-tenth 36 49.7 53.1 -3.4 2 115 1905 2017,2018 1904 1904 bottom-tenth 48 -99 53.1 -99 -99 -99 1905 2018,2019 normal 60 -99 53.1 -99 -99 -99 1906 2020 normal