1991-2020 Degrees Fahrenheit 1 -2.7 5.4 -8.1 27 68 1912 2006 1950 1949 bottom-third 2 -1.2 8.6 -9.8 11 80 1918 2006 1950 1949 bottom-third 3 5.0 14.6 -9.6 6 83 1920 2002 1920 1950 bottom-tenth 4 14.6 21.4 -6.8 8 80 1920 2016 1920 1950 bottom-tenth 1912 5 22.3 28.0 -5.7 9 77 1920 2016 1950 1949 bottom-tenth 1959 6 28.1 33.9 -5.8 4 81 1920 2016 1920 1950 bottom-tenth 7 32.6 38.4 -5.8 2 83 1920 2016 1920 1950 bottom-tenth 1952 8 35.8 41.2 -5.4 1 82 1951,1952 2002,2016 1951 1950 lowest 1952 9 37.0 42.4 -5.4 1 82 1951 2002 1951 1950 lowest 10 36.2 42.0 -5.8 1 82 1951 2002 1951 1950 lowest 11 34.1 40.4 -6.3 1 80 1951 2002 1951 1950 lowest 12 31.7 37.9 -6.2 1 80 1951 1999 1951 1950 lowest 18 31.0 36.5 -5.5 1 78 1951 2017 1951 1950 lowest 24 32.9 37.9 -5.0 2 74 1952 2000 1951 1950 bottom-tenth 36 33.8 37.8 -4.0 2 69 1952 2001 1951 1923 bottom-tenth 48 -99 37.8 -99 -99 -99 1952 2002 normal 60 -99 37.7 -99 -99 -99 1953 2002 normal