1991-2020 Degrees Fahrenheit 1 33.6 40.0 -6.4 13 72 1989 2015 1942 1941 bottom-third 2 39.2 44.6 -5.4 11 74 1989 2015 1942 1941 bottom-third 3 44.7 49.6 -4.9 8 77 1976,1980 2015 1943 1942 bottom-tenth 4 50.3 54.9 -4.6 4 80 1976 2015 1943 1942 bottom-tenth 1958,1989 5 55.3 59.4 -4.1 5 79 1962 2015 1940 1942 bottom-tenth 1958,1989 6 58.8 62.7 -3.9 6 78 1962 2015 1940 1942 bottom-tenth 7 61.3 64.2 -2.9 16 68 1962 2015 1942 1941 bottom-third 1960,2000 8 61.4 64.2 -2.8 16 68 1958 2015 1942 1941 bottom-third 9 59.7 63.0 -3.3 7 77 1940 2015 1940 1942 bottom-tenth 1947 10 57.7 61.0 -3.3 7 77 1940 2012 1940 1942 bottom-tenth 11 55.5 58.8 -3.3 9 75 1940 2012 1940 1942 bottom-third 12 53.4 56.7 -3.3 5 79 1940 2012 1940 1942 bottom-tenth 1947,1950,1967 18 55.3 58.7 -3.4 2 81 1963 2016 1943 1942 bottom-tenth 24 53.5 56.7 -3.2 3 80 1941 2021 1941 1942 bottom-tenth 1948 36 53.8 56.7 -2.9 7 75 1942 2012 1942 1943 bottom-tenth 1962,1980 48 53.2 56.6 -3.4 1 80 1943 2013 1943 1943 lowest 60 -99 56.6 -99 -99 -99 1944 2020 normal