1991-2020 Degrees Fahrenheit 1 62.2 64.4 -2.2 35 66 1935 1961 1926 1925 normal 2 62.8 68.1 -5.3 1 100 1927 2018 1927 1926 lowest 3 65.3 69.9 -4.6 1 100 1927 2018 1927 1926 lowest 4 64.1 69.7 -5.6 1 100 1927 2018 1927 1926 lowest 5 62.2 67.8 -5.6 1 100 1927 2018 1927 1926 lowest 6 59.3 64.8 -5.5 1 100 1927 2019 1927 1926 lowest 7 56.4 61.1 -4.7 2 99 1940 2012 1926 1926 bottom-tenth 1924,1926 8 53.4 57.2 -3.8 7 94 1924,1940 2012 1926 1925 bottom-tenth 1928,1978 9 50.2 54.0 -3.8 5 94 1940 2012 1926 1925 bottom-tenth 1935 10 47.6 51.9 -4.3 2 97 1940 2012 1926 1926 bottom-tenth 1926,1978 11 -99 51.0 -99 -99 -99 1940 2012 normal 12 -99 51.2 -99 -99 -99 1926,1940 2012 normal 18 -99 55.7 -99 -99 -99 1926 2012 normal 24 -99 51.1 -99 -99 -99 1926,1935 2017,2021 normal 36 -99 51.0 -99 -99 -99 1979 2022 normal 48 -99 51.0 -99 -99 -99 1964,1970 2022 normal 60 -99 50.9 -99 -99 -99 1971 2020 normal