1991-2020 Degrees Fahrenheit 1 51.7 52.8 -1.1 49 51 1925 2007 1960 1961 normal 2 55.2 58.6 -3.4 16 84 1940 2007 1940 1961 bottom-third 3 59.7 63.0 -3.3 13 87 1940 2021 1940 1961 bottom-third 1972 4 62.2 65.7 -3.5 5 95 1940 2021 1956 1961 bottom-tenth 1924,1956 5 63.5 66.3 -2.8 13 87 1940 2021 1956 1961 bottom-third 1929 6 63.1 65.3 -2.2 23 77 1927 2018 1960 1961 bottom-third 1938,1960,1996 7 61.0 63.1 -2.1 27 73 1940 2019 1958 1961 bottom-third 1937,1946,1981 8 58.1 60.0 -1.9 33 67 1940 2012,2021 1960 1961 bottom-third 1929,1966 9 54.4 56.8 -2.4 22 78 1940 2012 1958 1961 bottom-third 1932,1936,1948,1964,1996 10 51.4 53.9 -2.5 20 78 1940 2012 1958 1961 bottom-third 1950,1996 11 49.3 52.0 -2.7 21 77 1940 2012 1961 1960 bottom-third 1958,1981 12 48.8 51.2 -2.4 25 71 1940 2012 1961 1959 bottom-third 1968,1971 18 54.1 55.8 -1.7 38 57 1940 2012 1961 1959 normal 1933,1947,1959,1969,1994,2001 24 48.6 51.1 -2.5 13 78 1935 2017 1948 1959 bottom-third 1948,1970,1997 36 -99 51.1 -99 -99 -99 1979 2021 normal 48 -99 51.0 -99 -99 -99 1943,1964,1979 2019,2021,2022 normal 60 -99 50.9 -99 -99 -99 1965,1967,1982 2020 normal