1991-2020 Degrees Fahrenheit 1 62.3 63.5 -1.2 34 42 1967 2004 1950 1949 normal 2 57.1 58.7 -1.6 23 53 1967 2019 1950 1949 bottom-third 3 51.9 53.6 -1.7 22 52 1950 2012 1950 1949 bottom-third 4 47.6 49.1 -1.5 29 45 1978 2012 1950 1949 normal 1962,1969,1975,1987,1994 5 44.9 46.0 -1.1 35 39 1978 2012 1950 1949 normal 1992 6 42.8 44.7 -1.9 27 46 1978 2012 1951 1950 normal 7 43.1 44.9 -1.8 24 48 1978 2012 1951 1950 bottom-third 1987 8 44.9 46.5 -1.6 25 47 1978 2012 1951 1950 normal 1964,1969,1987,2001 9 47.0 49.0 -2.0 19 53 1978 2012 1951 1950 bottom-third 1959,1994 10 49.6 51.7 -2.1 14 58 1978 2012 1951 1950 bottom-third 1964,1965,1988,2003 11 51.8 54.0 -2.2 9 63 1963 2012 1951 1950 bottom-third 1966 12 53.3 55.6 -2.3 7 65 1963,1978 2012 1951 1950 bottom-tenth 1982 18 50.0 51.9 -1.9 15 54 1979 2017 1951 1950 bottom-third 1977,2015 24 54.1 55.5 -1.4 21 47 1978 2017 1951 1950 bottom-third 1977 36 54.5 55.5 -1.0 29 35 1979 2022 1951 1951 normal 1973 48 -99 55.4 -99 -99 -99 1966,1980 2019,2020,2022 normal 60 -99 55.3 -99 -99 -99 1967,1970 2020 normal