MUSCLE SHOALS FAA ARPT, ALABAMA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 48.3 53.7 63.4 72.9 80.2 87.6 90.3 89.5 83.7 73.6 62.5 52.4 71.5
Highest Mean Max. Temperature (F) 57.3 63.4 70.2 79.8 90.0 92.0 96.6 96.4 89.4 84.3 69.5 61.2 74.6
Year Highest Occurred 1990 1976 1967 1967 1962 1988 1980 1980 1990 1963 1978 1984 1990
Lowest Mean Max. Temperature (F) 35.3 42.4 54.9 65.8 74.1 81.6 85.7 83.4 76.7 65.9 53.0 43.0 68.4
Year Lowest Occurred 1977 1978 1965 1982 1976 1974 1967 1967 1974 1976 1976 1989 1979
Mean Temperature (F) 38.7 43.2 52.2 61.0 68.7 76.3 79.7 78.6 72.7 61.2 51.5 42.8 60.6
Highest Mean Temperature (F) 48.4 52.1 57.4 67.4 75.4 79.5 85.5 83.9 77.6 68.8 58.3 51.9 63.0
Year Highest Occurred 1974 1990 1974 1967 1962 1964 1980 1980 1978 1984 1978 1984 1990
Lowest Mean Temperature (F) 27.0 33.2 44.3 56.2 62.9 70.8 75.6 74.1 66.6 54.9 41.9 33.4 58.0
Year Lowest Occurred 1977 1978 1969 1983 1976 1974 1967 1967 1974 1976 1976 1989 1976
Mean Min. Temperature (F) 29.0 32.7 41.0 49.1 57.1 65.0 69.0 67.7 61.7 48.7 40.6 33.1 49.6
Highest Mean Min. Temperature (F) 40.0 41.6 46.4 55.0 61.9 68.1 74.3 71.9 67.0 58.5 48.3 42.5 51.2
Year Highest Occurred 1974 1990 1973 1967 1987 1981 1980 1983 1970 1984 1985 1984 1990
Lowest Mean Min. Temperature (F) 18.6 24.0 33.1 44.1 51.5 59.7 65.5 64.1 56.5 41.4 30.7 23.8 46.6
Year Lowest Occurred 1977 1978 1969 1961 1971 1961 1967 1976 1974 1987 1976 1989 1976
Mean Precipitation (in.) 4.48 4.45 5.90 4.41 5.10 4.07 4.58 3.29 4.08 3.20 4.52 5.77 53.85
Highest Precipitation (in.) 11.77 10.72 14.25 12.81 11.86 13.43 14.40 7.17 10.13 8.25 11.06 19.19 78.78
Year Highest Occurred 1974 1990 1980 1983 1983 1989 1975 1967 1979 1984 1986 1990 1975
Lowest Precipitation (in.) 0.60 0.51 1.35 0.36 1.18 1.03 0.92 0.15 0.07 0.00 1.09 0.65 39.18
Year Lowest Occurred 1986 1978 1967 1986 1987 1988 1977 1990 1961 1963 1965 1980 1987
Heating Degree Days (F) 815. 610. 408. 162. 44. 0. 0. 0. 15. 171. 412. 688. 3325.
Cooling Degree Days (F) 0. 0. 11. 42. 159. 339. 456. 422. 246. 54. 7. 0. 1736.

Southeast Regional Climate Center, sercc@climate.ncsu.edu