BANKHEAD LOCK AND DAM, ALABAMA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 53.3 58.4 66.8 74.6 81.7 88.7 91.6 91.4 86.1 76.2 65.9 56.6 74.3
Highest Mean Max. Temperature (F) 62.7 67.0 72.7 80.0 86.6 93.0 96.2 96.2 92.1 82.7 71.9 65.9 96.2
Year Highest Occurred 1974 1976 1997 1981 1987 1988 1980 1999 1990 1973 1978 1984 1999
Lowest Mean Max. Temperature (F) 41.4 46.3 59.3 66.9 75.2 83.6 86.2 86.1 79.5 70.5 57.4 44.2 41.4
Year Lowest Occurred 1978 1978 1983 1983 1976 1974 1989 1992 1974 1977 1976 1989 1978
Mean Temperature (F) 40.9 44.8 52.3 59.0 67.3 74.9 78.5 77.8 72.2 60.9 51.4 43.8 60.3
Highest Mean Temperature (F) 50.7 52.5 57.9 64.5 72.3 78.9 82.2 82.2 76.6 66.9 58.1 52.1 82.2
Year Highest Occurred 1974 1990 1974 1981 1987 1981 1980 2000 1980 1984 1985 1984 1980
Lowest Mean Temperature (F) 31.1 34.3 46.8 52.3 60.3 71.4 74.4 73.3 67.6 56.0 42.7 33.0 31.1
Year Lowest Occurred 1977 1978 1971 1983 1976 1972 1972 1976 1982 1977 1976 1989 1977
Mean Min. Temperature (F) 28.5 31.1 37.8 43.3 52.9 61.0 65.3 64.1 58.3 45.6 36.9 30.9 46.3
Highest Mean Min. Temperature (F) 38.8 40.2 43.5 49.3 58.0 65.9 68.2 69.3 62.2 53.4 44.8 39.2 69.3
Year Highest Occurred 1974 1990 1974 1991 1991 1981 1980 2000 1973 1984 1985 1971 2000
Lowest Mean Min. Temperature (F) 19.4 22.3 32.5 37.8 45.5 57.1 60.3 57.0 52.5 38.1 27.9 21.8 19.4
Year Lowest Occurred 1977 1978 1971 1983 1976 1972 1976 1976 1981 1987 1976 1989 1977
Mean Precipitation (in.) 6.52 5.08 6.76 5.07 4.94 4.57 5.65 3.68 3.70 4.02 5.05 5.46 60.50
Highest Precipitation (in.) 10.97 10.89 16.57 14.35 12.21 9.99 16.13 9.01 10.53 9.82 10.54 19.04 19.04
Year Highest Occurred 1996 1990 1976 1979 1991 1989 1996 1992 1988 1983 2000 1983 1983
Lowest Precipitation (in.) 1.35 1.09 1.55 0.81 0.70 1.55 0.51 0.52 0.52 0.00 1.06 0.87 0.00
Year Lowest Occurred 1981 2000 1985 1986 2000 1988 1983 1999 1984 2000 1981 1980 2000
Heating Degree Days (F) 747. 567. 401. 200. 62. 1. 0. 0. 11. 176. 413. 658. 3236.
Cooling Degree Days (F) 0. 0. 8. 19. 132. 298. 417. 394. 228. 49. 5. 0. 1550.

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