DEMOPOLIS 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) 55.4 60.1 68.5 75.6 82.7 88.9 91.5 91.1 86.2 77.0 67.0 58.4 75.2
Highest Mean Max. Temperature (F) 64.5 68.1 74.4 81.5 87.4 94.2 95.9 96.1 93.0 81.3 73.9 67.5 96.1
Year Highest Occurred 1974 1976 1997 1999 1996 1977 1986 2000 1980 1984 1978 1984 2000
Lowest Mean Max. Temperature (F) 44.4 50.6 62.4 70.8 75.9 84.3 86.0 86.3 80.3 72.4 59.0 48.2 44.4
Year Lowest Occurred 1977 1978 1971 1983 1976 1983 1996 1996 1974 1976 1976 2000 1977
Mean Temperature (F) 44.3 48.2 55.8 62.6 70.6 77.2 80.4 79.8 74.6 63.6 54.2 46.8 63.2
Highest Mean Temperature (F) 55.1 55.8 61.7 69.2 75.1 82.4 83.4 82.9 80.2 69.4 60.5 56.5 83.4
Year Highest Occurred 1974 1990 1997 1999 2000 1998 1980 2000 1980 1984 1978 1971 1980
Lowest Mean Temperature (F) 33.8 38.8 50.5 58.3 65.5 73.2 75.4 75.7 69.4 57.6 46.5 38.6 33.8
Year Lowest Occurred 1977 1978 1996 1983 1976 1974 1996 1996 1996 1987 1976 2000 1977
Mean Min. Temperature (F) 33.2 36.2 43.0 49.5 58.4 65.5 69.2 68.4 63.0 50.1 41.3 35.2 51.1
Highest Mean Min. Temperature (F) 45.7 45.3 51.1 57.1 66.1 70.7 73.0 71.6 70.1 57.4 47.4 46.8 73.0
Year Highest Occurred 1974 1990 1973 1991 1991 1998 1999 1999 1998 1984 1994 1971 1999
Lowest Mean Min. Temperature (F) 23.2 26.9 36.0 43.7 51.4 60.7 64.0 65.0 57.6 40.3 33.9 26.3 23.2
Year Lowest Occurred 1977 1978 1996 1996 1988 1995 1987 1996 1996 1987 1976 1985 1977
Mean Precipitation (in.) 6.20 4.85 6.44 4.92 4.60 3.63 4.98 3.51 3.79 3.47 4.71 4.64 55.74
Highest Precipitation (in.) 13.05 9.99 13.95 10.56 12.99 11.40 10.37 8.24 8.81 11.32 11.06 7.56 13.95
Year Highest Occurred 1972 1990 1976 1983 1991 1989 1988 1984 1974 1984 1986 1983 1976
Lowest Precipitation (in.) 1.49 1.50 1.88 0.34 0.96 0.00 0.85 1.01 0.54 0.05 0.30 0.83 0.00
Year Lowest Occurred 1981 2000 1986 1987 1996 1988 1983 2000 1984 1987 1981 1980 1988
Heating Degree Days (F) 648. 472. 304. 122. 22. 0. 0. 0. 9. 128. 336. 572. 2613.
Cooling Degree Days (F) 0. 0. 17. 49. 193. 366. 476. 456. 297. 83. 10. 7. 1954.

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