CLAYTON, ALABAMA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 56.9 61.5 69.3 76.0 82.4 88.1 90.4 89.7 85.9 77.4 68.7 60.2 75.5
Highest Mean Max. Temperature (F) 69.7 68.6 75.9 80.7 89.0 95.7 97.3 95.7 92.0 83.2 75.4 69.8 97.3
Year Highest Occurred 1974 1976 1997 1999 2000 1998 2000 1990 1972 1984 1985 1984 2000
Lowest Mean Max. Temperature (F) 46.6 51.5 63.7 70.8 76.7 83.3 85.6 85.8 81.1 70.6 59.3 51.3 46.6
Year Lowest Occurred 1977 1978 1971 1973 1976 1997 1994 1992 1979 1976 1976 1989 1977
Mean Temperature (F) 46.1 49.5 56.8 63.1 70.6 76.9 79.7 79.0 74.7 65.1 56.5 49.0 63.9
Highest Mean Temperature (F) 60.2 56.4 62.2 67.9 74.3 81.9 83.1 83.2 79.3 71.8 64.1 58.2 83.2
Year Highest Occurred 1974 1990 1976 1991 1991 1998 1986 1990 1972 1985 1985 1971 1990
Lowest Mean Temperature (F) 36.1 40.5 50.8 57.3 66.7 72.2 77.3 76.9 70.5 59.6 48.8 40.7 36.1
Year Lowest Occurred 1977 1978 1983 1983 1971 1983 1994 1984 1983 1976 1976 1989 1977
Mean Min. Temperature (F) 35.3 37.4 44.3 50.1 58.7 65.7 68.9 68.3 63.4 52.7 44.2 37.8 52.2
Highest Mean Min. Temperature (F) 50.7 45.1 51.9 57.4 65.4 69.8 71.3 71.7 68.2 60.8 53.4 49.0 71.7
Year Highest Occurred 1974 1990 1973 1991 1991 1986 1986 1987 1973 1985 1986 1971 1987
Lowest Mean Min. Temperature (F) 23.9 29.4 36.3 42.6 51.9 59.0 66.0 64.7 57.2 46.3 35.5 28.7 23.9
Year Lowest Occurred 1985 1978 1999 1983 1983 1983 1985 1997 1983 1987 1995 2000 1985
Mean Precipitation (in.) 4.91 5.05 6.56 3.77 3.85 4.75 5.27 4.01 3.76 2.68 3.93 4.36 52.90
Highest Precipitation (in.) 10.92 16.12 16.68 8.59 8.45 13.40 21.90 7.64 11.70 9.03 11.41 12.18 21.90
Year Highest Occurred 1991 1995 1990 1979 1978 1989 1994 1971 1996 1975 1992 1972 1994
Lowest Precipitation (in.) 1.00 1.09 2.07 0.40 0.10 1.01 1.14 0.35 0.21 0.00 1.20 0.92 0.00
Year Lowest Occurred 1981 1980 1985 1987 2000 1984 1972 1990 1978 1982 1990 1980 1982
Heating Degree Days (F) 600. 436. 280. 114. 17. 0. 0. 0. 5. 103. 281. 504. 2340.
Cooling Degree Days (F) 0. 1. 26. 55. 190. 358. 454. 434. 296. 106. 25. 7. 1952.

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