ALPHARETTA 5 SSW, GEORGIA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 49.0 53.8 62.8 71.5 78.2 84.6 87.3 86.7 81.2 71.8 62.6 53.0 70.2
Highest Mean Max. Temperature (F) 60.2 65.3 68.7 76.4 87.7 88.5 93.8 91.1 86.6 76.9 68.5 62.3 75.0
Year Highest Occurred 1990 1990 1976 1981 1962 1990 1986 1990 1970 1984 1985 1984 1990
Lowest Mean Max. Temperature (F) 37.9 45.9 56.3 65.3 73.3 80.7 83.1 82.9 76.9 67.3 55.3 43.9 68.3
Year Lowest Occurred 1977 1978 1969 1983 1976 1983 1967 1981 1979 1976 1976 1963 1979
Mean Temperature (F) 38.0 41.6 49.7 57.8 65.6 72.7 76.2 75.7 69.9 58.7 50.0 41.7 58.1
Highest Mean Temperature (F) 50.0 53.0 56.3 63.2 73.1 76.5 81.2 79.7 74.4 64.7 58.4 49.6 62.8
Year Highest Occurred 1974 1990 1990 1981 1962 1981 1986 1990 1980 1984 1985 1984 1990
Lowest Mean Temperature (F) 27.3 34.2 42.1 52.4 61.2 68.4 72.0 71.5 64.1 53.8 42.5 33.5 55.8
Year Lowest Occurred 1977 1978 1969 1983 1973 1974 1967 1967 1967 1987 1976 1963 1968
Mean Min. Temperature (F) 27.0 29.4 36.4 44.2 53.0 60.9 65.1 64.6 58.6 45.6 37.3 30.3 46.0
Highest Mean Min. Temperature (F) 41.2 40.7 43.9 50.0 58.4 65.6 69.5 68.3 63.5 53.3 48.3 37.8 50.6
Year Highest Occurred 1974 1990 1990 1981 1987 1981 1989 1990 1988 1985 1985 1982 1990
Lowest Mean Min. Temperature (F) 16.6 21.7 27.8 39.0 47.3 55.5 60.8 59.8 51.2 37.7 29.6 23.1 42.6
Year Lowest Occurred 1977 1968 1969 1971 1973 1974 1967 1967 1967 1987 1976 1963 1968
Mean Precipitation (in.) 5.23 4.89 5.97 4.61 4.68 3.67 4.82 4.12 3.61 3.52 3.80 4.84 53.76
Highest Precipitation (in.) 11.02 13.13 13.86 11.02 9.03 7.82 10.85 7.88 9.03 8.33 7.18 14.72 72.60
Year Highest Occurred 1972 1961 1980 1979 1976 1963 1967 1967 1989 1977 1983 1961 1964
Lowest Precipitation (in.) 0.81 0.93 1.10 0.76 0.47 0.51 0.91 1.12 0.02 0.00 1.69 0.76 40.69
Year Lowest Occurred 1981 1978 1985 1986 1962 1990 1980 1963 1984 1963 1980 1980 1988
Heating Degree Days (F) 837. 655. 480. 229. 83. 6. 0. 0. 21. 217. 455. 722. 3705.
Cooling Degree Days (F) 0. 0. 5. 13. 102. 237. 347. 332. 168. 22. 5. 0. 1231.

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