JACKSON EXP STN, TENNESSEE

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 46.0 51.5 61.0 70.5 78.0 85.8 89.4 88.7 82.9 72.8 60.5 50.3 69.8
Highest Mean Max. Temperature (F) 54.3 60.8 66.1 76.5 84.6 90.3 94.1 95.1 89.3 79.3 67.7 59.9 95.1
Year Highest Occurred 1989 1976 1977 1981 1987 1988 1980 1983 1998 1971 1999 1984 1983
Lowest Mean Max. Temperature (F) 33.0 37.4 54.7 62.7 71.8 80.4 86.0 83.7 75.7 66.6 51.6 39.4 33.0
Year Lowest Occurred 1977 1978 1978 1983 1976 1997 1979 1992 1974 1976 1976 1983 1977
Mean Temperature (F) 37.1 41.6 50.8 59.4 67.8 75.7 79.6 78.3 71.8 60.5 50.0 40.9 59.5
Highest Mean Temperature (F) 44.9 49.5 56.5 65.1 73.8 79.5 83.2 82.9 77.1 66.9 56.0 50.1 83.2
Year Highest Occurred 1989 1990 1973 1981 1987 1998 1980 1983 1998 1971 1985 1984 1980
Lowest Mean Temperature (F) 24.4 28.6 45.1 53.4 61.6 71.0 76.7 74.4 66.0 54.4 40.6 30.7 24.4
Year Lowest Occurred 1977 1978 1978 1983 1976 1974 1972 1992 1974 1976 1976 1989 1977
Mean Min. Temperature (F) 28.2 31.7 40.5 48.2 57.6 65.6 69.8 67.8 60.7 48.1 39.5 31.4 49.1
Highest Mean Min. Temperature (F) 35.9 39.4 47.1 54.3 64.6 69.8 73.2 71.9 65.0 56.2 46.9 40.4 73.2
Year Highest Occurred 1998 1990 1973 1991 1991 1998 1993 1995 1986 1984 1985 1984 1993
Lowest Mean Min. Temperature (F) 15.9 19.7 34.6 42.9 51.3 61.1 66.1 62.6 56.2 40.3 29.5 21.0 15.9
Year Lowest Occurred 1977 1978 1971 1997 1976 1974 1976 1976 1974 1987 1976 1989 1977
Mean Precipitation (in.) 4.32 4.17 5.39 4.79 5.78 4.99 4.74 2.92 3.91 3.39 5.11 5.35 54.86
Highest Precipitation (in.) 8.78 10.33 13.29 11.44 14.54 11.16 10.27 9.40 10.82 7.45 10.45 12.62 14.54
Year Highest Occurred 1989 1990 1997 1973 1983 1992 1998 1974 1977 1984 1988 1987 1983
Lowest Precipitation (in.) 0.56 0.97 2.10 1.57 1.92 0.21 1.10 0.16 0.47 0.86 0.95 0.96 0.16
Year Lowest Occurred 1986 1978 1982 1976 1980 1988 1993 1980 1999 2000 1998 1976 1980
Heating Degree Days (F) 866. 655. 447. 199. 63. 2. 0. 0. 22. 191. 455. 749. 3649.
Cooling Degree Days (F) 0. 0. 5. 29. 151. 323. 451. 412. 224. 49. 4. 0. 1648.

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