NEPTUNE 3 S, TENNESSEE

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 45.8 51.4 61.7 70.0 77.9 85.8 90.2 89.3 82.8 71.8 60.1 50.5 69.8
Highest Mean Max. Temperature (F) 53.7 62.2 68.1 75.6 85.7 91.4 95.7 96.8 91.6 78.1 68.1 59.3 96.8
Year Highest Occurred 1989 1976 1976 1981 1987 1988 1986 1983 1998 1998 1999 1984 1983
Lowest Mean Max. Temperature (F) 32.6 36.5 55.3 62.5 71.0 79.6 85.4 85.3 72.5 64.7 53.9 35.9 32.6
Year Lowest Occurred 1977 1978 1993 1983 1997 1974 1979 1981 1989 1988 1989 1989 1977
Mean Temperature (F) 34.2 38.0 47.2 55.0 63.8 72.4 77.3 76.0 69.0 57.3 46.8 38.4 56.3
Highest Mean Temperature (F) 43.9 47.5 53.7 60.6 71.7 75.6 81.5 80.6 75.3 63.9 53.4 47.2 81.5
Year Highest Occurred 1974 1976 1974 1999 1987 1986 1986 1983 1998 1971 1999 1984 1986
Lowest Mean Temperature (F) 21.4 24.7 41.8 49.2 55.8 67.6 73.8 72.3 63.1 50.5 39.5 25.7 21.4
Year Lowest Occurred 1977 1978 1993 1997 1997 1974 1996 1992 1989 1988 1976 1989 1977
Mean Min. Temperature (F) 22.5 24.5 32.6 39.9 49.7 59.0 64.3 62.6 55.2 42.7 33.4 26.3 42.7
Highest Mean Min. Temperature (F) 35.5 32.8 39.5 47.2 57.6 63.6 69.2 67.2 60.7 51.2 40.8 35.1 69.2
Year Highest Occurred 1974 1976 1974 1999 1987 1999 1999 1995 1986 1984 1985 1984 1999
Lowest Mean Min. Temperature (F) 10.2 12.9 27.2 29.9 40.6 53.6 58.1 58.0 48.8 35.1 25.0 15.4 10.2
Year Lowest Occurred 1977 1978 1998 1997 1997 1972 1997 1992 1997 1987 1976 1989 1977
Mean Precipitation (in.) 3.85 4.33 5.51 4.21 5.43 4.61 4.47 2.84 3.80 3.23 4.49 4.98 51.75
Highest Precipitation (in.) 9.90 11.88 14.69 9.87 10.88 10.82 8.24 6.38 10.19 6.82 11.26 12.38 14.69
Year Highest Occurred 1999 1989 1975 1998 1983 1998 1972 1971 1974 1984 1973 1990 1975
Lowest Precipitation (in.) 0.93 1.19 1.40 1.14 1.26 0.15 0.40 0.87 0.00 0.64 0.91 1.48 0.00
Year Lowest Occurred 1986 1978 1987 1976 1987 1988 1983 1983 1978 1987 1999 1976 1978
Heating Degree Days (F) 957. 757. 552. 313. 143. 10. 0. 2. 49. 276. 549. 825. 4433.
Cooling Degree Days (F) 0. 0. 0. 12. 106. 231. 379. 341. 168. 35. 1. 0. 1273.

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