PORT GIBSON 1 NW, MISSISSIPPI

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 55.1 60.0 67.9 74.6 81.5 87.9 90.5 90.6 86.0 76.6 66.1 57.6 74.5
Highest Mean Max. Temperature (F) 63.9 68.1 73.4 81.0 85.4 92.2 95.1 97.4 91.7 80.5 71.9 67.4 97.4
Year Highest Occurred 1972 2000 2000 1981 1996 1998 2000 2000 1980 1998 1973 1984 2000
Lowest Mean Max. Temperature (F) 43.9 49.2 62.2 69.3 76.7 83.6 86.3 86.0 80.2 71.0 58.5 48.5 43.9
Year Lowest Occurred 1977 1978 1993 1983 1976 1983 1989 1992 1974 1976 1976 1989 1977
Mean Temperature (F) 43.9 48.0 55.5 62.2 70.5 77.1 80.1 79.6 74.3 63.1 53.8 46.3 62.9
Highest Mean Temperature (F) 50.3 54.3 60.4 68.8 74.2 81.3 82.6 83.1 78.7 67.8 60.1 54.5 83.1
Year Highest Occurred 1974 1976 1985 1981 1996 1998 1980 2000 1998 1973 1985 1984 2000
Lowest Mean Temperature (F) 33.8 38.6 50.5 57.8 65.6 74.2 76.3 76.3 70.7 56.6 45.7 37.2 33.8
Year Lowest Occurred 1977 1978 1978 1993 1976 1983 1984 1992 1974 1976 1976 1989 1977
Mean Min. Temperature (F) 32.6 36.0 43.0 49.8 59.4 66.3 69.6 68.5 62.6 49.5 41.5 34.9 51.1
Highest Mean Min. Temperature (F) 40.6 42.1 48.5 56.6 65.5 70.4 72.3 72.3 68.4 56.5 50.1 44.9 72.3
Year Highest Occurred 1974 1990 1985 1981 1991 1998 1986 1987 1998 1985 1985 1971 1986
Lowest Mean Min. Temperature (F) 22.7 27.9 37.1 44.5 53.6 62.9 63.6 64.5 58.1 40.6 32.9 25.8 22.7
Year Lowest Occurred 1985 1978 1971 1987 1971 1974 1984 1973 1999 1987 1976 1989 1985
Mean Precipitation (in.) 6.40 4.82 6.44 5.84 5.57 4.64 4.16 3.12 3.42 3.62 5.05 5.84 58.92
Highest Precipitation (in.) 16.98 11.77 14.04 17.30 14.47 11.97 11.24 8.65 8.51 12.97 9.92 11.98 17.30
Year Highest Occurred 1979 1987 1976 1991 1983 1975 1979 1992 1973 1984 1987 1982 1991
Lowest Precipitation (in.) 0.84 0.72 2.13 1.33 0.21 0.80 1.01 0.25 0.71 0.25 1.04 0.96 0.21
Year Lowest Occurred 1986 2000 1978 1987 1988 1990 1983 1993 1984 1989 1999 1980 1988
Heating Degree Days (F) 659. 476. 307. 132. 22. 0. 0. 0. 5. 121. 349. 584. 2655.
Cooling Degree Days (F) 0. 0. 11. 48. 191. 363. 466. 452. 284. 61. 13. 2. 1891.

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