ROCKY MOUNT EXP FARM, NORTH CAROLINA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 50.3 53.4 62.7 71.9 79.1 85.4 88.9 87.5 82.4 73.3 64.4 54.3 71.1
Highest Mean Max. Temperature (F) 60.9 64.2 69.1 80.2 84.5 91.9 94.5 92.1 86.3 78.7 71.8 64.2 74.3
Year Highest Occurred 1974 1976 1985 1985 1985 1989 1987 1980 1970 1984 1985 1984 1990
Lowest Mean Max. Temperature (F) 39.6 42.5 57.1 65.5 74.6 80.3 84.6 83.7 78.1 67.8 57.2 43.3 69.5
Year Lowest Occurred 1988 1978 1980 1961 1972 1979 1984 1981 1967 1976 1976 1989 1969
Mean Temperature (F) 39.9 42.5 50.8 59.3 67.4 74.4 78.4 77.0 71.2 60.8 52.1 43.5 59.8
Highest Mean Temperature (F) 51.3 51.2 55.6 65.7 71.8 81.9 83.0 80.2 75.4 67.2 60.2 53.1 62.6
Year Highest Occurred 1974 1976 1976 1989 1962 1989 1989 1988 1980 1984 1985 1971 1990
Lowest Mean Temperature (F) 30.5 32.7 46.0 54.6 63.2 70.4 75.6 73.7 65.8 56.9 45.0 34.6 58.0
Year Lowest Occurred 1988 1978 1969 1961 1967 1967 1984 1969 1967 1976 1976 1989 1966
Mean Min. Temperature (F) 29.4 31.5 38.8 46.5 55.6 63.4 67.8 66.5 59.9 48.2 39.8 32.7 48.3
Highest Mean Min. Temperature (F) 41.7 38.6 45.0 54.7 60.3 71.9 72.7 69.2 64.5 59.0 48.6 42.3 51.5
Year Highest Occurred 1974 1990 1973 1989 1962 1989 1989 1988 1980 1971 1985 1971 1989
Lowest Mean Min. Temperature (F) 21.3 22.8 33.7 42.2 50.2 58.4 65.3 62.3 53.5 42.0 32.4 24.8 45.9
Year Lowest Occurred 1988 1978 1981 1971 1967 1967 1963 1969 1967 1981 1967 1963 1967
Mean Precipitation (in.) 3.90 3.86 4.13 3.21 3.89 4.36 4.89 4.77 3.77 2.81 2.78 3.32 45.69
Highest Precipitation (in.) 7.96 6.47 7.45 8.00 9.06 9.60 11.41 13.19 12.88 10.31 6.15 7.49 64.66
Year Highest Occurred 1987 1983 1989 1989 1984 1989 1985 1986 1979 1971 1963 1973 1989
Lowest Precipitation (in.) 1.50 0.83 1.15 0.24 0.98 0.87 1.54 1.30 0.29 0.41 0.54 0.31 35.06
Year Lowest Occurred 1965 1968 1967 1985 1964 1971 1987 1968 1968 1963 1981 1988 1981
Heating Degree Days (F) 778. 630. 440. 185. 40. 5. 0. 0. 12. 172. 392. 667. 3321.
Cooling Degree Days (F) 0. 0. 0. 14. 114. 287. 415. 372. 198. 42. 5. 0. 1447.

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