DURHAM, NORTH CAROLINA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 49.1 52.3 61.9 71.3 79.2 85.5 88.8 87.7 82.1 72.4 63.1 52.8 70.5
Highest Mean Max. Temperature (F) 59.1 62.9 67.6 77.4 84.7 89.8 94.9 93.3 88.5 76.8 69.2 62.0 74.5
Year Highest Occurred 1990 1976 1976 1985 1962 1986 1977 1987 1970 1984 1985 1984 1990
Lowest Mean Max. Temperature (F) 38.2 43.3 56.2 65.7 74.6 81.6 85.5 84.4 74.1 67.0 56.8 43.5 69.1
Year Lowest Occurred 1977 1978 1962 1961 1972 1979 1984 1981 1988 1976 1976 1989 1978
Mean Temperature (F) 37.1 39.4 48.3 57.4 66.1 73.4 77.1 76.1 69.7 58.7 49.6 40.7 57.8
Highest Mean Temperature (F) 48.5 47.5 52.5 62.1 71.5 77.4 81.4 80.9 75.2 64.5 57.8 48.9 61.8
Year Highest Occurred 1974 1990 1974 1985 1965 1987 1990 1987 1970 1984 1985 1971 1990
Lowest Mean Temperature (F) 27.7 33.1 42.5 52.4 62.2 70.2 74.7 71.8 64.2 52.4 42.2 32.0 55.9
Year Lowest Occurred 1977 1978 1969 1961 1981 1979 1984 1981 1988 1988 1976 1989 1988
Mean Min. Temperature (F) 25.1 26.5 34.6 43.4 53.0 61.3 65.3 64.4 57.4 44.9 36.0 28.6 45.0
Highest Mean Min. Temperature (F) 38.7 33.1 41.6 49.0 58.8 67.2 70.6 69.2 61.9 55.6 46.4 38.6 49.1
Year Highest Occurred 1974 1990 1973 1987 1965 1987 1990 1990 1970 1971 1985 1971 1990
Lowest Mean Min. Temperature (F) 17.1 18.7 27.8 39.0 47.4 57.0 62.8 59.1 50.9 36.5 27.5 20.4 42.0
Year Lowest Occurred 1977 1968 1969 1961 1989 1988 1962 1981 1976 1988 1976 1989 1981
Mean Precipitation (in.) 3.90 4.04 4.26 3.32 4.63 4.31 4.34 4.91 3.58 3.58 3.54 3.69 48.10
Highest Precipitation (in.) 9.72 8.23 9.39 7.29 7.96 10.93 8.65 13.84 11.70 9.39 13.52 7.68 60.15
Year Highest Occurred 1978 1979 1983 1987 1974 1965 1975 1986 1975 1971 1985 1983 1971
Lowest Precipitation (in.) 0.97 1.01 1.14 0.60 1.11 0.52 0.74 1.08 0.17 0.53 0.63 0.38 32.90
Year Lowest Occurred 1981 1978 1985 1985 1987 1990 1983 1980 1990 1963 1981 1988 1976
Heating Degree Days (F) 865. 717. 518. 235. 62. 0. 0. 0. 27. 228. 462. 753. 3867.
Cooling Degree Days (F) 0. 0. 0. 7. 96. 255. 375. 344. 168. 33. 0. 0. 1278.

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