NORFOLK WSO AIRPORT, VIRGINIA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 47.3 49.7 57.9 66.9 75.3 82.9 86.4 85.1 79.6 69.5 61.2 52.2 67.8
Highest Mean Max. Temperature (F) 58.3 62.3 63.8 73.4 79.3 87.2 91.3 90.4 84.6 75.5 68.7 61.0 72.1
Year Highest Occurred 1990 1976 1977 1985 1965 1989 1987 1980 1980 1990 1985 1971 1990
Lowest Mean Max. Temperature (F) 36.4 38.9 50.9 61.2 70.1 78.6 82.2 81.2 73.5 65.0 54.4 42.4 65.1
Year Lowest Occurred 1977 1978 1962 1975 1967 1972 1962 1966 1963 1964 1967 1963 1966
Mean Temperature (F) 39.1 41.0 48.6 57.0 66.1 74.1 78.2 77.2 71.9 61.2 52.5 43.8 59.2
Highest Mean Temperature (F) 48.6 50.2 54.1 62.0 69.4 78.5 82.4 80.9 76.1 66.9 60.3 52.3 62.8
Year Highest Occurred 1974 1990 1977 1985 1982 1989 1987 1980 1980 1984 1985 1971 1990
Lowest Mean Temperature (F) 29.2 32.6 43.1 52.1 60.6 69.9 74.5 73.7 66.2 56.6 45.6 34.8 56.8
Year Lowest Occurred 1977 1978 1962 1975 1967 1972 1962 1964 1967 1987 1976 1989 1966
Mean Min. Temperature (F) 30.9 32.3 39.3 47.1 56.8 65.2 70.0 69.4 64.2 52.9 43.8 35.4 50.6
Highest Mean Min. Temperature (F) 40.7 40.1 44.3 50.7 60.0 69.7 73.4 72.9 68.3 61.4 51.8 43.5 53.4
Year Highest Occurred 1974 1990 1977 1977 1982 1989 1987 1988 1977 1971 1985 1971 1990
Lowest Mean Min. Temperature (F) 21.9 24.9 34.8 43.0 51.1 61.1 66.8 65.9 58.7 46.5 36.4 27.0 48.4
Year Lowest Occurred 1977 1968 1965 1975 1967 1972 1962 1964 1967 1987 1976 1989 1967
Mean Precipitation (in.) 3.78 3.47 3.70 3.06 3.81 3.82 5.06 4.81 3.90 3.15 2.85 3.23 44.64
Highest Precipitation (in.) 9.93 6.23 8.50 7.25 10.12 9.72 13.73 11.85 13.80 10.12 5.71 6.10 64.96
Year Highest Occurred 1987 1983 1989 1984 1979 1963 1975 1990 1979 1971 1985 1983 1979
Lowest Precipitation (in.) 1.05 1.50 0.75 0.43 1.41 1.16 0.77 0.74 0.26 0.57 0.49 0.67 26.48
Year Lowest Occurred 1981 1976 1986 1985 1986 1975 1983 1975 1986 1984 1965 1988 1986
Heating Degree Days (F) 803. 672. 508. 249. 51. 0. 0. 0. 11. 164. 380. 657. 3495.
Cooling Degree Days (F) 0. 0. 0. 9. 85. 277. 409. 378. 218. 46. 0. 0. 1422.

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