MECHANICSVILLE 5 NE, MARYLAND

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 42.5 46.1 56.9 66.5 75.4 83.2 87.0 85.3 78.5 68.0 58.3 47.7 66.3
Highest Mean Max. Temperature (F) 53.4 58.7 61.8 73.8 82.7 85.8 91.9 89.8 84.6 74.2 63.6 56.7 68.6
Year Highest Occurred 1990 1976 1977 1985 1965 1964 1980 1983 1970 1963 1964 1971 1990
Lowest Mean Max. Temperature (F) 32.8 35.5 50.0 61.2 70.5 79.4 83.2 81.2 74.5 62.1 52.0 35.5 63.6
Year Lowest Occurred 1977 1979 1984 1975 1967 1974 1984 1990 1990 1976 1976 1989 1982
Mean Temperature (F) 33.3 36.3 45.7 54.4 63.9 71.9 76.2 74.6 67.9 56.8 47.6 38.2 55.6
Highest Mean Temperature (F) 43.1 46.6 50.8 59.5 69.1 74.7 79.0 78.1 72.7 63.7 54.7 46.0 58.1
Year Highest Occurred 1990 1976 1977 1981 1965 1973 1987 1983 1970 1971 1985 1971 1990
Lowest Mean Temperature (F) 23.4 26.7 41.1 49.4 58.7 67.7 72.4 70.8 64.5 50.9 40.5 26.2 54.0
Year Lowest Occurred 1977 1979 1970 1982 1967 1979 1978 1981 1981 1988 1976 1989 1982
Mean Min. Temperature (F) 24.0 26.5 34.5 42.2 52.3 60.6 65.3 63.9 57.2 45.4 36.8 28.7 44.8
Highest Mean Min. Temperature (F) 32.8 36.2 40.1 46.9 56.0 65.2 68.5 67.9 61.7 55.4 46.2 36.4 47.7
Year Highest Occurred 1990 1984 1973 1981 1975 1989 1987 1988 1961 1971 1985 1982 1990
Lowest Mean Min. Temperature (F) 14.0 17.8 30.1 36.1 46.9 54.8 60.9 59.6 53.1 39.5 29.0 16.9 42.7
Year Lowest Occurred 1977 1979 1970 1971 1967 1979 1978 1981 1967 1987 1976 1989 1967
Mean Precipitation (in.) 3.46 3.38 3.97 3.41 4.12 4.06 4.22 4.06 3.75 3.43 3.51 3.34 44.71
Highest Precipitation (in.) 8.29 8.55 10.85 8.12 8.88 11.75 7.76 8.54 10.32 8.57 7.67 7.77 65.28
Year Highest Occurred 1978 1979 1984 1983 1990 1972 1989 1979 1975 1976 1963 1986 1979
Lowest Precipitation (in.) 0.42 0.49 1.24 0.43 0.45 0.85 1.23 1.01 0.27 0.04 0.33 0.31 33.47
Year Lowest Occurred 1981 1968 1986 1985 1964 1988 1983 1981 1967 1963 1965 1965 1965
Heating Degree Days (F) 983. 804. 598. 321. 94. 0. 0. 0. 34. 276. 522. 831. 4463.
Cooling Degree Days (F) 0. 0. 0. 0. 60. 210. 347. 298. 121. 22. 0. 0. 1058.

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