BELTSVILLE, MARYLAND

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 40.4 43.1 53.8 63.9 73.7 82.4 86.7 85.2 78.8 67.5 56.8 45.1 64.8
Highest Mean Max. Temperature (F) 50.4 52.7 61.0 70.4 79.2 86.4 91.7 88.3 84.1 72.7 62.1 53.7 68.1
Year Highest Occurred 1990 1990 1977 1985 1965 1986 1987 1988 1961 1963 1990 1984 1990
Lowest Mean Max. Temperature (F) 31.8 32.0 46.2 58.4 67.5 77.1 82.7 82.4 73.7 62.0 51.5 32.4 63.2
Year Lowest Occurred 1977 1979 1984 1966 1967 1972 1979 1967 1975 1976 1976 1989 1979
Mean Temperature (F) 30.5 33.3 42.9 52.2 62.0 71.0 75.6 74.2 67.2 55.1 45.9 35.8 53.8
Highest Mean Temperature (F) 40.0 41.0 48.4 56.9 65.8 74.2 79.8 77.5 72.3 61.7 51.5 43.4 56.8
Year Highest Occurred 1990 1990 1977 1985 1965 1973 1987 1988 1961 1984 1985 1984 1990
Lowest Mean Temperature (F) 21.8 22.4 36.8 48.6 56.1 66.8 72.2 71.6 62.6 50.4 39.4 24.0 51.8
Year Lowest Occurred 1977 1979 1984 1961 1967 1972 1962 1982 1963 1987 1976 1989 1963
Mean Min. Temperature (F) 20.6 23.4 32.0 40.4 50.3 59.5 64.4 63.1 55.6 42.7 34.8 26.5 42.8
Highest Mean Min. Temperature (F) 29.6 30.3 38.9 43.4 53.1 64.4 67.9 66.6 60.5 52.0 42.9 33.1 45.4
Year Highest Occurred 1990 1984 1973 1973 1985 1973 1987 1988 1961 1984 1985 1972 1990
Lowest Mean Min. Temperature (F) 11.7 12.7 27.4 35.9 44.6 55.5 60.9 59.6 51.2 36.7 27.2 15.5 39.7
Year Lowest Occurred 1977 1979 1984 1971 1967 1980 1962 1963 1962 1987 1976 1989 1963
Mean Precipitation (in.) 2.87 2.63 3.25 3.30 4.32 3.50 4.09 4.14 3.71 3.37 3.24 3.35 41.77
Highest Precipitation (in.) 9.52 5.82 6.07 7.67 9.33 10.29 9.78 9.39 15.45 8.26 6.15 7.64 60.34
Year Highest Occurred 1979 1979 1983 1983 1989 1972 1975 1967 1975 1976 1972 1977 1975
Lowest Precipitation (in.) 0.46 0.41 0.77 0.60 0.69 0.69 0.51 0.05 0.55 0.02 0.63 0.71 27.32
Year Lowest Occurred 1981 1968 1986 1985 1986 1967 1966 1962 1967 1963 1965 1965 1965
Heating Degree Days (F) 1070. 888. 685. 384. 128. 7. 0. 0. 40. 319. 573. 905. 4999.
Cooling Degree Days (F) 0. 0. 0. 0. 35. 187. 329. 285. 106. 12. 0. 0. 954.

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