CHESTERTOWN, MARYLAND

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 40.1 43.1 53.4 63.9 74.2 82.8 86.7 85.6 79.1 68.0 56.7 45.0 64.9
Highest Mean Max. Temperature (F) 50.2 53.2 59.1 69.7 78.8 86.4 91.3 89.1 84.6 73.7 62.5 52.4 67.9
Year Highest Occurred 1990 1976 1977 1985 1965 1986 1987 1983 1961 1963 1964 1984 1990
Lowest Mean Max. Temperature (F) 30.8 31.5 45.9 58.7 68.0 76.8 83.6 82.5 75.4 61.9 49.8 33.2 63.1
Year Lowest Occurred 1977 1979 1984 1975 1967 1972 1962 1967 1966 1976 1976 1989 1972
Mean Temperature (F) 32.1 34.7 43.9 53.4 63.6 72.5 76.8 75.6 68.9 57.5 47.4 37.0 55.3
Highest Mean Temperature (F) 41.1 42.6 49.4 57.8 67.2 75.5 80.8 79.0 74.7 63.2 52.7 44.2 57.5
Year Highest Occurred 1990 1976 1977 1985 1965 1987 1987 1988 1961 1984 1985 1984 1990
Lowest Mean Temperature (F) 22.1 24.1 38.3 49.2 57.7 68.0 73.8 72.7 65.3 52.2 40.2 25.0 53.5
Year Lowest Occurred 1977 1979 1984 1975 1967 1972 1962 1982 1963 1976 1976 1989 1978
Mean Min. Temperature (F) 24.0 26.2 34.4 42.9 53.0 62.1 66.9 65.6 58.6 47.0 38.0 28.9 45.6
Highest Mean Min. Temperature (F) 32.0 33.2 39.6 46.0 55.9 66.3 70.3 69.2 64.8 54.3 45.1 35.9 47.1
Year Highest Occurred 1990 1984 1977 1981 1985 1989 1987 1988 1961 1984 1985 1984 1990
Lowest Mean Min. Temperature (F) 13.3 16.4 30.6 39.5 47.4 57.8 63.9 61.8 55.0 41.8 30.5 16.8 43.5
Year Lowest Occurred 1977 1978 1984 1971 1967 1980 1978 1982 1984 1974 1976 1989 1978
Mean Precipitation (in.) 3.18 3.06 3.65 3.24 4.03 4.35 3.70 3.96 3.64 3.14 3.39 3.77 43.11
Highest Precipitation (in.) 8.10 6.30 6.99 8.09 7.22 15.44 8.57 11.21 7.93 9.23 8.37 8.09 61.38
Year Highest Occurred 1979 1971 1983 1983 1990 1989 1975 1971 1987 1971 1972 1983 1989
Lowest Precipitation (in.) 0.56 0.76 1.12 0.57 0.61 1.06 0.80 0.62 0.73 0.00 0.21 0.82 29.49
Year Lowest Occurred 1981 1977 1987 1985 1964 1988 1963 1987 1986 1963 1976 1985 1965
Heating Degree Days (F) 1020. 848. 654. 348. 100. 0. 0. 0. 23. 252. 528. 868. 4641.
Cooling Degree Days (F) 0. 0. 0. 0. 57. 228. 366. 329. 140. 19. 0. 0. 1139.

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