YEMASSEE, SOUTH CAROLINA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 60.3 64.2 72.3 79.3 85.6 90.2 92.4 90.9 86.9 79.3 71.7 63.8 78.1
Highest Mean Max. Temperature (F) 73.1 73.0 80.1 83.7 91.0 96.6 97.5 94.7 91.3 83.1 80.0 71.3 80.7
Year Highest Occurred 1974 1962 1974 1986 1962 1981 1986 1975 1980 1984 1961 1984 1990
Lowest Mean Max. Temperature (F) 50.7 55.5 65.6 73.8 81.2 85.0 88.4 86.5 82.0 72.6 63.2 55.6 75.9
Year Lowest Occurred 1977 1978 1969 1973 1972 1979 1964 1969 1967 1976 1976 1989 1983
Mean Temperature (F) 47.6 50.9 58.5 65.0 71.9 77.9 80.8 79.8 75.3 65.9 57.6 50.5 65.1
Highest Mean Temperature (F) 62.1 58.5 64.7 68.8 76.8 83.5 84.9 84.2 79.0 70.3 65.8 58.0 67.3
Year Highest Occurred 1974 1990 1974 1981 1962 1981 1986 1975 1980 1984 1985 1971 1990
Lowest Mean Temperature (F) 39.2 42.5 52.0 60.8 68.8 73.9 78.1 76.7 69.8 59.3 50.6 43.3 63.1
Year Lowest Occurred 1977 1978 1969 1961 1971 1966 1975 1969 1967 1976 1976 1989 1969
Mean Min. Temperature (F) 34.8 37.5 44.7 50.6 58.1 65.4 69.1 68.7 63.6 52.4 43.5 37.1 52.1
Highest Mean Min. Temperature (F) 51.1 46.1 51.2 54.4 62.6 70.3 72.2 73.6 67.8 59.5 55.2 46.2 55.1
Year Highest Occurred 1974 1990 1973 1981 1962 1981 1986 1975 1979 1985 1985 1982 1982
Lowest Mean Min. Temperature (F) 24.6 29.4 37.8 46.2 53.0 60.3 66.3 65.3 57.6 44.0 36.6 30.3 49.8
Year Lowest Occurred 1981 1978 1971 1987 1971 1988 1971 1985 1967 1987 1970 1969 1969
Mean Precipitation (in.) 3.67 3.78 4.30 3.17 4.77 5.82 6.37 7.03 4.48 2.70 2.21 3.47 51.77
Highest Precipitation (in.) 7.19 7.33 10.64 9.51 11.64 11.52 19.47 21.11 12.30 12.67 5.87 6.39 74.38
Year Highest Occurred 1964 1965 1980 1984 1979 1973 1964 1986 1979 1990 1985 1983 1964
Lowest Precipitation (in.) 0.40 0.99 0.42 0.78 0.78 2.64 1.54 1.54 0.36 0.22 0.36 0.42 35.81
Year Lowest Occurred 1985 1989 1986 1987 1983 1969 1987 1984 1990 1963 1966 1984 1968
Heating Degree Days (F) 556. 405. 232. 63. 0. 0. 0. 0. 0. 86. 251. 458. 2051.
Cooling Degree Days (F) 16. 10. 30. 63. 218. 387. 490. 459. 309. 114. 29. 8. 2133.

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