FRANKFORT LOCK 4, KENTUCKY

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 40.2 44.4 55.7 66.5 75.6 83.4 87.3 86.2 80.3 69.3 57.0 45.4 65.9
Highest Mean Max. Temperature (F) 49.7 54.4 63.0 72.0 83.4 88.6 92.8 95.2 84.6 80.4 63.3 54.3 68.0
Year Highest Occurred 1990 1976 1973 1985 1962 1988 1983 1983 1983 1963 1964 1982 1964
Lowest Mean Max. Temperature (F) 26.4 31.8 48.9 59.1 70.5 78.2 83.2 82.1 72.5 62.4 49.2 32.1 63.6
Year Lowest Occurred 1977 1978 1965 1961 1990 1974 1979 1967 1974 1976 1976 1989 1978
Mean Temperature (F) 29.8 33.2 43.6 53.4 62.9 71.2 75.5 74.3 67.8 55.7 45.6 35.3 54.0
Highest Mean Temperature (F) 39.7 41.8 50.9 58.1 70.7 74.9 79.6 80.5 72.1 63.8 53.0 43.9 55.8
Year Highest Occurred 1990 1976 1973 1981 1962 1971 1983 1983 1970 1971 1985 1971 1973
Lowest Mean Temperature (F) 15.8 21.4 37.0 48.8 58.5 67.2 72.5 70.6 62.3 49.3 37.3 22.4 52.4
Year Lowest Occurred 1977 1978 1969 1961 1981 1982 1967 1967 1974 1988 1976 1989 1979
Mean Min. Temperature (F) 19.4 21.9 31.4 40.3 50.1 59.0 63.7 62.3 55.3 42.1 34.0 25.1 42.1
Highest Mean Min. Temperature (F) 30.6 30.5 38.8 44.6 58.0 62.1 66.7 66.7 60.4 51.6 44.1 33.5 44.7
Year Highest Occurred 1974 1990 1973 1981 1962 1971 1986 1975 1971 1984 1985 1971 1973
Lowest Mean Min. Temperature (F) 5.2 11.0 24.1 35.5 45.5 54.2 60.2 57.6 50.2 33.9 25.3 12.6 39.3
Year Lowest Occurred 1977 1978 1969 1982 1976 1982 1984 1982 1967 1987 1976 1989 1963
Mean Precipitation (in.) 2.64 2.99 4.29 3.78 4.66 3.55 4.30 3.55 3.36 2.53 3.34 3.53 42.52
Highest Precipitation (in.) 5.77 7.83 13.59 7.63 10.74 6.12 8.04 8.21 11.45 6.71 7.76 9.29 55.47
Year Highest Occurred 1974 1989 1964 1972 1983 1987 1986 1974 1979 1983 1972 1990 1979
Lowest Precipitation (in.) 0.37 0.58 1.12 0.75 1.82 0.44 0.79 0.84 0.48 0.08 0.42 0.49 30.61
Year Lowest Occurred 1981 1968 1979 1976 1964 1988 1983 1983 1963 1963 1976 1965 1963
Heating Degree Days (F) 1091. 890. 663. 348. 145. 5. 0. 0. 47. 310. 582. 921. 5002.
Cooling Degree Days (F) 0. 0. 0. 0. 80. 191. 326. 288. 131. 22. 0. 0. 1038.

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