ROUGH RIVER DAM, KENTUCKY

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 40.3 46.3 56.4 67.2 76.1 84.5 88.6 87.6 81.2 69.5 56.7 45.4 66.7
Highest Mean Max. Temperature (F) 50.9 54.7 63.8 72.2 83.0 90.9 93.5 96.3 90.7 75.9 66.2 54.1 96.3
Year Highest Occurred 1990 1990 2000 1986 1987 1988 1999 1983 1998 1971 1999 1984 1983
Lowest Mean Max. Temperature (F) 23.6 31.8 47.9 60.7 71.0 79.3 83.0 82.3 73.7 61.5 47.7 34.2 23.6
Year Lowest Occurred 1977 1978 1978 1983 1981 1974 1979 1992 1974 1976 1976 2000 1977
Mean Temperature (F) 29.8 34.2 43.7 53.6 62.6 71.6 75.7 74.0 67.1 55.0 44.7 34.6 53.9
Highest Mean Temperature (F) 40.5 42.9 50.2 59.1 69.0 75.2 80.4 80.6 72.6 62.0 50.4 44.6 80.6
Year Highest Occurred 1990 1990 1973 1981 1991 1984 1993 1983 1998 1971 1985 1982 1983
Lowest Mean Temperature (F) 12.1 19.5 36.7 48.6 57.2 66.8 72.9 68.7 62.1 47.3 35.3 22.6 12.1
Year Lowest Occurred 1977 1978 1996 1997 1997 1992 1971 1992 1974 1988 1976 2000 1977
Mean Min. Temperature (F) 19.3 22.1 30.9 39.9 49.1 58.6 62.7 60.4 52.9 40.4 32.7 23.8 41.1
Highest Mean Min. Temperature (F) 30.0 31.1 38.3 46.7 57.5 62.8 68.3 65.5 59.5 50.7 40.6 35.3 68.3
Year Highest Occurred 1990 1990 1973 1981 1991 1981 1993 1995 1977 1984 1985 1982 1993
Lowest Mean Min. Temperature (F) 0.5 7.2 23.4 32.7 42.5 52.4 58.4 55.0 46.1 30.0 22.9 10.7 0.5
Year Lowest Occurred 1977 1978 1996 1997 1997 1988 2000 1992 1999 1987 1976 1989 1977
Mean Precipitation (in.) 3.45 3.87 4.42 4.24 5.43 4.05 4.33 3.44 3.59 3.27 4.05 4.14 48.28
Highest Precipitation (in.) 7.76 13.85 15.73 9.60 16.31 8.03 9.47 7.60 10.07 6.02 8.69 10.85 16.31
Year Highest Occurred 1999 1989 1997 1979 1995 1998 1979 1979 1979 1985 1988 1990 1995
Lowest Precipitation (in.) 0.68 0.80 1.51 0.83 1.83 0.69 0.13 0.60 0.63 0.28 0.61 0.78 0.13
Year Lowest Occurred 1981 1978 1995 1976 1994 1988 1997 1987 1983 1982 1976 1976 1997
Heating Degree Days (F) 1091. 864. 662. 348. 150. 10. 0. 6. 62. 335. 610. 944. 5082.
Cooling Degree Days (F) 0. 0. 0. 4. 75. 206. 330. 286. 123. 23. 0. 0. 1047.

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