MAMMOTH CAVE PARK, KENTUCKY

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 44.0 50.4 60.4 70.5 78.0 85.0 88.6 87.4 81.6 71.1 58.6 48.4 68.7
Highest Mean Max. Temperature (F) 53.5 59.3 67.4 75.5 83.7 89.8 94.1 94.5 89.9 77.4 65.6 57.6 94.5
Year Highest Occurred 1990 1976 1973 1981 1987 1988 1980 1983 1998 1971 1999 1971 1983
Lowest Mean Max. Temperature (F) 29.4 36.0 54.0 63.3 73.0 78.3 85.0 82.2 75.9 63.9 51.1 36.8 29.4
Year Lowest Occurred 1977 1978 1978 1983 1989 1992 1996 1992 1974 1988 1976 1989 1977
Mean Temperature (F) 34.3 39.1 48.1 56.9 64.9 72.6 76.6 75.2 68.9 58.0 47.8 38.5 56.7
Highest Mean Temperature (F) 43.1 47.0 55.3 62.6 71.8 75.5 81.6 80.1 73.9 64.2 55.1 47.4 81.6
Year Highest Occurred 1990 1990 1973 1981 1991 2000 1999 1983 1998 1984 1985 1971 1999
Lowest Mean Temperature (F) 19.2 25.1 41.4 51.4 60.3 67.9 73.5 71.0 64.7 50.9 38.5 26.5 19.2
Year Lowest Occurred 1977 1978 1996 1983 1997 1992 1984 1992 1975 1988 1976 1989 1977
Mean Min. Temperature (F) 24.5 27.8 35.7 43.2 51.7 60.2 64.6 63.0 56.2 44.9 36.9 28.6 44.8
Highest Mean Min. Temperature (F) 33.9 36.8 43.2 49.7 61.0 64.3 70.5 67.9 61.6 53.4 47.0 37.2 70.5
Year Highest Occurred 1974 1990 1973 1981 1991 2000 1999 1995 1986 1984 1985 1971 1999
Lowest Mean Min. Temperature (F) 9.1 14.1 28.5 37.8 46.3 54.7 60.6 58.2 51.7 37.9 26.0 16.1 9.1
Year Lowest Occurred 1977 1978 1996 1997 1973 1972 1984 1976 1981 1988 1976 1989 1977
Mean Precipitation (in.) 3.85 3.82 5.04 4.18 5.22 4.65 4.56 3.62 4.17 3.46 4.50 4.92 51.99
Highest Precipitation (in.) 8.74 12.08 15.02 9.76 14.11 8.88 8.76 6.95 9.18 7.63 8.42 12.26 15.02
Year Highest Occurred 1974 1989 1997 1979 1995 1997 1992 1985 1979 1975 1988 1978 1997
Lowest Precipitation (in.) 0.72 0.87 1.63 0.53 2.03 1.26 0.83 0.61 0.59 0.42 0.92 1.53 0.42
Year Lowest Occurred 1984 1999 1999 1976 1999 1988 1997 1973 1983 1987 1976 1976 1987
Heating Degree Days (F) 953. 724. 529. 257. 113. 9. 0. 4. 41. 252. 520. 822. 4224.
Cooling Degree Days (F) 0. 0. 4. 12. 108. 236. 358. 321. 158. 35. 2. 0. 1234.

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