LOUISVILLE WSO AIRPORT, KENTUCKY

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 41.0 46.6 56.8 66.8 75.4 83.3 87.0 85.8 79.4 68.4 55.9 45.4 66.0
Highest Mean Max. Temperature (F) 51.6 56.0 63.4 72.9 82.1 88.1 92.8 91.7 87.4 75.2 63.4 54.1 92.8
Year Highest Occurred 1990 1976 1973 1981 1987 1988 1999 1983 1998 1971 1999 1971 1999
Lowest Mean Max. Temperature (F) 26.6 31.3 48.5 59.2 70.5 76.9 82.2 81.4 71.5 61.8 48.5 33.5 26.6
Year Lowest Occurred 1977 1978 1984 1983 1973 1974 1979 1992 1974 1976 1976 2000 1977
Mean Temperature (F) 33.0 37.6 46.9 56.4 65.8 74.2 78.4 77.0 70.1 58.5 47.6 37.6 56.9
Highest Mean Temperature (F) 43.2 45.1 53.5 62.3 73.0 78.1 83.2 81.7 76.2 65.1 53.9 46.0 83.2
Year Highest Occurred 1990 2000 1973 1981 1991 1991 1999 1983 1998 1971 1985 1984 1999
Lowest Mean Temperature (F) 18.0 23.2 40.4 51.2 61.4 68.6 74.7 73.2 63.6 52.5 39.4 25.4 18.0
Year Lowest Occurred 1977 1978 1984 1982 1997 1974 1971 1992 1974 1976 1976 1989 1977
Mean Min. Temperature (F) 24.9 28.5 37.1 46.0 56.1 65.1 69.8 68.2 60.9 48.5 39.3 29.9 47.9
Highest Mean Min. Temperature (F) 36.0 36.4 43.6 51.8 65.1 68.9 73.6 73.0 65.2 56.6 47.6 38.2 73.6
Year Highest Occurred 1998 1998 1973 1981 1991 1991 1999 1995 1986 1984 1985 1984 1999
Lowest Mean Min. Temperature (F) 9.3 15.1 31.5 40.7 51.1 60.2 66.0 64.8 55.6 41.7 30.2 17.2 9.3
Year Lowest Occurred 1977 1978 1996 1982 1971 1974 1971 1976 1974 1987 1976 1989 1977
Mean Precipitation (in.) 3.28 3.25 4.41 3.91 4.88 3.76 4.30 3.41 3.05 2.79 3.81 3.69 44.54
Highest Precipitation (in.) 7.23 9.02 12.58 8.48 11.57 8.11 10.05 8.79 10.49 6.47 7.59 8.86 12.58
Year Highest Occurred 1999 1989 1997 1972 1990 1997 1979 1974 1979 1983 1973 1990 1997
Lowest Precipitation (in.) 0.45 0.76 1.54 0.76 1.37 0.49 0.34 0.91 0.96 0.39 0.72 0.65 0.34
Year Lowest Occurred 1981 1978 1981 1976 1977 1984 1999 1973 1978 1987 1976 1976 1999
Heating Degree Days (F) 992. 779. 569. 280. 84. 6. 0. 1. 36. 240. 527. 838. 4352.
Cooling Degree Days (F) 0. 0. 6. 24. 109. 287. 421. 374. 189. 29. 3. 1. 1443.

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