| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 29.5 | 34.3 | 41.8 | 52.7 | 63.7 | 74.6 | 83.1 | 80.8 | 70.0 | 57.2 | 40.7 | 30.8 | 54.9 |
| Highest Mean Max. Temperature (F) | 39.2 | 44.2 | 50.8 | 62.4 | 72.4 | 84.5 | 87.7 | 87.4 | 76.5 | 65.8 | 47.0 | 41.8 | 58.6 |
| Year Highest Occurred | 1981 | 1977 | 1986 | 1987 | 1969 | 1977 | 1988 | 1971 | 1969 | 1988 | 1976 | 1980 | 1977 |
| Lowest Mean Max. Temperature (F) | 15.8 | 21.9 | 31.6 | 45.2 | 56.9 | 66.9 | 77.8 | 75.5 | 58.3 | 46.4 | 32.9 | 21.5 | 50.8 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1964 | 1965 | 1965 | 1965 | 1965 | 1965 | 1969 | 1985 | 1978 | 1964 |
| Mean Temperature (F) | 20.4 | 24.3 | 31.3 | 40.6 | 50.3 | 60.2 | 68.0 | 65.8 | 55.5 | 44.3 | 30.4 | 21.4 | 42.7 |
| Highest Mean Temperature (F) | 27.3 | 30.8 | 39.7 | 47.4 | 56.2 | 67.5 | 72.1 | 70.4 | 62.0 | 51.7 | 35.4 | 32.2 | 44.8 |
| Year Highest Occurred | 1981 | 1977 | 1986 | 1987 | 1969 | 1988 | 1988 | 1969 | 1990 | 1988 | 1966 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 6.8 | 12.3 | 22.0 | 35.0 | 46.0 | 55.4 | 65.0 | 61.4 | 46.8 | 36.0 | 23.4 | 12.6 | 40.2 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1975 | 1965 | 1969 | 1986 | 1968 | 1965 | 1969 | 1979 | 1978 | 1964 |
| Mean Min. Temperature (F) | 11.1 | 14.3 | 20.7 | 28.4 | 36.8 | 45.7 | 52.8 | 50.7 | 41.0 | 31.3 | 20.0 | 11.9 | 30.4 |
| Highest Mean Min. Temperature (F) | 18.7 | 20.9 | 28.5 | 34.0 | 41.8 | 51.9 | 57.7 | 55.5 | 47.9 | 38.8 | 26.3 | 22.5 | 32.8 |
| Year Highest Occurred | 1971 | 1986 | 1986 | 1985 | 1985 | 1988 | 1985 | 1983 | 1990 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -2.3 | 2.6 | 11.4 | 22.9 | 32.5 | 40.8 | 49.1 | 46.1 | 34.4 | 25.5 | 13.4 | 3.6 | 28.3 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1975 | 1975 | 1972 | 1975 | 1970 | 1969 | 1979 | 1978 | 1973 |
| Mean Precipitation (in.) | 0.53 | 0.55 | 0.78 | 1.01 | 1.14 | 0.95 | 0.91 | 0.71 | 0.90 | 0.75 | 0.58 | 0.63 | 9.44 |
| Highest Precipitation (in.) | 1.54 | 1.26 | 1.97 | 2.45 | 3.56 | 3.49 | 3.67 | 3.12 | 3.67 | 2.05 | 1.60 | 1.78 | 14.54 |
| Year Highest Occurred | 1978 | 1962 | 1977 | 1968 | 1971 | 1969 | 1973 | 1963 | 1965 | 1971 | 1983 | 1975 | 1965 |
| Lowest Precipitation (in.) | 0.04 | 0.02 | 0.22 | 0.04 | 0.00 | 0.03 | 0.13 | 0.04 | 0.02 | 0.00 | 0.00 | 0.00 | 4.53 |
| Year Lowest Occurred | 1986 | 1977 | 1976 | 1987 | 1974 | 1977 | 1988 | 1985 | 1974 | 1988 | 1976 | 1962 | 1988 |
| Heating Degree Days (F) | 1383. | 1140. | 1045. | 732. | 456. | 186. | 22. | 66. | 303. | 642. | 1038. | 1352. | 8365. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 42. | 115. | 91. | 18. | 0. | 0. | 0. | 266. |