| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.5 | 43.4 | 49.3 | 58.3 | 68.8 | 80.4 | 89.3 | 86.6 | 77.1 | 64.3 | 49.6 | 39.6 | 62.1 |
| Highest Mean Max. Temperature (F) | 45.7 | 51.5 | 58.2 | 66.9 | 76.9 | 87.4 | 91.7 | 91.4 | 84.3 | 72.0 | 55.6 | 47.3 | 64.7 |
| Year Highest Occurred | 1961 | 1963 | 1972 | 1987 | 1969 | 1961 | 1988 | 1969 | 1990 | 1988 | 1962 | 1980 | 1990 |
| Lowest Mean Max. Temperature (F) | 28.7 | 35.1 | 41.1 | 50.6 | 62.9 | 72.4 | 85.1 | 78.7 | 69.4 | 54.7 | 43.6 | 33.1 | 58.2 |
| Year Lowest Occurred | 1984 | 1989 | 1964 | 1975 | 1983 | 1967 | 1987 | 1968 | 1986 | 1970 | 1972 | 1985 | 1984 |
| Mean Temperature (F) | 25.2 | 30.3 | 36.4 | 43.8 | 53.1 | 63.1 | 71.6 | 69.4 | 59.6 | 48.3 | 36.0 | 26.4 | 46.9 |
| Highest Mean Temperature (F) | 31.9 | 37.5 | 43.1 | 50.2 | 58.7 | 68.4 | 74.5 | 72.6 | 66.2 | 55.0 | 41.4 | 33.5 | 49.4 |
| Year Highest Occurred | 1969 | 1968 | 1986 | 1990 | 1969 | 1988 | 1988 | 1982 | 1990 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 16.8 | 19.4 | 26.3 | 38.5 | 47.9 | 55.1 | 68.7 | 64.5 | 50.7 | 39.7 | 30.7 | 19.4 | 44.1 |
| Year Lowest Occurred | 1984 | 1964 | 1964 | 1970 | 1965 | 1965 | 1987 | 1968 | 1965 | 1970 | 1979 | 1990 | 1964 |
| Mean Min. Temperature (F) | 11.9 | 17.3 | 23.5 | 29.3 | 37.4 | 45.7 | 53.9 | 52.1 | 42.1 | 32.2 | 22.5 | 13.1 | 31.8 |
| Highest Mean Min. Temperature (F) | 21.3 | 25.9 | 31.0 | 34.4 | 41.7 | 51.4 | 57.3 | 56.4 | 48.0 | 38.6 | 27.6 | 20.5 | 35.0 |
| Year Highest Occurred | 1978 | 1968 | 1978 | 1989 | 1987 | 1988 | 1988 | 1982 | 1990 | 1963 | 1965 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 3.0 | 3.3 | 11.5 | 24.5 | 31.8 | 34.0 | 51.6 | 47.8 | 31.6 | 24.6 | 17.4 | 4.3 | 27.6 |
| Year Lowest Occurred | 1989 | 1964 | 1964 | 1970 | 1965 | 1965 | 1970 | 1964 | 1965 | 1970 | 1979 | 1990 | 1964 |
| Mean Precipitation (in.) | 0.68 | 0.71 | 1.08 | 0.99 | 1.03 | 0.79 | 0.87 | 0.95 | 0.87 | 1.04 | 0.89 | 0.72 | 10.62 |
| Highest Precipitation (in.) | 3.18 | 2.44 | 2.62 | 2.64 | 2.85 | 2.26 | 2.95 | 3.52 | 5.35 | 2.90 | 2.48 | 2.13 | 16.66 |
| Year Highest Occurred | 1969 | 1962 | 1986 | 1963 | 1985 | 1963 | 1985 | 1983 | 1982 | 1981 | 1973 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.07 | 0.06 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.13 | 0.00 | 4.35 |
| Year Lowest Occurred | 1961 | 1988 | 1972 | 1977 | 1972 | 1977 | 1978 | 1985 | 1979 | 1978 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 1234. | 972. | 887. | 636. | 373. | 134. | 0. | 16. | 200. | 518. | 870. | 1197. | 7037. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 77. | 207. | 152. | 38. | 0. | 0. | 0. | 474. |