| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.3 | 40.6 | 49.5 | 59.9 | 69.5 | 79.3 | 87.9 | 86.4 | 74.7 | 63.6 | 46.3 | 35.9 | 60.6 |
| Highest Mean Max. Temperature (F) | 48.7 | 50.7 | 60.4 | 71.4 | 76.6 | 92.3 | 92.9 | 93.7 | 84.1 | 71.0 | 53.5 | 46.3 | 64.4 |
| Year Highest Occurred | 1981 | 1961 | 1986 | 1987 | 1985 | 1988 | 1988 | 1971 | 1990 | 1963 | 1965 | 1979 | 1988 |
| Lowest Mean Max. Temperature (F) | 15.3 | 22.6 | 36.4 | 48.9 | 63.7 | 73.0 | 82.5 | 78.1 | 58.2 | 52.9 | 26.9 | 19.4 | 56.4 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1974 | 1968 | 1972 | 1968 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Temperature (F) | 22.3 | 28.9 | 36.3 | 45.7 | 54.9 | 63.7 | 70.7 | 68.9 | 58.5 | 48.9 | 34.9 | 25.2 | 46.6 |
| Highest Mean Temperature (F) | 34.7 | 38.5 | 46.0 | 52.9 | 60.0 | 73.8 | 74.7 | 75.1 | 65.3 | 53.2 | 40.4 | 32.9 | 49.3 |
| Year Highest Occurred | 1981 | 1961 | 1986 | 1987 | 1985 | 1988 | 1989 | 1971 | 1990 | 1965 | 1965 | 1979 | 1981 |
| Lowest Mean Temperature (F) | 5.6 | 12.2 | 23.0 | 37.5 | 50.9 | 59.9 | 66.7 | 64.4 | 46.7 | 41.5 | 17.3 | 8.8 | 43.0 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1974 | 1969 | 1972 | 1968 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Min. Temperature (F) | 11.3 | 17.1 | 23.2 | 31.4 | 40.3 | 48.1 | 53.5 | 51.5 | 42.2 | 34.1 | 23.4 | 14.4 | 32.5 |
| Highest Mean Min. Temperature (F) | 23.4 | 26.3 | 31.6 | 36.2 | 44.1 | 55.3 | 57.4 | 56.5 | 48.3 | 37.5 | 27.9 | 22.4 | 34.9 |
| Year Highest Occurred | 1986 | 1961 | 1986 | 1974 | 1987 | 1988 | 1989 | 1971 | 1967 | 1975 | 1990 | 1973 | 1974 |
| Lowest Mean Min. Temperature (F) | -4.1 | 1.7 | 9.5 | 26.0 | 37.0 | 45.5 | 49.6 | 47.7 | 35.2 | 27.2 | 7.6 | -1.9 | 29.5 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1982 | 1984 | 1971 | 1962 | 1965 | 1984 | 1985 | 1983 | 1978 |
| Mean Precipitation (in.) | 0.79 | 0.54 | 1.06 | 1.71 | 2.42 | 1.85 | 0.69 | 0.83 | 1.43 | 1.11 | 0.68 | 0.61 | 13.72 |
| Highest Precipitation (in.) | 2.42 | 1.60 | 3.16 | 3.98 | 6.08 | 5.47 | 3.16 | 2.37 | 4.74 | 3.53 | 2.17 | 1.49 | 20.85 |
| Year Highest Occurred | 1972 | 1971 | 1980 | 1964 | 1978 | 1964 | 1987 | 1968 | 1978 | 1971 | 1975 | 1967 | 1975 |
| Lowest Precipitation (in.) | 0.09 | 0.05 | 0.14 | 0.26 | 0.61 | 0.20 | 0.00 | 0.01 | 0.00 | 0.03 | 0.05 | 0.03 | 9.00 |
| Year Lowest Occurred | 1961 | 1973 | 1961 | 1962 | 1967 | 1961 | 1964 | 1963 | 1979 | 1987 | 1963 | 1986 | 1979 |
| Heating Degree Days (F) | 1324. | 1011. | 890. | 579. | 317. | 118. | 14. | 41. | 239. | 499. | 903. | 1234. | 7169. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 79. | 191. | 161. | 44. | 0. | 0. | 0. | 475. |