| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 22.8 | 27.3 | 39.0 | 54.8 | 68.4 | 77.0 | 82.0 | 78.4 | 69.2 | 58.2 | 41.6 | 27.2 | 53.8 |
| Highest Mean Max. Temperature (F) | 34.0 | 35.3 | 48.6 | 62.3 | 79.3 | 83.8 | 86.5 | 83.2 | 72.6 | 68.4 | 49.7 | 34.7 | 57.3 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1977 | 1977 | 1988 | 1976 | 1988 | 1978 | 1963 | 1975 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 13.0 | 19.7 | 32.4 | 47.6 | 59.9 | 67.9 | 76.8 | 74.0 | 63.6 | 52.2 | 34.9 | 15.6 | 51.1 |
| Year Lowest Occurred | 1963 | 1979 | 1984 | 1975 | 1983 | 1969 | 1962 | 1964 | 1965 | 1987 | 1985 | 1983 | 1972 |
| Mean Temperature (F) | 12.9 | 16.5 | 29.1 | 43.6 | 55.8 | 64.6 | 69.8 | 66.7 | 57.8 | 47.4 | 33.0 | 18.6 | 43.0 |
| Highest Mean Temperature (F) | 24.1 | 24.6 | 36.8 | 48.6 | 63.6 | 68.9 | 73.4 | 71.5 | 61.1 | 56.8 | 39.1 | 27.6 | 46.5 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1987 | 1977 | 1987 | 1983 | 1988 | 1961 | 1963 | 1963 | 1965 | 1987 |
| Lowest Mean Temperature (F) | 2.5 | 7.8 | 22.9 | 37.3 | 49.3 | 58.3 | 65.4 | 62.8 | 53.5 | 41.5 | 25.2 | 7.0 | 39.9 |
| Year Lowest Occurred | 1977 | 1979 | 1984 | 1975 | 1983 | 1969 | 1971 | 1971 | 1974 | 1987 | 1976 | 1983 | 1972 |
| Mean Min. Temperature (F) | 2.9 | 5.7 | 19.1 | 32.3 | 43.0 | 52.2 | 57.6 | 55.0 | 46.4 | 36.5 | 24.4 | 9.9 | 32.1 |
| Highest Mean Min. Temperature (F) | 14.2 | 15.7 | 26.5 | 37.8 | 50.3 | 56.0 | 62.4 | 59.7 | 51.6 | 45.1 | 30.5 | 21.3 | 35.7 |
| Year Highest Occurred | 1990 | 1983 | 1973 | 1986 | 1962 | 1970 | 1983 | 1988 | 1961 | 1963 | 1963 | 1965 | 1987 |
| Lowest Mean Min. Temperature (F) | -9.0 | -4.2 | 11.9 | 26.8 | 38.0 | 46.1 | 52.7 | 48.9 | 40.4 | 28.9 | 14.2 | -3.3 | 28.5 |
| Year Lowest Occurred | 1977 | 1979 | 1978 | 1982 | 1967 | 1982 | 1971 | 1971 | 1974 | 1976 | 1976 | 1976 | 1976 |
| Mean Precipitation (in.) | 1.24 | 1.08 | 1.93 | 2.74 | 3.57 | 3.58 | 3.50 | 3.64 | 3.97 | 2.56 | 2.23 | 1.53 | 31.57 |
| Highest Precipitation (in.) | 3.72 | 3.04 | 4.40 | 5.23 | 9.17 | 9.51 | 8.55 | 7.54 | 9.66 | 5.48 | 5.76 | 3.23 | 39.61 |
| Year Highest Occurred | 1976 | 1976 | 1973 | 1968 | 1973 | 1968 | 1971 | 1979 | 1965 | 1969 | 1985 | 1968 | 1965 |
| Lowest Precipitation (in.) | 0.11 | 0.07 | 0.07 | 0.61 | 0.90 | 0.89 | 1.19 | 0.31 | 0.42 | 0.43 | 0.00 | 0.44 | 19.81 |
| Year Lowest Occurred | 1981 | 1969 | 1978 | 1989 | 1988 | 1988 | 1981 | 1969 | 1976 | 1975 | 1976 | 1976 | 1989 |
| Heating Degree Days (F) | 1615. | 1358. | 1113. | 642. | 314. | 86. | 18. | 44. | 221. | 546. | 960. | 1438. | 8355. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 29. | 74. | 167. | 97. | 0. | 0. | 0. | 0. | 367. |