| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 26.0 | 32.5 | 45.0 | 61.9 | 73.9 | 83.4 | 88.8 | 86.2 | 76.3 | 63.9 | 45.0 | 30.0 | 59.4 |
| Highest Mean Max. Temperature (F) | 41.2 | 46.0 | 59.6 | 70.8 | 80.6 | 91.6 | 94.8 | 92.7 | 83.2 | 72.9 | 52.4 | 40.3 | 62.9 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1981 | 1977 | 1988 | 1974 | 1976 | 1990 | 1963 | 1963 | 1965 | 1987 |
| Lowest Mean Max. Temperature (F) | 12.8 | 19.6 | 32.1 | 51.9 | 68.9 | 77.6 | 82.5 | 80.5 | 65.1 | 55.5 | 30.1 | 10.9 | 56.2 |
| Year Lowest Occurred | 1979 | 1978 | 1962 | 1975 | 1983 | 1962 | 1962 | 1986 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 15.4 | 22.0 | 34.1 | 48.9 | 60.6 | 70.3 | 75.6 | 72.9 | 63.1 | 51.0 | 34.7 | 20.1 | 47.4 |
| Highest Mean Temperature (F) | 30.4 | 34.8 | 43.5 | 55.9 | 67.0 | 77.3 | 79.5 | 78.8 | 69.1 | 60.1 | 40.4 | 30.4 | 51.4 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1981 | 1977 | 1988 | 1974 | 1983 | 1978 | 1963 | 1981 | 1965 | 1987 |
| Lowest Mean Temperature (F) | 2.1 | 9.3 | 22.6 | 41.8 | 55.8 | 64.7 | 71.5 | 68.8 | 55.0 | 45.2 | 21.9 | 2.3 | 44.8 |
| Year Lowest Occurred | 1978 | 1979 | 1969 | 1975 | 1968 | 1969 | 1962 | 1985 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 4.7 | 11.4 | 23.1 | 35.9 | 47.3 | 57.1 | 62.3 | 59.6 | 49.8 | 38.1 | 24.4 | 10.2 | 35.3 |
| Highest Mean Min. Temperature (F) | 19.5 | 23.5 | 32.4 | 41.4 | 53.6 | 63.0 | 66.0 | 65.0 | 55.4 | 47.2 | 30.3 | 20.5 | 39.8 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1977 | 1987 | 1988 | 1964 | 1983 | 1978 | 1963 | 1987 | 1965 | 1987 |
| Lowest Mean Min. Temperature (F) | -8.9 | -1.9 | 12.6 | 31.0 | 41.1 | 51.3 | 57.8 | 55.6 | 43.4 | 32.1 | 13.6 | -6.3 | 33.1 |
| Year Lowest Occurred | 1978 | 1979 | 1969 | 1966 | 1968 | 1969 | 1971 | 1967 | 1974 | 1976 | 1985 | 1983 | 1978 |
| Mean Precipitation (in.) | 0.52 | 0.58 | 1.51 | 2.34 | 3.21 | 3.67 | 3.10 | 2.77 | 2.52 | 1.75 | 1.02 | 0.64 | 23.63 |
| Highest Precipitation (in.) | 2.75 | 3.34 | 3.72 | 7.06 | 9.09 | 10.96 | 7.77 | 7.33 | 7.00 | 5.93 | 3.61 | 3.19 | 32.30 |
| Year Highest Occurred | 1967 | 1969 | 1977 | 1986 | 1972 | 1984 | 1962 | 1975 | 1986 | 1982 | 1983 | 1968 | 1984 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.33 | 0.36 | 0.58 | 0.57 | 0.40 | 0.42 | 0.37 | 0.00 | 0.00 | 0.00 | 13.47 |
| Year Lowest Occurred | 1988 | 1990 | 1978 | 1987 | 1967 | 1988 | 1975 | 1983 | 1974 | 1988 | 1967 | 1990 | 1974 |
| Heating Degree Days (F) | 1538. | 1204. | 958. | 483. | 182. | 24. | 0. | 11. | 122. | 434. | 909. | 1392. | 7257. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 46. | 183. | 329. | 256. | 65. | 0. | 0. | 0. | 879. |