| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 57.4 | 61.0 | 63.3 | 69.5 | 77.4 | 85.8 | 93.2 | 92.6 | 87.8 | 77.7 | 63.0 | 56.4 | 73.8 |
| Highest Mean Max. Temperature (F) | 64.3 | 68.3 | 69.5 | 80.9 | 85.5 | 91.0 | 98.5 | 99.8 | 96.9 | 86.6 | 73.1 | 64.9 | 76.3 |
| Year Highest Occurred | 1962 | 1967 | 1988 | 1966 | 1966 | 1961 | 1970 | 1967 | 1974 | 1965 | 1976 | 1976 | 1966 |
| Lowest Mean Max. Temperature (F) | 52.5 | 51.7 | 55.8 | 56.7 | 67.6 | 77.7 | 85.6 | 84.6 | 75.6 | 67.2 | 55.1 | 50.2 | 69.7 |
| Year Lowest Occurred | 1969 | 1969 | 1983 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1984 | 1972 | 1983 |
| Mean Temperature (F) | 45.3 | 48.6 | 50.5 | 54.4 | 60.4 | 67.5 | 73.1 | 72.4 | 68.1 | 60.2 | 50.3 | 45.1 | 58.0 |
| Highest Mean Temperature (F) | 48.7 | 54.4 | 55.2 | 60.5 | 65.2 | 71.5 | 76.3 | 75.9 | 73.2 | 64.9 | 56.4 | 48.5 | 59.5 |
| Year Highest Occurred | 1984 | 1963 | 1986 | 1966 | 1969 | 1961 | 1984 | 1967 | 1974 | 1978 | 1976 | 1981 | 1970 |
| Lowest Mean Temperature (F) | 42.1 | 43.4 | 46.8 | 45.0 | 54.0 | 61.3 | 67.8 | 68.5 | 60.8 | 55.2 | 46.5 | 37.9 | 56.7 |
| Year Lowest Occurred | 1964 | 1990 | 1967 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1985 | 1990 | 1989 |
| Mean Min. Temperature (F) | 33.2 | 36.2 | 37.6 | 39.1 | 43.3 | 49.2 | 52.9 | 52.1 | 48.4 | 42.7 | 37.6 | 33.6 | 42.2 |
| Highest Mean Min. Temperature (F) | 40.3 | 42.8 | 43.6 | 43.9 | 47.2 | 52.8 | 56.9 | 54.9 | 52.6 | 47.2 | 43.2 | 41.9 | 45.6 |
| Year Highest Occurred | 1970 | 1983 | 1978 | 1990 | 1987 | 1977 | 1984 | 1983 | 1983 | 1979 | 1970 | 1983 | 1983 |
| Lowest Mean Min. Temperature (F) | 25.4 | 28.1 | 33.0 | 32.9 | 39.2 | 44.9 | 48.5 | 49.0 | 43.6 | 38.3 | 32.8 | 24.6 | 39.3 |
| Year Lowest Occurred | 1963 | 1964 | 1967 | 1964 | 1965 | 1980 | 1966 | 1963 | 1965 | 1966 | 1990 | 1990 | 1964 |
| Mean Precipitation (in.) | 8.89 | 6.51 | 6.30 | 2.73 | 1.08 | 0.17 | 0.07 | 0.27 | 0.82 | 2.91 | 7.32 | 7.78 | 44.85 |
| Highest Precipitation (in.) | 25.30 | 18.80 | 19.15 | 8.28 | 7.47 | 1.03 | 1.48 | 2.37 | 4.96 | 9.56 | 17.77 | 26.12 | 84.15 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1963 | 1990 | 1967 | 1974 | 1968 | 1986 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.59 | 0.25 | 0.35 | 0.13 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.62 | 0.01 | 19.15 |
| Year Lowest Occurred | 1984 | 1988 | 1988 | 1985 | 1976 | 1986 | 1990 | 1990 | 1988 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 611. | 459. | 450. | 331. | 173. | 38. | 6. | 0. | 37. | 164. | 441. | 617. | 3327. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 13. | 31. | 113. | 257. | 233. | 130. | 16. | 0. | 0. | 793. |