| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.4 | 54.3 | 58.3 | 62.7 | 69.0 | 76.2 | 82.9 | 83.2 | 78.2 | 68.0 | 54.2 | 47.8 | 65.3 |
| Highest Mean Max. Temperature (F) | 54.5 | 60.6 | 65.2 | 70.8 | 74.3 | 81.9 | 90.4 | 91.5 | 85.8 | 77.7 | 58.5 | 53.2 | 68.4 |
| Year Highest Occurred | 1986 | 1977 | 1986 | 1987 | 1987 | 1986 | 1985 | 1967 | 1974 | 1987 | 1976 | 1977 | 1987 |
| Lowest Mean Max. Temperature (F) | 42.5 | 47.8 | 52.5 | 55.0 | 62.9 | 70.5 | 76.2 | 77.6 | 72.7 | 62.5 | 48.4 | 42.6 | 62.5 |
| Year Lowest Occurred | 1963 | 1989 | 1975 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1971 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 40.8 | 44.8 | 47.6 | 50.7 | 56.3 | 62.8 | 67.8 | 67.8 | 62.5 | 55.1 | 46.5 | 41.1 | 53.7 |
| Highest Mean Temperature (F) | 46.1 | 50.5 | 53.0 | 55.8 | 60.7 | 66.9 | 72.7 | 72.7 | 66.4 | 60.2 | 49.2 | 45.4 | 55.7 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1989 | 1987 | 1986 | 1985 | 1967 | 1990 | 1988 | 1980 | 1977 | 1986 |
| Lowest Mean Temperature (F) | 33.8 | 37.6 | 44.2 | 45.6 | 51.9 | 58.0 | 64.0 | 64.9 | 58.8 | 52.2 | 41.1 | 35.3 | 51.9 |
| Year Lowest Occurred | 1963 | 1989 | 1985 | 1975 | 1977 | 1976 | 1963 | 1969 | 1985 | 1971 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 33.1 | 35.2 | 36.9 | 38.8 | 43.6 | 49.3 | 52.6 | 52.4 | 46.8 | 42.1 | 38.8 | 34.4 | 42.0 |
| Highest Mean Min. Temperature (F) | 38.1 | 41.3 | 41.0 | 42.0 | 47.0 | 53.8 | 55.1 | 55.9 | 51.1 | 46.2 | 41.6 | 39.2 | 43.8 |
| Year Highest Occurred | 1981 | 1963 | 1983 | 1989 | 1987 | 1969 | 1990 | 1990 | 1963 | 1979 | 1983 | 1981 | 1986 |
| Lowest Mean Min. Temperature (F) | 25.1 | 27.4 | 32.9 | 35.6 | 40.9 | 44.0 | 49.8 | 48.2 | 43.2 | 37.1 | 31.0 | 27.9 | 40.6 |
| Year Lowest Occurred | 1963 | 1989 | 1969 | 1970 | 1977 | 1976 | 1977 | 1980 | 1965 | 1974 | 1978 | 1990 | 1964 |
| Mean Precipitation (in.) | 4.82 | 3.42 | 3.46 | 1.99 | 1.24 | 0.63 | 0.29 | 0.63 | 1.10 | 2.35 | 5.38 | 5.56 | 30.87 |
| Highest Precipitation (in.) | 9.81 | 9.27 | 6.85 | 4.19 | 4.75 | 1.50 | 1.49 | 3.08 | 4.51 | 8.36 | 15.26 | 15.55 | 47.89 |
| Year Highest Occurred | 1974 | 1983 | 1983 | 1979 | 1963 | 1988 | 1987 | 1983 | 1986 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.79 | 0.49 | 0.25 | 0.67 | 0.20 | 0.10 | 0.00 | 0.00 | 0.00 | 0.03 | 0.31 | 0.83 | 17.30 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1990 | 1966 | 1977 | 1988 | 1986 | 1987 | 1987 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 750. | 566. | 539. | 429. | 270. | 106. | 24. | 37. | 116. | 307. | 555. | 741. | 4440. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 40. | 111. | 123. | 41. | 0. | 0. | 0. | 315. |