| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 43.9 | 46.6 | 48.2 | 52.3 | 58.5 | 65.0 | 71.1 | 71.8 | 66.9 | 58.8 | 48.3 | 43.6 | 56.3 |
| Highest Mean Max. Temperature (F) | 51.1 | 54.1 | 54.9 | 59.3 | 63.6 | 70.6 | 78.3 | 80.7 | 76.2 | 66.5 | 56.1 | 51.3 | 58.9 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1969 | 1987 | 1985 | 1967 | 1974 | 1987 | 1976 | 1962 | 1987 |
| Lowest Mean Max. Temperature (F) | 35.8 | 38.8 | 43.0 | 46.7 | 51.4 | 59.5 | 64.4 | 66.0 | 61.0 | 52.7 | 38.4 | 35.4 | 53.9 |
| Year Lowest Occurred | 1969 | 1989 | 1975 | 1970 | 1962 | 1980 | 1963 | 1975 | 1986 | 1984 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 37.7 | 39.8 | 40.8 | 43.7 | 49.2 | 55.1 | 59.7 | 60.4 | 56.8 | 50.1 | 41.9 | 37.8 | 47.8 |
| Highest Mean Temperature (F) | 44.4 | 47.2 | 45.7 | 49.9 | 53.8 | 59.7 | 64.9 | 66.9 | 63.9 | 55.5 | 48.0 | 43.9 | 49.7 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1989 | 1969 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1962 | 1987 |
| Lowest Mean Temperature (F) | 31.2 | 32.2 | 36.5 | 38.9 | 44.7 | 51.1 | 55.1 | 56.5 | 52.6 | 45.1 | 32.2 | 29.6 | 45.8 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1962 | 1980 | 1963 | 1975 | 1986 | 1984 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 31.5 | 33.0 | 33.3 | 35.1 | 39.8 | 45.1 | 48.3 | 49.1 | 46.5 | 41.3 | 35.4 | 31.9 | 39.2 |
| Highest Mean Min. Temperature (F) | 37.7 | 40.2 | 37.3 | 40.9 | 44.0 | 49.7 | 51.5 | 53.3 | 51.5 | 46.3 | 39.8 | 37.6 | 40.6 |
| Year Highest Occurred | 1981 | 1963 | 1978 | 1989 | 1969 | 1969 | 1990 | 1986 | 1974 | 1988 | 1976 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | 25.7 | 25.6 | 29.9 | 30.7 | 36.7 | 41.9 | 45.8 | 45.6 | 42.0 | 37.5 | 25.9 | 23.8 | 37.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1976 | 1963 | 1973 | 1965 | 1984 | 1985 | 1990 | 1964 |
| Mean Precipitation (in.) | 11.97 | 9.13 | 9.23 | 6.24 | 4.87 | 3.23 | 1.24 | 1.74 | 3.55 | 6.07 | 11.93 | 12.95 | 82.15 |
| Highest Precipitation (in.) | 22.00 | 19.82 | 15.26 | 10.83 | 9.66 | 9.47 | 5.26 | 6.47 | 7.57 | 12.94 | 24.13 | 26.37 | 102.20 |
| Year Highest Occurred | 1970 | 1961 | 1989 | 1972 | 1984 | 1984 | 1983 | 1968 | 1986 | 1967 | 1973 | 1964 | 1971 |
| Lowest Precipitation (in.) | 0.57 | 3.12 | 1.71 | 3.03 | 1.90 | 0.95 | 0.00 | 0.00 | 0.02 | 0.13 | 2.30 | 3.45 | 54.99 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1977 | 1982 | 1979 | 1967 | 1988 | 1975 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 846. | 706. | 750. | 639. | 490. | 301. | 179. | 176. | 264. | 462. | 693. | 843. | 6349. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 15. | 33. | 18. | 0. | 0. | 0. | 66. |