| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.3 | 52.0 | 56.1 | 61.3 | 68.0 | 75.2 | 82.1 | 82.9 | 77.3 | 66.7 | 52.3 | 45.5 | 63.8 |
| Highest Mean Max. Temperature (F) | 53.2 | 59.2 | 63.2 | 70.8 | 73.3 | 81.9 | 88.8 | 91.5 | 86.1 | 77.3 | 59.9 | 50.7 | 66.1 |
| Year Highest Occurred | 1961 | 1968 | 1986 | 1987 | 1969 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1962 | 1987 |
| Lowest Mean Max. Temperature (F) | 40.4 | 45.6 | 49.5 | 54.6 | 62.3 | 68.0 | 74.6 | 76.6 | 69.8 | 60.2 | 44.4 | 37.4 | 61.7 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1977 | 1980 | 1989 | 1976 | 1986 | 1984 | 1985 | 1990 | 1989 |
| Mean Temperature (F) | 38.0 | 41.7 | 44.8 | 49.1 | 54.8 | 61.2 | 65.9 | 66.2 | 60.9 | 52.8 | 43.6 | 38.1 | 51.4 |
| Highest Mean Temperature (F) | 42.7 | 47.0 | 50.1 | 54.3 | 58.7 | 65.9 | 69.7 | 71.1 | 66.4 | 57.3 | 47.6 | 42.6 | 52.6 |
| Year Highest Occurred | 1981 | 1968 | 1978 | 1987 | 1969 | 1961 | 1985 | 1967 | 1963 | 1988 | 1976 | 1977 | 1987 |
| Lowest Mean Temperature (F) | 34.4 | 35.0 | 40.3 | 43.9 | 51.8 | 56.9 | 62.4 | 62.9 | 56.4 | 49.3 | 37.1 | 31.0 | 49.8 |
| Year Lowest Occurred | 1963 | 1989 | 1971 | 1975 | 1977 | 1980 | 1989 | 1975 | 1986 | 1971 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 29.7 | 31.4 | 33.5 | 36.8 | 41.5 | 47.2 | 49.7 | 49.5 | 44.5 | 38.8 | 34.8 | 30.7 | 39.0 |
| Highest Mean Min. Temperature (F) | 35.0 | 36.5 | 37.7 | 40.0 | 44.2 | 52.3 | 52.0 | 53.5 | 50.7 | 43.3 | 38.0 | 36.0 | 40.4 |
| Year Highest Occurred | 1978 | 1961 | 1978 | 1990 | 1987 | 1969 | 1975 | 1990 | 1963 | 1979 | 1965 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | 23.7 | 24.3 | 30.0 | 33.2 | 38.9 | 43.5 | 47.2 | 45.7 | 40.4 | 33.7 | 28.9 | 24.5 | 36.9 |
| Year Lowest Occurred | 1963 | 1989 | 1965 | 1975 | 1964 | 1976 | 1962 | 1980 | 1965 | 1974 | 1978 | 1990 | 1985 |
| Mean Precipitation (in.) | 6.49 | 4.86 | 4.84 | 3.62 | 2.61 | 1.68 | 0.63 | 1.11 | 1.78 | 3.47 | 7.18 | 7.19 | 45.46 |
| Highest Precipitation (in.) | 13.25 | 10.32 | 8.59 | 6.16 | 5.40 | 3.96 | 3.78 | 4.69 | 6.13 | 7.28 | 17.89 | 21.47 | 62.95 |
| Year Highest Occurred | 1964 | 1986 | 1972 | 1979 | 1977 | 1964 | 1987 | 1976 | 1986 | 1984 | 1973 | 1964 | 1964 |
| Lowest Precipitation (in.) | 0.47 | 1.28 | 0.78 | 1.15 | 0.42 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.40 | 1.22 | 29.89 |
| Year Lowest Occurred | 1985 | 1989 | 1965 | 1966 | 1982 | 1987 | 1988 | 1988 | 1987 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 837. | 652. | 626. | 477. | 316. | 140. | 49. | 54. | 155. | 378. | 642. | 834. | 5160. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 26. | 77. | 92. | 32. | 0. | 0. | 0. | 227. |