| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.8 | 52.3 | 55.7 | 63.9 | 73.3 | 83.9 | 86.3 | 83.8 | 78.8 | 69.2 | 57.5 | 50.2 | 67.0 |
| Highest Mean Max. Temperature (F) | 57.5 | 58.4 | 67.9 | 74.5 | 81.5 | 90.6 | 90.2 | 88.4 | 85.7 | 75.8 | 64.3 | 58.3 | 70.6 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1984 | 1974 | 1989 | 1962 | 1979 | 1988 | 1981 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 43.4 | 46.3 | 45.1 | 55.9 | 65.4 | 76.3 | 82.5 | 79.4 | 72.6 | 61.9 | 52.6 | 43.1 | 65.0 |
| Year Lowest Occurred | 1979 | 1966 | 1973 | 1975 | 1980 | 1965 | 1986 | 1978 | 1986 | 1971 | 1972 | 1967 | 1982 |
| Mean Temperature (F) | 36.6 | 39.0 | 42.4 | 49.2 | 57.3 | 67.8 | 71.8 | 69.6 | 63.9 | 54.6 | 44.5 | 37.7 | 52.9 |
| Highest Mean Temperature (F) | 43.6 | 44.1 | 50.5 | 57.8 | 64.1 | 73.7 | 74.0 | 73.2 | 68.4 | 60.0 | 49.4 | 46.6 | 55.3 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1984 | 1974 | 1985 | 1969 | 1979 | 1988 | 1977 | 1977 | 1989 |
| Lowest Mean Temperature (F) | 31.7 | 33.2 | 35.8 | 42.1 | 52.0 | 61.0 | 69.2 | 65.6 | 59.6 | 47.9 | 40.6 | 31.3 | 51.4 |
| Year Lowest Occurred | 1979 | 1966 | 1973 | 1975 | 1980 | 1965 | 1986 | 1968 | 1965 | 1971 | 1972 | 1967 | 1975 |
| Mean Min. Temperature (F) | 24.4 | 25.6 | 29.0 | 34.4 | 41.3 | 51.8 | 57.2 | 55.3 | 48.9 | 40.0 | 31.5 | 25.2 | 38.7 |
| Highest Mean Min. Temperature (F) | 30.7 | 30.6 | 34.1 | 41.0 | 46.6 | 57.1 | 59.9 | 58.8 | 53.9 | 46.0 | 36.8 | 38.0 | 41.2 |
| Year Highest Occurred | 1980 | 1980 | 1989 | 1989 | 1984 | 1981 | 1981 | 1969 | 1983 | 1978 | 1977 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 20.0 | 18.7 | 23.7 | 28.3 | 37.9 | 45.7 | 53.2 | 51.1 | 43.9 | 33.9 | 27.3 | 19.3 | 36.5 |
| Year Lowest Occurred | 1979 | 1964 | 1962 | 1975 | 1971 | 1965 | 1987 | 1968 | 1965 | 1971 | 1979 | 1990 | 1975 |
| Mean Precipitation (in.) | 3.03 | 3.11 | 3.45 | 1.23 | 0.57 | 0.46 | 3.32 | 3.88 | 2.35 | 1.19 | 2.48 | 3.46 | 28.53 |
| Highest Precipitation (in.) | 13.54 | 16.63 | 14.52 | 7.73 | 2.80 | 2.49 | 8.18 | 13.09 | 7.01 | 5.06 | 10.20 | 16.21 | 56.42 |
| Year Highest Occurred | 1980 | 1980 | 1978 | 1965 | 1976 | 1973 | 1968 | 1963 | 1970 | 1987 | 1978 | 1967 | 1978 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 16.28 |
| Year Lowest Occurred | 1972 | 1984 | 1984 | 1989 | 1988 | 1989 | 1980 | 1977 | 1973 | 1980 | 1989 | 1981 | 1972 |
| Heating Degree Days (F) | 880. | 728. | 701. | 474. | 250. | 46. | 0. | 7. | 86. | 333. | 615. | 846. | 4966. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 11. | 130. | 213. | 150. | 53. | 11. | 0. | 0. | 568. |