| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 50.2 | 50.5 | 51.6 | 57.1 | 65.8 | 75.0 | 83.5 | 82.0 | 76.4 | 66.7 | 55.3 | 49.5 | 63.6 |
| Highest Mean Max. Temperature (F) | 58.3 | 57.4 | 60.5 | 66.1 | 72.3 | 80.9 | 88.1 | 88.3 | 83.0 | 76.0 | 62.4 | 57.8 | 65.7 |
| Year Highest Occurred | 1984 | 1970 | 1972 | 1987 | 1973 | 1981 | 1972 | 1967 | 1974 | 1964 | 1967 | 1980 | 1966 |
| Lowest Mean Max. Temperature (F) | 42.6 | 42.5 | 43.7 | 46.3 | 55.1 | 67.6 | 78.0 | 72.8 | 64.8 | 56.5 | 47.2 | 40.8 | 59.7 |
| Year Lowest Occurred | 1982 | 1969 | 1982 | 1983 | 1971 | 1982 | 1987 | 1976 | 1985 | 1981 | 1983 | 1971 | 1983 |
| Mean Temperature (F) | 39.5 | 40.1 | 41.1 | 45.6 | 52.7 | 60.3 | 67.9 | 66.9 | 61.5 | 53.6 | 43.9 | 38.9 | 51.0 |
| Highest Mean Temperature (F) | 47.3 | 46.1 | 47.3 | 54.0 | 58.6 | 65.9 | 71.1 | 72.7 | 66.9 | 59.0 | 50.0 | 45.6 | 52.5 |
| Year Highest Occurred | 1984 | 1963 | 1972 | 1985 | 1966 | 1981 | 1979 | 1967 | 1975 | 1988 | 1967 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 35.0 | 34.4 | 36.4 | 36.0 | 45.3 | 54.2 | 63.0 | 59.5 | 53.5 | 46.4 | 39.5 | 31.9 | 49.3 |
| Year Lowest Occurred | 1982 | 1969 | 1973 | 1967 | 1977 | 1965 | 1987 | 1976 | 1985 | 1981 | 1973 | 1971 | 1971 |
| Mean Min. Temperature (F) | 28.7 | 29.6 | 30.6 | 34.0 | 39.7 | 45.4 | 52.3 | 51.7 | 46.5 | 40.5 | 32.5 | 28.4 | 38.3 |
| Highest Mean Min. Temperature (F) | 36.2 | 35.1 | 35.9 | 43.1 | 45.3 | 50.8 | 57.8 | 57.1 | 53.5 | 45.0 | 38.0 | 33.6 | 40.5 |
| Year Highest Occurred | 1984 | 1963 | 1978 | 1985 | 1966 | 1981 | 1979 | 1967 | 1975 | 1988 | 1976 | 1979 | 1981 |
| Lowest Mean Min. Temperature (F) | 22.7 | 22.8 | 24.0 | 25.6 | 34.2 | 36.8 | 47.2 | 46.1 | 40.2 | 36.1 | 28.3 | 22.6 | 35.9 |
| Year Lowest Occurred | 1966 | 1966 | 1964 | 1967 | 1977 | 1970 | 1974 | 1976 | 1965 | 1971 | 1964 | 1972 | 1965 |
| Mean Precipitation (in.) | 4.82 | 4.23 | 4.54 | 2.74 | 0.78 | 0.35 | 0.02 | 0.29 | 0.60 | 1.11 | 3.31 | 4.22 | 27.01 |
| Highest Precipitation (in.) | 17.81 | 14.62 | 13.68 | 10.62 | 4.13 | 2.00 | 0.21 | 2.20 | 3.92 | 3.74 | 12.92 | 15.62 | 63.58 |
| Year Highest Occurred | 1980 | 1969 | 1983 | 1967 | 1971 | 1982 | 1969 | 1972 | 1976 | 1974 | 1983 | 1966 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.16 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 7.73 |
| Year Lowest Occurred | 1984 | 1961 | 1972 | 1979 | 1985 | 1989 | 1990 | 1989 | 1988 | 1990 | 1980 | 1989 | 1989 |
| Heating Degree Days (F) | 791. | 697. | 741. | 588. | 389. | 179. | 33. | 57. | 153. | 363. | 633. | 809. | 5433. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 7. | 38. | 123. | 116. | 48. | 9. | 0. | 0. | 347. |