| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 41.5 | 46.8 | 52.0 | 58.2 | 65.1 | 70.2 | 75.1 | 75.8 | 70.3 | 60.3 | 48.2 | 41.9 | 58.8 |
| Highest Mean Max. Temperature (F) | 49.0 | 54.6 | 58.3 | 62.6 | 70.9 | 76.2 | 83.2 | 84.2 | 78.4 | 67.3 | 53.0 | 46.0 | 60.8 |
| Year Highest Occurred | 1981 | 1963 | 1981 | 1980 | 1969 | 1967 | 1985 | 1967 | 1963 | 1987 | 1976 | 1976 | 1987 |
| Lowest Mean Max. Temperature (F) | 32.1 | 41.5 | 46.5 | 53.8 | 59.3 | 64.0 | 69.8 | 69.2 | 63.6 | 55.3 | 39.0 | 36.1 | 56.9 |
| Year Lowest Occurred | 1969 | 1990 | 1971 | 1986 | 1984 | 1981 | 1986 | 1976 | 1978 | 1990 | 1985 | 1990 | 1975 |
| Mean Temperature (F) | 36.2 | 39.8 | 43.5 | 48.4 | 54.6 | 59.8 | 63.6 | 64.3 | 59.7 | 51.7 | 42.7 | 37.2 | 50.1 |
| Highest Mean Temperature (F) | 42.1 | 45.5 | 47.5 | 51.8 | 58.2 | 65.7 | 67.7 | 69.2 | 65.8 | 55.9 | 47.0 | 41.1 | 51.8 |
| Year Highest Occurred | 1981 | 1970 | 1986 | 1962 | 1972 | 1961 | 1985 | 1967 | 1963 | 1965 | 1965 | 1966 | 1987 |
| Lowest Mean Temperature (F) | 28.2 | 33.2 | 39.4 | 44.8 | 50.8 | 55.0 | 60.8 | 60.7 | 56.4 | 48.5 | 32.8 | 31.1 | 48.3 |
| Year Lowest Occurred | 1969 | 1989 | 1976 | 1975 | 1984 | 1981 | 1977 | 1975 | 1972 | 1984 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 31.0 | 32.9 | 35.0 | 38.7 | 44.0 | 49.3 | 52.0 | 52.7 | 49.0 | 43.0 | 37.1 | 32.4 | 41.4 |
| Highest Mean Min. Temperature (F) | 36.1 | 37.5 | 39.6 | 42.5 | 46.6 | 55.4 | 54.9 | 56.5 | 53.2 | 47.5 | 41.1 | 37.6 | 42.8 |
| Year Highest Occurred | 1983 | 1970 | 1968 | 1990 | 1983 | 1961 | 1961 | 1965 | 1963 | 1988 | 1965 | 1966 | 1967 |
| Lowest Mean Min. Temperature (F) | 23.9 | 24.9 | 31.9 | 34.4 | 41.8 | 45.3 | 50.2 | 49.9 | 46.2 | 40.4 | 26.6 | 26.0 | 39.0 |
| Year Lowest Occurred | 1963 | 1989 | 1976 | 1982 | 1965 | 1963 | 1977 | 1973 | 1961 | 1984 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 10.24 | 7.46 | 6.94 | 4.81 | 3.51 | 2.58 | 1.77 | 1.86 | 3.64 | 6.50 | 10.74 | 10.72 | 70.77 |
| Highest Precipitation (in.) | 21.75 | 15.02 | 11.91 | 10.10 | 10.48 | 7.08 | 5.97 | 4.32 | 8.37 | 16.91 | 22.08 | 18.00 | 93.12 |
| Year Highest Occurred | 1971 | 1961 | 1971 | 1981 | 1984 | 1981 | 1983 | 1968 | 1972 | 1967 | 1990 | 1979 | 1990 |
| Lowest Precipitation (in.) | 1.47 | 2.54 | 2.15 | 1.94 | 1.12 | 0.40 | 0.00 | 0.12 | 0.33 | 0.16 | 2.39 | 1.57 | 52.39 |
| Year Lowest Occurred | 1985 | 1962 | 1965 | 1967 | 1970 | 1965 | 1985 | 1981 | 1989 | 1987 | 1979 | 1985 | 1987 |
| Heating Degree Days (F) | 893. | 706. | 667. | 498. | 322. | 176. | 88. | 83. | 179. | 412. | 669. | 862. | 5555. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 20. | 44. | 61. | 20. | 0. | 0. | 0. | 145. |