| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 54.6 | 57.5 | 63.2 | 70.3 | 77.3 | 84.3 | 84.3 | 81.8 | 76.7 | 71.2 | 62.2 | 56.0 | 70.0 |
| Highest Mean Max. Temperature (F) | 63.0 | 63.8 | 71.1 | 76.2 | 84.1 | 91.3 | 89.9 | 86.9 | 84.2 | 79.1 | 68.8 | 62.5 | 71.5 |
| Year Highest Occurred | 1986 | 1976 | 1974 | 1989 | 1974 | 1980 | 1980 | 1977 | 1977 | 1979 | 1981 | 1981 | 1977 |
| Lowest Mean Max. Temperature (F) | 48.1 | 49.5 | 55.5 | 62.4 | 73.5 | 79.8 | 79.5 | 76.4 | 70.6 | 63.2 | 54.3 | 50.6 | 68.0 |
| Year Lowest Occurred | 1985 | 1964 | 1969 | 1983 | 1987 | 1984 | 1976 | 1984 | 1974 | 1984 | 1972 | 1982 | 1984 |
| Mean Temperature (F) | 37.6 | 40.4 | 45.7 | 52.7 | 60.1 | 67.8 | 70.1 | 68.2 | 62.5 | 54.4 | 44.9 | 39.0 | 53.6 |
| Highest Mean Temperature (F) | 45.2 | 45.6 | 51.9 | 56.6 | 66.0 | 73.4 | 74.2 | 71.2 | 67.0 | 57.9 | 49.7 | 44.3 | 55.0 |
| Year Highest Occurred | 1969 | 1962 | 1974 | 1972 | 1974 | 1980 | 1980 | 1982 | 1983 | 1979 | 1965 | 1970 | 1972 |
| Lowest Mean Temperature (F) | 33.1 | 32.7 | 39.0 | 46.6 | 57.1 | 64.8 | 66.6 | 65.4 | 59.3 | 48.3 | 38.5 | 34.4 | 51.8 |
| Year Lowest Occurred | 1966 | 1964 | 1969 | 1983 | 1983 | 1962 | 1976 | 1990 | 1974 | 1976 | 1979 | 1989 | 1976 |
| Mean Min. Temperature (F) | 20.6 | 23.3 | 28.2 | 35.1 | 42.8 | 51.1 | 55.9 | 54.6 | 48.3 | 37.4 | 27.5 | 21.9 | 37.2 |
| Highest Mean Min. Temperature (F) | 28.2 | 28.4 | 33.2 | 38.6 | 47.9 | 55.4 | 59.5 | 56.6 | 52.8 | 43.3 | 33.8 | 27.4 | 39.3 |
| Year Highest Occurred | 1969 | 1962 | 1972 | 1985 | 1974 | 1980 | 1969 | 1982 | 1983 | 1983 | 1983 | 1977 | 1972 |
| Lowest Mean Min. Temperature (F) | 15.2 | 15.8 | 22.5 | 30.8 | 38.5 | 47.4 | 51.2 | 51.3 | 44.2 | 31.4 | 21.7 | 15.8 | 35.0 |
| Year Lowest Occurred | 1963 | 1964 | 1969 | 1983 | 1983 | 1962 | 1987 | 1990 | 1988 | 1976 | 1979 | 1989 | 1987 |
| Mean Precipitation (in.) | 0.50 | 0.65 | 0.40 | 0.61 | 1.00 | 1.83 | 2.55 | 3.71 | 3.08 | 1.16 | 0.74 | 0.72 | 16.95 |
| Highest Precipitation (in.) | 1.35 | 1.68 | 1.46 | 3.27 | 3.62 | 12.43 | 7.43 | 7.49 | 10.03 | 5.20 | 2.68 | 3.09 | 34.55 |
| Year Highest Occurred | 1980 | 1981 | 1968 | 1966 | 1986 | 1986 | 1962 | 1984 | 1974 | 1974 | 1961 | 1982 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.40 | 0.55 | 0.07 | 0.00 | 0.00 | 0.00 | 8.84 |
| Year Lowest Occurred | 1984 | 1972 | 1988 | 1989 | 1974 | 1964 | 1987 | 1962 | 1968 | 1982 | 1989 | 1981 | 1964 |
| Heating Degree Days (F) | 849. | 689. | 598. | 369. | 163. | 26. | 8. | 11. | 100. | 329. | 603. | 806. | 4551. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 11. | 110. | 166. | 110. | 25. | 0. | 0. | 0. | 422. |