| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.1 | 47.4 | 57.2 | 65.8 | 75.0 | 83.4 | 91.0 | 90.0 | 79.9 | 65.9 | 50.0 | 40.1 | 65.5 |
| Highest Mean Max. Temperature (F) | 49.2 | 55.4 | 61.2 | 72.5 | 80.0 | 90.6 | 97.4 | 97.1 | 87.0 | 72.1 | 56.4 | 46.7 | 67.8 |
| Year Highest Occurred | 1983 | 1967 | 1990 | 1977 | 1987 | 1961 | 1985 | 1961 | 1990 | 1988 | 1990 | 1973 | 1967 |
| Lowest Mean Max. Temperature (F) | 25.6 | 37.6 | 51.6 | 60.5 | 70.1 | 77.1 | 85.6 | 83.5 | 73.4 | 62.1 | 36.9 | 27.9 | 62.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1984 | 1981 | 1983 | 1968 | 1985 | 1968 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 33.2 | 39.1 | 47.0 | 54.6 | 63.2 | 71.0 | 77.7 | 77.3 | 68.0 | 55.0 | 42.5 | 33.8 | 55.2 |
| Highest Mean Temperature (F) | 40.8 | 45.0 | 50.2 | 60.2 | 66.9 | 76.3 | 82.7 | 83.4 | 73.7 | 59.2 | 47.6 | 40.9 | 57.1 |
| Year Highest Occurred | 1967 | 1967 | 1986 | 1977 | 1987 | 1961 | 1985 | 1967 | 1990 | 1963 | 1990 | 1973 | 1967 |
| Lowest Mean Temperature (F) | 17.8 | 28.1 | 41.9 | 50.0 | 59.1 | 66.2 | 73.8 | 71.9 | 61.4 | 51.0 | 28.1 | 23.0 | 51.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1984 | 1981 | 1983 | 1980 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 26.3 | 30.9 | 36.8 | 43.3 | 51.3 | 58.6 | 64.3 | 64.5 | 55.9 | 44.2 | 35.0 | 27.4 | 44.9 |
| Highest Mean Min. Temperature (F) | 35.9 | 36.0 | 41.0 | 48.3 | 54.0 | 62.6 | 68.2 | 69.7 | 60.8 | 49.4 | 39.0 | 35.0 | 46.6 |
| Year Highest Occurred | 1981 | 1961 | 1968 | 1990 | 1983 | 1986 | 1975 | 1967 | 1967 | 1963 | 1965 | 1973 | 1973 |
| Lowest Mean Min. Temperature (F) | 10.0 | 18.5 | 32.1 | 38.8 | 46.9 | 54.8 | 61.3 | 58.6 | 49.3 | 39.0 | 19.2 | 18.0 | 40.1 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1989 | 1971 | 1989 | 1980 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 0.78 | 0.60 | 0.60 | 0.41 | 0.41 | 0.31 | 0.15 | 0.33 | 0.35 | 0.40 | 1.00 | 1.15 | 6.49 |
| Highest Precipitation (in.) | 2.71 | 1.53 | 1.64 | 1.30 | 1.33 | 1.13 | 1.10 | 1.22 | 1.30 | 1.58 | 2.87 | 2.92 | 11.52 |
| Year Highest Occurred | 1970 | 1961 | 1983 | 1989 | 1972 | 1967 | 1987 | 1977 | 1977 | 1982 | 1983 | 1987 | 1983 |
| Lowest Precipitation (in.) | 0.02 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 3.28 |
| Year Lowest Occurred | 1977 | 1988 | 1968 | 1985 | 1964 | 1986 | 1989 | 1988 | 1990 | 1988 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 986. | 725. | 558. | 319. | 96. | 22. | 0. | 6. | 64. | 310. | 675. | 967. | 4728. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 7. | 40. | 202. | 394. | 387. | 154. | 0. | 0. | 0. | 1184. |