| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.8 | 43.3 | 46.2 | 53.1 | 62.9 | 72.5 | 81.2 | 80.3 | 73.4 | 63.6 | 48.5 | 40.3 | 58.8 |
| Highest Mean Max. Temperature (F) | 48.3 | 51.1 | 53.8 | 64.8 | 70.4 | 80.5 | 86.5 | 86.2 | 81.7 | 76.0 | 57.9 | 49.7 | 62.6 |
| Year Highest Occurred | 1986 | 1988 | 1988 | 1987 | 1973 | 1974 | 1988 | 1988 | 1974 | 1988 | 1976 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 34.3 | 34.6 | 39.6 | 38.1 | 52.8 | 65.8 | 75.5 | 71.8 | 64.4 | 54.1 | 42.1 | 33.0 | 56.1 |
| Year Lowest Occurred | 1979 | 1969 | 1975 | 1967 | 1977 | 1963 | 1983 | 1976 | 1986 | 1984 | 1984 | 1967 | 1983 |
| Mean Temperature (F) | 26.8 | 29.8 | 33.4 | 39.1 | 47.0 | 54.8 | 61.2 | 60.4 | 54.4 | 46.1 | 35.3 | 27.8 | 43.0 |
| Highest Mean Temperature (F) | 36.1 | 38.3 | 40.1 | 47.0 | 52.3 | 60.2 | 66.3 | 65.3 | 58.8 | 53.8 | 39.8 | 34.5 | 45.9 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1987 | 1973 | 1985 | 1988 | 1988 | 1987 | 1988 | 1976 | 1981 | 1988 |
| Lowest Mean Temperature (F) | 22.0 | 22.7 | 27.5 | 28.1 | 40.0 | 50.6 | 56.6 | 53.7 | 48.7 | 40.7 | 29.7 | 20.0 | 40.9 |
| Year Lowest Occurred | 1972 | 1966 | 1962 | 1967 | 1977 | 1967 | 1983 | 1976 | 1986 | 1984 | 1964 | 1967 | 1975 |
| Mean Min. Temperature (F) | 13.8 | 16.2 | 20.6 | 25.1 | 31.0 | 37.1 | 41.2 | 40.5 | 35.2 | 28.4 | 22.0 | 15.3 | 27.2 |
| Highest Mean Min. Temperature (F) | 23.9 | 25.5 | 28.1 | 29.7 | 35.5 | 42.2 | 46.1 | 44.5 | 40.1 | 32.9 | 26.9 | 24.5 | 30.1 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1990 | 1984 | 1985 | 1988 | 1977 | 1963 | 1963 | 1970 | 1981 | 1986 |
| Lowest Mean Min. Temperature (F) | 5.9 | 6.6 | 13.0 | 17.4 | 27.2 | 32.1 | 37.5 | 35.5 | 29.6 | 24.4 | 14.6 | 6.8 | 25.0 |
| Year Lowest Occurred | 1962 | 1966 | 1962 | 1975 | 1977 | 1976 | 1963 | 1975 | 1973 | 1976 | 1961 | 1990 | 1975 |
| Mean Precipitation (in.) | 5.55 | 4.67 | 4.25 | 2.11 | 1.15 | 0.80 | 0.44 | 0.57 | 0.91 | 1.85 | 4.42 | 4.94 | 31.66 |
| Highest Precipitation (in.) | 19.69 | 19.02 | 11.41 | 7.66 | 3.09 | 2.62 | 2.10 | 3.04 | 4.05 | 8.53 | 13.05 | 19.37 | 52.89 |
| Year Highest Occurred | 1969 | 1986 | 1967 | 1963 | 1977 | 1969 | 1974 | 1965 | 1982 | 1962 | 1983 | 1964 | 1982 |
| Lowest Precipitation (in.) | 0.44 | 0.09 | 0.26 | 0.15 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.01 | 0.42 | 0.00 | 16.04 |
| Year Lowest Occurred | 1984 | 1988 | 1988 | 1977 | 1976 | 1974 | 1989 | 1987 | 1974 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 1184. | 986. | 980. | 777. | 558. | 313. | 143. | 174. | 324. | 586. | 891. | 1153. | 8069. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 7. | 25. | 31. | 6. | 0. | 0. | 0. | 69. |