| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 43.2 | 49.8 | 56.2 | 62.8 | 71.2 | 79.8 | 87.4 | 87.0 | 78.4 | 66.5 | 51.4 | 43.2 | 64.7 |
| Highest Mean Max. Temperature (F) | 49.5 | 56.7 | 61.4 | 70.9 | 78.8 | 86.1 | 93.2 | 94.4 | 85.8 | 76.8 | 57.7 | 50.1 | 67.1 |
| Year Highest Occurred | 1967 | 1988 | 1986 | 1977 | 1969 | 1986 | 1985 | 1971 | 1967 | 1988 | 1989 | 1980 | 1990 |
| Lowest Mean Max. Temperature (F) | 27.8 | 38.6 | 51.2 | 54.8 | 64.1 | 73.2 | 81.1 | 80.9 | 70.4 | 60.3 | 40.5 | 29.2 | 62.3 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1967 | 1962 | 1980 | 1983 | 1976 | 1985 | 1970 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 33.4 | 38.1 | 42.2 | 46.9 | 54.1 | 61.5 | 66.9 | 66.4 | 58.9 | 49.5 | 40.2 | 33.5 | 49.3 |
| Highest Mean Temperature (F) | 40.7 | 43.7 | 47.7 | 53.2 | 60.4 | 66.5 | 71.0 | 71.3 | 63.9 | 56.7 | 43.3 | 39.8 | 50.8 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1987 | 1969 | 1986 | 1985 | 1971 | 1990 | 1988 | 1983 | 1973 | 1987 |
| Lowest Mean Temperature (F) | 16.2 | 26.0 | 38.1 | 41.4 | 49.9 | 57.3 | 61.8 | 62.3 | 53.7 | 45.2 | 29.3 | 21.1 | 46.9 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1970 | 1962 | 1976 | 1963 | 1975 | 1965 | 1970 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 23.6 | 26.3 | 28.2 | 31.0 | 36.9 | 43.2 | 46.4 | 45.7 | 39.2 | 32.3 | 28.8 | 23.7 | 33.8 |
| Highest Mean Min. Temperature (F) | 31.8 | 33.6 | 34.2 | 37.3 | 42.0 | 48.7 | 49.7 | 51.8 | 44.2 | 37.6 | 33.9 | 31.6 | 35.8 |
| Year Highest Occurred | 1967 | 1961 | 1983 | 1989 | 1969 | 1969 | 1975 | 1977 | 1963 | 1975 | 1983 | 1973 | 1986 |
| Lowest Mean Min. Temperature (F) | 4.6 | 13.3 | 21.5 | 25.8 | 31.0 | 38.3 | 41.3 | 41.1 | 33.0 | 28.2 | 18.0 | 13.0 | 31.2 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1964 | 1964 | 1962 | 1963 | 1964 | 1965 | 1974 | 1985 | 1985 | 1964 |
| Mean Precipitation (in.) | 1.36 | 0.88 | 0.84 | 0.71 | 0.77 | 0.78 | 0.44 | 0.54 | 0.54 | 0.68 | 1.48 | 1.40 | 10.42 |
| Highest Precipitation (in.) | 3.36 | 3.09 | 2.24 | 2.23 | 2.37 | 4.56 | 2.70 | 1.96 | 1.94 | 2.21 | 4.29 | 5.05 | 18.04 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1978 | 1962 | 1969 | 1987 | 1976 | 1973 | 1979 | 1984 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.14 | 0.02 | 0.04 | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 0.05 | 5.89 |
| Year Lowest Occurred | 1985 | 1964 | 1977 | 1966 | 1964 | 1973 | 1988 | 1988 | 1990 | 1988 | 1990 | 1976 | 1967 |
| Heating Degree Days (F) | 980. | 753. | 707. | 543. | 338. | 145. | 41. | 66. | 211. | 481. | 744. | 977. | 5986. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 40. | 100. | 109. | 28. | 0. | 0. | 0. | 277. |