| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 44.8 | 49.0 | 52.7 | 58.1 | 64.7 | 70.9 | 77.1 | 77.5 | 72.5 | 62.2 | 50.3 | 44.3 | 60.3 |
| Highest Mean Max. Temperature (F) | 51.0 | 57.3 | 59.8 | 64.1 | 72.2 | 78.0 | 84.4 | 90.5 | 83.3 | 68.9 | 55.8 | 53.3 | 63.6 |
| Year Highest Occurred | 1961 | 1968 | 1986 | 1966 | 1969 | 1967 | 1985 | 1967 | 1967 | 1980 | 1976 | 1979 | 1967 |
| Lowest Mean Max. Temperature (F) | 38.1 | 39.0 | 47.5 | 51.7 | 57.4 | 64.9 | 70.3 | 69.6 | 65.6 | 54.9 | 41.5 | 35.6 | 57.3 |
| Year Lowest Occurred | 1969 | 1989 | 1989 | 1975 | 1962 | 1980 | 1989 | 1989 | 1978 | 1990 | 1985 | 1990 | 1989 |
| Mean Temperature (F) | 37.5 | 40.4 | 42.9 | 46.5 | 52.1 | 57.9 | 62.1 | 62.2 | 57.9 | 50.4 | 42.5 | 37.8 | 49.2 |
| Highest Mean Temperature (F) | 42.0 | 46.2 | 47.9 | 50.5 | 57.0 | 62.2 | 66.3 | 68.6 | 63.0 | 56.0 | 47.9 | 44.0 | 50.6 |
| Year Highest Occurred | 1961 | 1963 | 1986 | 1987 | 1969 | 1967 | 1985 | 1967 | 1967 | 1980 | 1980 | 1979 | 1967 |
| Lowest Mean Temperature (F) | 31.1 | 32.2 | 39.7 | 41.6 | 48.2 | 53.9 | 58.8 | 58.5 | 53.7 | 46.6 | 33.9 | 30.5 | 47.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1976 | 1963 | 1975 | 1972 | 1990 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 30.2 | 31.7 | 33.1 | 34.9 | 39.4 | 44.9 | 47.1 | 46.9 | 43.2 | 38.7 | 34.6 | 31.3 | 38.0 |
| Highest Mean Min. Temperature (F) | 35.2 | 37.3 | 37.8 | 39.9 | 41.7 | 50.2 | 54.6 | 52.5 | 51.2 | 48.1 | 41.8 | 36.5 | 40.6 |
| Year Highest Occurred | 1990 | 1961 | 1983 | 1989 | 1969 | 1969 | 1982 | 1977 | 1982 | 1982 | 1980 | 1977 | 1982 |
| Lowest Mean Min. Temperature (F) | 21.8 | 25.3 | 28.5 | 31.0 | 35.9 | 40.4 | 44.5 | 43.2 | 37.0 | 32.1 | 25.6 | 23.6 | 35.5 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1965 | 1976 | 1962 | 1970 | 1972 | 1972 | 1978 | 1972 | 1985 |
| Mean Precipitation (in.) | 11.47 | 9.06 | 9.10 | 6.37 | 4.78 | 3.21 | 1.15 | 1.73 | 3.12 | 6.02 | 11.58 | 12.09 | 79.68 |
| Highest Precipitation (in.) | 20.22 | 24.51 | 16.22 | 12.62 | 10.09 | 7.80 | 4.58 | 8.24 | 7.28 | 14.28 | 25.27 | 25.78 | 103.05 |
| Year Highest Occurred | 1970 | 1979 | 1961 | 1963 | 1977 | 1984 | 1983 | 1968 | 1971 | 1967 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.82 | 2.59 | 1.79 | 2.08 | 1.74 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 2.25 | 2.63 | 58.50 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1973 | 1982 | 1987 | 1980 | 1988 | 1987 | 1987 | 1976 | 1976 | 1965 |
| Heating Degree Days (F) | 853. | 689. | 685. | 555. | 400. | 223. | 117. | 127. | 226. | 453. | 675. | 843. | 5846. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 10. | 28. | 40. | 13. | 0. | 0. | 0. | 91. |