| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.5 | 50.7 | 56.6 | 61.6 | 68.2 | 75.0 | 80.9 | 81.6 | 75.6 | 64.9 | 53.6 | 46.2 | 63.4 |
| Highest Mean Max. Temperature (F) | 52.3 | 56.9 | 61.8 | 67.8 | 72.8 | 81.0 | 88.6 | 90.3 | 82.7 | 72.2 | 57.8 | 50.8 | 66.2 |
| Year Highest Occurred | 1967 | 1968 | 1986 | 1989 | 1987 | 1987 | 1985 | 1986 | 1967 | 1987 | 1981 | 1974 | 1987 |
| Lowest Mean Max. Temperature (F) | 33.6 | 41.7 | 51.8 | 56.6 | 60.8 | 68.7 | 73.9 | 75.0 | 70.8 | 60.2 | 44.1 | 37.7 | 61.2 |
| Year Lowest Occurred | 1979 | 1989 | 1962 | 1972 | 1962 | 1971 | 1963 | 1976 | 1978 | 1984 | 1985 | 1985 | 1964 |
| Mean Temperature (F) | 39.7 | 43.6 | 47.7 | 51.5 | 57.1 | 63.3 | 67.5 | 68.1 | 62.8 | 54.7 | 46.9 | 40.6 | 53.6 |
| Highest Mean Temperature (F) | 46.1 | 48.6 | 52.2 | 55.7 | 60.5 | 67.1 | 72.3 | 73.4 | 67.2 | 58.3 | 50.3 | 45.3 | 55.3 |
| Year Highest Occurred | 1967 | 1968 | 1986 | 1989 | 1987 | 1986 | 1985 | 1986 | 1974 | 1988 | 1965 | 1973 | 1967 |
| Lowest Mean Temperature (F) | 28.7 | 34.7 | 43.5 | 47.6 | 53.2 | 59.2 | 63.5 | 64.3 | 59.5 | 52.2 | 37.7 | 31.8 | 51.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1964 | 1971 | 1989 | 1964 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 33.9 | 36.5 | 38.7 | 41.3 | 46.0 | 51.5 | 54.2 | 54.4 | 50.0 | 44.5 | 40.1 | 34.9 | 43.8 |
| Highest Mean Min. Temperature (F) | 40.6 | 41.4 | 43.0 | 43.9 | 48.2 | 56.5 | 56.2 | 57.9 | 53.5 | 48.2 | 44.1 | 40.1 | 45.1 |
| Year Highest Occurred | 1981 | 1961 | 1983 | 1990 | 1987 | 1969 | 1990 | 1977 | 1990 | 1979 | 1965 | 1973 | 1981 |
| Lowest Mean Min. Temperature (F) | 23.7 | 27.7 | 34.9 | 37.5 | 42.5 | 48.9 | 47.9 | 50.0 | 43.1 | 40.2 | 31.2 | 25.8 | 40.8 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1964 | 1988 | 1989 | 1988 | 1989 | 1989 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 6.47 | 5.05 | 4.38 | 3.42 | 2.72 | 1.97 | 0.75 | 1.32 | 2.19 | 3.38 | 6.24 | 7.07 | 44.96 |
| Highest Precipitation (in.) | 13.71 | 11.07 | 7.74 | 5.54 | 5.68 | 5.33 | 3.94 | 5.87 | 4.23 | 7.78 | 11.65 | 12.20 | 61.74 |
| Year Highest Occurred | 1970 | 1961 | 1961 | 1963 | 1977 | 1984 | 1983 | 1968 | 1986 | 1990 | 1973 | 1968 | 1968 |
| Lowest Precipitation (in.) | 0.16 | 1.87 | 1.45 | 1.40 | 0.69 | 0.46 | 0.00 | 0.00 | 0.00 | 0.17 | 1.34 | 1.21 | 29.52 |
| Year Lowest Occurred | 1985 | 1964 | 1978 | 1977 | 1982 | 1961 | 1984 | 1986 | 1975 | 1987 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 784. | 599. | 536. | 405. | 247. | 100. | 32. | 39. | 108. | 319. | 543. | 756. | 4468. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 49. | 110. | 135. | 42. | 0. | 0. | 0. | 336. |