| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.5 | 38.5 | 45.3 | 53.9 | 63.1 | 71.3 | 78.6 | 78.1 | 67.3 | 55.0 | 42.5 | 35.5 | 55.3 |
| Highest Mean Max. Temperature (F) | 40.4 | 43.8 | 49.3 | 59.5 | 67.6 | 76.9 | 86.5 | 86.3 | 75.5 | 61.6 | 45.7 | 45.4 | 57.9 |
| Year Highest Occurred | 1983 | 1961 | 1986 | 1980 | 1987 | 1986 | 1985 | 1967 | 1967 | 1979 | 1981 | 1979 | 1967 |
| Lowest Mean Max. Temperature (F) | 25.5 | 30.1 | 40.0 | 48.8 | 57.4 | 64.3 | 70.3 | 70.4 | 61.6 | 50.9 | 32.3 | 27.9 | 52.9 |
| Year Lowest Occurred | 1979 | 1989 | 1962 | 1975 | 1962 | 1981 | 1983 | 1964 | 1971 | 1970 | 1985 | 1983 | 1964 |
| Mean Temperature (F) | 27.4 | 30.9 | 35.7 | 42.5 | 50.4 | 58.0 | 63.3 | 62.5 | 53.4 | 43.5 | 35.4 | 28.9 | 44.3 |
| Highest Mean Temperature (F) | 34.3 | 36.9 | 39.9 | 46.8 | 54.2 | 62.4 | 68.3 | 67.6 | 59.6 | 48.1 | 39.7 | 34.8 | 46.1 |
| Year Highest Occurred | 1983 | 1961 | 1986 | 1987 | 1987 | 1974 | 1985 | 1961 | 1967 | 1988 | 1983 | 1979 | 1967 |
| Lowest Mean Temperature (F) | 15.6 | 21.5 | 29.7 | 38.7 | 47.4 | 53.5 | 58.2 | 57.4 | 49.3 | 40.4 | 25.2 | 21.8 | 42.3 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1962 | 1981 | 1983 | 1964 | 1971 | 1970 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 20.3 | 23.3 | 26.1 | 31.1 | 37.7 | 44.7 | 48.0 | 46.9 | 39.5 | 31.8 | 28.2 | 22.2 | 33.3 |
| Highest Mean Min. Temperature (F) | 28.6 | 30.0 | 30.6 | 35.2 | 40.8 | 48.4 | 54.0 | 51.4 | 43.7 | 36.6 | 33.8 | 28.6 | 35.2 |
| Year Highest Occurred | 1981 | 1961 | 1987 | 1990 | 1987 | 1974 | 1975 | 1961 | 1990 | 1988 | 1983 | 1973 | 1988 |
| Lowest Mean Min. Temperature (F) | 5.6 | 12.8 | 18.9 | 26.8 | 34.6 | 41.6 | 44.8 | 42.0 | 36.3 | 27.3 | 18.0 | 14.2 | 31.2 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1982 | 1962 | 1969 | 1987 | 1983 | 1974 | 1985 | 1978 | 1979 |
| Mean Precipitation (in.) | 3.03 | 2.39 | 2.04 | 1.75 | 2.08 | 1.91 | 0.98 | 1.22 | 1.39 | 1.80 | 3.12 | 3.40 | 25.11 |
| Highest Precipitation (in.) | 5.81 | 5.14 | 3.63 | 4.56 | 4.39 | 4.69 | 3.75 | 4.12 | 5.15 | 4.62 | 5.55 | 6.46 | 33.14 |
| Year Highest Occurred | 1974 | 1979 | 1982 | 1982 | 1980 | 1971 | 1983 | 1978 | 1968 | 1975 | 1983 | 1980 | 1980 |
| Lowest Precipitation (in.) | 0.16 | 0.41 | 0.19 | 0.35 | 0.65 | 0.54 | 0.00 | 0.00 | 0.00 | 0.07 | 0.74 | 0.75 | 19.32 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1977 | 1983 | 1978 | 1973 | 1969 | 1990 | 1974 | 1976 | 1976 | 1967 |
| Heating Degree Days (F) | 1166. | 955. | 908. | 675. | 453. | 221. | 105. | 126. | 352. | 667. | 888. | 1119. | 7635. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 11. | 52. | 48. | 0. | 0. | 0. | 0. | 111. |