| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 36.4 | 45.0 | 52.7 | 62.0 | 73.0 | 84.5 | 94.1 | 91.1 | 79.6 | 65.7 | 50.1 | 37.7 | 64.3 |
| Highest Mean Max. Temperature (F) | 46.1 | 51.4 | 61.0 | 71.2 | 79.5 | 92.3 | 100.8 | 96.0 | 88.0 | 76.1 | 56.1 | 47.5 | 68.0 |
| Year Highest Occurred | 1990 | 1970 | 1989 | 1989 | 1969 | 1974 | 1989 | 1981 | 1979 | 1988 | 1989 | 1977 | 1989 |
| Lowest Mean Max. Temperature (F) | 24.7 | 29.3 | 45.8 | 53.0 | 67.0 | 75.2 | 90.3 | 82.0 | 72.5 | 58.5 | 43.0 | 29.6 | 60.2 |
| Year Lowest Occurred | 1984 | 1984 | 1964 | 1975 | 1965 | 1963 | 1962 | 1968 | 1965 | 1984 | 1961 | 1985 | 1984 |
| Mean Temperature (F) | 25.6 | 33.8 | 40.6 | 48.6 | 58.5 | 68.8 | 78.0 | 75.1 | 63.8 | 50.8 | 38.3 | 27.3 | 50.8 |
| Highest Mean Temperature (F) | 34.9 | 41.2 | 47.7 | 54.8 | 64.2 | 74.4 | 81.0 | 78.9 | 69.5 | 57.7 | 45.4 | 35.5 | 53.6 |
| Year Highest Occurred | 1978 | 1986 | 1978 | 1989 | 1969 | 1961 | 1989 | 1986 | 1979 | 1963 | 1965 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 15.0 | 18.3 | 34.8 | 41.5 | 53.0 | 63.1 | 74.8 | 69.1 | 58.0 | 46.2 | 32.8 | 17.2 | 47.4 |
| Year Lowest Occurred | 1984 | 1984 | 1964 | 1975 | 1975 | 1967 | 1987 | 1968 | 1970 | 1984 | 1979 | 1990 | 1984 |
| Mean Min. Temperature (F) | 14.8 | 22.6 | 28.4 | 35.2 | 44.1 | 53.1 | 61.8 | 59.2 | 47.9 | 35.9 | 26.3 | 16.8 | 37.2 |
| Highest Mean Min. Temperature (F) | 26.8 | 31.6 | 36.4 | 40.4 | 48.9 | 59.2 | 65.9 | 64.4 | 53.5 | 43.7 | 34.8 | 27.6 | 40.4 |
| Year Highest Occurred | 1978 | 1986 | 1978 | 1981 | 1969 | 1961 | 1966 | 1963 | 1963 | 1963 | 1965 | 1973 | 1981 |
| Lowest Mean Min. Temperature (F) | 0.4 | 7.2 | 21.5 | 29.2 | 38.9 | 47.9 | 56.7 | 52.6 | 41.6 | 32.0 | 20.5 | 1.2 | 34.0 |
| Year Lowest Occurred | 1989 | 1984 | 1977 | 1970 | 1975 | 1975 | 1972 | 1974 | 1974 | 1976 | 1979 | 1990 | 1989 |
| Mean Precipitation (in.) | 0.47 | 0.57 | 0.84 | 0.81 | 1.04 | 0.59 | 0.57 | 0.61 | 0.75 | 0.78 | 0.61 | 0.58 | 8.22 |
| Highest Precipitation (in.) | 1.54 | 1.58 | 2.44 | 2.14 | 2.96 | 2.35 | 1.89 | 1.89 | 3.16 | 2.00 | 1.86 | 2.33 | 15.07 |
| Year Highest Occurred | 1980 | 1980 | 1986 | 1986 | 1982 | 1967 | 1983 | 1983 | 1982 | 1981 | 1973 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.10 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.03 | 0.00 | 3.35 |
| Year Lowest Occurred | 1970 | 1967 | 1971 | 1989 | 1969 | 1983 | 1971 | 1966 | 1979 | 1978 | 1977 | 1986 | 1966 |
| Heating Degree Days (F) | 1221. | 874. | 756. | 492. | 224. | 53. | 0. | 0. | 119. | 440. | 801. | 1169. | 6149. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 23. | 167. | 403. | 316. | 83. | 0. | 0. | 0. | 992. |