| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 27.4 | 32.3 | 38.7 | 49.0 | 59.5 | 69.1 | 78.8 | 77.5 | 66.7 | 55.5 | 38.2 | 28.1 | 51.7 |
| Highest Mean Max. Temperature (F) | 35.1 | 40.1 | 46.2 | 61.4 | 66.5 | 77.7 | 84.3 | 84.0 | 75.4 | 64.8 | 43.5 | 38.7 | 54.8 |
| Year Highest Occurred | 1981 | 1963 | 1981 | 1987 | 1966 | 1988 | 1985 | 1971 | 1979 | 1988 | 1976 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 11.4 | 19.1 | 30.0 | 39.8 | 54.0 | 63.4 | 74.3 | 71.3 | 55.9 | 46.5 | 27.4 | 16.5 | 49.4 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1978 | 1964 | 1986 | 1968 | 1965 | 1969 | 1985 | 1983 | 1968 |
| Mean Temperature (F) | 14.6 | 18.5 | 24.6 | 34.7 | 44.0 | 52.6 | 58.2 | 56.1 | 47.1 | 38.0 | 25.5 | 15.7 | 35.8 |
| Highest Mean Temperature (F) | 22.8 | 28.3 | 32.7 | 41.0 | 47.7 | 57.9 | 62.2 | 60.4 | 52.2 | 42.7 | 29.9 | 26.9 | 38.4 |
| Year Highest Occurred | 1981 | 1963 | 1981 | 1987 | 1969 | 1988 | 1975 | 1971 | 1990 | 1988 | 1989 | 1980 | 1981 |
| Lowest Mean Temperature (F) | -3.5 | 4.3 | 13.4 | 26.6 | 40.6 | 49.5 | 54.6 | 52.4 | 41.0 | 32.3 | 15.5 | 2.6 | 32.8 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1975 | 1975 | 1986 | 1987 | 1965 | 1969 | 1985 | 1983 | 1985 |
| Mean Min. Temperature (F) | 1.7 | 4.5 | 10.5 | 20.4 | 28.3 | 35.9 | 37.6 | 34.7 | 27.4 | 20.4 | 12.7 | 3.2 | 19.8 |
| Highest Mean Min. Temperature (F) | 11.0 | 18.9 | 19.1 | 26.0 | 33.2 | 39.0 | 44.0 | 40.1 | 32.2 | 27.2 | 18.6 | 15.0 | 22.8 |
| Year Highest Occurred | 1967 | 1961 | 1981 | 1978 | 1980 | 1977 | 1975 | 1983 | 1963 | 1963 | 1989 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -18.3 | -10.5 | -3.2 | 13.3 | 24.2 | 33.1 | 34.2 | 29.0 | 23.1 | 10.6 | 3.2 | -11.3 | 15.9 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1973 | 1978 | 1966 | 1988 | 1987 | 1987 | 1979 | 1983 | 1985 |
| Mean Precipitation (in.) | 0.63 | 0.45 | 0.62 | 0.86 | 1.57 | 1.72 | 1.07 | 1.15 | 1.19 | 0.67 | 0.75 | 0.67 | 11.35 |
| Highest Precipitation (in.) | 1.63 | 1.24 | 1.23 | 2.01 | 4.32 | 3.85 | 3.02 | 2.48 | 2.64 | 2.67 | 1.89 | 2.57 | 15.74 |
| Year Highest Occurred | 1969 | 1986 | 1989 | 1975 | 1981 | 1964 | 1983 | 1968 | 1970 | 1967 | 1962 | 1964 | 1967 |
| Lowest Precipitation (in.) | 0.04 | 0.02 | 0.13 | 0.13 | 0.42 | 0.20 | 0.12 | 0.12 | 0.01 | 0.00 | 0.19 | 0.05 | 5.60 |
| Year Lowest Occurred | 1981 | 1977 | 1969 | 1977 | 1979 | 1974 | 1988 | 1967 | 1987 | 1987 | 1976 | 1976 | 1974 |
| Heating Degree Days (F) | 1562. | 1302. | 1252. | 909. | 651. | 372. | 214. | 280. | 537. | 837. | 1185. | 1528. | 10629. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |