| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.2 | 38.5 | 42.3 | 49.7 | 59.2 | 68.4 | 77.6 | 76.2 | 67.5 | 56.8 | 40.6 | 32.5 | 53.5 |
| Highest Mean Max. Temperature (F) | 39.3 | 45.5 | 48.3 | 59.2 | 66.9 | 77.4 | 82.5 | 82.9 | 75.8 | 64.8 | 48.2 | 38.2 | 56.0 |
| Year Highest Occurred | 1961 | 1963 | 1986 | 1987 | 1966 | 1961 | 1985 | 1967 | 1967 | 1987 | 1976 | 1962 | 1987 |
| Lowest Mean Max. Temperature (F) | 26.8 | 33.0 | 36.4 | 41.9 | 54.0 | 63.0 | 70.5 | 69.8 | 56.5 | 49.3 | 31.4 | 25.7 | 50.9 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1990 | 1975 | 1986 | 1976 | 1986 | 1984 | 1985 | 1978 | 1982 |
| Mean Temperature (F) | 20.0 | 24.0 | 27.6 | 34.8 | 43.3 | 50.9 | 56.8 | 55.3 | 48.1 | 40.0 | 28.5 | 20.4 | 37.5 |
| Highest Mean Temperature (F) | 25.5 | 30.9 | 33.7 | 41.6 | 47.9 | 56.2 | 62.3 | 59.4 | 53.4 | 46.1 | 33.1 | 26.8 | 39.4 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1987 | 1961 | 1975 | 1983 | 1967 | 1988 | 1976 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 10.2 | 15.0 | 17.8 | 28.9 | 38.8 | 47.3 | 51.1 | 51.2 | 40.5 | 34.4 | 18.9 | 11.8 | 34.7 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1965 | 1975 | 1986 | 1964 | 1965 | 1984 | 1985 | 1978 | 1964 |
| Mean Min. Temperature (F) | 6.8 | 9.4 | 12.9 | 19.9 | 27.4 | 33.4 | 35.9 | 34.4 | 28.7 | 23.2 | 16.4 | 8.1 | 21.4 |
| Highest Mean Min. Temperature (F) | 15.1 | 19.4 | 20.6 | 25.8 | 32.2 | 38.2 | 43.3 | 41.0 | 33.2 | 27.7 | 21.0 | 17.1 | 23.7 |
| Year Highest Occurred | 1967 | 1961 | 1983 | 1990 | 1987 | 1988 | 1975 | 1983 | 1963 | 1988 | 1989 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | -6.5 | -3.0 | -3.6 | 15.1 | 21.9 | 28.3 | 31.4 | 30.6 | 21.9 | 17.9 | 6.3 | -2.2 | 17.1 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1966 | 1966 | 1965 | 1962 | 1964 | 1965 | 1978 | 1985 | 1990 | 1965 |
| Mean Precipitation (in.) | 3.21 | 2.07 | 2.77 | 2.14 | 2.41 | 2.63 | 1.17 | 1.38 | 1.73 | 2.09 | 2.65 | 2.85 | 27.10 |
| Highest Precipitation (in.) | 8.68 | 4.86 | 6.12 | 3.85 | 4.64 | 6.16 | 3.01 | 3.77 | 4.49 | 6.36 | 6.46 | 7.71 | 36.18 |
| Year Highest Occurred | 1965 | 1972 | 1967 | 1967 | 1962 | 1963 | 1983 | 1965 | 1970 | 1962 | 1973 | 1964 | 1964 |
| Lowest Precipitation (in.) | 0.52 | 0.59 | 0.60 | 0.43 | 0.69 | 0.63 | 0.00 | 0.00 | 0.10 | 0.00 | 0.54 | 0.10 | 15.69 |
| Year Lowest Occurred | 1985 | 1989 | 1965 | 1977 | 1967 | 1990 | 1969 | 1970 | 1990 | 1987 | 1987 | 1986 | 1987 |
| Heating Degree Days (F) | 1395. | 1148. | 1159. | 906. | 673. | 423. | 259. | 306. | 507. | 775. | 1095. | 1383. | 10029. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 5. | 0. | 0. | 0. | 0. | 5. |