| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.0 | 41.9 | 46.2 | 55.1 | 64.5 | 74.3 | 84.9 | 83.8 | 74.2 | 63.4 | 47.2 | 38.6 | 59.3 |
| Highest Mean Max. Temperature (F) | 47.5 | 50.0 | 54.7 | 66.7 | 73.3 | 82.8 | 89.5 | 89.6 | 80.9 | 73.9 | 56.4 | 49.5 | 61.3 |
| Year Highest Occurred | 1981 | 1963 | 1978 | 1987 | 1966 | 1974 | 1961 | 1969 | 1979 | 1988 | 1976 | 1962 | 1981 |
| Lowest Mean Max. Temperature (F) | 31.1 | 35.6 | 40.7 | 43.6 | 56.9 | 66.5 | 79.4 | 74.6 | 64.7 | 53.3 | 39.6 | 31.6 | 55.7 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1975 | 1977 | 1963 | 1982 | 1968 | 1986 | 1984 | 1985 | 1971 | 1982 |
| Mean Temperature (F) | 23.6 | 27.8 | 32.3 | 39.3 | 47.2 | 55.2 | 62.3 | 60.8 | 52.1 | 42.8 | 32.9 | 24.6 | 41.7 |
| Highest Mean Temperature (F) | 31.8 | 35.0 | 40.0 | 45.0 | 52.4 | 60.2 | 65.5 | 64.8 | 57.1 | 48.5 | 37.0 | 32.5 | 43.9 |
| Year Highest Occurred | 1981 | 1968 | 1986 | 1990 | 1969 | 1977 | 1985 | 1971 | 1967 | 1988 | 1981 | 1977 | 1986 |
| Lowest Mean Temperature (F) | 16.0 | 19.0 | 24.1 | 31.7 | 43.1 | 50.3 | 58.5 | 56.6 | 46.0 | 38.2 | 27.3 | 16.2 | 39.0 |
| Year Lowest Occurred | 1985 | 1964 | 1964 | 1963 | 1965 | 1963 | 1962 | 1968 | 1965 | 1969 | 1961 | 1990 | 1964 |
| Mean Min. Temperature (F) | 9.1 | 13.6 | 18.2 | 23.3 | 29.8 | 36.0 | 39.7 | 37.8 | 29.9 | 22.2 | 18.5 | 10.5 | 24.1 |
| Highest Mean Min. Temperature (F) | 19.5 | 22.4 | 26.9 | 27.5 | 36.8 | 40.7 | 44.9 | 44.6 | 36.0 | 26.9 | 25.8 | 21.0 | 27.9 |
| Year Highest Occurred | 1983 | 1986 | 1983 | 1986 | 1987 | 1977 | 1985 | 1983 | 1982 | 1975 | 1973 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | -2.1 | 0.8 | 7.5 | 14.9 | 25.2 | 31.3 | 33.0 | 33.6 | 21.3 | 13.1 | 9.2 | -0.1 | 19.6 |
| Year Lowest Occurred | 1963 | 1964 | 1964 | 1963 | 1965 | 1962 | 1962 | 1964 | 1964 | 1961 | 1961 | 1990 | 1964 |
| Mean Precipitation (in.) | 1.30 | 1.07 | 1.17 | 1.02 | 1.58 | 1.25 | 0.53 | 0.59 | 0.86 | 0.98 | 1.47 | 1.40 | 13.22 |
| Highest Precipitation (in.) | 3.79 | 4.06 | 3.06 | 2.43 | 4.17 | 5.62 | 2.43 | 3.81 | 3.05 | 3.29 | 3.87 | 4.41 | 19.56 |
| Year Highest Occurred | 1970 | 1986 | 1989 | 1963 | 1987 | 1963 | 1984 | 1968 | 1976 | 1975 | 1988 | 1983 | 1970 |
| Lowest Precipitation (in.) | 0.09 | 0.19 | 0.40 | 0.01 | 0.00 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.30 | 0.00 | 7.23 |
| Year Lowest Occurred | 1961 | 1967 | 1969 | 1961 | 1974 | 1974 | 1988 | 1972 | 1987 | 1988 | 1961 | 1962 | 1966 |
| Heating Degree Days (F) | 1283. | 1042. | 1014. | 771. | 552. | 299. | 111. | 154. | 391. | 688. | 963. | 1252. | 8520. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 27. | 24. | 0. | 0. | 0. | 0. | 51. |