| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 31.6 | 39.4 | 48.3 | 60.1 | 69.0 | 78.6 | 86.6 | 85.5 | 73.2 | 63.0 | 46.0 | 34.4 | 59.6 |
| Highest Mean Max. Temperature (F) | 48.1 | 52.1 | 60.2 | 71.6 | 75.3 | 91.5 | 90.7 | 92.7 | 82.0 | 71.3 | 54.5 | 46.4 | 64.0 |
| Year Highest Occurred | 1981 | 1961 | 1986 | 1987 | 1985 | 1988 | 1966 | 1971 | 1990 | 1963 | 1987 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 11.9 | 24.1 | 35.8 | 49.8 | 63.8 | 72.3 | 81.7 | 78.3 | 58.6 | 52.5 | 26.9 | 16.1 | 54.7 |
| Year Lowest Occurred | 1969 | 1989 | 1965 | 1975 | 1974 | 1967 | 1972 | 1987 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Temperature (F) | 19.2 | 26.3 | 34.5 | 45.3 | 54.6 | 63.4 | 69.8 | 68.1 | 57.0 | 47.0 | 32.6 | 21.8 | 45.0 |
| Highest Mean Temperature (F) | 33.6 | 37.2 | 44.7 | 51.9 | 59.1 | 72.9 | 74.0 | 74.1 | 65.2 | 54.1 | 39.1 | 30.6 | 48.2 |
| Year Highest Occurred | 1986 | 1961 | 1986 | 1987 | 1987 | 1988 | 1966 | 1983 | 1963 | 1963 | 1990 | 1962 | 1987 |
| Lowest Mean Temperature (F) | 0.3 | 12.1 | 22.7 | 37.6 | 51.0 | 59.9 | 65.5 | 63.3 | 47.7 | 40.7 | 15.3 | 2.6 | 40.9 |
| Year Lowest Occurred | 1969 | 1989 | 1965 | 1975 | 1974 | 1982 | 1972 | 1980 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Min. Temperature (F) | 6.6 | 13.2 | 20.7 | 30.4 | 40.1 | 48.2 | 52.9 | 50.7 | 40.7 | 30.9 | 19.1 | 9.1 | 30.2 |
| Highest Mean Min. Temperature (F) | 23.0 | 23.6 | 29.2 | 34.1 | 44.0 | 54.3 | 57.2 | 56.5 | 49.6 | 36.9 | 25.9 | 17.8 | 32.6 |
| Year Highest Occurred | 1986 | 1984 | 1986 | 1978 | 1987 | 1988 | 1966 | 1983 | 1963 | 1963 | 1962 | 1962 | 1961 |
| Lowest Mean Min. Temperature (F) | -11.4 | -1.3 | 9.6 | 25.4 | 36.0 | 45.3 | 48.5 | 46.7 | 36.7 | 24.1 | 3.6 | -11.0 | 26.0 |
| Year Lowest Occurred | 1969 | 1979 | 1965 | 1975 | 1979 | 1975 | 1971 | 1980 | 1965 | 1976 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.63 | 0.47 | 0.81 | 1.55 | 2.44 | 2.26 | 0.95 | 1.25 | 1.55 | 0.99 | 0.65 | 0.63 | 14.18 |
| Highest Precipitation (in.) | 2.04 | 1.58 | 2.45 | 3.81 | 6.57 | 6.04 | 2.81 | 3.71 | 4.75 | 3.08 | 2.14 | 1.95 | 23.05 |
| Year Highest Occurred | 1978 | 1986 | 1985 | 1964 | 1981 | 1969 | 1987 | 1972 | 1961 | 1971 | 1968 | 1989 | 1978 |
| Lowest Precipitation (in.) | 0.02 | 0.00 | 0.15 | 0.04 | 0.50 | 0.47 | 0.00 | 0.05 | 0.04 | 0.00 | 0.03 | 0.00 | 7.83 |
| Year Lowest Occurred | 1987 | 1977 | 1968 | 1962 | 1966 | 1961 | 1964 | 1970 | 1964 | 1987 | 1971 | 1986 | 1979 |
| Heating Degree Days (F) | 1420. | 1084. | 946. | 591. | 322. | 122. | 17. | 54. | 267. | 558. | 972. | 1339. | 7692. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 74. | 166. | 150. | 27. | 0. | 0. | 0. | 417. |