| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 23.8 | 28.1 | 39.4 | 55.0 | 68.6 | 77.3 | 82.4 | 79.0 | 69.3 | 58.4 | 41.5 | 27.4 | 54.2 |
| Highest Mean Max. Temperature (F) | 34.0 | 36.0 | 49.5 | 61.7 | 77.9 | 83.6 | 86.4 | 85.1 | 72.6 | 70.7 | 48.3 | 34.8 | 57.2 |
| Year Highest Occurred | 1990 | 1961 | 1968 | 1987 | 1977 | 1988 | 1976 | 1969 | 1987 | 1963 | 1975 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 14.9 | 20.4 | 32.6 | 48.2 | 60.7 | 69.3 | 77.1 | 75.3 | 65.1 | 52.2 | 35.3 | 17.7 | 51.4 |
| Year Lowest Occurred | 1963 | 1979 | 1965 | 1975 | 1983 | 1969 | 1978 | 1977 | 1965 | 1988 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 11.9 | 15.3 | 27.5 | 42.0 | 54.0 | 63.2 | 68.5 | 65.4 | 56.2 | 46.0 | 31.9 | 17.7 | 41.6 |
| Highest Mean Temperature (F) | 22.0 | 25.6 | 35.9 | 47.9 | 61.1 | 67.6 | 73.5 | 70.7 | 59.6 | 54.1 | 36.8 | 26.2 | 45.8 |
| Year Highest Occurred | 1990 | 1983 | 1973 | 1987 | 1977 | 1987 | 1983 | 1983 | 1978 | 1963 | 1963 | 1965 | 1987 |
| Lowest Mean Temperature (F) | 3.3 | 6.3 | 20.9 | 35.1 | 47.9 | 56.8 | 64.8 | 62.0 | 51.2 | 40.9 | 23.7 | 7.4 | 38.7 |
| Year Lowest Occurred | 1977 | 1979 | 1972 | 1975 | 1967 | 1969 | 1971 | 1967 | 1974 | 1976 | 1976 | 1976 | 1972 |
| Mean Min. Temperature (F) | 0.0 | 2.4 | 15.5 | 29.1 | 39.5 | 49.0 | 54.4 | 51.7 | 43.1 | 33.6 | 22.1 | 7.9 | 29.0 |
| Highest Mean Min. Temperature (F) | 10.6 | 16.5 | 24.7 | 34.1 | 47.4 | 54.0 | 61.1 | 58.2 | 48.5 | 41.8 | 28.5 | 19.1 | 34.3 |
| Year Highest Occurred | 1987 | 1983 | 1973 | 1987 | 1982 | 1987 | 1983 | 1983 | 1978 | 1971 | 1988 | 1987 | 1987 |
| Lowest Mean Min. Temperature (F) | -9.6 | -7.8 | 7.7 | 21.9 | 31.7 | 44.0 | 49.9 | 45.7 | 35.8 | 26.9 | 11.9 | -5.7 | 25.0 |
| Year Lowest Occurred | 1977 | 1979 | 1971 | 1975 | 1961 | 1974 | 1965 | 1976 | 1974 | 1976 | 1976 | 1976 | 1976 |
| Mean Precipitation (in.) | 1.22 | 1.04 | 2.10 | 2.84 | 3.58 | 3.87 | 3.34 | 3.82 | 3.96 | 2.53 | 2.39 | 1.69 | 32.38 |
| Highest Precipitation (in.) | 3.28 | 2.98 | 6.16 | 6.10 | 9.22 | 9.51 | 6.42 | 8.70 | 8.33 | 4.35 | 5.64 | 3.19 | 39.72 |
| Year Highest Occurred | 1967 | 1971 | 1977 | 1967 | 1973 | 1969 | 1982 | 1972 | 1965 | 1969 | 1985 | 1968 | 1985 |
| Lowest Precipitation (in.) | 0.00 | 0.05 | 0.14 | 0.54 | 0.39 | 0.94 | 1.65 | 1.48 | 0.87 | 0.52 | 0.00 | 0.50 | 19.18 |
| Year Lowest Occurred | 1961 | 1969 | 1978 | 1971 | 1988 | 1976 | 1981 | 1977 | 1989 | 1964 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 1646. | 1392. | 1163. | 690. | 360. | 107. | 25. | 65. | 267. | 589. | 993. | 1466. | 8763. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 19. | 53. | 134. | 78. | 0. | 0. | 0. | 0. | 284. |