| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 22.8 | 27.1 | 38.5 | 54.0 | 67.2 | 75.5 | 80.5 | 77.5 | 69.1 | 57.4 | 42.0 | 27.7 | 53.3 |
| Highest Mean Max. Temperature (F) | 34.7 | 37.0 | 49.2 | 60.5 | 76.5 | 82.9 | 86.0 | 83.2 | 72.6 | 68.4 | 49.2 | 35.9 | 57.3 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1987 | 1977 | 1988 | 1988 | 1988 | 1971 | 1963 | 1990 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 12.3 | 18.8 | 29.3 | 47.9 | 58.4 | 65.3 | 74.8 | 73.5 | 65.0 | 52.0 | 36.3 | 17.5 | 51.1 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1983 | 1969 | 1962 | 1967 | 1975 | 1988 | 1976 | 1983 | 1972 |
| Mean Temperature (F) | 14.3 | 18.3 | 30.0 | 44.0 | 55.5 | 64.5 | 69.7 | 67.1 | 59.0 | 48.0 | 34.4 | 20.2 | 43.8 |
| Highest Mean Temperature (F) | 26.5 | 28.3 | 39.5 | 49.1 | 63.4 | 69.0 | 73.4 | 72.3 | 62.7 | 56.8 | 40.0 | 28.2 | 47.6 |
| Year Highest Occurred | 1990 | 1984 | 1973 | 1987 | 1977 | 1987 | 1988 | 1988 | 1978 | 1963 | 1990 | 1965 | 1987 |
| Lowest Mean Temperature (F) | 3.1 | 9.0 | 22.3 | 38.9 | 48.8 | 56.3 | 65.2 | 62.9 | 54.6 | 42.4 | 26.7 | 9.1 | 41.7 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1983 | 1969 | 1962 | 1967 | 1974 | 1988 | 1976 | 1976 | 1972 |
| Mean Min. Temperature (F) | 5.8 | 9.5 | 21.4 | 33.9 | 43.7 | 53.5 | 58.9 | 56.8 | 48.8 | 38.5 | 26.8 | 12.5 | 34.2 |
| Highest Mean Min. Temperature (F) | 18.2 | 21.7 | 31.4 | 37.6 | 50.5 | 58.1 | 62.3 | 61.5 | 53.5 | 46.5 | 30.7 | 22.1 | 38.2 |
| Year Highest Occurred | 1990 | 1984 | 1973 | 1987 | 1982 | 1971 | 1983 | 1973 | 1978 | 1971 | 1990 | 1982 | 1973 |
| Lowest Mean Min. Temperature (F) | -6.1 | -0.9 | 15.1 | 29.8 | 38.0 | 47.3 | 55.5 | 52.2 | 42.6 | 32.7 | 17.1 | -1.3 | 31.6 |
| Year Lowest Occurred | 1977 | 1979 | 1978 | 1975 | 1967 | 1969 | 1965 | 1967 | 1974 | 1988 | 1976 | 1976 | 1976 |
| Mean Precipitation (in.) | 1.15 | 1.03 | 2.05 | 2.40 | 2.82 | 3.39 | 3.10 | 3.50 | 3.47 | 2.23 | 2.16 | 1.53 | 28.83 |
| Highest Precipitation (in.) | 2.60 | 2.76 | 4.68 | 4.84 | 8.21 | 10.29 | 6.03 | 9.04 | 7.80 | 4.92 | 4.96 | 3.15 | 38.36 |
| Year Highest Occurred | 1969 | 1981 | 1977 | 1968 | 1973 | 1990 | 1978 | 1975 | 1965 | 1984 | 1985 | 1971 | 1985 |
| Lowest Precipitation (in.) | 0.12 | 0.04 | 0.31 | 0.49 | 0.06 | 0.31 | 0.83 | 1.05 | 0.28 | 0.36 | 0.16 | 0.48 | 17.85 |
| Year Lowest Occurred | 1981 | 1969 | 1978 | 1989 | 1988 | 1976 | 1981 | 1989 | 1976 | 1975 | 1976 | 1986 | 1976 |
| Heating Degree Days (F) | 1572. | 1308. | 1085. | 630. | 318. | 93. | 17. | 43. | 189. | 527. | 918. | 1389. | 8089. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 23. | 78. | 163. | 108. | 9. | 0. | 0. | 0. | 381. |