| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.9 | 44.5 | 53.3 | 63.3 | 72.9 | 83.5 | 92.3 | 90.2 | 79.8 | 67.3 | 51.2 | 39.2 | 64.6 |
| Highest Mean Max. Temperature (F) | 43.7 | 52.1 | 62.1 | 71.6 | 80.5 | 90.1 | 95.8 | 95.0 | 87.5 | 76.4 | 57.3 | 45.8 | 66.7 |
| Year Highest Occurred | 1983 | 1970 | 1986 | 1987 | 1969 | 1961 | 1988 | 1967 | 1979 | 1988 | 1967 | 1981 | 1981 |
| Lowest Mean Max. Temperature (F) | 29.7 | 34.9 | 44.1 | 55.1 | 66.8 | 77.0 | 87.4 | 83.3 | 71.4 | 59.7 | 45.2 | 31.4 | 61.7 |
| Year Lowest Occurred | 1984 | 1989 | 1964 | 1975 | 1977 | 1967 | 1987 | 1968 | 1965 | 1984 | 1985 | 1990 | 1984 |
| Mean Temperature (F) | 28.9 | 34.5 | 42.4 | 51.0 | 60.0 | 69.6 | 77.8 | 75.8 | 65.8 | 54.4 | 41.3 | 30.6 | 52.7 |
| Highest Mean Temperature (F) | 35.1 | 41.7 | 51.4 | 58.2 | 66.5 | 75.9 | 81.6 | 79.7 | 72.6 | 63.3 | 47.5 | 36.9 | 54.7 |
| Year Highest Occurred | 1983 | 1970 | 1986 | 1987 | 1969 | 1988 | 1989 | 1967 | 1990 | 1988 | 1965 | 1977 | 1987 |
| Lowest Mean Temperature (F) | 22.1 | 24.8 | 32.5 | 45.2 | 54.7 | 64.4 | 74.9 | 69.4 | 58.7 | 48.0 | 35.9 | 22.4 | 49.4 |
| Year Lowest Occurred | 1962 | 1964 | 1964 | 1975 | 1975 | 1963 | 1982 | 1968 | 1965 | 1984 | 1985 | 1990 | 1964 |
| Mean Min. Temperature (F) | 19.8 | 24.5 | 31.4 | 38.8 | 47.1 | 55.7 | 63.3 | 61.3 | 51.7 | 41.4 | 31.3 | 22.0 | 40.7 |
| Highest Mean Min. Temperature (F) | 28.0 | 32.2 | 40.6 | 45.7 | 52.4 | 62.0 | 68.2 | 66.0 | 60.4 | 50.2 | 37.8 | 28.8 | 43.7 |
| Year Highest Occurred | 1978 | 1986 | 1986 | 1989 | 1969 | 1988 | 1989 | 1986 | 1990 | 1988 | 1965 | 1977 | 1986 |
| Lowest Mean Min. Temperature (F) | 11.3 | 12.1 | 20.8 | 33.7 | 41.7 | 50.1 | 59.7 | 55.4 | 45.7 | 36.3 | 25.5 | 13.4 | 36.4 |
| Year Lowest Occurred | 1963 | 1964 | 1964 | 1964 | 1975 | 1963 | 1962 | 1968 | 1961 | 1984 | 1979 | 1990 | 1964 |
| Mean Precipitation (in.) | 1.99 | 1.92 | 2.32 | 2.58 | 2.51 | 1.56 | 0.81 | 1.01 | 1.73 | 1.93 | 2.10 | 2.13 | 22.59 |
| Highest Precipitation (in.) | 4.23 | 4.96 | 5.66 | 6.40 | 6.49 | 4.28 | 2.30 | 3.87 | 7.37 | 5.82 | 5.21 | 8.90 | 42.73 |
| Year Highest Occurred | 1980 | 1976 | 1975 | 1986 | 1977 | 1967 | 1984 | 1983 | 1982 | 1981 | 1988 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.18 | 0.19 | 0.15 | 0.10 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 11.68 |
| Year Lowest Occurred | 1961 | 1988 | 1965 | 1987 | 1972 | 1988 | 1971 | 1967 | 1974 | 1978 | 1976 | 1986 | 1966 |
| Heating Degree Days (F) | 1119. | 854. | 701. | 430. | 189. | 43. | 0. | 0. | 100. | 344. | 711. | 1066. | 5557. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 10. | 34. | 181. | 397. | 335. | 124. | 15. | 0. | 0. | 1096. |