| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 35.1 | 43.5 | 53.3 | 62.5 | 71.3 | 79.9 | 87.1 | 86.3 | 77.0 | 64.0 | 46.1 | 36.0 | 61.8 |
| Highest Mean Max. Temperature (F) | 44.2 | 50.9 | 58.8 | 69.7 | 77.4 | 88.9 | 93.8 | 95.9 | 87.3 | 71.5 | 53.3 | 43.2 | 65.1 |
| Year Highest Occurred | 1983 | 1961 | 1986 | 1987 | 1966 | 1961 | 1985 | 1967 | 1967 | 1963 | 1981 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 22.6 | 31.4 | 47.5 | 54.8 | 62.3 | 73.0 | 80.3 | 76.4 | 69.3 | 55.6 | 34.5 | 25.7 | 57.0 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1989 | 1976 | 1989 | 1989 | 1985 | 1990 | 1985 | 1985 | 1989 |
| Mean Temperature (F) | 26.8 | 33.7 | 40.8 | 47.9 | 55.5 | 63.5 | 69.4 | 68.4 | 59.4 | 48.2 | 36.3 | 27.8 | 48.1 |
| Highest Mean Temperature (F) | 36.4 | 41.3 | 46.5 | 54.5 | 59.9 | 70.7 | 74.5 | 76.0 | 67.5 | 54.7 | 41.5 | 35.5 | 50.9 |
| Year Highest Occurred | 1981 | 1961 | 1986 | 1987 | 1971 | 1961 | 1961 | 1961 | 1963 | 1963 | 1983 | 1962 | 1961 |
| Lowest Mean Temperature (F) | 11.7 | 22.9 | 36.5 | 40.4 | 48.5 | 58.2 | 63.2 | 60.6 | 55.0 | 42.4 | 23.9 | 18.7 | 44.7 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1982 | 1989 | 1976 | 1989 | 1989 | 1972 | 1990 | 1985 | 1990 | 1989 |
| Mean Min. Temperature (F) | 18.4 | 23.9 | 28.2 | 33.2 | 39.7 | 47.1 | 51.6 | 50.5 | 41.7 | 32.3 | 26.5 | 19.6 | 34.4 |
| Highest Mean Min. Temperature (F) | 29.7 | 31.7 | 34.2 | 39.2 | 44.4 | 52.5 | 56.4 | 56.5 | 48.3 | 39.0 | 32.8 | 27.8 | 36.9 |
| Year Highest Occurred | 1981 | 1961 | 1986 | 1987 | 1972 | 1961 | 1975 | 1961 | 1963 | 1988 | 1965 | 1962 | 1961 |
| Lowest Mean Min. Temperature (F) | 0.7 | 14.4 | 21.4 | 21.7 | 34.7 | 42.1 | 46.1 | 44.4 | 35.4 | 26.2 | 13.2 | 10.2 | 29.1 |
| Year Lowest Occurred | 1979 | 1989 | 1982 | 1982 | 1989 | 1980 | 1989 | 1980 | 1981 | 1982 | 1985 | 1990 | 1982 |
| Mean Precipitation (in.) | 1.08 | 0.94 | 0.95 | 0.69 | 0.83 | 0.53 | 0.36 | 0.37 | 0.50 | 0.60 | 1.40 | 1.63 | 9.88 |
| Highest Precipitation (in.) | 3.17 | 2.33 | 2.10 | 1.88 | 1.96 | 1.53 | 1.38 | 1.61 | 1.40 | 1.74 | 3.41 | 2.79 | 14.70 |
| Year Highest Occurred | 1970 | 1983 | 1983 | 1978 | 1961 | 1967 | 1990 | 1990 | 1986 | 1990 | 1973 | 1973 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.04 | 0.02 | 0.07 | 0.08 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.26 | 5.32 |
| Year Lowest Occurred | 1963 | 1988 | 1965 | 1977 | 1966 | 1989 | 1988 | 1986 | 1989 | 1987 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 1184. | 876. | 750. | 513. | 304. | 121. | 40. | 67. | 206. | 521. | 861. | 1153. | 6596. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 10. | 76. | 176. | 173. | 38. | 0. | 0. | 0. | 473. |