| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.2 | 40.9 | 47.9 | 56.6 | 64.8 | 72.7 | 81.4 | 82.1 | 72.5 | 60.6 | 43.9 | 35.3 | 57.7 |
| Highest Mean Max. Temperature (F) | 42.0 | 46.6 | 53.8 | 65.0 | 69.4 | 79.1 | 89.6 | 89.9 | 83.9 | 69.5 | 50.0 | 41.8 | 60.8 |
| Year Highest Occurred | 1983 | 1963 | 1968 | 1977 | 1966 | 1986 | 1985 | 1971 | 1990 | 1988 | 1981 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 21.5 | 29.9 | 41.7 | 51.3 | 59.2 | 65.3 | 74.9 | 74.1 | 63.9 | 55.0 | 29.4 | 25.4 | 53.8 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1981 | 1983 | 1964 | 1985 | 1969 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 27.9 | 33.8 | 39.1 | 45.5 | 52.6 | 59.6 | 65.7 | 66.1 | 57.6 | 47.5 | 36.5 | 29.0 | 46.7 |
| Highest Mean Temperature (F) | 36.3 | 39.3 | 44.3 | 51.2 | 56.1 | 64.5 | 71.5 | 71.6 | 64.9 | 54.5 | 41.8 | 35.9 | 49.1 |
| Year Highest Occurred | 1983 | 1983 | 1986 | 1987 | 1987 | 1982 | 1985 | 1961 | 1967 | 1988 | 1981 | 1966 | 1987 |
| Lowest Mean Temperature (F) | 11.9 | 23.0 | 33.9 | 40.5 | 49.1 | 53.9 | 62.1 | 60.0 | 51.9 | 43.9 | 22.6 | 19.7 | 43.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1970 | 1978 | 1981 | 1986 | 1980 | 1971 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 21.5 | 26.6 | 30.2 | 34.3 | 40.3 | 46.5 | 50.0 | 50.1 | 42.6 | 34.4 | 29.1 | 22.7 | 35.7 |
| Highest Mean Min. Temperature (F) | 30.5 | 33.0 | 35.8 | 38.7 | 43.1 | 52.1 | 53.4 | 55.1 | 49.5 | 40.3 | 34.7 | 31.3 | 38.4 |
| Year Highest Occurred | 1983 | 1961 | 1986 | 1987 | 1987 | 1982 | 1985 | 1961 | 1967 | 1963 | 1965 | 1966 | 1967 |
| Lowest Mean Min. Temperature (F) | 2.3 | 16.0 | 25.9 | 29.4 | 36.8 | 42.1 | 47.1 | 41.8 | 35.9 | 28.9 | 15.7 | 11.9 | 32.6 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1970 | 1977 | 1980 | 1971 | 1980 | 1970 | 1978 | 1985 | 1978 | 1985 |
| Mean Precipitation (in.) | 2.16 | 1.65 | 1.70 | 1.37 | 1.53 | 1.31 | 0.69 | 0.76 | 0.88 | 1.14 | 2.18 | 2.47 | 17.84 |
| Highest Precipitation (in.) | 5.19 | 3.70 | 4.28 | 2.90 | 4.07 | 2.79 | 2.52 | 2.37 | 3.05 | 2.73 | 5.63 | 5.17 | 24.36 |
| Year Highest Occurred | 1969 | 1961 | 1989 | 1969 | 1980 | 1971 | 1983 | 1965 | 1982 | 1990 | 1973 | 1980 | 1983 |
| Lowest Precipitation (in.) | 0.44 | 0.31 | 0.39 | 0.19 | 0.49 | 0.32 | 0.00 | 0.00 | 0.00 | 0.00 | 0.43 | 0.63 | 11.56 |
| Year Lowest Occurred | 1963 | 1966 | 1965 | 1977 | 1964 | 1986 | 1973 | 1969 | 1990 | 1987 | 1976 | 1985 | 1976 |
| Heating Degree Days (F) | 1150. | 874. | 803. | 585. | 384. | 194. | 58. | 85. | 256. | 543. | 855. | 1116. | 6903. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 32. | 79. | 119. | 34. | 0. | 0. | 0. | 264. |