| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 41.0 | 47.4 | 53.3 | 59.7 | 68.1 | 77.0 | 85.7 | 84.9 | 76.0 | 64.4 | 49.0 | 41.7 | 62.4 |
| Highest Mean Max. Temperature (F) | 48.6 | 53.3 | 58.9 | 70.3 | 74.3 | 85.7 | 93.6 | 92.8 | 84.9 | 77.2 | 54.9 | 49.3 | 65.7 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1987 | 1966 | 1986 | 1985 | 1981 | 1990 | 1988 | 1989 | 1980 | 1988 |
| Lowest Mean Max. Temperature (F) | 25.1 | 36.7 | 47.9 | 52.3 | 58.3 | 69.3 | 80.2 | 76.5 | 67.3 | 56.1 | 37.0 | 31.8 | 60.4 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1967 | 1977 | 1980 | 1983 | 1976 | 1985 | 1971 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 32.2 | 37.3 | 41.7 | 46.5 | 53.7 | 61.8 | 68.3 | 67.6 | 59.4 | 49.8 | 39.3 | 33.0 | 49.2 |
| Highest Mean Temperature (F) | 39.6 | 42.4 | 46.7 | 53.3 | 58.7 | 68.9 | 75.6 | 73.8 | 66.3 | 60.5 | 43.8 | 39.2 | 51.5 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1987 | 1987 | 1986 | 1985 | 1986 | 1990 | 1988 | 1965 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 16.3 | 25.8 | 37.5 | 40.8 | 47.6 | 55.6 | 63.6 | 62.0 | 53.5 | 43.2 | 26.9 | 23.9 | 47.3 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1977 | 1975 | 1963 | 1976 | 1971 | 1971 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 23.2 | 27.1 | 30.0 | 33.4 | 39.2 | 46.5 | 50.8 | 50.3 | 42.6 | 35.2 | 29.5 | 24.2 | 36.0 |
| Highest Mean Min. Temperature (F) | 31.6 | 32.6 | 36.0 | 38.1 | 44.5 | 52.1 | 57.5 | 56.3 | 48.3 | 43.7 | 34.3 | 32.3 | 38.5 |
| Year Highest Occurred | 1967 | 1961 | 1983 | 1989 | 1987 | 1986 | 1985 | 1986 | 1967 | 1988 | 1983 | 1973 | 1986 |
| Lowest Mean Min. Temperature (F) | 7.5 | 14.9 | 24.5 | 28.1 | 34.5 | 37.9 | 43.9 | 45.1 | 37.5 | 30.2 | 16.7 | 13.5 | 33.9 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1978 | 1975 | 1966 | 1980 | 1971 | 1969 | 1985 | 1990 | 1976 |
| Mean Precipitation (in.) | 1.07 | 0.69 | 1.03 | 1.16 | 1.48 | 1.31 | 0.56 | 0.71 | 0.73 | 0.82 | 1.41 | 1.28 | 12.25 |
| Highest Precipitation (in.) | 2.81 | 2.31 | 2.26 | 3.45 | 3.78 | 3.89 | 3.81 | 5.07 | 3.02 | 3.00 | 4.87 | 7.00 | 17.72 |
| Year Highest Occurred | 1969 | 1986 | 1983 | 1978 | 1977 | 1969 | 1987 | 1976 | 1982 | 1962 | 1968 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.07 | 0.00 | 0.21 | 0.02 | 0.18 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 | 0.20 | 7.25 |
| Year Lowest Occurred | 1961 | 1988 | 1988 | 1987 | 1964 | 1986 | 1988 | 1981 | 1990 | 1988 | 1987 | 1989 | 1967 |
| Heating Degree Days (F) | 1017. | 776. | 722. | 555. | 354. | 158. | 43. | 73. | 208. | 476. | 771. | 992. | 6145. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 62. | 146. | 153. | 40. | 0. | 0. | 0. | 401. |