| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.6 | 51.7 | 55.1 | 59.2 | 65.3 | 71.9 | 78.9 | 79.7 | 74.4 | 64.4 | 52.4 | 46.6 | 62.2 |
| Highest Mean Max. Temperature (F) | 51.7 | 57.8 | 61.1 | 67.8 | 69.8 | 77.8 | 87.6 | 87.9 | 83.0 | 73.1 | 55.9 | 51.6 | 64.6 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1987 | 1987 | 1987 | 1985 | 1967 | 1974 | 1987 | 1980 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 38.3 | 42.7 | 50.6 | 53.5 | 58.9 | 65.8 | 72.0 | 74.7 | 68.9 | 59.5 | 43.7 | 39.4 | 60.0 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1980 | 1983 | 1976 | 1978 | 1984 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 39.2 | 42.5 | 45.0 | 48.3 | 53.5 | 59.5 | 64.2 | 64.6 | 60.0 | 52.5 | 44.6 | 39.7 | 51.1 |
| Highest Mean Temperature (F) | 42.9 | 48.6 | 49.6 | 53.5 | 57.2 | 63.7 | 68.6 | 69.4 | 64.2 | 56.1 | 48.3 | 43.7 | 52.5 |
| Year Highest Occurred | 1961 | 1963 | 1986 | 1989 | 1987 | 1986 | 1985 | 1967 | 1967 | 1979 | 1965 | 1973 | 1986 |
| Lowest Mean Temperature (F) | 31.1 | 33.1 | 41.6 | 44.0 | 50.4 | 55.5 | 60.3 | 61.7 | 56.8 | 49.4 | 37.2 | 32.3 | 49.6 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1976 | 1963 | 1980 | 1970 | 1971 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 31.7 | 33.3 | 35.0 | 37.4 | 41.6 | 47.1 | 49.5 | 49.5 | 45.6 | 40.6 | 36.7 | 32.7 | 40.1 |
| Highest Mean Min. Temperature (F) | 36.1 | 39.6 | 38.8 | 40.9 | 44.8 | 51.8 | 51.9 | 53.4 | 50.6 | 45.2 | 40.7 | 36.9 | 41.5 |
| Year Highest Occurred | 1970 | 1961 | 1983 | 1990 | 1969 | 1969 | 1975 | 1977 | 1963 | 1979 | 1965 | 1977 | 1961 |
| Lowest Mean Min. Temperature (F) | 23.8 | 23.4 | 30.9 | 32.9 | 39.3 | 42.5 | 47.8 | 45.4 | 42.0 | 36.5 | 30.4 | 25.2 | 37.7 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1982 | 1982 | 1976 | 1977 | 1980 | 1972 | 1974 | 1978 | 1990 | 1985 |
| Mean Precipitation (in.) | 6.27 | 5.02 | 5.22 | 3.95 | 2.80 | 1.81 | 0.72 | 1.14 | 1.94 | 3.52 | 7.31 | 6.96 | 46.66 |
| Highest Precipitation (in.) | 12.54 | 13.04 | 9.07 | 7.84 | 5.42 | 4.34 | 5.44 | 5.85 | 5.54 | 6.37 | 17.12 | 17.20 | 57.14 |
| Year Highest Occurred | 1964 | 1961 | 1989 | 1963 | 1977 | 1984 | 1987 | 1968 | 1986 | 1990 | 1973 | 1964 | 1964 |
| Lowest Precipitation (in.) | 0.64 | 1.53 | 0.75 | 1.29 | 0.65 | 0.50 | 0.00 | 0.00 | 0.03 | 0.07 | 2.26 | 1.49 | 33.24 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1966 | 1982 | 1977 | 1967 | 1986 | 1975 | 1987 | 1976 | 1976 | 1965 |
| Heating Degree Days (F) | 800. | 630. | 620. | 501. | 357. | 176. | 73. | 79. | 167. | 388. | 612. | 784. | 5187. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 11. | 48. | 66. | 17. | 0. | 0. | 0. | 142. |