| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.7 | 47.9 | 56.0 | 65.2 | 76.5 | 87.9 | 94.0 | 90.9 | 82.2 | 70.6 | 53.7 | 41.6 | 67.2 |
| Highest Mean Max. Temperature (F) | 48.0 | 55.3 | 64.6 | 71.4 | 82.7 | 94.4 | 99.0 | 94.8 | 88.1 | 78.7 | 59.9 | 50.8 | 70.1 |
| Year Highest Occurred | 1981 | 1970 | 1972 | 1962 | 1974 | 1990 | 1989 | 1969 | 1979 | 1963 | 1989 | 1977 | 1989 |
| Lowest Mean Max. Temperature (F) | 32.8 | 40.5 | 51.8 | 54.9 | 65.9 | 81.4 | 89.6 | 85.3 | 74.7 | 59.5 | 46.1 | 33.1 | 63.9 |
| Year Lowest Occurred | 1979 | 1985 | 1973 | 1983 | 1983 | 1983 | 1986 | 1968 | 1986 | 1984 | 1979 | 1978 | 1982 |
| Mean Temperature (F) | 26.4 | 34.2 | 42.0 | 50.0 | 60.3 | 69.9 | 76.5 | 74.4 | 65.0 | 53.6 | 39.8 | 29.4 | 51.8 |
| Highest Mean Temperature (F) | 33.4 | 40.3 | 48.2 | 55.0 | 64.8 | 74.7 | 79.7 | 78.7 | 70.1 | 60.0 | 43.7 | 36.9 | 53.9 |
| Year Highest Occurred | 1981 | 1970 | 1967 | 1990 | 1969 | 1990 | 1989 | 1969 | 1990 | 1963 | 1966 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 17.7 | 26.8 | 37.5 | 43.4 | 53.4 | 64.4 | 73.4 | 70.8 | 59.5 | 47.0 | 34.1 | 21.9 | 49.6 |
| Year Lowest Occurred | 1963 | 1974 | 1964 | 1983 | 1983 | 1983 | 1986 | 1968 | 1965 | 1984 | 1979 | 1978 | 1982 |
| Mean Min. Temperature (F) | 13.0 | 20.3 | 28.1 | 34.7 | 44.1 | 51.9 | 58.9 | 57.7 | 47.7 | 36.5 | 25.9 | 17.1 | 36.3 |
| Highest Mean Min. Temperature (F) | 24.1 | 26.5 | 34.4 | 39.8 | 48.6 | 56.0 | 62.9 | 62.6 | 53.8 | 41.2 | 30.8 | 24.0 | 39.2 |
| Year Highest Occurred | 1980 | 1968 | 1967 | 1990 | 1969 | 1987 | 1967 | 1969 | 1990 | 1974 | 1978 | 1980 | 1969 |
| Lowest Mean Min. Temperature (F) | 1.3 | 10.4 | 19.7 | 29.6 | 40.8 | 46.2 | 55.4 | 52.5 | 41.9 | 32.2 | 20.4 | 9.3 | 32.8 |
| Year Lowest Occurred | 1963 | 1974 | 1963 | 1963 | 1983 | 1963 | 1962 | 1962 | 1965 | 1964 | 1964 | 1990 | 1964 |
| Mean Precipitation (in.) | 0.88 | 0.62 | 1.00 | 1.01 | 1.00 | 0.45 | 1.32 | 1.42 | 1.30 | 1.53 | 1.09 | 0.98 | 12.60 |
| Highest Precipitation (in.) | 3.19 | 1.66 | 3.43 | 2.40 | 2.41 | 1.65 | 3.54 | 3.32 | 4.78 | 5.89 | 2.39 | 3.55 | 21.96 |
| Year Highest Occurred | 1969 | 1962 | 1970 | 1975 | 1967 | 1973 | 1977 | 1984 | 1986 | 1972 | 1983 | 1966 | 1965 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 | 0.28 | 0.20 | 0.06 | 0.01 | 0.00 | 0.03 | 7.13 |
| Year Lowest Occurred | 1972 | 1972 | 1966 | 1989 | 1972 | 1989 | 1972 | 1985 | 1979 | 1964 | 1989 | 1989 | 1989 |
| Heating Degree Days (F) | 1197. | 862. | 713. | 450. | 170. | 31. | 0. | 0. | 85. | 358. | 756. | 1104. | 5726. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 24. | 178. | 357. | 291. | 85. | 0. | 0. | 0. | 935. |