| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.3 | 43.3 | 49.9 | 60.5 | 69.8 | 81.1 | 89.1 | 86.6 | 77.4 | 65.9 | 50.7 | 40.4 | 62.8 |
| Highest Mean Max. Temperature (F) | 49.0 | 52.2 | 60.5 | 66.8 | 76.5 | 87.6 | 93.5 | 93.1 | 83.6 | 73.6 | 57.8 | 51.1 | 65.4 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1981 | 1974 | 1988 | 1964 | 1983 | 1977 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 25.8 | 32.7 | 38.1 | 50.0 | 63.6 | 74.2 | 84.8 | 82.4 | 66.5 | 50.9 | 34.6 | 22.4 | 60.0 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1984 | 1983 | 1983 | 1990 | 1987 | 1965 | 1969 | 1972 | 1983 | 1973 |
| Mean Temperature (F) | 25.3 | 30.2 | 36.8 | 46.6 | 56.1 | 66.4 | 73.5 | 71.2 | 61.9 | 50.3 | 37.0 | 27.4 | 48.6 |
| Highest Mean Temperature (F) | 35.7 | 37.2 | 45.4 | 52.6 | 60.3 | 71.7 | 76.6 | 77.0 | 66.7 | 57.1 | 43.2 | 36.3 | 50.8 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1977 | 1988 | 1964 | 1983 | 1977 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 14.4 | 20.2 | 25.6 | 40.0 | 51.7 | 61.5 | 69.9 | 67.9 | 53.7 | 40.5 | 26.0 | 12.6 | 47.2 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1984 | 1967 | 1969 | 1972 | 1974 | 1965 | 1969 | 1972 | 1983 | 1985 |
| Mean Min. Temperature (F) | 12.2 | 17.0 | 23.6 | 32.7 | 42.3 | 51.7 | 57.8 | 55.6 | 46.4 | 34.5 | 23.3 | 14.3 | 34.3 |
| Highest Mean Min. Temperature (F) | 22.4 | 24.8 | 30.6 | 38.4 | 46.6 | 55.9 | 61.0 | 60.8 | 51.8 | 40.5 | 28.6 | 21.5 | 36.4 |
| Year Highest Occurred | 1986 | 1983 | 1986 | 1981 | 1977 | 1977 | 1966 | 1983 | 1963 | 1963 | 1981 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | 2.5 | 7.7 | 13.0 | 28.6 | 38.9 | 48.3 | 54.4 | 52.2 | 40.9 | 29.5 | 17.4 | 2.8 | 33.0 |
| Year Lowest Occurred | 1963 | 1989 | 1965 | 1968 | 1967 | 1969 | 1971 | 1974 | 1965 | 1976 | 1972 | 1983 | 1975 |
| Mean Precipitation (in.) | 0.33 | 0.31 | 0.99 | 1.35 | 3.19 | 2.60 | 2.82 | 2.03 | 1.00 | 0.69 | 0.57 | 0.36 | 16.24 |
| Highest Precipitation (in.) | 1.51 | 1.47 | 2.46 | 3.15 | 6.07 | 5.98 | 5.79 | 4.47 | 2.80 | 3.62 | 2.05 | 1.39 | 21.78 |
| Year Highest Occurred | 1988 | 1987 | 1981 | 1973 | 1975 | 1965 | 1981 | 1984 | 1973 | 1969 | 1972 | 1973 | 1965 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.05 | 0.26 | 0.13 | 0.72 | 0.33 | 0.16 | 0.00 | 0.00 | 0.04 | 0.01 | 9.93 |
| Year Lowest Occurred | 1983 | 1979 | 1978 | 1965 | 1974 | 1976 | 1986 | 1973 | 1978 | 1988 | 1989 | 1980 | 1974 |
| Heating Degree Days (F) | 1231. | 974. | 874. | 552. | 284. | 65. | 0. | 12. | 148. | 456. | 840. | 1166. | 6602. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 9. | 107. | 264. | 204. | 55. | 0. | 0. | 0. | 639. |