| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.2 | 41.2 | 46.0 | 56.0 | 65.4 | 76.2 | 84.4 | 82.4 | 73.1 | 62.4 | 47.5 | 39.6 | 59.4 |
| Highest Mean Max. Temperature (F) | 46.4 | 47.5 | 56.4 | 65.8 | 73.3 | 84.0 | 90.2 | 86.1 | 79.8 | 70.2 | 54.0 | 50.6 | 62.2 |
| Year Highest Occurred | 1981 | 1970 | 1972 | 1981 | 1963 | 1980 | 1964 | 1988 | 1977 | 1963 | 1965 | 1980 | 1977 |
| Lowest Mean Max. Temperature (F) | 27.2 | 29.4 | 33.4 | 44.9 | 59.0 | 66.6 | 77.2 | 78.9 | 61.8 | 46.7 | 36.5 | 26.4 | 56.9 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1983 | 1983 | 1982 | 1971 | 1968 | 1965 | 1969 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 25.1 | 28.0 | 32.9 | 42.0 | 51.3 | 61.3 | 68.5 | 66.6 | 57.2 | 47.0 | 33.9 | 26.5 | 45.0 |
| Highest Mean Temperature (F) | 33.1 | 38.3 | 40.8 | 49.0 | 55.6 | 66.7 | 72.6 | 70.2 | 62.5 | 54.1 | 39.7 | 36.4 | 46.9 |
| Year Highest Occurred | 1986 | 1970 | 1986 | 1981 | 1963 | 1977 | 1966 | 1983 | 1990 | 1963 | 1965 | 1980 | 1963 |
| Lowest Mean Temperature (F) | 13.7 | 17.4 | 21.1 | 34.4 | 46.7 | 55.1 | 63.8 | 63.9 | 48.8 | 36.3 | 24.7 | 14.5 | 42.7 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1983 | 1983 | 1982 | 1971 | 1968 | 1965 | 1969 | 1985 | 1983 | 1985 |
| Mean Min. Temperature (F) | 12.0 | 14.8 | 19.7 | 28.0 | 37.2 | 46.4 | 52.6 | 50.9 | 41.3 | 31.6 | 20.3 | 13.4 | 30.7 |
| Highest Mean Min. Temperature (F) | 20.9 | 29.1 | 26.2 | 32.1 | 39.9 | 51.1 | 57.2 | 56.2 | 48.0 | 38.0 | 25.4 | 22.2 | 32.2 |
| Year Highest Occurred | 1970 | 1970 | 1986 | 1981 | 1969 | 1977 | 1966 | 1983 | 1963 | 1963 | 1990 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -0.9 | 5.3 | 8.7 | 23.8 | 34.4 | 43.5 | 49.0 | 47.8 | 35.8 | 25.8 | 12.9 | 2.5 | 28.4 |
| Year Lowest Occurred | 1963 | 1989 | 1965 | 1983 | 1983 | 1982 | 1972 | 1964 | 1965 | 1969 | 1985 | 1983 | 1985 |
| Mean Precipitation (in.) | 0.37 | 0.43 | 1.12 | 1.48 | 2.56 | 2.51 | 2.12 | 1.67 | 1.49 | 0.89 | 0.56 | 0.40 | 15.60 |
| Highest Precipitation (in.) | 2.15 | 2.18 | 4.19 | 3.88 | 5.74 | 5.30 | 5.83 | 4.70 | 4.48 | 3.08 | 1.78 | 1.43 | 22.77 |
| Year Highest Occurred | 1980 | 1987 | 1990 | 1984 | 1981 | 1962 | 1977 | 1984 | 1973 | 1969 | 1983 | 1973 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.04 | 0.22 | 0.28 | 0.05 | 0.35 | 0.60 | 0.13 | 0.00 | 0.00 | 0.06 | 6.36 |
| Year Lowest Occurred | 1983 | 1983 | 1982 | 1965 | 1974 | 1980 | 1964 | 1971 | 1978 | 1988 | 1965 | 1974 | 1964 |
| Heating Degree Days (F) | 1237. | 1036. | 995. | 690. | 425. | 152. | 28. | 35. | 252. | 558. | 933. | 1194. | 7535. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 41. | 137. | 85. | 18. | 0. | 0. | 0. | 281. |