| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 23.9 | 30.0 | 42.3 | 59.0 | 71.3 | 80.6 | 86.3 | 83.4 | 73.8 | 61.6 | 43.4 | 27.8 | 57.0 |
| Highest Mean Max. Temperature (F) | 38.0 | 44.4 | 56.1 | 67.4 | 77.3 | 88.5 | 92.1 | 90.7 | 80.9 | 71.4 | 50.7 | 38.0 | 61.1 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1981 | 1977 | 1988 | 1974 | 1983 | 1978 | 1963 | 1963 | 1986 | 1987 |
| Lowest Mean Max. Temperature (F) | 10.0 | 15.0 | 30.1 | 49.2 | 66.4 | 74.8 | 81.4 | 77.7 | 61.6 | 52.7 | 29.6 | 10.0 | 52.8 |
| Year Lowest Occurred | 1979 | 1979 | 1969 | 1975 | 1979 | 1969 | 1962 | 1985 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 13.1 | 19.1 | 31.4 | 46.3 | 58.8 | 68.5 | 74.0 | 70.7 | 60.7 | 48.5 | 32.7 | 17.9 | 45.1 |
| Highest Mean Temperature (F) | 27.6 | 32.4 | 40.1 | 52.6 | 64.4 | 75.3 | 77.8 | 77.0 | 66.5 | 58.1 | 38.9 | 27.8 | 49.2 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1977 | 1977 | 1988 | 1964 | 1983 | 1990 | 1963 | 1962 | 1965 | 1987 |
| Lowest Mean Temperature (F) | -0.8 | 3.6 | 19.5 | 40.2 | 53.9 | 63.2 | 70.4 | 66.4 | 52.3 | 42.5 | 20.9 | 0.7 | 41.5 |
| Year Lowest Occurred | 1978 | 1979 | 1969 | 1975 | 1979 | 1969 | 1971 | 1986 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 2.3 | 8.1 | 20.4 | 33.6 | 46.1 | 56.3 | 61.6 | 57.9 | 47.5 | 35.3 | 22.0 | 8.0 | 33.3 |
| Highest Mean Min. Temperature (F) | 17.2 | 20.3 | 29.6 | 39.4 | 51.7 | 62.0 | 65.7 | 63.2 | 53.0 | 44.8 | 27.8 | 18.6 | 37.3 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1977 | 1962 | 1988 | 1966 | 1983 | 1963 | 1963 | 1962 | 1965 | 1987 |
| Lowest Mean Min. Temperature (F) | -11.6 | -7.9 | 8.8 | 29.0 | 41.0 | 51.2 | 57.5 | 53.6 | 41.0 | 29.4 | 12.2 | -8.7 | 30.2 |
| Year Lowest Occurred | 1978 | 1979 | 1969 | 1966 | 1968 | 1982 | 1971 | 1974 | 1984 | 1976 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.54 | 0.68 | 1.77 | 2.58 | 3.10 | 3.78 | 2.87 | 2.69 | 2.96 | 1.69 | 1.13 | 0.74 | 24.53 |
| Highest Precipitation (in.) | 1.55 | 3.10 | 5.11 | 8.39 | 9.22 | 14.19 | 7.02 | 10.82 | 7.80 | 5.59 | 4.45 | 2.86 | 39.53 |
| Year Highest Occurred | 1988 | 1962 | 1977 | 1984 | 1972 | 1984 | 1963 | 1975 | 1986 | 1982 | 1983 | 1968 | 1984 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.28 | 0.26 | 1.06 | 1.16 | 0.21 | 0.27 | 0.44 | 0.08 | 0.00 | 0.00 | 13.26 |
| Year Lowest Occurred | 1990 | 1986 | 1967 | 1969 | 1981 | 1988 | 1975 | 1983 | 1974 | 1964 | 1980 | 1986 | 1974 |
| Heating Degree Days (F) | 1609. | 1285. | 1042. | 561. | 225. | 40. | 0. | 21. | 164. | 512. | 969. | 1460. | 7888. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 32. | 145. | 282. | 197. | 35. | 0. | 0. | 0. | 691. |