| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 24.3 | 29.6 | 42.3 | 59.0 | 70.7 | 80.5 | 86.3 | 83.3 | 73.1 | 61.2 | 43.4 | 28.0 | 56.8 |
| Highest Mean Max. Temperature (F) | 39.5 | 44.5 | 55.1 | 68.4 | 77.9 | 90.0 | 93.3 | 90.9 | 80.3 | 72.6 | 52.7 | 37.2 | 61.6 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1987 | 1988 | 1988 | 1975 | 1983 | 1990 | 1963 | 1963 | 1965 | 1987 |
| Lowest Mean Max. Temperature (F) | 10.9 | 17.4 | 29.7 | 49.4 | 65.6 | 74.0 | 80.9 | 76.9 | 60.1 | 53.0 | 28.8 | 10.9 | 53.3 |
| Year Lowest Occurred | 1979 | 1978 | 1965 | 1975 | 1968 | 1969 | 1962 | 1985 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 13.8 | 19.7 | 32.5 | 46.9 | 58.4 | 68.3 | 74.3 | 71.4 | 60.9 | 48.6 | 33.0 | 18.3 | 45.5 |
| Highest Mean Temperature (F) | 28.2 | 32.8 | 39.8 | 53.8 | 66.8 | 76.3 | 79.2 | 78.3 | 66.7 | 58.1 | 39.5 | 28.4 | 49.9 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1977 | 1977 | 1988 | 1974 | 1983 | 1978 | 1963 | 1981 | 1965 | 1987 |
| Lowest Mean Temperature (F) | 1.8 | 7.5 | 20.5 | 41.1 | 52.6 | 61.4 | 69.3 | 66.3 | 51.5 | 43.4 | 20.7 | 2.1 | 42.7 |
| Year Lowest Occurred | 1979 | 1979 | 1969 | 1966 | 1968 | 1969 | 1971 | 1985 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Min. Temperature (F) | 3.3 | 9.7 | 22.6 | 34.8 | 45.9 | 56.1 | 62.3 | 59.4 | 48.7 | 36.0 | 22.6 | 8.6 | 34.2 |
| Highest Mean Min. Temperature (F) | 16.9 | 21.0 | 31.9 | 41.7 | 56.1 | 62.6 | 66.3 | 65.7 | 54.7 | 43.6 | 29.3 | 19.5 | 38.1 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1977 | 1977 | 1988 | 1966 | 1983 | 1978 | 1963 | 1983 | 1965 | 1987 |
| Lowest Mean Min. Temperature (F) | -8.3 | -2.5 | 10.6 | 28.8 | 39.6 | 48.8 | 56.7 | 54.7 | 42.0 | 30.3 | 12.5 | -6.7 | 31.9 |
| Year Lowest Occurred | 1978 | 1979 | 1969 | 1961 | 1968 | 1969 | 1971 | 1986 | 1974 | 1987 | 1985 | 1983 | 1978 |
| Mean Precipitation (in.) | 0.51 | 0.64 | 1.64 | 2.52 | 3.03 | 3.40 | 2.68 | 2.85 | 3.02 | 1.78 | 1.09 | 0.70 | 23.86 |
| Highest Precipitation (in.) | 1.71 | 4.05 | 3.60 | 5.79 | 7.29 | 8.43 | 6.45 | 9.09 | 9.26 | 5.73 | 2.95 | 2.62 | 33.26 |
| Year Highest Occurred | 1969 | 1962 | 1977 | 1984 | 1965 | 1984 | 1963 | 1975 | 1986 | 1973 | 1983 | 1968 | 1982 |
| Lowest Precipitation (in.) | 0.08 | 0.05 | 0.14 | 0.17 | 0.61 | 0.91 | 0.49 | 0.53 | 0.47 | 0.02 | 0.02 | 0.00 | 11.42 |
| Year Lowest Occurred | 1990 | 1986 | 1967 | 1969 | 1981 | 1988 | 1988 | 1970 | 1990 | 1988 | 1980 | 1986 | 1976 |
| Heating Degree Days (F) | 1587. | 1268. | 1008. | 543. | 240. | 50. | 10. | 22. | 165. | 508. | 960. | 1448. | 7809. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 35. | 149. | 298. | 220. | 42. | 0. | 0. | 0. | 744. |