| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 24.1 | 29.5 | 41.2 | 57.8 | 70.9 | 79.3 | 83.2 | 80.5 | 71.8 | 60.2 | 43.5 | 28.3 | 55.9 |
| Highest Mean Max. Temperature (F) | 37.3 | 37.9 | 52.4 | 65.7 | 81.4 | 87.4 | 87.5 | 86.6 | 77.2 | 70.3 | 50.4 | 36.2 | 58.7 |
| Year Highest Occurred | 1990 | 1984 | 1968 | 1977 | 1977 | 1988 | 1988 | 1969 | 1978 | 1963 | 1990 | 1979 | 1990 |
| Lowest Mean Max. Temperature (F) | 13.4 | 21.8 | 31.7 | 48.9 | 62.9 | 70.5 | 78.5 | 75.6 | 67.5 | 54.4 | 35.5 | 17.6 | 53.3 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1983 | 1969 | 1962 | 1986 | 1965 | 1988 | 1985 | 1983 | 1972 |
| Mean Temperature (F) | 13.9 | 18.7 | 30.7 | 45.6 | 57.7 | 66.6 | 70.9 | 68.4 | 60.1 | 49.2 | 34.6 | 19.3 | 44.6 |
| Highest Mean Temperature (F) | 28.0 | 29.3 | 39.9 | 52.3 | 66.7 | 71.8 | 75.1 | 73.7 | 65.0 | 57.2 | 40.4 | 28.2 | 47.9 |
| Year Highest Occurred | 1990 | 1984 | 1973 | 1977 | 1977 | 1988 | 1983 | 1988 | 1978 | 1963 | 1990 | 1982 | 1987 |
| Lowest Mean Temperature (F) | 2.5 | 10.5 | 21.9 | 38.4 | 52.0 | 59.5 | 66.4 | 64.4 | 55.2 | 43.2 | 27.2 | 8.8 | 42.4 |
| Year Lowest Occurred | 1977 | 1978 | 1965 | 1975 | 1967 | 1969 | 1962 | 1986 | 1975 | 1987 | 1976 | 1983 | 1972 |
| Mean Min. Temperature (F) | 3.7 | 7.8 | 20.2 | 33.3 | 44.4 | 53.8 | 58.6 | 56.3 | 48.5 | 38.1 | 25.6 | 10.3 | 33.4 |
| Highest Mean Min. Temperature (F) | 18.7 | 20.7 | 30.2 | 38.8 | 52.0 | 58.2 | 63.0 | 62.0 | 52.7 | 46.2 | 30.4 | 20.5 | 37.1 |
| Year Highest Occurred | 1990 | 1984 | 1973 | 1977 | 1977 | 1971 | 1983 | 1988 | 1978 | 1971 | 1990 | 1982 | 1987 |
| Lowest Mean Min. Temperature (F) | -8.4 | -2.9 | 11.5 | 27.9 | 37.8 | 47.7 | 54.2 | 51.4 | 41.6 | 31.5 | 16.2 | -0.6 | 30.9 |
| Year Lowest Occurred | 1977 | 1978 | 1969 | 1975 | 1961 | 1982 | 1962 | 1967 | 1974 | 1987 | 1976 | 1976 | 1963 |
| Mean Precipitation (in.) | 0.80 | 0.90 | 2.03 | 2.58 | 3.27 | 3.64 | 3.60 | 3.92 | 4.19 | 2.28 | 1.92 | 1.16 | 30.29 |
| Highest Precipitation (in.) | 2.03 | 2.81 | 4.54 | 5.12 | 8.19 | 8.08 | 6.16 | 9.16 | 10.78 | 4.91 | 5.41 | 2.92 | 38.57 |
| Year Highest Occurred | 1969 | 1966 | 1973 | 1981 | 1970 | 1990 | 1978 | 1980 | 1986 | 1984 | 1982 | 1966 | 1990 |
| Lowest Precipitation (in.) | 0.08 | 0.07 | 0.22 | 0.54 | 0.68 | 1.16 | 0.83 | 0.79 | 0.42 | 0.27 | 0.08 | 0.30 | 18.53 |
| Year Lowest Occurred | 1981 | 1970 | 1978 | 1989 | 1981 | 1988 | 1975 | 1976 | 1976 | 1964 | 1976 | 1986 | 1976 |
| Heating Degree Days (F) | 1584. | 1296. | 1063. | 582. | 266. | 59. | 11. | 28. | 164. | 490. | 912. | 1417. | 7872. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 40. | 107. | 194. | 133. | 17. | 0. | 0. | 0. | 491. |