| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 11.9 | 19.3 | 32.8 | 50.1 | 64.6 | 73.4 | 78.8 | 75.6 | 64.3 | 51.8 | 32.8 | 16.6 | 47.7 |
| Highest Mean Max. Temperature (F) | 25.1 | 31.5 | 42.1 | 64.1 | 74.1 | 81.3 | 82.7 | 81.1 | 70.2 | 64.4 | 42.8 | 25.9 | 53.0 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1987 | 1977 | 1988 | 1975 | 1961 | 1967 | 1963 | 1981 | 1987 | 1987 |
| Lowest Mean Max. Temperature (F) | 1.5 | 10.0 | 23.2 | 42.3 | 55.8 | 65.2 | 73.8 | 69.0 | 54.8 | 45.0 | 23.5 | 4.9 | 43.9 |
| Year Lowest Occurred | 1966 | 1979 | 1965 | 1966 | 1979 | 1985 | 1978 | 1977 | 1965 | 1969 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 1.0 | 7.7 | 22.1 | 39.0 | 52.1 | 61.4 | 66.7 | 63.7 | 53.4 | 42.4 | 24.9 | 7.2 | 36.8 |
| Highest Mean Temperature (F) | 13.4 | 23.5 | 32.7 | 47.9 | 61.0 | 67.6 | 70.2 | 68.6 | 57.0 | 52.6 | 34.9 | 18.6 | 42.2 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1987 | 1977 | 1988 | 1975 | 1983 | 1963 | 1963 | 1981 | 1987 | 1987 |
| Lowest Mean Temperature (F) | -10.5 | -2.6 | 11.4 | 33.0 | 45.2 | 53.3 | 62.1 | 57.0 | 46.5 | 36.3 | 14.3 | -4.3 | 33.6 |
| Year Lowest Occurred | 1982 | 1967 | 1965 | 1975 | 1967 | 1969 | 1971 | 1977 | 1965 | 1976 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | -10.0 | -4.0 | 11.4 | 27.8 | 39.6 | 49.5 | 54.6 | 51.7 | 42.5 | 32.9 | 17.0 | -2.2 | 25.9 |
| Highest Mean Min. Temperature (F) | 2.6 | 15.4 | 23.3 | 32.7 | 47.8 | 53.8 | 58.7 | 56.9 | 46.2 | 40.8 | 27.0 | 11.2 | 31.4 |
| Year Highest Occurred | 1983 | 1987 | 1973 | 1986 | 1977 | 1988 | 1983 | 1981 | 1978 | 1963 | 1981 | 1987 | 1987 |
| Lowest Mean Min. Temperature (F) | -22.8 | -17.3 | -0.4 | 23.1 | 32.5 | 41.3 | 49.4 | 45.0 | 38.1 | 26.7 | 5.0 | -14.2 | 23.4 |
| Year Lowest Occurred | 1982 | 1967 | 1965 | 1982 | 1967 | 1969 | 1971 | 1977 | 1974 | 1976 | 1985 | 1976 | 1979 |
| Mean Precipitation (in.) | 0.88 | 0.63 | 1.06 | 1.58 | 2.47 | 3.93 | 3.59 | 3.11 | 3.15 | 1.97 | 1.15 | 0.84 | 24.36 |
| Highest Precipitation (in.) | 3.67 | 1.27 | 3.07 | 3.33 | 6.67 | 7.39 | 9.52 | 6.66 | 7.36 | 4.84 | 3.49 | 1.60 | 31.83 |
| Year Highest Occurred | 1982 | 1962 | 1966 | 1986 | 1985 | 1964 | 1966 | 1988 | 1961 | 1971 | 1977 | 1968 | 1977 |
| Lowest Precipitation (in.) | 0.10 | 0.14 | 0.19 | 0.08 | 0.20 | 0.70 | 1.06 | 1.30 | 0.69 | 0.23 | 0.21 | 0.20 | 18.11 |
| Year Lowest Occurred | 1973 | 1988 | 1969 | 1987 | 1976 | 1961 | 1974 | 1984 | 1979 | 1962 | 1976 | 1987 | 1986 |
| Heating Degree Days (F) | 1984. | 1604. | 1330. | 780. | 418. | 156. | 55. | 116. | 348. | 701. | 1203. | 1792. | 10487. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 18. | 48. | 107. | 76. | 0. | 0. | 0. | 0. | 249. |