| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | -7.8 | 6.2 | 26.0 | 43.2 | 59.3 | 69.8 | 73.1 | 68.4 | 55.4 | 31.4 | 7.8 | -3.4 | 35.8 |
| Highest Mean Max. Temperature (F) | 16.5 | 18.0 | 43.2 | 53.8 | 66.8 | 76.0 | 79.7 | 75.4 | 64.5 | 40.0 | 23.0 | 16.0 | 39.7 |
| Year Highest Occurred | 1985 | 1964 | 1965 | 1989 | 1981 | 1969 | 1990 | 1977 | 1964 | 1969 | 1979 | 1986 | 1981 |
| Lowest Mean Max. Temperature (F) | -27.9 | -17.6 | 15.3 | 34.3 | 49.5 | 64.1 | 66.9 | 60.4 | 49.1 | 24.2 | -3.7 | -36.6 | 32.1 |
| Year Lowest Occurred | 1971 | 1979 | 1972 | 1986 | 1964 | 1970 | 1969 | 1969 | 1980 | 1970 | 1963 | 1980 | 1971 |
| Mean Temperature (F) | -17.4 | -6.4 | 9.9 | 28.9 | 44.0 | 54.1 | 58.1 | 53.1 | 42.0 | 22.1 | -2.2 | -12.3 | 22.8 |
| Highest Mean Temperature (F) | 7.9 | 7.9 | 29.9 | 37.7 | 51.4 | 58.7 | 63.1 | 58.8 | 47.6 | 29.3 | 12.1 | 8.0 | 27.0 |
| Year Highest Occurred | 1985 | 1964 | 1965 | 1989 | 1990 | 1988 | 1988 | 1963 | 1989 | 1962 | 1979 | 1967 | 1987 |
| Lowest Mean Temperature (F) | -37.6 | -34.3 | -2.4 | 20.4 | 36.8 | 50.3 | 54.5 | 45.6 | 36.7 | 15.2 | -14.2 | -43.0 | 19.1 |
| Year Lowest Occurred | 1971 | 1979 | 1972 | 1972 | 1964 | 1970 | 1969 | 1969 | 1972 | 1982 | 1973 | 1980 | 1971 |
| Mean Min. Temperature (F) | -27.0 | -18.9 | -6.2 | 14.5 | 28.6 | 38.3 | 43.1 | 37.8 | 28.6 | 12.6 | -12.2 | -21.3 | 9.8 |
| Highest Mean Min. Temperature (F) | -0.8 | -2.2 | 16.6 | 28.5 | 37.8 | 45.6 | 53.4 | 44.1 | 34.3 | 20.1 | 1.1 | 16.7 | 14.9 |
| Year Highest Occurred | 1985 | 1964 | 1965 | 1990 | 1990 | 1988 | 1988 | 1963 | 1989 | 1962 | 1979 | 1967 | 1987 |
| Lowest Mean Min. Temperature (F) | -47.3 | -50.9 | -20.0 | 4.8 | 24.1 | 32.6 | 38.2 | 30.7 | 20.0 | 5.5 | -27.2 | -49.3 | 5.8 |
| Year Lowest Occurred | 1971 | 1979 | 1972 | 1972 | 1964 | 1964 | 1990 | 1969 | 1988 | 1982 | 1973 | 1980 | 1966 |
| Mean Precipitation (in.) | 0.38 | 0.34 | 0.17 | 0.18 | 0.56 | 1.79 | 2.24 | 1.18 | 0.91 | 0.59 | 0.49 | 0.32 | 9.15 |
| Highest Precipitation (in.) | 1.29 | 1.34 | 0.52 | 0.60 | 2.59 | 3.87 | 4.62 | 2.71 | 2.46 | 2.54 | 2.48 | 1.63 | 14.25 |
| Year Highest Occurred | 1978 | 1963 | 1979 | 1976 | 1975 | 1968 | 1984 | 1961 | 1967 | 1988 | 1982 | 1964 | 1968 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 4.74 |
| Year Lowest Occurred | 1981 | 1990 | 1989 | 1990 | 1990 | 1986 | 1963 | 1989 | 1988 | 1986 | 1984 | 1987 | 1989 |
| Heating Degree Days (F) | 2554. | 1999. | 1708. | 1083. | 651. | 327. | 218. | 369. | 690. | 1330. | 2016. | 2396. | 15341. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |