| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | -4.5 | 3.4 | 20.9 | 40.2 | 57.6 | 69.7 | 72.7 | 66.9 | 53.9 | 31.7 | 10.4 | 0.2 | 35.3 |
| Highest Mean Max. Temperature (F) | 27.7 | 20.0 | 35.7 | 47.9 | 65.9 | 79.2 | 77.7 | 75.5 | 59.5 | 41.6 | 30.9 | 20.3 | 40.6 |
| Year Highest Occurred | 1981 | 1977 | 1981 | 1990 | 1981 | 1969 | 1990 | 1977 | 1976 | 1979 | 1979 | 1985 | 1981 |
| Lowest Mean Max. Temperature (F) | -28.6 | -21.9 | 7.4 | 30.5 | 47.3 | 63.1 | 67.4 | 61.2 | 45.8 | 23.0 | -4.0 | -24.5 | 31.4 |
| Year Lowest Occurred | 1969 | 1979 | 1971 | 1986 | 1964 | 1963 | 1981 | 1969 | 1970 | 1974 | 1975 | 1980 | 1961 |
| Mean Temperature (F) | -13.7 | -8.1 | 5.9 | 26.7 | 44.3 | 56.4 | 59.6 | 53.9 | 42.1 | 23.6 | 1.9 | -8.1 | 23.7 |
| Highest Mean Temperature (F) | 17.0 | 8.3 | 25.3 | 34.0 | 51.3 | 60.3 | 63.2 | 60.1 | 46.4 | 32.1 | 21.6 | 12.1 | 29.8 |
| Year Highest Occurred | 1981 | 1977 | 1965 | 1990 | 1981 | 1969 | 1990 | 1977 | 1978 | 1979 | 1979 | 1985 | 1981 |
| Lowest Mean Temperature (F) | -36.3 | -35.2 | -7.9 | 15.5 | 36.4 | 51.1 | 54.8 | 45.6 | 36.3 | 14.9 | -13.1 | -31.4 | 20.0 |
| Year Lowest Occurred | 1969 | 1979 | 1972 | 1986 | 1964 | 1963 | 1969 | 1969 | 1970 | 1974 | 1975 | 1980 | 1974 |
| Mean Min. Temperature (F) | -22.8 | -19.5 | -9.2 | 13.1 | 31.1 | 43.0 | 46.5 | 40.8 | 30.3 | 15.4 | -6.5 | -16.5 | 12.1 |
| Highest Mean Min. Temperature (F) | 6.2 | -3.4 | 16.8 | 20.5 | 36.6 | 46.2 | 50.0 | 44.8 | 35.4 | 24.9 | 12.2 | 3.9 | 19.0 |
| Year Highest Occurred | 1981 | 1977 | 1965 | 1973 | 1981 | 1983 | 1983 | 1967 | 1978 | 1964 | 1979 | 1985 | 1981 |
| Lowest Mean Min. Temperature (F) | -43.9 | -48.4 | -24.1 | -0.7 | 25.5 | 39.0 | 39.5 | 29.9 | 25.8 | 6.6 | -22.2 | -39.4 | 7.5 |
| Year Lowest Occurred | 1969 | 1979 | 1972 | 1972 | 1964 | 1963 | 1969 | 1969 | 1968 | 1988 | 1975 | 1964 | 1974 |
| Mean Precipitation (in.) | 0.48 | 0.45 | 0.30 | 0.38 | 0.86 | 1.74 | 2.05 | 1.85 | 1.17 | 1.02 | 0.71 | 0.73 | 11.74 |
| Highest Precipitation (in.) | 1.67 | 0.90 | 1.53 | 0.98 | 1.88 | 3.43 | 4.86 | 4.30 | 3.30 | 1.88 | 2.25 | 1.98 | 15.70 |
| Year Highest Occurred | 1963 | 1966 | 1979 | 1984 | 1977 | 1978 | 1981 | 1967 | 1961 | 1978 | 1968 | 1974 | 1981 |
| Lowest Precipitation (in.) | 0.12 | 0.01 | 0.00 | 0.00 | 0.00 | 0.37 | 0.62 | 0.32 | 0.01 | 0.11 | 0.00 | 0.03 | 6.73 |
| Year Lowest Occurred | 1978 | 1973 | 1987 | 1990 | 1963 | 1969 | 1978 | 1966 | 1984 | 1969 | 1983 | 1983 | 1969 |
| Heating Degree Days (F) | 2440. | 2047. | 1832. | 1149. | 642. | 261. | 174. | 348. | 687. | 1283. | 1893. | 2266. | 15022. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 7. | 0. | 0. | 0. | 0. | 0. | 7. |