| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | -13.5 | -11.8 | -5.8 | 13.0 | 35.2 | 59.6 | 67.1 | 58.1 | 42.1 | 17.8 | -2.7 | -11.6 | 20.6 |
| Highest Mean Max. Temperature (F) | 8.2 | 18.8 | 10.1 | 32.3 | 49.6 | 64.0 | 73.3 | 66.5 | 48.7 | 29.1 | 17.1 | 0.8 | 73.3 |
| Year Highest Occurred | 1981 | 1989 | 1996 | 1998 | 1990 | 1998 | 1993 | 1979 | 1998 | 1993 | 1979 | 1977 | 1993 |
| Lowest Mean Max. Temperature (F) | -31.9 | -32.5 | -17.0 | -2.2 | 28.7 | 54.3 | 61.6 | 52.2 | 31.0 | 5.5 | -22.3 | -28.9 | -32.5 |
| Year Lowest Occurred | 1990 | 1984 | 1972 | 1985 | 1971 | 1988 | 1980 | 1981 | 1992 | 1988 | 1988 | 1991 | 1984 |
| Mean Temperature (F) | -22.1 | -21.4 | -17.0 | 0.5 | 25.4 | 48.2 | 54.7 | 47.6 | 34.0 | 10.0 | -10.9 | -20.0 | 10.8 |
| Highest Mean Temperature (F) | -0.8 | 7.6 | -2.2 | 17.5 | 35.6 | 52.0 | 60.7 | 56.2 | 39.4 | 22.2 | 8.6 | -10.1 | 60.7 |
| Year Highest Occurred | 1981 | 1989 | 1998 | 1998 | 1990 | 1998 | 1993 | 1979 | 1998 | 1993 | 1979 | 1977 | 1993 |
| Lowest Mean Temperature (F) | -37.3 | -40.7 | -30.0 | -14.6 | 17.8 | 44.2 | 49.5 | 41.8 | 24.6 | -1.8 | -28.2 | -35.3 | -40.7 |
| Year Lowest Occurred | 1990 | 1984 | 1972 | 1985 | 1978 | 1978 | 1991 | 1996 | 1992 | 1988 | 1988 | 1991 | 1984 |
| Mean Min. Temperature (F) | -30.7 | -31.0 | -28.1 | -12.1 | 15.6 | 36.7 | 42.2 | 37.0 | 25.9 | 2.1 | -19.0 | -28.4 | 0.9 |
| Highest Mean Min. Temperature (F) | -9.9 | -3.6 | -13.4 | 2.6 | 24.2 | 40.0 | 48.1 | 45.8 | 30.1 | 15.2 | 0.1 | -20.0 | 48.1 |
| Year Highest Occurred | 1981 | 1989 | 1998 | 1998 | 1995 | 1998 | 1993 | 1979 | 1998 | 1993 | 1979 | 1983 | 1993 |
| Lowest Mean Min. Temperature (F) | -47.4 | -49.0 | -43.0 | -27.0 | 8.5 | 33.5 | 36.5 | 30.0 | 18.2 | -10.3 | -34.2 | -44.4 | -49.0 |
| Year Lowest Occurred | 1971 | 1984 | 1972 | 1985 | 2000 | 1994 | 1991 | 1991 | 1992 | 1996 | 1988 | 1974 | 1984 |
| Mean Precipitation (in.) | 0.35 | 0.24 | 0.15 | 0.19 | 0.10 | 0.76 | 0.76 | 0.95 | 0.51 | 0.74 | 0.33 | 0.29 | 5.37 |
| Highest Precipitation (in.) | 1.65 | 2.11 | 0.41 | 2.40 | 1.09 | 4.60 | 2.40 | 3.11 | 2.78 | 2.45 | 1.49 | 0.88 | 4.60 |
| Year Highest Occurred | 1982 | 1995 | 1993 | 1990 | 1976 | 1980 | 1999 | 1994 | 1976 | 1998 | 1976 | 1985 | 1980 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.04 | 0.00 | 0.00 |
| Year Lowest Occurred | 1990 | 1991 | 1997 | 2000 | 1999 | 1994 | 1992 | 1995 | 1995 | 1980 | 1980 | 1995 | 1990 |
| Heating Degree Days (F) | 2703. | 2422. | 2526. | 1938. | 1232. | 506. | 325. | 542. | 930. | 1699. | 2278. | 2638. | 19739. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 4. | 2. | 0. | 0. | 0. | 0. | 6. |