| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | -5.0 | -0.5 | 12.8 | 30.3 | 50.4 | 65.3 | 68.2 | 61.4 | 46.5 | 23.1 | 3.3 | -0.4 | 29.6 |
| Highest Mean Max. Temperature (F) | 23.4 | 14.7 | 22.0 | 38.4 | 57.8 | 70.4 | 72.9 | 71.0 | 53.7 | 31.2 | 20.4 | 11.5 | 72.9 |
| Year Highest Occurred | 1981 | 1997 | 1981 | 1995 | 1990 | 1988 | 1993 | 1977 | 1974 | 1979 | 1976 | 1986 | 1993 |
| Lowest Mean Max. Temperature (F) | -29.3 | -25.0 | -1.3 | 21.6 | 44.1 | 60.5 | 60.0 | 55.4 | 33.6 | 13.8 | -8.4 | -18.3 | -29.3 |
| Year Lowest Occurred | 1989 | 1974 | 1971 | 1986 | 1992 | 1978 | 1981 | 2000 | 1992 | 1982 | 1994 | 1980 | 1989 |
| Mean Temperature (F) | -15.8 | -12.6 | -2.1 | 15.1 | 37.8 | 52.1 | 55.0 | 48.5 | 35.8 | 14.1 | -6.7 | -11.0 | 17.5 |
| Highest Mean Temperature (F) | 9.0 | 4.3 | 7.6 | 28.8 | 43.3 | 54.6 | 58.3 | 54.0 | 42.9 | 22.8 | 8.1 | 2.0 | 58.3 |
| Year Highest Occurred | 1981 | 1998 | 1981 | 1995 | 1995 | 1971 | 1993 | 1977 | 1997 | 1979 | 1976 | 1986 | 1993 |
| Lowest Mean Temperature (F) | -38.4 | -35.2 | -16.2 | 3.6 | 28.5 | 48.3 | 49.4 | 43.8 | 23.1 | 3.6 | -18.7 | -28.0 | -38.4 |
| Year Lowest Occurred | 1989 | 1974 | 1971 | 1986 | 1992 | 1978 | 1981 | 1996 | 1992 | 1982 | 1994 | 1980 | 1989 |
| Mean Min. Temperature (F) | -26.5 | -24.7 | -16.9 | -0.1 | 25.2 | 38.8 | 41.8 | 35.6 | 25.0 | 5.1 | -16.6 | -21.6 | 5.4 |
| Highest Mean Min. Temperature (F) | -5.4 | -5.5 | -6.7 | 19.1 | 30.6 | 41.7 | 45.2 | 42.0 | 34.8 | 14.4 | -4.2 | -7.6 | 45.2 |
| Year Highest Occurred | 1981 | 1998 | 1984 | 1995 | 1995 | 1995 | 1995 | 1997 | 1997 | 1979 | 1976 | 1986 | 1995 |
| Lowest Mean Min. Temperature (F) | -47.5 | -46.6 | -31.2 | -14.4 | 12.9 | 33.5 | 38.5 | 30.8 | 12.6 | -6.6 | -29.1 | -37.7 | -47.5 |
| Year Lowest Occurred | 1989 | 1990 | 1971 | 1986 | 1992 | 1979 | 1985 | 1981 | 1992 | 1982 | 1994 | 1980 | 1989 |
| Mean Precipitation (in.) | 0.46 | 0.33 | 0.34 | 0.20 | 0.62 | 1.27 | 1.57 | 1.70 | 1.16 | 0.74 | 0.41 | 0.48 | 9.28 |
| Highest Precipitation (in.) | 1.17 | 1.56 | 1.50 | 0.69 | 2.05 | 2.49 | 3.69 | 3.17 | 3.55 | 2.41 | 1.35 | 1.03 | 3.69 |
| Year Highest Occurred | 2000 | 1985 | 1999 | 1998 | 1998 | 1998 | 1982 | 1994 | 1987 | 1986 | 1971 | 1998 | 1982 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 0.01 | 0.00 | 0.00 | 0.17 | 0.40 | 0.42 | 0.04 | 0.05 | 0.02 | 0.00 | 0.00 |
| Year Lowest Occurred | 1996 | 1993 | 1995 | 1992 | 1992 | 1993 | 1995 | 1978 | 1984 | 1984 | 1983 | 1983 | 1993 |
| Heating Degree Days (F) | 2506. | 2175. | 2079. | 1499. | 844. | 388. | 311. | 511. | 878. | 1578. | 2151. | 2360. | 17280. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |