| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | -5.5 | 6.6 | 26.5 | 44.7 | 60.4 | 70.9 | 73.8 | 68.8 | 55.3 | 31.0 | 7.9 | -1.6 | 36.6 |
| Highest Mean Max. Temperature (F) | 16.5 | 19.9 | 37.5 | 53.8 | 70.9 | 74.7 | 79.7 | 77.6 | 62.4 | 38.9 | 24.0 | 16.0 | 79.7 |
| Year Highest Occurred | 1985 | 2000 | 1992 | 1989 | 1993 | 1993 | 1990 | 1994 | 1997 | 1979 | 1979 | 1986 | 1990 |
| Lowest Mean Max. Temperature (F) | -26.3 | -16.5 | 15.8 | 34.3 | 46.2 | 67.5 | 68.7 | 62.4 | 41.9 | 22.3 | -2.9 | -35.2 | -35.2 |
| Year Lowest Occurred | 1971 | 1979 | 1972 | 1986 | 1992 | 1985 | 1984 | 1992 | 1992 | 1996 | 1990 | 1980 | 1980 |
| Mean Temperature (F) | -13.9 | -4.6 | 11.6 | 31.3 | 45.5 | 55.7 | 59.4 | 53.9 | 42.8 | 21.9 | -1.0 | -10.1 | 24.4 |
| Highest Mean Temperature (F) | 7.9 | 9.3 | 23.2 | 37.7 | 52.8 | 59.1 | 63.1 | 63.4 | 48.9 | 29.3 | 14.1 | 6.9 | 63.4 |
| Year Highest Occurred | 1985 | 2000 | 1992 | 1989 | 1993 | 1993 | 1988 | 1994 | 1995 | 1979 | 1979 | 1986 | 1994 |
| Lowest Mean Temperature (F) | -35.2 | -31.7 | -3.4 | 21.3 | 38.0 | 51.9 | 56.5 | 49.5 | 31.3 | 10.7 | -12.1 | -40.6 | -40.6 |
| Year Lowest Occurred | 1971 | 1979 | 1995 | 1986 | 1992 | 1985 | 1985 | 1986 | 1992 | 1996 | 1973 | 1980 | 1980 |
| Mean Min. Temperature (F) | -22.3 | -15.7 | -3.4 | 17.8 | 30.6 | 40.5 | 44.9 | 39.0 | 30.3 | 12.7 | -9.9 | -18.6 | 12.2 |
| Highest Mean Min. Temperature (F) | -0.8 | -1.4 | 8.8 | 28.5 | 37.8 | 45.6 | 50.6 | 49.2 | 35.9 | 20.2 | 4.2 | -2.2 | 50.6 |
| Year Highest Occurred | 1985 | 2000 | 1992 | 1990 | 1990 | 1988 | 1992 | 1994 | 1995 | 1980 | 1979 | 1986 | 1992 |
| Lowest Mean Min. Temperature (F) | -44.1 | -46.9 | -17.9 | 7.0 | 26.0 | 36.2 | 40.2 | 31.4 | 24.8 | -1.0 | -24.1 | -46.0 | -46.9 |
| Year Lowest Occurred | 1971 | 1979 | 1995 | 1972 | 1984 | 1985 | 1985 | 1986 | 1997 | 1996 | 1973 | 1980 | 1979 |
| Mean Precipitation (in.) | 0.34 | 0.18 | 0.13 | 0.14 | 0.45 | 1.99 | 2.30 | 0.85 | 0.73 | 0.60 | 0.51 | 0.38 | 8.60 |
| Highest Precipitation (in.) | 1.29 | 0.74 | 0.52 | 0.60 | 2.01 | 4.13 | 4.62 | 2.64 | 3.17 | 2.54 | 2.48 | 1.80 | 4.62 |
| Year Highest Occurred | 1978 | 1987 | 1979 | 1976 | 1994 | 2000 | 1984 | 1999 | 2000 | 1988 | 1982 | 1999 | 1984 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1996 | 1994 | 1993 | 1996 | 1996 | 1986 | 1989 | 1982 | 1988 | 1986 | 1984 | 1994 | 1996 |
| Heating Degree Days (F) | 2449. | 1949. | 1663. | 1014. | 605. | 276. | 178. | 352. | 675. | 1337. | 1976. | 2332. | 14806. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 7. | 7. | 0. | 0. | 0. | 0. | 14. |