Lebanon county here, I just use all-season (Continental Extreme ExtremeContact DWS) tires, though I do have an AWD car. I previously had to commute down 897 through farm country and only once did I ever end up off the road, but that was ice anyway (and after I got off 897). If your commute keeps you on roads that get plowed in a timely fashion, all-season will likely be fine.

That said, if I had the money for a second set of tires and rims and a garage, I'd get a set of snow tires. If you can afford the best option, definitely go for it. Plus, it lengthens the life of your non-winter tires a bit since they'll be off the car for at least a month or two.