Or maybe they'd just hibernate.

What happens to zombies in the winter, especially in places that receive large amounts of snow? I would think that those places would become pretty much inhospitable to the walking dead. After all, moving so slow, I have to believe it would be pretty easy to freeze. Then what? Would they just have to stand there and wait to thaw out? But what about the whole freeze/thaw process that wreaks havoc on roads and buildings and other infrastructure? I mean, sure, they're already dead, but what about frostbite? Would it still affect them so that after they're thawed they just start losing limbs and other extremities? All told, I'm not sure zombies would be able to survive the winter because in general, they're simply not dressed for it, and then there's the lack of food and ease with which a still living person might be able to get their hands on one of those big snow plows and take them all out. That's another thing. Why in the movies doesn't someone go find one of those big snowplows and use that for transportation? It would be a lot easier to hit zombies with a plow than with a car, and would probably result in a lot less damage to the vehicle. Anyway, back to the topic at hand.

Besides freezing, there's also all of the snow. Now, zombies have never seemed to be very agile except in spurts and except for those really fast moving ones that I think would probably be done away with in the first freeze, though it would be kind of funny to see them run and go sliding around because they've lost control. Still, as a group, I'm not sure zombies would do very well with snowdrifts. They might trip and fall down shuffling into one, and then they'd freeze and die again or whatever. It would, however, make shoveling a path or driveway kind of scary because you'd never know when your shovel might hit one, or when one might burst out of the snow and come after you. Really though, it would make more sense for the zombies to stay in the south, or for those in the north to migrate south in the winter like birds or butterflies, and avoid the snow all together. Plus, I've got to believe that at least some of the still living people would head south when it got colder, so the zombies would be just following their food source.

And with that I think I just put much more thought into this than I should have, so I shall end it here, but it was kind of fun to think about.

(And yes, I do know of at least one movie where the zombies were out in the snow, but I've never seen it, have heard it isn't that good, and don't plan to watch it.)