I would set before the snow. Then the morning after, go scout when you check your sets. Nothing better than snow to show off where they like to run. You can learn more in a couple days after a good snow than in an entire season of trapping with no snow. I hope we get a couple inches of snow Sat so I can figure out what they are doing this year. Second year the farm has been in soybeans so the fields are bare now and they don't seem to be using the place much.