Here's a couple of pics of a doe during the heavy part of the snow storm we had last Thursday. We got about four inches and most of it is still with us. Notice the snow on the deer's back. A deer's winter coat is incredibly well insulated. It's winter coat is generally two inches longer and darker than the summer coat. It is also thicker and the hairs are hollow which provides even more insulation. The snow will not melt from the deer's body temperature. They will either shake it off or the sun will melt it after the storm.