Problem is, snow removal equipment, including salt spreaders for the icy roads is very expensive, so the southern states simply don't invest in it only to have it sit around for 10 years, whereas thse of in the northern part of the country and Stewey's Canada see a plethora of such equipment making the roads at least endurable.
My concern is that the average home in the south is built on a cement "slab"... kind of one level with no basement, meaning that the water pipes are often enclosed in outside facing walls and subject to freezing and breaking. Here in the north, those kinds of considerations are second nature...