Yes, snake boots would be a neccesity here. I have only lived here ( south west GA) for about 14 months and have seen 12-13 rattle snakes, 2-3 moaccasins and countless non venomous species. Even in winter months the temp doesn't drop below 60's in the day. Probably 5 out of 12- 13 rattlers were seen in Oct - Dec range. Though they were not really responsive they were out of the ground. We actually have a festival here in Jan. called the "Rattle Snake round up" I hope this was of some help to you.
Absolutely needed and necessary.
As waltor stated it doesn't get cold enough for them to completely stop moving about. Those Cottonmouths can be really aggressive and will come looking for trouble.
If you will be wading thru water or easing along swamp edges I would go a step farther and get some snake proof chaps as well and watch your hands, most snake bites are to the hand/forearm area.
Don't assume that when fall comes, or hunting season, that the big bucks, and big bulls leave. Whitetail deer bucks especially, simply hide. And they hide very well. Mule deer bucks may leave a little. Bull elk may leave, but don't assume they do. Don't assume any of them do. I mean - where would they leave to? (Just another place where, for the most part, they would be hunted.) These big animals have the ability to hide in very small, very obscure places. So, embrace the fact (...