Odds are you don’t do it in winter. Odds are equally good that you don’t have a good reason that you don’t.
Go winter car camping, that is.
There is no good reason not to camp in winter.
You hate being cold when you sleep at night? Bad excuse for two reasons: One, sub-zero sleeping bags. Two, fleece blankets, layers and layers of fleece blankets. There is no better sleep than that had snuggled in a comfy, coldbomb-proof sleeping bag, the world outside crisp, quiet and dark — and with minimal threat of ornery critters lurking about.