Granted, I'm in Georgia, but we do get a very wet cold here and a heck of a lot of ice.

I wore my USA Casual all winter with a pair of thick cotton kilt socks and was as good if not better than in pants. During the coldest days I'd have a sweater and jacket up top while outside.

The kilt just traps a huge heat pocket around the lower half where as pants expel any heat due to compression around the leggs.