RE: Your experience with cold weather and deer movement?
Been on stand many times with below zero temps and wind chills in the double digits down. It seems the movement is good, concentrating on food sources, deer "yard up" more, traveling in large groups, especially does, fawns, and subordinate bucks. Hunting these groups can be difficult. It seems the "matriarch" of the group is a mature doe with no interest in feeding but allowing the group to feed while she runs radar. Mature bucks seem to still be prowling for any late estrus does but catching them during daylight can be tough. I would concentrate on the edges of food plots on afternoon hunts with a stand back in the woods attempting to intercept a bruiser cruising for those does.
It's amazing the popping and cracking the trees go through as the wood freezes and expands. It always worries me that the bow will snap in two when I draw.