A list of the temperatures around Wyoming yesterday and last night can be seen here. Yesterday's high temperature in Riverton was -1 F and last night's low was -20 F.
It's a safe bet that I wear hand-knit wool socks, cowls/scarves, hats, and mittens whenever I go out. My winter survival kit is in the trunk of my car, and the gas tank is always full. Like it or not, winter is here, and it's important to be prepared.
Do you have an emergency kit in your vehicle?
I hope the wind comes up today and blows this cold air out of the valley. If not, the bitter cold could hang in here for days.