I went out for a run the other day. It was super nice since our college babysitter was still home on Christmas break so I got to do it in the middle of the day. I thought with the sun out it would be warm but it was pretty chilly. Once home the thermometer read 20 degrees but with the wind chill I think it was closer to 4 degrees. Fortunately I had some good layers and I felt just fine.
Brian took the big kids out sledding yesterday. When he came home he had icicles in his beard. I think this is a pretty common thing for him while he is working.