Coldest so far was this week here in Salt Lake City, UT on my 6.5 mile commute. It was four degrees Fahrenheit when I left the house Monday morning. On top I was wearing a thermal baselayer, long-sleeved jersey, hooded sweatshirt, and a jacket as a windbreaker. On bottom I had cycling shorts and a pair of Bellwether cold weather cycling pants. To keep my feet warm I wear thick wool socks and Merrell hiking boots that are a size too big. In the winter I wear a thin balaclava under a Bern snowboarding helmet that has built-in earflaps. On really cold days like Monday I add the ski goggles. Snowboarding mittens keep my hands functional, although I do end up bunching my fingers up at the stop lights to keep them warmer. I have been really surprised at the performance of my Schwalbe Marathon tires in the snow and ice. I planned on buying studded, but didn't get around to it, and so far they have served me well. I did throw a Kenda MTB tire on the front when the snow was deeper this week, but the rear is still sticking surprisingly well.