The snow kicked my hind end. It was a lot of fun on the flat bike paths, just a little more resistance than normal, but not too bad; reasonably good traction. But on the mile-long bridge I ride, the snowplows had tossed slush from the road onto the sidewalk/bike path which made for a slippery, crusty, tough-to-pedal-through mess. Top it all off and halfway across some dude passed me like I was sitting still. My excuse is that he had thinner tires...

Summary: good exercise, great temperature, pitiful fitness level in the rider. My wife rode 4 days this week; I only did 2. Must do better!