34F/1C this morning. Something about the frost on my tomato plants made it seem colder. I actually made the switch to knickers and full fingered gloves. A polartec fleece replaced my jersey. It lets enough air through that I don't overheat and it breaths well, but I find it too bulky to wear under a jacket or vest. My legs were slower. I've never been able to figure if it is just the restriction of something over my knees or if it is just the cold's effect. Traffic was very light, I was actually able to make both of my difficult left turns without unclipping. Great commute, except I worked too late to get my extra hill climb in.