30F today. Was maybe a little overdressed, once I got to work and stripped most of my gear off I was still sweating for five minutes.

Notes -
Shaved my head this week. The headband under the helmet usually works pretty good, but on the one faster section I started getting a brain freeze!
I've got a studded front tire on. Really didn't need it today, but I want to break it in and you know, just in case. Definitely slower with the tires aired down.
Got some great cheap ski gloves at Costco, my hands are soooo warm. But, they don't grip real great, so they feel slippery on drop bar brake levers. When it's cold enough to need the ski gloves I have to ride my hybrid since it has the mtb style levers.

Otherwise, a good ride! Bring on winter!