Temperature at departure = 8° F (-13° C)
Windchill -8° F (-22° C). I was all set to just drive today, and then I saw it. Driving one of my sons to school, there it was up ahead -- the fluorescent yellow jacket of another bicycle commuter. I debated with myself all the way home. The winning argument was that if I didn't ride today I would miss my target miles for the month by 4.5 miles - and - this would be a new record low temperature for my ride in. So, I rode in. Interesting observation: my bike computer doesn't like temperatures under 12°F - at the end of the ride the display became weak and sluggish.
On the way in the door, a guy stopped and said "Brave soul." I replied with "It IS brisk." The good news, I wasn't ever really cold. It is all about the layers people.