Cyclocross!

You guys know the drill by now. 40 degrees out, I'm going with tights, shirtsleeve jersey, thermal jacket and thin thermal gloves. Days like today make it easy to dress, cold, clear, stable weather, easy riding. For those who get cold feet easily some toe covers would be good today too, especially if your commute has a headwind.

As a side note, if you haven't seen a cyclocross race I highly recommend it. Family friendly, short courses and races make for interesting spectating, and usually they happen in a local city park so they are within biking distance for many.