I live in California - I'm barely worthy to read this thread, let alone post here, but here goes anyway. This was my second full "winter" of commuting. As DarthLefty mentioned, it was a mild winter: more rain than last year, but not as many days in the 30s. In fact, since I have trouble with my feet getting uncomfortably cold, I gave in and bought a pair of Lake winter boots last fall, but the weather this year was so (relatively) mild I never wore them once (there were a couple of days I wished I had, but I forgot I had them until I was almost to work).

As far as commute days: I work a 9-80 schedule, so I have every other Friday off. Mondays and Thursdays I have after-work commitments that involve hauling an inordinate amount of gear with me, so no bike commuting on those days; so that leaves Tuesdays, Wednesdays, and every other Friday for bike commuting. In the past two winters, I can only recall one or two Fridays each year that I didn't bike commute; I don't recall missing any Tuesday or Wednesday bike commutes (unless it was a vacation, holiday, or I was traveling out of town). For more exact detail, I'd need to look it up.