I think it was the wind + my mental state (new guy is AWOL. sigh.) I know that when I am upset about something, I can get deeply chilled on the warmest days.

Sue, you have a good point about the warming up. I wore the thin-ish gloves that I wear when running under my padded/fingerless biking gloves. All winter, I wore those thin gloves to run. I'd be cold for the first mile, and then comfortably warm, even in the '20s, after that.

Tulip--good for you about the commuting all winter. DC is one of my favorite cities, but I've never been there in the winter. 1:10 is a long time to be moving fast on a bike when it's cold out. You're going to love the spring! Are the cherry blossoms out? Enjoy!