Dry and 45 degrees, just right for blue jeans and taking it easy - I averaged about 16 mph (according to my new toy, a Blackberry with the "Fitness Tracker" Strava app.)
By pure coincidence I noticed a sort of milestone in my log: 1000 bicycle commutes (one way) logged at my current job, since June 2010! That's just over 10,000 miles.