25 yo F
Year-round, except when it is really icy then I take the light rail part way to avoid dying on the very slippery/shady hill leading up to my work. But snow is fine by me, besides I am in Portland, OR so it is never very heavy.
23ish miles RT (I need an odometer).
Started biking 5 days a week in mid-December 2007 and still going strong...