I don't ride in rain. Maybe a light drizzle, but usually not even that. Part of it that I don't have the right gear, part of it is that I just don't enjoy it. I don't want to show up at work drenched and extra sweaty (rain gear just doesnt breathe the same). Any kind of frozen rain is definitely out. I didn't ride in the hottest part of the summer when it was still hot in the mornings, but I may try it next year and see how sweaty I really am upon arrival.