Truthfully, I don't like road riding below 40. I've been mountain biking in the 30s. My coldest road ride was around 35, with flurries coming down. Well, I was on my mtb, on the road.
It's going to be warm next week, so I probably will ride my commuter bike to a couple of appointments. I really don't want to get my Kuota all dirty from the road and have to take it off of the trainer.
I like doing different outdoor sports when its cold. I hike and walk during the "in between" times before there's any snow. Once March comes, I'm more apt to go on a ride if it's close to 40.
I give credit to you hardy folks who ride when it's 17!