It's F-F-FREEZING! This forum inspired me to set aside my trainer and start winter riding in Westchester county NY this January. I've been really comfortable on 40 mile rides down to 34 degrees. However, yesterday I went out in windy 26 degree conditions and found it pretty punishing.
I was comfortable everywhere except a numb face and -the worst part- frozen sinuses from the deep breathing the cold air. I ended up bailing on the ride after only 25 minutes and had a sinus headache for hours afterward.
So hats off to all you hardy riders that persist in going out in temps below 30! I can work around a cold face but I don't think that I can put up with the sinus problem. I'm skeptical that breathing through a face mask will solve this problem for me. Does it make a big difference? How do those of you who ride in the 20s and below deal with this?