I try to do 42 miles every day, occasionally cutting it back to 30 at a convenient shortcut.
Today, at 14 degrees F, I stopped at 20 miles, and would have stopped at 15 if I could have.
It got up to 17 by the time I got home, and I was miserable.
Sitting in the warm house, sure is nice today - and I think I have decided not to do my daily loop below 20-30.
The Airdyne is looking pretty good to me now!