Originally Posted by
caloso
Yes. Exactly those conditions. Frost on extremities due to wind chill, but because of the metabolic effort the core is quite warm and a double layer (tights over bibs) is uncomfortable. To me at least. But yes, you've perfectly described the conditions I'm talking about, which are very common in NorCal during the winter.
Eep! I'm glad there's no risk of me going over 20 mph on my commute. Ever. I wonder what effect 90% humidity has on the frosting temp...?