Originally Posted by
Tourist in MSN
I now have a text file on my computer in five degree (F) increments of what to wear from 20 degrees (F) up to 55 for bicycling.
I spent 8 winters in Fort Collins CO w/o owning a car and commuted to work by bike, though it was five miles so not extreme.
I had a similar type list though with larger increments -10F/10F/30F/50F each had their own choices. I also set up a bike with studded tires to ride days I needed to go across snow/ice packed roads. The -10F did happen a few times though fortunately not often. From that list/experience I can find ways to comfortably tour down to ~20F but not really lower than that.