How bad does the weather have to get before you stop exercising outside??

I do most of my exercise outdoors year round. I will do spin class in the winter and sometimes the treadmill but generally only if it's raining and even then sometimes I do the outdoor workouts anyway. I figure sometimes it rains in races so why not get a little practice.

That said, it rarely gets below 55 here so it's not a big deal to workout outdoors. I just put on more layers.

The bike got racked last month and will come back out in March.  The only time you won't  find me running outside is when the ice is to bad on the back trails.  It's hard to see blac**** in the morning even with a flashlight.
Rob