Been running for the last 20 some odd years now. Always ran outside during winter (minus the occasional treadmill run when the roads were too dangerous) and I think I'm done with running outdoors during winter. I'd say with the exception of the occasional sunny day, I'm going to start doing all my runs on the treadmill. Winter running is the worst. It's always done in the dark, no one shovels their side-walks, it's freezing cold (3 degrees in my area this morning), it's dangerous.
Anyone else do all their runs on the treadmill during the winter months?