Thanks for all the suggestions.

As I mentioned in my prior post, I'm probably going back to school in
September. The "campus" is an adjunct (basically one building) right down
town (9 miles from home), so a good lock-up area is questionable. Basically
I have three concerns:
1. Good lockup.
2. The safety of riding in down town rush hour traffic (having returned to
Winnipeg after a decade absence, I find the local driving ability to be
pitiful).
3. The safety of riding in poor road conditions in down town rush hour
traffic. I have ridden in snow, albeit years ago, but that was in minimal
traffic.

So, we'll see what happens. Personally, I don't find the winters here to be
too cold. I've run outdoors here for the past two winters. I only found it
cold below -25C (-13F). I'd like to ride, but the bus may turn out to be
simpler.