If you're going to be standing or trekking in snow for a significant period of time, you will need to take a closer look a your shoes' temperature rating.
Snow & ice quickly turn into water & if your shoes can't handle stepping in a puddles of mush without sopping it all up, they won't make much of a winter shoe.
The deeper & strategically angled outsole grips, the better they will be at allowing you to plow through snow & keep you steady on ice like a Canadian pro.