Hi I am new here
My 3rd year with chickens at my current place. I find they do not like deep snow, but will come out if I shovel most of the snow away from their pop door. I put down some straw/hay outside for them to scratch in and keep their toes toasty. They don't like wind and and if it is -30C they tend to stay in, but nice days -15 or so they are outside. I use deep litter in my coop over winter and clean it out in the Spring.