For us your temps are quite balmy !! I wondered how my ladies would take to the cold also, but aside from complaining they do fine. I have kept the area around the coop shoveled, and they've just been scratching the snow and ice away and making their dust nests in the dirt in the sunshine (when we HAVE sunshine!). I do have a raised coop and I stuffed a BUNCH of pine straw under there. They hunker down in that too when it's snowing. I have closed off the north and west sides to block the prevailing winter winds. Since I have a dog that loves the cold (Great Pyrenees) it has helped me understand that not every other creature gets cold like we humans do, nor does it bother them like it does us. Most creatures adapt to their surroundings much better than humans do !!