Karl, it was below freezing for a week, but now it has warmed up again. About 10C (50F) and rainy. First winter with chickens for us too, so it's a learn as we go sort of thing, but the coop is insulated, and I have a heater in there in case Siberia decides to throw some super cold weather our way. And I put up corrugated plastic around the run, so that it's sheltered from wind, snow and rain. But I keep the run door open throughout the day, and in -5C (23F) the chickens still spent a lot of time outside. We're discussing the issue of heating the coop with the better half, I want to keep it cold, and she isn't completely aboard. But we'll see. And I'm not planning on closing the coop door for any weather, but we'll see how it looks.