I don't let mine out during the winter because they don't want to go out. I enclose their run in tarps and plastic sheeting and lay down tons of straw or hay in the run and keep a heat lamp on 24/7 in their coop. Winters here are brutal like -40 below brutal. It was sooo cold last winter I brought them into the garage for the rest of the season which was sooo much easier to care for them as well as keep a closer eye on them. Cleaning out frozen waterers and coop cleaning when it's that cold out was not fun at all. I can't tell you how many times my gloves got stuck on the kennel door from changing their water. I opt for the garage coop again this year as well where the temps never get below 20