We are in the middle of a major ice and sleet storm. I can spy on my hens by looking out the window, they are all under the coop hanging out. I made them a "chicken bowl" of chickens friendly leftovers and brought it out the them and put it under the coop. They seem fine! It's so funny they don't want to be IN the coop, according to my thermometer in the coop, it is 30 degrees F, but outside it is 28F. We built our coop about 20 to 26 inches off the ground, because the ground was so uneven it was easier this way, and under the coop is the chickens favorite spot when it is hot, weather is nasty, or they just want to relax. In bad weather they come out the pop hole in the morning and go right under, where it stays nice and dry. I never close them in the coop since the run is secure, and even in a rainstorm they like to be outside, just under the coop.