I have chicks I think the oldest is about 6-7 weeks, currently in garage. It will get to about 29 at the lowest until Chritsmas, with many nights in upper 30's, daytime 45-55 typically. Record low is about 7, but typical winter maximum low is about 23-25. Rare that we have frozen water until after Thanksgiving. I know to drop the temperature ect to condition to the cold. They are not ready for outside yet, just wondering when it might be possible.