That is indeed good to know and not something I was aware of. We hit 110* today, so summer is upon us! We hit 110* today, so I know the feeling. This is my first summer with chickens, so it'll be a learning experience. It is quite common for 115*-117* here, although 120*-122* is not unusual. Meanwhile, the nights can drop 30*-40*. It makes for interesting camping trips!