I guess I am fairly sure they will survive the long, hot summer here in Central Florida. The real problem is that it is our first time with chicks and we are not sure we will survive with all the worrying we do. First its pasty butt, then making sure they are warm enough, putting them in the coop and run for the first time, trying to get them to put themselves to bed on their own, worrying about predators keeps us up at night. Heat is just another thing for us to worry about and I hope they survive and fare well through it all. We may not.