Oh, no biggie, Beat - I certainly understand why someone would be unwilling to live here.
The summertime heat + humidity is freggin' miserable. If you aren't used to it certainly you wouldn't want to have to become used to it.
But - on the flipside of that coin are those of us who were born and raised here. I've been here all my life and miserable summers are simply one more aspect of yearly life. I can't say that I enjoy it - though Louisiana having a huge number of really nice lakes makes up for it somewhat and the heat is a great excuse for going to the lake on the weekend...