I live in Texas (NW of Fort Worth) where we have only had 5" of rain in the past 10 months and it's 105* daily in the summer... I didn't even really need to cut the one time I did. Just knocked down some odd tall weeds.
I'd love to have the problem of mowing as that would mean we have moved to a human hospitable part of the planet...
We average 6-8 hours a day at or above 100* for much of the summer. I am so glad I didn't use the recommended man J numbers or it would be unlivable in the house here.