When is it to hot to cut the grass?

Here in Jersey it's been hovering in the high nineties, probably hit 100* today. We are having heat advisories. Should I cut my lawn? What do people do in Arizona?
Sorry, I was a bit abrupt. I imagine those in Arizona can employ workers from south of the border that can work with the heat and appreciate the job opportunity. (nothing wrong with that) It IS hot in NJ, I agree. So, put on a skirt, plug in your mower. Then you can come over and hear what 1.5 watts can do. Real men don't need much wattage!! HA HA
Post removed 
It is always too hot to mow the grass except when it is too cold. I gave up yard work when my kids were old enough to do it and now hire a service. Weekends are too short already.