I've seen people wearing coats at 80. (Given there are a lot of stoners and tweakers around here.) Hell, I was born in Milwaukee and I still consider anything under 90 to be [tornado fang]ing cold. Granted I've lived here most of my life.
But yeah, in the fall and winter we average out around the 60's (if I've been paying attention to the weather lately), but in the spring we move up to our average 90's and in the summer I think we topped 120 last year or the year before last.
We actually have two temperatures. Real temp and tourist temp. Tourist temp is what they put on the news, but when I go outside and look at the thermometer, it's at least ten degrees higher.
But yeah. Nevada's basically [tornado fang]ing hot plus aliens. The fun part is, once you leave Vegas itself, the rest of the state is at least 30 degrees cooler.