Wow. I've always thought about Vegas as being hot.
:-)
It's a desert. It can bake you in the daytime and freeze you at night. Winters are "mild" but folks who have been there for a few years know it can be nasty in the winter.
I always tell people to bring at least one pair of jeans, a long-sleeved T-shirt and a medium weight jacket as well as thick socks. People in Vegas use anti-freeze to keep their cars from boiling over in the summer and freezing the block in the winter.
Nevada is actually the most mountainous state in the country. If you look at a topigraphical map, you will see is is one mountain range after another, running north and south, from one side of the state to the other. It funnels the wind (year round) so that the valley is subject to winds that just continue to circulate around the valley bowl until they finally subside.
Sometimes, the wind will blow for a week or more at a time, and that is when people start getting stupid and the crimes against people and property increase, and everything you touch will give you a shock.
I like the heat there, and the rainfall is only 3" a year. But the dust is not good for contact lens wearers. And some days, it's so hot that planes can't fly until the sun goes down. Windshield blow out because of the heat in an enclosed car. People keep a little extra padding handy so they can open the car door without burning their fingers.
And the rain causes flash flooding that is so bad that whole areas of the valley are closed and homes will wash away. In winter, your pipes can freeze and break because people don't know to winterize.
Anything else you want to know? Crime rate, pollution, etc.?