Dave:
I'm just glad I don't live in Las Vegas or Phoenix.
It MAY get into the nineties or 100s in Orange County during the summer; in the two cities I just mentioned, it WILL get into the nineties or 100s, guaranteed, and far more often.
Matt
PS--my mom lives in Las Vegas, near the mountains, and even though it is warm, her area is cooler than the strip area by about 8-10 degrees. The first time I went to visit her, it was raining in SO Cal, and while at her house the weather brought rain and snow to the nearby mountains.