A severe heatwave ushered in the first day of summer Monday in the broiling Southwest, where extreme temperatures were blamed for at least five deaths over the weekend, according to AP. Towns along the Arizona-California border were getting the brunt of the extreme temperatures on Monday. In Palm Springs, the thermometer hit 121 degrees in the early afternoon. The temperature in Phoenix climbed past 111 degrees. A cool off was expected in the coming days. The National Weather Service reported 17 daily heat records were broken in Southern California on Sunday, because of a high pressure ridge over the Four Corners region of the Southwest. "People are assuming that it's going to be a little bit cooler in the morning, and the temperatures are still extremely hot," National Weather Service meteorologist Bianca Hernandez said. "If you can avoid being outside in general on days like this, that's the best thing."
