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Dangerous heat across the U.S. has impacted millions of people, with temperatures breaking records in some areas and even causing death. Electric bills are also expected to increase this summer as Americans fight to stay cool at home. Here is how the extreme heat is affecting the country.

California heat wave temperatures

In California’s Death Valley on Sunday, temperatures reached 129 degrees Fahrenheit, tying the area’s daily heat record set in 2007, according to the service.

At least one person in Death Valley died and another was hospitalized in Las Vegas for heat exposure on Sunday. The person who died was not identified but the pair was part of a group of six motorcyclists. The other four were treated at the scene. Emergency helicopters could not respond because they cannot safely fly at temperatures higher than 120 degrees.

Most of Los Angeles County is under an excessive heat warning or heat advisory on Monday, according to the National Weather Service.

Preliminary reports on Sunday showed daily heat records were broken in two cities just northeast of Los Angeles. Palmdale reached 114 degrees, and Lancaster got up to 115 degrees, breaking the city’s record.

NWS Los Angeles also warned that high wind gusts and hot and dry conditions could exacerbate wildfires in the mountains, deserts and interior valleys, with small fires at risk of growing.

At least 21 wildfires are burning in California, forcing evacuations in some parts.

Even Northern California and the Pacific Northwest are experiencing extreme heat, with the city of Redding, California, reaching a record 119 degrees this weekend and several cities in Oregon, including Portland, breaking daily heat records with temperatures expecting to persist, according to the National Weather Service Portland.

Read the entire article on Yahoo News.