Death Valley, California, has the highest temperature in the world in 87 years.
The temperature in the valley was 54.4 degrees, Qadin.Net reports quoting HaberGlobal.
Earlier, in 1913, the temperature in the valley was 56.7 degrees, the highest in the world.
The impact of high temperatures on the west coast of the United States will continue in the coming days.
The existing heat wave will extend from Arizona to Washington. Residents of California, Nevada, Arizona and Utah have been warned to spend less time outdoors.
The World Meteorological Organization says July has been marked as the "warmest month" in the Northern Hemisphere, with sea ice in the Arctic falling to its "lowest level."