DEATH VALLEY NATIONAL PARK, Calif. The National Weather Service says California's Death Valley National Park tentatively recorded a high temperature of 129 degrees on Sunday, which would tie the all-time June record high for the United States.
The weather service's Las Vegas office on Monday posted to its website a photo of a Park Service thermometer showing the mercury on June 30.
The reading preliminarily ties the U.S. June mark of 129 degrees recorded on June 23, 1902, at Volcano, a former town near the Salton Sea in southeastern California.
The reading, however, is short of the all-time, world record 134 degrees set in Death Valley on July 10, 1913.
Meteorologist Chris Stachelski in Las Vegas says it will take a few months for Sunday's apparent record to be certified.