If you thought it was hotter than usual last month, you were not imagining things. Las Vegas endured its second-hottest month in the last 81 years.
The average temperature this July was 95.8° at McCarran International Airport, which is only 0.4 degrees shy of the all-time record set in July of 2010. The average high temperature last month in Las Vegas was 106.9 degrees and the average low temperature was 84.6 degrees. The top ten hottest months in Las Vegas' weather history have all occurred in July since 2002.
The rest of the desert southwest was also stifling hot last month. Death Valley set the all-time record for heat with an average temperature of 108.1 degrees, smashing the prior record set in July 2017 by 0.7 degrees. Death Valley is universally regarded as the hottest place on Earth, due to its very low elevation and desert location.