If you think this summer’s daytime heat was brutal, brace yourself—the nights are getting even hotter. New data shows summer nighttime temperatures have risen dramatically nationwide, surging by up to +17.7°F in places like Reno and +10°F in Las Vegas since 1970.

The reason? Climate change, urban heat islands, and our increasing reliance on air conditioning. During hot summer evenings, energy demands surge, grids strain, and communities suffer. Welcome to summer’s sleepless new normal.






