July was the hottest single month ever recorded in the United States, according to the National Oceanic and Atmospheric Administration.
The average national temperature surpassed every previous monthly record in NOAA's dataset, which extends back to 1895.
The report said prolonged heat domes were a major factor, with persistent high-pressure systems trapping extreme heat across large parts of the country.
From the East Coast through the Great Plains and into the Southwest, several regions experienced unusually long periods of dangerous temperatures.
Nighttime temperatures were also exceptionally high. The lack of normal overnight cooling led to records for the warmest minimum temperatures across dozens of states, increasing the strain on residents and infrastructure.
The extreme heat also worsened drought conditions and elevated wildfire risks.
Millions faced continuing heat warnings and air-quality concerns, while electricity demand approached record levels as households relied heavily on cooling systems.
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July was the hottest month in the US since records began in 1895 https://t.co/4wLg6xH3NT
— WXOW 19 News (@WXOW) August 10, 2026
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