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July Sets Record as Hottest Month in US History

Monday, August 10, 2026 · 3 sources

July was the hottest month ever recorded in the US, with an average temperature 3.3F higher than the 20th century average. This record-breaking heat was felt across much of the country, with repeated heatwaves contributing to the milestone.

July was the hottest month ever recorded in the US, with repeated, scorching heatwaves across much of the country helping shatter all previous monthly temperature records. The National Oceanic and Atmospheric Administration reported that last month’s average temperature was 3.3F higher than the 20th century average for the contiguous United States, which excludes Alaska and Hawaii.

According to new data from the National Oceanic and Atmospheric Administration, this record-breaking heat was felt across much of the country. The data stretches back over 132 years of reliable measurements, making July the hottest month ever recorded in the US.

The 50+ takeaway: Heatwaves pose health risks

Go Deeper

What made July the hottest month in US history?

Repeated, scorching heatwaves across much of the country contributed to July being the hottest month in US history. The average temperature was 3.3F higher than the 20th century average.

How long do the temperature records stretch back?

The temperature records stretch back over 132 years of reliable measurements, making July the hottest month ever recorded in the US.

Which parts of the US are excluded from the temperature average?

The temperature average excludes Alaska and Hawaii, and only includes the contiguous United States.

Who reported the new data on the record-breaking heat?

The National Oceanic and Atmospheric Administration reported the new data on the record-breaking heat.

How much higher was the average temperature in July compared to the 20th century average?

The average temperature in July was 3.3F higher than the 20th century average for the contiguous United States.