July heat breaks records in Boise, Treasure Valley

As the seventh month of 2024 draws to a close, southwest Idaho has plenty of triple-digit temperatures and smoky days to look back on.

Boise saw its third-warmest July on record, with an average temperature (calculated by averaging daily highs and lows) of 82.8 degrees, while the second-largest wildfire in the nation has burned almost 300,000 acres 100 miles to the northwest.

The hottest Boise has been in July was an average of 83.8 degrees in 2021 and 83.1 degrees in 2007.

“We’ve had all kinds of streaks for temperatures above 100 or 95 or 99,” National Weather Service meteorologist Dave Groenert said.

Several Boise temperature records were broken this month. The temperature reached or exceeded 99 degrees for 17 consecutive days, smashing the previous record of 12 days in 2021.

There were five consecutive days with temperatures at or above 105 degrees, surpassing 2022’s record of four, and nine non-consecutive days with temperatures at or above 105 degrees, surpassing 1898’s record of five.

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