2025 wildfire season: air quality in review

2025 Wildfire Season: Air Quality in Review

A review of smoke impacts during the 2025 wildfire season in Washington.

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Smoke from the Bear Gulch Fire, the largest wildfire in Olympic National Park history, had significant impacts. The Wenatchee area saw smoke effects from the Labor Mountain Fire, but recent rain and cooler weather signal the end of the wildfire season.

It is a good time to reflect on this year's wildfire season from an air quality perspective. Initially, the smoke season started quietly, with few days of high PM2.5 levels until mid-August.

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Author's summary: Reviewing the 2025 wildfire season's air quality impacts.

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Washington State Department of Ecology Washington State Department of Ecology — 2025-10-18

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