2026 Fire Season by the Numbers: Pacific Northwest Hardest Hit as Nation Logs 8.5 Million Acres Burned

As firefighters across the Pacific Northwest transition from active suppression to mop-up operations and fire management teams begin demobilizing, the 2026 wildfire season is recording its final tallies—and the numbers are stark. From lightning-sparked rangeland fires in eastern Oregon to wind-driven infernos in the Washington Cascades, the region endured one of its most destructive fire seasons on record.

National Totals

Through September 22, 2026, the National Interagency Fire Center reported:

56,794 fires burning 8,554,955 acres year-to-date
Fires: approximately 11% above the 10-year average
Acres: approximately 46% above the 10-year average
9 fatalities attributed to 2026 U.S. wildfires

For comparison, the full 2025 season through the same date had logged 51,012 fires burning 4,461,337 acres—roughly half the acreage of 2026 in the same timeframe.

Oregon: A Record-Breaking Year

Oregon’s 2026 fire season will be remembered primarily for the Big Grass Fire, which burned 578,637 acres across Malheur County and into southwestern Idaho, officially becoming the largest wildfire in the state’s recorded history when that milestone was confirmed in mid-August. The Rowe Creek Complex added another 373,927 acres in central Oregon, and the Grasshopper Fire on Mt. Hood National Forest burned nearly 94,000 acres near Dufur.

Combined, Oregon’s major 2026 fires burned well over one million acres—a figure that would have been nearly unimaginable even a decade ago.

Washington: Mass Evacuations, Cascade Fires

Washington’s season was defined by a series of large fires along the Cascade Range and in the state’s northeastern highlands. At the peak of the crisis in August, approximately 67,000 people were under evacuation orders—primarily in the Spokane area and eastern Washington—as fires threatened homes, infrastructure, and agricultural lands. The Sinlahekin Fire alone burned 166,000 acres in Okanogan County.

Washington enters fall still with seven large uncontained fires, including the Three Queens Fire at just 23% containment near Snoqualmie Pass and the Sisi Fire at 15% containment near the remote community of Stehekin.

Idaho: Disaster Declaration and National Guard Deployment

Idaho’s 2026 season was punctuated by the state of emergency declared by Governor Brad Little and the deployment of the Idaho National Guard to assist with the Big Grass Fire response in Owyhee County. The state’s fire suppression costs remained within projections as the season wound down, a relative bright spot in an otherwise difficult year.

What Drove the Severity

Climatologists and fire scientists point to a convergence of factors that made 2026 particularly destructive in the Pacific Northwest: an exceptionally dry winter and spring that left snowpack well below normal, a hot and dry summer with multiple heat dome events, and sustained drought conditions that desiccated fine fuels across the landscape. Fire meteorologists noted that even moisture-retaining mosses and lichens in the Washington Cascades were critically dry—an unusual and dangerous condition that expanded the zone of potential fire spread.