The Wildfire Season That Refuses to End

The first major fire of 2026 ignited on the eastern slope of the Sierra Nevada in the second week of May — a full four weeks earlier than the historical average for the region and a grim confirmation of what fire managers have been warning for years: the concept of a fire 'season' is becoming obsolete. By the time crews contained the Ridgecrest Complex fire in late June, it had consumed more than 85,000 acres of mixed conifer forest and chaparral, destroyed 340 structures, and forced the evacuation of three small communities whose residents had, in some cases, only recently returned from evacuations the previous autumn.

The numbers tell a story that is difficult to argue with. The total area burned annually in the western United States has roughly tripled since the 1980s, according to data compiled by the National Interagency Fire Center. The number of extreme fire-weather days — defined by the combination of high temperatures, low humidity, and strong winds that turns ordinary fires into uncontrollable conflagrations — has increased by approximately three weeks per year over the same period. What was once a predictable window of danger stretching from July through October has expanded into a nearly year-round threat in parts of California, Oregon, and the interior mountain West.

Maria Santos, a fire behavior analyst with twenty-two years of federal service, stood on a blackened ridgeline above the Ridgecrest burn scar and gestured at the landscape below. 'When I started this job, you could set your calendar by fire season,' she said. 'You knew when it would start, roughly how bad it would get, and when the rains would shut it down. None of that is reliable anymore. We had active fires burning in January this year. January. That was unthinkable a generation ago.'

The expansion of fire activity is colliding with a demographic reality that magnifies its consequences. An estimated 46 million housing units in the United States now sit within the wildland-urban interface — the zone where developed land meets undeveloped, fire-prone vegetation. That number has grown steadily for decades as housing costs in urban centres have pushed development outward into landscapes that have always burned and always will. The result is a vastly expanded footprint of structures, infrastructure, and human lives exposed to wildfire risk, and a suppression challenge that grows more expensive and more dangerous with every passing year.

Federal suppression costs have ballooned accordingly. The U.S. Forest Service now routinely spends more than $3.5 billion per year fighting fires, a figure that has roughly quadrupled in inflation-adjusted terms since the early 2000s. That spending increasingly consumes the agency's overall budget, crowding out the very prevention and forest-management work — prescribed burns, mechanical thinning, fuel-break construction — that could reduce the severity of future fires. Santos described it as a vicious cycle: 'We spend all our money putting out fires, which means we have no money to prevent fires, which means the fires get worse, which means we spend even more money putting them out. Everyone in the agency understands this. Nobody has figured out how to break the loop.'

The Ridgecrest Complex fire illustrated the dynamic with painful clarity. The area where it ignited had been identified in a 2019 fuel-management plan as a high priority for prescribed burning, but the work had been repeatedly deferred — first by budget constraints, then by air-quality regulations that limited the windows for controlled burns, and finally by the demands of fighting fires elsewhere. When the Ridgecrest fire started, it moved through dense, untreated fuel loads at speeds that overwhelmed initial-attack crews within hours.

Climate science has established the connection between rising temperatures and fire behavior beyond reasonable dispute. Warmer temperatures dry out vegetation earlier in the year and keep it drier for longer, extending the period during which fuels are primed to burn. Reduced snowpack means less moisture in the soil during the critical spring months. And shifting wind patterns have, in some regions, increased the frequency of the dry, gusty conditions that drive the most destructive fires. None of these trends are expected to reverse in the coming decades.

Communities in fire-prone areas are adapting, but the pace of adaptation lags well behind the pace of the threat. Some jurisdictions have adopted stricter building codes requiring fire-resistant roofing, ember-resistant vents, and defensible space around structures. A handful have gone further, restricting new development in the highest-risk zones entirely. But enforcement is uneven, political resistance to building restrictions is fierce, and the vast majority of the 46 million homes already in the wildland-urban interface were built to older codes that offer little protection against the intensity of modern wildfires.

Santos, who has spent more than two decades watching fires grow larger, faster, and less predictable, is not optimistic that the current trajectory will change without a fundamental shift in how the country thinks about fire. 'We treat wildfire as an emergency to be suppressed,' she said, gathering her gear as the afternoon wind picked up across the ridgeline. 'But fire is not an emergency. Fire is a permanent feature of this landscape. Until we plan for it that way — in our budgets, in our building codes, in where we allow people to live — we are going to keep having this same conversation, standing on top of the same burned hills, wondering why it keeps getting worse.'