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2021 California wildfires

overview of major wildfires in California during the year 2021

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 25, 2026
Entity authorityQ105555497 ↗
Source-derived summary

By the end of 2021, a total of 7,396 wildfires burned 2,569,386 acres (1,039,794 ha) across the U.S. state of California. Approximately 3,629 structures were damaged or destroyed by the wildfires, and three firefighters died during the wildfire season.

The wildfire season in California experienced an unusually early start amid an ongoing drought and historically low rainfall and reservoir levels. In January 2021 alone, 297 fires burned 1,171 acres (4.74 km2) on nonfederal land according to the California Department of Forestry and Fire Protection, which is almost triple the number of fires and more than 20 times the acreage of the five-year average for January. The January fires were exacerbated by unseasonably strong Santa Ana winds, and some of them burned in the same areas as previous fires like the CZU Lightning Complex.

The long term trend is that wildfires in the state are increasing due to climate change in California. The 2021 wildfire season was exceptionally severe in California, although it did not approach the extent of the previous year's wildfire season, which was the largest season in the state's recorded history. By July 11 of that year, more than three times as many acres had burned compared to the previous year, with drought, extreme heat, and reduced snowpack contributing to the severity of the fires. The state also faced an increased risk of post-wildfire landslides.

As of August 18, 2021, the state of California was facing "unprecedented fire conditions" as multiple fires including the Dixie Fire, McFarland Fire, Caldor Fire, and others, raged on.

Editorial summary

This brief starts where responsible research should: with the source description of “2021 California wildfires” as overview of major wildfires in California during the year 2021. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—2021—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where California, wildfires and overview can be independently traced.
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Why this record matters

The subject matters to the general reference register because the source frames it as overview of major wildfires in California during the year 2021. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 25, 2026. The linked authority identifier is Q105555497. The first chronological checks are 2021.

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Source & attribution

This entry incorporates text from “2021 California wildfires” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.