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THIS ARTICLE IS republished from The Conversation under a Creative Commons license.
Dry conditions across Southern California in early January 2025 set the stage for a series of deadly wind-driven wildfires that burned thousands of homes and other structures in the Los Angeles area.
Ming Pan, a hydrologist at the University of California-San Diego’s Center for Western Weather and Water Extremes, tracks the state’s water supplies. He put Southern California’s dryness into perspective using charts and maps.
How Dry Is Southern California Right Now?
In early January, the soil moisture in much of Southern California was in the bottom 2 percent of historical records for that day in the region. That’s extremely low.
On January 8, 2025, the soil moisture content, as measured down to about 40 inches (100 cm), was in the bottom 2 percent historically for that day in areas around Los Angeles.
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