California Faces Drastic Snowpack Shortage Ahead of Summer

Unusually warm conditions and early snowmelt raise concerns about water supplies, wildfire risk, and environmental strain in the months ahead.

Apr. 3, 2026 at 10:22am by Ben Kaplan

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A sweeping, atmospheric landscape painting in muted tones of gray, blue, and white, depicting a snow-capped mountain range partially obscured by thick fog, with a small, isolated structure barely visible in the distance, conveying the overwhelming scale and power of the natural environment.The dramatic decline in California's snowpack foreshadows a challenging summer ahead, as the state grapples with the impacts of climate change on its aging water infrastructure.San Francisco Today

California is heading into the warmer months with one of the lowest snowpacks ever recorded, raising concerns about water supplies, wildfire risk, and environmental strain in the months ahead. Measurements show the state's snowpack is just 18% of average, the second-lowest on record, as unusually warm conditions dramatically altered how winter precipitation fell, causing an early snowmelt.

Why it matters

Snowpack plays a central role in California's water system, supplying roughly 30% of the state's water needs. This year's low levels mean less meltwater will be available during the dry months, compounding the problem of earlier melting that shifts water availability forward and increases the likelihood of shortages later in the year.

The details

The California Department of Water Resources found that in the Northern Sierra Nevada, where the state's largest water supply reservoirs are located, the snowpack is just 6% of average. Despite near-average precipitation this winter, unusually warm conditions in March caused much of the moisture to fall as rain instead of snow, leading to an early snowpack peak around February 24, more than a month ahead of the historical norm.

  • On April 1, the snowpack reached just 18% of average, the second-lowest on record.
  • The snowpack peaked around February 24, over a month earlier than usual.

The players

California Department of Water Resources (DWR)

The state agency responsible for managing California's water resources and measuring the snowpack.

Jeff Mount

A senior fellow at the Public Policy Institute of California's Water Policy Center who said this year's conditions are especially concerning.

Karla Nemeth

The director of the California Department of Water Resources who said the state has "skipped spring" and dropped into a summer heatwave.

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What they’re saying

“It didn't snow where we needed it to snow, and where it did snow, it didn't stick. This is going to be an ugly summer.”

— Jeff Mount, Senior Fellow, Public Policy Institute of California's Water Policy Center

“To me, this is another reminder that aging water systems need to be retrofit for more volatile precipitation patterns. We're seeing fewer, warmer storms and shorter wet seasons. Future water supplies will depend upon our ability to capture water when it's available and manage it more efficiently.”

— Karla Nemeth, Director, California Department of Water Resources

What’s next

The implications of the low snowpack extend beyond water supply, as earlier snowmelt lengthens the dry season and increases wildfire risk, while reduced river flows threaten fish and wildlife habitats. Water managers will need to adapt aging infrastructure to capture and manage water more efficiently during increasingly volatile precipitation patterns.

The takeaway

This year's record-low snowpack in California is a stark reminder of the state's vulnerability to the impacts of climate change, underscoring the urgent need to modernize water infrastructure and management strategies to ensure reliable supplies during increasingly unpredictable weather patterns.