California Faces Prolonged Summers and Reduced Snowpack by Mid-Century
California Faces Prolonged Summers and Reduced Snowpack by Mid-Century
US · Published Oct 25, 2026
• California's Fifth Climate Change Assessment projects significant changes to the state's climate by the middle of the century.
• Average temperatures are expected to rise by approximately 4°F, leading to longer summers that could last up to 135 days annually, compared to the current average of 90 days.

Impact & Risks

The projected climate changes pose severe risks to California's environment and residents. Prolonged summers and higher temperatures will increase the frequency and intensity of wildfires, with a 44% to 69% higher likelihood of lightning-induced fires in northern forests. Reduced snowpack will lead to water shortages, affecting agriculture, drinking water supplies, and hydroelectric power generation. Additionally, exposure to wildfire smoke is expected to result in thousands of additional deaths annually. These changes will have far-reaching consequences for public health, infrastructure, and the state's economy.

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