Water Year 24-25

You’re viewing archived information from a previous water year. For the most current data and updates, visit the Water Year 25–26 page.

November 3, 2025

Statewide Dashboard

Water Year in Review:

Each water year tells its own story, and this year was no exception. Read on to see the final outcome.

Because of data availability issues with the NWS feed we typically use, we have made some adjustments to our verification framework for this report. For statewide precipitation totals, we have utilized California Water Watch estimates. Year-end totals for the Core Supply are estimated using station data from the regional precipitation indices produced by the California-Nevada River Forecast Center (CNRFC): the 8 stations comprising the Northern Sierra represent our CAP Region 2, the 5 stations of the San Joaquin Basin represent our CAP Region 4, and the 6 stations of the Tulare Basin represent our CAP Region 6.

Since publication of our previous report at the end of the wet season, the State has gained roughly 9 percentage points to end the water year at ~96% of normal. Dive into the Insights section (left sidebar menu) for a more in-depth look at the water year.

The dashboard below shows the state as a whole through September 30.

Statewide:
CAP Forecast WY 2024-25

Statewide:
Year-over-Year Comparison

Highlights

  1. The state gained 9 percentage points since April, bringing the WY total to 96% of average and within CAP’s forecasted range for the ninth consecutive year.
  2. At the close of the water year, analog years 2017-18 and 2018-19 have proven to be a good guide as precipitation accumulation for WY 2425 remains between the analog traces.

Prior Reports

November 7, 2024

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November 19, 2024

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December 23, 2024

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January 31, 2025

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March 3, 2025

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March 28, 2025

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May 7, 2025

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June 5, 2025

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November 3, 2025

View Report

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