PUBLICATION: Water Year 2021: An Extreme Year

From the Department of Water Resources:

Water Year 2021 (October 1, 2020 to September 30, 2021) was an extreme year in terms of temperature and precipitation, and it followed a Water Year 2020 that was likewise warm and dry. Water Year 2020 was California’s fifth driest year based on statewide runoff; Water Year 2021 has ended up as second driest. The Colorado River Basin, an important supply for Southern California, continued dry in Water Year 2021, with storage in Lakes Mead and Powell reaching new record lows. State emergency proclamations for drought were issued in April (Sonoma and Mendocino counties), May (Klamath River, Sacramento-San Joaquin Delta, and Tulare Lake watershed counties), and July (selected coastal and eastern Sierra counties), resulting in 50 counties being covered under the emergency proclamations.

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