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Quarterly Climate Impacts and Outlook for the Western Region - December 2021

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Quarterly Climate Impacts and Outlook for the Western Region for September - November 2021.  Dated December 2021.

A strong ridge of high pressure favored widespread above to much above normal temperatures in the West. Below normal temperatures occurred in western and northwestern Washington. Multiple extreme to exceptional landfalling atmospheric rivers in October brought above average to record precipitation to the Pacific Northwest, northern California and Nevada, and southern Idaho. Below average to record low precipitation occurred in the Pacific Southwest, Colorado, and Montana. 

NOAA’s Regional Climate Services Program created these Climate Outlooks to inform the public about recent climate impacts within their respective regions. Each regional report contains easy-to-understand language, and anyone can access them through the Drought Portal.

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Western Climate Region