Colorado River Natural Flow Data by Water Year

Since 2000, the Colorado River has flowed below the historic 20th Century average.

Chart showing Colorado River flow data from 2000-2023.

(Please use a modern browser to see the interactive version of this visualization)

Note: 2021-2023 data is marked as provisional and subject to updates.

Chart: Daniel RothbergSource: U.S. Bureau of ReclamationCreated with Datawrapper