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#1 Federal
Average Change in Drought (Five-Year SPEI) in the Contiguous 48 States, 1900–2020
- Organization: U.S. Environmental Protection Agency
- Updated: 2021-06-17T00:00:00.000+00:00
This map shows how drought conditions have changed across the contiguous 48 states from 1900 to 2020. The data are showed for small regions called climate divisions, as defined by the National...

Search relevance: 1.00 | Views last month: 0 | Published on: 2026-01-27

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Average Change in Drought (Five-Year SPEI) in the Contiguous 48 States, 1900–2020