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Average Temperatures in the Southwestern United States, 2000–2023 Versus Long-Term Average

Published by USEPA | U.S. Environmental Protection Agency | Metadata Last Checked: January 27, 2026 | Last Modified: 2019-11-18T00:00:00.000+00:00
This indicator shows how the average air temperature from 2000 to 2023 has differed from the long-term average (1895 - 2023). To provide more detailed information, each state has been divided into climate divisions, which are zones that share similar climate features. For more information: https://www.epa.gov/climate-indicators.

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