Chart du jour: Hotter fall temperatures

Autumn is getting warmer across the continental U.S., and especially in the West, a new analysis found.

The big picture: Phoenix's fall temperatures rose 5.4° on average between 1970 and 2023, according to a new Climate Central report</a>.

• The nonprofit climate research group's analysis is based on average temperatures between September and November each year.

The intrigue: Fall temperatures rose 2.5° on average during the same time across 234 U.S. locations analyzed by the group.

Between the lines: The fall trends are consistent with climate science findings showing how the planet is responding to human-caused increases in greenhouse gases, such as carbon dioxide.

• All other seasons are also warming.

What's next: Expect above-normal temperatures across much of the country this fall, per NOAA's seasonal outlook</a>.