Arizona weather by county

15 counties · records since 1895, through September 2026.

Weather › Arizona

Arizona in September 2026

10 of 15 counties ran at least 1° warmer than usual in September 2026, and 0 ran at least 1° cooler.
Warmest against its own records: Apache County (6th-warmest September of 132). Even the least warm, Santa Cruz County, had its 39th-warmest.
Wettest September against its records: Apache County, 3.8 inches (1st-wettest).
13 of 15 counties were in moderate drought or worse on NOAA's Palmer reading for September.
Since 1970 the state's counties have warmed about 0.6° per decade on average, Gila County the most at 0.7°.

This week's forecast against the usual, and every month since 1895, for all 15 counties in Arizona. 4 had a top-10 warm September in 2026.