22 of 30 counties ran at least 1° warmer than usual in September 2026, and 0 ran at least 1° cooler.
Warmest against its own records: Aleutians East Borough (6th-warmest September of 102). Even the least warm, North Slope Borough, had its 47th-warmest.
Wettest September against its records: Fairbanks North Star Borough, 4.9 inches (2nd-wettest).
No county was 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, North Slope Borough the most at 1.3°.
This week's forecast against the usual, and every month since 1895, for all 30 counties in Alaska. 5 had a top-10 warm September in 2026.