– 0 customers out in the US

December 2025 · 56th largest of 72

Windstorm

Dec 17, 2025. At the peak, 713,121 customers were without power, most of them in Washington, Oregon, Montana.

Windstorm
Customers out at the peak 713,121 Dec 17, 2025, 9:00 AM
Customer-hours lost 16M Every customer out, times every hour out
Counties with 10%+ out 94 of 161 counties affected
Above 600,000 out nationally 7.0 hours Dec 17, 2025, 6:00 AM onward
States affected 30 WA · OR · MT · ID · CO
Hardest-hit county 100%out Clatsop, OR · 23,302 customers

Hour by hour

The country, in the dark

Customers without power across the US, two days either side. The shaded band is the time the national total stayed above 600,000.

0 200k 400k 600k 800k Dec 15Dec 16Dec 17Dec 18Dec 19Dec 20 Peak 713k

By state

Where it hit

StatePeak outShareCounties 10%+
Washington 462,161 13% 18
Oregon 243,065 15% 11
Montana 122,867 24% 25
Idaho 95,398 31% 17
Colorado 86,841 10% 2
California 23,418 4% 1
Wyoming 9,952 17% 4
South Carolina 9,878 6% 1
Florida 8,928 3% 0
Missouri 5,917 3% 2
Ohio 3,640 3% 0
New Jersey 3,254 2% 0
Louisiana 2,938 17% 1
Indiana 2,749 4% 1
North Carolina 2,496 9% 1
Nevada 2,303 8% 0
Hawaii 2,157 6% 0
Kentucky 1,991 10% 1
South Dakota 1,896 3% 1
Georgia 1,646 13% 2

State peaks add each county's own peak, which may fall at different hours, so they can exceed the true simultaneous total.

By county

The hardest hit