Asotin County Power Outage History
2015–2025 · Washington
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Sep 12, 2024 | 3 hrs | 7,043 (34%) | Unnamed event |
| Oct 12, 2024 | 1 hrs | 3,446 (17%) | Unnamed event |
| Dec 14, 2023 | 1 hrs | 3,274 (16%) | Unnamed event |
| Jun 19, 2018 | 0 hrs | 2,588 (12%) | Unnamed event |
| Apr 26, 2017 | 1 hrs | 2,308 (11%) | Unnamed event |
Over the 11 years from 2015 to 2025, Asotin County recorded 215 distinct power outage events, averaging 3.3 hours per event.
The single worst outage on record in Asotin County started September 12, 2024, lasting 3 hours and leaving up to 7,043 customers without power (34% of the county) at its peak.
September has historically been the worst month for outages in Asotin County, with 26 events recorded during that month across the dataset.
Based on this history, Asotin County earns a Reliability Grade of A, placing it in the 84th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Asotin County's outage profile
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Similar counties in Washington
Counties with the closest reliability grade and national percentile to Asotin County.
| County | Grade | National percentile |
|---|---|---|
| Chelan County | A | 83rd |
| Clark County | A | 85th |
| Douglas County | A | 82nd |
| Yakima County | B | 80th |
| Whitman County | B | 78th |
FAQ
How often does power go out in Asotin County?
Between 2015 and 2025, Asotin County recorded 215 outage events, averaging 3.3 hours each.
What is Asotin County's reliability grade?
Asotin County has a Reliability Grade of A, in the 84th national percentile.
What was the worst power outage in Asotin County?
The worst outage on record started September 12, 2024, lasting 3 hours and affecting up to 7,043 customers.