Washington County Power Outage History
2014–2025 · Oregon
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 7, 2017 | 74 hrs | 69,448 (26%) | Unnamed event |
| Dec 27, 2022 | 91 hrs | 40,396 (15%) | Unnamed event |
| Dec 11, 2014 | 44 hrs | 40,174 (15%) | Unnamed event |
| Jan 13, 2024 | 164 hrs | 36,672 (13%) | Unnamed event |
| Feb 13, 2021 | 133 hrs | 29,747 (11%) | Unnamed event |
Over the 12 years from 2014 to 2025, Washington County recorded 1,517 distinct power outage events, averaging 4.2 hours per event.
The single worst outage on record in Washington County started April 7, 2017, lasting 74 hours and leaving up to 69,448 customers without power (26% of the county) at its peak.
August has historically been the worst month for outages in Washington County, with 170 events recorded during that month across the dataset.
Based on this history, Washington County earns a Reliability Grade of C, placing it in the 53rd percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Oregon
Counties with the closest reliability grade and national percentile to Washington County.
| County | Grade | National percentile |
|---|---|---|
| Jefferson County | C | 53rd |
| Jackson County | C | 52nd |
| Lane County | C | 53rd |
| Coos County | C | 55th |
| Sherman County | C | 56th |
FAQ
How often does power go out in Washington County?
Between 2014 and 2025, Washington County recorded 1,517 outage events, averaging 4.2 hours each.
What is Washington County's reliability grade?
Washington County has a Reliability Grade of C, in the 53rd national percentile.
What was the worst power outage in Washington County?
The worst outage on record started April 7, 2017, lasting 74 hours and affecting up to 69,448 customers.