Yamhill County Power Outage History
2014–2025 · Oregon
Worse than average — more frequent or longer outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 7, 2017 | 55 hrs | 11,962 (25%) | Unnamed event |
| Feb 13, 2021 | 133 hrs | 9,175 (19%) | Unnamed event |
| Sep 8, 2020 | 43 hrs | 8,946 (19%) | Unnamed event |
| Dec 27, 2022 | 63 hrs | 8,081 (17%) | Unnamed event |
| Dec 17, 2025 | 31 hrs | 7,017 (15%) | Unnamed event |
Over the 12 years from 2014 to 2025, Yamhill County recorded 406 distinct power outage events, averaging 5.5 hours per event.
The single worst outage on record in Yamhill County started April 7, 2017, lasting 55 hours and leaving up to 11,962 customers without power (25% of the county) at its peak.
December has historically been the worst month for outages in Yamhill County, with 48 events recorded during that month across the dataset.
Based on this history, Yamhill County earns a Reliability Grade of D, placing it in the 32nd 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 Yamhill County.
| County | Grade | National percentile |
|---|---|---|
| Douglas County | D | 35th |
| Multnomah County | D | 29th |
| Polk County | D | 37th |
| Josephine County | D | 38th |
| Wallowa County | D | 26th |
FAQ
How often does power go out in Yamhill County?
Between 2014 and 2025, Yamhill County recorded 406 outage events, averaging 5.5 hours each.
What is Yamhill County's reliability grade?
Yamhill County has a Reliability Grade of D, in the 32nd national percentile.
What was the worst power outage in Yamhill County?
The worst outage on record started April 7, 2017, lasting 55 hours and affecting up to 11,962 customers.