Morrow County Power Outage History
2017–2025 · Oregon
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 |
|---|---|---|---|
| May 30, 2020 | 81 hrs | 4,304 (39%) | Thunderstorm Wind |
| Jul 11, 2022 | 0 hrs | 1,990 (18%) | Unnamed event |
| Jun 11, 2020 | 1 hrs | 1,779 (16%) | Unnamed event |
| Jul 11, 2023 | 1 hrs | 1,764 (16%) | Unnamed event |
| Oct 4, 2025 | 5 hrs | 1,716 (16%) | Unnamed event |
Over the 9 years from 2017 to 2025, Morrow County recorded 179 distinct power outage events, averaging 3.4 hours per event.
The single worst outage on record in Morrow County started May 30, 2020 (Thunderstorm Wind), lasting 81 hours and leaving up to 4,304 customers without power (39% of the county) at its peak.
July has historically been the worst month for outages in Morrow County, with 26 events recorded during that month across the dataset.
Based on this history, Morrow County earns a Reliability Grade of A, placing it in the 81st percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Morrow County's outage profile
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Similar counties in Oregon
Counties with the closest reliability grade and national percentile to Morrow County.
| County | Grade | National percentile |
|---|---|---|
| Hood River County | A | 82nd |
| Malheur County | A | 83rd |
| Gilliam County | B | 77th |
| Deschutes County | A | 87th |
| Union County | B | 74th |
FAQ
How often does power go out in Morrow County?
Between 2017 and 2025, Morrow County recorded 179 outage events, averaging 3.4 hours each.
What is Morrow County's reliability grade?
Morrow County has a Reliability Grade of A, in the 81st national percentile.
What was the worst power outage in Morrow County?
The worst outage on record started May 30, 2020 (Thunderstorm Wind), lasting 81 hours and affecting up to 4,304 customers.