Power outage history
Multnomah County Oregon
8.3hours
without power for the average customer in a typical year, 2018–2025
8th most of 32 in Oregon 1.3× the national median
Every day since 2015
Eleven years, one night at a time
Each cell is a day. The brighter it is, the larger the share of Multnomah's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2024 was the worst well-recorded year, at 22 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Multnomah, hours without power per customer
The record
The biggest outages since 2015
Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.
| Began | Storm | Peak out | Share | Lasted | 90% restored | Customer-hours |
|---|---|---|---|---|---|---|
| Jan 13, 2024 | Winter storm | 123,419 | 32% | 7.7 d | 3.9 d | 7.4M |
| Feb 12, 2021 | Winter storm | 125,115 | 32% | 7.9 d | 3.7 d | 6.2M |
| Sep 7, 2020 | No storm report | 53,768 | 14% | 45 h | 37 h | 814k |
| Apr 11, 2022 | No storm report | 67,481 | 17% | 37 h | 25 h | 681k |
| Dec 27, 2022 | Windstorm | 31,521 | 8% | 37 h | 32 h | 561k |
| Dec 9, 2016 | Ice storm | 28,599 | 7% | 33 h | 28 h | 446k |
| Jan 12, 2021 | Flooding | 40,015 | 10% | 20 h | 17 h | 310k |
| Dec 17, 2025 | No storm report | 17,652 | 5% | 16 h | 10 h | 191k |
| Apr 7, 2017 | Windstorm | 17,619 | 5% | 17 h | 24 h | 179k |
| Sep 1, 2025 | No storm report | 16,168 | 4% | 16 h | 14 h | 172k |
| Jan 10, 2017 | Winter storm | 12,432 | 3% | 25 h | 28 h | 158k |
| Mar 15, 2015 | Thunderstorms | 20,515 | 5% | 13 h | 13 h | 157k |
| Aug 29, 2015 | No storm report | 18,797 | 5% | 9.2 h | 13 h | 116k |
| Feb 24, 2025 | Windstorm | 18,495 | 5% | 9.2 h | 13 h | 99k |
| Nov 7, 2022 | No storm report | 11,499 | 3% | 12 h | 11 h | 88k |
| Oct 15, 2016 | Thunderstorms | 21,015 | 5% | 9.0 h | 8.8 h | 86k |
| Dec 22, 2022 | Winter storm | 18,191 | 5% | 11 h | 18 h | 83k |
| Sep 18, 2021 | No storm report | 8,812 | 2% | 10 h | 16 h | 80k |
| Nov 4, 2022 | Windstorm | 22,621 | 6% | 5.0 h | 6.0 h | 78k |
| Dec 9, 2015 | Thunderstorms | 16,409 | 4% | 6.8 h | 5.0 h | 70k |
| Dec 22, 2022 | Windstorm | 9,311 | 2% | 7.0 h | 16 h | 55k |
| Nov 17, 2015 | Windstorm | 7,724 | 2% | 9.2 h | 13 h | 53k |
| Aug 27, 2017 | No storm report | 5,372 | 1% | 9.5 h | 4.8 h | 51k |
| Nov 30, 2022 | No storm report | 9,385 | 2% | 8.2 h | 6.0 h | 49k |
| Jun 28, 2021 | Heat | 11,747 | 3% | 5.2 h | 11 h | 44k |
| Jan 3, 2016 | Winter storm | 10,184 | 3% | 7.5 h | 4.5 h | 44k |
| Dec 1, 2015 | Ice storm | 8,447 | 2% | 7.2 h | 6.2 h | 43k |
| Feb 23, 2023 | Winter storm | 5,563 | 1% | 12 h | 9.2 h | 42k |
| Dec 11, 2021 | No storm report | 12,754 | 3% | 7.2 h | 10 h | 40k |
| Mar 16, 2019 | No storm report | 8,015 | 2% | 5.5 h | 4.8 h | 37k |
After the peak
How fast the lights come back
Each line is one major outage, from its peak. The amber line is the typical path.
When it happens
The outage clock
Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.
What was happening
Weather behind the outages
Each outage is matched to NOAA storm reports for Multnomah from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Winter storm 75%
- No storm on record 18%
- Windstorm 4.5%
- Flooding 1.7%
Who keeps the lights on
Utilities serving Multnomah
As each utility reports to the Energy Information Administration for its whole Oregon territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Portland General Electric Co | Investor Owned | 273 | 103 | 0.89 | 18.8 | 840k |
| PacifiCorp | Investor Owned | 385 | 104 | 1.52 | 15.2 | 553k |
| Columbia River Peoples Ut Dist | Political Subdivision | 170 | 37 | 0.58 | 9.8 | 16k |
| City of Cascade Locks | OR | – | – | – | – | 9.9k |
| Bonneville Power Administration | Federal | – | – | – | – | – |
EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.
Next door
Neighbouring counties
- Clackamas 18 h
- Multnomah (this county) 8.3 h
- Washington 4.0 h
- Hood River 3.4 h
- Clark, WA 2.0 h
- Skamania, WA 0.5 h
About these numbers
Notes
Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 388,772 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →