Oregon Power Outage Season
When outages happen most in Oregon, and what to expect.
August is historically Oregon's busiest month for recorded power outages, part of a summer season (June–August) that accounts for about 31% of all recorded outages statewide, averaging 3.7 hours per event. 3 of Oregon's 34 tracked counties currently carry a Reliability Grade of F.
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Oregon outages by month
Total recorded events and average duration per event, summed across every tracked county in Oregon.
Peak season insight
Oregon's outage season runs June–August, accounting for 31% of all recorded outages. August has the highest frequency.
Month-by-month data table
| Month | Events | Avg duration |
|---|---|---|
| January | 1,506 | 4.2 hrs |
| February | 1,271 | 5.2 hrs |
| March | 1,121 | 3.1 hrs |
| April | 1,008 | 3.0 hrs |
| May | 1,105 | 4.0 hrs |
| June | 1,535 | 3.0 hrs |
| July | 2,003 | 3.0 hrs |
| August | 2,138 | 3.1 hrs |
| September | 1,749 | 4.4 hrs |
| October | 1,528 | 3.1 hrs |
| November | 1,622 | 3.1 hrs |
| December | 1,769 | 4.6 hrs |
This month in Oregon
October has historically recorded 1,528 outage events across Oregon, below the state's typical monthly average. Outages that start in October have averaged 3.1 hours.
Main causes by season
Named storms behind Oregon's worst recorded outages, from the NOAA Storm Events Database.
Winter (December–February)
- Heavy Snow
- Blizzard
- High Wind
- Frost/Freeze
- Winter Storm
Spring (March–May)
- Thunderstorm Wind
- Flood
Summer (June–August)
- Excessive Heat
- Wildfire
- Thunderstorm Wind
- Hail
Fall (September–November)
- Wildfire
- Winter Storm
Oregon's worst outage events on record
The five largest outages in Oregon by duration and customers affected.
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jan 13, 2024 | 173 hrs | 123,419 (30%) | Blizzard |
| Feb 12, 2021 | 148 hrs | 117,645 (86%) | Unnamed event |
| Feb 13, 2021 | 134 hrs | 125,115 (30%) | Blizzard |
| Feb 12, 2021 | 144 hrs | 104,608 (56%) | Unnamed event |
| Sep 8, 2020 | 563 hrs | 14,159 (8%) | Unnamed event |
Highest-risk counties in Oregon
Lowest reliability percentile among Oregon's tracked counties.
| County | Grade | National percentile |
|---|---|---|
| Clackamas County | F | 8th |
| Marion County | F | 12th |
| Lincoln County | F | 19th |
| Tillamook County | D | 20th |
| Clatsop County | D | 25th |
Live weather alerts for Oregon
There are no active National Weather Service alerts for Oregon right now.
These live alerts come from the National Weather Service. They are public-safety information, not an outage prediction.
Oregon power outage FAQ
When do power outages happen most in Oregon?
August is historically the busiest single month for recorded outages in Oregon, and Summer (June–August) accounts for about 31% of all recorded outages across the state.
How long do power outages in Oregon typically last?
Across Oregon's tracked counties, the average recorded outage lasts about 3.7 hours, though individual events -- especially named storms -- can run much longer.
Which counties in Oregon have the highest outage risk?
Clackamas County, Marion County, Lincoln County, Tillamook County, Clatsop County currently rank lowest for reliability in Oregon. See each county's page for its full history.
Does this page predict a power outage in Oregon?
No. It describes patterns in recorded county-level outage history, not a guaranteed future event. Check the live National Weather Service alerts below for current conditions.
Prepare for Oregon's outage season
Sized for Oregon's recorded outage frequency and duration.
