Washington CountyPower Outage History
What this grade means
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jul 22, 2019 | 21 hrs | 8,253 (26%) | Excessive Heat |
| May 7, 2024 | 71 hrs | 6,619 (21%) | Tornado |
| May 24, 2025 | 32 hrs | 6,232 (20%) | Hail |
| Oct 9, 2017 | <1 hr | 6,142 (19%) | Unnamed event |
| Jun 18, 2025 | 40 hrs | 5,291 (17%) | Thunderstorm Wind |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Washington County, Oklahoma that day.
Over the 12 years from 2014 to 2025, Washington County recorded 690 distinct power outage events, averaging 2.0 hours per event.
The single worst outage on record in Washington County started July 22, 2019 (Excessive Heat), lasting 21 hours and leaving up to 8,253 customers without power (26% of the county) at its peak.
May has historically been the worst month for outages in Washington County, with 106 events recorded during that month across the dataset.
Based on this history, Washington County earns a Reliability Grade of B, placing it in the 67th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Oklahoma
Counties with the closest reliability grade and national percentile to Washington County.
| County | Grade | National percentile |
|---|---|---|
| Cimarron County | B | 66th |
| Beaver County | B | 67th |
| Cleveland County | B | 67th |
| Woodward County | B | 64th |
| Stephens County | B | 69th |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Washington County?
Between 2014 and 2025, Washington County recorded 690 outage events, averaging 2.0 hours each.
What is Washington County's reliability grade?
Washington County has a Reliability Grade of B, in the 67th national percentile.
What was the worst power outage in Washington County?
The worst outage on record started July 22, 2019 (Excessive Heat), lasting 21 hours and affecting up to 8,253 customers.