Stephens County Power Outage History
2014–2025 · Oklahoma
Better than average — fewer or shorter 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 |
|---|---|---|---|
| May 23, 2016 | 17 hrs | 10,986 (43%) | Thunderstorm Wind |
| Apr 5, 2025 | 14 hrs | 9,312 (36%) | Hail |
| Sep 26, 2017 | 1 hrs | 7,519 (29%) | Unnamed event |
| Apr 30, 2025 | 7 hrs | 6,453 (25%) | Flash Flood |
| Jun 19, 2019 | 13 hrs | 6,038 (24%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Stephens County recorded 525 distinct power outage events, averaging 2.0 hours per event.
The single worst outage on record in Stephens County started May 23, 2016 (Thunderstorm Wind), lasting 17 hours and leaving up to 10,986 customers without power (43% of the county) at its peak.
May has historically been the worst month for outages in Stephens County, with 73 events recorded during that month across the dataset.
Based on this history, Stephens County earns a Reliability Grade of B, placing it in the 69th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Stephens County's outage profile
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Similar counties in Oklahoma
Counties with the closest reliability grade and national percentile to Stephens County.
| County | Grade | National percentile |
|---|---|---|
| Cleveland County | B | 67th |
| Beaver County | B | 67th |
| Sequoyah County | B | 71st |
| Washington County | B | 67th |
| Cimarron County | B | 66th |
FAQ
How often does power go out in Stephens County?
Between 2014 and 2025, Stephens County recorded 525 outage events, averaging 2.0 hours each.
What is Stephens County's reliability grade?
Stephens County has a Reliability Grade of B, in the 69th national percentile.
What was the worst power outage in Stephens County?
The worst outage on record started May 23, 2016 (Thunderstorm Wind), lasting 17 hours and affecting up to 10,986 customers.