Power outage history
Stephens County Oklahoma
2.9hours
without power for the average customer in a typical year, 2018–2025
68th most of 75 in Oklahoma 56% below 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 Stephens's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2025 was the worst well-recorded year, at 6.1 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Stephens, 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 |
|---|---|---|---|---|---|---|
| Mar 14, 2025 | No storm report | 4,345 | 17% | 16 h | 9.8 h | 39k |
| Oct 27, 2020 | Ice storm | 3,307 | 13% | 36 h | 6.0 h | 35k |
| Apr 5, 2025 | Thunderstorms | 9,312 | 36% | 14 h | 3.5 h | 33k |
| May 23, 2016 | Thunderstorms | 10,986 | 43% | 17 h | 4.8 h | 32k |
| Feb 26, 2023 | Thunderstorms | 5,189 | 20% | 9.5 h | 6.2 h | 26k |
| Jun 19, 2019 | Thunderstorms | 6,038 | 24% | 13 h | 8.0 h | 23k |
| Nov 3, 2024 | Tornadoes | 3,245 | 13% | 16 h | 13 h | 23k |
| Jun 30, 2017 | Flooding | 4,400 | 17% | 7.8 h | 6.0 h | 17k |
| Jun 15, 2023 | Tornadoes | 3,643 | 14% | 12 h | 7.5 h | 16k |
| Jun 12, 2016 | Flooding | 1,689 | 7% | 9.8 h | 4.5 h | 12k |
| May 18, 2017 | Thunderstorms | 3,066 | 12% | 8.5 h | 6.8 h | 11k |
| May 19, 2017 | No storm report | 1,302 | 5% | 16 h | 17 h | 11k |
| Apr 30, 2025 | Flooding | 6,453 | 25% | 5.8 h | 3.2 h | 11k |
| Feb 8, 2025 | No storm report | 1,232 | 5% | 13 h | – | 10k |
| Jul 10, 2024 | No storm report | 5,149 | 20% | 2.2 h | 2.0 h | 8.3k |
| May 6, 2023 | No storm report | 3,107 | 12% | 6.0 h | 2.5 h | 7.3k |
| Dec 27, 2015 | No storm report | 1,530 | 6% | 7.2 h | 4.8 h | 7.2k |
| Apr 14, 2024 | No storm report | 4,204 | 16% | 2.5 h | 2.5 h | 7.1k |
| Apr 29, 2016 | Thunderstorms | 808 | 3% | 15 h | – | 5.8k |
| Mar 6, 2025 | No storm report | 554 | 2% | 10 h | – | 5.6k |
| Jul 12, 2020 | No storm report | 825 | 3% | 11 h | – | 5.6k |
| Jun 30, 2025 | No storm report | 1,435 | 6% | 4.5 h | 1.5 h | 5.2k |
| Apr 26, 2025 | Flooding | 1,064 | 4% | 4.8 h | – | 4.9k |
| May 21, 2015 | No storm report | 1,760 | 7% | 2.8 h | 6.0 h | 4.8k |
| Jun 16, 2023 | Thunderstorms | 970 | 4% | 12 h | – | 4.5k |
| Apr 10, 2016 | Thunderstorms | 1,801 | 7% | 5.5 h | 5.0 h | 4.4k |
| Apr 27, 2024 | Thunderstorms | 1,104 | 4% | 4.2 h | – | 4.0k |
| May 2, 2024 | No storm report | 2,462 | 10% | 2.5 h | 1.8 h | 3.8k |
| May 1, 2017 | No storm report | 1,360 | 5% | 3.2 h | 1.0 h | 3.7k |
| Feb 10, 2023 | No storm report | 702 | 3% | 5.2 h | – | 3.7k |
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 Stephens from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 49%
- Thunderstorms 26%
- Tornadoes 9.6%
- Ice storm 8.6%
- Flooding 4.2%
- Winter storm 1.9%
- Heat 0.6%
Who keeps the lights on
Utilities serving Stephens
As each utility reports to the Energy Information Administration for its whole Oklahoma territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Oklahoma Gas & Electric Co | Investor Owned | 237 | 145 | 1.71 | 12.5 | 716k |
| Public Service Co of Oklahoma | Investor Owned | 200 | 98 | 1.48 | 14.2 | 506k |
| City of Duncan | OK | 578 | – | 2.79 | 11.2 | 88k |
| City of Marlow | OK | 933 | – | 3.40 | – | 23k |
| Cotton Electric Coop, Inc | Cooperative | 549 | 238 | 4.05 | 12.7 | 20k |
| Rural Electric Coop, Inc | Cooperative | 698 | 212 | 4.49 | 11.9 | 9.2k |
| City of Comanche | OK | – | – | – | – | 7.4k |
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.
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 25,647 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 →