Tulsa County Power Outage History
2014–2025 · Oklahoma
Worse than average — more frequent or longer 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 |
|---|---|---|---|
| Jun 18, 2023 | 110 hrs | 171,636 (44%) | Thunderstorm Wind |
| Jul 14, 2016 | 45 hrs | 74,402 (19%) | Hail |
| Dec 20, 2017 | 3 hrs | 56,560 (15%) | Unnamed event |
| Jun 22, 2023 | 100 hrs | 56,350 (14%) | Thunderstorm Wind |
| Nov 3, 2024 | 18 hrs | 37,199 (10%) | Drought |
Over the 12 years from 2014 to 2025, Tulsa County recorded 2,569 distinct power outage events, averaging 2.3 hours per event.
The single worst outage on record in Tulsa County started June 18, 2023 (Thunderstorm Wind), lasting 110 hours and leaving up to 171,636 customers without power (44% of the county) at its peak.
May has historically been the worst month for outages in Tulsa County, with 287 events recorded during that month across the dataset.
Based on this history, Tulsa County earns a Reliability Grade of D, placing it in the 35th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Oklahoma
Counties with the closest reliability grade and national percentile to Tulsa County.
| County | Grade | National percentile |
|---|---|---|
| Pittsburg County | D | 35th |
| Creek County | D | 35th |
| Pottawatomie County | D | 37th |
| Le Flore County | D | 37th |
| Delaware County | D | 33rd |
FAQ
How often does power go out in Tulsa County?
Between 2014 and 2025, Tulsa County recorded 2,569 outage events, averaging 2.3 hours each.
What is Tulsa County's reliability grade?
Tulsa County has a Reliability Grade of D, in the 35th national percentile.
What was the worst power outage in Tulsa County?
The worst outage on record started June 18, 2023 (Thunderstorm Wind), lasting 110 hours and affecting up to 171,636 customers.