Tarrant County Power Outage History
2014–2025 · Texas
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Feb 14, 2021 | 96 hrs | 367,316 (31%) | Winter Storm Uri |
| Mar 2, 2023 | 59 hrs | 107,175 (9%) | Hail |
| Sep 9, 2023 | 50 hrs | 101,641 (8%) | Drought |
| Jun 16, 2019 | 51 hrs | 73,079 (6%) | Thunderstorm Wind |
| Apr 19, 2015 | 51 hrs | 67,373 (6%) | Drought |
Over the 12 years from 2014 to 2025, Tarrant County recorded 7,936 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Tarrant County started February 14, 2021 (Winter Storm Uri), lasting 96 hours and leaving up to 367,316 customers without power (31% of the county) at its peak.
July has historically been the worst month for outages in Tarrant County, with 810 events recorded during that month across the dataset.
Based on this history, Tarrant County earns a Reliability Grade of C, placing it in the 54th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Tarrant County's outage profile
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Similar counties in Texas
Counties with the closest reliability grade and national percentile to Tarrant County.
| County | Grade | National percentile |
|---|---|---|
| Crosby County | C | 54th |
| Grayson County | C | 54th |
| Kent County | C | 53rd |
| Williamson County | C | 53rd |
| Shackelford County | C | 53rd |
FAQ
How often does power go out in Tarrant County?
Between 2014 and 2025, Tarrant County recorded 7,936 outage events, averaging 2.4 hours each.
What is Tarrant County's reliability grade?
Tarrant County has a Reliability Grade of C, in the 54th national percentile.
What was the worst power outage in Tarrant County?
The worst outage on record started February 14, 2021 (Winter Storm Uri), lasting 96 hours and affecting up to 367,316 customers.