Rockwall 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 |
|---|---|---|---|
| May 28, 2024 | 124 hrs | 31,961 (41%) | Thunderstorm Wind |
| Feb 15, 2021 | 86 hrs | 18,543 (24%) | Winter Storm Uri |
| Mar 17, 2021 | 14 hrs | 11,740 (15%) | Thunderstorm Wind |
| Apr 7, 2022 | 1 hrs | 7,998 (10%) | Drought |
| May 16, 2022 | 21 hrs | 7,470 (10%) | Unnamed event |
Over the 12 years from 2014 to 2025, Rockwall County recorded 594 distinct power outage events, averaging 2.5 hours per event.
The single worst outage on record in Rockwall County started May 28, 2024 (Thunderstorm Wind), lasting 124 hours and leaving up to 31,961 customers without power (41% of the county) at its peak.
May has historically been the worst month for outages in Rockwall County, with 75 events recorded during that month across the dataset.
Based on this history, Rockwall County earns a Reliability Grade of C, placing it in the 59th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Rockwall County's outage profile
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Similar counties in Texas
Counties with the closest reliability grade and national percentile to Rockwall County.
| County | Grade | National percentile |
|---|---|---|
| Oldham County | C | 59th |
| Potter County | C | 59th |
| Hartley County | C | 60th |
| Castro County | C | 58th |
| Bowie County | B | 60th |
FAQ
How often does power go out in Rockwall County?
Between 2014 and 2025, Rockwall County recorded 594 outage events, averaging 2.5 hours each.
What is Rockwall County's reliability grade?
Rockwall County has a Reliability Grade of C, in the 59th national percentile.
What was the worst power outage in Rockwall County?
The worst outage on record started May 28, 2024 (Thunderstorm Wind), lasting 124 hours and affecting up to 31,961 customers.