Coryell 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 | 15,160 (43%) | Winter Storm Uri |
| Mar 5, 2015 | 0 hrs | 9,390 (27%) | Unnamed event |
| May 25, 2015 | 4 hrs | 7,140 (20%) | Tornado |
| May 23, 2024 | 22 hrs | 6,717 (19%) | Thunderstorm Wind |
| May 22, 2024 | 3 hrs | 6,716 (19%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Coryell County recorded 324 distinct power outage events, averaging 3.3 hours per event.
The single worst outage on record in Coryell County started February 14, 2021 (Winter Storm Uri), lasting 96 hours and leaving up to 15,160 customers without power (43% of the county) at its peak.
May has historically been the worst month for outages in Coryell County, with 47 events recorded during that month across the dataset.
Based on this history, Coryell County earns a Reliability Grade of C, placing it in the 49th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Coryell County's outage profile
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Similar counties in Texas
Counties with the closest reliability grade and national percentile to Coryell County.
| County | Grade | National percentile |
|---|---|---|
| Bastrop County | C | 49th |
| Fort Bend County | C | 49th |
| Hardeman County | C | 50th |
| Fannin County | C | 50th |
| McLennan County | C | 51st |
FAQ
How often does power go out in Coryell County?
Between 2014 and 2025, Coryell County recorded 324 outage events, averaging 3.3 hours each.
What is Coryell County's reliability grade?
Coryell County has a Reliability Grade of C, in the 49th national percentile.
What was the worst power outage in Coryell County?
The worst outage on record started February 14, 2021 (Winter Storm Uri), lasting 96 hours and affecting up to 15,160 customers.