Collin 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 | 143,803 (29%) | Winter Storm Uri |
| May 28, 2024 | 120 hrs | 94,090 (19%) | Hail |
| Mar 4, 2025 | 57 hrs | 89,766 (18%) | Thunderstorm Wind |
| Mar 3, 2023 | 32 hrs | 55,216 (11%) | Thunderstorm Wind |
| Sep 6, 2025 | 20 hrs | 36,503 (7%) | Tropical Storm Lorena |
Over the 12 years from 2014 to 2025, Collin County recorded 2,971 distinct power outage events, averaging 2.3 hours per event.
The single worst outage on record in Collin County started February 14, 2021 (Winter Storm Uri), lasting 96 hours and leaving up to 143,803 customers without power (29% of the county) at its peak.
June has historically been the worst month for outages in Collin County, with 318 events recorded during that month across the dataset.
Based on this history, Collin County earns a Reliability Grade of C, placing it in the 57th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Collin County's outage profile
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Similar counties in Texas
Counties with the closest reliability grade and national percentile to Collin County.
| County | Grade | National percentile |
|---|---|---|
| Denton County | C | 57th |
| Young County | C | 58th |
| Parmer County | C | 58th |
| Webb County | C | 57th |
| Runnels County | C | 57th |
FAQ
How often does power go out in Collin County?
Between 2014 and 2025, Collin County recorded 2,971 outage events, averaging 2.3 hours each.
What is Collin County's reliability grade?
Collin County has a Reliability Grade of C, in the 57th national percentile.
What was the worst power outage in Collin County?
The worst outage on record started February 14, 2021 (Winter Storm Uri), lasting 96 hours and affecting up to 143,803 customers.