Glasscock CountyPower Outage History
2015–2025 · Texas
Worse than average — more frequent or longer outages than most counties.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Feb 14, 2021 | 107 hrs | 3,043 (69%) | Winter Storm Uri |
| Aug 21, 2023 | <1 hr | 1,138 (26%) | Unnamed event |
| May 24, 2022 | 3 hrs | 979 (22%) | Tornado |
| May 25, 2022 | 8 hrs | 979 (22%) | Tornado |
| Mar 2, 2023 | 13 hrs | 819 (19%) | Unnamed event |
Over the 11 years from 2015 to 2025, Glasscock County recorded 794 distinct power outage events, averaging 3.4 hours per event.
The single worst outage on record in Glasscock County started February 14, 2021 (Winter Storm Uri), lasting 107 hours and leaving up to 3,043 customers without power (69% of the county) at its peak.
June has historically been the worst month for outages in Glasscock County, with 104 events recorded during that month across the dataset.
Based on this history, Glasscock County earns a Reliability Grade of D, placing it in the 29th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Glasscock County's outage profile
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Similar counties in Texas
Counties with the closest reliability grade and national percentile to Glasscock County.
| County | Grade | National percentile |
|---|---|---|
| Chambers County | D | 29th |
| Red River County | D | 29th |
| Aransas County | D | 29th |
| Calhoun County | D | 28th |
| Henderson County | D | 28th |
Most reliable counties in Texas
The top 3 counties in Texas by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Zavala County | A | 95th |
| Jasper County | A | 94th |
| Fayette County | A | 91st |
Least reliable counties in Texas
The bottom 3 counties in Texas by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Trinity County | F | 2nd |
| Orange County | F | 2nd |
| Marion County | F | 4th |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Glasscock County?
Between 2015 and 2025, Glasscock County recorded 794 outage events, averaging 3.4 hours each.
What is Glasscock County's reliability grade?
Glasscock County has a Reliability Grade of D, in the 29th national percentile.
What was the worst power outage in Glasscock County?
The worst outage on record started February 14, 2021 (Winter Storm Uri), lasting 107 hours and affecting up to 3,043 customers.