Llano County Power Outage History
2017–2025 · Texas
Worse than average — more frequent or longer outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Feb 14, 2021 | 93 hrs | 16,499 (80%) | Winter Storm Uri |
| Apr 13, 2023 | 1 hrs | 10,462 (51%) | Drought |
| Aug 20, 2022 | 2 hrs | 10,318 (50%) | Drought |
| Oct 5, 2022 | 1 hrs | 7,129 (35%) | Drought |
| Feb 18, 2021 | 30 hrs | 6,999 (34%) | Winter Storm Uri |
Over the 9 years from 2017 to 2025, Llano County recorded 471 distinct power outage events, averaging 2.1 hours per event.
The single worst outage on record in Llano County started February 14, 2021 (Winter Storm Uri), lasting 93 hours and leaving up to 16,499 customers without power (80% of the county) at its peak.
May has historically been the worst month for outages in Llano County, with 61 events recorded during that month across the dataset.
Based on this history, Llano County earns a Reliability Grade of D, placing it in the 39th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Llano County's outage profile
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Similar counties in Texas
Counties with the closest reliability grade and national percentile to Llano County.
| County | Grade | National percentile |
|---|---|---|
| Delta County | D | 39th |
| Lee County | D | 39th |
| Deaf Smith County | D | 39th |
| Frio County | D | 39th |
| Bell County | D | 39th |
FAQ
How often does power go out in Llano County?
Between 2017 and 2025, Llano County recorded 471 outage events, averaging 2.1 hours each.
What is Llano County's reliability grade?
Llano County has a Reliability Grade of D, in the 39th national percentile.
What was the worst power outage in Llano County?
The worst outage on record started February 14, 2021 (Winter Storm Uri), lasting 93 hours and affecting up to 16,499 customers.