Bexar County Power Outage History
2014–2025 · Texas
Better than average — fewer or shorter 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 15, 2021 | 87 hrs | 329,782 (32%) | Winter Storm Uri |
| Jun 6, 2019 | 1 hrs | 55,167 (5%) | Flash Flood |
| Jun 3, 2023 | 22 hrs | 48,221 (5%) | Hail |
| Apr 20, 2023 | 27 hrs | 39,388 (4%) | Drought |
| May 25, 2020 | 17 hrs | 36,974 (4%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Bexar County recorded 4,765 distinct power outage events, averaging 1.6 hours per event.
The single worst outage on record in Bexar County started February 15, 2021 (Winter Storm Uri), lasting 87 hours and leaving up to 329,782 customers without power (32% of the county) at its peak.
July has historically been the worst month for outages in Bexar County, with 492 events recorded during that month across the dataset.
Based on this history, Bexar County earns a Reliability Grade of B, placing it in the 66th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Bexar County's outage profile
See more picks in our Best Small Power Stations (Under 1,000Wh) roundup.
Outage-prep kit
See our outage-prep guides or the Texas storm prep checklist.
Similar counties in Texas
Counties with the closest reliability grade and national percentile to Bexar County.
| County | Grade | National percentile |
|---|---|---|
| Swisher County | B | 66th |
| Andrews County | B | 66th |
| DeWitt County | B | 67th |
| Crane County | B | 67th |
| Winkler County | B | 65th |
FAQ
How often does power go out in Bexar County?
Between 2014 and 2025, Bexar County recorded 4,765 outage events, averaging 1.6 hours each.
What is Bexar County's reliability grade?
Bexar County has a Reliability Grade of B, in the 66th national percentile.
What was the worst power outage in Bexar County?
The worst outage on record started February 15, 2021 (Winter Storm Uri), lasting 87 hours and affecting up to 329,782 customers.