Calhoun County Power Outage History
2014–2025 · 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 |
|---|---|---|---|
| May 13, 2024 | 5 hrs | 7,088 (58%) | Tornado |
| Feb 15, 2021 | 87 hrs | 6,838 (56%) | Winter Storm Uri |
| May 31, 2024 | 4 hrs | 6,592 (54%) | Heat |
| Jul 29, 2020 | 3 hrs | 6,271 (52%) | Hurricane Hanna |
| Jul 8, 2024 | 13 hrs | 5,865 (48%) | Tropical Storm |
Over the 12 years from 2014 to 2025, Calhoun County recorded 374 distinct power outage events, averaging 2.8 hours per event.
The single worst outage on record in Calhoun County started May 13, 2024 (Tornado), lasting 5 hours and leaving up to 7,088 customers without power (58% of the county) at its peak.
May has historically been the worst month for outages in Calhoun County, with 45 events recorded during that month across the dataset.
Based on this history, Calhoun County earns a Reliability Grade of D, placing it in the 28th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Calhoun County's outage profile
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Similar counties in Texas
Counties with the closest reliability grade and national percentile to Calhoun County.
| County | Grade | National percentile |
|---|---|---|
| Henderson County | D | 28th |
| Schleicher County | D | 28th |
| Aransas County | D | 29th |
| Wheeler County | D | 28th |
| Chambers County | D | 29th |
FAQ
How often does power go out in Calhoun County?
Between 2014 and 2025, Calhoun County recorded 374 outage events, averaging 2.8 hours each.
What is Calhoun County's reliability grade?
Calhoun County has a Reliability Grade of D, in the 28th national percentile.
What was the worst power outage in Calhoun County?
The worst outage on record started May 13, 2024 (Tornado), lasting 5 hours and affecting up to 7,088 customers.