Chambers 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 |
|---|---|---|---|
| Jun 22, 2023 | 87 hrs | 10,646 (39%) | Excessive Heat |
| May 22, 2018 | 2 hrs | 7,497 (27%) | Unnamed event |
| Jul 29, 2018 | 4 hrs | 6,814 (25%) | Unnamed event |
| Aug 29, 2017 | 74 hrs | 5,986 (22%) | Tropical Storm |
| May 10, 2019 | 49 hrs | 5,711 (21%) | Unnamed event |
Over the 12 years from 2014 to 2025, Chambers County recorded 1,933 distinct power outage events, averaging 2.2 hours per event.
The single worst outage on record in Chambers County started June 22, 2023 (Excessive Heat), lasting 87 hours and leaving up to 10,646 customers without power (39% of the county) at its peak.
January has historically been the worst month for outages in Chambers County, with 218 events recorded during that month across the dataset.
Based on this history, Chambers County earns a Reliability Grade of D, placing it in the 29th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Chambers County's outage profile
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Similar counties in Texas
Counties with the closest reliability grade and national percentile to Chambers County.
| County | Grade | National percentile |
|---|---|---|
| Glasscock County | D | 29th |
| Aransas County | D | 29th |
| Red River County | D | 29th |
| Calhoun County | D | 28th |
| Henderson County | D | 28th |
FAQ
How often does power go out in Chambers County?
Between 2014 and 2025, Chambers County recorded 1,933 outage events, averaging 2.2 hours each.
What is Chambers County's reliability grade?
Chambers County has a Reliability Grade of D, in the 29th national percentile.
What was the worst power outage in Chambers County?
The worst outage on record started June 22, 2023 (Excessive Heat), lasting 87 hours and affecting up to 10,646 customers.