Montgomery County Power Outage History
2014–2025 · Texas
Bottom 20% least reliable nationally — frequent and/or long outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jul 8, 2024 | 255 hrs | 246,212 (70%) | Unnamed event |
| Feb 15, 2021 | 84 hrs | 135,412 (39%) | Winter Storm Uri |
| Aug 27, 2020 | 25 hrs | 115,841 (33%) | Unnamed event |
| May 28, 2024 | 107 hrs | 67,271 (19%) | Thunderstorm Wind |
| Jun 22, 2023 | 94 hrs | 64,824 (18%) | Excessive Heat |
Over the 12 years from 2014 to 2025, Montgomery County recorded 5,602 distinct power outage events, averaging 2.5 hours per event.
The single worst outage on record in Montgomery County started July 8, 2024, lasting 255 hours and leaving up to 246,212 customers without power (70% of the county) at its peak.
May has historically been the worst month for outages in Montgomery County, with 565 events recorded during that month across the dataset.
Based on this history, Montgomery County earns a Reliability Grade of F, placing it in the 11th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Texas
Counties with the closest reliability grade and national percentile to Montgomery County.
| County | Grade | National percentile |
|---|---|---|
| Walker County | F | 12th |
| Freestone County | F | 12th |
| Harris County | F | 12th |
| Cass County | F | 11th |
| Rusk County | F | 11th |
FAQ
How often does power go out in Montgomery County?
Between 2014 and 2025, Montgomery County recorded 5,602 outage events, averaging 2.5 hours each.
What is Montgomery County's reliability grade?
Montgomery County has a Reliability Grade of F, in the 11th national percentile.
What was the worst power outage in Montgomery County?
The worst outage on record started July 8, 2024, lasting 255 hours and affecting up to 246,212 customers.