Harrison 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 |
|---|---|---|---|
| Jun 16, 2023 | 205 hrs | 28,811 (57%) | Thunderstorm Wind |
| Mar 4, 2025 | 34 hrs | 12,182 (24%) | Tornado |
| Jun 19, 2019 | 56 hrs | 12,094 (24%) | Thunderstorm Wind |
| May 28, 2017 | 95 hrs | 11,387 (23%) | Thunderstorm Wind |
| Apr 9, 2024 | 63 hrs | 10,856 (22%) | Flash Flood |
Over the 12 years from 2014 to 2025, Harrison County recorded 981 distinct power outage events, averaging 3.2 hours per event.
The single worst outage on record in Harrison County started June 16, 2023 (Thunderstorm Wind), lasting 205 hours and leaving up to 28,811 customers without power (57% of the county) at its peak.
May has historically been the worst month for outages in Harrison County, with 128 events recorded during that month across the dataset.
Based on this history, Harrison County earns a Reliability Grade of F, placing it in the 13th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Harrison County's outage profile
See more picks in our Best Dual-Fuel Portable Generators for Power Outages roundup.
Champion Power Equipment 4375-Watt Dual Fuel RV Ready Portable Generator with Free 3-Year Warranty
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 Harrison County.
| County | Grade | National percentile |
|---|---|---|
| Hardin County | F | 12th |
| Falls County | F | 12th |
| Liberty County | F | 12th |
| Galveston County | F | 13th |
| Camp County | F | 12th |
FAQ
How often does power go out in Harrison County?
Between 2014 and 2025, Harrison County recorded 981 outage events, averaging 3.2 hours each.
What is Harrison County's reliability grade?
Harrison County has a Reliability Grade of F, in the 13th national percentile.
What was the worst power outage in Harrison County?
The worst outage on record started June 16, 2023 (Thunderstorm Wind), lasting 205 hours and affecting up to 28,811 customers.