Harrison County Power Outage History
2014–2025 · Ohio
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 |
|---|---|---|---|
| Apr 29, 2025 | 69 hrs | 7,128 (74%) | Thunderstorm Wind |
| Feb 3, 2022 | 77 hrs | 3,513 (37%) | Ice Storm |
| Sep 11, 2020 | 0 hrs | 3,421 (36%) | Unnamed event |
| Sep 11, 2020 | 0 hrs | 3,421 (36%) | Unnamed event |
| Sep 11, 2020 | 0 hrs | 3,421 (36%) | Unnamed event |
Over the 12 years from 2014 to 2025, Harrison County recorded 899 distinct power outage events, averaging 4.4 hours per event.
The single worst outage on record in Harrison County started April 29, 2025 (Thunderstorm Wind), lasting 69 hours and leaving up to 7,128 customers without power (74% of the county) at its peak.
July has historically been the worst month for outages in Harrison County, with 110 events recorded during that month across the dataset.
Based on this history, Harrison County earns a Reliability Grade of F, placing it in the 9th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Ohio
Counties with the closest reliability grade and national percentile to Harrison County.
| County | Grade | National percentile |
|---|---|---|
| Pike County | F | 9th |
| Vinton County | F | 8th |
| Morgan County | F | 10th |
| Meigs County | F | 12th |
| Hocking County | F | 5th |
FAQ
How often does power go out in Harrison County?
Between 2014 and 2025, Harrison County recorded 899 outage events, averaging 4.4 hours each.
What is Harrison County's reliability grade?
Harrison County has a Reliability Grade of F, in the 9th national percentile.
What was the worst power outage in Harrison County?
The worst outage on record started April 29, 2025 (Thunderstorm Wind), lasting 69 hours and affecting up to 7,128 customers.