Harrison County Power Outage History
2014–2025 · Indiana
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 5, 2023 | 16 hrs | 7,689 (52%) | Thunderstorm Wind |
| Jul 29, 2022 | 7 hrs | 4,986 (34%) | Unnamed event |
| Mar 3, 2023 | 68 hrs | 4,344 (29%) | High Wind |
| Jun 29, 2021 | 11 hrs | 2,862 (19%) | Thunderstorm Wind |
| Apr 27, 2021 | 2 hrs | 2,773 (19%) | Unnamed event |
Over the 12 years from 2014 to 2025, Harrison County recorded 548 distinct power outage events, averaging 2.7 hours per event.
The single worst outage on record in Harrison County started April 5, 2023 (Thunderstorm Wind), lasting 16 hours and leaving up to 7,689 customers without power (52% of the county) at its peak.
July has historically been the worst month for outages in Harrison County, with 73 events recorded during that month across the dataset.
Based on this history, Harrison County earns a Reliability Grade of C, placing it in the 46th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Harrison County's outage profile
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Similar counties in Indiana
Counties with the closest reliability grade and national percentile to Harrison County.
| County | Grade | National percentile |
|---|---|---|
| Knox County | C | 46th |
| Lawrence County | C | 47th |
| Marshall County | C | 45th |
| Benton County | C | 44th |
| Posey County | C | 44th |
FAQ
How often does power go out in Harrison County?
Between 2014 and 2025, Harrison County recorded 548 outage events, averaging 2.7 hours each.
What is Harrison County's reliability grade?
Harrison County has a Reliability Grade of C, in the 46th national percentile.
What was the worst power outage in Harrison County?
The worst outage on record started April 5, 2023 (Thunderstorm Wind), lasting 16 hours and affecting up to 7,689 customers.