Warren County Power Outage History
2014–2025 · Ohio
Better than average — fewer or shorter 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 13, 2022 | 51 hrs | 32,564 (28%) | Thunderstorm Wind |
| Aug 11, 2017 | 0 hrs | 26,571 (23%) | Unnamed event |
| Sep 27, 2024 | 80 hrs | 20,993 (18%) | Hurricane Helene |
| Aug 30, 2015 | 3 hrs | 17,341 (15%) | Unnamed event |
| Jun 23, 2016 | 23 hrs | 16,808 (15%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Warren County recorded 1,026 distinct power outage events, averaging 2.7 hours per event.
The single worst outage on record in Warren County started June 13, 2022 (Thunderstorm Wind), lasting 51 hours and leaving up to 32,564 customers without power (28% of the county) at its peak.
July has historically been the worst month for outages in Warren County, with 138 events recorded during that month across the dataset.
Based on this history, Warren County earns a Reliability Grade of B, placing it in the 62nd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Warren County's outage profile
See more picks in our Best Small Power Stations (Under 1,000Wh) roundup.
Outage-prep kit
See our outage-prep guides.
Similar counties in Ohio
Counties with the closest reliability grade and national percentile to Warren County.
| County | Grade | National percentile |
|---|---|---|
| Wayne County | B | 62nd |
| Darke County | B | 61st |
| Licking County | B | 63rd |
| Mahoning County | B | 63rd |
| Montgomery County | C | 60th |
FAQ
How often does power go out in Warren County?
Between 2014 and 2025, Warren County recorded 1,026 outage events, averaging 2.7 hours each.
What is Warren County's reliability grade?
Warren County has a Reliability Grade of B, in the 62nd national percentile.
What was the worst power outage in Warren County?
The worst outage on record started June 13, 2022 (Thunderstorm Wind), lasting 51 hours and affecting up to 32,564 customers.