Greene CountyPower Outage History
What this grade means
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Sep 27, 2024 | 8 hrs | 19,025 (21%) | Hurricane Helene |
| Jun 18, 2025 | 31 hrs | 18,051 (19%) | Flood |
| Sep 28, 2024 | 112 hrs | 14,399 (16%) | Hurricane Helene |
| Jul 29, 2016 | 3 hrs | 11,349 (12%) | Unnamed event |
| May 28, 2019 | 8 hrs | 11,213 (12%) | Hail |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Greene County, Ohio that day.
Over the 12 years from 2014 to 2025, Greene County recorded 691 distinct power outage events, averaging 3.2 hours per event.
The single worst outage on record in Greene County started September 27, 2024 (Hurricane Helene), lasting 8 hours and leaving up to 19,025 customers without power (21% of the county) at its peak.
June has historically been the worst month for outages in Greene County, with 101 events recorded during that month across the dataset.
Based on this history, Greene County earns a Reliability Grade of B, placing it in the 65th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Ohio
Counties with the closest reliability grade and national percentile to Greene County.
| County | Grade | National percentile |
|---|---|---|
| Shelby County | B | 66th |
| Hancock County | B | 67th |
| Stark County | B | 67th |
| Mahoning County | B | 63rd |
| Licking County | B | 63rd |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Greene County?
Between 2014 and 2025, Greene County recorded 691 outage events, averaging 3.2 hours each.
What is Greene County's reliability grade?
Greene County has a Reliability Grade of B, in the 65th national percentile.
What was the worst power outage in Greene County?
The worst outage on record started September 27, 2024 (Hurricane Helene), lasting 8 hours and affecting up to 19,025 customers.