Williams County Power Outage History
2014–2025 · Ohio
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jun 10, 2020 | 12 hrs | 2,063 (13%) | Thunderstorm Wind |
| Oct 13, 2017 | 5 hrs | 2,024 (13%) | Unnamed event |
| Feb 12, 2019 | 33 hrs | 1,977 (12%) | Ice Storm |
| May 28, 2018 | 6 hrs | 1,801 (11%) | Unnamed event |
| Jul 21, 2022 | 0 hrs | 1,799 (11%) | Unnamed event |
Over the 12 years from 2014 to 2025, Williams County recorded 180 distinct power outage events, averaging 3.0 hours per event.
The single worst outage on record in Williams County started June 10, 2020 (Thunderstorm Wind), lasting 12 hours and leaving up to 2,063 customers without power (13% of the county) at its peak.
June has historically been the worst month for outages in Williams County, with 28 events recorded during that month across the dataset.
Based on this history, Williams County earns a Reliability Grade of A, placing it in the 87th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Williams County's outage profile
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Similar counties in Ohio
Counties with the closest reliability grade and national percentile to Williams County.
| County | Grade | National percentile |
|---|---|---|
| Union County | A | 87th |
| Seneca County | A | 87th |
| Wood County | A | 88th |
| Marion County | A | 84th |
| Auglaize County | A | 90th |
FAQ
How often does power go out in Williams County?
Between 2014 and 2025, Williams County recorded 180 outage events, averaging 3.0 hours each.
What is Williams County's reliability grade?
Williams County has a Reliability Grade of A, in the 87th national percentile.
What was the worst power outage in Williams County?
The worst outage on record started June 10, 2020 (Thunderstorm Wind), lasting 12 hours and affecting up to 2,063 customers.