Lake County Power Outage History
2014–2025 · Ohio
Worse than average — more frequent or longer 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 |
|---|---|---|---|
| Aug 6, 2024 | 143 hrs | 65,283 (54%) | Thunderstorm Wind |
| Jan 28, 2016 | 2 hrs | 46,242 (38%) | Unnamed event |
| Jun 29, 2015 | 1 hrs | 41,778 (34%) | Thunderstorm Wind |
| Aug 25, 2023 | 114 hrs | 38,886 (32%) | Flash Flood |
| Jun 29, 2015 | 2 hrs | 38,610 (32%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Lake County recorded 1,172 distinct power outage events, averaging 3.4 hours per event.
The single worst outage on record in Lake County started August 6, 2024 (Thunderstorm Wind), lasting 143 hours and leaving up to 65,283 customers without power (54% of the county) at its peak.
June has historically been the worst month for outages in Lake County, with 158 events recorded during that month across the dataset.
Based on this history, Lake County earns a Reliability Grade of D, placing it in the 22nd 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 Lake County.
| County | Grade | National percentile |
|---|---|---|
| Perry County | D | 22nd |
| Monroe County | D | 22nd |
| Brown County | D | 24th |
| Jackson County | D | 25th |
| Ashtabula County | D | 26th |
FAQ
How often does power go out in Lake County?
Between 2014 and 2025, Lake County recorded 1,172 outage events, averaging 3.4 hours each.
What is Lake County's reliability grade?
Lake County has a Reliability Grade of D, in the 22nd national percentile.
What was the worst power outage in Lake County?
The worst outage on record started August 6, 2024 (Thunderstorm Wind), lasting 143 hours and affecting up to 65,283 customers.