Lewis CountyPower Outage History
2014–2025 · Kentucky
Bottom 20% least reliable nationally — frequent and/or long outages.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 9, 2020 | 34 hrs | 5,231 (89%) | Thunderstorm Wind |
| Jan 11, 2020 | 18 hrs | 5,146 (87%) | Unnamed event |
| Jul 13, 2019 | 42 hrs | 5,010 (85%) | Unnamed event |
| Sep 27, 2024 | 103 hrs | 4,421 (75%) | Hurricane Helene |
| Dec 7, 2024 | 39 hrs | 3,290 (56%) | Unnamed event |
Over the 12 years from 2014 to 2025, Lewis County recorded 804 distinct power outage events, averaging 3.6 hours per event.
The single worst outage on record in Lewis County started April 9, 2020 (Thunderstorm Wind), lasting 34 hours and leaving up to 5,231 customers without power (89% of the county) at its peak.
May has historically been the worst month for outages in Lewis County, with 101 events recorded during that month across the dataset.
Based on this history, Lewis County earns a Reliability Grade of F, placing it in the 6th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Kentucky
Counties with the closest reliability grade and national percentile to Lewis County.
| County | Grade | National percentile |
|---|---|---|
| Lee County | F | 5th |
| Elliott County | F | 5th |
| Breathitt County | F | 5th |
| Johnson County | F | 7th |
| Menifee County | F | 5th |
Most reliable counties in Kentucky
The top 3 counties in Kentucky by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Taylor County | A | 96th |
| Webster County | A | 92nd |
| Green County | A | 91st |
Least reliable counties in Kentucky
The bottom 3 counties in Kentucky by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Leslie County | F | 0th |
| Lawrence County | F | 1st |
| Knott County | F | 2nd |
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 Lewis County?
Between 2014 and 2025, Lewis County recorded 804 outage events, averaging 3.6 hours each.
What is Lewis County's reliability grade?
Lewis County has a Reliability Grade of F, in the 6th national percentile.
What was the worst power outage in Lewis County?
The worst outage on record started April 9, 2020 (Thunderstorm Wind), lasting 34 hours and affecting up to 5,231 customers.