Lyon CountyPower Outage History
What this grade means
Worse than average — more frequent or longer outages than most counties. This county's recorded history shows more frequent outages and/or longer restoration times than most US counties over the same 12-year period. If you live here, it's worth taking backup power more seriously than an average household would.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| May 26, 2024 | 95 hrs | 4,316 (56%) | Tornado |
| Jan 5, 2025 | 31 hrs | 2,869 (37%) | Winter Weather |
| Mar 1, 2017 | 14 hrs | 2,861 (37%) | Thunderstorm Wind |
| Jul 20, 2023 | 8 hrs | 2,638 (34%) | Thunderstorm Wind |
| Mar 3, 2023 | 76 hrs | 2,372 (31%) | Strong Wind |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Lyon County, Kentucky that day.
Over the 12 years from 2014 to 2025, Lyon County recorded 713 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Lyon County started May 26, 2024 (Tornado), lasting 95 hours and leaving up to 4,316 customers without power (56% of the county) at its peak.
July has historically been the worst month for outages in Lyon County, with 97 events recorded during that month across the dataset.
Based on this history, Lyon County earns a Reliability Grade of D, placing it in the 30th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Kentucky
Counties with the closest reliability grade and national percentile to Lyon County.
| County | Grade | National percentile |
|---|---|---|
| Logan County | D | 30th |
| Hancock County | D | 30th |
| Trimble County | D | 31st |
| Monroe County | D | 31st |
| McLean County | D | 31st |
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 Lyon County?
Between 2014 and 2025, Lyon County recorded 713 outage events, averaging 2.4 hours each.
What is Lyon County's reliability grade?
Lyon County has a Reliability Grade of D, in the 30th national percentile.
What was the worst power outage in Lyon County?
The worst outage on record started May 26, 2024 (Tornado), lasting 95 hours and affecting up to 4,316 customers.