Henderson CountyPower Outage History
What this grade means
Average — typical outage frequency and duration nationally. This county sits in the middle of the national distribution — its outage frequency and duration over the past 12 years are close to the nationwide median, neither notably better nor worse than most other US counties. A typical amount of backup-power preparedness is reasonable here.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jan 5, 2025 | 99 hrs | 10,749 (46%) | Ice Storm |
| Mar 29, 2020 | 28 hrs | 8,164 (35%) | Tornado |
| Nov 10, 2025 | 1 hrs | 4,900 (21%) | Unnamed event |
| Mar 9, 2022 | 2 hrs | 4,472 (19%) | Thunderstorm Wind |
| Nov 15, 2018 | <1 hr | 4,288 (19%) | Winter Weather |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Henderson County, Kentucky that day.
Over the 11 years from 2015 to 2025, Henderson County recorded 429 distinct power outage events, averaging 1.9 hours per event.
The single worst outage on record in Henderson County started January 5, 2025 (Ice Storm), lasting 99 hours and leaving up to 10,749 customers without power (46% of the county) at its peak.
July has historically been the worst month for outages in Henderson County, with 53 events recorded during that month across the dataset.
Based on this history, Henderson County earns a Reliability Grade of C, placing it in the 57th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Kentucky
Counties with the closest reliability grade and national percentile to Henderson County.
| County | Grade | National percentile |
|---|---|---|
| Clark County | C | 58th |
| Scott County | C | 58th |
| Morgan County | C | 57th |
| Marshall County | C | 56th |
| Crittenden County | C | 56th |
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 Henderson County?
Between 2015 and 2025, Henderson County recorded 429 outage events, averaging 1.9 hours each.
What is Henderson County's reliability grade?
Henderson County has a Reliability Grade of C, in the 57th national percentile.
What was the worst power outage in Henderson County?
The worst outage on record started January 5, 2025 (Ice Storm), lasting 99 hours and affecting up to 10,749 customers.