Spencer 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 |
|---|---|---|---|
| Mar 3, 2023 | 100 hrs | 6,094 (64%) | High Wind |
| Jul 20, 2017 | <1 hr | 5,930 (62%) | Unnamed event |
| Nov 9, 2017 | 3 hrs | 4,360 (46%) | Unnamed event |
| Feb 7, 2022 | <1 hr | 4,055 (43%) | Unnamed event |
| May 17, 2025 | 39 hrs | 3,817 (40%) | Thunderstorm Wind |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Spencer County, Kentucky that day.
Over the 11 years from 2015 to 2025, Spencer County recorded 667 distinct power outage events, averaging 2.3 hours per event.
The single worst outage on record in Spencer County started March 3, 2023 (High Wind), lasting 100 hours and leaving up to 6,094 customers without power (64% of the county) at its peak.
January has historically been the worst month for outages in Spencer County, with 80 events recorded during that month across the dataset.
Based on this history, Spencer County earns a Reliability Grade of C, placing it in the 41st percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Kentucky
Counties with the closest reliability grade and national percentile to Spencer County.
| County | Grade | National percentile |
|---|---|---|
| Warren County | C | 40th |
| Pendleton County | D | 40th |
| Gallatin County | C | 42nd |
| Lincoln County | C | 42nd |
| Nicholas County | D | 39th |
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 Spencer County?
Between 2015 and 2025, Spencer County recorded 667 outage events, averaging 2.3 hours each.
What is Spencer County's reliability grade?
Spencer County has a Reliability Grade of C, in the 41st national percentile.
What was the worst power outage in Spencer County?
The worst outage on record started March 3, 2023 (High Wind), lasting 100 hours and affecting up to 6,094 customers.