Clarke 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 |
|---|---|---|---|
| Sep 1, 2016 | <1 hr | 5,150 (33%) | Unnamed event |
| Nov 29, 2015 | 3 hrs | 5,108 (33%) | Unnamed event |
| Nov 15, 2018 | 42 hrs | 2,748 (18%) | Winter Storm |
| Jan 27, 2017 | <1 hr | 2,730 (17%) | Unnamed event |
| Feb 7, 2016 | 1 hrs | 2,728 (17%) | Flood |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Clarke County, Virginia that day.
Over the 12 years from 2014 to 2025, Clarke County recorded 731 distinct power outage events, averaging 3.0 hours per event.
The single worst outage on record in Clarke County started September 1, 2016, lasting less than 1 hour and leaving up to 5,150 customers without power (33% of the county) at its peak.
July has historically been the worst month for outages in Clarke County, with 84 events recorded during that month across the dataset.
Based on this history, Clarke County earns a Reliability Grade of C, placing it in the 60th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Virginia
Counties with the closest reliability grade and national percentile to Clarke County.
| County | Grade | National percentile |
|---|---|---|
| Page County | C | 58th |
| Caroline County | C | 57th |
| Emporia County | B | 63rd |
| Danville County | B | 63rd |
| Alexandria 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 Clarke County?
Between 2014 and 2025, Clarke County recorded 731 outage events, averaging 3.0 hours each.
What is Clarke County's reliability grade?
Clarke County has a Reliability Grade of C, in the 60th national percentile.
What was the worst power outage in Clarke County?
The worst outage on record started September 1, 2016, lasting less than 1 hour and affecting up to 5,150 customers.