Cumberland CountyPower Outage History
What this grade means
(How grades are calculated)Bottom 20% least reliable nationally — frequent and/or long outages. This county ranks in the least reliable fifth of all US counties in our dataset: some combination of frequent outages, long restoration times, or customers affected puts it near the bottom nationally. Backup power is worth prioritizing here rather than treating it as optional.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Oct 11, 2018 | 127 hrs | 4,042 (62%) | Heavy Rain |
| Jan 3, 2022 | 155 hrs | 3,590 (55%) | Winter Storm |
| Feb 12, 2025 | 88 hrs | 3,063 (47%) | Winter Storm |
| Feb 13, 2021 | 119 hrs | 2,845 (44%) | Winter Weather |
| Jan 6, 2025 | 33 hrs | 2,561 (39%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Cumberland County, Virginia that day.
Over the 11 years from 2015 to 2025, Cumberland County recorded 947 distinct power outage events, averaging 3.8 hours per event.
The single worst outage on record in Cumberland County started October 11, 2018 (Heavy Rain), lasting 127 hours and leaving up to 4,042 customers without power (62% of the county) at its peak.
July has historically been the worst month for outages in Cumberland County, with 127 events recorded during that month across the dataset.
Based on this history, Cumberland County earns a Reliability Grade of F, placing it in the 4th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Virginia
Counties with the closest reliability grade and national percentile to Cumberland County.
| County | Grade | National percentile |
|---|---|---|
| Dickenson County | F | 5th |
| Russell County | F | 4th |
| Franklin County | F | 5th |
| Buckingham County | F | 5th |
| Charles City County | F | 5th |
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 Cumberland County?
Between 2015 and 2025, Cumberland County recorded 947 outage events, averaging 3.8 hours each.
What is Cumberland County's reliability grade?
Cumberland County has a Reliability Grade of F, in the 4th national percentile.
What was the worst power outage in Cumberland County?
The worst outage on record started October 11, 2018 (Heavy Rain), lasting 127 hours and affecting up to 4,042 customers.