Winchester County Power Outage History
2015–2025 · Virginia
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| May 22, 2016 | 3 hrs | 4,224 (14%) | Unnamed event |
| Feb 13, 2017 | 5 hrs | 4,216 (13%) | High Wind |
| Jun 29, 2016 | 1 hrs | 4,188 (13%) | Unnamed event |
| Oct 20, 2021 | 2 hrs | 3,433 (11%) | Unnamed event |
| Jul 11, 2017 | 3 hrs | 3,364 (11%) | Thunderstorm Wind |
Over the 11 years from 2015 to 2025, Winchester County recorded 208 distinct power outage events, averaging 1.9 hours per event.
The single worst outage on record in Winchester County started May 22, 2016, lasting 3 hours and leaving up to 4,224 customers without power (14% of the county) at its peak.
June has historically been the worst month for outages in Winchester County, with 30 events recorded during that month across the dataset.
Based on this history, Winchester County earns a Reliability Grade of A, placing it in the 93rd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Winchester County's outage profile
See more picks in our Best Small Power Stations (Under 1,000Wh) roundup.
Outage-prep kit
See our outage-prep guides.
Similar counties in Virginia
Counties with the closest reliability grade and national percentile to Winchester County.
| County | Grade | National percentile |
|---|---|---|
| Radford County | A | 95th |
| Manassas Park County | A | 96th |
| Prince William County | A | 88th |
| Frederick County | A | 86th |
| Richmond County | A | 86th |
FAQ
How often does power go out in Winchester County?
Between 2015 and 2025, Winchester County recorded 208 outage events, averaging 1.9 hours each.
What is Winchester County's reliability grade?
Winchester County has a Reliability Grade of A, in the 93rd national percentile.
What was the worst power outage in Winchester County?
The worst outage on record started May 22, 2016, lasting 3 hours and affecting up to 4,224 customers.