Accomack County Power Outage History
2014–2025 · Virginia
Better than average — fewer or shorter outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 4, 2020 | 32 hrs | 14,383 (27%) | Tropical Storm Isaias |
| Dec 1, 2021 | 3 hrs | 13,141 (25%) | Unnamed event |
| Jan 23, 2016 | 18 hrs | 11,020 (21%) | Winter Storm |
| Sep 10, 2015 | 1 hrs | 10,614 (20%) | Unnamed event |
| Sep 2, 2016 | 1 hrs | 10,596 (20%) | Tropical Storm Hermine |
Over the 12 years from 2014 to 2025, Accomack County recorded 678 distinct power outage events, averaging 1.8 hours per event.
The single worst outage on record in Accomack County started August 4, 2020 (Tropical Storm Isaias), lasting 32 hours and leaving up to 14,383 customers without power (27% of the county) at its peak.
July has historically been the worst month for outages in Accomack County, with 84 events recorded during that month across the dataset.
Based on this history, Accomack County earns a Reliability Grade of B, placing it in the 78th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Accomack County's outage profile
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Similar counties in Virginia
Counties with the closest reliability grade and national percentile to Accomack County.
| County | Grade | National percentile |
|---|---|---|
| Buena Vista County | B | 77th |
| Covington County | B | 75th |
| Loudoun County | B | 75th |
| Fairfax County | B | 74th |
| Staunton County | A | 82nd |
FAQ
How often does power go out in Accomack County?
Between 2014 and 2025, Accomack County recorded 678 outage events, averaging 1.8 hours each.
What is Accomack County's reliability grade?
Accomack County has a Reliability Grade of B, in the 78th national percentile.
What was the worst power outage in Accomack County?
The worst outage on record started August 4, 2020 (Tropical Storm Isaias), lasting 32 hours and affecting up to 14,383 customers.