Suffolk County Power Outage History
2015–2025 · Virginia
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 4, 2020 | 80 hrs | 25,212 (51%) | Tropical Storm Isaias |
| Jul 30, 2019 | 1 hrs | 14,014 (28%) | Unnamed event |
| Oct 8, 2016 | 70 hrs | 10,844 (22%) | Heavy Rain |
| Aug 19, 2015 | 0 hrs | 9,598 (19%) | Unnamed event |
| Feb 15, 2024 | 1 hrs | 7,325 (15%) | Unnamed event |
Over the 11 years from 2015 to 2025, Suffolk County recorded 678 distinct power outage events, averaging 2.6 hours per event.
The single worst outage on record in Suffolk County started August 4, 2020 (Tropical Storm Isaias), lasting 80 hours and leaving up to 25,212 customers without power (51% of the county) at its peak.
July has historically been the worst month for outages in Suffolk County, with 101 events recorded during that month across the dataset.
Based on this history, Suffolk County earns a Reliability Grade of C, placing it in the 52nd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Suffolk County's outage profile
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Similar counties in Virginia
Counties with the closest reliability grade and national percentile to Suffolk County.
| County | Grade | National percentile |
|---|---|---|
| Prince George County | C | 52nd |
| Spotsylvania County | C | 53rd |
| Fredericksburg County | C | 51st |
| Greensville County | C | 51st |
| Norfolk County | C | 54th |
FAQ
How often does power go out in Suffolk County?
Between 2015 and 2025, Suffolk County recorded 678 outage events, averaging 2.6 hours each.
What is Suffolk County's reliability grade?
Suffolk County has a Reliability Grade of C, in the 52nd national percentile.
What was the worst power outage in Suffolk County?
The worst outage on record started August 4, 2020 (Tropical Storm Isaias), lasting 80 hours and affecting up to 25,212 customers.