Norfolk 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 |
|---|---|---|---|
| Jul 30, 2019 | 1 hrs | 49,521 (42%) | Unnamed event |
| Oct 8, 2016 | 91 hrs | 44,190 (38%) | Heavy Rain |
| Oct 12, 2018 | 57 hrs | 36,907 (32%) | High Wind |
| Aug 4, 2020 | 42 hrs | 33,904 (29%) | Tropical Storm Isaias |
| Apr 13, 2020 | 30 hrs | 23,567 (20%) | High Wind |
Over the 11 years from 2015 to 2025, Norfolk County recorded 1,118 distinct power outage events, averaging 2.1 hours per event.
The single worst outage on record in Norfolk County started July 30, 2019, lasting 1 hours and leaving up to 49,521 customers without power (42% of the county) at its peak.
July has historically been the worst month for outages in Norfolk County, with 149 events recorded during that month across the dataset.
Based on this history, Norfolk County earns a Reliability Grade of C, placing it in the 54th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Norfolk County's outage profile
See more picks in our Best Dual-Fuel Portable Generators for Power Outages roundup.
Champion Power Equipment 4375-Watt Dual Fuel RV Ready Portable Generator with Free 3-Year Warranty
Outage-prep kit
See our outage-prep guides.
Similar counties in Virginia
Counties with the closest reliability grade and national percentile to Norfolk County.
| County | Grade | National percentile |
|---|---|---|
| Williamsburg County | C | 54th |
| Spotsylvania County | C | 53rd |
| Hopewell County | C | 55th |
| Suffolk County | C | 52nd |
| Prince George County | C | 52nd |
FAQ
How often does power go out in Norfolk County?
Between 2015 and 2025, Norfolk County recorded 1,118 outage events, averaging 2.1 hours each.
What is Norfolk County's reliability grade?
Norfolk County has a Reliability Grade of C, in the 54th national percentile.
What was the worst power outage in Norfolk County?
The worst outage on record started July 30, 2019, lasting 1 hours and affecting up to 49,521 customers.