Alleghany County Power Outage History
2015–2025 · North Carolina
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 |
|---|---|---|---|
| Jun 10, 2021 | 1 hrs | 8,223 (38%) | Unnamed event |
| Sep 13, 2016 | 2 hrs | 5,385 (25%) | Unnamed event |
| Sep 27, 2024 | 13 hrs | 4,295 (20%) | Hurricane Helene |
| Sep 28, 2024 | 24 hrs | 4,089 (19%) | Hurricane Helene |
| Mar 2, 2023 | 2 hrs | 3,733 (17%) | Unnamed event |
Over the 11 years from 2015 to 2025, Alleghany County recorded 468 distinct power outage events, averaging 2.6 hours per event.
The single worst outage on record in Alleghany County started June 10, 2021, lasting 1 hours and leaving up to 8,223 customers without power (38% of the county) at its peak.
September has historically been the worst month for outages in Alleghany County, with 48 events recorded during that month across the dataset.
Based on this history, Alleghany County earns a Reliability Grade of C, placing it in the 57th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Alleghany 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 or the North Carolina storm prep checklist.
Similar counties in North Carolina
Counties with the closest reliability grade and national percentile to Alleghany County.
| County | Grade | National percentile |
|---|---|---|
| Martin County | C | 57th |
| Buncombe County | C | 56th |
| Cumberland County | C | 57th |
| Randolph County | C | 56th |
| Davidson County | C | 57th |
FAQ
How often does power go out in Alleghany County?
Between 2015 and 2025, Alleghany County recorded 468 outage events, averaging 2.6 hours each.
What is Alleghany County's reliability grade?
Alleghany County has a Reliability Grade of C, in the 57th national percentile.
What was the worst power outage in Alleghany County?
The worst outage on record started June 10, 2021, lasting 1 hours and affecting up to 8,223 customers.