Union County Power Outage History
2014–2025 · North Carolina
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 |
|---|---|---|---|
| May 23, 2018 | 1 hrs | 51,973 (30%) | Unnamed event |
| May 23, 2018 | 1 hrs | 51,920 (30%) | Unnamed event |
| Sep 27, 2024 | 38 hrs | 25,878 (15%) | Tropical Storm |
| Oct 11, 2018 | 74 hrs | 20,536 (12%) | Tropical Storm |
| May 22, 2016 | 3 hrs | 16,832 (10%) | Unnamed event |
Over the 12 years from 2014 to 2025, Union County recorded 1,087 distinct power outage events, averaging 2.5 hours per event.
The single worst outage on record in Union County started May 23, 2018, lasting 1 hours and leaving up to 51,973 customers without power (30% of the county) at its peak.
June has historically been the worst month for outages in Union County, with 130 events recorded during that month across the dataset.
Based on this history, Union County earns a Reliability Grade of B, placing it in the 74th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Union 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 or the North Carolina storm prep checklist.
Similar counties in North Carolina
Counties with the closest reliability grade and national percentile to Union County.
| County | Grade | National percentile |
|---|---|---|
| Avery County | B | 75th |
| Granville County | B | 72nd |
| Perquimans County | B | 67th |
| Hertford County | B | 67th |
| Halifax County | B | 66th |
FAQ
How often does power go out in Union County?
Between 2014 and 2025, Union County recorded 1,087 outage events, averaging 2.5 hours each.
What is Union County's reliability grade?
Union County has a Reliability Grade of B, in the 74th national percentile.
What was the worst power outage in Union County?
The worst outage on record started May 23, 2018, lasting 1 hours and affecting up to 51,973 customers.