Grayson CountyPower Outage History
What this grade means
Bottom 20% least reliable nationally — frequent and/or long outages. This county ranks in the least reliable fifth of all US counties in our dataset: some combination of frequent outages, long restoration times, or customers affected puts it near the bottom nationally. Backup power is worth prioritizing here rather than treating it as optional.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Feb 12, 2025 | 164 hrs | 10,665 (99%) | Winter Storm |
| Oct 17, 2015 | 2 hrs | 9,567 (89%) | Unnamed event |
| Nov 15, 2018 | 86 hrs | 7,299 (68%) | Ice Storm |
| Nov 9, 2025 | 4 hrs | 7,038 (66%) | Unnamed event |
| Dec 1, 2020 | <1 hr | 7,020 (65%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Grayson County, Virginia that day.
Over the 12 years from 2014 to 2025, Grayson County recorded 1,171 distinct power outage events, averaging 5.3 hours per event.
The single worst outage on record in Grayson County started February 12, 2025 (Winter Storm), lasting 164 hours and leaving up to 10,665 customers without power (99% of the county) at its peak.
May has historically been the worst month for outages in Grayson County, with 126 events recorded during that month across the dataset.
Based on this history, Grayson County earns a Reliability Grade of F, placing it in the 2nd percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Virginia
Counties with the closest reliability grade and national percentile to Grayson County.
| County | Grade | National percentile |
|---|---|---|
| Carroll County | F | 3rd |
| Floyd County | F | 1st |
| Scott County | F | 3rd |
| Bland County | F | 1st |
| Russell County | F | 4th |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Grayson County?
Between 2014 and 2025, Grayson County recorded 1,171 outage events, averaging 5.3 hours each.
What is Grayson County's reliability grade?
Grayson County has a Reliability Grade of F, in the 2nd national percentile.
What was the worst power outage in Grayson County?
The worst outage on record started February 12, 2025 (Winter Storm), lasting 164 hours and affecting up to 10,665 customers.