Bryan CountyPower Outage History
What this grade means
Average — typical outage frequency and duration nationally. This county sits in the middle of the national distribution — its outage frequency and duration over the past 12 years are close to the nationwide median, neither notably better nor worse than most other US counties. A typical amount of backup-power preparedness is reasonable here.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Mar 30, 2016 | 2 hrs | 14,405 (48%) | Hail |
| Jan 19, 2016 | <1 hr | 14,096 (47%) | Unnamed event |
| May 16, 2022 | 41 hrs | 8,717 (29%) | Thunderstorm Wind |
| Mar 4, 2025 | 41 hrs | 7,664 (26%) | Thunderstorm Wind |
| Jun 9, 2025 | 24 hrs | 5,759 (19%) | Flash Flood |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Bryan County, Oklahoma that day.
Over the 12 years from 2014 to 2025, Bryan County recorded 528 distinct power outage events, averaging 3.1 hours per event.
The single worst outage on record in Bryan County started March 30, 2016 (Hail), lasting 2 hours and leaving up to 14,405 customers without power (48% of the county) at its peak.
May has historically been the worst month for outages in Bryan County, with 76 events recorded during that month across the dataset.
Based on this history, Bryan County earns a Reliability Grade of C, placing it in the 43rd percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Oklahoma
Counties with the closest reliability grade and national percentile to Bryan County.
| County | Grade | National percentile |
|---|---|---|
| Mayes County | C | 44th |
| Muskogee County | C | 44th |
| Craig County | C | 45th |
| Atoka County | C | 45th |
| Osage County | C | 45th |
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 Bryan County?
Between 2014 and 2025, Bryan County recorded 528 outage events, averaging 3.1 hours each.
What is Bryan County's reliability grade?
Bryan County has a Reliability Grade of C, in the 43rd national percentile.
What was the worst power outage in Bryan County?
The worst outage on record started March 30, 2016 (Hail), lasting 2 hours and affecting up to 14,405 customers.