Golden Valley CountyPower Outage History
2020–2025 · Montana
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 |
|---|---|---|---|
| Jul 5, 2022 | 7 hrs | 678 (68%) | Unnamed event |
| Oct 3, 2022 | 3 hrs | 607 (61%) | Unnamed event |
| Jun 15, 2021 | 3 hrs | 591 (60%) | Unnamed event |
| Jun 8, 2023 | 4 hrs | 568 (57%) | Flash Flood |
| Jun 2, 2022 | 3 hrs | 560 (57%) | Unnamed event |
Over the 6 years from 2020 to 2025, Golden Valley County recorded 94 distinct power outage events, averaging 3.2 hours per event.
The single worst outage on record in Golden Valley County started July 5, 2022, lasting 7 hours and leaving up to 678 customers without power (68% of the county) at its peak.
June has historically been the worst month for outages in Golden Valley County, with 17 events recorded during that month across the dataset.
Based on this history, Golden Valley County earns a Reliability Grade of C, placing it in the 58th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Golden Valley County's outage profile
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Read our mission →Similar counties in Montana
Counties with the closest reliability grade and national percentile to Golden Valley County.
| County | Grade | National percentile |
|---|---|---|
| Carbon County | B | 61st |
| Musselshell County | B | 61st |
| Powell County | C | 55th |
| Sweet Grass County | C | 54th |
| Blaine County | B | 64th |
Most reliable counties in Montana
The top 3 counties in Montana by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Powder River County | A | 95th |
| Roosevelt County | A | 94th |
| Fallon County | A | 94th |
Least reliable counties in Montana
The bottom 3 counties in Montana by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Lincoln County | F | 14th |
| Sanders County | D | 20th |
| Madison County | D | 31st |
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 Golden Valley County?
Between 2020 and 2025, Golden Valley County recorded 94 outage events, averaging 3.2 hours each.
What is Golden Valley County's reliability grade?
Golden Valley County has a Reliability Grade of C, in the 58th national percentile.
What was the worst power outage in Golden Valley County?
The worst outage on record started July 5, 2022, lasting 7 hours and affecting up to 678 customers.