Broadwater CountyPower Outage History
2020–2025 · Montana
Top 20% most reliable nationally — infrequent, short outages. This county ranks in the most reliable fifth of all US counties in our dataset, based on 12 years of real DOE outage records: outages happen less often here, and when they do occur they tend to be resolved quickly compared to the rest of the country. Baseline outage risk is low, though a severe local storm can still occasionally cause a longer-than-usual outage regardless of the long-term track record.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jun 4, 2021 | 7 hrs | 2,279 (69%) | Unnamed event |
| Sep 29, 2022 | 2 hrs | 1,455 (44%) | Unnamed event |
| Sep 28, 2022 | 6 hrs | 1,455 (44%) | Unnamed event |
| Aug 29, 2022 | 2 hrs | 1,356 (41%) | Hail |
| Mar 29, 2021 | 6 hrs | 1,177 (36%) | Unnamed event |
Over the 6 years from 2020 to 2025, Broadwater County recorded 175 distinct power outage events, averaging 3.2 hours per event.
The single worst outage on record in Broadwater County started June 4, 2021, lasting 7 hours and leaving up to 2,279 customers without power (69% of the county) at its peak.
July has historically been the worst month for outages in Broadwater County, with 23 events recorded during that month across the dataset.
Based on this history, Broadwater County earns a Reliability Grade of A, placing it in the 81st percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Broadwater 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 Broadwater County.
| County | Grade | National percentile |
|---|---|---|
| Daniels County | A | 81st |
| Lake County | A | 80th |
| Fergus County | A | 82nd |
| Richland County | A | 83rd |
| Deer Lodge County | A | 83rd |
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 Broadwater County?
Between 2020 and 2025, Broadwater County recorded 175 outage events, averaging 3.2 hours each.
What is Broadwater County's reliability grade?
Broadwater County has a Reliability Grade of A, in the 81st national percentile.
What was the worst power outage in Broadwater County?
The worst outage on record started June 4, 2021, lasting 7 hours and affecting up to 2,279 customers.