Park County Power Outage History
2015–2025 · Montana
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 |
|---|---|---|---|
| Dec 24, 2022 | 1 hrs | 3,804 (40%) | Winter Storm |
| Mar 16, 2020 | 2 hrs | 3,435 (36%) | Winter Storm |
| Aug 8, 2021 | 6 hrs | 2,440 (26%) | Drought |
| Sep 19, 2024 | 0 hrs | 1,937 (21%) | High Wind |
| Nov 15, 2021 | 5 hrs | 1,926 (20%) | High Wind |
Over the 11 years from 2015 to 2025, Park County recorded 282 distinct power outage events, averaging 4.4 hours per event.
The single worst outage on record in Park County started December 24, 2022 (Winter Storm), lasting 1 hours and leaving up to 3,804 customers without power (40% of the county) at its peak.
October has historically been the worst month for outages in Park County, with 38 events recorded during that month across the dataset.
Based on this history, Park County earns a Reliability Grade of B, placing it in the 66th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Park County's outage profile
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Outage-prep kit
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Similar counties in Montana
Counties with the closest reliability grade and national percentile to Park County.
| County | Grade | National percentile |
|---|---|---|
| Blaine County | B | 64th |
| Phillips County | B | 69th |
| Liberty County | B | 69th |
| Wibaux County | B | 69th |
| Cascade County | B | 69th |
FAQ
How often does power go out in Park County?
Between 2015 and 2025, Park County recorded 282 outage events, averaging 4.4 hours each.
What is Park County's reliability grade?
Park County has a Reliability Grade of B, in the 66th national percentile.
What was the worst power outage in Park County?
The worst outage on record started December 24, 2022 (Winter Storm), lasting 1 hours and affecting up to 3,804 customers.