Park CountyPower Outage History
What this grade means
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
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%) | Wildfire |
| Sep 19, 2024 | <1 hr | 1,937 (21%) | High Wind |
| Nov 15, 2021 | 5 hrs | 1,926 (20%) | High Wind |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Park County, Montana that day.
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).
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 |
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 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.