Power outages in Roundup, MT
Live outages for Roundup and the surrounding area, updated every 10 minutes. Roundup has 2,075 residents.
Right now
No live outage data for Roundup yet.
Outage map
RoundupMusselshell County
Outage history in Musselshell County, which includes Roundup
2014–2025 recordMusselshell County averaged 5 significant outages a year in 2023–2025, fewer than most Montana counties.
In the 12 months to December 2025, there were 7. Half were over within 4.5 hours; the longest lasted 12 hours, starting August 18, 2025.
The largest on record began November 14, 2024, with 2,012 customers out at once.
Outages are most common in November.
5significant outages a year (2023–2025)
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At least 1% of the area's customers, and at least 100, without power at the same time. Outages less than 6 hours apart count as one.3.5 hourstypical (median) length
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Half of significant outages here ended sooner than this, and half lasted longer.1.6 dayslongest on record (April 2023)
2,012most customers out at once
| Largest events (start) | Peak out | LastediHow long this area stayed at or above the significant-outage line, not how long any one home was without power. | Customer-hoursiCustomers out multiplied by hours out, added up over the event. 1,000 customers out for 3 hours is 3,000 customer-hours. |
|---|---|---|---|
| November 14, 2024 | 2,012 | 4.5 hours | 9,054 |
| November 30, 2025 | 574 | 5.5 hours | 1,840 |
| August 19, 2025 | 541 | 3 hours | 1,488 |
| September 5, 2025 | 541 | 4.5 hours | 2,017 |
| July 29, 2025 | 528 | 10 hours | 3,126 |
Recorded outages from EAGLE-I, Oak Ridge National Laboratory (CC BY 4.0).i
From EAGLE-I, Oak Ridge National Laboratory's record of utility outage data every 15 minutes since 2014 (CC BY 4.0). It covered about 9 in 10 U.S. customers.