Power outages in Harlem, MT
Live outages for Harlem and the surrounding area, updated every 10 minutes. Harlem has 750 residents.
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No live outage data for Harlem yet.
Outage map
HarlemBlaine County
Outage history in Blaine County, which includes Harlem
2014–2025 recordBlaine County averaged 8.3 significant outages a year in 2023–2025, about typical for Montana counties.
In the 12 months to December 2025, there were 12. Half were over within 2.5 hours; the longest lasted 21 hours, starting December 17, 2025.
The largest on record began December 17, 2025, with 4,330 customers out at once.
8.3significant outages a year (2023–2025)
i
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 hourstypical (median) length
i
Half of significant outages here ended sooner than this, and half lasted longer.21 hourslongest on record (December 2025)
4,330most 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. |
|---|---|---|---|
| December 17, 2025 | 4,330 | 21 hours | 14,539 |
| November 5, 2021 | 2,641 | 7 hours | 17,855 |
| December 26, 2025 | 2,540 | 3 hours | 6,908 |
| July 7, 2020 | 1,568 | 4 hours | 6,058 |
| November 19, 2025 | 1,568 | 8 hours | 11,322 |
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.