Power outages in East Helena, MT
Live outages for East Helena and the surrounding area, updated every 10 minutes. East Helena has 2,325 residents.
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No live outage data for East Helena yet.
Outage map
East HelenaLewis and Clark County
Outage history in Lewis and Clark County, which includes East Helena
2014–2025 recordLewis and Clark County averaged 19 significant outages a year in 2023–2025, more than most Montana counties.
In the 12 months to December 2025, there were 23. Half were over within 2 hours; the longest lasted 2.4 days, starting December 17, 2025.
The largest on record began June 4, 2021, with 27,788 customers out at once.
Outages are most common in July.
19significant 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.2.5 hourstypical (median) length
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Half of significant outages here ended sooner than this, and half lasted longer.2.4 dayslongest on record (December 2025)
27,788most 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. |
|---|---|---|---|
| June 4, 2021 | 27,788 | 3 hours | 70,614 |
| December 17, 2025 | 9,800 | 2.4 days | 145,893 |
| June 3, 2020 | 8,404 | 2.5 hours | 11,208 |
| July 19, 2021 | 5,593 | 2 hours | 11,185 |
| April 5, 2021 | 5,516 | 19 hours | 19,140 |
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.