Power outages in Ennis, MT
Live outages for Ennis and the surrounding area, updated every 10 minutes. Ennis has 1,126 residents.
Right now
No live outage data for Ennis yet.
Outage map
EnnisMadison County
Outage history in Madison County, which includes Ennis
2014–2025 recordMadison County averaged 28 significant outages a year in 2023–2025, more than most Montana counties.
In the 12 months to December 2025, there were 28. Half were over within 4.5 hours; the longest lasted 10 hours, starting May 30, 2025.
The largest on record began November 8, 2020, with 6,110 customers out at once.
Outages are most common in June.
28significant 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.23 hourslongest on record (August 2020)
6,110most 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 8, 2020 | 6,110 | 16 hours | 95,810 |
| September 10, 2024 | 3,687 | 15 minutes | 922 |
| October 11, 2021 | 2,860 | 8 hours | 11,159 |
| September 16, 2025 | 1,953 | 4 hours | 7,324 |
| June 28, 2022 | 1,863 | 7.5 hours | 3,252 |
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.