Power outages in Chester, MT
Live outages for Chester and the surrounding area, updated every 10 minutes. Chester has 844 residents.
Right now
No live outage data for Chester yet.
Outage map
ChesterLiberty County
Outage history in Liberty County, which includes Chester
2014–2025 recordLiberty County averaged 4.7 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 2 hours; the longest lasted 10 hours, starting December 17, 2025.
The largest on record began October 23, 2022, with 1,532 customers out at once.
Outages are most common in November.
4.7significant 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.11 hourslongest on record (January 2021)
1,532most 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. |
|---|---|---|---|
| October 23, 2022 | 1,532 | 6.5 hours | 4,002 |
| December 17, 2025 | 1,507 | 10 hours | 4,174 |
| September 14, 2020 | 1,138 | 5 hours | 2,558 |
| November 8, 2020 | 955 | 9 hours | 1,929 |
| May 7, 2024 | 846 | 2 hours | 1,127 |
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.