County annual report · FIPS 30045
2025 Judith Basin County, MT Power Outage Report
In 2025, customers in Judith Basin County, MT went without power for an average of 14.5 hours, a total of 15K customer-hours (Montana average 6.8 hours). That ranks 10th worst of 51 Montana counties and 529th of 3,000 nationally.
Compared with MT, the US and 2024
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Judith Basin County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 8, 2025 18:00 | January 9, 2025 00:15 | 6h 15m | 508 | 1,192 |
| 2 | March 25, 2025 13:45 | March 25, 2025 15:45 | 2h | 508 | 1,016 |
| 3 | August 17, 2025 22:45 | August 18, 2025 00:15 | 1h 30m | 508 | 762 |
| 4 | September 16, 2025 16:30 | September 16, 2025 22:45 | 6h 15m | 508 | 1,410 |
| 5 | December 17, 2025 13:30 | December 17, 2025 16:15 | 2h 45m | 508 | 1,270 |
| 6 | December 19, 2025 09:00 | December 19, 2025 16:15 | 7h 15m | 508 | 3,683 |
| 7 | December 16, 2025 09:45 | December 16, 2025 14:45 | 5h | 227 | 666 |
| 8 | March 10, 2025 18:45 | March 10, 2025 21:15 | 2h 30m | 135 | 318 |
| 9 | September 27, 2025 08:00 | September 27, 2025 18:45 | 10h 45m | 120 | 661 |
| 10 | January 21, 2025 04:15 | January 21, 2025 10:45 | 6h 30m | 105 | 645 |
Outage episodes by size in 2025: 11 reached 100+ customers, 0 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Judith Basin County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| NorthWestern Energy LLC - (MT) | 2024 | 3.9 hrs | 1.30 | 2.0 hrs | 0.95 |
| Fergus Electric Coop, Inc | - | - | - | - | - |
| Sun River Electric Coop, Inc | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Montana's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,006 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Judith Basin County has data for 2020–2025.
Cite this report
MassOutage (massoutage.com), Judith Basin County, MT annual power outage report, 2025, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2025/montana/judith-basin-county