County annual report · FIPS 30021
2023 Dawson County, MT Power Outage Report
In 2023, customers in Dawson County, MT went without power for an average of 0.7 hours, a total of 5,448 customer-hours (Montana average 1.8 hours). That ranks 39th worst of 50 Montana counties and 2759th of 2,977 nationally.
Compared with MT, the US and 2022
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Dawson County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 19, 2023 04:00 | June 19, 2023 05:45 | 1h 45m | 1,931 | 1,688 |
| 2 | June 13, 2023 22:15 | June 14, 2023 09:15 | 11h | 892 | 1,806 |
| 3 | August 31, 2023 02:15 | August 31, 2023 03:15 | 1h | 210 | 154 |
| 4 | August 30, 2023 16:30 | August 30, 2023 18:45 | 2h 15m | 208 | 297 |
| 5 | October 25, 2023 04:45 | October 25, 2023 20:30 | 15h 45m | 200 | 359 |
| 6 | September 10, 2023 12:00 | September 10, 2023 13:30 | 1h 30m | 192 | 173 |
| 7 | September 22, 2023 22:30 | September 23, 2023 00:15 | 1h 45m | 128 | 122 |
| 8 | May 24, 2023 04:00 | May 24, 2023 06:45 | 2h 45m | 71 | 136 |
| 9 | September 9, 2023 21:45 | September 9, 2023 22:30 | 45m | 65 | 20 |
| 10 | August 23, 2023 05:30 | August 23, 2023 10:15 | 4h 45m | 52 | 104 |
Outage episodes by size in 2023: 7 reached 100+ customers, 1 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 Dawson County reported on EIA Form 861 for 2023, 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 |
|---|---|---|---|---|---|
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Montana-Dakota Utilities Co | - | - | - | - | - |
| McCone Electric Coop Inc | - | - | - | - | - |
| Tongue River Electric Coop Inc | - | - | - | - | - |
| Goldenwest Electric Coop, Inc | - | - | - | - | - |
| Lower Yellowstone R E A, 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 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 7,435 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. Dawson County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Dawson County, MT annual power outage report, 2023, 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/). https://massoutage.com/reports/2023/montana/dawson-county