County annual report · FIPS 29139
2025 Montgomery County, MO Power Outage Report
In 2025, customers in Montgomery County, MO went without power for an average of 3.2 hours, a total of 17K customer-hours (Missouri average 8.9 hours). That ranks 82nd worst of 115 Missouri counties and 1986th of 3,000 nationally.
Compared with MO, the US and 2024
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in Montgomery 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 | March 23, 2025 09:15 | March 23, 2025 18:15 | 9h | 629 | 2,724 |
| 2 | July 4, 2025 17:30 | July 4, 2025 22:30 | 5h | 569 | 748 |
| 3 | February 19, 2025 09:30 | February 19, 2025 15:45 | 6h 15m | 435 | 223 |
| 4 | July 21, 2025 04:15 | July 21, 2025 15:00 | 10h 45m | 262 | 535 |
| 5 | November 23, 2025 02:45 | November 27, 2025 00:45 | 3d 22h | 218 | 2,227 |
| 6 | March 14, 2025 19:30 | March 15, 2025 22:30 | 1d 3h | 180 | 3,108 |
| 7 | April 10, 2025 05:45 | April 10, 2025 08:15 | 2h 30m | 150 | 121 |
| 8 | October 23, 2025 14:00 | October 23, 2025 20:30 | 6h 30m | 143 | 61 |
| 9 | June 5, 2025 02:45 | June 5, 2025 08:00 | 5h 15m | 134 | 335 |
| 10 | October 3, 2025 22:45 | October 4, 2025 07:45 | 9h | 128 | 746 |
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 Montgomery 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 |
|---|---|---|---|---|---|
| Union Electric Co - (MO) | 2024 | 2.5 hrs | 0.77 | 1.6 hrs | 0.67 |
| Consolidated Electric Coop | 2024 | 3.1 hrs | 1.39 | 1.7 hrs | 0.83 |
| Cuivre River Electric Coop Inc | 2024 | 2.2 hrs | 1.27 | 2.2 hrs | 1.27 |
| Ameren | - | - | - | - | - |
| Callaway Electric Cooperative | - | - | - | - | - |
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 Missouri's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,285 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. Montgomery County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Montgomery County, MO 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/missouri/montgomery-county