massoutage

County annual report · FIPS 29219

2025 Warren County, MO Power Outage Report

In 2025, customers in Warren County, MO went without power for an average of 3.4 hours, a total of 49K customer-hours (Missouri average 8.9 hours). That ranks 79th worst of 115 Missouri counties and 1932nd of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
3.4
14,348 customers
Customer-hours out
49K
Peak customers out
5,799
Outages ≥1,000 out
6
0 of 10,000+ · 622 total
Longest outage
2d 7h
began October 6, 2025
Rank in state
79th/115
1932nd of 3,000 US

Compared with MO, the US and 2024

Warren County, MO average hours without power per customer compared with state and national averages, 2025Warren County 3.4 hours, Missouri average 8.9 hours, US average 5.9 hours, Warren County, 2024 5.3 hoursWarren CountyWarren County3.4hMissouri averageMissouri average8.9hUS averageUS average5.9hWarren County, 2024Warren County, 20245.3h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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Warren County, MO customer-hours without power by month, 2025Jan 478, Feb 501, Mar 16K, Apr 3,099, May 364, Jun 999, Jul 771, Aug 501, Sep 11K, Oct 8,404, Nov 4,809, Dec 1,31605k10k15k20k478Jan501Feb16KMar3,099Apr364May999Jun771Jul501Aug11KSep8,404Oct4,809Nov1,316Dec
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Customer-hours; March was the worst month.

Warren County year over year

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Warren County, MO: average hours without power per customer by year2015: 2.6h; 2016: 5.4h; 2017: 4.9h; 2018: 6.2h, coverage 80%; 2019: 6.4h, coverage 95%; 2020: 4.6h, coverage 95%; 2021: 18.8h, coverage 95%; 2022: 6.7h, coverage 95%; 2023: 7.2h; 2024: 5.3h; 2025: 3.4h051015200%50%100%2.6h20155.4h20164.9h20176.2h20186.4h20194.6h202018.8h20216.7h20227.2h20235.3h20243.4h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Missouri customers tracked each year.

Biggest outages in Warren County, 2025

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 30, 2025 13:15September 30, 2025 14:451h 30m5,7991,451
2March 14, 2025 19:30March 16, 2025 02:451d 7h2,26212K
3October 24, 2025 03:15October 24, 2025 19:4516h 30m1,3705,152
4September 13, 2025 10:45September 13, 2025 16:155h 30m1,1892,973
5November 15, 2025 14:15November 15, 2025 15:151h1,1171,117
6November 4, 2025 21:00November 4, 2025 22:151h 15m1,112569
7March 19, 2025 17:00March 20, 2025 20:301d 3h997834
8September 27, 2025 08:00September 27, 2025 10:002h9451,654
9March 12, 2025 17:30March 12, 2025 20:152h 45m865221
10September 4, 2025 04:15September 4, 2025 05:301h 15m8361,045

Outage episodes by size in 2025: 35 reached 100+ customers, 6 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 Warren County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Union Electric Co - (MO)20242.5 hrs0.771.6 hrs0.67
Cuivre River Electric Coop Inc20242.2 hrs1.272.2 hrs1.27
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 ÷ 14,348 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. Warren County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Warren 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/warren-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON