massoutage

County annual report · FIPS 29111

2025 Lewis County, MO Power Outage Report

In 2025, customers in Lewis County, MO went without power for an average of 1.1 hours, a total of 6,543 customer-hours (Missouri average 8.9 hours). That ranks 108th worst of 115 Missouri counties and 2733rd of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
1.1
6,054 customers
Customer-hours out
6,543
Peak customers out
370
Outages ≥1,000 out
0
0 of 10,000+ · 257 total
Longest outage
4d 5h
began April 18, 2025
Rank in state
108th/115
2733rd of 3,000 US

Compared with MO, the US and 2024

Lewis County, MO average hours without power per customer compared with state and national averages, 2025Lewis County 1.1 hours, Missouri average 8.9 hours, US average 5.9 hours, Lewis County, 2024 6.1 hoursLewis CountyLewis County1.1hMissouri averageMissouri average8.9hUS averageUS average5.9hLewis County, 2024Lewis County, 20246.1h
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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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Lewis County, MO customer-hours without power by month, 2025Jan 216, Feb 65, Mar 1,674, Apr 427, May 371, Jun 1,306, Jul 726, Aug 800, Sep 182, Oct 208, Nov 293, Dec 27505001k1.5k2k216Jan65Feb1,674Mar427Apr371May1,306Jun726Jul800Aug182Sep208Oct293Nov275Dec
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Customer-hours; March was the worst month.

Lewis County year over year

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Lewis County, MO: average hours without power per customer by year2015: 1.6h; 2016: 0.3h; 2017: 0.2h; 2018: 1.0h, coverage 80%; 2019: 0.7h, coverage 95%; 2020: 0.8h, coverage 95%; 2021: 1.8h, coverage 95%; 2022: 1.5h, coverage 95%; 2023: 1.5h; 2024: 6.1h; 2025: 1.1h024680%50%100%1.6h20150.3h20160.2h20171.0h20180.7h20190.8h20201.8h20211.5h20221.5h20236.1h20241.1h2025
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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 Lewis County, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 23, 2025 00:30July 23, 2025 01:0030m370183
2June 3, 2025 23:30June 4, 2025 03:003h 30m317416
3September 29, 2025 18:15September 29, 2025 19:301h 15m22659
4March 22, 2025 01:00March 22, 2025 05:304h 30m225235
5March 15, 2025 00:15March 15, 2025 06:456h 30m211614
6June 29, 2025 11:00June 29, 2025 14:303h 30m190665
7March 16, 2025 21:00March 17, 2025 14:1517h 15m167365
8March 26, 2025 08:45March 26, 2025 10:301h 45m165289
9May 17, 2025 00:15May 17, 2025 01:451h 30m97138
10June 26, 2025 19:30June 26, 2025 20:451h 15m7241

Outage episodes by size in 2025: 8 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 Lewis 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
Ameren-----
Lewis County Rural E C A-----
Missouri Rural Electric Coop-----

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 ÷ 6,054 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. Lewis County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Lewis 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/lewis-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON