massoutage

County annual report · FIPS 29001

2025 Adair County, MO Power Outage Report

In 2025, customers in Adair County, MO went without power for an average of 1.4 hours, a total of 17K customer-hours (Missouri average 8.9 hours). That ranks 103rd worst of 115 Missouri counties and 2642nd of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
1.4
12,158 customers
Customer-hours out
17K
Peak customers out
756
Outages ≥1,000 out
0
0 of 10,000+ · 404 total
Longest outage
2d 20h
began December 26, 2025
Rank in state
103rd/115
2642nd of 3,000 US

Compared with MO, the US and 2024

Adair County, MO average hours without power per customer compared with state and national averages, 2025Adair County 1.4 hours, Missouri average 8.9 hours, US average 5.9 hours, Adair County, 2024 5.3 hoursAdair CountyAdair County1.4hMissouri averageMissouri average8.9hUS averageUS average5.9hAdair County, 2024Adair 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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Adair County, MO customer-hours without power by month, 2025Jan 402, Feb 1,154, Mar 1,719, Apr 1,976, May 910, Jun 1,747, Jul 3,262, Aug 285, Sep 1,495, Oct 2,581, Nov 1,336, Dec 38701k2k3k4k402Jan1,154Feb1,719Mar1,976Apr910May1,747Jun3,262Jul285Aug1,495Sep2,581Oct1,336Nov387Dec
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Customer-hours; July was the worst month.

Adair County year over year

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Adair County, MO: average hours without power per customer by year2015: 1.0h; 2016: 1.2h; 2017: 0.2h; 2018: 0.8h, coverage 80%; 2019: 1.1h, coverage 95%; 2020: 1.8h, coverage 95%; 2021: 1.5h, coverage 95%; 2022: 1.8h, coverage 95%; 2023: 1.8h; 2024: 5.3h; 2025: 1.4h02460%50%100%1.0h20151.2h20160.2h20170.8h20181.1h20191.8h20201.5h20211.8h20221.8h20235.3h20241.4h2025
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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 Adair County, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 2, 2025 21:15April 3, 2025 00:303h 15m7561,323
2October 20, 2025 11:15October 20, 2025 15:304h 15m6861,433
3July 28, 2025 10:45July 28, 2025 19:308h 45m5221,882
4September 17, 2025 15:15September 17, 2025 17:452h 30m434366
5May 19, 2025 23:15May 20, 2025 17:4518h 30m411369
6November 26, 2025 02:00November 26, 2025 07:005h3941,013
7June 26, 2025 11:30June 26, 2025 12:451h 15m392389
8February 16, 2025 13:30February 16, 2025 19:155h 45m371999
9March 5, 2025 18:00March 5, 2025 21:153h 15m279623
10June 29, 2025 13:45June 29, 2025 19:005h 15m202385

Outage episodes by size in 2025: 19 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 Adair 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
Macon Electric Coop-----
Tri-County Electric Coop Assn (MO)-----
Lewis County Rural E C A-----

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 ÷ 12,158 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. Adair County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Adair 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/adair-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON