massoutage

County annual report · FIPS 29001

2018 Adair County, MO Power Outage Report

In 2018, customers in Adair County, MO went without power for an average of 0.8 hours, a total of 9,329 customer-hours (Missouri average 1.7 hours). That ranks 63rd worst of 96 Missouri counties and 2401st of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
0.8
12,158 customers
Customer-hours out
9,329
Peak customers out
1,675
Outages ≥1,000 out
2
0 of 10,000+ · 255 total
Longest outage
9h 15m
began September 20, 2018
Rank in state
63rd/96
2401st of 2,798 US

Compared with MO, the US and 2017

Adair County, MO average hours without power per customer compared with state and national averages, 2018Adair County 0.8 hours, Missouri average 1.7 hours, US average 5.6 hours, Adair County, 2017 0.2 hoursAdair CountyAdair County0.8hMissouri averageMissouri average1.7hUS averageUS average5.6hAdair County, 2017Adair County, 20170.2h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

CSVJSON
Adair County, MO customer-hours without power by month, 2018Jan 135, Feb 531, Mar 4,320, Apr 363, May 1,083, Jun 846, Jul 295, Aug 817, Sep 373, Oct 60, Nov 372, Dec 13502k4k6k135Jan531Feb4,320Mar363Apr1,083May846Jun295Jul817Aug373Sep60Oct372Nov135Dec
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Customer-hours; March 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, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 12, 2018 22:30March 13, 2018 01:152h 45m1,6753,810
2May 16, 2018 09:30May 16, 2018 10:1545m1,356641
3July 19, 2018 14:15July 19, 2018 15:0045m594149
4August 15, 2018 15:00August 15, 2018 15:4545m348261
5February 19, 2018 21:45February 20, 2018 00:302h 45m317480
6June 20, 2018 20:00June 20, 2018 21:001h310233
7November 27, 2018 13:45November 27, 2018 16:302h 45m31081
8March 3, 2018 16:45March 3, 2018 17:1530m307154
9June 11, 2018 21:00June 11, 2018 22:151h 15m219224
10May 20, 2018 04:30May 20, 2018 08:304h173262

Outage episodes by size in 2018: 12 reached 100+ customers, 2 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 2018, 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)20182.3 hrs0.8586 min0.72
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 80% of Missouri's customers in 2018; 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, 2018, 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/2018/missouri/adair-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON