massoutage

County annual report · FIPS 19133

2024 Monona County, IA Power Outage Report

In 2024, customers in Monona County, IA went without power for an average of 3.4 hours, a total of 25K customer-hours (Iowa average 3.2 hours). That ranks 42nd worst of 99 Iowa counties and 1984th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
3.4
7,388 customers
Customer-hours out
25K
Peak customers out
644
Outages ≥1,000 out
0
0 of 10,000+ · 136 total
Longest outage
24d 3h
began June 24, 2024
Rank in state
42nd/99
1984th of 2,990 US

Compared with IA, the US and 2023

Monona County, IA average hours without power per customer compared with state and national averages, 2024Monona County 3.4 hours, Iowa average 3.2 hours, US average 12.6 hours, Monona County, 2023 1.3 hoursMonona CountyMonona County3.4hIowa averageIowa average3.2hUS averageUS average12.6hMonona County, 2023Monona County, 20231.3h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Monona County, IA customer-hours without power by month, 2024Jan 2,405, Feb 1, Mar 103, Apr 582, May 1,941, Jun 7,939, Jul 11K, Aug 963, Sep 84, Oct 360, Nov 290, Dec 3205k10k15k2,405Jan1Feb103Mar582Apr1,941May7,939Jun11KJul963Aug84Sep360Oct290Nov32Dec
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Customer-hours; July was the worst month.

Monona County year over year

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Monona County, IA: average hours without power per customer by year2015: 0.1h; 2016: 1.2h; 2017: 0.3h; 2018: 0.4h, coverage 89%; 2019: 0.9h, coverage 89%; 2020: 0.8h, coverage 91%; 2021: 1.4h, coverage 91%; 2022: 2.6h, coverage 91%; 2023: 1.3h; 2024: 3.4h; 2025: 12.1h0510150%50%100%0.1h20151.2h20160.3h20170.4h20180.9h20190.8h20201.4h20212.6h20221.3h20233.4h202412.1h2025
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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 Iowa customers tracked each year.

Biggest outages in Monona County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 25, 2024 22:00May 25, 2024 23:001h644617
2January 13, 2024 03:00January 13, 2024 09:456h 45m4112,386
3May 24, 2024 09:15May 24, 2024 16:006h 45m3501,154
4August 14, 2024 04:30August 14, 2024 07:453h 15m261848
5April 26, 2024 22:30April 27, 2024 05:457h 15m185405
6October 16, 2024 08:15October 16, 2024 10:152h177233
7April 16, 2024 19:00April 16, 2024 19:4545m173130
8November 10, 2024 09:30November 10, 2024 11:001h 30m168213
9June 24, 2024 11:45July 18, 2024 14:4524d 3h12918K
10July 30, 2024 05:30July 30, 2024 07:151h 45m6568

Outage episodes by size in 2024: 9 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 Monona County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
MidAmerican Energy Co20245.5 hrs1.421.7 hrs0.94
Western Iowa Power Coop201847 min0.7647 min0.76
WAPA-- Western Area Power Administration-----
Harrison County Rrl Elec Coop-----
Woodbury County Rural E C A-----
City of Mapleton- (IA)-----
City of Onawa - (IA)-----

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 Iowa's customers in 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 7,388 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. Monona County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Monona County, IA annual power outage report, 2024, 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/2024/iowa/monona-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON