massoutage

County annual report · FIPS 19133

2020 Monona County, IA Power Outage Report

In 2020, customers in Monona County, IA went without power for an average of 0.8 hours, a total of 5,557 customer-hours (Iowa average 27.4 hours). That ranks 90th worst of 99 Iowa counties and 2750th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
0.8
7,388 customers
Customer-hours out
5,557
Peak customers out
400
Outages ≥1,000 out
0
0 of 10,000+ · 58 total
Longest outage
13h 45m
began November 10, 2020
Rank in state
90th/99
2750th of 3,019 US

Compared with IA, the US and 2019

Monona County, IA average hours without power per customer compared with state and national averages, 2020Monona County 0.8 hours, Iowa average 27.4 hours, US average 8.7 hours, Monona County, 2019 0.9 hoursMonona CountyMonona County0.8hIowa averageIowa average27.4hUS averageUS average8.7hMonona County, 2019Monona County, 20190.9h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Monona County, IA customer-hours without power by month, 2020Jan 22, Feb 125, Mar 15, Apr 338, May 886, Jun 1,173, Jul 663, Aug 373, Sep 0, Oct 7, Nov 1,948, Dec 805001k1.5k2k22Jan125Feb15Mar338Apr886May1,173Jun663Jul373Aug0Sep7Oct1,948Nov8Dec
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Customer-hours; November 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, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 15, 2020 18:15June 15, 2020 18:3015m400100
2November 15, 2020 04:45November 15, 2020 08:003h 15m4001,200
3November 9, 2020 21:45November 9, 2020 22:451h399201
4June 10, 2020 04:30June 10, 2020 10:306h380991
5May 5, 2020 04:00May 5, 2020 06:302h 30m353881
6April 28, 2020 23:30April 29, 2020 01:151h 45m186290
7July 28, 2020 15:30July 28, 2020 19:003h 30m186651
8August 4, 2020 15:30August 4, 2020 15:4515m18546
9November 10, 2020 09:15November 10, 2020 23:0013h 45m184529
10February 20, 2020 19:00February 20, 2020 20:451h 45m4172

Outage episodes by size in 2020: 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 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
MidAmerican Energy Co202018.3 hrs1.4382 min0.79
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 91% of Iowa's customers in 2020; 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, 2020, 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/2020/iowa/monona-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON