massoutage

County annual report · FIPS 19191

2023 Winneshiek County, IA Power Outage Report

In 2023, customers in Winneshiek County, IA went without power for an average of 0.9 hours, a total of 8,053 customer-hours (Iowa average 2.0 hours). That ranks 83rd worst of 99 Iowa counties and 2719th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
0.9
9,369 customers
Customer-hours out
8,053
Peak customers out
1,328
Outages ≥1,000 out
1
0 of 10,000+ · 499 total
Longest outage
1d 8h
began September 4, 2023
Rank in state
83rd/99
2719th of 2,977 US

Compared with IA, the US and 2022

Winneshiek County, IA average hours without power per customer compared with state and national averages, 2023Winneshiek County 0.9 hours, Iowa average 2.0 hours, US average 7.1 hours, Winneshiek County, 2022 5.7 hoursWinneshiek CountyWinneshiek County0.9hIowa averageIowa average2.0hUS averageUS average7.1hWinneshiek County, 2022Winneshiek County, 2…5.7h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Winneshiek County, IA customer-hours without power by month, 2023Jan 420, Feb 287, Mar 821, Apr 1,561, May 671, Jun 1,105, Jul 771, Aug 566, Sep 1,017, Oct 430, Nov 236, Dec 17005001k1.5k2k420Jan287Feb821Mar1,561Apr671May1,105Jun771Jul566Aug1,017Sep430Oct236Nov170Dec
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Customer-hours; April was the worst month.

Winneshiek County year over year

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Winneshiek County, IA: average hours without power per customer by year2015: 0.9h; 2016: 2.1h; 2017: 8.4h; 2018: 2.4h, coverage 89%; 2019: 2.1h, coverage 89%; 2020: 1.7h, coverage 91%; 2021: 11.5h, coverage 91%; 2022: 5.7h, coverage 91%; 2023: 0.9h; 2024: 2.2h; 2025: 1.9h0510150%50%100%0.9h20152.1h20168.4h20172.4h20182.1h20191.7h202011.5h20215.7h20220.9h20232.2h20241.9h2025
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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 Winneshiek County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 6, 2023 15:30April 6, 2023 18:002h 30m1,328337
2June 7, 2023 13:15June 7, 2023 13:4530m872436
3June 29, 2023 13:30June 29, 2023 14:1545m872218
4April 5, 2023 01:15April 5, 2023 02:301h 15m550688
5September 18, 2023 20:45September 18, 2023 22:151h 30m482722
6May 3, 2023 17:30May 3, 2023 19:151h 45m220189
7January 23, 2023 15:00January 23, 2023 16:151h 15m169211
8March 17, 2023 02:30March 17, 2023 04:452h 15m161122
9August 31, 2023 05:00August 31, 2023 06:451h 45m147257
10August 31, 2023 19:30August 31, 2023 20:0030m14774

Outage episodes by size in 2023: 10 reached 100+ customers, 1 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 Winneshiek County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
MiEnergy Cooperative202358 min0.6652 min0.61
Allamakee-Clayton El Coop, Inc20181.5 hrs0.731.5 hrs0.73
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----

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 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 9,369 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. Winneshiek County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Winneshiek County, IA annual power outage report, 2023, 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/2023/iowa/winneshiek-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON