massoutage

County annual report · FIPS 19187

2023 Webster County, IA Power Outage Report

In 2023, customers in Webster County, IA went without power for an average of 0.7 hours, a total of 14K customer-hours (Iowa average 2.0 hours). That ranks 90th worst of 99 Iowa counties and 2765th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
0.7
20,411 customers
Customer-hours out
14K
Peak customers out
933
Outages ≥1,000 out
0
0 of 10,000+ · 442 total
Longest outage
1d 20h
began September 23, 2023
Rank in state
90th/99
2765th of 2,977 US

Compared with IA, the US and 2022

Webster County, IA average hours without power per customer compared with state and national averages, 2023Webster County 0.7 hours, Iowa average 2.0 hours, US average 7.1 hours, Webster County, 2022 1.1 hoursWebster CountyWebster County0.7hIowa averageIowa average2.0hUS averageUS average7.1hWebster County, 2022Webster County, 20221.1h
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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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Webster County, IA customer-hours without power by month, 2023Jan 1,237, Feb 120, Mar 572, Apr 445, May 944, Jun 2,193, Jul 950, Aug 1,805, Sep 1,458, Oct 2,382, Nov 2,037, Dec 33101k2k3k1,237Jan120Feb572Mar445Apr944May2,193Jun950Jul1,805Aug1,458Sep2,382Oct2,037Nov331Dec
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Customer-hours; October was the worst month.

Webster County year over year

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Webster County, IA: average hours without power per customer by year2015: 0.3h; 2016: 6.7h; 2017: 9.2h; 2018: 1.4h, coverage 89%; 2019: 0.8h, coverage 89%; 2020: 2.0h, coverage 91%; 2021: 5.6h, coverage 91%; 2022: 1.1h, coverage 91%; 2023: 0.7h; 2024: 2.0h; 2025: 7.2h02.557.5100%50%100%0.3h20156.7h20169.2h20171.4h20180.8h20192.0h20205.6h20211.1h20220.7h20232.0h20247.2h2025
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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 Webster County, 2023

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 22, 2023 03:15August 22, 2023 07:154h9331,083
2November 1, 2023 18:00November 2, 2023 02:308h 30m489765
3September 20, 2023 11:30September 20, 2023 19:157h 45m440997
4October 13, 2023 04:30October 13, 2023 16:0011h 30m4051,219
5March 23, 2023 12:30March 23, 2023 17:154h 45m315241
6June 17, 2023 21:15June 18, 2023 02:155h2391,069
7July 6, 2023 13:30July 6, 2023 13:4515m23759
8October 2, 2023 01:45October 2, 2023 05:003h 15m209338
9June 10, 2023 13:15June 10, 2023 14:301h 15m177157
10May 24, 2023 07:30May 24, 2023 09:001h 30m15876

Outage episodes by size in 2023: 16 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 Webster County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

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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 ÷ 20,411 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. Webster County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Webster 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/webster-county

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