massoutage

County annual report · FIPS 19051

2019 Davis County, IA Power Outage Report

In 2019, customers in Davis County, IA went without power for an average of 2.3 hours, a total of 11K customer-hours (Iowa average 2.2 hours). That ranks 50th worst of 99 Iowa counties and 1917th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
2.3
4,718 customers
Customer-hours out
11K
Peak customers out
1,428
Outages ≥1,000 out
1
0 of 10,000+ · 146 total
Longest outage
2d 8h
began April 20, 2019
Rank in state
50th/99
1917th of 2,945 US

Compared with IA, the US and 2018

Davis County, IA average hours without power per customer compared with state and national averages, 2019Davis County 2.3 hours, Iowa average 2.2 hours, US average 4.7 hours, Davis County, 2018 1.2 hoursDavis CountyDavis County2.3hIowa averageIowa average2.2hUS averageUS average4.7hDavis County, 2018Davis County, 20181.2h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

CSVJSON
Davis County, IA customer-hours without power by month, 2019Jan 163, Feb 308, Mar 57, Apr 942, May 1,466, Jun 2,652, Jul 1,101, Aug 1,367, Sep 1,410, Oct 778, Nov 506, Dec 19201k2k3k163Jan308Feb57Mar942Apr1,466May2,652Jun1,101Jul1,367Aug1,410Sep778Oct506Nov192Dec
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Customer-hours; June was the worst month.

Davis County year over year

CSVJSON
Davis County, IA: average hours without power per customer by year2015: 2.0h; 2016: 0.4h; 2017: 2.8h; 2018: 1.2h, coverage 89%; 2019: 2.3h, coverage 89%; 2020: 1.4h, coverage 91%; 2021: 2.0h, coverage 91%; 2022: 0.8h, coverage 91%; 2023: 2.1h; 2024: 2.5h; 2025: 0.8h01230%50%100%2.0h20150.4h20162.8h20171.2h20182.3h20191.4h20202.0h20210.8h20222.1h20232.5h20240.8h2025
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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 Davis County, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 29, 2019 18:15August 29, 2019 19:451h 30m1,428424
2August 20, 2019 12:15August 20, 2019 18:156h241342
3February 20, 2019 09:30February 20, 2019 10:1545m207155
4June 28, 2019 16:30June 29, 2019 03:4511h 15m207746
5June 27, 2019 06:45June 27, 2019 12:456h1791,074
6July 4, 2019 01:45July 4, 2019 05:003h 15m179582
7August 4, 2019 11:45August 4, 2019 12:451h179179
8July 21, 2019 00:30July 21, 2019 06:456h 15m157255
9August 5, 2019 02:00August 5, 2019 08:156h 15m147367
10September 29, 2019 02:00September 30, 2019 00:0022h1361,114

Outage episodes by size in 2019: 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 Davis County reported on EIA Form 861 for 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Chariton Valley Elec Coop, Inc20182.3 hrs1.232.3 hrs1.23
Southern Iowa Elec Coop, Inc20181.9 hrs1.001.9 hrs1.00
Interstate Power and Light Co-----
Access Energy Coop-----
City of Bloomfield - (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 89% of Iowa's customers in 2019; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 4,718 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. Davis County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Davis County, IA annual power outage report, 2019, 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/2019/iowa/davis-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON