massoutage

County annual report · FIPS 39109

2025 Miami County, OH Power Outage Report

In 2025, customers in Miami County, OH went without power for an average of 2.9 hours, a total of 125K customer-hours (Ohio average 4.0 hours). That ranks 60th worst of 88 Ohio counties and 2106th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
2.9
43,362 customers
Customer-hours out
125K
Peak customers out
5,726
Outages ≥1,000 out
12
0 of 10,000+ · 627 total
Longest outage
4d 5h
began August 13, 2025
Rank in state
60th/88
2106th of 3,000 US

Compared with OH, the US and 2024

Miami County, OH average hours without power per customer compared with state and national averages, 2025Miami County 2.9 hours, Ohio average 4.0 hours, US average 5.9 hours, Miami County, 2024 2.1 hoursMiami CountyMiami County2.9hOhio averageOhio average4.0hUS averageUS average5.9hMiami County, 2024Miami County, 20242.1h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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Miami County, OH customer-hours without power by month, 2025Jan 19K, Feb 338, Mar 7,769, Apr 5,586, May 6,700, Jun 39K, Jul 16K, Aug 4,313, Sep 5,761, Oct 10K, Nov 4,533, Dec 5,464010k20k30k40k19KJan338Feb7,769Mar5,586Apr6,700May39KJun16KJul4,313Aug5,761Sep10KOct4,533Nov5,464Dec
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Customer-hours; June was the worst month.

Miami County year over year

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Miami County, OH: average hours without power per customer by year2015: 1.5h; 2016: 1.7h; 2017: 1.8h; 2018: 1.7h, coverage 93%; 2019: 5.0h, coverage 93%; 2020: 2.6h, coverage 93%; 2021: 3.3h, coverage 93%; 2022: 3.3h, coverage 93%; 2023: 1.9h; 2024: 2.1h; 2025: 2.9h02460%50%100%1.5h20151.7h20161.8h20171.7h20185.0h20192.6h20203.3h20213.3h20221.9h20232.1h20242.9h2025
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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 Ohio customers tracked each year.

Biggest outages in Miami County, 2025

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
1January 21, 2025 23:30January 22, 2025 10:0010h 30m5,72617K
2June 22, 2025 19:30June 23, 2025 11:3016h4,9016,542
3June 18, 2025 20:00June 21, 2025 06:152d 10h2,12926K
4October 7, 2025 12:15October 8, 2025 03:0014h 45m1,7071,743
5September 21, 2025 19:00September 22, 2025 16:4521h 45m1,6542,456
6March 15, 2025 09:45March 16, 2025 02:1516h 30m1,2763,725
7October 8, 2025 18:00October 9, 2025 06:4512h 45m1,2251,879
8April 29, 2025 17:45April 30, 2025 15:3021h 45m1,2242,114
9December 28, 2025 20:15December 28, 2025 21:0045m1,194600
10March 13, 2025 19:00March 13, 2025 19:3030m1,172300

Outage episodes by size in 2025: 74 reached 100+ customers, 12 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 Miami County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Ohio Edison Co20243.9 hrs1.281.9 hrs1.03
Dayton Power & Light Co20248.4 hrs1.261.8 hrs0.87
Pioneer Rural Elec Coop, Inc - (OH)20242.1 hrs1.251.6 hrs1.05
City of Piqua - (OH)202426 min0.9326 min0.93
City of Tipp City - (OH)201826 min0.30--

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 Ohio's customers in 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 43,362 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. Miami County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Miami County, OH annual power outage report, 2025, 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/2025/ohio/miami-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON