massoutage

County annual report · FIPS 53003

2025 Asotin County, WA Power Outage Report

In 2025, customers in Asotin County, WA went without power for an average of 5.3 hours, a total of 111K customer-hours (Washington average 7.0 hours). That ranks 21st worst of 33 Washington counties and 1424th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
5.3
20,797 customers
Customer-hours out
111K
Peak customers out
2,210
Outages ≥1,000 out
6
0 of 10,000+ · 197 total
Longest outage
12d 9h
began December 17, 2025
Rank in state
21st/33
1424th of 3,000 US

Compared with WA, the US and 2024

Asotin County, WA average hours without power per customer compared with state and national averages, 2025Asotin County 5.3 hours, Washington average 7.0 hours, US average 5.9 hours, Asotin County, 2024 2.6 hoursAsotin CountyAsotin County5.3hWashington averageWashington average7.0hUS averageUS average5.9hAsotin County, 2024Asotin County, 20242.6h
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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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Asotin County, WA customer-hours without power by month, 2025Jan 3,478, Feb 10K, Mar 614, Apr 2,491, May 16K, Jun 9,669, Jul 2,723, Aug 445, Sep 4,655, Oct 805, Nov 176, Dec 59K020k40k60k3,478Jan10KFeb614Mar2,491Apr16KMay9,669Jun2,723Jul445Aug4,655Sep805Oct176Nov59KDec
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Customer-hours; December was the worst month.

Asotin County year over year

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Asotin County, WA: average hours without power per customer by year2015: 0.2h; 2016: 0.6h; 2017: 1.7h; 2018: 1.4h, coverage 71%; 2019: 1.1h, coverage 86%; 2020: 1.2h, coverage 87%; 2021: 1.8h, coverage 87%; 2022: 2.2h, coverage 87%; 2023: 1.2h; 2024: 2.6h; 2025: 5.3h02460%50%100%0.2h20150.6h20161.7h20171.4h20181.1h20191.2h20201.8h20212.2h20221.2h20232.6h20245.3h2025
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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 Washington customers tracked each year.

Biggest outages in Asotin 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
1April 30, 2025 11:00April 30, 2025 18:157h 15m2,2102,275
2December 17, 2025 13:15December 29, 2025 22:3012d 9h1,97155K
3May 2, 2025 17:00May 2, 2025 19:452h 45m1,6141,609
4February 4, 2025 21:15February 5, 2025 05:308h 15m1,5955,518
5September 20, 2025 16:15September 20, 2025 17:451h 30m1,5781,581
6September 9, 2025 01:15September 9, 2025 04:303h 15m1,338447
7January 16, 2025 23:45January 17, 2025 07:307h 45m9352,341
8December 14, 2025 15:00December 14, 2025 18:303h 30m9082,744
9May 10, 2025 14:15May 11, 2025 01:3011h 15m8909,769
10February 5, 2025 08:00February 5, 2025 19:3011h 30m8613,412

Outage episodes by size in 2025: 21 reached 100+ customers, 6 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 Asotin County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Avista Corp20243.1 hrs1.112.3 hrs0.94
Inland Power & Light Company20246.4 hrs1.204.6 hrs1.09
Clearwater Power Company201816.6 hrs3.1612.0 hrs2.91
Avista Corp,avista-----
PUD No 1 of Asotin County-----

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 Washington's customers in 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 20,797 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. Asotin County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Asotin County, WA 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/washington/asotin-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON