massoutage

County annual report · FIPS 53001

2025 Adams County, WA Power Outage Report

In 2025, customers in Adams County, WA went without power for an average of 1.6 hours, a total of 24K customer-hours (Washington average 7.0 hours). That ranks 30th worst of 33 Washington counties and 2575th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
1.6
14,910 customers
Customer-hours out
24K
Peak customers out
1,300
Outages ≥1,000 out
1
0 of 10,000+ · 250 total
Longest outage
1d 18h
began November 8, 2025
Rank in state
30th/33
2575th of 3,000 US

Compared with WA, the US and 2024

Adams County, WA average hours without power per customer compared with state and national averages, 2025Adams County 1.6 hours, Washington average 7.0 hours, US average 5.9 hours, Adams County, 2024 0.8 hoursAdams CountyAdams County1.6hWashington averageWashington average7.0hUS averageUS average5.9hAdams County, 2024Adams County, 20240.8h
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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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Adams County, WA customer-hours without power by month, 2025Jan 871, Feb 1,556, Mar 2,535, Apr 776, May 1,675, Jun 4,770, Jul 2,179, Aug 871, Sep 2,235, Oct 1,153, Nov 709, Dec 4,49502k4k6k871Jan1,556Feb2,535Mar776Apr1,675May4,770Jun2,179Jul871Aug2,235Sep1,153Oct709Nov4,495Dec
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Customer-hours; June was the worst month.

Adams County year over year

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Adams County, WA: average hours without power per customer by year2015: 1.0h; 2016: 1.5h; 2017: 1.3h; 2018: no data; 2019: 0.8h, coverage 86%; 2020: 2.9h, coverage 87%; 2021: 1.4h, coverage 87%; 2022: 1.3h, coverage 87%; 2023: 1.5h; 2024: 0.8h; 2025: 1.6h01230%50%100%1.0h20151.5h20161.3h2017n/a20180.8h20192.9h20201.4h20211.3h20221.5h20230.8h20241.6h2025
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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 Adams 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
1March 23, 2025 04:15March 23, 2025 10:005h 45m1,3002,291
2February 11, 2025 15:15February 11, 2025 17:152h5261,052
3July 31, 2025 17:15July 31, 2025 19:452h 30m290292
4May 14, 2025 17:30May 14, 2025 21:003h 30m237830
5June 11, 2025 20:15June 12, 2025 06:009h 45m2341,591
6June 11, 2025 04:15June 11, 2025 12:007h 45m2291,775
7June 17, 2025 02:15June 17, 2025 05:453h 30m229531
8December 17, 2025 13:00December 18, 2025 03:1514h 15m2052,892
9June 4, 2025 15:00June 4, 2025 18:003h203452
10October 19, 2025 07:15October 19, 2025 22:1515h200697

Outage episodes by size in 2025: 16 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 Adams 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
Avista Corp20243.1 hrs1.112.3 hrs0.94
Inland Power & Light Company20246.4 hrs1.204.6 hrs1.09
Big Bend Electric Coop, Inc20244.1 hrs0.933.2 hrs0.79
Bonneville Power Administration-----
Avista Corp,avista-----
PUD No 2 of Grant 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 ÷ 14,910 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. Adams County has data for 2015–2017, 2019–2025.

Cite this report

MassOutage (massoutage.com), Adams 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/adams-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON