massoutage

County annual report · FIPS 16061

2025 Lewis County, ID Power Outage Report

In 2025, customers in Lewis County, ID went without power for an average of 16.2 hours, a total of 29K customer-hours (Idaho average 5.6 hours). That ranks 12th worst of 43 Idaho counties and 457th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
16.2
1,808 customers
Customer-hours out
29K
Peak customers out
1,076
Outages ≥1,000 out
2
0 of 10,000+ · 103 total
Longest outage
5d 15h
began December 17, 2025
Rank in state
12th/43
457th of 3,000 US

Compared with ID, the US and 2024

Lewis County, ID average hours without power per customer compared with state and national averages, 2025Lewis County 16.2 hours, Idaho average 5.6 hours, US average 5.9 hours, Lewis County, 2024 4.7 hoursLewis CountyLewis County16.2hIdaho averageIdaho average5.6hUS averageUS average5.9hLewis County, 2024Lewis County, 20244.7h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

CSVJSON
Lewis County, ID customer-hours without power by month, 2025Jan 51, Feb 1,189, Mar 27, Apr 748, May 429, Jun 547, Jul 566, Aug 183, Sep 2,368, Oct 397, Nov 1,173, Dec 22K010k20k30k51Jan1,189Feb27Mar748Apr429May547Jun566Jul183Aug2,368Sep397Oct1,173Nov22KDec
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Customer-hours; December was the worst month.

Lewis County year over year

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Lewis County, ID: average hours without power per customer by year2015: 59.9h; 2016: 5.0h; 2017: 21.2h; 2018: 6.4h, coverage 91%; 2019: 9.7h, coverage 92%; 2020: 6.8h, coverage 95%; 2021: 3.0h, coverage 90%; 2022: 4.2h, coverage 91%; 2023: 3.9h; 2024: 4.7h; 2025: 16.2h02040600%50%100%59.9h20155.0h201621.2h20176.4h20189.7h20196.8h20203.0h20214.2h20223.9h20234.7h202416.2h2025
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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 Idaho customers tracked each year.

Biggest outages in Lewis County, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1February 5, 2025 05:30February 5, 2025 15:3010h1,076714
2November 29, 2025 20:15November 29, 2025 21:451h 30m1,0101,173
3December 17, 2025 13:15December 23, 2025 05:005d 15h89721K
4September 8, 2025 06:30September 8, 2025 16:009h 30m7842,012
5July 7, 2025 15:15July 7, 2025 22:457h 30m313185
6February 12, 2025 16:30February 12, 2025 19:303h275436
7October 22, 2025 17:00October 22, 2025 18:451h 45m207362
8April 23, 2025 15:00April 23, 2025 17:302h 30m110247
9May 3, 2025 21:00May 4, 2025 02:155h 15m56294
10June 16, 2025 15:45June 16, 2025 20:154h 30m37158

Outage episodes by size in 2025: 8 reached 100+ customers, 2 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 Lewis 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
Clearwater Power Company201816.6 hrs3.1612.0 hrs2.91
Idaho County L&P Coop Assn, Inc-----

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 Idaho's customers in 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 1,808 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. Lewis County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Lewis County, ID 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/idaho/lewis-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON