massoutage

County annual report · FIPS 16057

2025 Latah County, ID Power Outage Report

In 2025, customers in Latah County, ID went without power for an average of 23.3 hours, a total of 417K customer-hours (Idaho average 5.6 hours). That ranks 10th worst of 43 Idaho counties and 281st of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
23.3
17,870 customers
Customer-hours out
417K
Peak customers out
12,381
Outages ≥1,000 out
8
1 of 10,000+ · 260 total
Longest outage
14d 11h
began December 17, 2025
Rank in state
10th/43
281st of 3,000 US

Compared with ID, the US and 2024

Latah County, ID average hours without power per customer compared with state and national averages, 2025Latah County 23.3 hours, Idaho average 5.6 hours, US average 5.9 hours, Latah County, 2024 8.3 hoursLatah CountyLatah County23.3hIdaho averageIdaho average5.6hUS averageUS average5.9hLatah County, 2024Latah County, 20248.3h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

CSVJSON
Latah County, ID customer-hours without power by month, 2025Jan 12K, Feb 16K, Mar 627, Apr 3,381, May 4,539, Jun 3,110, Jul 992, Aug 13K, Sep 2,733, Oct 9,979, Nov 2,649, Dec 348K0100k200k300k400k12KJan16KFeb627Mar3,381Apr4,539May3,110Jun992Jul13KAug2,733Sep9,979Oct2,649Nov348KDec
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Customer-hours; December was the worst month.

Latah County year over year

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Latah County, ID: average hours without power per customer by year2015: 3.6h; 2016: 2.4h; 2017: 6.5h; 2018: 3.5h, coverage 91%; 2019: 2.1h, coverage 92%; 2020: 4.7h, coverage 95%; 2021: 5.7h, coverage 90%; 2022: 6.7h, coverage 91%; 2023: 2.5h; 2024: 8.3h; 2025: 23.3h01020300%50%100%3.6h20152.4h20166.5h20173.5h20182.1h20194.7h20205.7h20216.7h20222.5h20238.3h202423.3h2025
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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 Idaho customers tracked each year.

Biggest outages in Latah County, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 17, 2025 12:45January 1, 2026 00:0014d 11h12,381345K
2October 1, 2025 21:00October 2, 2025 00:303h 30m2,6326,762
3January 11, 2025 12:45January 14, 2025 20:153d 7h2,62210K
4August 7, 2025 14:15August 7, 2025 19:004h 45m2,34411K
5February 23, 2025 23:15February 24, 2025 11:1512h2,33214K
6August 1, 2025 03:00August 1, 2025 06:003h1,2971,629
7April 20, 2025 23:00April 21, 2025 03:304h 30m1,2721,946
8December 3, 2025 12:45December 3, 2025 13:451h1,0141,014
9April 4, 2025 11:15April 4, 2025 12:451h 30m7091,064
10May 9, 2025 12:15May 9, 2025 15:153h709496

Outage episodes by size in 2025: 36 reached 100+ customers, 8 reached 1,000+ customers, 1 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 Latah 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
Bonneville Power Administration-----
Avista Corp,avista-----

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 ÷ 17,870 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. Latah County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Latah 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/latah-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON