massoutage

County annual report · FIPS 16087

2025 Washington County, ID Power Outage Report

In 2025, customers in Washington County, ID went without power for an average of 4.5 hours, a total of 13K customer-hours (Idaho average 5.6 hours). That ranks 28th worst of 43 Idaho counties and 1639th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
4.5
2,900 customers
Customer-hours out
13K
Peak customers out
2,516
Outages ≥1,000 out
1
0 of 10,000+ · 38 total
Longest outage
8h 45m
began August 1, 2025
Rank in state
28th/43
1639th of 3,000 US

Compared with ID, the US and 2024

Washington County, ID average hours without power per customer compared with state and national averages, 2025Washington County 4.5 hours, Idaho average 5.6 hours, US average 5.9 hours, Washington County, 2024 4.5 hoursWashington CountyWashington County4.5hIdaho averageIdaho average5.6hUS averageUS average5.9hWashington County, 2024Washington County, 2…4.5h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

CSVJSON
Washington County, ID customer-hours without power by month, 2025Jan 629, Feb 30, Mar 421, Apr 517, May 2,081, Jun 667, Jul 1,221, Aug 6,557, Sep 0, Oct 792, Nov 34, Dec 5002k4k6k8k629Jan30Feb421Mar517Apr2,081May667Jun1,221Jul6,557Aug0Sep792Oct34Nov50Dec
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Customer-hours; August was the worst month.

Washington County year over year

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Washington County, ID: average hours without power per customer by year2015: 0.7h; 2016: 0.4h; 2017: 3.6h; 2018: 2.6h, coverage 91%; 2019: 2.8h, coverage 92%; 2020: 4.3h, coverage 95%; 2021: 3.7h, coverage 90%; 2022: 4.1h, coverage 91%; 2023: 6.2h; 2024: 4.5h; 2025: 4.5h024680%50%100%0.7h20150.4h20163.6h20172.6h20182.8h20194.3h20203.7h20214.1h20226.2h20234.5h20244.5h2025
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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 Washington County, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 9, 2025 17:45January 9, 2025 18:0015m2,516629
2August 1, 2025 04:15August 1, 2025 13:008h 45m9054,927
3May 1, 2025 21:30May 2, 2025 00:453h 15m5341,736
4July 27, 2025 02:30July 27, 2025 06:003h 30m353556
5July 4, 2025 20:30July 4, 2025 21:0030m27881
6July 17, 2025 21:30July 17, 2025 21:4515m27368
7April 30, 2025 21:30April 30, 2025 22:301h272214
8August 15, 2025 06:15August 15, 2025 08:452h 30m268670
9May 5, 2025 13:30May 5, 2025 16:002h 30m203228
10August 27, 2025 10:30August 27, 2025 12:302h199398

Outage episodes by size in 2025: 14 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 Washington 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
Idaho Power Co20246.0 hrs1.975.0 hrs1.84
City of Weiser - (ID)-----

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 ÷ 2,900 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. Washington County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Washington 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/washington-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON