massoutage

County annual report · FIPS 53041

2023 Lewis County, WA Power Outage Report

In 2023, customers in Lewis County, WA went without power for an average of 3.4 hours, a total of 184K customer-hours (Washington average 2.6 hours). That ranks 13th worst of 33 Washington counties and 1830th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
3.4
53,919 customers
Customer-hours out
184K
Peak customers out
11,418
Outages ≥1,000 out
17
1 of 10,000+ · 452 total
Longest outage
1d 6h
began August 21, 2023
Rank in state
13th/33
1830th of 2,977 US

Compared with WA, the US and 2022

Lewis County, WA average hours without power per customer compared with state and national averages, 2023Lewis County 3.4 hours, Washington average 2.6 hours, US average 7.1 hours, Lewis County, 2022 6.4 hoursLewis CountyLewis County3.4hWashington averageWashington average2.6hUS averageUS average7.1hLewis County, 2022Lewis County, 20226.4h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Lewis County, WA customer-hours without power by month, 2023Jan 32K, Feb 38K, Mar 13K, Apr 2,255, May 21K, Jun 7,350, Jul 2,008, Aug 3,402, Sep 14K, Oct 14K, Nov 7,090, Dec 31K010k20k30k40k32KJan38KFeb13KMar2,255Apr21KMay7,350Jun2,008Jul3,402Aug14KSep14KOct7,090Nov31KDec
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Customer-hours; February was the worst month.

Lewis County year over year

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Lewis County, WA: average hours without power per customer by year2015: 0.0h; 2016: no data; 2017: 0.0h; 2018: 0.0h, coverage 71%; 2019: 3.0h, coverage 86%; 2020: 4.1h, coverage 87%; 2021: 7.3h, coverage 87%; 2022: 6.4h, coverage 87%; 2023: 3.4h; 2024: 7.3h; 2025: 7.1h024680%50%100%0.0h2015n/a20160.0h20170.0h20183.0h20194.1h20207.3h20216.4h20223.4h20237.3h20247.1h2025
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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 Lewis County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 15, 2023 23:00May 16, 2023 13:3014h 30m11,41811K
2February 22, 2023 16:45February 23, 2023 01:308h 45m7,61315K
3February 21, 2023 05:45February 22, 2023 07:001d 1h4,55616K
4December 24, 2023 11:00December 24, 2023 22:1511h 15m4,0796,380
5May 10, 2023 15:30May 10, 2023 20:455h 15m3,7756,636
6October 1, 2023 18:30October 2, 2023 03:459h 15m3,50811K
7January 4, 2023 21:15January 6, 2023 02:001d 4h2,47920K
8January 9, 2023 14:45January 10, 2023 00:159h 30m2,4655,785
9September 27, 2023 10:45September 27, 2023 22:4512h2,1976,885
10March 10, 2023 04:15March 10, 2023 12:458h 30m1,9746,897

Outage episodes by size in 2023: 77 reached 100+ customers, 17 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 Lewis County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
PUD No 1 of Lewis County20237.4 hrs3.047.1 hrs2.94
PUD No 1 of Grays Harbor County20234.3 hrs1.104.3 hrs1.10
City of Tacoma - (WA)202355 min0.6055 min0.60
City of Centralia - (WA)20233.5 hrs1.6857 min0.46
Bonneville Power Administration-----
Benton Rural Electric Assn-----

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 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 53,919 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, 2017–2025.

Cite this report

MassOutage (massoutage.com), Lewis County, WA annual power outage report, 2023, 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/2023/washington/lewis-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON