massoutage

County annual report · FIPS 53031

2018 Jefferson County, WA Power Outage Report

In 2018, customers in Jefferson County, WA went without power for an average of 0.1 hours, a total of 2,744 customer-hours (Washington average 2.1 hours). That ranks 20th worst of 27 Washington counties and 2663rd of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
0.1
27,322 customers
Customer-hours out
2,744
Peak customers out
108
Outages ≥1,000 out
0
0 of 10,000+ · 20 total
Longest outage
21h
began February 18, 2018
Rank in state
20th/27
2663rd of 2,798 US

Compared with WA, the US and 2017

Jefferson County, WA average hours without power per customer compared with state and national averages, 2018Jefferson County 0.1 hours, Washington average 2.1 hours, US average 5.6 hours, Jefferson County, 2017 0.0 hoursJefferson CountyJefferson County0.1hWashington averageWashington average2.1hUS averageUS average5.6hJefferson County, 2017Jefferson County, 20…0.0h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Jefferson County, WA customer-hours without power by month, 2018Jan 33, Feb 158, Mar 3, Apr 0, May 0, Jun 333, Jul 1, Aug 56, Sep 0, Oct 0, Nov 118, Dec 2,04301k2k3k33Jan158Feb3Mar0Apr0May333Jun1Jul56Aug0Sep0Oct118Nov2,043Dec
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Customer-hours; December was the worst month.

Jefferson County year over year

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Jefferson County, WA: average hours without power per customer by year2015: 0.0h; 2016: no data; 2017: 0.0h; 2018: 0.1h, coverage 71%; 2019: 2.5h, coverage 86%; 2020: 7.2h, coverage 87%; 2021: 12.4h, coverage 87%; 2022: 26.7h, coverage 87%; 2023: 5.1h; 2024: 6.8h; 2025: 9.0h01020300%50%100%0.0h2015n/a20160.0h20170.1h20182.5h20197.2h202012.4h202126.7h20225.1h20236.8h20249.0h2025
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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 Jefferson County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 23, 2018 09:00December 24, 2018 02:3017h 30m1081,706
2December 19, 2018 06:15December 19, 2018 17:3011h 15m37311
3June 23, 2018 03:00June 23, 2018 13:4510h 45m36333
4December 20, 2018 18:15December 20, 2018 19:151h288
5November 2, 2018 12:00November 3, 2018 03:0015h18118
6January 27, 2018 16:45January 27, 2018 19:152h 30m1331
7August 30, 2018 17:15August 30, 2018 20:153h1030
8August 31, 2018 04:45August 31, 2018 07:152h 30m820
9February 18, 2018 23:00February 19, 2018 20:0021h7147
10February 12, 2018 17:00February 12, 2018 17:1515m62

Outage episodes by size in 2018: 1 reached 100+ customers, 0 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 Jefferson County reported on EIA Form 861 for 2018, 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 Grays Harbor County20184.7 hrs1.292.3 hrs1.00
PUD No 1 of Jefferson County20186.0 hrs2.025.9 hrs1.19
Bonneville Power Administration-----
PUD No 1 of Clallam County-----
PUD No 1 of Clallam County,clallamcountypud-----
PUD No 1 of Mason County-----
PUD No 1 of Jefferson County,jeffersonpud-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 71% of Washington's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 27,322 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. Jefferson County has data for 2015, 2017–2025.

Cite this report

MassOutage (massoutage.com), Jefferson County, WA annual power outage report, 2018, 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/2018/washington/jefferson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON