massoutage

2020 Washington Power Outage Report

In 2020, the average Washington customer went without power for about 4.2 hours, the 32nd worst of 51 states (US average 8.0 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
4.2
vs prior year
▲ 105%
vs 2019
Customer-hours out
14.7M
Peak customers out
139,451
across the state at once
EAGLE-I coverage
87%
of WA customers
Counties reporting
37

Washington year over year

Washington: average hours without power per customer by year2015: 9.1h; 2016: 3.2h; 2017: 3.3h; 2018: 2.1h, coverage 71%; 2019: 2.0h, coverage 86%; 2020: 4.2h, coverage 87%; 2021: 8.7h, coverage 87%; 2022: 6.6h, coverage 87%; 2023: 2.6h; 2024: 12.1h; 2025: 7.0h0510150%50%100%9.1h20153.2h20163.3h20172.1h20182.0h20194.2h20208.7h20216.6h20222.6h202312.1h20247.0h2025
Use the arrow keys to read values.
Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Month by month, 2020

Customer-hours without power across Washington; September was the worst.

CSVJSON
Washington customer-hours without power by month, 2020Jan 1.9M, Feb 1.7M, Mar 421K, Apr 279K, May 844K, Jun 590K, Jul 453K, Aug 506K, Sep 3.9M, Oct 2.0M, Nov 1.4M, Dec 763K01M2M3M4M1.9MJan1.7MFeb421KMar279KApr844KMay590KJun453KJul506KAug3.9MSep2.0MOct1.4MNov763KDec
Use the arrow keys to read values.

All 37 Washington counties, 2020

Ranked by average hours without power per customer. Each county links to its annual report.

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1Ferry County34.8202K5,8072,608446
2Garfield County25.725K968968443
3Lincoln County22.5142K6,3072,059526
4Pend Oreille County21.0196K9,3462,932634
5Stevens County16.1494K30,6716,478731
6Whatcom County12.0683K56,74715,079608
7Pierce County11.52.2M190,28252,571546
8Columbia County11.122K1,9601,960294
9Island County10.1882K87,19648,356530
10Kitsap County8.61.1M126,24226,888539
11Kittitas County8.4177K21,0558,930371
12Jefferson County7.2196K27,3224,423216
13Skagit County6.9428K62,2165,839565
14Mason County6.1227K37,5296,681634
15Douglas County5.993K15,7541,286324
16San Juan County5.179K15,5694,858276
17Yakima County4.1499K120,50113,560763
18Lewis County4.1221K53,9195,206464
19Thurston County3.9547K141,0178,080585
20Spokane County3.8834K217,35117,096661
21King County3.53.4M963,74449,53556
22Whitman County2.9139K47,4092,580632
23Adams County2.943K14,9101,462416
24Okanogan County2.870K24,93795983
25Clallam County2.295K43,7262,227162
26Walla Walla County2.265K30,0504,594547
27Snohomish County1.91.2M638,02923,234882
28Clark County1.4296K210,59515,7891,100
29Benton County1.4111K80,3515,530550
30Asotin County1.225K20,797984408
31Grant County1.259K50,6671,307421
32Franklin County1.135K32,7341,403303
33Klickitat County0.45,20412,711459130
34Chelan County0.421K50,4561,254266
35Skamania County0.18836,10113084
36Cowlitz County0.13,68450,75156520
37Wahkiakum County-44-53

Biggest Washington outages of 2020

Up to 25 county outage episodes with the most customers out at once.

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Pierce County, WASeptember 7, 2020 17:15September 12, 2020 04:004d 10h52,5711.2M
2King County, WAOctober 6, 2020 13:15October 20, 2020 23:0014d 9h49,535574K
3Island County, WANovember 12, 2020 17:30November 18, 2020 06:005d 12h48,356504K
4King County, WASeptember 1, 2020 14:30September 21, 2020 03:4519d 13h32,631539K
5King County, WAFebruary 10, 2020 02:45April 7, 2020 01:3056d 22h30,875280K
6Kitsap County, WAOctober 11, 2020 18:00October 20, 2020 03:008d 9h26,888216K
7Pierce County, WAOctober 11, 2020 13:45October 17, 2020 23:006d 9h26,469190K
8Island County, WAJanuary 31, 2020 19:30February 3, 2020 02:302d 7h24,013221K
9Snohomish County, WAJanuary 31, 2020 14:45February 3, 2020 08:002d 17h23,234202K
10Kitsap County, WAJanuary 10, 2020 19:00January 17, 2020 06:456d 11h18,196190K
11Pierce County, WADecember 9, 2020 15:30December 18, 2020 01:308d 10h17,84429K
12King County, WAApril 17, 2020 15:30May 11, 2020 11:1523d 19h17,475111K
13Spokane County, WAOctober 23, 2020 12:15October 26, 2020 12:153d17,096188K
14Snohomish County, WAAugust 31, 2020 14:30September 1, 2020 13:0022h 30m16,80820K
15King County, WAJuly 27, 2020 13:00July 30, 2020 11:152d 22h16,69934K
16Clark County, WASeptember 7, 2020 20:15September 11, 2020 01:153d 5h15,789195K
17King County, WAFebruary 6, 2020 11:45February 10, 2020 02:003d 14h15,527113K
18Pierce County, WAFebruary 8, 2020 02:30February 12, 2020 01:003d 22h15,13498K
19Spokane County, WASeptember 7, 2020 15:00September 15, 2020 22:158d 7h15,095321K
20Whatcom County, WAOctober 13, 2020 13:15October 21, 2020 09:007d 19h15,079128K
21Snohomish County, WAOctober 13, 2020 12:00October 15, 2020 02:001d 14h13,60797K
22Yakima County, WAMay 30, 2020 22:45June 3, 2020 10:303d 11h13,560252K
23King County, WAJanuary 9, 2020 14:45January 20, 2020 09:1510d 18h13,450271K
24Snohomish County, WAJanuary 12, 2020 15:30January 18, 2020 11:155d 19h13,033352K
25King County, WADecember 26, 2020 14:15December 31, 2020 00:154d 10h12,75826K
EAGLE-I tracked about 87% of Washington's electricity customers in 2020; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
Washington by year:2025202420232022202120192018201720162015
Other states in 2020:LAMEOKIAALMSNJNC

Part of the 2020 US Power Outage Report.

Data from DOE EAGLE-I, every source we read.