Whatcom County power outages

Washington outage history from 2015 to 2023, with the largest outages and a backup battery estimate.

Whatcom County, Washington had 40 major outages from 2015 to 2023

Above middle outage time among US counties

Residents here averaged 1.24 times the US outage time per person and 1.54 times the Washington rate. It ranks 11 of 34 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

4.4major outages per year
9 of 9years with a major outage
114 hrslongest major outage
Aug, Dechardest months

August and December made up 40% of this county's outage time. The largest outage on record began Aug 29, 2015, reached 54,372 customers, and left at least 200 customers out for 114.0 hours.

Outage time per resident, rated Washington counties
MostLeast

Outage impact by year

Customer-hours without power. 1,000 customers out for 2 hours is 2,000 customer-hours.

0
0.5M
1M
1.5M
2M
2015'152016'162017'172018'182019'192020'202021'212022'222023'23
Show yearly numbers
YearCustomer-hoursReported outagesMajor outages
20151,844,854613
2016648,044884
2017854,7641007
2018297,8471004
2019282,361941
2020600,8691197
20211,146,5701137
2022497,7861065
2023226,779802

When outages hit

Share of this county's customer-hours by month.

0%
10%
20%
30%
40%
JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start dateHoursPeak customersCustomer-hours
Aug 29, 2015114.054,3721,651,098
Mar 10, 201637.822,878333,838
Jan 13, 202180.514,967323,903
Sep 17, 202155.015,774231,670
Feb 4, 201785.27,645212,963

Hours measure how long at least 200 customers in the county were out. Most customers get power back sooner.

Size your backup battery

Start with what you would keep running. Wattages are typical averages, so check your own appliances.

1,700 Whof battery capacity, allowing for about 15% conversion loss

If anyone relies on medical equipment, plan that with their provider. Run portable fuel generators outdoors only, at least 20 feet from doors, windows and vents. See the outage checklist.

Look up another county

Counties ranked nearby

How to read this

  • A major outage lasted at least 8 hours and reached customers equal to at least 1% of county residents.
  • Records cover outages of at least 200 customers in a county. They do not show what happened on your street.
  • Utilities that do not report can make a county look better than it is. Data ends in 2023. Read the full method.