massoutage

County annual report · FIPS 06023

2021 Humboldt County, CA Power Outage Report

In 2021, customers in Humboldt County, CA went without power for an average of 32.5 hours, a total of 1.9M customer-hours (California average 6.6 hours). That ranks 12th worst of 57 California counties and 279th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
32.5
59,962 customers
Customer-hours out
1.9M
Peak customers out
11,724
Outages ≥1,000 out
48
1 of 10,000+ · 415 total
Longest outage
13d 13h
began August 30, 2021
Rank in state
12th/57
279th of 2,974 US

Compared with CA, the US and 2020

Humboldt County, CA average hours without power per customer compared with state and national averages, 2021Humboldt County 32.5 hours, California average 6.6 hours, US average 8.9 hours, Humboldt County, 2020 19.9 hoursHumboldt CountyHumboldt County32.5hCalifornia averageCalifornia average6.6hUS averageUS average8.9hHumboldt County, 2020Humboldt County, 202019.9h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Humboldt County, CA customer-hours without power by month, 2021Jan 554K, Feb 45K, Mar 52K, Apr 32K, May 35K, Jun 22K, Jul 37K, Aug 188K, Sep 175K, Oct 168K, Nov 140K, Dec 500K0200k400k600k554KJan45KFeb52KMar32KApr35KMay22KJun37KJul188KAug175KSep168KOct140KNov500KDec
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Customer-hours; January was the worst month.

Humboldt County year over year

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Humboldt County, CA: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.0h; 2018: 2.8h, coverage 91%; 2019: 87.9h, coverage 93%; 2020: 19.9h, coverage 94%; 2021: 32.5h, coverage 95%; 2022: 38.6h, coverage 95%; 2023: 43.4h; 2024: 22.2h; 2025: 9.1h02550751000%50%100%n/a2015n/a20160.0h20172.8h201887.9h201919.9h202032.5h202138.6h202243.4h202322.2h20249.1h2025
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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 California customers tracked each year.

Biggest outages in Humboldt County, 2021

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 24, 2021 18:30February 2, 2021 17:308d 23h11,724494K
2July 11, 2021 15:15July 11, 2021 23:458h 30m9,8866,293
3December 25, 2021 09:30December 31, 2021 00:155d 14h7,791455K
4November 9, 2021 00:30November 11, 2021 03:452d 3h6,13986K
5October 24, 2021 04:00October 26, 2021 02:451d 22h5,97626K
6March 29, 2021 15:45March 31, 2021 10:001d 18h5,11427K
7October 21, 2021 05:00October 24, 2021 02:302d 21h4,64521K
8January 12, 2021 13:15January 13, 2021 08:4519h 30m3,8797,715
9August 9, 2021 14:15August 11, 2021 09:001d 18h3,67818K
10September 18, 2021 13:00September 21, 2021 05:302d 16h3,52821K

Outage episodes by size in 2021: 164 reached 100+ customers, 48 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 Humboldt County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Pacific Gas & Electric Co.202110.4 hrs1.843.6 hrs1.32
Shelter Cove Resort Improvement Dist No. 1-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of California's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 59,962 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. Humboldt County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Humboldt County, CA annual power outage report, 2021, 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/2021/california/humboldt-county

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