massoutage

County annual report · FIPS 06045

2025 Mendocino County, CA Power Outage Report

In 2025, customers in Mendocino County, CA went without power for an average of 19.1 hours, a total of 745K customer-hours (California average 7.6 hours). That ranks 8th worst of 57 California counties and 372nd of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
19.1
39,041 customers
Customer-hours out
745K
Peak customers out
12,955
Outages ≥1,000 out
27
1 of 10,000+ · 507 total
Longest outage
6d 2h
began December 24, 2025
Rank in state
8th/57
372nd of 3,000 US

Compared with CA, the US and 2024

Mendocino County, CA average hours without power per customer compared with state and national averages, 2025Mendocino County 19.1 hours, California average 7.6 hours, US average 5.9 hours, Mendocino County, 2024 37.9 hoursMendocino CountyMendocino County19.1hCalifornia averageCalifornia average7.6hUS averageUS average5.9hMendocino County, 2024Mendocino County, 20…37.9h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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Mendocino County, CA customer-hours without power by month, 2025Jan 16K, Feb 38K, Mar 46K, Apr 32K, May 30K, Jun 19K, Jul 23K, Aug 24K, Sep 33K, Oct 13K, Nov 37K, Dec 433K0200k400k600k16KJan38KFeb46KMar32KApr30KMay19KJun23KJul24KAug33KSep13KOct37KNov433KDec
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Customer-hours; December was the worst month.

Mendocino County year over year

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Mendocino County, CA: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.0h; 2018: 11.1h, coverage 91%; 2019: 107.2h, coverage 93%; 2020: 8.6h, coverage 94%; 2021: 35.5h, coverage 95%; 2022: 12.4h, coverage 95%; 2023: 48.5h; 2024: 37.9h; 2025: 19.1h0501001500%50%100%n/a2015n/a20160.0h201711.1h2018107.2h20198.6h202035.5h202112.4h202248.5h202337.9h202419.1h2025
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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 Mendocino County, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 24, 2025 01:45December 30, 2025 03:456d 2h12,955412K
2September 21, 2025 07:15September 21, 2025 07:4530m6,5923,296
3March 14, 2025 10:15March 15, 2025 23:301d 13h3,15725K
4April 7, 2025 04:30April 7, 2025 04:4515m2,608652
5April 11, 2025 03:30April 11, 2025 10:307h2,49417K
6May 22, 2025 15:15May 25, 2025 02:002d 10h2,3443,001
7July 13, 2025 15:45July 13, 2025 22:457h2,0492,853
8November 5, 2025 02:15November 7, 2025 11:002d 8h1,70615K
9August 14, 2025 15:45August 15, 2025 20:151d 4h1,4786,622
10October 20, 2025 15:00October 20, 2025 18:303h 30m1,4384,649

Outage episodes by size in 2025: 145 reached 100+ customers, 27 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 Mendocino County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Pacific Gas & Electric Co.20248.5 hrs2.154.6 hrs1.82
City of Ukiah - (CA)-----

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 California's customers in 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 39,041 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. Mendocino County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Mendocino County, CA annual power outage report, 2025, 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/2025/california/mendocino-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON