massoutage

County annual report · FIPS 30033

2024 Garfield County, MT Power Outage Report

In 2024, customers in Garfield County, MT went without power for an average of 0.1 hours, a total of 95 customer-hours (Montana average 8.5 hours). That ranks 51st worst of 51 Montana counties and 2942nd of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
0.1
1,613 customers
Customer-hours out
95
Peak customers out
5
Outages ≥1,000 out
0
0 of 10,000+ · 5 total
Longest outage
23h 45m
began August 19, 2024
Rank in state
51st/51
2942nd of 2,990 US

Compared with MT, the US and 2023

Garfield County, MT average hours without power per customer compared with state and national averages, 2024Garfield County 0.1 hours, Montana average 8.5 hours, US average 12.6 hours, Garfield County, 2023 0.0 hoursGarfield CountyGarfield County0.1hMontana averageMontana average8.5hUS averageUS average12.6hGarfield County, 2023Garfield County, 20230.0h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Garfield County, MT customer-hours without power by month, 2024Jan 2, Feb 0, Mar 0, Apr 0, May 0, Jun 0, Jul 0, Aug 25, Sep 0, Oct 0, Nov 0, Dec 680204060802Jan0Feb0Mar0Apr0May0Jun0Jul25Aug0Sep0Oct0Nov68Dec
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Customer-hours; December was the worst month.

Garfield County year over year

CSVJSON
Garfield County, MT: average hours without power per customer by year2015: no data; 2016: no data; 2017: no data; 2018: no data; 2019: no data; 2020: 0.0h, coverage 76%; 2021: 0.0h, coverage 76%; 2022: no data; 2023: 0.0h; 2024: 0.1h; 2025: 0.0h0000.10%50%100%n/a2015n/a2016n/a2017n/a2018n/a20190.0h20200.0h2021n/a20220.0h20230.1h20240.0h2025
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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 Montana customers tracked each year.

Biggest outages in Garfield County, 2024

The 5 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 5, 2024 16:15December 5, 2024 23:457h 30m538
2August 19, 2024 21:15August 20, 2024 21:0023h 45m225
3December 9, 2024 17:00December 10, 2024 02:009h218
4December 10, 2024 16:45December 10, 2024 22:456h212
5January 4, 2024 17:00January 4, 2024 19:152h 15m12

Outage episodes by size in 2024: 0 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 Garfield County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
WAPA-- Western Area Power Administration-----
McCone Electric Coop Inc-----

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 Montana's customers in 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 1,613 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. Garfield County has data for 2020–2021, 2023–2025.

Cite this report

MassOutage (massoutage.com), Garfield County, MT annual power outage report, 2024, 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/). https://massoutage.com/reports/2024/montana/garfield-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON