massoutage

County annual report · FIPS 30025

2024 Fallon County, MT Power Outage Report

In 2024, customers in Fallon County, MT went without power for an average of 1.3 hours, a total of 2,878 customer-hours (Montana average 8.5 hours). That ranks 43rd worst of 51 Montana counties and 2640th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
1.3
2,280 customers
Customer-hours out
2,878
Peak customers out
447
Outages ≥1,000 out
0
0 of 10,000+ · 16 total
Longest outage
15h 30m
began July 4, 2024
Rank in state
43rd/51
2640th of 2,990 US

Compared with MT, the US and 2023

Fallon County, MT average hours without power per customer compared with state and national averages, 2024Fallon County 1.3 hours, Montana average 8.5 hours, US average 12.6 hours, Fallon County, 2023 0.1 hoursFallon CountyFallon County1.3hMontana averageMontana average8.5hUS averageUS average12.6hFallon County, 2023Fallon County, 20230.1h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Fallon County, MT customer-hours without power by month, 2024Jan 21, Feb 734, Mar 0, Apr 0, May 0, Jun 289, Jul 161, Aug 25, Sep 45, Oct 9, Nov 1,596, Dec 005001k1.5k2k21Jan734Feb0Mar0Apr0May289Jun161Jul25Aug45Sep9Oct1,596Nov0Dec
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Customer-hours; November was the worst month.

Fallon County year over year

CSVJSON
Fallon County, MT: average hours without power per customer by year2015: no data; 2016: no data; 2017: 1.3h; 2018: 0.2h, coverage 16%; 2019: 0.1h, coverage 75%; 2020: 1.7h, coverage 76%; 2021: 2.6h, coverage 76%; 2022: 0.8h, coverage 76%; 2023: 0.1h; 2024: 1.3h; 2025: 0.1h01230%50%100%n/a2015n/a20161.3h20170.2h20180.1h20191.7h20202.6h20210.8h20220.1h20231.3h20240.1h2025
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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 Montana customers tracked each year.

Biggest outages in Fallon County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1November 23, 2024 14:30November 23, 2024 17:303h447999
2February 8, 2024 21:15February 8, 2024 23:001h 45m431734
3November 19, 2024 04:00November 19, 2024 10:156h 15m106577
4June 21, 2024 16:00June 21, 2024 18:452h 45m101273
5November 23, 2024 11:45November 23, 2024 12:0015m8221
6July 30, 2024 15:15July 30, 2024 15:3015m164
7July 4, 2024 05:00July 4, 2024 20:3015h 30m10155
8January 8, 2024 18:00January 8, 2024 18:4545m97
9January 14, 2024 16:15January 14, 2024 18:001h 45m814
10July 30, 2024 20:30July 30, 2024 20:4515m72

Outage episodes by size in 2024: 4 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 Fallon 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
Montana-Dakota Utilities Co20242.9 hrs1.262.1 hrs1.10
WAPA-- Western Area Power Administration-----
Tongue River Electric Coop Inc-----
Goldenwest Electric Coop, Inc-----
Southeast 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 ÷ 2,280 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. Fallon County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Fallon 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2024/montana/fallon-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON