massoutage

County annual report · FIPS 30107

2024 Wheatland County, MT Power Outage Report

In 2024, customers in Wheatland County, MT went without power for an average of 9.6 hours, a total of 6,764 customer-hours (Montana average 8.5 hours). That ranks 14th worst of 51 Montana counties and 966th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
9.6
705 customers
Customer-hours out
6,764
Peak customers out
292
Outages ≥1,000 out
0
0 of 10,000+ · 66 total
Longest outage
8d 7h
began June 10, 2024
Rank in state
14th/51
966th of 2,990 US

Compared with MT, the US and 2023

Wheatland County, MT average hours without power per customer compared with state and national averages, 2024Wheatland County 9.6 hours, Montana average 8.5 hours, US average 12.6 hours, Wheatland County, 2023 8.6 hoursWheatland CountyWheatland County9.6hMontana averageMontana average8.5hUS averageUS average12.6hWheatland County, 2023Wheatland County, 20…8.6h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Wheatland County, MT customer-hours without power by month, 2024Jan 51, Feb 2, Mar 24, Apr 2,069, May 1,775, Jun 432, Jul 49, Aug 331, Sep 126, Oct 1,183, Nov 166, Dec 55801k2k3k51Jan2Feb24Mar2,069Apr1,775May432Jun49Jul331Aug126Sep1,183Oct166Nov558Dec
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Customer-hours; April was the worst month.

Wheatland County year over year

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Wheatland 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: 57.0h, coverage 76%; 2021: 16.4h, coverage 76%; 2022: 10.9h, coverage 76%; 2023: 8.6h; 2024: 9.6h; 2025: 10.7h02040600%50%100%n/a2015n/a2016n/a2017n/a2018n/a201957.0h202016.4h202110.9h20228.6h20239.6h202410.7h2025
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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 Wheatland County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 15, 2024 19:00April 16, 2024 02:007h2922,044
2May 8, 2024 01:00May 8, 2024 02:001h292292
3November 21, 2024 01:30November 21, 2024 02:0030m287144
4December 18, 2024 22:45December 19, 2024 00:001h 15m286287
5May 8, 2024 04:00May 9, 2024 02:1522h 15m1701,477
6October 17, 2024 13:00October 17, 2024 16:003h165461
7October 21, 2024 17:15October 21, 2024 22:455h 30m112174
8December 19, 2024 01:00December 19, 2024 06:005h65268
9August 28, 2024 13:00August 28, 2024 16:453h 45m63177
10September 18, 2024 18:15September 18, 2024 20:452h 30m4685

Outage episodes by size in 2024: 7 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 Wheatland 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
NorthWestern Energy LLC - (MT)20243.9 hrs1.302.0 hrs0.95
Fergus 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 ÷ 705 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. Wheatland County has data for 2020–2025.

Cite this report

MassOutage (massoutage.com), Wheatland 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/wheatland-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON