massoutage

County annual report · FIPS 30045

2022 Judith Basin County, MT Power Outage Report

In 2022, customers in Judith Basin County, MT went without power for an average of 9.7 hours, a total of 9,726 customer-hours (Montana average 3.5 hours). That ranks 11th worst of 50 Montana counties and 754th of 2,976 nationally.

Summary data CSVJSON
Avg hrs / customer
9.7
1,006 customers
Customer-hours out
9,726
Peak customers out
501
Outages ≥1,000 out
0
0 of 10,000+ · 80 total
Longest outage
15h
began March 23, 2022
Rank in state
11th/50
754th of 2,976 US

Compared with MT, the US and 2021

Judith Basin County, MT average hours without power per customer compared with state and national averages, 2022Judith Basin County 9.7 hours, Montana average 3.5 hours, US average 8.3 hours, Judith Basin County, 2021 15.3 hoursJudith Basin CountyJudith Basin County9.7hMontana averageMontana average3.5hUS averageUS average8.3hJudith Basin County, 2021Judith Basin County,…15.3h
Use the arrow keys to read values.
Average hours without power per customer in 2022; last bar is this county in 2021.

Month by month

CSVJSON
Judith Basin County, MT customer-hours without power by month, 2022Jan 73, Feb 2, Mar 2,343, Apr 27, May 495, Jun 22, Jul 4,146, Aug 676, Sep 293, Oct 1,536, Nov 52, Dec 6302k4k6k73Jan2Feb2,343Mar27Apr495May22Jun4,146Jul676Aug293Sep1,536Oct52Nov63Dec
Use the arrow keys to read values.
Customer-hours; July was the worst month.

Judith Basin County year over year

CSVJSON
Judith Basin 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: 7.5h, coverage 76%; 2021: 15.3h, coverage 76%; 2022: 9.7h, coverage 76%; 2023: 3.6h; 2024: 34.8h; 2025: 14.5h0102030400%50%100%n/a2015n/a2016n/a2017n/a2018n/a20197.5h202015.3h20219.7h20223.6h202334.8h202414.5h2025
Use the arrow keys to read values.
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 Judith Basin County, 2022

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 18, 2022 22:00July 19, 2022 02:004h5011,876
2March 22, 2022 22:15March 23, 2022 01:002h 45m5001,375
3March 4, 2022 05:30March 4, 2022 08:002h 30m414932
4October 12, 2022 10:15October 12, 2022 11:451h 30m411515
5October 26, 2022 15:15October 26, 2022 17:302h 15m411898
6July 28, 2022 09:30July 28, 2022 10:451h 15m381458
7July 28, 2022 05:00July 28, 2022 07:452h 45m307844
8August 4, 2022 05:15August 4, 2022 07:152h307614
9May 20, 2022 02:15May 20, 2022 04:452h 30m220464
10July 10, 2022 10:45July 10, 2022 17:457h112784

Outage episodes by size in 2022: 11 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 Judith Basin County reported on EIA Form 861 for 2022, 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)20222.2 hrs1.142.0 hrs1.09
Fergus Electric Coop, Inc-----
Sun River 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 76% of Montana's customers in 2022; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 1,006 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. Judith Basin County has data for 2020–2025.

Cite this report

MassOutage (massoutage.com), Judith Basin County, MT annual power outage report, 2022, 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/2022/montana/judith-basin-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON