massoutage

County annual report · FIPS 08123

2025 Weld County, CO Power Outage Report

In 2025, customers in Weld County, CO went without power for an average of 5.5 hours, a total of 675K customer-hours (Colorado average 4.6 hours). That ranks 15th worst of 52 Colorado counties and 1378th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
5.5
122,323 customers
Customer-hours out
675K
Peak customers out
11,457
Outages ≥1,000 out
67
2 of 10,000+ · 1,003 total
Longest outage
4d 7h
began July 10, 2025
Rank in state
15th/52
1378th of 3,000 US

Compared with CO, the US and 2024

Weld County, CO average hours without power per customer compared with state and national averages, 2025Weld County 5.5 hours, Colorado average 4.6 hours, US average 5.9 hours, Weld County, 2024 4.2 hoursWeld CountyWeld County5.5hColorado averageColorado average4.6hUS averageUS average5.9hWeld County, 2024Weld County, 20244.2h
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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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Weld County, CO customer-hours without power by month, 2025Jan 20K, Feb 57K, Mar 56K, Apr 37K, May 38K, Jun 26K, Jul 171K, Aug 43K, Sep 24K, Oct 48K, Nov 22K, Dec 131K050k100k150k200k20KJan57KFeb56KMar37KApr38KMay26KJun171KJul43KAug24KSep48KOct22KNov131KDec
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Customer-hours; July was the worst month.

Weld County year over year

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Weld County, CO: average hours without power per customer by year2015: 1.9h; 2016: 6.2h; 2017: 1.7h; 2018: 1.6h, coverage 88%; 2019: 2.3h, coverage 83%; 2020: 2.9h, coverage 84%; 2021: 8.4h, coverage 83%; 2022: 2.1h, coverage 84%; 2023: 3.6h; 2024: 4.2h; 2025: 5.5h02.557.5100%50%100%1.9h20156.2h20161.7h20171.6h20182.3h20192.9h20208.4h20212.1h20223.6h20234.2h20245.5h2025
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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 Colorado customers tracked each year.

Biggest outages in Weld County, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 24, 2025 16:30March 25, 2025 01:309h11,45712K
2December 17, 2025 16:15December 19, 2025 05:301d 13h10,855112K
3May 18, 2025 21:00May 19, 2025 22:001d 1h9,8892,991
4July 9, 2025 11:30July 10, 2025 07:1519h 45m8,30221K
5November 25, 2025 10:15November 26, 2025 00:1514h7,5626,250
6March 14, 2025 12:30March 15, 2025 09:3021h6,25222K
7February 11, 2025 18:15February 12, 2025 02:308h 15m5,17123K
8October 2, 2025 10:30October 4, 2025 19:452d 9h5,1645,209
9April 27, 2025 21:15April 28, 2025 02:455h 30m4,6201,485
10April 30, 2025 02:15April 30, 2025 04:001h 45m3,7166,479

Outage episodes by size in 2025: 198 reached 100+ customers, 67 reached 1,000+ customers, 2 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 Weld 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
Public Service Co of Colorado20245.9 hrs1.682.6 hrs1.36
United Power, Inc202477 min1.2077 min1.20
Poudre Valley REA, Inc20245.4 hrs1.3374 min0.72
City of Longmont202419 min0.4719 min0.47
WAPA-- Western Area Power Administration-----
Highline Electric Assn-----
High West Energy, Inc-----
Morgan County Rural Elec Assn-----

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 Colorado's customers in 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 122,323 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. Weld County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Weld County, CO 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/colorado/weld-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON