County annual report · FIPS 53061
2025 Snohomish County, WA Power Outage Report
In 2025, customers in Snohomish County, WA went without power for an average of 2.2 hours, a total of 1.4M customer-hours (Washington average 7.0 hours). That ranks 29th worst of 33 Washington counties and 2339th of 3,000 nationally.
Compared with WA, the US and 2024
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Snohomish County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 16, 2025 21:00 | December 19, 2025 01:30 | 2d 4h | 53,684 | 746K |
| 2 | February 23, 2025 19:45 | February 26, 2025 13:30 | 2d 17h | 16,786 | 180K |
| 3 | October 19, 2025 17:45 | October 21, 2025 04:30 | 1d 10h | 7,595 | 43K |
| 4 | May 21, 2025 14:15 | May 22, 2025 11:00 | 20h 45m | 5,160 | 8,840 |
| 5 | February 23, 2025 01:00 | February 23, 2025 11:15 | 10h 15m | 5,022 | 4,574 |
| 6 | May 11, 2025 06:30 | May 11, 2025 15:30 | 9h | 4,371 | 7,714 |
| 7 | February 13, 2025 13:15 | February 14, 2025 04:15 | 15h | 4,092 | 14K |
| 8 | February 6, 2025 03:45 | February 7, 2025 05:00 | 1d 1h | 4,051 | 19K |
| 9 | July 16, 2025 07:15 | July 17, 2025 10:15 | 1d 3h | 3,899 | 7,746 |
| 10 | December 19, 2025 02:15 | December 21, 2025 06:45 | 2d 4h | 3,745 | 79K |
Outage episodes by size in 2025: 182 reached 100+ customers, 69 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 Snohomish County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| PUD No 1 of Snohomish County | 2024 | 10.3 hrs | 2.48 | 3.0 hrs | 1.56 |
| Bonneville Power Administration | - | - | - | - | - |
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 Washington's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 638,029 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. Snohomish County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Snohomish County, WA 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/washington/snohomish-county