County annual report · FIPS 53061
2022 Snohomish County, WA Power Outage Report
In 2022, customers in Snohomish County, WA went without power for an average of 9.6 hours, a total of 6.1M customer-hours (Washington average 6.6 hours). That ranks 12th worst of 33 Washington counties and 758th of 2,976 nationally.
Compared with WA, the US and 2021
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Snohomish County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 3, 2022 16:15 | November 5, 2022 09:45 | 1d 17h | 166,046 | 645K |
| 2 | November 5, 2022 11:45 | November 5, 2022 14:15 | 2h 30m | 144,105 | 210K |
| 3 | November 5, 2022 15:00 | November 13, 2022 00:00 | 7d 9h | 135,050 | 3.7M |
| 4 | November 30, 2022 01:45 | December 5, 2022 11:45 | 5d 10h | 52,819 | 753K |
| 5 | November 27, 2022 04:30 | November 28, 2022 11:00 | 1d 6h | 10,811 | 43K |
| 6 | December 22, 2022 11:15 | December 29, 2022 04:15 | 6d 17h | 10,108 | 218K |
| 7 | May 18, 2022 10:45 | May 19, 2022 14:30 | 1d 3h | 9,877 | 18K |
| 8 | February 21, 2022 12:30 | February 24, 2022 00:30 | 2d 12h | 6,907 | 76K |
| 9 | May 30, 2022 15:30 | May 30, 2022 22:45 | 7h 15m | 6,380 | 8,013 |
| 10 | July 26, 2022 23:30 | July 27, 2022 07:30 | 8h | 5,689 | 1,778 |
Outage episodes by size in 2022: 199 reached 100+ customers, 82 reached 1,000+ customers, 6 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 2022, 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 | 2022 | 16.7 hrs | 2.32 | 2.3 hrs | 1.14 |
| 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 87% of Washington's customers in 2022; 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, 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/washington/snohomish-county