County annual report · FIPS 53061
2019 Snohomish County, WA Power Outage Report
In 2019, customers in Snohomish County, WA went without power for an average of 0.3 hours, a total of 212K customer-hours (Washington average 2.0 hours). That ranks 33rd worst of 37 Washington counties and 2731st of 2,945 nationally.
Compared with WA, the US and 2018
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Snohomish County, 2019
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 27, 2019 09:00 | December 28, 2019 04:30 | 19h 30m | 5,606 | 22K |
| 2 | July 16, 2019 23:45 | July 17, 2019 08:00 | 8h 15m | 4,542 | 3,829 |
| 3 | September 5, 2019 23:00 | September 6, 2019 06:00 | 7h | 3,713 | 3,298 |
| 4 | September 4, 2019 14:30 | September 4, 2019 22:30 | 8h | 3,428 | 1,831 |
| 5 | August 22, 2019 04:45 | August 22, 2019 13:45 | 9h | 2,974 | 15K |
| 6 | October 14, 2019 15:30 | October 15, 2019 02:15 | 10h 45m | 2,654 | 2,199 |
| 7 | June 26, 2019 15:30 | June 27, 2019 10:00 | 18h 30m | 2,347 | 6,583 |
| 8 | July 15, 2019 14:30 | July 16, 2019 04:15 | 13h 45m | 2,121 | 4,715 |
| 9 | July 21, 2019 17:15 | July 23, 2019 02:00 | 1d 8h | 2,027 | 5,014 |
| 10 | July 29, 2019 07:30 | July 29, 2019 22:45 | 15h 15m | 1,961 | 3,727 |
Outage episodes by size in 2019: 106 reached 100+ customers, 34 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 Snohomish County reported on EIA Form 861 for 2019, 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 |
|---|---|---|---|---|---|
| Bonneville Power Administration | - | - | - | - | - |
| PUD No 1 of Snohomish County | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 86% of Washington's customers in 2019; 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, 2019, 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/). https://massoutage.com/reports/2019/washington/snohomish-county