Yolo County Power Outage History
2014–2025 · California
Worse than average — more frequent or longer outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jan 27, 2021 | 35 hrs | 30,190 (30%) | Drought |
| Jan 1, 2023 | 64 hrs | 27,261 (27%) | Drought |
| Jan 8, 2023 | 8 hrs | 25,935 (26%) | Drought |
| Jan 8, 2023 | 28 hrs | 25,663 (25%) | Drought |
| Mar 10, 2016 | 1 hrs | 23,719 (23%) | Drought |
Over the 12 years from 2014 to 2025, Yolo County recorded 1,395 distinct power outage events, averaging 2.7 hours per event.
The single worst outage on record in Yolo County started January 27, 2021 (Drought), lasting 35 hours and leaving up to 30,190 customers without power (30% of the county) at its peak.
October has historically been the worst month for outages in Yolo County, with 168 events recorded during that month across the dataset.
Based on this history, Yolo County earns a Reliability Grade of D, placing it in the 40th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in California
Counties with the closest reliability grade and national percentile to Yolo County.
| County | Grade | National percentile |
|---|---|---|
| San Bernardino County | C | 41st |
| Los Angeles County | C | 42nd |
| Solano County | C | 44th |
| Ventura County | D | 35th |
| Riverside County | C | 45th |
FAQ
How often does power go out in Yolo County?
Between 2014 and 2025, Yolo County recorded 1,395 outage events, averaging 2.7 hours each.
What is Yolo County's reliability grade?
Yolo County has a Reliability Grade of D, in the 40th national percentile.
What was the worst power outage in Yolo County?
The worst outage on record started January 27, 2021 (Drought), lasting 35 hours and affecting up to 30,190 customers.