Stanislaus County Power Outage History
2018–2025 · California
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Oct 23, 2024 | 0 hrs | 13,425 (6%) | Unnamed event |
| Oct 28, 2024 | 0 hrs | 13,408 (6%) | Unnamed event |
| May 7, 2019 | 4 hrs | 6,946 (3%) | Unnamed event |
| Sep 22, 2023 | 1 hrs | 6,380 (3%) | Unnamed event |
| Jan 27, 2021 | 19 hrs | 6,108 (3%) | High Wind |
Over the 8 years from 2018 to 2025, Stanislaus County recorded 343 distinct power outage events, averaging 1.9 hours per event.
The single worst outage on record in Stanislaus County started October 23, 2024, lasting 0 hours and leaving up to 13,425 customers without power (6% of the county) at its peak.
December has historically been the worst month for outages in Stanislaus County, with 39 events recorded during that month across the dataset.
Based on this history, Stanislaus County earns a Reliability Grade of A, placing it in the 97th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Stanislaus County's outage profile
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Similar counties in California
Counties with the closest reliability grade and national percentile to Stanislaus County.
| County | Grade | National percentile |
|---|---|---|
| Lassen County | A | 96th |
| San Benito County | B | 80th |
| Kings County | B | 78th |
| Modoc County | B | 75th |
| Imperial County | B | 75th |
FAQ
How often does power go out in Stanislaus County?
Between 2018 and 2025, Stanislaus County recorded 343 outage events, averaging 1.9 hours each.
What is Stanislaus County's reliability grade?
Stanislaus County has a Reliability Grade of A, in the 97th national percentile.
What was the worst power outage in Stanislaus County?
The worst outage on record started October 23, 2024, lasting 0 hours and affecting up to 13,425 customers.