Stanislaus CountyPower Outage History
What this grade means
Top 20% most reliable nationally — infrequent, short outages. This county ranks in the most reliable fifth of all US counties in our dataset, based on 12 years of real DOE outage records: outages happen less often here, and when they do occur they tend to be resolved quickly compared to the rest of the country. Baseline outage risk is low, though a severe local storm can still occasionally cause a longer-than-usual outage regardless of the long-term track record.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Oct 23, 2024 | <1 hr | 13,425 (6%) | Unnamed event |
| Oct 28, 2024 | <1 hr | 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 |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Stanislaus County, California that day.
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 less than 1 hour 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).
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 |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
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 less than 1 hour and affecting up to 13,425 customers.