Del Norte CountyPower Outage History
What this grade means
Bottom 20% least reliable nationally — frequent and/or long outages. This county ranks in the least reliable fifth of all US counties in our dataset: some combination of frequent outages, long restoration times, or customers affected puts it near the bottom nationally. Backup power is worth prioritizing here rather than treating it as optional.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Dec 19, 2025 | 2 hrs | 13,231 (82%) | Strong Wind |
| Aug 30, 2025 | 2 hrs | 13,204 (81%) | Unnamed event |
| Aug 18, 2023 | 178 hrs | 12,963 (80%) | Wildfire |
| Oct 20, 2022 | 2 hrs | 12,859 (79%) | Unnamed event |
| Mar 28, 2023 | 4 hrs | 12,857 (79%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Del Norte County, California that day.
Over the 9 years from 2017 to 2025, Del Norte County recorded 337 distinct power outage events, averaging 4.8 hours per event.
The single worst outage on record in Del Norte County started December 19, 2025 (Strong Wind), lasting 2 hours and leaving up to 13,231 customers without power (82% of the county) at its peak.
December has historically been the worst month for outages in Del Norte County, with 62 events recorded during that month across the dataset.
Based on this history, Del Norte County earns a Reliability Grade of F, placing it in the 6th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in California
Counties with the closest reliability grade and national percentile to Del Norte County.
| County | Grade | National percentile |
|---|---|---|
| Santa Cruz County | F | 6th |
| Humboldt County | F | 5th |
| Mendocino County | F | 5th |
| Tehama County | F | 7th |
| Napa County | F | 7th |
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 Del Norte County?
Between 2017 and 2025, Del Norte County recorded 337 outage events, averaging 4.8 hours each.
What is Del Norte County's reliability grade?
Del Norte County has a Reliability Grade of F, in the 6th national percentile.
What was the worst power outage in Del Norte County?
The worst outage on record started December 19, 2025 (Strong Wind), lasting 2 hours and affecting up to 13,231 customers.