Davis 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 |
|---|---|---|---|
| Sep 8, 2020 | 156 hrs | 39,446 (30%) | Unnamed event |
| Sep 2, 2017 | <1 hr | 19,340 (15%) | Unnamed event |
| Jul 1, 2024 | 2 hrs | 17,786 (13%) | Unnamed event |
| Oct 14, 2017 | <1 hr | 17,735 (13%) | Unnamed event |
| Jun 12, 2018 | <1 hr | 16,562 (13%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Davis County, Utah that day.
Over the 9 years from 2017 to 2025, Davis County recorded 773 distinct power outage events, averaging 2.3 hours per event.
The single worst outage on record in Davis County started September 8, 2020, lasting 156 hours and leaving up to 39,446 customers without power (30% of the county) at its peak.
August has historically been the worst month for outages in Davis County, with 106 events recorded during that month across the dataset.
Based on this history, Davis County earns a Reliability Grade of A, placing it in the 80th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Utah
Counties with the closest reliability grade and national percentile to Davis County.
| County | Grade | National percentile |
|---|---|---|
| Cache County | A | 84th |
| San Juan County | A | 85th |
| Garfield County | B | 75th |
| Uintah County | A | 88th |
| Sevier County | B | 72nd |
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 Davis County?
Between 2017 and 2025, Davis County recorded 773 outage events, averaging 2.3 hours each.
What is Davis County's reliability grade?
Davis County has a Reliability Grade of A, in the 80th national percentile.
What was the worst power outage in Davis County?
The worst outage on record started September 8, 2020, lasting 156 hours and affecting up to 39,446 customers.