Denton CountyPower Outage History
What this grade means
Average — typical outage frequency and duration nationally. This county sits in the middle of the national distribution — its outage frequency and duration over the past 12 years are close to the nationwide median, neither notably better nor worse than most other US counties. A typical amount of backup-power preparedness is reasonable here.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Feb 14, 2021 | 97 hrs | 125,245 (37%) | Winter Storm Uri |
| Mar 4, 2025 | 39 hrs | 62,663 (19%) | High Wind |
| May 28, 2024 | 110 hrs | 62,169 (19%) | Hail |
| Jun 9, 2019 | 49 hrs | 33,492 (10%) | Thunderstorm Wind |
| Mar 3, 2023 | 19 hrs | 21,845 (7%) | Hail |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Denton County, Texas that day.
Over the 12 years from 2014 to 2025, Denton County recorded 1,680 distinct power outage events, averaging 2.2 hours per event.
The single worst outage on record in Denton County started February 14, 2021 (Winter Storm Uri), lasting 97 hours and leaving up to 125,245 customers without power (37% of the county) at its peak.
June has historically been the worst month for outages in Denton County, with 184 events recorded during that month across the dataset.
Based on this history, Denton County earns a Reliability Grade of C, placing it in the 57th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Texas
Counties with the closest reliability grade and national percentile to Denton County.
| County | Grade | National percentile |
|---|---|---|
| Collin County | C | 57th |
| Young County | C | 58th |
| Webb County | C | 57th |
| Runnels County | C | 57th |
| Hunt County | C | 57th |
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 Denton County?
Between 2014 and 2025, Denton County recorded 1,680 outage events, averaging 2.2 hours each.
What is Denton County's reliability grade?
Denton County has a Reliability Grade of C, in the 57th national percentile.
What was the worst power outage in Denton County?
The worst outage on record started February 14, 2021 (Winter Storm Uri), lasting 97 hours and affecting up to 125,245 customers.