Starr 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 |
|---|---|---|---|
| Jul 26, 2020 | 105 hrs | 10,726 (35%) | Hurricane Hanna |
| Feb 15, 2021 | 79 hrs | 10,236 (33%) | Winter Storm Uri |
| Apr 17, 2019 | 1 hrs | 7,865 (25%) | Unnamed event |
| Aug 15, 2019 | 1 hrs | 7,862 (25%) | Unnamed event |
| May 12, 2015 | 8 hrs | 6,979 (23%) | Flash Flood |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Starr County, Texas that day.
Over the 12 years from 2014 to 2025, Starr County recorded 505 distinct power outage events, averaging 2.8 hours per event.
The single worst outage on record in Starr County started July 26, 2020 (Hurricane Hanna), lasting 105 hours and leaving up to 10,726 customers without power (35% of the county) at its peak.
May has historically been the worst month for outages in Starr County, with 66 events recorded during that month across the dataset.
Based on this history, Starr County earns a Reliability Grade of C, placing it in the 41st percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Texas
Counties with the closest reliability grade and national percentile to Starr County.
| County | Grade | National percentile |
|---|---|---|
| Bee County | C | 42nd |
| Throckmorton County | C | 41st |
| Jack County | C | 42nd |
| Clay County | C | 42nd |
| Erath County | C | 40th |
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 Starr County?
Between 2014 and 2025, Starr County recorded 505 outage events, averaging 2.8 hours each.
What is Starr County's reliability grade?
Starr County has a Reliability Grade of C, in the 41st national percentile.
What was the worst power outage in Starr County?
The worst outage on record started July 26, 2020 (Hurricane Hanna), lasting 105 hours and affecting up to 10,726 customers.