Medina 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 |
|---|---|---|---|
| Feb 14, 2021 | 88 hrs | 20,977 (73%) | Winter Storm Uri |
| Apr 29, 2021 | 89 hrs | 9,388 (33%) | Drought |
| May 25, 2020 | 23 hrs | 5,765 (20%) | Thunderstorm Wind |
| Sep 19, 2021 | 5 hrs | 5,755 (20%) | Unnamed event |
| Jun 16, 2025 | 1 hrs | 4,944 (17%) | Drought |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Medina County, Texas that day.
Over the 12 years from 2014 to 2025, Medina County recorded 1,207 distinct power outage events, averaging 1.9 hours per event.
The single worst outage on record in Medina County started February 14, 2021 (Winter Storm Uri), lasting 88 hours and leaving up to 20,977 customers without power (73% of the county) at its peak.
May has historically been the worst month for outages in Medina County, with 134 events recorded during that month across the dataset.
Based on this history, Medina County earns a Reliability Grade of F, placing it in the 18th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Texas
Counties with the closest reliability grade and national percentile to Medina County.
| County | Grade | National percentile |
|---|---|---|
| Mason County | F | 18th |
| Roberts County | F | 18th |
| Zapata County | F | 18th |
| Reagan County | F | 18th |
| Duval County | F | 17th |
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 Medina County?
Between 2014 and 2025, Medina County recorded 1,207 outage events, averaging 1.9 hours each.
What is Medina County's reliability grade?
Medina County has a Reliability Grade of F, in the 18th national percentile.
What was the worst power outage in Medina County?
The worst outage on record started February 14, 2021 (Winter Storm Uri), lasting 88 hours and affecting up to 20,977 customers.