Hemphill CountyPower Outage History
2014–2025 · Texas
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Mar 13, 2019 | 2 hrs | 1,802 (76%) | High Wind |
| Oct 28, 2020 | 133 hrs | 1,706 (72%) | Drought |
| Nov 17, 2015 | 6 hrs | 1,563 (66%) | Tornado |
| Mar 11, 2016 | <1 hr | 1,479 (63%) | Unnamed event |
| Mar 14, 2021 | 2 hrs | 1,475 (62%) | Flash Flood |
Over the 12 years from 2014 to 2025, Hemphill County recorded 83 distinct power outage events, averaging 5.0 hours per event.
The single worst outage on record in Hemphill County started March 13, 2019 (High Wind), lasting 2 hours and leaving up to 1,802 customers without power (76% of the county) at its peak.
June has historically been the worst month for outages in Hemphill County, with 11 events recorded during that month across the dataset.
Based on this history, Hemphill County earns a Reliability Grade of B, placing it in the 61st percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Hemphill County's outage profile
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Read our mission →Similar counties in Texas
Counties with the closest reliability grade and national percentile to Hemphill County.
| County | Grade | National percentile |
|---|---|---|
| Cameron County | B | 61st |
| Dickens County | B | 62nd |
| McCulloch County | B | 60th |
| Wise County | B | 60th |
| Bowie County | B | 60th |
Most reliable counties in Texas
The top 3 counties in Texas by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Zavala County | A | 95th |
| Jasper County | A | 94th |
| Fayette County | A | 91st |
Least reliable counties in Texas
The bottom 3 counties in Texas by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Trinity County | F | 2nd |
| Orange County | F | 2nd |
| Marion County | F | 4th |
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 Hemphill County?
Between 2014 and 2025, Hemphill County recorded 83 outage events, averaging 5.0 hours each.
What is Hemphill County's reliability grade?
Hemphill County has a Reliability Grade of B, in the 61st national percentile.
What was the worst power outage in Hemphill County?
The worst outage on record started March 13, 2019 (High Wind), lasting 2 hours and affecting up to 1,802 customers.