Somervell CountyPower Outage History
What this grade means
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 |
|---|---|---|---|
| Apr 30, 2023 | 1 hrs | 3,223 (32%) | Unnamed event |
| Aug 25, 2021 | <1 hr | 3,075 (30%) | Unnamed event |
| Feb 15, 2021 | 80 hrs | 2,914 (29%) | Winter Storm Uri |
| Mar 21, 2022 | <1 hr | 2,147 (21%) | Drought |
| Feb 17, 2019 | <1 hr | 1,991 (20%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Somervell County, Texas that day.
Over the 9 years from 2017 to 2025, Somervell County recorded 345 distinct power outage events, averaging 2.5 hours per event.
The single worst outage on record in Somervell County started April 30, 2023, lasting 1 hours and leaving up to 3,223 customers without power (32% of the county) at its peak.
May has historically been the worst month for outages in Somervell County, with 45 events recorded during that month across the dataset.
Based on this history, Somervell County earns a Reliability Grade of B, placing it in the 62nd percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Texas
Counties with the closest reliability grade and national percentile to Somervell County.
| County | Grade | National percentile |
|---|---|---|
| Hood County | B | 63rd |
| Dickens County | B | 62nd |
| Gonzales County | B | 63rd |
| Hemphill County | B | 61st |
| Cameron County | B | 61st |
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 Somervell County?
Between 2017 and 2025, Somervell County recorded 345 outage events, averaging 2.5 hours each.
What is Somervell County's reliability grade?
Somervell County has a Reliability Grade of B, in the 62nd national percentile.
What was the worst power outage in Somervell County?
The worst outage on record started April 30, 2023, lasting 1 hours and affecting up to 3,223 customers.