Power Out Map
– 0% of Oldham out 0 customers out in Texas

Power outage history

Oldham County Texas

15hours

without power for the average customer in a typical year, 2018–2025

79th most of 240 in Texas 2.2× the national median

Worst outage on record Mar 14, 2019 60% of customers out · 90% back in 43 hours
Hours without power, average customer per year 15h / yr State average 9.0 h · national median 6.6 h
Major outages a year 4.5 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 3hours Median across major outages, from the peak
Longest single outage 4.5days Dec 23, 2020, over 1% of customers out
Outage hours on storm days 56% Share falling on days with a NOAA storm report here
Worst year 2019 30 hours without power, average customer
Electricity customers 948 ORNL customer model · 8 well-covered years

Every day since 2015

Eleven years, one night at a time

Each cell is a day. The brighter it is, the larger the share of Oldham's customers who were without power at that day's worst moment.

20152016201720182019202020212022202320242025
0%100% of customers out

Year by year

Hours in the dark, per customer

2019 was the worst well-recorded year, at 30 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Oldham, hours without power per customer

OldhamUS median countyTexas average
0 10 20 30 40 3.6 ’15 ’16 14 ’17 1.7 ’18 30 ’19 30 ’20 16 ’21 9.7 ’22 4.6 ’23 6.5 ’24 18 ’25 TX 9.0 US 6.6

The record

The biggest outages since 2015

Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.

Began Storm Peak out Share Lasted 90% restored Customer-hours
Mar 13, 2019 Windstorm 569 60% 3.1 d 43 h 23k
Oct 28, 2020 Winter storm 948 100% 26 h 17 h 12k
Mar 14, 2025 Windstorm 584 62% 2.1 d 2.0 h 12k
Apr 30, 2017 No storm report 948 100% 11 h 10 h 9.7k
Dec 23, 2020 No storm report 78 8% 4.5 d 4.5 d 8.4k
Feb 16, 2021 No storm report 948 100% 8.2 h 6.8 h 6.5k
Aug 21, 2022 No storm report 914 96% 6.0 h 3.2 h 2.8k
May 23, 2015 No storm report 858 91% 5.2 h 6.5 h 2.3k
Oct 26, 2024 No storm report 948 100% 2.8 h 2.2 h 2.2k
Jun 25, 2017 Thunderstorms 385 41% 12 h 11 h 2.0k
Mar 17, 2021 Winter storm 325 34% 15 h 5.8 h 1.6k
Sep 10, 2019 No storm report 222 23% 8.0 h 6.8 h 1.6k

After the peak

How fast the lights come back

Each line is one major outage, from its peak. The amber line is the typical path.

0% 25% 50% 75% 100% peak+24h+48h+72h+96h half back by +8h 90% by +10h

When it happens

The outage clock

Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.

00061218 Jan inside

What was happening

Weather behind the outages

Each outage is matched to NOAA storm reports for Oldham from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • No storm on record 44%
  • Windstorm 37%
  • Winter storm 14%
  • Thunderstorms 2.1%
  • Wildfire 1.8%

Who keeps the lights on

Utilities serving Oldham

As each utility reports to the Energy Information Administration for its whole Texas territory, not this county alone. Outage minutes include major storm days.

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Southwestern Public Service Co Investor Owned 441 151 1.71 13.9 224k
Deaf Smith Electric Coop, Inc Cooperative 514 338 2.39 8.6 3.0k
Rita Blanca Electric Coop, Inc Cooperative 885 159 4.12 8.4 1.2k
Farmers Electric Coop, Inc Cooperative – – – – –

EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.

Next door

Neighbouring counties

Across Texas

Where it is darkest

Hours / yr64+

All Texas counties →

About these numbers

Notes

Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 948 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →