Power Out Map
– 0% of Jefferson out 0 customers out in Oklahoma

Power outage history

Jefferson County Oklahoma

14hours

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

9th most of 75 in Oklahoma 2.1× the national median

Worst outage on record Jun 30, 2017 100% of customers out · 90% back in 19 hours
Hours without power, average customer per year 14h / yr State average 8.3 h · national median 6.6 h
Major outages a year 9.6 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 2hours Median across major outages, from the peak
Longest single outage 47hours Jun 17, 2023, over 1% of customers out
Outage hours on storm days 26% Share falling on days with a NOAA storm report here
Worst year 2023 28 hours without power, average customer
Electricity customers 2,420 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 Jefferson'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

2023 was the worst well-recorded year, at 28 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Jefferson, hours without power per customer

JeffersonUS median countyOklahoma average
0 10 20 30 40 13 ’15 6.4 ’16 30 ’17 12 ’18 17 ’19 7.9 ’20 4.1 ’21 7.1 ’22 28 ’23 17 ’24 15 ’25 OK 8.3 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
Jun 30, 2017 No storm report 2,420 100% 31 h 19 h 37k
May 28, 2015 Thunderstorms 1,907 79% 23 h 5.0 h 28k
Nov 3, 2024 No storm report 2,260 93% 16 h 11 h 26k
Jun 15, 2023 Thunderstorms 1,373 57% 45 h 9.8 h 17k
Jun 2, 2023 Thunderstorms 801 33% 21 h 20 h 13k
Apr 5, 2025 Thunderstorms 1,532 63% 40 h 48 min 13k
Sep 30, 2019 No storm report 1,305 54% 8.2 h 12 h 11k
Dec 28, 2017 No storm report 1,273 53% 7.2 h 2.2 h 9.2k
Jun 17, 2023 Thunderstorms 938 39% 47 h 13 h 8.4k
Dec 20, 2019 No storm report 266 11% 28 h 28 h 7.5k
Feb 20, 2018 No storm report 661 27% 10 h 7.0 h 5.8k
May 23, 2016 No storm report 447 18% 16 h 10 h 5.1k

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 +10h 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 Jefferson from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • No storm on record 74%
  • Thunderstorms 25%
  • Heat 0.8%

Who keeps the lights on

Utilities serving Jefferson

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

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Oklahoma Gas & Electric Co Investor Owned 237 145 1.71 12.5 716k
Public Service Co of Oklahoma Investor Owned 200 98 1.48 14.2 506k
Cotton Electric Coop, Inc Cooperative 549 238 4.05 12.7 20k
Red River Valley Rrl Elec Assn Cooperative – – – 12.0 16k
Town of Ryan OK – – – – 4.4k

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 Oklahoma

Where it is darkest

Hours / yr64+

All Oklahoma 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 2,420 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 →