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

Power outage history

Johnston County Oklahoma

8.7hours

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

24th most of 75 in Oklahoma 1.3× the national median

Worst outage on record Jun 17, 2023 60% of customers out · 90% back in 2.3 days
Hours without power, average customer per year 8.7h / yr State average 8.3 h · national median 6.6 h
Major outages a year 4.8 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 3.7days Apr 13, 2015, over 1% of customers out
Outage hours on storm days 60% Share falling on days with a NOAA storm report here
Worst year 2023 21 hours without power, average customer
Electricity customers 7,045 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 Johnston'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 21 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Johnston, hours without power per customer

JohnstonUS median countyOklahoma average
0 5 10 15 20 25 6.7 ’15 8.0 ’16 6.0 ’17 5.8 ’18 4.2 ’19 4.3 ’20 4.5 ’21 7.0 ’22 21 ’23 10 ’24 12 ’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 17, 2023 Thunderstorms 4,231 60% 2.7 d 2.3 d 111k
Apr 13, 2015 No storm report 296 4% 3.7 d – 26k
Apr 28, 2024 Tornadoes 3,078 44% 38 h 6.2 h 24k
Feb 21, 2018 Ice storm 1,028 15% 40 h 35 h 22k
May 17, 2025 Thunderstorms 3,098 44% 5.0 h 3.0 h 14k
May 15, 2022 Thunderstorms 1,369 19% 19 h 5.2 h 13k
May 9, 2016 Tornadoes 1,110 16% 26 h 23 h 12k
Mar 23, 2016 Thunderstorms 1,613 23% 22 h 17 h 12k
Jun 8, 2025 Flooding 857 12% 18 h 17 h 11k
Jul 30, 2020 Thunderstorms 1,086 15% 20 h 14 h 11k
Nov 3, 2024 No storm report 2,620 37% 4.0 h 4.5 h 10k
May 18, 2025 No storm report 1,120 16% 16 h 4.8 h 10.0k

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 +4h 90% by +14h

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 Johnston from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • No storm on record 40%
  • Thunderstorms 40%
  • Tornadoes 8.8%
  • Ice storm 5.2%
  • Flooding 3.6%
  • Winter storm 2.1%

Who keeps the lights on

Utilities serving Johnston

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
Red River Valley Rrl Elec Assn Cooperative – – – 12.0 16k
Southeastern Electric Coop Inc Cooperative 398 268 2.14 12.3 16k
People's Electric Cooperative Cooperative 245 212 2.60 15.6 15k

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 7,045 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 →