Johnston County power outages

Oklahoma outage history from 2015 to 2023, with the largest outages and a backup battery estimate.

Johnston County, Oklahoma had 10 major outages from 2015 to 2023

Higher outage time among US counties

Residents here averaged 1.62 times the US outage time per person and 1.14 times the Oklahoma rate. It ranks 15 of 69 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

1.1major outages per year
8 of 9years with a major outage
60 hrslongest major outage
Jun, Mayhardest months

June and May made up 51% of this county's outage time. The largest outage on record began Jun 18, 2023, reached 4,231 customers, and left at least 200 customers out for 59.5 hours.

Outage time per resident, rated Oklahoma counties
MostLeast

Outage impact by year

Customer-hours without power. 1,000 customers out for 2 hours is 2,000 customer-hours.

0
50K
100K
150K
200K
2015'152016'162017'172018'182019'192020'202021'212022'222023'23
Show yearly numbers
YearCustomer-hoursReported outagesMajor outages
201520,698111
201646,758202
201735,586191
201831,631261
201921,770180
202020,420151
202123,282191
202236,662142
2023130,391161

When outages hit

Share of this county's customer-hours by month.

0%
10%
20%
30%
40%
JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start dateHoursPeak customersCustomer-hours
Jun 18, 202359.54,231109,722
Feb 21, 201817.01,02815,350
May 9, 201625.51,11012,084
May 16, 202213.21,36911,791
Mar 23, 201618.01,61311,370

Hours measure how long at least 200 customers in the county were out. Most customers get power back sooner.

Size your backup battery

Start with what you would keep running. Wattages are typical averages, so check your own appliances.

1,700 Whof battery capacity, allowing for about 15% conversion loss

If anyone relies on medical equipment, plan that with their provider. Run portable fuel generators outdoors only, at least 20 feet from doors, windows and vents. See the outage checklist.

Look up another county

Counties ranked nearby

How to read this

  • A major outage lasted at least 8 hours and reached customers equal to at least 1% of county residents.
  • Records cover outages of at least 200 customers in a county. They do not show what happened on your street.
  • Utilities that do not report can make a county look better than it is. Data ends in 2023. Read the full method.