Johnson County power outages

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

Johnson County, Missouri had 8 major outages from 2015 to 2023

Lower outage time among US counties

Residents here averaged 0.31 times the US outage time per person and 0.60 times the Missouri rate. It ranks 69 of 108 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

0.9major outages per year
3 of 9years with a major outage
45 hrslongest major outage
Jan, Junhardest months

January and June made up 35% of this county's outage time. The largest outage on record began Jan 12, 2019, reached 2,387 customers, and left at least 200 customers out for 45.0 hours.

Outage time per resident, rated Missouri 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
201519,551180
201627,102170
201710,59280
2018000
2019125,460255
202061,056350
202159,918322
202214,088190
202367,922381

When outages hit

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

0%
5%
10%
15%
20%
JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start dateHoursPeak customersCustomer-hours
Jan 12, 201945.02,38746,748
Jul 31, 202322.82,87630,770
Jun 11, 202117.52,92422,384
Nov 28, 20199.84,18821,651
Aug 17, 201910.53,90717,416

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.