Power Out Map
– 0% of Perry out 0 customers out in Mississippi

Power outage history

Perry County Mississippi

12hours

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

36th most of 74 in Mississippi 1.8× the national median

Worst outage on record Hurricane Zeta · Oct 29, 2020 96% of customers out · 90% back in 2.8 days
Hours without power, average customer per year 12h / yr State average 9.8 h · national median 6.6 h
Major outages a year 8.6 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 9.1days Nov 20, 2017, over 1% of customers out
Outage hours on storm days 57% Share falling on days with a NOAA storm report here
Worst year 2020 37 hours without power, average customer
Electricity customers 4,806 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 Perry'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

2020 was the worst well-recorded year, at 37 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Perry, hours without power per customer

PerryUS median countyMississippi average
0 10 20 30 40 50 1.1 ’15 2.2 ’16 32 ’17 4.6 ’18 6.5 ’19 37 ’20 12 ’21 9.6 ’22 6.9 ’23 7.2 ’24 12 ’25 MS 9.8 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
Oct 28, 2020 Hurricane Zeta 4,597 96% 6.2 d 2.8 d 130k
Nov 20, 2017 No storm report 722 15% 9.1 d 31 h 108k
Apr 19, 2020 Tornadoes 2,984 62% 16 h 8.0 h 18k
Apr 17, 2022 Tornadoes 2,034 42% 22 h 21 h 16k
Apr 24, 2021 Thunderstorms 1,804 38% 17 h 13 h 12k
Jan 21, 2017 Tornadoes 1,328 28% 34 h 48 min 7.0k
Aug 30, 2021 Hurricane Ida 2,233 46% 9.8 h 3.0 h 6.6k
Apr 10, 2021 Thunderstorms 396 8% 2.3 d 2.3 d 6.5k
Oct 27, 2017 No storm report 70 1% 4.2 d – 5.9k
Nov 20, 2020 No storm report 671 14% 8.0 h 48 min 5.4k
Jul 7, 2019 No storm report 1,226 26% 4.8 h 15 h 5.0k
Mar 30, 2022 Tornadoes 956 20% 22 h 2.5 h 4.9k

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 +8h

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

  • No storm on record 43%
  • Tropical storm 38%
  • Tornadoes 9.8%
  • Thunderstorms 9.6%

Who keeps the lights on

Utilities serving Perry

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

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Mississippi Power Co Investor Owned 105 76 1.03 15.7 158k
Singing River Elec Cooperative Cooperative 156 156 – 13.5 73k
Pearl River Valley El Pwr Assn Cooperative 295 261 3.79 15.6 53k
Dixie Electric Power Assn Cooperative 349 211 2.73 13.9 38k

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 Mississippi

Where it is darkest

Hours / yr64+

All Mississippi 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 4,806 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 →