Power outage history
Pettis County Missouri
3.3hours
without power for the average customer in a typical year, 2018–2025
82nd most of 110 in Missouri 49% below the national median
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 Pettis's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2021 was the worst well-recorded year, at 5.7 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Pettis, hours without power per customer
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 |
|---|---|---|---|---|---|---|
| Jan 1, 2021 | Winter storm | 2,257 | 15% | 35 h | 17 h | 28k |
| Jan 5, 2025 | Winter storm | 4,293 | 29% | 11 h | 3.0 h | 16k |
| May 19, 2025 | Thunderstorms | 811 | 5% | 24 h | 23 h | 11k |
| Jun 5, 2020 | No storm report | 1,363 | 9% | 13 h | 9.8 h | 6.1k |
| Jul 17, 2021 | No storm report | 2,577 | 17% | 2.5 h | 2.0 h | 6.0k |
| Jun 11, 2021 | Thunderstorms | 1,389 | 9% | 16 h | 11 h | 5.9k |
| Aug 15, 2019 | Thunderstorms | 794 | 5% | 13 h | 12 h | 5.4k |
| May 26, 2024 | Thunderstorms | 2,449 | 17% | 3.5 h | 2.8 h | 5.0k |
| Jan 12, 2019 | Winter storm | 635 | 4% | 20 h | – | 4.9k |
| Aug 31, 2020 | No storm report | 3,004 | 20% | 1.5 h | 48 min | 4.5k |
| Jan 21, 2025 | No storm report | 1,802 | 12% | 3.2 h | 5.8 h | 4.3k |
| Mar 5, 2025 | No storm report | 997 | 7% | 7.2 h | 5.8 h | 4.3k |
| Jan 11, 2022 | No storm report | 1,573 | 11% | 3.5 h | 30 min | 4.1k |
| Oct 9, 2021 | No storm report | 3,155 | 21% | 1.2 h | 12 h | 3.9k |
| Jun 4, 2020 | No storm report | 1,009 | 7% | 9.0 h | 12 h | 3.8k |
| Jul 25, 2023 | No storm report | 3,296 | 22% | 1.8 h | 1.5 h | 3.7k |
| May 7, 2024 | Tornadoes | 1,949 | 13% | 5.2 h | 1.8 h | 3.6k |
| May 2, 2022 | No storm report | 439 | 3% | 8.0 h | – | 3.5k |
| Jun 8, 2022 | Thunderstorms | 602 | 4% | 9.2 h | – | 3.3k |
| Dec 11, 2025 | No storm report | 1,803 | 12% | 2.2 h | 2.2 h | 3.2k |
| Nov 2, 2024 | No storm report | 487 | 3% | 6.5 h | – | 3.1k |
| Dec 6, 2020 | No storm report | 3,026 | 20% | 1.0 h | 1.0 h | 3.0k |
| Aug 24, 2024 | No storm report | 2,169 | 15% | 2.5 h | 1.8 h | 2.9k |
| Sep 27, 2020 | Thunderstorms | 1,517 | 10% | 4.0 h | 3.0 h | 2.9k |
| Jan 24, 2021 | No storm report | 364 | 2% | 7.8 h | – | 2.8k |
| Nov 11, 2022 | No storm report | 1,558 | 11% | 1.8 h | 1.8 h | 2.7k |
| Sep 14, 2023 | No storm report | 4,953 | 33% | 30 min | 2.5 h | 2.5k |
| Aug 31, 2021 | No storm report | 411 | 3% | 6.2 h | – | 2.5k |
| May 31, 2025 | No storm report | 373 | 3% | 6.0 h | – | 2.2k |
| Aug 3, 2022 | No storm report | 658 | 4% | 4.5 h | – | 2.2k |
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.
When it happens
The outage clock
Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.
What was happening
Weather behind the outages
Each outage is matched to NOAA storm reports for Pettis from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 65%
- Winter storm 19%
- Thunderstorms 14%
- Tornadoes 1.3%
Who keeps the lights on
Utilities serving Pettis
As each utility reports to the Energy Information Administration for its whole Missouri territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Union Electric Co | Investor Owned | 594 | 119 | 1.18 | 13.3 | 1.1M |
| Evergy Missouri West | Investor Owned | 184 | 104 | 1.49 | 12.1 | 309k |
| Evergy Metro | Investor Owned | 178 | 99 | 1.50 | 13.6 | 276k |
| Co-Mo Electric Coop Inc | Cooperative | 158 | 69 | 1.08 | 14.9 | 31k |
| West Central Electric Coop Inc | Cooperative | 109 | 67 | 0.95 | 12.9 | 16k |
| Central Missouri Elec Coop Inc | Cooperative | 423 | 86 | 1.54 | 12.6 | 11k |
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.
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 14,790 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 →