Pettis County Power Outage History
2015–2025 · Missouri
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Sep 14, 2023 | 1 hrs | 4,953 (17%) | Drought |
| Jan 5, 2025 | 7 hrs | 4,293 (15%) | Winter Storm |
| Aug 23, 2024 | 1 hrs | 3,542 (12%) | Unnamed event |
| Jul 26, 2023 | 2 hrs | 3,296 (11%) | Drought |
| Sep 28, 2023 | 1 hrs | 3,293 (11%) | Drought |
Over the 11 years from 2015 to 2025, Pettis County recorded 431 distinct power outage events, averaging 2.0 hours per event.
The single worst outage on record in Pettis County started September 14, 2023 (Drought), lasting 1 hours and leaving up to 4,953 customers without power (17% of the county) at its peak.
June has historically been the worst month for outages in Pettis County, with 59 events recorded during that month across the dataset.
Based on this history, Pettis County earns a Reliability Grade of A, placing it in the 89th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Pettis County's outage profile
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Similar counties in Missouri
Counties with the closest reliability grade and national percentile to Pettis County.
| County | Grade | National percentile |
|---|---|---|
| Saline County | A | 89th |
| Butler County | A | 89th |
| St. Charles County | A | 88th |
| Macon County | A | 90th |
| Polk County | A | 87th |
FAQ
How often does power go out in Pettis County?
Between 2015 and 2025, Pettis County recorded 431 outage events, averaging 2.0 hours each.
What is Pettis County's reliability grade?
Pettis County has a Reliability Grade of A, in the 89th national percentile.
What was the worst power outage in Pettis County?
The worst outage on record started September 14, 2023 (Drought), lasting 1 hours and affecting up to 4,953 customers.