Ralls County Power Outage History
2015–2025 · Missouri
Better than average — fewer or shorter outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jul 10, 2021 | 42 hrs | 1,718 (20%) | Thunderstorm Wind |
| Jul 21, 2019 | 5 hrs | 1,209 (14%) | Thunderstorm Wind |
| Apr 20, 2025 | 9 hrs | 1,197 (14%) | Unnamed event |
| Aug 12, 2021 | 4 hrs | 1,074 (13%) | Unnamed event |
| May 4, 2020 | 9 hrs | 1,053 (12%) | Unnamed event |
Over the 11 years from 2015 to 2025, Ralls County recorded 444 distinct power outage events, averaging 1.8 hours per event.
The single worst outage on record in Ralls County started July 10, 2021 (Thunderstorm Wind), lasting 42 hours and leaving up to 1,718 customers without power (20% of the county) at its peak.
June has historically been the worst month for outages in Ralls County, with 62 events recorded during that month across the dataset.
Based on this history, Ralls County earns a Reliability Grade of B, placing it in the 78th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Ralls County's outage profile
See more picks in our Best Small Power Stations (Under 1,000Wh) roundup.
Outage-prep kit
See our outage-prep guides.
Similar counties in Missouri
Counties with the closest reliability grade and national percentile to Ralls County.
| County | Grade | National percentile |
|---|---|---|
| Franklin County | B | 78th |
| Harrison County | B | 78th |
| Jasper County | B | 78th |
| Greene County | B | 77th |
| Ste. Genevieve County | B | 80th |
FAQ
How often does power go out in Ralls County?
Between 2015 and 2025, Ralls County recorded 444 outage events, averaging 1.8 hours each.
What is Ralls County's reliability grade?
Ralls County has a Reliability Grade of B, in the 78th national percentile.
What was the worst power outage in Ralls County?
The worst outage on record started July 10, 2021 (Thunderstorm Wind), lasting 42 hours and affecting up to 1,718 customers.