Stone 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 15, 2023 | 30 hrs | 9,723 (52%) | Thunderstorm Wind |
| May 14, 2019 | 1 hrs | 7,123 (38%) | Unnamed event |
| Jul 31, 2023 | 41 hrs | 4,789 (25%) | Thunderstorm Wind |
| Apr 29, 2021 | 2 hrs | 4,140 (22%) | Thunderstorm Wind |
| Jul 31, 2023 | 2 hrs | 3,557 (19%) | Thunderstorm Wind |
Over the 11 years from 2015 to 2025, Stone County recorded 967 distinct power outage events, averaging 2.1 hours per event.
The single worst outage on record in Stone County started July 15, 2023 (Thunderstorm Wind), lasting 30 hours and leaving up to 9,723 customers without power (52% of the county) at its peak.
May has historically been the worst month for outages in Stone County, with 114 events recorded during that month across the dataset.
Based on this history, Stone County earns a Reliability Grade of B, placing it in the 62nd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Stone County's outage profile
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Outage-prep kit
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Similar counties in Missouri
Counties with the closest reliability grade and national percentile to Stone County.
| County | Grade | National percentile |
|---|---|---|
| Henry County | B | 62nd |
| New Madrid County | B | 61st |
| Madison County | B | 60th |
| Ripley County | B | 63rd |
| Barry County | B | 63rd |
FAQ
How often does power go out in Stone County?
Between 2015 and 2025, Stone County recorded 967 outage events, averaging 2.1 hours each.
What is Stone County's reliability grade?
Stone County has a Reliability Grade of B, in the 62nd national percentile.
What was the worst power outage in Stone County?
The worst outage on record started July 15, 2023 (Thunderstorm Wind), lasting 30 hours and affecting up to 9,723 customers.