Montgomery County Power Outage History
2014–2025 · 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 |
|---|---|---|---|
| Nov 13, 2020 | 3 hrs | 3,497 (36%) | Unnamed event |
| Oct 25, 2022 | 5 hrs | 1,875 (20%) | Unnamed event |
| Jun 25, 2024 | 14 hrs | 1,756 (18%) | Thunderstorm Wind |
| Jun 26, 2015 | 18 hrs | 1,704 (18%) | Flash Flood |
| Nov 24, 2020 | 2 hrs | 1,642 (17%) | Unnamed event |
Over the 12 years from 2014 to 2025, Montgomery County recorded 421 distinct power outage events, averaging 2.5 hours per event.
The single worst outage on record in Montgomery County started November 13, 2020, lasting 3 hours and leaving up to 3,497 customers without power (36% of the county) at its peak.
June has historically been the worst month for outages in Montgomery County, with 57 events recorded during that month across the dataset.
Based on this history, Montgomery County earns a Reliability Grade of A, placing it in the 81st percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Montgomery 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 Montgomery County.
| County | Grade | National percentile |
|---|---|---|
| Taney County | A | 82nd |
| Cooper County | A | 80th |
| Howell County | A | 80th |
| Ste. Genevieve County | B | 80th |
| Pike County | A | 83rd |
FAQ
How often does power go out in Montgomery County?
Between 2014 and 2025, Montgomery County recorded 421 outage events, averaging 2.5 hours each.
What is Montgomery County's reliability grade?
Montgomery County has a Reliability Grade of A, in the 81st national percentile.
What was the worst power outage in Montgomery County?
The worst outage on record started November 13, 2020, lasting 3 hours and affecting up to 3,497 customers.