Monroe County Power Outage History
2014–2025 · Florida
Worse than average — more frequent or longer 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 |
|---|---|---|---|
| Sep 9, 2017 | 47 hrs | 51,336 (49%) | Hurricane Irma |
| Dec 14, 2023 | 4 hrs | 46,249 (45%) | Unnamed event |
| Sep 11, 2017 | 3 hrs | 43,452 (42%) | Hurricane Irma |
| Sep 11, 2017 | 2 hrs | 43,452 (42%) | Hurricane Irma |
| Sep 11, 2017 | 1 hrs | 43,452 (42%) | Hurricane Irma |
Over the 12 years from 2014 to 2025, Monroe County recorded 853 distinct power outage events, averaging 1.6 hours per event.
The single worst outage on record in Monroe County started September 9, 2017 (Hurricane Irma), lasting 47 hours and leaving up to 51,336 customers without power (49% of the county) at its peak.
August has historically been the worst month for outages in Monroe County, with 95 events recorded during that month across the dataset.
Based on this history, Monroe County earns a Reliability Grade of D, placing it in the 32nd percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Florida
Counties with the closest reliability grade and national percentile to Monroe County.
| County | Grade | National percentile |
|---|---|---|
| Union County | D | 32nd |
| St. Johns County | D | 33rd |
| Brevard County | D | 33rd |
| Clay County | D | 34th |
| Bradford County | D | 34th |
FAQ
How often does power go out in Monroe County?
Between 2014 and 2025, Monroe County recorded 853 outage events, averaging 1.6 hours each.
What is Monroe County's reliability grade?
Monroe County has a Reliability Grade of D, in the 32nd national percentile.
What was the worst power outage in Monroe County?
The worst outage on record started September 9, 2017 (Hurricane Irma), lasting 47 hours and affecting up to 51,336 customers.