Calhoun CountyPower Outage History
What this grade means
Bottom 20% least reliable nationally — frequent and/or long outages. This county ranks in the least reliable fifth of all US counties in our dataset: some combination of frequent outages, long restoration times, or customers affected puts it near the bottom nationally. Backup power is worth prioritizing here rather than treating it as optional.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 16, 2021 | 50 hrs | 5,536 (51%) | Tropical Storm Fred |
| Feb 7, 2017 | 4 hrs | 4,921 (46%) | Thunderstorm Wind |
| Feb 8, 2017 | 7 hrs | 4,728 (44%) | Thunderstorm Wind |
| Jan 9, 2024 | 14 hrs | 3,755 (35%) | Tornado |
| Jun 16, 2023 | 10 hrs | 3,583 (33%) | Thunderstorm Wind |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Calhoun County, Florida that day.
Over the 12 years from 2014 to 2025, Calhoun County recorded 625 distinct power outage events, averaging 2.7 hours per event.
The single worst outage on record in Calhoun County started August 16, 2021 (Tropical Storm Fred), lasting 50 hours and leaving up to 5,536 customers without power (51% of the county) at its peak.
July has historically been the worst month for outages in Calhoun County, with 87 events recorded during that month across the dataset.
Based on this history, Calhoun County earns a Reliability Grade of F, placing it in the 11th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Florida
Counties with the closest reliability grade and national percentile to Calhoun County.
| County | Grade | National percentile |
|---|---|---|
| Jackson County | F | 11th |
| Washington County | F | 10th |
| Columbia County | F | 10th |
| DeSoto County | F | 12th |
| Levy County | F | 9th |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Calhoun County?
Between 2014 and 2025, Calhoun County recorded 625 outage events, averaging 2.7 hours each.
What is Calhoun County's reliability grade?
Calhoun County has a Reliability Grade of F, in the 11th national percentile.
What was the worst power outage in Calhoun County?
The worst outage on record started August 16, 2021 (Tropical Storm Fred), lasting 50 hours and affecting up to 5,536 customers.