Carlton CountyPower Outage History
What this grade means
Average — typical outage frequency and duration nationally. This county sits in the middle of the national distribution — its outage frequency and duration over the past 12 years are close to the nationwide median, neither notably better nor worse than most other US counties. A typical amount of backup-power preparedness is reasonable here.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Dec 15, 2022 | 88 hrs | 7,550 (33%) | Ice Storm |
| Sep 19, 2025 | 2 hrs | 5,728 (25%) | Unnamed event |
| Feb 28, 2020 | 2 hrs | 4,706 (21%) | Unnamed event |
| Mar 29, 2020 | 37 hrs | 4,527 (20%) | Heavy Snow |
| Aug 15, 2020 | 33 hrs | 4,418 (20%) | Thunderstorm Wind |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Carlton County, Minnesota that day.
Over the 12 years from 2014 to 2025, Carlton County recorded 559 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Carlton County started December 15, 2022 (Ice Storm), lasting 88 hours and leaving up to 7,550 customers without power (33% of the county) at its peak.
October has historically been the worst month for outages in Carlton County, with 80 events recorded during that month across the dataset.
Based on this history, Carlton County earns a Reliability Grade of C, placing it in the 50th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Minnesota
Counties with the closest reliability grade and national percentile to Carlton County.
| County | Grade | National percentile |
|---|---|---|
| Hubbard County | C | 48th |
| Koochiching County | C | 47th |
| Morrison County | C | 53rd |
| Crow Wing County | C | 54th |
| Washington County | C | 55th |
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 Carlton County?
Between 2014 and 2025, Carlton County recorded 559 outage events, averaging 2.4 hours each.
What is Carlton County's reliability grade?
Carlton County has a Reliability Grade of C, in the 50th national percentile.
What was the worst power outage in Carlton County?
The worst outage on record started December 15, 2022 (Ice Storm), lasting 88 hours and affecting up to 7,550 customers.