Fremont CountyPower Outage History
What this grade means
Top 20% most reliable nationally — infrequent, short outages. This county ranks in the most reliable fifth of all US counties in our dataset, based on 12 years of real DOE outage records: outages happen less often here, and when they do occur they tend to be resolved quickly compared to the rest of the country. Baseline outage risk is low, though a severe local storm can still occasionally cause a longer-than-usual outage regardless of the long-term track record.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Sep 9, 2018 | 3 hrs | 12,228 (63%) | Flash Flood |
| Oct 28, 2025 | <1 hr | 5,380 (28%) | Unnamed event |
| Jul 14, 2017 | 3 hrs | 5,179 (27%) | Unnamed event |
| Jun 24, 2017 | <1 hr | 5,167 (27%) | Unnamed event |
| Jun 25, 2017 | 1 hrs | 5,166 (27%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Fremont County, Colorado that day.
Over the 11 years from 2015 to 2025, Fremont County recorded 238 distinct power outage events, averaging 1.7 hours per event.
The single worst outage on record in Fremont County started September 9, 2018 (Flash Flood), lasting 3 hours and leaving up to 12,228 customers without power (63% of the county) at its peak.
July has historically been the worst month for outages in Fremont County, with 49 events recorded during that month across the dataset.
Based on this history, Fremont County earns a Reliability Grade of A, placing it in the 83rd percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Colorado
Counties with the closest reliability grade and national percentile to Fremont County.
| County | Grade | National percentile |
|---|---|---|
| Mesa County | A | 83rd |
| Larimer County | A | 82nd |
| Pueblo County | A | 84th |
| Moffat County | A | 84th |
| Eagle County | A | 84th |
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 Fremont County?
Between 2015 and 2025, Fremont County recorded 238 outage events, averaging 1.7 hours each.
What is Fremont County's reliability grade?
Fremont County has a Reliability Grade of A, in the 83rd national percentile.
What was the worst power outage in Fremont County?
The worst outage on record started September 9, 2018 (Flash Flood), lasting 3 hours and affecting up to 12,228 customers.