Fremont County Power Outage History
2015–2025 · Colorado
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 |
|---|---|---|---|
| Sep 9, 2018 | 3 hrs | 12,228 (63%) | Unnamed event |
| Oct 28, 2025 | 0 hrs | 5,380 (28%) | Unnamed event |
| Jul 14, 2017 | 3 hrs | 5,179 (27%) | Unnamed event |
| Jun 24, 2017 | 1 hrs | 5,167 (27%) | Unnamed event |
| Jun 25, 2017 | 1 hrs | 5,166 (27%) | Unnamed event |
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, 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).
Sized for Fremont County's outage profile
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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 |
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, lasting 3 hours and affecting up to 12,228 customers.