Broomfield 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 |
|---|---|---|---|
| Jan 8, 2025 | 1 hrs | 19,378 (50%) | Winter Weather |
| Jul 16, 2017 | 7 hrs | 9,876 (25%) | Unnamed event |
| Apr 18, 2025 | <1 hr | 7,466 (19%) | Unnamed event |
| Jul 19, 2019 | <1 hr | 6,756 (17%) | Hail |
| Aug 28, 2022 | 2 hrs | 6,296 (16%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Broomfield County, Colorado that day.
Over the 12 years from 2014 to 2025, Broomfield County recorded 240 distinct power outage events, averaging 1.9 hours per event.
The single worst outage on record in Broomfield County started January 8, 2025 (Winter Weather), lasting 1 hours and leaving up to 19,378 customers without power (50% of the county) at its peak.
August has historically been the worst month for outages in Broomfield County, with 29 events recorded during that month across the dataset.
Based on this history, Broomfield County earns a Reliability Grade of A, placing it in the 85th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Colorado
Counties with the closest reliability grade and national percentile to Broomfield County.
| County | Grade | National percentile |
|---|---|---|
| Delta County | A | 85th |
| Custer County | A | 84th |
| Saguache County | A | 85th |
| Eagle County | A | 84th |
| Moffat 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 Broomfield County?
Between 2014 and 2025, Broomfield County recorded 240 outage events, averaging 1.9 hours each.
What is Broomfield County's reliability grade?
Broomfield County has a Reliability Grade of A, in the 85th national percentile.
What was the worst power outage in Broomfield County?
The worst outage on record started January 8, 2025 (Winter Weather), lasting 1 hours and affecting up to 19,378 customers.