Deer Lodge CountyPower Outage History
What this grade means
(How grades are calculated)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 |
|---|---|---|---|
| Oct 18, 2020 | 4 hrs | 6,027 (89%) | Winter Weather |
| Jan 13, 2021 | 14 hrs | 1,679 (25%) | High Wind |
| Jun 22, 2020 | 2 hrs | 1,669 (25%) | Unnamed event |
| Oct 13, 2020 | 8 hrs | 1,649 (24%) | Unnamed event |
| Dec 11, 2020 | 2 hrs | 1,445 (21%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Deer Lodge County, Montana that day.
Over the 6 years from 2020 to 2025, Deer Lodge County recorded 227 distinct power outage events, averaging 2.5 hours per event.
The single worst outage on record in Deer Lodge County started October 18, 2020 (Winter Weather), lasting 4 hours and leaving up to 6,027 customers without power (89% of the county) at its peak.
August has historically been the worst month for outages in Deer Lodge County, with 32 events recorded during that month across the dataset.
Based on this history, Deer Lodge County earns a Reliability Grade of A, placing it in the 83rd percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Montana
Counties with the closest reliability grade and national percentile to Deer Lodge County.
| County | Grade | National percentile |
|---|---|---|
| Richland County | A | 83rd |
| Beaverhead County | A | 84th |
| Fergus County | A | 82nd |
| Broadwater County | A | 81st |
| Daniels County | A | 81st |
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 Deer Lodge County?
Between 2020 and 2025, Deer Lodge County recorded 227 outage events, averaging 2.5 hours each.
What is Deer Lodge County's reliability grade?
Deer Lodge County has a Reliability Grade of A, in the 83rd national percentile.
What was the worst power outage in Deer Lodge County?
The worst outage on record started October 18, 2020 (Winter Weather), lasting 4 hours and affecting up to 6,027 customers.