Dukes CountyPower Outage History
What this grade means
(How grades are calculated)Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
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Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Mar 2, 2018 | 57 hrs | 15,182 (42%) | High Wind |
| Oct 27, 2021 | 21 hrs | 13,854 (38%) | High Wind |
| Oct 27, 2021 | 13 hrs | 13,414 (37%) | High Wind |
| Aug 11, 2015 | 1 hrs | 12,988 (36%) | Unnamed event |
| Jan 27, 2022 | 1 hrs | 12,987 (36%) | Blizzard |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Dukes County, Massachusetts that day.
Over the 12 years from 2014 to 2025, Dukes County recorded 230 distinct power outage events, averaging 3.0 hours per event.
The single worst outage on record in Dukes County started March 2, 2018 (High Wind), lasting 57 hours and leaving up to 15,182 customers without power (42% of the county) at its peak.
January has historically been the worst month for outages in Dukes County, with 24 events recorded during that month across the dataset.
Based on this history, Dukes County earns a Reliability Grade of B, placing it in the 67th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Massachusetts
Counties with the closest reliability grade and national percentile to Dukes County.
| County | Grade | National percentile |
|---|---|---|
| Middlesex County | B | 64th |
| Norfolk County | B | 73rd |
| Bristol County | B | 78th |
| Worcester County | C | 55th |
| Hampden County | B | 79th |
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 Dukes County?
Between 2014 and 2025, Dukes County recorded 230 outage events, averaging 3.0 hours each.
What is Dukes County's reliability grade?
Dukes County has a Reliability Grade of B, in the 67th national percentile.
What was the worst power outage in Dukes County?
The worst outage on record started March 2, 2018 (High Wind), lasting 57 hours and affecting up to 15,182 customers.