Lamoille County Power Outage History
2014–2025 · Vermont
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Oct 30, 2017 | 47 hrs | 6,816 (37%) | Tropical Storm Philippe |
| Apr 4, 2024 | 3 hrs | 3,971 (22%) | Winter Storm |
| Nov 1, 2019 | 51 hrs | 3,767 (21%) | Flash Flood |
| Aug 9, 2024 | 64 hrs | 3,423 (19%) | Unnamed event |
| Dec 1, 2016 | 2 hrs | 3,389 (18%) | Winter Weather |
Over the 12 years from 2014 to 2025, Lamoille County recorded 528 distinct power outage events, averaging 3.0 hours per event.
The single worst outage on record in Lamoille County started October 30, 2017 (Tropical Storm Philippe), lasting 47 hours and leaving up to 6,816 customers without power (37% of the county) at its peak.
November has historically been the worst month for outages in Lamoille County, with 157 events recorded during that month across the dataset.
Based on this history, Lamoille County earns a Reliability Grade of C, placing it in the 41st percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Lamoille County's outage profile
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Similar counties in Vermont
Counties with the closest reliability grade and national percentile to Lamoille County.
| County | Grade | National percentile |
|---|---|---|
| Franklin County | C | 42nd |
| Grand Isle County | D | 38th |
| Caledonia County | D | 35th |
| Bennington County | D | 28th |
| Washington County | D | 27th |
FAQ
How often does power go out in Lamoille County?
Between 2014 and 2025, Lamoille County recorded 528 outage events, averaging 3.0 hours each.
What is Lamoille County's reliability grade?
Lamoille County has a Reliability Grade of C, in the 41st national percentile.
What was the worst power outage in Lamoille County?
The worst outage on record started October 30, 2017 (Tropical Storm Philippe), lasting 47 hours and affecting up to 6,816 customers.