Windsor County Power Outage History
2014–2025 · Vermont
Bottom 20% least reliable nationally — frequent and/or long outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Dec 16, 2022 | 95 hrs | 21,318 (56%) | Winter Storm |
| Nov 27, 2018 | 33 hrs | 13,372 (35%) | Unnamed event |
| Nov 28, 2018 | 82 hrs | 11,000 (29%) | Unnamed event |
| Nov 1, 2019 | 84 hrs | 8,359 (22%) | Unnamed event |
| Mar 10, 2024 | 37 hrs | 8,329 (22%) | Winter Storm |
Over the 12 years from 2014 to 2025, Windsor County recorded 1,041 distinct power outage events, averaging 3.1 hours per event.
The single worst outage on record in Windsor County started December 16, 2022 (Winter Storm), lasting 95 hours and leaving up to 21,318 customers without power (56% of the county) at its peak.
November has historically been the worst month for outages in Windsor County, with 128 events recorded during that month across the dataset.
Based on this history, Windsor County earns a Reliability Grade of F, placing it in the 11th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Vermont
Counties with the closest reliability grade and national percentile to Windsor County.
| County | Grade | National percentile |
|---|---|---|
| Essex County | F | 9th |
| Addison County | F | 15th |
| Orange County | F | 7th |
| Windham County | F | 2nd |
| Orleans County | D | 24th |
FAQ
How often does power go out in Windsor County?
Between 2014 and 2025, Windsor County recorded 1,041 outage events, averaging 3.1 hours each.
What is Windsor County's reliability grade?
Windsor County has a Reliability Grade of F, in the 11th national percentile.
What was the worst power outage in Windsor County?
The worst outage on record started December 16, 2022 (Winter Storm), lasting 95 hours and affecting up to 21,318 customers.