Addison 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 23, 2022 | 26 hrs | 9,890 (57%) | Winter Storm |
| Jan 10, 2024 | 62 hrs | 7,286 (42%) | Winter Storm |
| Jul 23, 2016 | 28 hrs | 7,133 (41%) | Thunderstorm Wind |
| Dec 24, 2022 | 62 hrs | 6,497 (38%) | High Wind |
| Oct 30, 2017 | 48 hrs | 6,476 (37%) | Tropical Storm Philippe |
Over the 12 years from 2014 to 2025, Addison County recorded 856 distinct power outage events, averaging 2.6 hours per event.
The single worst outage on record in Addison County started December 23, 2022 (Winter Storm), lasting 26 hours and leaving up to 9,890 customers without power (57% of the county) at its peak.
November has historically been the worst month for outages in Addison County, with 115 events recorded during that month across the dataset.
Based on this history, Addison County earns a Reliability Grade of F, placing it in the 15th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Addison County's outage profile
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Similar counties in Vermont
Counties with the closest reliability grade and national percentile to Addison County.
| County | Grade | National percentile |
|---|---|---|
| Windsor County | F | 11th |
| Essex County | F | 9th |
| Orange County | F | 7th |
| Orleans County | D | 24th |
| Rutland County | D | 25th |
FAQ
How often does power go out in Addison County?
Between 2014 and 2025, Addison County recorded 856 outage events, averaging 2.6 hours each.
What is Addison County's reliability grade?
Addison County has a Reliability Grade of F, in the 15th national percentile.
What was the worst power outage in Addison County?
The worst outage on record started December 23, 2022 (Winter Storm), lasting 26 hours and affecting up to 9,890 customers.