Power outage history
Lamoille County Vermont
5.2hours
without power for the average customer in a typical year, 2018–2025
12th most of 14 in Vermont 21% below the national median
Every day since 2015
Eleven years, one night at a time
Each cell is a day. The brighter it is, the larger the share of Lamoille's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2024 was the worst well-recorded year, at 8.7 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Lamoille, hours without power per customer
The record
The biggest outages since 2015
Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.
| Began | Storm | Peak out | Share | Lasted | 90% restored | Customer-hours |
|---|---|---|---|---|---|---|
| Oct 30, 2017 | Windstorm | 6,816 | 39% | 4.7 d | 3.3 d | 170k |
| Aug 9, 2024 | Hurricane Debby | 3,423 | 20% | 2.6 d | 47 h | 72k |
| Dec 23, 2022 | Windstorm | 2,941 | 17% | 2.4 d | 44 h | 69k |
| May 4, 2018 | No storm report | 3,009 | 17% | 41 h | 33 h | 54k |
| Nov 1, 2019 | Windstorm | 3,767 | 22% | 38 h | 27 h | 48k |
| Jan 9, 2024 | Winter storm | 2,302 | 13% | 2.5 d | 31 h | 33k |
| Nov 28, 2018 | Winter storm | 1,143 | 7% | 2.2 d | 27 h | 29k |
| Nov 24, 2025 | No storm report | 2,186 | 12% | 8.2 h | 3.5 h | 17k |
| Apr 19, 2022 | Winter storm | 1,858 | 11% | 21 h | 6.8 h | 17k |
| Nov 23, 2025 | No storm report | 1,754 | 10% | 9.8 h | 21 h | 16k |
| Dec 4, 2023 | Winter storm | 1,995 | 11% | 14 h | 4.8 h | 16k |
| Nov 27, 2023 | Winter storm | 1,689 | 10% | 17 h | 3.0 h | 15k |
| Jan 13, 2024 | Windstorm | 1,237 | 7% | 29 h | 22 h | 13k |
| Dec 11, 2023 | Winter storm | 1,017 | 6% | 29 h | 29 h | 12k |
| Dec 19, 2025 | Windstorm | 1,506 | 9% | 14 h | 11 h | 11k |
| Nov 21, 2025 | No storm report | 1,303 | 7% | 8.5 h | 14 h | 10k |
| Oct 12, 2024 | No storm report | 3,338 | 19% | 9.8 h | 4.5 h | 9.6k |
| Nov 20, 2025 | No storm report | 1,297 | 7% | 8.5 h | 16 h | 9.4k |
| Jul 11, 2023 | No storm report | 573 | 3% | 22 h | – | 9.1k |
| Dec 14, 2016 | No storm report | 2,293 | 13% | 3.5 h | 14 h | 8.0k |
| May 8, 2019 | No storm report | 2,293 | 13% | 2.8 h | 8.5 h | 6.3k |
| Apr 4, 2024 | Winter storm | 3,971 | 23% | 6.5 h | 48 min | 6.0k |
| Dec 11, 2021 | Windstorm | 787 | 5% | 12 h | – | 5.1k |
| Dec 1, 2016 | No storm report | 3,389 | 19% | 2.8 h | 1.5 h | 5.1k |
| Nov 27, 2018 | Winter storm | 1,782 | 10% | 11 h | 7.0 h | 4.9k |
| Feb 23, 2020 | No storm report | 1,404 | 8% | 3.0 h | 3.2 h | 4.2k |
| Oct 23, 2016 | No storm report | 1,013 | 6% | 6.2 h | 7.2 h | 3.7k |
| Jul 2, 2025 | No storm report | 673 | 4% | 5.5 h | – | 3.6k |
| Nov 13, 2015 | No storm report | 3,345 | 19% | 1.5 h | 1.2 h | 3.6k |
| Mar 23, 2019 | Winter storm | 682 | 4% | 5.5 h | – | 3.5k |
After the peak
How fast the lights come back
Each line is one major outage, from its peak. The amber line is the typical path.
When it happens
The outage clock
Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.
What was happening
Weather behind the outages
Each outage is matched to NOAA storm reports for Lamoille from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 38%
- Windstorm 25%
- Winter storm 24%
- Tropical storm 12%
- Thunderstorms 1.3%
Who keeps the lights on
Utilities serving Lamoille
As each utility reports to the Energy Information Administration for its whole Vermont territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Green Mountain Power Corp | Investor Owned | 265 | 190 | 1.75 | 23.3 | 228k |
| Vermont Electric Cooperative, Inc | Cooperative | 251 | 151 | 2.06 | 24.3 | 36k |
| Town of Stowe | VT | 262 | 262 | 1.80 | 19.4 | 24k |
| Town of Hardwick | VT | 17 | – | 6.00 | 17.5 | 24k |
| Village of Morrisville | VT | 279 | – | 2.71 | 15.5 | 21k |
| Village of Hyde Park | VT | 3 | – | 0.20 | – | 8.2k |
| Village of Johnson | VT | – | – | – | – | 5.1k |
EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.
Next door
Neighbouring counties
- Orleans 11 h
- Washington 7.7 h
- Caledonia 7.3 h
- Lamoille (this county) 5.2 h
- Franklin 4.5 h
- Chittenden 2.3 h
About these numbers
Notes
Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 17,497 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →