– 0% of Windsor out 0 customers out in Vermont

Power outage history

Windsor County Vermont

15hours

without power for the average customer in a typical year, 2018–2025

4th most of 14 in Vermont 2.3× the national median

Worst outage on record Dec 17, 2022 56% of customers out · 90% back in 2.2 days

Hours without power, average customer per year 15h / yr State average 8.2 h · national median 6.6 h

Major outages a year 2.1 Peaks over 10% of customers or 50,000 customers

Typical time to restore 90% 17hours Median across major outages, from the peak

Longest single outage 4.7days Nov 26, 2018, over 1% of customers out

Outage hours on storm days 51% Share falling on days with a NOAA storm report here

Worst year 2022 29 hours without power, average customer

Electricity customers 38,107 ORNL customer model · 8 well-covered years

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 Windsor's customers who were without power at that day's worst moment.

20152016201720182019202020212022202320242025

0%100% of customers out

Year by year

Hours in the dark, per customer

2022 was the worst well-recorded year, at 29 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Windsor, hours without power per customer

WindsorUS median countyVermont average

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
Dec 16, 2022	Winter storm	21,318	56%	3.9 d	2.2 d	785k
Nov 26, 2018	No storm report	13,372	35%	4.7 d	19 h	654k
Oct 31, 2019	No storm report	8,359	22%	2.9 d	2.1 d	330k
Mar 14, 2023	Winter storm	8,028	21%	3.4 d	2.2 d	323k
Apr 4, 2024	Winter storm	7,195	19%	2.3 d	46 h	142k
Oct 30, 2017	No storm report	5,166	14%	2.6 d	2.2 d	125k
Jul 23, 2016	Thunderstorms	6,749	18%	47 h	39 h	124k
Apr 4, 2018	No storm report	6,677	18%	43 h	38 h	117k
Mar 30, 2025	Ice storm	4,430	12%	40 h	32 h	98k
Mar 10, 2024	Winter storm	8,329	22%	32 h	11 h	95k
Feb 7, 2020	No storm report	5,261	14%	31 h	23 h	75k
May 4, 2018	Thunderstorms	3,052	8%	41 h	39 h	66k
Dec 23, 2022	Windstorm	5,071	13%	32 h	30 h	59k
Jan 16, 2021	No storm report	7,227	19%	26 h	14 h	49k
Oct 27, 2016	No storm report	3,902	10%	23 h	16 h	40k
Sep 7, 2023	Thunderstorms	2,336	6%	36 h	30 h	40k
Nov 28, 2024	Winter storm	3,964	10%	24 h	18 h	38k
Jul 12, 2022	Thunderstorms	4,843	13%	14 h	12 h	36k
Mar 31, 2017	No storm report	4,880	13%	16 h	11 h	34k
Nov 27, 2023	Winter storm	3,702	10%	16 h	10 h	33k
Nov 3, 2018	No storm report	3,970	10%	12 h	9.5 h	33k
Jul 10, 2023	Flooding	1,983	5%	28 h	19 h	31k
Jun 19, 2024	Thunderstorms	4,213	11%	9.8 h	7.0 h	26k
Jul 13, 2023	Thunderstorms	3,466	9%	22 h	20 h	25k
Feb 29, 2016	No storm report	3,405	9%	15 h	13 h	25k
Oct 17, 2019	No storm report	2,041	5%	17 h	13 h	23k
May 26, 2021	Thunderstorms	5,149	14%	11 h	6.2 h	22k
Apr 3, 2019	No storm report	2,772	7%	14 h	7.8 h	20k
May 17, 2025	Flooding	3,669	10%	8.2 h	2.0 h	20k
Feb 28, 2024	Windstorm	2,070	5%	16 h	13 h	19k

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 Windsor from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

No storm on record 49%
Winter storm 36%
Thunderstorms 7.6%
Ice storm 2.5%
Windstorm 2.1%
Flooding 1.7%
Tropical storm 0.9%

Who keeps the lights on

Utilities serving Windsor

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
Village of Ludlow	VT	–	–	–	–	19k

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

Windham 37 h
Orange 16 h
Windsor (this county) 15 h
Sullivan, NH 13 h
Addison 9.5 h
Grafton, NH 8.0 h
Bennington 7.5 h
Rutland 6.7 h

Across Vermont

Where it is darkest

Hours / yr64+

All Vermont counties →

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 38,107 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 →