Litchfield County Power Outage History
2014–2025 · Connecticut
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 |
|---|---|---|---|
| Aug 4, 2020 | 182 hrs | 66,462 (65%) | Tropical Storm Isaias |
| Dec 23, 2022 | 65 hrs | 19,088 (19%) | High Wind |
| May 15, 2018 | 16 hrs | 17,434 (17%) | Unnamed event |
| Mar 24, 2025 | 4 hrs | 16,582 (16%) | Unnamed event |
| Jun 27, 2024 | 47 hrs | 14,008 (14%) | Heat |
Over the 12 years from 2014 to 2025, Litchfield County recorded 1,162 distinct power outage events, averaging 3.0 hours per event.
The single worst outage on record in Litchfield County started August 4, 2020 (Tropical Storm Isaias), lasting 182 hours and leaving up to 66,462 customers without power (65% of the county) at its peak.
July has historically been the worst month for outages in Litchfield County, with 138 events recorded during that month across the dataset.
Based on this history, Litchfield County earns a Reliability Grade of F, placing it in the 18th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Connecticut
Counties with the closest reliability grade and national percentile to Litchfield County.
| County | Grade | National percentile |
|---|---|---|
| New London County | F | 19th |
| Fairfield County | F | 19th |
| Windham County | F | 15th |
| Middlesex County | D | 21st |
| Tolland County | D | 26th |
FAQ
How often does power go out in Litchfield County?
Between 2014 and 2025, Litchfield County recorded 1,162 outage events, averaging 3.0 hours each.
What is Litchfield County's reliability grade?
Litchfield County has a Reliability Grade of F, in the 18th national percentile.
What was the worst power outage in Litchfield County?
The worst outage on record started August 4, 2020 (Tropical Storm Isaias), lasting 182 hours and affecting up to 66,462 customers.