CheckYourGrid / Old Lyme, Connecticut
Power outages in Old Lyme, CT
Old Lyme is in New London County, which averaged 21.5 major outage events per year (1,000+ customers, 2+ hours) over 2016-2024 excluding 2019. The median recorded event of any size ran 1.5 hours; the longest tenth ran 7.25 hours or more.
These figures are the county's record from federal outage data (DOE EAGLE-I), window 2016-2024 excluding 2019 (years with incomplete coverage are excluded, listed on the methodology page). Old Lyme-specific counts publish as town-grain tracking accrues; we label every number with the grain it actually has.
The New London County grid record
| Measure (2016-2024 excluding 2019) | Value |
|---|---|
| Major outage events per year (1,000+ customers, 2+ hrs) | 21.5 |
| All recorded outage events per year (any size, incl. single-customer) | 980 |
| Median event duration | 1.5 hrs |
| 90th percentile event duration | 7.25 hrs |
| Share of the year with at least one active outage somewhere in the county | 34.7% |
Source: DOE EAGLE-I outage records, aggregated by CheckYourGrid (event = contiguous period with any customers out, 30-minute gap rule). County-grain: every town in New London County shows these same values. Download the data on the open data page.
Measured in Old Lyme: the February 2026 blizzard
At the mid-afternoon snapshot, 0.98% of Old Lyme's tracked customers were without power, above the statewide 0.57%, placing Old Lyme #44 of 166 measured towns at that moment.
| Utility (snapshot time) | Customers out at the snapshot | Customers served |
|---|---|---|
| Eversource (14:16 EST) | 53 | 5,404 |
A mid-afternoon snapshot (2:16 PM EST, Feb 23, 2026) during the blizzard, not the event peak; statewide outages peaked higher that morning (sources in our provenance record). Customers are metered accounts. Figures are Old Lyme's utility-reported counts as published by Patch.com via its live Datawrapper embed of Eversource and United Illuminating reporting. A measured zero means zero at that moment, not zero for the storm.
Old Lyme at a glance
| County | New London |
| Households (ACS 2021) | 3,100 |
| Population (2020 Census) | 7,619 |
| ZIP code areas | 06371, 06376 |
ZIP code areas are Census ZCTA approximations of USPS ZIP codes; a ZIP can span several towns, and searches by ZIP land on the town covering most of its area.
Common questions
How often does the power go out in Old Lyme, CT?
Old Lyme sits in New London County, which averaged 21.5 major outage events per year (1,000 or more customers, 2 or more hours) over 2016-2024 excluding 2019. Frequency figures are the county's record; one town-grain measured snapshot from the February 2026 blizzard is on this page.
How long do outages last in New London County?
The median recorded event of any size (including small ones) ran 1.5 hours; the longest 10 percent ran 7.25 hours or more (2016-2024 excluding 2019).
Will CheckYourGrid tell me before an outage?
Storm-driven outage-risk alerts are in development, with a public accuracy scorecard. A waitlist opens first; live alerts follow when the pipeline is running.
Know before the lights go out in Old Lyme
We are building storm-driven outage-risk alerts with a public accuracy scorecard. When conditions put New London County at elevated risk, you hear about it first.