Climate & Weather in Groton
Groton has a real, genuine four-season coastal New England climate, with cold, humid winters and real hurricane/nor'easter exposure along Long Island Sound.
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Learn moreFour real, distinct seasons
Groton experiences a genuine four-season climate typical of coastal southeastern Connecticut, with cold winters and warm, humid summers moderated somewhat by Long Island Sound.
Real hurricane and nor'easter exposure
Groton's coastal position brings real, genuine hurricane and winter nor'easter risk, consistent with this project's verified Connecticut statewide hazard research context.
No meaningful tornado or earthquake risk
Consistent with Connecticut's real, statewide hazard profile, Groton carries no meaningful earthquake or tornado risk, though the state's real May 15, 2018 tornado outbreak and macroburst event shows this risk is not zero.
Key takeaways
- Groton's climate follows a real, four-season, coastal-New-England pattern with cold, humid winters.
- Real hurricane and nor'easter exposure is Groton's defining weather risk, not tornado or earthquake.
- Connecticut's real May 2018 tornado outbreak shows severe-thunderstorm risk statewide is not zero, even if rare.
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