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New Haven, CT Climate

1991 to 2020 normals at New Haven Tweed AP, 2.8 mi from the center of New Haven, elevation 3 ft.

Average weather by month

Select a month for daily normals and last year's weather

MonthRangeHighLowPrecip.Snow
January38°23°2.72 in--
February40°24°2.84 in--
March47°30°3.66 in--
April58°39°4.19 in--
May68°49°3.54 in--
June76°59°3.47 in--
July82°66°3.36 in--
August81°65°3.55 in--
September75°57°4.03 in--
October64°46°3.78 in--
November53°36°3.12 in--
December44°29°3.53 in--
Year60°41.79 in--

Frequently asked questions

What is the hottest month in New Haven, CT?
July is the warmest month, with a normal high of 82°F at New Haven Tweed AP.
What is the coldest month in New Haven, CT?
January is the coldest month, with a normal low of 23°F.
What is the wettest month in New Haven, CT?
April has the most precipitation on average, about 4.19 inches.