New Haven Weather in January

What's the weather like in New Haven (Connecticut) in January 2025?

The climate in New Haven during January can be summarized as cold and a little damp.

January is in the winter in New Haven and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing 2°C (36°F), whilst at night -7°C (20°F) is normal.

New Haven weather averages (imperial / metric)
Daytime temperature 2.1°C 35.7°F
Nightly temperature -6.5°C 20.4°F
Average temperature -2.2°C 28°F
Daily sunshine 6.1 hrs
Avg rainfall 82 mm 3.2 ins
Rainy days 10 days
Sea temperature 6°C 42.8°F
Humidity 66%
Windspeed 19.1kph 12 mph

On average January is the 3rd driest month of the year in New Haven with around 82mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.1 hours of sunshine per day.

January temperatures in New Haven

New Haven average temperature in January

January rainfall

New Haven average rain in January

January hourly sunshine

New Haven average rain in January

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in New Haven in January 2025.

Other monthly averages

Best places to visit in January

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

New Haven weather stats

New Haven weather statistics
Hottest month: July 27.2°C 81°F
Driest month: June 76mm 3ins
Sunniest month: August 9.1hrs
Coldest month: January 1.8°C 35.2°F
Wettest month: November 103mm 4.1ins
Map showing location of New Haven (41.30815, -72.92816) New Haven map pin © Google

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