New Haven Weather in December

Thinking of visiting New Haven in December? Expect low temperatures reaching 7°C (45°F) during the day, dropping to -1°C (30°F) at night, and note that quite a bit of snow/rainfall is likely.

Rainfall in New Haven in December

Analyzing past climate data, one can expect approximately 12 days of snow/rain, averaging 127 mm (5 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in New Haven in December

Expect highs of 7°C (45°F) in New Haven in December, with nights dropping to around -1°C (30°F). During December, you'll experience the winter season. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. Nights drop below freezing to -1°C (30°F). An extra blanket is worth packing if you're unsure about the heating where you're staying.

Sunshine in New Haven in December

The area experiences a moderate amount of sunshine, with approximately 139 hours of sunlight expected. This means a decent mix of sun and overcast.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit New Haven. Our weather planner can help you explore destinations with more pleasant weather conditions.

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Check the conditions for any month of the year.

• January
• February
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• May
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• October
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• December

For a detailed overview over the year and the best time to visit the United States of America, check out our New Haven's climate page.

New Haven Temperature in December

Min Temperature -1°C (30°F)  

Max Temperature 7°C (45°F)  

Chance of Rain 40%  

Precipitation 127 mm (5 in)  

Rainy days 12 days  

Humidity 68% *  

Sunshine 139 hours *  

Percentage Sunshine 49% *  

* Data from: Hartford, the United States of America (54 KM, 33 Miles).

What to Wear in New Haven in December

Dress warmly and in layers for your trip to New Haven in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in New Haven in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

4/10

Walking

4/10

Camping

1/10

Outdoor sports

4/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our New Haven's climate page.

More climate data for New Haven

Temperature Rainfall Sunshine Humidity

See the full New Haven climate overview or explore weather in the United States of America.