Weather in New Haven in December
New Haven, United States averages a high of 5.8°C (42.4°F) and low of -0.1°C (31.8°F) in December, with 10 rain days and 5.9 hours of daily sunshine. Travel score: 50.9/100 (Mixed). The best time to visit New Haven is August.
High
6°C42°F
Low
0°C32°F
🌧️
10
rain days
☀️
5.9
hrs/day sunshine
💧
70%
humidity
51— Mixed
December in New Haven is cold and occasionally wet — mixed conditions — plan indoor alternatives.
What are the average temperatures in New Haven?
How much does it rain in New Haven in December?
New Haven receives an average of 107.8mm of rainfall across 10 rainy days in December. The annual total is 1161mm.
What should I pack for New Haven in December?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Warm coat
Cool weather with highs around 6°C
🧶
Sweaters and warm layers
Layer up for comfort
🧤
Warm gloves
Cold nights around 0°C
🧣
Warm scarf
Protect against cold winds
Traveling to United States in December?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31