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New Haven

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New Haven Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

New Haven year round climate

  • Spring (March–May): Average 43–61°F, mild but with possible showers; March and April are rainier. Typical activities: Outdoor walks, flower viewing. Suggested clothing: Light jacket, long-sleeved shirt, comfortable shoes.
  • Summer (June–August): Average 70–78°F, warm and humid with occasional thunderstorms. July is the rainier month. Typical activities: Picnics, outdoor sports, museum visits. Suggested clothing: Light and breathable clothing, sun hat, sunglasses.
  • Autumn (September–November): Average 48–68°F, pleasant and cool and dry, with decreasing rainfall. Typical activities: Outdoor activities, fall foliage viewing (if applicable). Suggested clothing: Comfortable long-sleeved shirts, light jacket.
  • Winter (December–February): Average 36–39°F, cold and humid with more rainfall, especially in December. Typical activities: Indoor activities, museum visits, enjoying hot drinks. Suggested clothing: Warm coat, scarf, hat, gloves.

New Haven climatological average

Annual average temperature: approx. 55.4°F / Annual rainfall: approx. 1165 mm / Summer humidity: 65%–75% / Rainiest month: December

New Haven monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
36.1°F
120.3
February
37°F
55.7
March
43.9°F
141.3
April
52.2°F
84.7
May
61.7°F
78.7
June
70.3°F
68.7
July
78.1°F
130
August
75.6°F
86.3
September
68.5°F
118.7
October
58.5°F
57.3
November
48.7°F
72.3
December
39.7°F
151.7

New Haven weather for the next seven days

4/29
Wednesday
Patchy rain nearby
65.1°F/42.1°F
4/30
Thursday
Moderate rain
53.1°F/46.6°F
5/1
Friday
Sunny
59.1°F/43.9°F
5/2
Saturday
Patchy rain nearby
55.1°F/43.6°F
5/3
Sunday
Patchy rain nearby
56.9°F/41°F
5/4
Monday
Patchy rain nearby
60.3°F/40.8°F
5/5
Tuesday
Patchy rain nearby
59.4°F/51.5°F