January Weather in New Haven

Last updated: March 2, 2024

The weather in New Haven, United States, during January is characterized by an average temperature of 0°C (33°F). Highs can soar to 17°C (63°F), while lows may dip to -15°C (5°F). Typically, the humidity level in New Haven throughout January hovers around 82%.

-15°C (5°F)

Minimum temperature

0°C (33°F)

Average temperature

17°C (63°F)

Maximum temperature

82%

Humidity

Precipitation and Sunshine hours

In January, New Haven averages 74 mm (2.9 inches) of rainfall, typically over the course of 7 rainy days. The month enjoys an average of 9 hours 49 minutes of daylight, with the sun shining for approximately 4 hours 9 minutes each day. Additionally, there is a 29% probability of sunny days during this period.

74 mm (2.9 inches)

Precipitation

7 rainy days

Rainy days

4 hours 9 minutes

Sunshine hours

29%

Chance of sun

UV Index

In January, the UV Index in New Haven reaches a maximum of 3, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 30 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 0 1 1 2 3 3 3 2 2 1 1 0 0
Exposure Low Moderate Low
Time to burn 45 min 30 min 45 min

Compare New Haven's Climate with Cities Worldwide