New Jersey, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and Climate
Trenton, NJ

A full aerial view of Trenton, New Jersey, with the George Washington statue
A full aerial view of Trenton, New Jersey, with the George Washington statue
  • The average high temperature in January: 39°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (39°F).

  • The average low temperature in January: 23.2°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

  • The average rainfall in January: 3.2"

The wettest month (with the highest rainfall) is July (5").
The driest month (with the lowest rainfall) is February (2.3").

  • The average rainfall days in January: 10 days

Months with the highest number of rainy days are March, April, May and December (11 days).
Months with the lowest number of rainy days are September and October (8 days).

  • The average daylight in January: 10h

Months with the longest days are June and July (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9h).

  • The average sunshine in January: 5.3h

The month with most sunshine is June (Average sunshine: 8.8h).
The month with least sunshine is December (Average sunshine: 4.5h).

  • The average UV index in January: 2

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January, November and December (UV index 2).