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

December weather forecast and Climate
Trenton, NJ

  • Average high temperature in December: 43.1°F

Warmest month (with highest average high temperature) is July (85.3°F).
Month with lowest average high temperature is January (39°F).

  • Average low temperature in December: 27.6°F

Month with highest average low temperature is July (66°F).
Coldest month (with lowest average low temperature) is January (23.2°F).

  • Average rainfall in December: 3.7"

Wettest month (with highest rainfall) is July (5").
Driest month (with lowest rainfall) is February (2.3").

  • Average rainfall days in December: 11 days

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

  • Average daylight in December: 9h

Months with longest days are June and July (Average daylight: 15).
Month with shortest days is December (Average daylight: 9).

  • Average sunshine in December: 4.5h

Month with most sunshine is June (Average sunshine: 8.8).
Month with least sunshine is December (Average sunshine: 4.5).

  • Average UV index in December: 2

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