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

December 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
Diciembre, the first month of the winter, in Trenton, is still a chilly month, with average temperature varying between 27.7°F (-2.4°C) and 43.2°F (6.2°C).

Temperature

In Trenton, the average high-temperature in Diciembre decreases, from a fresh 54.5°F (12.5°C) in Noviembre, to a chilly 43.2°F (6.2°C). The average low-temperature, in Diciembre, is 27.7°F (-2.4°C).

Rainfall

In Trenton, New Jersey, in Diciembre, it is raining for 11 days, with typically 3.7" (94mm) of accumulated precipitation. Throughout the year, in Trenton, there are 118 rainfall days, and 46.44" (1179.7mm) of precipitation is accumulated.

Daylight

Diciembre has the shortest days of the year in Trenton, with an average of 9.4h of daylight.

Sunshine

With an average of 4.5h of sunshine, Diciembre has the least sunshine of the year in Trenton.

UV index

Months with the lowest UV index in Trenton are Enero, Noviembre and Diciembre, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 2 in Diciembre interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in Diciembre in Trenton?

In Diciembre, in Trenton, New Jersey, the average high-temperature is 43.2°F (6.2°C), and the average low-temperature is 27.7°F (-2.4°C).

How much does it rain in Trenton in Diciembre?

In Trenton, in Diciembre, it is raining for 11 days, with typically 3.7" (94mm) of accumulated precipitation.

What is the month with the shortest days in Trenton?

With an average of 9.4h of daylight, Diciembre has the shortest days of the year.

How many hours of daylight does Trenton have in Diciembre?

In Diciembre, the average length of the day in Trenton, New Jersey, is 9.4h.

What is the month with the least sunshine in Trenton?

Diciembre has the least sunshine of the year in Trenton, with an average of 4.5h of sunshine.

How many hours of sunshine does Trenton have in Diciembre?

The average sunshine in Diciembre is 4.5h.

When is the lowest UV index in Trenton?

Months with the lowest UV index in Trenton are Enero, Noviembre and Diciembre, with an average maximum UV index of 2.

How high is the UV index in Diciembre in Trenton?

In Trenton, the average daily maximum UV index in Diciembre is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to the UV radiation.
Average temperature in December - Trenton, NJ
  • Average high temperature in December: 6.2°C

The warmest month (with the highest average high temperature) is July (29.6°C).
The month with the lowest average high temperature is January (3.9°C).

  • Average low temperature in December: -2.4°C

The month with the highest average low temperature is July (18.9°C).
The coldest month (with the lowest average low temperature) is January (-4.9°C).

Average rainfall in December - Trenton, NJ
  • Average rainfall in December: 94mm

The wettest month (with the highest rainfall) is July (125.7mm).
The driest month (with the lowest rainfall) is February (58.7mm).

Average rainfall days in December - Trenton, NJ
  • Average rainfall days in December: 11 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).

Average daylight in December / Average sunshine in December - Trenton, NJ
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 4.5h

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

Average UV index in December - Trenton, NJ
  • Average UV index in December: 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).