December weather forecast
Belle Mead, NJ

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Weather in December

December, the first month of the winter in Belle Mead, is also an icy month, with an average temperature fluctuating between 30.7°F (-0.7°C) and 42.1°F (5.6°C).

Temperature

The arrival of December corresponds with a temperature reduction, down from November's cool 51.1°F (10.6°C) to an icy 42.1°F (5.6°C). In Belle Mead, the average low-temperature during the month of December is a subzero cold 30.7°F (-0.7°C).

Humidity

The months with the highest humidity in Belle Mead are February, October and December, with an average relative humidity of 79%.

Rainfall

In Belle Mead, in December, it is raining for 7.7 days, with typically 0.98" (25mm) of accumulated precipitation. In Belle Mead, during the entire year, the rain falls for 113.9 days and collects up to 10.83" (275mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Belle Mead, New Jersey, during December, snow falls for 2.6 days and regularly aggregates up to 0.63" (16mm) of snow. Throughout the year, in Belle Mead, there are 15.6 snowfall days, and 3.19" (81mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:03 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:42 pm EST.

Sunshine

The average sunshine in December in Belle Mead is 4.8h.

UV index

The months with the lowest UV index in Belle Mead are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: An average UV index of 2 in December transforms into this advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

Is it cold in Belle Mead during December?

In December, in Belle Mead, the average high-temperature is 42.1°F (5.6°C), and the average low-temperature is 30.7°F (-0.7°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is computed to be 89.6°F (32°C).

What are the most humid months in Belle Mead?

February, October and December, with an average relative humidity of 79%, are most humid months.

What is the average humidity in December in Belle Mead?

In Belle Mead, the average relative humidity in December is 79%.

How many days does it rain in December in Belle Mead?

In Belle Mead, during December, the rain falls for 7.7 days and regularly aggregates up to 0.98" (25mm) of precipitation.

How many days does it snow in December in Belle Mead?

In Belle Mead, New Jersey, in December, snow falls for 2.6 days, with typically accumulated 0.63" (16mm) of snow.

What is the month with the shortest days in Belle Mead?

The month with the shortest days in Belle Mead is December, with an average of 9h and 18min of daylight.

How many hours of daylight does Belle Mead have in December?

In December, the average day length is 9h and 20min.

When are sunrise and sunset in December in Belle Mead?

On the first day of December in Belle Mead, New Jersey, sunrise is at 7:03 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:42 pm EST.

How many hours of sunshine does Belle Mead have in December?

In December, the average sunshine duration is 4.8h.

When is the lowest UV index in Belle Mead?

The months with the lowest UV index in Belle Mead are January through March, November and December, with an average maximum UV index of 2.

What is the UV index reading in December in Belle Mead?

In December, the average daily maximum UV index in Belle Mead is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Belle Mead, NJ

Average temperature in December - Belle Mead, NJ
  • Average high temperature in December: 42.1°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in December: 30.7°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in December
Belle Mead, NJ

Average pressure in December - Belle Mead, NJ
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Belle Mead, NJ

Average wind speed in December - Belle Mead, NJ
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in December
Belle Mead, NJ

Average humidity in December - Belle Mead, NJ
  • Average humidity in December: 79%

The months with the highest relative humidity are February, October and December (79%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in December
Belle Mead, NJ

Average rainfall in December - Belle Mead, NJ
  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is September (0.51").

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Average rainfall days in December
Belle Mead, NJ

Average rainfall days in December - Belle Mead, NJ
  • Average rainfall days in December: 7.7 days

The month with the highest number of rainy days is May (13.1 days).
The month with the least rainy days is January (5.8 days).

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Average snowfall in December
Belle Mead, NJ

Average snowfall in December - Belle Mead, NJ
  • Average snowfall in December: 0.63"

The month with the highest snowfall is March (0.87").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Belle Mead, NJ

Average snowfall days in December - Belle Mead, NJ
  • Average snowfall days in December: 2.6 days

The month with the highest number of snowfall days is February (5.1 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Belle Mead, NJ

Average daylight in December / Average sunshine in December - Belle Mead, NJ
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Belle Mead, NJ

Average sunshine days in December - Belle Mead, NJ
  • Average sunshine days in December: 21.5 days

The month with the most sunshine days is January (22 days).
The month with the least sunshine days is May (14.8 days).

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Average UV index in December
Belle Mead, NJ

Average UV index in December - Belle Mead, NJ
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in December
Belle Mead, NJ

Average cloud cover in December - Belle Mead, NJ
  • Average cloud cover in December: 49

The months with the most cloud cover are February and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in December
Belle Mead, NJ

Average visibility in December - Belle Mead, NJ
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

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Belle Mead, New Jersey, USA

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