December weather forecast
Clarksburg, NJ

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Weather in December

The first month of the winter, December, is also a frosty month in Clarksburg, New Jersey, with temperature in the range of an average high of 43.9°F (6.6°C) and an average low of 32.7°F (0.4°C).

Temperature

As November makes way for December, Clarksburg's average high-temperature eases from a cool 52.5°F (11.4°C) to a frosty 43.9°F (6.6°C). December's nights observe an average temperature of 32.7°F (0.4°C).

Humidity

The average relative humidity in December is 78%.

Rainfall

In Clarksburg, during December, the rain falls for 11 days and regularly aggregates up to 2.95" (75mm) of precipitation. Throughout the year, there are 154.3 rainfall days, and 29.25" (743mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. In Clarksburg, New Jersey, in December, snow falls for 3.2 days, with typically accumulated 1.14" (29mm) of snow. Throughout the year, there are 18.9 snowfall days, and 8.39" (213mm) of snow is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:01 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:42 pm EST.

Sunshine

In Clarksburg, the average sunshine in December is 5h.

UV index

The months with the lowest UV index 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 hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. To cut down UV radiation exposure by about half, sport a wide-brim hat. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold?

In Clarksburg, in December, the average high-temperature is 43.9°F (6.6°C), and the average low-temperature is 32.7°F (0.4°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 78%.

How many days does it rain in December?

In December, the rain falls for 11 days. Throughout December, 2.95" (75mm) of precipitation is accumulated.

How much does it snow in December?

In Clarksburg, in December, during 3.2 snowfall days, 1.14" (29mm) of snow is typically accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

In Clarksburg, the average day length in December is 9h and 22min.

When is the sunrise / sunset in December in Clarksburg?

On the first day of December, sunrise is at 7:01 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:42 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 5h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

In Clarksburg, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
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
Clarksburg, NJ

Average temperature in December - Clarksburg, NJ
  • Average high temperature in December: 43.9°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in December: 32.7°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

Average pressure in December
Clarksburg, NJ

Average pressure in December - Clarksburg, 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).

Average wind speed in December
Clarksburg, NJ

Average wind speed in December - Clarksburg, NJ
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in December
Clarksburg, NJ

Average humidity in December - Clarksburg, NJ
  • Average humidity in December: 78%

The months with the highest relative humidity are June and October (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in December
Clarksburg, NJ

Average rainfall in December - Clarksburg, NJ
  • Average rainfall in December: 2.95"

The wettest month (with the highest rainfall) is July (3.5").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in December
Clarksburg, NJ

Average rainfall days in December - Clarksburg, NJ
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (8.4 days).

Average snowfall in December
Clarksburg, NJ

Average snowfall in December - Clarksburg, NJ
  • Average snowfall in December: 1.14"

The month with the highest snowfall is March (3.23").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Clarksburg, NJ

Average snowfall days in December - Clarksburg, NJ
  • Average snowfall days in December: 3.2 days

The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Clarksburg, NJ

Average daylight in December / Average sunshine in December - Clarksburg, 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 24min).

  • Average sunshine in December: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in December
Clarksburg, NJ

Average sunshine days in December - Clarksburg, NJ
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.8 days).

Average UV index in December
Clarksburg, NJ

Average UV index in December - Clarksburg, 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).

Average cloud cover in December
Clarksburg, NJ

Average cloud cover in December - Clarksburg, NJ
  • Average cloud cover in December: 47

The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 31).

Average visibility in December
Clarksburg, NJ

Average visibility in December - Clarksburg, NJ
  • Average visibility in December: 6mi

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

Clarksburg, New Jersey, USA

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