December weather forecast
Clarksburg, NJ

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Weather in December

December, the first month of the winter in Clarksburg, is also a frosty month, with an average temperature ranging between max 43.9°F (6.6°C) and min 32.7°F (0.4°C).

Temperature

December is characterized by a mild reduction in the average high-temperature, from a cool 52.5°F (11.4°C) in November to a frosty 43.9°F (6.6°C). During December, Clarksburg consistently records a temperature low averaging a wintry 32.7°F (0.4°C).

Humidity

In December, the average relative humidity is 78%.

Rainfall

In December, in Clarksburg, the rain falls for 11 days. Throughout December, 2.95" (75mm) of precipitation is accumulated. In Clarksburg, during the entire year, the rain falls for 154.3 days and collects up to 29.25" (743mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Clarksburg, during December, snow falls for 3.2 days and regularly aggregates up to 1.14" (29mm) of snow. Throughout the year, there are 18.9 snowfall days, and 8.39" (213mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of December in Clarksburg, New Jersey, 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

The average sunshine in December is 5h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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Frequently asked questions

How cold is December in Clarksburg?

In Clarksburg, 43.9°F (6.6°C) is the average high-temperature and 32.7°F (0.4°C) is the average low-temperature during December. In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is computed to be 87.8°F (31°C).

What is the average humidity in December in Clarksburg?

In Clarksburg, the average relative humidity in December is 78%.

How many days does it rain in December in Clarksburg?

In Clarksburg, during December, the rain falls for 11 days and regularly aggregates up to 2.95" (75mm) of precipitation.

How many days does it snow in December in Clarksburg?

In December, it is snowing for 3.2 days. Throughout December, 1.14" (29mm) of snow is accumulated.

What is the month with the shortest days in Clarksburg?

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

How many hours of daylight does Clarksburg have in December?

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

When are sunrise and sunset in December in Clarksburg?

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

How long on average sun shines in December in Clarksburg?

In December, the average sunshine duration is 5h.

When is the lowest UV index in Clarksburg?

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

What is the UV index intensity in December in Clarksburg?

In Clarksburg, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe 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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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Clarksburg, New Jersey, USA

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