December weather forecast
Ardena, NJ

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Weather in December

December, the first month of the winter in Ardena, is also a frosty month, with an average temperature varying between 44.1°F (6.7°C) and 34.7°F (1.5°C).

Temperature

In December, the average high-temperature marginally decreases from a cool 52.3°F (11.3°C) in November to a frosty 44.1°F (6.7°C). Ardena in December experiences a low-temperature average of 34.7°F (1.5°C).

Humidity

The average relative humidity in December is 77%.

Rainfall

In Ardena, in December, it is raining for 12.6 days, with typically 3.39" (86mm) of accumulated precipitation. In Ardena, during the entire year, the rain falls for 162 days and collects up to 32.2" (818mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Ardena, in December, during 3.2 snowfall days, 1.42" (36mm) of snow is typically accumulated. Throughout the year, in Ardena, there are 17 snowfall days, and 5.55" (141mm) 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 the month, sunrise is at 7:00 am and sunset at 4:31 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:41 pm EST.

Sunshine

In December, the average sunshine in Ardena, New Jersey, is 5.1h.

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 estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold does it get in Ardena in December?

December temperatures vary between a high-temperature of 44.1°F (6.7°C) and a low-temperature of 34.7°F (1.5°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in July is computed to be 87.8°F (31°C).

What is the average humidity in December in Ardena?

In Ardena, the average relative humidity in December is 77%.

How many days does it rain in December in Ardena?

In Ardena, New Jersey, during December, the rain falls for 12.6 days and regularly aggregates up to 3.39" (86mm) of precipitation.

How much does it snow in Ardena in December?

In Ardena, New Jersey, in December, snow falls for 3.2 days, with typically accumulated 1.42" (36mm) of snow.

What is the month with the shortest days in Ardena?

With an average of 9h and 24min of daylight, December has the shortest days of the year in Ardena.

What is the average length of the day in December in Ardena?

The average day length in December is 9h and 22min.

What time are sunrise and sunset in December in Ardena?

In December, on the first day of the month, sunrise is at 7:00 am and sunset at 4:31 pm. On the last day of the month, in Ardena, sunrise is at 7:19 am and sunset at 4:41 pm EST.

How long on average sun shines in December in Ardena?

In Ardena, the average sunshine duration in December is 5.1h.

When is the lowest UV index in Ardena?

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 intensity in December in Ardena?

The average daily maximum UV index in December in Ardena is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Ardena, NJ

Average temperature in December - Ardena, NJ
  • Average high temperature in December: 44.1°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 34.7°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

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Average pressure in December
Ardena, NJ

Average pressure in December - Ardena, 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
Ardena, NJ

Average wind speed in December - Ardena, NJ
  • Average wind speed in December: 10.4mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in December
Ardena, NJ

Average humidity in December - Ardena, NJ
  • Average humidity in December: 77%

The months with the highest relative humidity are May and June (79%).
The months with the lowest relative humidity are January, March, April and November (74%).

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Average rainfall in December
Ardena, NJ

Average rainfall in December - Ardena, NJ
  • Average rainfall in December: 3.39"

The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is January (1.93").

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Average rainfall days in December
Ardena, NJ

Average rainfall days in December - Ardena, NJ
  • Average rainfall days in December: 12.6 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (9.2 days).

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Average snowfall in December
Ardena, NJ

Average snowfall in December - Ardena, NJ
  • Average snowfall in December: 1.42"

The month with the highest snowfall is March (1.46").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Ardena, NJ

Average snowfall days in December - Ardena, 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 May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Ardena, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in December
Ardena, NJ

Average sunshine days in December - Ardena, NJ
  • Average sunshine days in December: 15.4 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in December
Ardena, NJ

Average UV index in December - Ardena, 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
Ardena, NJ

Average cloud cover in December - Ardena, NJ
  • Average cloud cover in December: 46

The months with the most cloud cover are February, March and December (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 28).

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Average visibility in December
Ardena, NJ

Average visibility in December - Ardena, 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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Ardena, New Jersey, USA

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