December weather forecast
Newfoundland, NJ

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Weather in December

The first month of the winter, December, is still a cold month in Newfoundland, New Jersey, with an average temperature ranging between max 38.8°F (3.8°C) and min 27.5°F (-2.5°C).

Temperature

The beginning of December involves a decrease in the average high-temperature, transitioning from a chilly 48.6°F (9.2°C) in November to a wintry 38.8°F (3.8°C). December in Newfoundland, New Jersey, witnesses an average low-temperature hovering around a subzero cold 27.5°F (-2.5°C).

Humidity

In December, the average relative humidity is 81%.

Rainfall

In Newfoundland, in December, it is raining for 8.8 days, with typically 1.22" (31mm) of accumulated precipitation. In Newfoundland, during the entire year, the rain falls for 133 days and collects up to 14.02" (356mm) of precipitation.

Snowfall

Months with snowfall in Newfoundland, New Jersey, are January through May, October through December. In Newfoundland, in December, snow falls for 4.5 days, with typically accumulated 1.02" (26mm) of snow. In Newfoundland, during the entire year, snow falls for 26.7 days and aggregates up to 6.06" (154mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:03 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:39 pm EST.

Sunshine

The average sunshine in December in Newfoundland is 4.5h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Newfoundland. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

Is December cold in Newfoundland?

In December, in Newfoundland, the average high-temperature is 38.8°F (3.8°C), and the average low-temperature is 27.5°F (-2.5°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is calculated to be 89.6°F (32°C).

What is the average humidity in December in Newfoundland?

In December, the average relative humidity in Newfoundland is 81%.

How much does it rain in Newfoundland in December?

In Newfoundland, in December, during 8.8 rainfall days, 1.22" (31mm) of precipitation is typically accumulated.

How much does it snow in Newfoundland in December?

In Newfoundland, New Jersey, during December, snow falls for 4.5 days and regularly aggregates up to 1.02" (26mm) of snow.

What is the month with the shortest days in Newfoundland?

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

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

The average day length in December is 9h and 17min.

When is the sunrise / sunset in December in Newfoundland?

On the first day of December, sunrise is at 7:03 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:39 pm EST.

How many hours of sunshine does Newfoundland have in December?

In Newfoundland, New Jersey, the average sunshine duration in December is 4.5h.

What is the month with the lowest UV index in Newfoundland?

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

How high is the UV index in December in Newfoundland?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's 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
Newfoundland, NJ

Average temperature in December - Newfoundland, NJ
  • Average high temperature in December: 38.8°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.3°F).

  • Average low temperature in December: 27.5°F

The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure in December
Newfoundland, NJ

Average pressure in December - Newfoundland, 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
Newfoundland, NJ

Average wind speed in December - Newfoundland, NJ
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
Newfoundland, NJ

Average humidity in December - Newfoundland, NJ
  • Average humidity in December: 81%

The month with the highest relative humidity is October (82%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in December
Newfoundland, NJ

Average rainfall in December - Newfoundland, NJ
  • Average rainfall in December: 1.22"

The wettest month (with the highest rainfall) is July (1.85").
The driest month (with the least rainfall) is January (0.71").

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Average rainfall days in December
Newfoundland, NJ

Average rainfall days in December - Newfoundland, NJ
  • Average rainfall days in December: 8.8 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (5.3 days).

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Average snowfall in December
Newfoundland, NJ

Average snowfall in December - Newfoundland, NJ
  • Average snowfall in December: 1.02"

The month with the highest snowfall is February (1.5").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Newfoundland, NJ

Average snowfall days in December - Newfoundland, NJ
  • Average snowfall days in December: 4.5 days

The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 3min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).

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Average sunshine days in December
Newfoundland, NJ

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

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (12.1 days).

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Average UV index in December
Newfoundland, NJ

Average UV index in December - Newfoundland, NJ
  • Average UV index in December: 2

The month with the highest UV index is June (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
Newfoundland, NJ

Average cloud cover in December - Newfoundland, NJ
  • Average cloud cover in December: 52

The months with the most cloud cover are February and March (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 38).

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Average visibility in December
Newfoundland, NJ

Average visibility in December - Newfoundland, NJ
  • Average visibility in December: 5mi

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

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Newfoundland, New Jersey, USA

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