December weather forecast
Blawenburg, NJ

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Weather in December

December, the first month of the winter in Blawenburg, is still a cold month, with an average temperature ranging between min 31.1°F (-0.5°C) and max 42.4°F (5.8°C).

Temperature

December's onset brings a reduction in the average high-temperature, from a cool 51.6°F (10.9°C) in November to an icy 42.4°F (5.8°C). During December, the temperature tends to dip to an average of 31.1°F (-0.5°C) at night.

Humidity

In Blawenburg, New Jersey, the average relative humidity in December is 78%.

Rainfall

In Blawenburg, New Jersey, during December, the rain falls for 7.5 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Blawenburg, New Jersey, during the entire year, the rain falls for 107.3 days and collects up to 8.82" (224mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Blawenburg, in December, during 2.5 snowfall days, 0.43" (11mm) of snow is typically accumulated. In Blawenburg, during the entire year, snow falls for 15.5 days and aggregates up to 2.76" (70mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
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 is 4.9h.

UV index

The months with the lowest UV index in Blawenburg 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 the ordinary person.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in Blawenburg in December?

In Blawenburg, in December, the average high-temperature is 42.4°F (5.8°C), and the average low-temperature is 31.1°F (-0.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 87.8°F (31°C).

What is the average humidity in December in Blawenburg?

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

How many days does it rain in December in Blawenburg?

In Blawenburg, in December, it is raining for 7.5 days, with typically 0.98" (25mm) of accumulated precipitation.

How much does it snow in Blawenburg in December?

In Blawenburg, New Jersey, during December, snow falls for 2.5 days and regularly aggregates up to 0.43" (11mm) of snow.

What is the month with the shortest days in Blawenburg?

December has the shortest days of the year in Blawenburg, New Jersey, with an average of 9h and 18min of daylight.

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

In December, the average day length in Blawenburg is 9h and 21min.

When is the sunrise / sunset in December in Blawenburg?

In December, on the first day of the month, sunrise is at 7:03 am and sunset at 4:32 pm. On the last day of the month, in Blawenburg, sunrise is at 7:21 am and sunset at 4:42 pm EST.

How many hours of sunshine does Blawenburg have in December?

The average sunshine duration in December in Blawenburg, New Jersey, is 4.9h.

When is the lowest UV index in Blawenburg?

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 Blawenburg?

In Blawenburg, New Jersey, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Blawenburg, NJ

Average temperature in December - Blawenburg, NJ
  • Average high temperature in December: 42.4°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

Average pressure in December
Blawenburg, NJ

Average pressure in December - Blawenburg, NJ
  • Average pressure in December: 30.09"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
Blawenburg, NJ

Average wind speed in December - Blawenburg, 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).

Average humidity in December
Blawenburg, NJ

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

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

Average rainfall in December
Blawenburg, NJ

Average rainfall in December - Blawenburg, NJ
  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.35").

Average rainfall days in December
Blawenburg, NJ

Average rainfall days in December - Blawenburg, NJ
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is November (5.5 days).

Average snowfall in December
Blawenburg, NJ

Average snowfall in December - Blawenburg, NJ
  • Average snowfall in December: 0.43"

The month with the highest snowfall is March (0.75").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Blawenburg, NJ

Average snowfall days in December - Blawenburg, NJ
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Blawenburg, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Blawenburg, NJ

Average sunshine days in December - Blawenburg, NJ
  • Average sunshine days in December: 21.2 days

The month with the most sunshine days is November (22.7 days).
The month with the least sunshine days is July (13.6 days).

Average UV index in December
Blawenburg, NJ

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

The months with the highest UV index are May, 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
Blawenburg, NJ

Average cloud cover in December - Blawenburg, NJ
  • Average cloud cover in December: 48

The months with the most cloud cover are February and December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in December
Blawenburg, NJ

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

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

Blawenburg, New Jersey, USA

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