December weather forecast
Bellmawr, NJ

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Weather in December

The first month of the winter, December, is also a frosty month in Bellmawr, New Jersey, with an average temperature varying between 44.1°F (6.7°C) and 32.9°F (0.5°C).

Temperature

As November transitions into December, Bellmawr sees a gentle drop in the average high-temperature, transitioning from a cool 52.7°F (11.5°C) to a chilly 44.1°F (6.7°C). In Bellmawr, the nighttime temperature averages to an icy 32.9°F (0.5°C) during December.

Humidity

The average relative humidity in December is 76%.

Rainfall

In Bellmawr, in December, during 7.5 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Bellmawr, during the entire year, the rain falls for 127.8 days and collects up to 13.82" (351mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Bellmawr, New Jersey, in December, during 1.6 snowfall days, 0.2" (5mm) of snow is typically accumulated. Throughout the year, there are 11.4 snowfall days, and 2.87" (73mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:03 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:45 pm EST.

Sunshine

The average sunshine in December in Bellmawr is 5h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Bellmawr. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold?

The average high-temperature and low-temperature during December are 44.1°F (6.7°C) and 32.9°F (0.5°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 91.4°F (33°C).

What is the average humidity in December?

In December, the average relative humidity is 76%.

How many days does it rain in December?

In Bellmawr, during December, the rain falls for 7.5 days and regularly aggregates up to 1.18" (30mm) of precipitation.

How many days does it snow in December?

In Bellmawr, during December, snow falls for 1.6 days and regularly aggregates up to 0.2" (5mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December?

In December, the average day length is 9h and 24min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:03 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:45 pm EST.

How many hours of sunshine does Bellmawr have in December?

In Bellmawr, the average sunshine duration in December is 5h.

When is the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to 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
Bellmawr, NJ

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

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in December: 32.9°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

Average pressure in December
Bellmawr, NJ

Average pressure in December - Bellmawr, NJ
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Bellmawr, NJ

Average wind speed in December - Bellmawr, NJ
  • Average wind speed in December: 7.7mph

The windiest months (with the highest average wind speed) are March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in December
Bellmawr, NJ

Average humidity in December - Bellmawr, NJ
  • Average humidity in December: 76%

The month with the highest relative humidity is October (77%).
The months with the lowest relative humidity are April and August (71%).

Average rainfall in December
Bellmawr, NJ

Average rainfall in December - Bellmawr, NJ
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is August (1.65").
The driest months (with the least rainfall) are January and February (0.83").

Average rainfall days in December
Bellmawr, NJ

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

The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is February (7.2 days).

Average snowfall in December
Bellmawr, NJ

Average snowfall in December - Bellmawr, NJ
  • Average snowfall in December: 0.2"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Bellmawr, NJ

Average snowfall days in December - Bellmawr, NJ
  • Average snowfall days in December: 1.6 days

The month with the highest number of snowfall days is January (3.8 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
Bellmawr, NJ

Average daylight in December / Average sunshine in December - Bellmawr, 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
Bellmawr, NJ

Average sunshine days in December - Bellmawr, NJ
  • Average sunshine days in December: 20.9 days

The month with the most sunshine days is December (20.9 days).
The month with the least sunshine days is May (13.3 days).

Average UV index in December
Bellmawr, NJ

Average UV index in December - Bellmawr, 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, November and December (UV index 2).

Average cloud cover in December
Bellmawr, NJ

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

The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Bellmawr, NJ

Average visibility in December - Bellmawr, 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).

Bellmawr, New Jersey, USA

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