December weather forecast and climate
Twin Rivers, NJ

The first month of the winter, December, is still a chilly month in Twin Rivers, New Jersey, with temperature in the range of an average low of 32.7°F (0.4°C) and an average high of 43.9°F (6.6°C).

Temperature

In Twin Rivers, the average high-temperature slightly decreases, from a cool 52.5°F (11.4°C) in November, to a chilly 43.9°F (6.6°C). The average low-temperature, is 32.7°F (0.4°C).

Humidity

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

Rainfall

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

Snowfall

January through May, November and December are months with snowfall. In Twin Rivers, in December, snow falls for 3.2 days, with typically accumulated 1.14" (29mm) of snow. In Twin Rivers, during the entire year, snow falls for 18.9 days, and aggregates up to 8.39" (213mm) of snow.

Daylight

With an average of 9.4h of daylight, December has the shortest days of the year in Twin Rivers.

Sunshine

In Twin Rivers, 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 in Twin Rivers. A UV Index of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Twin Rivers?

In December, in Twin Rivers, New Jersey, the average high-temperature is 43.9°F (6.6°C), and the average low-temperature is 32.7°F (0.4°C).

What is the average humidity in December in Twin Rivers?

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

How much does it rain in Twin Rivers in December?

In Twin Rivers, in December, during 11 rainfall days, 2.95" (75mm) of precipitation is typically accumulated.

How much does it snow in Twin Rivers in December?

In Twin Rivers, in December, during 3.2 snowfall days, 1.14" (29mm) of snow is typically accumulated.

What is the month with the shortest days in Twin Rivers?

December has the shortest days of the year in Twin Rivers, with an average of 9.4h of daylight.

How many hours of daylight does Twin Rivers have in December?

In December, the average length of the day in Twin Rivers, New Jersey, is 9.4h.

How many hours of sunshine does Twin Rivers have in December?

The average sunshine in December in Twin Rivers, New Jersey, is 5h.

What are the months with the lowest UV index in Twin Rivers?

Months with the lowest UV index in Twin Rivers, 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 Twin Rivers?

In Twin Rivers, New Jersey, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV rays.
Average temperature in December - Twin Rivers, NJ
  • Average high temperature in December: 6.6°C

The warmest month (with the highest average high temperature) is July (28.8°C).
The month with the lowest average high temperature is January (3°C).

  • Average low temperature in December: 0.4°C

The month with the highest average low temperature is July (19.9°C).
The coldest month (with the lowest average low temperature) is January (-3.7°C).

Average pressure in December - Twin Rivers, NJ
  • Average pressure in December: 1018.7mbar

The month with the highest atmospheric pressure is November (1019.6mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in December - Twin Rivers, NJ
  • Average wind speed in December: 13.7km/h

The windiest month (with the highest average wind speed) is March (15km/h).
The calmest months (with the lowest average wind speed) are July and August (9.6km/h).

Average humidity in December - Twin Rivers, NJ
  • Average humidity in December: 78%

Months with the highest relative humidity are June and October (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in December - Twin Rivers, NJ
  • Average rainfall in December: 75mm

The wettest month (with the highest rainfall) is July (89mm).
The driest month (with the least rainfall) is September (43mm).

Average rainfall days in December - Twin Rivers, 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).

Average snowfall in December - Twin Rivers, NJ
  • Average snowfall in December: 29mm

The month with the highest snowfall is March (82mm).
Months with the least snowfall are June, July, August, September and October (0mm).

Average snowfall days in December - Twin Rivers, NJ
  • Average snowfall days in December: 3.2 days

The month with the highest number of snowfall days is January (5.3 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Twin Rivers, NJ
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 5h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.8h).

Average sunshine days in December - Twin Rivers, 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).

Average UV index in December - Twin Rivers, NJ
  • Average UV index in December: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December - Twin Rivers, NJ
  • Average cloud cover in December: 47

Months with the most cloud cover are February, March and December (Cloud cover 47).
Months with the least cloud cover are July and August (Cloud cover 31).

Average visibility in December - Twin Rivers, NJ
  • Average visibility in December: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).