December weather forecast
Lake Riviera, NJ

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Weather in December

The first month of the winter, December, is also a frosty month in Lake Riviera, New Jersey, with an average temperature fluctuating between 44.4°F (6.9°C) and 36.1°F (2.3°C).

Temperature

The advent of December brings a slight shift in average high-temperature, moving from a cool 52.7°F (11.5°C) in November to a chilly 44.4°F (6.9°C). Nighttime readings during December register a minimal drop from daytime highs, averaging at a cold 36.1°F (2.3°C).

Humidity

The average relative humidity in December is 76%.

Rainfall

In Lake Riviera, during December, the rain falls for 10 days and regularly aggregates up to 1.69" (43mm) of precipitation. In Lake Riviera, during the entire year, the rain falls for 137.7 days and collects up to 19.09" (485mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Lake Riviera, during December, snow falls for 2.4 days and regularly aggregates up to 0.79" (20mm) of snow. Throughout the year, there are 13.8 snowfall days, and 3.27" (83mm) 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 the month, sunrise is at 6:59 am and sunset at 4:31 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:41 pm EST.

Sunshine

The average sunshine in December is 5.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.

Frequently asked questions

Is December cold?

In December, the average high-temperature and low-temperature are 44.4°F (6.9°C) and 36.1°F (2.3°C) respectively. In July, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 76%.

How much does it rain in December?

In Lake Riviera, during December, the rain falls for 10 days and regularly aggregates up to 1.69" (43mm) of precipitation.

How many days does it snow in December?

In December, it is snowing for 2.4 days. Throughout December, 0.79" (20mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

The average day length in December is 9h and 23min.

When are sunrise and sunset in December in Lake Riviera?

In December, on the first day of the month, sunrise is at 6:59 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:41 pm EST.

How many hours of sunshine does Lake Riviera have in December?

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

What are the months with 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.

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe 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
Lake Riviera, NJ

Average temperature in December - Lake Riviera, NJ
  • Average high temperature in December: 44.4°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 36.1°F

The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).

Average pressure in December
Lake Riviera, NJ

Average pressure in December - Lake Riviera, 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).

Average wind speed in December
Lake Riviera, NJ

Average wind speed in December - Lake Riviera, NJ
  • Average wind speed in December: 11.5mph

The windiest month (with the highest average wind speed) is January (12.2mph).
The calmest month (with the lowest average wind speed) is July (8mph).

Average humidity in December
Lake Riviera, NJ

Average humidity in December - Lake Riviera, NJ
  • Average humidity in December: 76%

The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January, March and November (74%).

Average rainfall in December
Lake Riviera, NJ

Average rainfall in December - Lake Riviera, NJ
  • Average rainfall in December: 1.69"

The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (0.94").

Average rainfall days in December
Lake Riviera, NJ

Average rainfall days in December - Lake Riviera, NJ
  • Average rainfall days in December: 10 days

The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is January (7 days).

Average snowfall in December
Lake Riviera, NJ

Average snowfall in December - Lake Riviera, NJ
  • Average snowfall in December: 0.79"

The month with the highest snowfall is January (0.91").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Lake Riviera, NJ

Average snowfall days in December - Lake Riviera, NJ
  • Average snowfall days in December: 2.4 days

The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Lake Riviera, NJ

Average daylight in December / Average sunshine in December - Lake Riviera, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in December
Lake Riviera, NJ

Average sunshine days in December - Lake Riviera, NJ
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is July (11.9 days).

Average UV index in December
Lake Riviera, NJ

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

Average cloud cover in December
Lake Riviera, NJ

Average cloud cover in December - Lake Riviera, NJ
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in December
Lake Riviera, NJ

Average visibility in December - Lake Riviera, 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).

Lake Riviera, New Jersey, USA

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