December weather forecast
Rivercrest Manor, NJ

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Weather in December

The first month of the winter, December, is also a frosty month in Rivercrest Manor, New Jersey, with an average temperature fluctuating between 36.1°F (2.3°C) and 45°F (7.2°C).

Temperature

With the beginning of December, the average high-temperature shows a small decrease, transitioning from a cool 53.1°F (11.7°C) in November to a chilly 45°F (7.2°C). Rivercrest Manor encounters an average temperature dip to a cold 36.1°F (2.3°C) throughout December, subtly lower than its daytime maximum.

Humidity

In Rivercrest Manor, the average relative humidity in December is 77%.

Rainfall

In Rivercrest Manor, in December, it is raining for 9.6 days, with typically 1.5" (38mm) of accumulated precipitation. In Rivercrest Manor, during the entire year, the rain falls for 129.4 days and collects up to 15.31" (389mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall in Rivercrest Manor. December is the month with the most snowfall in Rivercrest Manor. Snow falls for 2.8 days and accumulates 0.75" (19mm) of snow.

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 7:00 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:41 pm EST.

Sunshine

The average sunshine in December in Rivercrest Manor is 5.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures in Rivercrest Manor?

The average high-temperature and low-temperature in Rivercrest Manor during December are 45°F (7.2°C) and 36.1°F (2.3°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 86°F (30°C).

What is the average humidity in December in Rivercrest Manor?

The average relative humidity in December in Rivercrest Manor is 77%.

How many days does it rain in December in Rivercrest Manor?

In Rivercrest Manor, New Jersey, in December, it is raining for 9.6 days, with typically 1.5" (38mm) of accumulated precipitation.

When does it snow the most in Rivercrest Manor?

December is the month with the most snowfall in Rivercrest Manor. Snow falls for 2.8 days and accumulates 0.75" (19mm) of snow.

How much does it snow in Rivercrest Manor in December?

In Rivercrest Manor, New Jersey, during December, snow falls for 2.8 days and regularly aggregates up to 0.75" (19mm) of snow.

What is the month with the shortest days in Rivercrest Manor?

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 Rivercrest Manor?

In Rivercrest Manor, New Jersey, the average day length in December is 9h and 23min.

When are sunrise and sunset in December in Rivercrest Manor?

In December, on the first day of the month, sunrise is at 7:00 am and sunset at 4:32 pm. On the last day of the month, in Rivercrest Manor, sunrise is at 7:18 am and sunset at 4:41 pm EST.

How long on average sun shines in December in Rivercrest Manor?

In Rivercrest Manor, New Jersey, the average sunshine duration in December is 5.1h.

What is the month with the lowest UV index in Rivercrest Manor?

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

What is the UV index intensity in December in Rivercrest Manor?

The average daily maximum UV index in December in Rivercrest Manor, New Jersey, is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Rivercrest Manor, NJ

Average temperature in December - Rivercrest Manor, NJ
  • Average high temperature in December: 45°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in December: 36.1°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in December
Rivercrest Manor, NJ

Average pressure in December - Rivercrest Manor, 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
Rivercrest Manor, NJ

Average wind speed in December - Rivercrest Manor, NJ
  • Average wind speed in December: 11.1mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

Average humidity in December
Rivercrest Manor, NJ

Average humidity in December - Rivercrest Manor, NJ
  • Average humidity in December: 77%

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
Rivercrest Manor, NJ

Average rainfall in December - Rivercrest Manor, NJ
  • Average rainfall in December: 1.5"

The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in December
Rivercrest Manor, NJ

Average rainfall days in December - Rivercrest Manor, NJ
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is January (6.9 days).

Average snowfall in December
Rivercrest Manor, NJ

Average snowfall in December - Rivercrest Manor, NJ
  • Average snowfall in December: 0.75"

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

Average snowfall days in December
Rivercrest Manor, NJ

Average snowfall days in December - Rivercrest Manor, NJ
  • Average snowfall days in December: 2.8 days

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

Average daylight in December /
Average sunshine in December
Rivercrest Manor, NJ

Average daylight in December / Average sunshine in December - Rivercrest Manor, 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
Rivercrest Manor, NJ

Average sunshine days in December - Rivercrest Manor, NJ
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (13.9 days).

Average UV index in December
Rivercrest Manor, NJ

Average UV index in December - Rivercrest Manor, 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
Rivercrest Manor, NJ

Average cloud cover in December - Rivercrest Manor, 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
Rivercrest Manor, NJ

Average visibility in December - Rivercrest Manor, 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).

Rivercrest Manor, New Jersey, USA

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