December weather forecast
Riegel Ridge, NJ

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Weather in December

The first month of the winter, December, is also an icy month in Riegel Ridge, New Jersey, with an average temperature fluctuating between 29.1°F (-1.6°C) and 40.8°F (4.9°C).

Temperature

In Riegel Ridge, entering December brings a temperature decrement, reducing from November's fresh 50.2°F (10.1°C) to an icy 40.8°F (4.9°C). An average low-temperature of 29.1°F (-1.6°C) is recorded in the month of December in Riegel Ridge.

Humidity

The average relative humidity in December is 80%.

Rainfall

In Riegel Ridge, in December, it is raining for 5.8 days, with typically 0.79" (20mm) of accumulated precipitation. Throughout the year, there are 91.3 rainfall days, and 7.28" (185mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Riegel Ridge are January through May, November and December. In Riegel Ridge, New Jersey, in December, during 2.2 snowfall days, 0.59" (15mm) of snow is typically accumulated. Throughout the year, there are 14.8 snowfall days, and 2.24" (57mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:05 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:43 pm EST.

Sunshine

In December, the average sunshine in Riegel Ridge is 4.7h.

UV index

The months with the lowest UV index in Riegel Ridge are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 2 during December translates into the following guidance:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

How cold is it in Riegel Ridge in December?

December temperatures vary between a high-temperature of 40.8°F (4.9°C) and a low-temperature of 29.1°F (-1.6°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 87.8°F (31°C).

What is the average humidity in December in Riegel Ridge?

In December, the average relative humidity in Riegel Ridge is 80%.

How many days does it rain in December in Riegel Ridge?

In Riegel Ridge, in December, during 5.8 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

How much does it snow in Riegel Ridge in December?

In December, in Riegel Ridge, it is snowing for 2.2 days. Throughout December, 0.59" (15mm) of snow is accumulated.

What is the month with the shortest days in Riegel Ridge?

December has the shortest days of the year in Riegel Ridge, with an average of 9h and 18min of daylight.

How many hours of daylight does Riegel Ridge have in December?

The average day length in December in Riegel Ridge, New Jersey, is 9h and 20min.

When are sunrise and sunset in December in Riegel Ridge?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 4:34 pm. On the last day of the month, in Riegel Ridge, New Jersey, sunrise is at 7:24 am and sunset at 4:43 pm EST.

How long on average sun shines in December in Riegel Ridge?

The average sunshine duration in December in Riegel Ridge, New Jersey, is 4.7h.

What is the month with the lowest UV index in Riegel Ridge?

The months with the lowest UV index in Riegel Ridge are January through March, November and December, with an average maximum UV index of 2.

What is the UV index reading in December in Riegel Ridge?

In Riegel Ridge, the average daily maximum UV index in December is 2. A UV Index reading 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
Riegel Ridge, NJ

Average temperature in December - Riegel Ridge, NJ
  • Average high temperature in December: 40.8°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in December: 29.1°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in December
Riegel Ridge, NJ

Average pressure in December - Riegel Ridge, 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).

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Average wind speed in December
Riegel Ridge, NJ

Average wind speed in December - Riegel Ridge, NJ
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
Riegel Ridge, NJ

Average humidity in December - Riegel Ridge, NJ
  • Average humidity in December: 80%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (76%).

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Average rainfall in December
Riegel Ridge, NJ

Average rainfall in December - Riegel Ridge, NJ
  • Average rainfall in December: 0.79"

The wettest month (with the highest rainfall) is July (0.91").
The driest month (with the least rainfall) is September (0.28").

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Average rainfall days in December
Riegel Ridge, NJ

Average rainfall days in December - Riegel Ridge, NJ
  • Average rainfall days in December: 5.8 days

The months with the highest number of rainy days are June and July (10.2 days).
The month with the least rainy days is January (4.3 days).

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Average snowfall in December
Riegel Ridge, NJ

Average snowfall in December - Riegel Ridge, NJ
  • Average snowfall in December: 0.59"

The month with the highest snowfall is March (0.63").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Riegel Ridge, NJ

Average snowfall days in December - Riegel Ridge, NJ
  • Average snowfall days in December: 2.2 days

The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Riegel Ridge, NJ

Average daylight in December / Average sunshine in December - Riegel Ridge, 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 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in December
Riegel Ridge, NJ

Average sunshine days in December - Riegel Ridge, NJ
  • Average sunshine days in December: 22.8 days

The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is June (16.7 days).

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Average UV index in December
Riegel Ridge, NJ

Average UV index in December - Riegel Ridge, NJ
  • Average UV index in December: 2

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

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Average cloud cover in December
Riegel Ridge, NJ

Average cloud cover in December - Riegel Ridge, NJ
  • Average cloud cover in December: 50

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).

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Average visibility in December
Riegel Ridge, NJ

Average visibility in December - Riegel Ridge, NJ
  • Average visibility in December: 6mi

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

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Riegel Ridge, New Jersey, USA

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