December weather forecast
Wantage, NJ

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Weather in December

The first month of the winter, December, is still a cold month in Wantage, New Jersey, with an average temperature fluctuating between 26.8°F (-2.9°C) and 38.3°F (3.5°C).

Temperature

With the beginning of December, the average high-temperature shows a decrease, transitioning from a chilly 48.4°F (9.1°C) in November to a wintry 38.3°F (3.5°C). Wantage, during the nights of December, experiences an average temperature drop to a freezing cold 26.8°F (-2.9°C).

Humidity

The months with the highest humidity are February, October and December, with an average relative humidity of 82%.

Rainfall

In Wantage, in December, during 11.9 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. In Wantage, during the entire year, the rain falls for 164.9 days and collects up to 31.89" (810mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Wantage, in December, snow falls for 6.4 days, with typically accumulated 3.39" (86mm) of snow. In Wantage, during the entire year, snow falls for 36.9 days and aggregates up to 19.84" (504mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:05 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:39 pm EST.

Sunshine

In December, the average sunshine is 4.6h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.

Frequently asked questions

How cold is December?

In December, the average high-temperature and low-temperature are 38.3°F (3.5°C) and 26.8°F (-2.9°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 calculated to be 89.6°F (32°C).

What is the most humid month?

The months with the highest humidity are February, October and December, with an average relative humidity of 82%.

What is the average humidity in December?

In Wantage, the average relative humidity in December is 82%.

How much does it rain in December?

In December, the rain falls for 11.9 days. Throughout December, 3.03" (77mm) of precipitation is accumulated.

How much does it snow in December?

In December, it is snowing for 6.4 days. Throughout December, 3.39" (86mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In Wantage, the average day length in December is 9h and 16min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:39 pm EST.

How long on average sun shines in December?

In Wantage, the average sunshine duration in December is 4.6h.

What is the month with the lowest UV index?

With an average maximum UV index of 1, December is the month with the lowest UV index.

What is the UV index reading in December?

In December, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to the Sun's 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
Wantage, NJ

Average temperature in December - Wantage, NJ
  • Average high temperature in December: 38.3°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32.7°F).

  • Average low temperature in December: 26.8°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in December
Wantage, NJ

Average pressure in December - Wantage, 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
Wantage, NJ

Average wind speed in December - Wantage, NJ
  • Average wind speed in December: 6.9mph

The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Wantage, NJ

Average humidity in December - Wantage, NJ
  • Average humidity in December: 82%

The months with the highest relative humidity are February, October and December (82%).
The month with the lowest relative humidity is April (76%).

Average rainfall in December
Wantage, NJ

Average rainfall in December - Wantage, NJ
  • Average rainfall in December: 3.03"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in December
Wantage, NJ

Average rainfall days in December - Wantage, NJ
  • Average rainfall days in December: 11.9 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (8.7 days).

Average snowfall in December
Wantage, NJ

Average snowfall in December - Wantage, NJ
  • Average snowfall in December: 3.39"

The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Wantage, NJ

Average snowfall days in December - Wantage, NJ
  • Average snowfall days in December: 6.4 days

The months with the highest number of snowfall days are January and February (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Wantage, NJ

Average daylight in December / Average sunshine in December - Wantage, NJ
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
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 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

Average sunshine days in December
Wantage, NJ

Average sunshine days in December - Wantage, NJ
  • Average sunshine days in December: 15.7 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is April (10.4 days).

Average UV index in December
Wantage, NJ

Average UV index in December - Wantage, NJ
  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Wantage, NJ

Average cloud cover in December - Wantage, NJ
  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 36).

Average visibility in December
Wantage, NJ

Average visibility in December - Wantage, NJ
  • Average visibility in December: 5mi

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

Wantage, New Jersey, USA

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