December weather forecast
Wanamassa, NJ

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Weather in December

December, the first month of the winter in Wanamassa, is still a chilly month, with an average temperature ranging between min 36.3°F (2.4°C) and max 44.4°F (6.9°C).

Temperature

The average high-temperature slightly decreases in December, shifting from a fresh 52.3°F (11.3°C) in November to a chilly 44.4°F (6.9°C). Throughout December, Wanamassa reports a steady low-temperature average of 36.3°F (2.4°C), slightly lower than its daytime counterpart.

Humidity

In Wanamassa, the average relative humidity in December is 75%.

Rainfall

In Wanamassa, during December, the rain falls for 8.8 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Wanamassa, during the entire year, the rain falls for 122.1 days and collects up to 11.14" (283mm) of precipitation.

Snowfall

Months with snowfall in Wanamassa, New Jersey, are January through March, October and December. December is the month with the most snowfall in Wanamassa. Snow falls for 3.1 days and accumulates 0.47" (12mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:00 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:40 pm EST.

Sunshine

In December, the average sunshine is 5.1h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
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Frequently asked questions

How cold is it in Wanamassa in December?

In Wanamassa, 44.4°F (6.9°C) is the average high-temperature and 36.3°F (2.4°C) is the average low-temperature during December.

What is the average humidity in December in Wanamassa?

In December, the average relative humidity in Wanamassa, New Jersey, is 75%.

How much does it rain in Wanamassa in December?

In Wanamassa, during December, the rain falls for 8.8 days and regularly aggregates up to 1.1" (28mm) of precipitation.

What is the snowiest month in Wanamassa?

December is the month with the most snowfall in Wanamassa. Snow falls for 3.1 days and accumulates 0.47" (12mm) of snow.

When does it start snowing in Wanamassa?

December is the first month it typically snows in Wanamassa, New Jersey. Throughout December, in the average 3.1 snowfall days, it receives 0.47" (12mm) of snow.

What is the month with the shortest days in Wanamassa?

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

What is the average length of the day in December in Wanamassa?

In Wanamassa, New Jersey, the average day length in December is 9h and 22min.

When are sunrise and sunset in December in Wanamassa?

In December, on the first day of the month, sunrise is at 7:00 am and sunset at 4:30 pm. On the last day of the month, in Wanamassa, New Jersey, sunrise is at 7:18 am and sunset at 4:40 pm EST.

How long on average sun shines in December in Wanamassa?

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

What is the month with the lowest UV index in Wanamassa?

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

What is the UV index reading in December in Wanamassa?

In Wanamassa, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes 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
Wanamassa, NJ

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

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in December: 36.3°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).

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Average pressure in December
Wanamassa, NJ

Average pressure in December - Wanamassa, 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).

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Average wind speed in December
Wanamassa, NJ

Average wind speed in December - Wanamassa, NJ
  • Average wind speed in December: 11.9mph

The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is July (8mph).

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Average humidity in December
Wanamassa, NJ

Average humidity in December - Wanamassa, NJ
  • Average humidity in December: 75%

The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is November (73%).

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Average rainfall in December
Wanamassa, NJ

Average rainfall in December - Wanamassa, NJ
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is July (1.38").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days in December
Wanamassa, NJ

Average rainfall days in December - Wanamassa, NJ
  • Average rainfall days in December: 8.8 days

The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is November (6.8 days).

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Average snowfall in December
Wanamassa, NJ

Average snowfall in December - Wanamassa, NJ
  • Average snowfall in December: 0.47"

The month with the highest snowfall is December (0.47").
The months with the least snowfall are April, May, June, July, August, September and November (0").

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Average snowfall days in December
Wanamassa, NJ

Average snowfall days in December - Wanamassa, NJ
  • Average snowfall days in December: 3.1 days

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

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

Average daylight in December / Average sunshine in December - Wanamassa, 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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in December
Wanamassa, NJ

Average sunshine days in December - Wanamassa, NJ
  • Average sunshine days in December: 19.1 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (14.3 days).

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Average UV index in December
Wanamassa, NJ

Average UV index in December - Wanamassa, 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, March, November and December (UV index 2).

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Average cloud cover in December
Wanamassa, NJ

Average cloud cover in December - Wanamassa, NJ
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in December
Wanamassa, NJ

Average visibility in December - Wanamassa, 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).

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Wanamassa, New Jersey, USA

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