December weather forecast
South Toms River, NJ

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Weather in December

December, the first month of the winter in South Toms River, is still a chilly month, with temperature in the range of an average low of 36.1°F (2.3°C) and an average high of 45°F (7.2°C).

Temperature

South Toms River's progression into December involves a gentle drop in the average high-temperature, from a fresh 53.1°F (11.7°C) in November to a chilly 45°F (7.2°C). December nights in South Toms River, New Jersey, cool to an average low-temperature of 36.1°F (2.3°C), a marginal decrease from its daytime equivalent.

Humidity

In South Toms River, the average relative humidity in December is 77%.

Rainfall

In South Toms River, New Jersey, in December, during 9.6 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. Throughout the year, there are 129.4 rainfall days, and 15.31" (389mm) of precipitation is accumulated.

Snowfall

Months with snowfall in South Toms River are January through March, November and December. The month with the most snowfall in South Toms River is December, when snow falls for 2.8 days and typically aggregates up to 0.75" (19mm) of snow.

Daylight

December has the shortest days of the year in South Toms River, with an average of 9h and 24min of daylight.
On the first day of December in South Toms River, sunrise is at 6:59 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 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 minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 2 during December leads to these advisories:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What is the usual temperature for South Toms River in December?

The high-temperature, in December, in South Toms River, is 45°F (7.2°C), while the low-temperature averages to 36.1°F (2.3°C). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 86°F (30°C).

What is the average humidity in December in South Toms River?

The average relative humidity in December is 77%.

How much does it rain in South Toms River in December?

In South Toms River, New Jersey, during December, the rain falls for 9.6 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When does it snow the most in South Toms River?

The month with the most snowfall in South Toms River is December, when snow falls for 2.8 days and typically aggregates up to 0.75" (19mm) of snow.

How much does it snow in South Toms River in December?

In South Toms River, 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 South Toms River?

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

What is the average length of the day in December in South Toms River?

In December, the average day length in South Toms River, New Jersey, is 9h and 23min.

When is the sunrise / sunset in December in South Toms River?

On the first day of December in South Toms River, New Jersey, sunrise is at 6:59 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.

How many hours of sunshine does South Toms River have in December?

The average sunshine duration in December in South Toms River is 5.1h.

What are the months with the lowest UV index in South Toms River?

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

What is the UV index intensity in December in South Toms River?

In South Toms River, New Jersey, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
South Toms River, NJ

Average temperature in December - South Toms River, 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).

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Average pressure in December
South Toms River, NJ

Average pressure in December - South Toms River, 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
South Toms River, NJ

Average wind speed in December - South Toms River, 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).

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Average humidity in December
South Toms River, NJ

Average humidity in December - South Toms River, 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%).

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Average rainfall in December
South Toms River, NJ

Average rainfall in December - South Toms River, 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").

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Average rainfall days in December
South Toms River, NJ

Average rainfall days in December - South Toms River, 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).

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Average snowfall in December
South Toms River, NJ

Average snowfall in December - South Toms River, 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").

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Average snowfall days in December
South Toms River, NJ

Average snowfall days in December - South Toms River, 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).

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Average daylight in December /
Average sunshine in December
South Toms River, NJ

Average daylight in December / Average sunshine in December - South Toms River, 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).

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Average sunshine days in December
South Toms River, NJ

Average sunshine days in December - South Toms River, 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).

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Average UV index in December
South Toms River, NJ

Average UV index in December - South Toms River, 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).

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Average cloud cover in December
South Toms River, NJ

Average cloud cover in December - South Toms River, 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).

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Average visibility in December
South Toms River, NJ

Average visibility in December - South Toms River, 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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South Toms River, New Jersey, USA

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