December weather forecast
Barnegat Bay, NJ

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Weather in December

December, the first month of the winter in Barnegat Bay, is also a frosty month, with an average temperature fluctuating between 45.9°F (7.7°C) and 37°F (2.8°C).

Temperature

With the arrival of December, Barnegat Bay experiences a modest decline in average high-temperatures, transitioning from a cool 53.6°F (12°C) in November to a chilly 45.9°F (7.7°C). The nights of December in Barnegat Bay, New Jersey, cool down to an average low of 37°F (2.8°C), subtly lower than daytime highs.

Humidity

The average relative humidity in December in Barnegat Bay is 76%.

Rainfall

In Barnegat Bay, in December, it is raining for 10.3 days, with typically 1.81" (46mm) of accumulated precipitation. Throughout the year, there are 138.1 rainfall days, and 17.4" (442mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Barnegat Bay are January through March, November and December. In Barnegat Bay, during December, snow falls for 2.1 days and regularly aggregates up to 0.94" (24mm) of snow. Throughout the year, there are 12.7 snowfall days, and 3.11" (79mm) of snow is accumulated.

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 6:59 am and sunset at 4:32 pm. On the last day of December, sunrise is at 7:17 am and sunset at 4:41 pm EST.

Sunshine

In Barnegat Bay, the average sunshine in December is 5.2h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Barnegat Bay. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

What are December temperatures in Barnegat Bay?

During December, Barnegat Bay experiences an average high-temperature of 45.9°F (7.7°C) and a low-temperature of 37°F (2.8°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 86°F (30°C).

What is the average humidity in December in Barnegat Bay?

The average relative humidity in December in Barnegat Bay is 76%.

How many days does it rain in December in Barnegat Bay?

In Barnegat Bay, during December, the rain falls for 10.3 days and regularly aggregates up to 1.81" (46mm) of precipitation.

How many days does it snow in December in Barnegat Bay?

In Barnegat Bay, in December, during 2.1 snowfall days, 0.94" (24mm) of snow is typically accumulated.

What is the month with the shortest days in Barnegat Bay?

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

What is the average length of the day in December in Barnegat Bay?

In December, the average day length in Barnegat Bay is 9h and 24min.

What time are sunrise and sunset in December in Barnegat Bay?

On the first day of December, sunrise is at 6:59 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:41 pm EST.

How long on average sun shines in December in Barnegat Bay?

In December, the average sunshine duration is 5.2h.

When is the lowest UV index in Barnegat Bay?

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

What is the UV index intensity in December in Barnegat Bay?

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
Barnegat Bay, NJ

Average temperature in December - Barnegat Bay, NJ
  • Average high temperature in December: 45.9°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (39.6°F).

  • Average low temperature in December: 37°F

The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (30°F).

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Average pressure in December
Barnegat Bay, NJ

Average pressure in December - Barnegat Bay, 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 (29.94"Hg).

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Average wind speed in December
Barnegat Bay, NJ

Average wind speed in December - Barnegat Bay, NJ
  • Average wind speed in December: 11.6mph

The windiest month (with the highest average wind speed) is January (12.2mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).

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Average humidity in December
Barnegat Bay, NJ

Average humidity in December - Barnegat Bay, NJ
  • Average humidity in December: 76%

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
Barnegat Bay, NJ

Average rainfall in December - Barnegat Bay, NJ
  • Average rainfall in December: 1.81"

The wettest month (with the highest rainfall) is July (2.09").
The driest month (with the least rainfall) is January (0.98").

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Average rainfall days in December
Barnegat Bay, NJ

Average rainfall days in December - Barnegat Bay, NJ
  • Average rainfall days in December: 10.3 days

The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is January (7.4 days).

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Average snowfall in December
Barnegat Bay, NJ

Average snowfall in December - Barnegat Bay, NJ
  • Average snowfall in December: 0.94"

The month with the highest snowfall is January (1.02").
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
Barnegat Bay, NJ

Average snowfall days in December - Barnegat Bay, NJ
  • Average snowfall days in December: 2.1 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
Barnegat Bay, NJ

Average daylight in December / Average sunshine in December - Barnegat Bay, 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 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in December
Barnegat Bay, NJ

Average sunshine days in December - Barnegat Bay, NJ
  • Average sunshine days in December: 17.2 days

The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is July (12.5 days).

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Average UV index in December
Barnegat Bay, NJ

Average UV index in December - Barnegat Bay, 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
Barnegat Bay, NJ

Average cloud cover in December - Barnegat Bay, NJ
  • Average cloud cover in December: 45

The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 26).

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Average visibility in December
Barnegat Bay, NJ

Average visibility in December - Barnegat Bay, 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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Barnegat Bay, New Jersey, USA

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