December weather forecast
Weehawken, NJ

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Weather in December

December announces the arrival of winter in Weehawken with its signature blend of cooler temperatures and increased precipitation. Snowfall makes a reappearance, with an average of 1.61" (41mm) expected, adding to the holiday charm. With the reduction in daylight hours and a decline in the average temperature, December embraces its role as a winter month fully. This month also sees an increase in relative humidity, a common trait of winter months. All indicia foretell a typically cold and potentially snowy Christmas season for Weehawken.

Temperature

The shift to December brings a decrease in the average high-temperature, falling from a cool 51.3°F (10.7°C) in November to a cold 42.1°F (5.6°C). Weehawken temperatures generally rest at a low of 32.9°F (0.5°C) during the December nights.

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 76%.

Rainfall

December is the month with the most rainfall. Rain falls for 12.5 days and accumulates 3.78" (96mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Weehawken, during December, snow falls for 3.5 days and regularly aggregates up to 1.61" (41mm) of snow. In Weehawken, during the entire year, snow falls for 22.7 days and aggregates up to 10.79" (274mm) of snow.

Ocean temperature

In December, the average ocean temperature is 47.1°F (8.4°C).
Note: Swimming in 47.1°F (8.4°C) at temperatures under 50°F (10°C) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 55.4°F (13°C) feels frosty.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:01 am and sunset at 4:29 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:38 pm EST.

Sunshine

In December, the average sunshine is 4.9h.

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: The UV index of 2 during December translates into the following guidance:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during December?

In Weehawken, in December, the average high-temperature is 42.1°F (5.6°C), and the average low-temperature is 32.9°F (0.5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is computed to be 86°F (30°C).

What are the most humid months?

The months with the highest humidity are February and December, with an average relative humidity of 76%.

What is the average humidity in December?

In Weehawken, the average relative humidity in December is 76%.

What is the wettest month in Weehawken?

December is the month with the most rainfall. Rain falls for 12.5 days and accumulates 3.78" (96mm) of precipitation.

How many days does it rain in December?

In Weehawken, in December, it is raining for 12.5 days, with typically 3.78" (96mm) of accumulated precipitation.

How much does it snow in Weehawken in December?

In Weehawken, in December, during 3.5 snowfall days, 1.61" (41mm) of snow is typically accumulated.

What is the ocean temperature in December?

In Weehawken, the average seawater temperature in December is 47.1°F (8.4°C). Swimming in 47.1°F (8.4°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

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.

How many hours of daylight does Weehawken have in December?

The average day length in December is 9h and 19min.

When are sunrise and sunset in December?

On the first day of December in Weehawken, sunrise is at 7:01 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:38 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 4.9h.

When is the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Weehawken, NJ

Average temperature in December - Weehawken, NJ
  • Average high temperature in December: 42.1°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (36.3°F).

  • Average low temperature in December: 32.9°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in December
Weehawken, NJ

Average pressure in December - Weehawken, NJ
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Weehawken, NJ

Average wind speed in December - Weehawken, NJ
  • Average wind speed in December: 9.2mph

The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

Average humidity in December
Weehawken, NJ

Average humidity in December - Weehawken, NJ
  • Average humidity in December: 76%

The months with the highest relative humidity are February and December (76%).
The month with the lowest relative humidity is August (70%).

Average rainfall in December
Weehawken, NJ

Average rainfall in December - Weehawken, NJ
  • Average rainfall in December: 3.78"

The wettest month (with the highest rainfall) is December (3.78").
The driest month (with the least rainfall) is September (2.2").

Average rainfall days in December
Weehawken, NJ

Average rainfall days in December - Weehawken, NJ
  • Average rainfall days in December: 12.5 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (9 days).

Average snowfall in December
Weehawken, NJ

Average snowfall in December - Weehawken, NJ
  • Average snowfall in December: 1.61"

The month with the highest snowfall is March (3.86").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Weehawken, NJ

Average snowfall days in December - Weehawken, NJ
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in December
Weehawken, NJ

Average sea temperature in December - Weehawken, NJ
  • Average sea temperature in December: 47.2°F

The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).

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

Average daylight in December / Average sunshine in December - Weehawken, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in December
Weehawken, NJ

Average sunshine days in December - Weehawken, NJ
  • Average sunshine days in December: 15.9 days

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is June (11.7 days).

Average UV index in December
Weehawken, NJ

Average UV index in December - Weehawken, 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).

Average cloud cover in December
Weehawken, NJ

Average cloud cover in December - Weehawken, NJ
  • Average cloud cover in December: 47

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Weehawken, NJ

Average visibility in December - Weehawken, 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).

Weehawken, New Jersey, USA

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