December weather forecast
Stone Harbor, NJ

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Weather in December

The first month of the winter, December, is still a chilly month in Stone Harbor, New Jersey, with an average temperature fluctuating between 39.4°F (4.1°C) and 46.8°F (8.2°C).

Temperature

In Stone Harbor, the beginning of December is marked by a marginally lowered average high-temperature, shifting from November's cool 54.3°F (12.4°C) to a frosty 46.8°F (8.2°C). Stone Harbor's average temperature throughout the nights in December exhibits a minor decrease from daytime highs, stabilizing at an icy 39.4°F (4.1°C).

Humidity

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

Rainfall

In December, the rain falls for 7.2 days. Throughout December, 0.75" (19mm) of precipitation is accumulated. Throughout the year, in Stone Harbor, there are 112.7 rainfall days, and 8.94" (227mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 1.6 snowfall days, it receives 0.2" (5mm) of snow. Throughout the year, there are 8.3 snowfall days, and 0.67" (17mm) of snow is accumulated.

Ocean temperature

In Stone Harbor, in December, the average water temperature is 48°F (8.9°C).
Note: To swim in 48°F (8.9°C) at less than 50°F (10°C), ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 55.4°F (13°C) is not welcoming.

Daylight

With an average of 9h and 30min 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 4:37 pm. On the last day of December, in Stone Harbor, sunrise is at 7:17 am and sunset at 4:46 pm EST.

Sunshine

In Stone Harbor, the average sunshine in December is 5.2h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Stone Harbor, New Jersey. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 2 in December translates into this advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December in Stone Harbor?

In December, the average high-temperature and low-temperature in Stone Harbor, New Jersey, are 46.8°F (8.2°C) and 39.4°F (4.1°C) respectively.

What is the average humidity in December in Stone Harbor?

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

How much does it rain in Stone Harbor in December?

In Stone Harbor, during December, the rain falls for 7.2 days and regularly aggregates up to 0.75" (19mm) of precipitation.

When does it start to snow in Stone Harbor?

December is the first month it typically snows in Stone Harbor. Throughout December, in the average 1.6 snowfall days, it receives 0.2" (5mm) of snow.

How cold is the water in December in Stone Harbor?

In Stone Harbor, New Jersey, the average seawater temperature in December is 48°F (8.9°C). Swimming in 48°F (8.9°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 in Stone Harbor?

With an average of 9h and 30min of daylight, December has the shortest days of the year in Stone Harbor.

What is the average length of the day in December in Stone Harbor?

In December, the average day length in Stone Harbor, New Jersey, is 9h and 29min.

When are sunrise and sunset in December in Stone Harbor?

On the first day of December in Stone Harbor, New Jersey, sunrise is at 6:59 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:46 pm EST.

How many hours of sunshine does Stone Harbor have in December?

In December, the average sunshine duration in Stone Harbor, New Jersey, is 5.2h.

What is the month with the lowest UV index in Stone Harbor?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Stone Harbor, New Jersey.

What is the UV index intensity in December in Stone Harbor?

The average daily maximum UV index in December in Stone Harbor is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Stone Harbor, NJ

Average temperature in December - Stone Harbor, NJ
  • Average high temperature in December: 46.8°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in December: 39.4°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (32.7°F).

Average pressure in December
Stone Harbor, NJ

Average pressure in December - Stone Harbor, NJ
  • Average pressure in December: 30.09"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).

Average wind speed in December
Stone Harbor, NJ

Average wind speed in December - Stone Harbor, NJ
  • Average wind speed in December: 13mph

The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest months (with the lowest average wind speed) are July and August (9.1mph).

Average humidity in December
Stone Harbor, NJ

Average humidity in December - Stone Harbor, NJ
  • Average humidity in December: 75%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (73%).

Average rainfall in December
Stone Harbor, NJ

Average rainfall in December - Stone Harbor, NJ
  • Average rainfall in December: 0.75"

The wettest months (with the highest rainfall) are May and June (0.98").
The driest month (with the least rainfall) is January (0.39").

Average rainfall days in December
Stone Harbor, NJ

Average rainfall days in December - Stone Harbor, NJ
  • Average rainfall days in December: 7.2 days

The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is November (5.9 days).

Average snowfall in December
Stone Harbor, NJ

Average snowfall in December - Stone Harbor, NJ
  • Average snowfall in December: 0.2"

The month with the highest snowfall is February (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Stone Harbor, NJ

Average snowfall days in December - Stone Harbor, NJ
  • Average snowfall days in December: 1.6 days

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average sea temperature in December
Stone Harbor, NJ

Average sea temperature in December - Stone Harbor, NJ
  • Average sea temperature in December: 48°F

The best month for swimming (with the highest average sea temperature) is August (76.5°F).
The coldest month (with the lowest average sea temperature) is February (40.3°F).

Average daylight in December /
Average sunshine in December
Stone Harbor, NJ

Average daylight in December / Average sunshine in December - Stone Harbor, NJ
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in December
Stone Harbor, NJ

Average sunshine days in December - Stone Harbor, NJ
  • Average sunshine days in December: 21 days

The months with the most sunshine days are January and November (22.3 days).
The month with the least sunshine days is July (15.6 days).

Average UV index in December
Stone Harbor, NJ

Average UV index in December - Stone Harbor, 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 and December (UV index 2).

Average cloud cover in December
Stone Harbor, NJ

Average cloud cover in December - Stone Harbor, NJ
  • Average cloud cover in December: 44

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 24).

Average visibility in December
Stone Harbor, NJ

Average visibility in December - Stone Harbor, 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).

Stone Harbor, New Jersey, USA

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