December weather forecast
Avalon, NJ

Weather in December

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

Temperature

In Avalon, the average high-temperature in December marginally drops from a fresh 54.3°F (12.4°C) in November to a chilly 46.8°F (8.2°C). In Avalon, in December, the average low-temperature is 39.4°F (4.1°C).

Humidity

The average relative humidity in December in Avalon is 75%.

Rainfall

In Avalon, during December, the rain falls for 7.2 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, in Avalon, New Jersey, 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 December, the average ocean temperature in Avalon is 48°F (8.9°C).
Note: Swimming in 48°F (8.9°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

The month with the shortest days is December, with an average of 9h and 29min of daylight.
On the first day of December in Avalon, sunrise is at 6:59 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:46 pm EST.

Sunshine

In December, the average sunshine is 5.2h.

UV index

The months with the lowest UV index in Avalon are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

FAQ

What is the average humidity in December in Avalon?

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

How much does it rain in Avalon in December?

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

When does it start snowing in Avalon?

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

What is the water temperature in December in Avalon?

In Avalon, New Jersey, the average seawater temperature in December is 48°F (8.9°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the month with the shortest days in Avalon?

With an average of 9h and 29min of daylight, December has the shortest days of the year in Avalon.

How many hours of daylight does Avalon have in December?

In December, the average day length is 9h and 29min.

When is the sunrise / sunset in December in Avalon?

In December, on the first day of the month, sunrise is at 6:59 am and sunset at 4:36 pm. On the last day of the month, in Avalon, New Jersey, sunrise is at 7:17 am and sunset at 4:46 pm EST.

How long on average sun shines in December in Avalon?

In December, the average sunshine duration in Avalon is 5.2h.

When is the lowest UV index in Avalon?

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

What is the UV index intensity in December in Avalon?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes 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
Avalon, NJ

Average temperature in December - Avalon, 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).

[Resources]

Average pressure in December
Avalon, NJ

Average pressure in December - Avalon, 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).

[Resources]

Average wind speed in December
Avalon, NJ

Average wind speed in December - Avalon, 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).

[Resources]

Average humidity in December
Avalon, NJ

Average humidity in December - Avalon, 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%).

[Resources]

Average rainfall in December
Avalon, NJ

Average rainfall in December - Avalon, 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").

[Resources]

Average rainfall days in December
Avalon, NJ

Average rainfall days in December - Avalon, 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).

[Resources]

Average snowfall in December
Avalon, NJ

Average snowfall in December - Avalon, 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").

[Resources]

Average snowfall days in December
Avalon, NJ

Average snowfall days in December - Avalon, 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).

[Resources]

Average sea temperature in December
Avalon, NJ

Average sea temperature in December - Avalon, 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).

[Resources]

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

Average daylight in December / Average sunshine in December - Avalon, NJ
  • Average daylight in December: 9h and 29min

The month with the longest days is June (Average daylight: 14h and 52min).
The month with the shortest days is December (Average daylight: 9h and 29min).

  • Average sunshine in December: 5h and 12min

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).

[Resources]

Average sunshine days in December
Avalon, NJ

Average sunshine days in December - Avalon, 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).

[Resources]

Average UV index in December
Avalon, NJ

Average UV index in December - Avalon, 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).

[Resources]

Average cloud cover in December
Avalon, NJ

Average cloud cover in December - Avalon, 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).

[Resources]

Average visibility in December
Avalon, NJ

Average visibility in December - Avalon, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location