December weather forecast and climate
Island Beach Heights, NJ

The first month of the winter, December, is still a chilly month in Island Beach Heights, New Jersey, with average temperature varying between 45°F (7.2°C) and 36.1°F (2.3°C).

Temperature

In December, the average high-temperature marginally drops, from a fresh 53.1°F (11.7°C) in November, to a frosty 45°F (7.2°C). The average low-temperature, in December, is 36.1°F (2.3°C).

Humidity

In December, the average relative humidity in Island Beach Heights is 77%.

Rainfall

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

Snowfall

January through March, November and December are months with snowfall in Island Beach Heights. The month with the most snowfall 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, with an average of 9.4h of daylight.

Sunshine

In December, the average sunshine is 5.1h.

UV index

Months with the lowest UV index in Island Beach Heights are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Island Beach Heights?

In Island Beach Heights, in December, the average high-temperature is 45°F (7.2°C), and the average low-temperature is 36.1°F (2.3°C).

What is the average humidity in December in Island Beach Heights?

In Island Beach Heights, the average relative humidity in December is 77%.

How much does it rain in Island Beach Heights in December?

In Island Beach Heights, in December, it is raining for 9.6 days, with typically 1.5" (38mm) of accumulated precipitation.

How much does it snow in Island Beach Heights in December?

In December, it is snowing for 2.8 days. Throughout December, 0.75" (19mm) of snow is accumulated.

What is the snowiest month in Island Beach Heights?

December is the month with the most snowfall. Snow falls for 2.8 days and accumulates 0.75" (19mm) of snow.

What is the month with the shortest days in Island Beach Heights?

December has the shortest days of the year, with an average of 9.4h of daylight.

How many hours of daylight does Island Beach Heights have in December?

In Island Beach Heights, New Jersey, the average length of the day in December is 9.4h.

How many hours of sunshine does Island Beach Heights have in December?

In Island Beach Heights, New Jersey, the average sunshine in December is 5.1h.

When is the lowest UV index in Island Beach Heights?

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

What is the UV index intensity in December in Island Beach Heights?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in December - Island Beach Heights, 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).

Average pressure in December - Island Beach Heights, NJ
  • Average pressure in December: 30.08"

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

Average wind speed in December - Island Beach Heights, 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).

Average humidity in December - Island Beach Heights, NJ
  • Average humidity in December: 77%

Months with the highest relative humidity are May and June (80%).
Months with the lowest relative humidity are January, March and November (74%).

Average rainfall in December - Island Beach Heights, 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").

Average rainfall days in December - Island Beach Heights, 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).

Average snowfall in December - Island Beach Heights, NJ
  • Average snowfall in December: 0.75"

The month with the highest snowfall is December (0.75").
Months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December - Island Beach Heights, NJ
  • Average snowfall days in December: 2.8 days

The month with the highest number of snowfall days is January (4.3 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Island Beach Heights, NJ
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 5.1h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is February (Average sunshine: 4.9h).

Average sunshine days in December - Island Beach Heights, 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).

Average UV index in December - Island Beach Heights, NJ
  • Average UV index in December: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December - Island Beach Heights, NJ
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 47).
Months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in December - Island Beach Heights, NJ
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).