December weather forecast and climate
Berlin, NJ

Weather in December

The first month of the winter, December, is still a chilly month in Berlin, New Jersey, with average temperature fluctuating between 44.2°F (6.8°C) and 33.1°F (0.6°C).

Temperature

In December, the average high-temperature decreases, from a cool 53.6°F (12°C) in November, to a chilly 44.2°F (6.8°C). The average low-temperature, in December, is 33.1°F (0.6°C).

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Berlin, New Jersey, during December, the rain falls for 7.3 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, in Berlin, there are 117 rainfall days, and 12.13" (308mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, May, November and December. In Berlin, in December, during 2 snowfall days, 0.24" (6mm) of snow is typically accumulated. In Berlin, during the entire year, snow falls for 11.4 days, and aggregates up to 3.11" (79mm) of snow.

Daylight

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

Sunshine

In Berlin, the average sunshine is 5.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. 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.
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FAQ

What is the average humidity in December in Berlin?

The average relative humidity in December in Berlin is 76%.

How many days does it rain in December in Berlin?

In Berlin, in December, it is raining for 7.3 days, with typically 1.26" (32mm) of accumulated precipitation.

How much does it snow in Berlin in December?

In Berlin, New Jersey, in December, during 2 snowfall days, 0.24" (6mm) of snow is typically accumulated.

What is the month with the shortest days in Berlin?

The month with the shortest days is December, with an average of 9.4h of daylight.

How many hours of daylight does Berlin have in December?

The average length of the day in December in Berlin, New Jersey, is 9.4h.

How many hours of sunshine does Berlin have in December?

In Berlin, New Jersey, the average sunshine in December is 5.1h.

When is the lowest UV index in Berlin?

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

What is the UV index reading in December in Berlin?

In Berlin, New Jersey, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from the exposure to the Sun's UV radiation.

Average temperature in December
Berlin, NJ

Average temperature in December - Berlin, NJ
  • Average high temperature in December: 44.2°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 33.1°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 (26.1°F).

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Average pressure in December
Berlin, NJ

Average pressure in December - Berlin, NJ
  • Average pressure in December: 30.09"

The month with the highest atmospheric pressure is November (30.12").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed in December
Berlin, NJ

Average wind speed in December - Berlin, NJ
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in December
Berlin, NJ

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

The month with the highest relative humidity is October (77%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in December
Berlin, NJ

Average rainfall in December - Berlin, NJ
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is August (1.38").
The driest months (with the least rainfall) are January and September (0.67").

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Average rainfall days in December
Berlin, NJ

Average rainfall days in December - Berlin, NJ
  • Average rainfall days in December: 7.3 days

The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is January (6.5 days).

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Average snowfall in December
Berlin, NJ

Average snowfall in December - Berlin, NJ
  • Average snowfall in December: 0.24"

The month with the highest snowfall is February (1.1").
Months with the least snowfall are April, June, July, August, September and October (0").

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Average snowfall days in December
Berlin, NJ

Average snowfall days in December - Berlin, NJ
  • Average snowfall days in December: 2 days

The month with the highest number of snowfall days is January (3.5 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Berlin, 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: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.9h).

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Average sunshine days in December
Berlin, NJ

Average sunshine days in December - Berlin, NJ
  • Average sunshine days in December: 21.5 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is July (14.3 days).

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Average UV index in December
Berlin, NJ

Average UV index in December - Berlin, NJ
  • Average UV index in December: 2

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

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Average cloud cover in December
Berlin, NJ

Average cloud cover in December - Berlin, NJ
  • Average cloud cover in December: 46

Months with the most cloud cover are February and March (Cloud cover 47).
Months with the least cloud cover are July and August (Cloud cover 31).

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Average visibility in December
Berlin, NJ

Average visibility in December - Berlin, 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).

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