December weather forecast and climate
Oakland, NJ

Weather in December

The first month of the winter, December, is also a wintry month in Oakland, New Jersey, with average temperature varying between 28.9°F (-1.7°C) and 40.1°F (4.5°C).

Temperature

In Oakland, the average high-temperature in December decreases, from a chilly 49.8°F (9.9°C) in November, to a cold 40.1°F (4.5°C). The average low-temperature, in Oakland, New Jersey, is 28.9°F (-1.7°C).

Humidity

Months with the highest humidity in Oakland are February and December, with an average relative humidity of 80%.

Rainfall

In Oakland, during 9.1 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. Throughout the year, in Oakland, there are 148.6 rainfall days, and 26.18" (665mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Oakland. In Oakland, in December, snow falls for 4.1 days, with typically accumulated 2.6" (66mm) of snow. In Oakland, New Jersey, during the entire year, snow falls for 25.5 days, and aggregates up to 15.83" (402mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9.3h of daylight.

Sunshine

In Oakland, New Jersey, the average sunshine is 4.7h.

UV index

Months with the lowest UV index in Oakland are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
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. 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.
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FAQ

What is the most humid month in Oakland?

Months with the highest humidity in Oakland are February and December, with an average relative humidity of 80%.

What is the average humidity in December in Oakland?

In December, the average relative humidity is 80%.

How many days does it rain in December in Oakland?

In Oakland, New Jersey, in December, during 9.1 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

How much does it snow in Oakland in December?

In Oakland, in December, during 4.1 snowfall days, 2.6" (66mm) of snow is typically accumulated.

What is the month with the shortest days in Oakland?

The month with the shortest days in Oakland, New Jersey, is December, with an average of 9.3h of daylight.

What is the average length of the day in December in Oakland?

The average length of the day in December is 9.3h.

How long on average sun shines in December in Oakland?

The average sunshine in December in Oakland is 4.7h.

What is the month with the lowest UV index in Oakland?

Months with the lowest UV index in Oakland are January through March, November and December, with an average maximum UV index of 2.

What is the UV index reading in December in Oakland?

The average daily maximum UV index in December in Oakland, New Jersey, is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays.

Average temperature in December
Oakland, NJ

Average temperature in December - Oakland, NJ
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.5°F).

  • Average low temperature in December: 28.9°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in December
Oakland, NJ

Average pressure in December - Oakland, NJ
  • Average pressure in December: 30.07"

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

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Average wind speed in December
Oakland, NJ

Average wind speed in December - Oakland, NJ
  • Average wind speed in December: 7.2mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in December
Oakland, NJ

Average humidity in December - Oakland, NJ
  • Average humidity in December: 80%

Months with the highest relative humidity are February and December (80%).
Months with the lowest relative humidity are April, July and August (74%).

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Average rainfall in December
Oakland, NJ

Average rainfall in December - Oakland, NJ
  • Average rainfall in December: 2.48"

The wettest month (with the highest rainfall) is July (2.91").
The driest month (with the least rainfall) is September (1.5").

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Average rainfall days in December
Oakland, NJ

Average rainfall days in December - Oakland, NJ
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (6.6 days).

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Average snowfall in December
Oakland, NJ

Average snowfall in December - Oakland, NJ
  • Average snowfall in December: 2.6"

The month with the highest snowfall is March (4.25").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Oakland, NJ

Average snowfall days in December - Oakland, NJ
  • Average snowfall days in December: 4.1 days

The month with the highest number of snowfall days is February (7.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Oakland, NJ
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 4.7h

The month with the most sunshine is July (Average sunshine: 10.2h).
The month with the least sunshine is February (Average sunshine: 4.4h).

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Average sunshine days in December
Oakland, NJ

Average sunshine days in December - Oakland, NJ
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.9 days).

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Average UV index in December
Oakland, NJ

Average UV index in December - Oakland, 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, March, November and December (UV index 2).

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Average cloud cover in December
Oakland, NJ

Average cloud cover in December - Oakland, NJ
  • Average cloud cover in December: 50

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in December
Oakland, NJ

Average visibility in December - Oakland, NJ
  • Average visibility in December: 6mi

Months with the highest visibility are January, March, April, July, August, October, November and December (6mi).
Months with the lowest visibility are February, May, June and September (5mi).

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