December weather forecast and climate
Oak Ridge, NJ

December, the first month of the winter, in Oak Ridge, is still a cold month, with average temperature ranging between min 27.5°F (-2.5°C) and max 38.8°F (3.8°C).

Temperature

In December, the average high-temperature decreases, from a frosty 48.6°F (9.2°C) in November, to a wintry 38.8°F (3.8°C). In Oak Ridge, the average low-temperature is 27.5°F (-2.5°C).

Humidity

In December, the average relative humidity in Oak Ridge is 81%.

Rainfall

In Oak Ridge, it is raining for 8.8 days, with typically 1.22" (31mm) of accumulated precipitation. In Oak Ridge, during the entire year, the rain falls for 133 days and collects up to 14.02" (356mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Oak Ridge. In Oak Ridge, in December, during 4.5 snowfall days, 1.02" (26mm) of snow is typically accumulated. In Oak Ridge, during the entire year, snow falls for 26.7 days, and aggregates up to 6.06" (154mm) of snow.

Daylight

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

Sunshine

The average sunshine in December is 4.5h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Oak Ridge. A UV Index estimate of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 interpret into the following advice:
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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Oak Ridge?

In Oak Ridge, New Jersey, in December, the average high-temperature is 38.8°F (3.8°C), and the average low-temperature is 27.5°F (-2.5°C).

What is the average humidity in December in Oak Ridge?

The average relative humidity in December in Oak Ridge is 81%.

How many days does it rain in December in Oak Ridge?

In Oak Ridge, New Jersey, in December, it is raining for 8.8 days, with typically 1.22" (31mm) of accumulated precipitation.

How much does it snow in Oak Ridge in December?

In Oak Ridge, in December, during 4.5 snowfall days, 1.02" (26mm) of snow is typically accumulated.

What is the month with the shortest days in Oak Ridge?

With an average of 9.3h of daylight, December has the shortest days of the year in Oak Ridge, New Jersey.

How many hours of daylight does Oak Ridge have in December?

In December, the average length of the day in Oak Ridge is 9.3h.

How many hours of sunshine does Oak Ridge have in December?

The average sunshine in December is 4.5h.

What is the month with the lowest UV index in Oak Ridge?

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

What is the UV index intensity in December in Oak Ridge?

In Oak Ridge, New Jersey, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in December - Oak Ridge, NJ
  • Average high temperature in December: 3.8°C

The warmest month (with the highest average high temperature) is July (28°C).
The month with the lowest average high temperature is January (0.7°C).

  • Average low temperature in December: -2.5°C

The month with the highest average low temperature is July (17.1°C).
The coldest month (with the lowest average low temperature) is January (-6.4°C).

Average pressure in December - Oak Ridge, NJ
  • Average pressure in December: 1018.5mbar

The month with the highest atmospheric pressure is November (1019.5mbar).
The month with the lowest atmospheric pressure is June (1013.6mbar).

Average wind speed in December - Oak Ridge, NJ
  • Average wind speed in December: 11.7km/h

The windiest month (with the highest average wind speed) is March (13km/h).
The calmest month (with the lowest average wind speed) is August (8km/h).

Average humidity in December - Oak Ridge, NJ
  • Average humidity in December: 81%

The month with the highest relative humidity is October (82%).
The month with the lowest relative humidity is April (76%).

Average rainfall in December - Oak Ridge, NJ
  • Average rainfall in December: 31mm

The wettest month (with the highest rainfall) is July (47mm).
The driest month (with the least rainfall) is January (18mm).

Average rainfall days in December - Oak Ridge, NJ
  • Average rainfall days in December: 8.8 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in December - Oak Ridge, NJ
  • Average snowfall in December: 26mm

The month with the highest snowfall is February (38mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December - Oak Ridge, NJ
  • Average snowfall days in December: 4.5 days

The month with the highest number of snowfall days is January (6.9 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Oak Ridge, 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: 4.5h

The month with the most sunshine is July (Average sunshine: 9.9h).
The month with the least sunshine is February (Average sunshine: 4.1h).

Average sunshine days in December - Oak Ridge, NJ
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (12.1 days).

Average UV index in December - Oak Ridge, NJ
  • Average UV index in December: 2

The month with the highest UV index is June (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December - Oak Ridge, NJ
  • Average cloud cover in December: 52

Months with the most cloud cover are February and March (Cloud cover 53).
Months with the least cloud cover are July and August (Cloud cover 38).

Average visibility in December - Oak Ridge, NJ
  • Average visibility in December: 8km

The month with the highest visibility is April (9km).
Months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (8km).