December weather forecast
Adamston, NJ

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Weather in December

December, the first month of the winter in Adamston, is also a frosty month, with an average temperature varying between 45°F (7.2°C) and 37°F (2.8°C).

Temperature

December's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a cool 52.9°F (11.6°C) in November to a chilly 45°F (7.2°C). During the December nights, Adamston's temperature maintains an average close to the daytime highs, settling at an icy 37°F (2.8°C).

Humidity

In Adamston, the average relative humidity in December is 76%.

Rainfall

In Adamston, in December, it is raining for 9.4 days, with typically 1.57" (40mm) of accumulated precipitation. In Adamston, during the entire year, the rain falls for 132 days and collects up to 17.17" (436mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. The month with the most snowfall is December, when snow falls for 2.1 days and typically aggregates up to 0.75" (19mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:59 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:41 pm EST.

Sunshine

In December, the average sunshine is 5.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Adamston in December?

The high-temperature, in December, in Adamston, records 45°F (7.2°C), while the low-temperature is 37°F (2.8°C).

What is the average humidity in December?

In Adamston, the average relative humidity in December is 76%.

How many days does it rain in December?

In Adamston, in December, it is raining for 9.4 days, with typically 1.57" (40mm) of accumulated precipitation.

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 2.1 days and accumulates 0.75" (19mm) of snow.

How much does it snow in December?

In Adamston, during December, snow falls for 2.1 days and regularly aggregates up to 0.75" (19mm) of snow.

What is the month with the shortest days?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

The average day length in December in Adamston is 9h and 23min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:59 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:41 pm EST.

How many hours of sunshine does Adamston have in December?

In December, the average sunshine duration is 5.1h.

What are the months with the lowest UV index?

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

What is the UV index intensity in December?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Adamston, NJ

Average temperature in December - Adamston, NJ
  • Average high temperature in December: 45°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 37°F

The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in December
Adamston, NJ

Average pressure in December - Adamston, NJ
  • Average pressure in December: 30.08"Hg

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

Average wind speed in December
Adamston, NJ

Average wind speed in December - Adamston, NJ
  • Average wind speed in December: 12.4mph

The windiest month (with the highest average wind speed) is January (13.2mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

Average humidity in December
Adamston, NJ

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

The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January and November (74%).

Average rainfall in December
Adamston, NJ

Average rainfall in December - Adamston, NJ
  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is July (2.24").
The driest month (with the least rainfall) is January (0.83").

Average rainfall days in December
Adamston, NJ

Average rainfall days in December - Adamston, NJ
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is January (6.7 days).

Average snowfall in December
Adamston, NJ

Average snowfall in December - Adamston, NJ
  • Average snowfall in December: 0.75"

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

Average snowfall days in December
Adamston, NJ

Average snowfall days in December - Adamston, NJ
  • Average snowfall days in December: 2.1 days

The month with the highest number of snowfall days is January (3.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Adamston, NJ
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in December
Adamston, NJ

Average sunshine days in December - Adamston, NJ
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (13.7 days).

Average UV index in December
Adamston, NJ

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

Average cloud cover in December
Adamston, NJ

Average cloud cover in December - Adamston, NJ
  • Average cloud cover in December: 47

The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in December
Adamston, NJ

Average visibility in December - Adamston, 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).

Adamston, New Jersey, USA

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