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 fluctuating between 45°F (7.2°C) and 37°F (2.8°C).

Temperature

As December begins, there is a minor decrease in the average high-temperature, softly falling from a cool 52.9°F (11.6°C) in November to a chilly 45°F (7.2°C). Nighttime temperature in Adamston sees a small decrement from daytime highs, dipping to an average of 37°F (2.8°C) during December.

Humidity

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

Rainfall

In December, the rain falls for 9.4 days. Throughout December, 1.57" (40mm) of precipitation is accumulated. Throughout the year, there are 132 rainfall days, and 17.17" (436mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in Adamston. December is the month with the most snowfall. Snow falls for 2.1 days and accumulates 0.75" (19mm) of snow.

Daylight

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

Sunshine

In December, 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 of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

What is the average December temperature in Adamston?

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?

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

How many days does it rain in December in Adamston?

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

When does it snow the most in Adamston?

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

How many days does it snow in December in Adamston?

In Adamston, in December, during 2.1 snowfall days, 0.75" (19mm) of snow is typically accumulated.

What is the month with the shortest days in Adamston?

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

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

In December, the average day length in Adamston is 9h and 23min.

When is the sunrise / sunset in December in Adamston?

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, in Adamston, New Jersey, sunrise is at 7:18 am and sunset at 4:41 pm EST.

How many hours of sunshine does Adamston have in December?

The average sunshine duration in December in Adamston is 5.1h.

When is the lowest UV index in Adamston?

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

What is the UV index reading in December in Adamston?

In Adamston, New Jersey, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk 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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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Adamston, New Jersey, USA

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