December weather forecast
Gladstone, NJ

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Weather in December

December, the first month of the winter in Gladstone, is also an icy month, with an average temperature varying between 41°F (5°C) and 29.3°F (-1.5°C).

Temperature

A change in temperatures is noted as November gives way to December, with average highs reducing from a fresh 50.4°F (10.2°C) to an icy 41°F (5°C). During December, Gladstone experiences a consistent low-temperature average of 29.3°F (-1.5°C).

Humidity

In December, the average relative humidity in Gladstone is 79%.

Rainfall

The month with the most rainfall is December, when the rain falls for 10.9 days and typically aggregates up to 3.39" (86mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Gladstone. In Gladstone, during December, snow falls for 4 days and regularly aggregates up to 2.13" (54mm) of snow. In Gladstone, during the entire year, snow falls for 28.5 days and aggregates up to 14.49" (368mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in Gladstone, New Jersey.
On the first day of the month, sunrise is at 7:03 am and sunset at 4:31 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:41 pm EST.

Sunshine

The average sunshine in December is 4.8h.

UV index

The months with the lowest UV index in Gladstone are January through March, 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 unsafe exposure to UV radiation for the average person.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

Is it cold in Gladstone during December?

The average high-temperature, in December, in Gladstone, is 41°F (5°C), while the average low-temperature is 29.3°F (-1.5°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is appraised at 86°F (30°C).

What is the average humidity in December in Gladstone?

In December, the average relative humidity is 79%.

What is the rainiest month in Gladstone?

December is the month with the most rainfall in Gladstone, New Jersey. Rain falls for 10.9 days and accumulates 3.39" (86mm) of precipitation.

How many days does it rain in December in Gladstone?

In December, in Gladstone, New Jersey, the rain falls for 10.9 days. Throughout December, 3.39" (86mm) of precipitation is accumulated.

How many days does it snow in December in Gladstone?

In December, in Gladstone, it is snowing for 4 days. Throughout December, 2.13" (54mm) of snow is accumulated.

What is the month with the shortest days in Gladstone?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

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

The average day length in December is 9h and 19min.

When is the sunrise / sunset in December in Gladstone?

In December, on the first day of the month, sunrise is at 7:03 am and sunset at 4:31 pm. On the last day of the month, in Gladstone, sunrise is at 7:22 am and sunset at 4:41 pm EST.

How many hours of sunshine does Gladstone have in December?

In December, the average sunshine duration in Gladstone is 4.8h.

What are the months with the lowest UV index in Gladstone?

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

What is the UV index intensity in December in Gladstone?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe 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
Gladstone, NJ

Average temperature in December - Gladstone, NJ
  • Average high temperature in December: 41°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in December: 29.3°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

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Average pressure in December
Gladstone, NJ

Average pressure in December - Gladstone, 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
Gladstone, NJ

Average wind speed in December - Gladstone, NJ
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in December
Gladstone, NJ

Average humidity in December - Gladstone, NJ
  • Average humidity in December: 79%

The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in December
Gladstone, NJ

Average rainfall in December - Gladstone, NJ
  • Average rainfall in December: 3.39"

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in December
Gladstone, NJ

Average rainfall days in December - Gladstone, NJ
  • Average rainfall days in December: 10.9 days

The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is January (8.9 days).

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Average snowfall in December
Gladstone, NJ

Average snowfall in December - Gladstone, NJ
  • Average snowfall in December: 2.13"

The month with the highest snowfall is March (4.49").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Gladstone, NJ

Average snowfall days in December - Gladstone, NJ
  • Average snowfall days in December: 4 days

The month with the highest number of snowfall days is January (8.3 days).
The 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
Gladstone, NJ

Average daylight in December / Average sunshine in December - Gladstone, 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 18min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Gladstone, NJ

Average sunshine days in December - Gladstone, NJ
  • Average sunshine days in December: 16.6 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (11.4 days).

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Average UV index in December
Gladstone, NJ

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

The months with the highest UV index are June and July (UV index 6).
The 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
Gladstone, NJ

Average cloud cover in December - Gladstone, NJ
  • Average cloud cover in December: 49

The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in December
Gladstone, NJ

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

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

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Gladstone, New Jersey, USA

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