December weather forecast
Four Mile, NJ

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Weather in December

December, the first month of the winter in Four Mile, is still a chilly month, with an average temperature varying between 44.6°F (7°C) and 33.4°F (0.8°C).

Temperature

December heralds a minor drop in average high-temperature, sliding from November's cool 53.1°F (11.7°C) to a frosty 44.6°F (7°C). Throughout December, Four Mile registers a consistent average low-temperature of 33.4°F (0.8°C).

Humidity

The average relative humidity in December in Four Mile is 77%.

Rainfall

In December, the rain falls for 9 days. Throughout December, 1.38" (35mm) of precipitation is accumulated. Throughout the year, in Four Mile, there are 120.9 rainfall days, and 12.8" (325mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in Four Mile. In Four Mile, during December, snow falls for 2.5 days and regularly aggregates up to 0.59" (15mm) of snow. In Four Mile, New Jersey, during the entire year, snow falls for 14.6 days and aggregates up to 3.15" (80mm) of snow.

Daylight

The month with the shortest days in Four Mile is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:01 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:43 pm EST.

Sunshine

In Four Mile, the average sunshine in December is 5.1h.

UV index

The months with the lowest UV index in Four Mile, New Jersey, 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 exposure to the Sun's UV rays for ordinary individuals.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Boost your sun resistance with garments that are densely woven yet spacious. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold is it in Four Mile in December?

December temperatures in Four Mile vary between a high-temperature of 44.6°F (7°C) and a low-temperature of 33.4°F (0.8°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is computed to be 89.6°F (32°C).

What is the average humidity in December in Four Mile?

In December, the average relative humidity is 77%.

How many days does it rain in December in Four Mile?

In Four Mile, in December, during 9 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

How much does it snow in Four Mile in December?

In Four Mile, New Jersey, in December, during 2.5 snowfall days, 0.59" (15mm) of snow is typically accumulated.

What is the month with the shortest days in Four Mile?

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

How many hours of daylight does Four Mile have in December?

In Four Mile, New Jersey, the average day length in December is 9h and 24min.

When are sunrise and sunset in December in Four Mile?

In December, on the first day of the month, sunrise is at 7:01 am and sunset at 4:33 pm. On the last day of the month, in Four Mile, New Jersey, sunrise is at 7:19 am and sunset at 4:43 pm EST.

How many hours of sunshine does Four Mile have in December?

In December, the average sunshine duration in Four Mile is 5.1h.

When is the lowest UV index in Four Mile?

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

What is the UV index reading in December in Four Mile?

In Four Mile, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes 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
Four Mile, NJ

Average temperature in December - Four Mile, NJ
  • Average high temperature in December: 44.6°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 33.4°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

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Average pressure in December
Four Mile, NJ

Average pressure in December - Four Mile, NJ
  • Average pressure in December: 30.09"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
Four Mile, NJ

Average wind speed in December - Four Mile, NJ
  • Average wind speed in December: 8.1mph

The windiest months (with the highest average wind speed) are February, March and April (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in December
Four Mile, NJ

Average humidity in December - Four Mile, NJ
  • Average humidity in December: 77%

The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in December
Four Mile, NJ

Average rainfall in December - Four Mile, NJ
  • Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in December
Four Mile, NJ

Average rainfall days in December - Four Mile, NJ
  • Average rainfall days in December: 9 days

The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is January (5.8 days).

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Average snowfall in December
Four Mile, NJ

Average snowfall in December - Four Mile, NJ
  • Average snowfall in December: 0.59"

The month with the highest snowfall is March (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Four Mile, NJ

Average snowfall days in December - Four Mile, NJ
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is January (4.5 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
Four Mile, NJ

Average daylight in December / Average sunshine in December - Four Mile, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in December
Four Mile, NJ

Average sunshine days in December - Four Mile, NJ
  • Average sunshine days in December: 18.9 days

The months with the most sunshine days are January and November (21.3 days).
The month with the least sunshine days is July (13 days).

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Average UV index in December
Four Mile, NJ

Average UV index in December - Four Mile, NJ
  • Average UV index in December: 2

The months with the highest UV index are May, 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
Four Mile, NJ

Average cloud cover in December - Four Mile, NJ
  • Average cloud cover in December: 46

The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 31).

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Average visibility in December
Four Mile, NJ

Average visibility in December - Four Mile, 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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Four Mile, New Jersey, USA

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