December weather forecast
Metuchen, NJ

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Weather in December

The first month of the winter, December, is also an icy month in Metuchen, New Jersey, with an average temperature ranging between min 32.5°F (0.3°C) and max 42.6°F (5.9°C).

Temperature

The beginning of December marks a decrease in the average high-temperature, transitioning from a fresh 52°F (11.1°C) in November to a cold 42.6°F (5.9°C). Throughout December, Metuchen witnesses a nighttime temperature average of 32.5°F (0.3°C).

Humidity

The months with the highest humidity in Metuchen are February, October and December, with an average relative humidity of 77%.

Rainfall

In Metuchen, New Jersey, during December, the rain falls for 10.2 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Metuchen, during the entire year, the rain falls for 149.9 days and collects up to 26.93" (684mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Metuchen, in December, snow falls for 3.2 days, with typically accumulated 0.94" (24mm) of snow. Throughout the year, in Metuchen, there are 18.6 snowfall days, and 7.64" (194mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December in Metuchen, sunrise is at 7:02 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:40 pm EST.

Sunshine

In December, the average sunshine is 4.8h.

UV index

The months with the lowest UV index 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 low health risk from unsafe exposure to UV radiation for the average person.
Note: In December, the maximum UV index of 2 suggests these recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

Is it cold in Metuchen during December?

An average high-temperature, in December, in Metuchen, is 42.6°F (5.9°C) and the average low-temperature is 32.5°F (0.3°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is evaluated at 87.8°F (31°C).

What are the most humid months in Metuchen?

February, October and December, with an average relative humidity of 77%, are most humid months.

What is the average humidity in December in Metuchen?

In December, the average relative humidity in Metuchen, New Jersey, is 77%.

How much does it rain in Metuchen in December?

In Metuchen, New Jersey, during December, the rain falls for 10.2 days and regularly aggregates up to 2.64" (67mm) of precipitation.

How many days does it snow in December in Metuchen?

In Metuchen, New Jersey, in December, snow falls for 3.2 days, with typically accumulated 0.94" (24mm) of snow.

What is the month with the shortest days in Metuchen?

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

How many hours of daylight does Metuchen have in December?

The average day length in December in Metuchen is 9h and 20min.

When is the sunrise / sunset in December in Metuchen?

In December, on the first day of the month, sunrise is at 7:02 am and sunset at 4:31 pm. On the last day of the month, in Metuchen, New Jersey, sunrise is at 7:20 am and sunset at 4:40 pm EST.

How long on average sun shines in December in Metuchen?

The average sunshine duration in December in Metuchen, New Jersey, is 4.8h.

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

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

How high is the UV index in December in Metuchen?

In Metuchen, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
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
Metuchen, NJ

Average temperature in December - Metuchen, NJ
  • Average high temperature in December: 42.6°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in December: 32.5°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (25°F).

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Average pressure in December
Metuchen, NJ

Average pressure in December - Metuchen, 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
Metuchen, NJ

Average wind speed in December - Metuchen, NJ
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in December
Metuchen, NJ

Average humidity in December - Metuchen, NJ
  • Average humidity in December: 77%

The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is August (72%).

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Average rainfall in December
Metuchen, NJ

Average rainfall in December - Metuchen, NJ
  • Average rainfall in December: 2.64"

The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in December
Metuchen, NJ

Average rainfall days in December - Metuchen, NJ
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in December
Metuchen, NJ

Average snowfall in December - Metuchen, NJ
  • Average snowfall in December: 0.94"

The month with the highest snowfall is March (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Metuchen, NJ

Average snowfall days in December - Metuchen, NJ
  • Average snowfall days in December: 3.2 days

The month with the highest number of snowfall days is January (5.6 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
Metuchen, NJ

Average daylight in December / Average sunshine in December - Metuchen, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Metuchen, NJ

Average sunshine days in December - Metuchen, NJ
  • Average sunshine days in December: 18.2 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in December
Metuchen, NJ

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

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Average cloud cover in December
Metuchen, NJ

Average cloud cover in December - Metuchen, 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 32).

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Average visibility in December
Metuchen, NJ

Average visibility in December - Metuchen, 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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Metuchen, New Jersey, USA

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