December weather forecast
Tenafly, NJ

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Weather in December

December, the first month of the winter in Tenafly, is still a cold month, with an average temperature ranging between max 41.7°F (5.4°C) and min 30.9°F (-0.6°C).

Temperature

As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a cool 50.9°F (10.5°C) to a wintry 41.7°F (5.4°C). During December, the average low-temperature in Tenafly is a freezing cold 30.9°F (-0.6°C).

Humidity

The average relative humidity in December in Tenafly is 76%.

Rainfall

December is the month with the most rainfall. Rain falls for 10.7 days and accumulates 3.46" (88mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Tenafly. In December, it is snowing for 4.6 days. Throughout December, 1.93" (49mm) of snow is accumulated. In Tenafly, during the entire year, snow falls for 25.5 days and aggregates up to 10.55" (268mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of December in Tenafly, sunrise is at 7:01 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:37 pm EST.

Sunshine

In December, the average sunshine in Tenafly is 4.7h.

UV index

The months with the lowest UV index in Tenafly are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: In December, an average UV index of 2 transforms into the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Tenafly in December?

In December, in Tenafly, the average high-temperature is 41.7°F (5.4°C), and the average low-temperature is 30.9°F (-0.6°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in December in Tenafly?

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

What is the wettest month in Tenafly?

December is the month with the most rainfall in Tenafly, New Jersey. Rain falls for 10.7 days and accumulates 3.46" (88mm) of precipitation.

How much does it rain in Tenafly in December?

In Tenafly, New Jersey, in December, it is raining for 10.7 days, with typically 3.46" (88mm) of accumulated precipitation.

How much does it snow in Tenafly in December?

In Tenafly, in December, snow falls for 4.6 days, with typically accumulated 1.93" (49mm) of snow.

What is the month with the shortest days in Tenafly?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

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

In Tenafly, the average day length in December is 9h and 17min.

When is the sunrise / sunset in December in Tenafly?

On the first day of December in Tenafly, New Jersey, sunrise is at 7:01 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:37 pm EST.

How long on average sun shines in December in Tenafly?

In December, the average sunshine duration in Tenafly, New Jersey, is 4.7h.

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

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

How high is the UV index in December in Tenafly?

In December, the average daily maximum UV index in Tenafly is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to the Sun's 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
Tenafly, NJ

Average temperature in December - Tenafly, NJ
  • Average high temperature in December: 41.7°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in December: 30.9°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

Average pressure in December
Tenafly, NJ

Average pressure in December - Tenafly, NJ
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Tenafly, NJ

Average wind speed in December - Tenafly, NJ
  • Average wind speed in December: 8mph

The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in December
Tenafly, NJ

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

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (68%).

Average rainfall in December
Tenafly, NJ

Average rainfall in December - Tenafly, NJ
  • Average rainfall in December: 3.46"

The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days in December
Tenafly, NJ

Average rainfall days in December - Tenafly, NJ
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8.2 days).

Average snowfall in December
Tenafly, NJ

Average snowfall in December - Tenafly, NJ
  • Average snowfall in December: 1.93"

The month with the highest snowfall is March (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Tenafly, NJ

Average snowfall days in December - Tenafly, NJ
  • Average snowfall days in December: 4.6 days

The month with the highest number of snowfall days is January (6.9 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
Tenafly, NJ

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in December
Tenafly, NJ

Average sunshine days in December - Tenafly, NJ
  • Average sunshine days in December: 16.8 days

The months with the most sunshine days are January and November (18.1 days).
The months with the least sunshine days are April and June (12.7 days).

Average UV index in December
Tenafly, NJ

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

Average cloud cover in December
Tenafly, NJ

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

The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Tenafly, NJ

Average visibility in December - Tenafly, 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).

Tenafly, New Jersey, USA

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