December weather forecast
Wayne, NJ

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Weather in December

December wraps up the year in Wayne with winter at its height and the return of snow. Temperatures vacillate from a maximum of 40.3°F (4.6°C) during the day to a cooler 29.5°F (-1.4°C) at night. The festive season can bring snowfall, transforming the city into a wintry wonderland perfect for holiday celebrations. This month provides the perfect opportunity to engage in winter sports or simply enjoy the serene beauty of a snow-covered landscape. Thus, December offers not just the end, but also a beautiful closure to the year's weather cycle.

Temperature

A subtle decrease in the average high-temperature marks December in Wayne, New Jersey, falling from November's cool 50.2°F (10.1°C) to a cold 40.3°F (4.6°C). December witnesses an average nighttime temperature of 29.5°F (-1.4°C).

Humidity

The months with the highest humidity are February, October and December, with an average relative humidity of 79%.

Rainfall

In Wayne, in December, it is raining for 11.3 days, with typically 3.03" (77mm) of accumulated precipitation. In Wayne, during the entire year, the rain falls for 164.2 days and collects up to 30.51" (775mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Wayne, during December, snow falls for 4.3 days and regularly aggregates up to 1.61" (41mm) of snow. Throughout the year, there are 27.2 snowfall days, and 11.5" (292mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:03 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:39 pm EST.

Sunshine

In Wayne, the average sunshine in December 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 of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

How cold is December in Wayne?

An average high-temperature, in December, in Wayne, is 40.3°F (4.6°C) and the average low-temperature is 29.5°F (-1.4°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in August is appraised at 87.8°F (31°C).

What are the most humid months in Wayne?

The months with the highest humidity are February, October and December, with an average relative humidity of 79%.

What is the average humidity in December in Wayne?

The average relative humidity in December in Wayne, New Jersey, is 79%.

How much does it rain in Wayne in December?

In Wayne, in December, during 11.3 rainfall days, 3.03" (77mm) of precipitation is typically accumulated.

How much does it snow in Wayne in December?

In December, in Wayne, it is snowing for 4.3 days. Throughout December, 1.61" (41mm) of snow is accumulated.

What is the month with the shortest days in Wayne?

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

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

In Wayne, New Jersey, the average day length in December is 9h and 17min.

When is the sunrise / sunset in December in Wayne?

On the first day of December, sunrise is at 7:03 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:39 pm EST.

How many hours of sunshine does Wayne have in December?

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

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

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

What is the UV index intensity in December in Wayne?

In December, the average daily maximum UV index in Wayne is 2. A UV Index estimate of 2, and below, represents 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
Wayne, NJ

Average temperature in December - Wayne, NJ
  • Average high temperature in December: 40.3°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.7°F).

  • Average low temperature in December: 29.5°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in December
Wayne, NJ

Average pressure in December - Wayne, 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
Wayne, NJ

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

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in December
Wayne, NJ

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

The months with the highest relative humidity are February, October and December (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in December
Wayne, NJ

Average rainfall in December - Wayne, NJ
  • Average rainfall in December: 3.03"

The wettest month (with the highest rainfall) is July (3.23").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in December
Wayne, NJ

Average rainfall days in December - Wayne, NJ
  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is January (8.8 days).

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Average snowfall in December
Wayne, NJ

Average snowfall in December - Wayne, NJ
  • Average snowfall in December: 1.61"

The month with the highest snowfall is February (3.46").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Wayne, NJ

Average snowfall days in December - Wayne, NJ
  • Average snowfall days in December: 4.3 days

The month with the highest number of snowfall days is January (7.6 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
Wayne, NJ

Average daylight in December / Average sunshine in December - Wayne, 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 5min

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 30min).

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Average sunshine days in December
Wayne, NJ

Average sunshine days in December - Wayne, NJ
  • Average sunshine days in December: 15.6 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (10.2 days).

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Average UV index in December
Wayne, NJ

Average UV index in December - Wayne, 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).

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Average cloud cover in December
Wayne, NJ

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

The months with the most cloud cover are February, March and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in December
Wayne, NJ

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

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

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Wayne, New Jersey, USA

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