December weather forecast
Leisure Knoll, NJ

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Weather in December

December, the first month of the winter in Leisure Knoll, is still a chilly month, with temperature in the range of an average low of 34.3°F (1.3°C) and an average high of 44.6°F (7°C).

Temperature

December is characterized by a slight reduction in average high-temperature, easing from a cool 52.7°F (11.5°C) in November to a chilly 44.6°F (7°C). Leisure Knoll cools down to an average low-temperature of 34.3°F (1.3°C) throughout the month of December.

Humidity

In Leisure Knoll, the average relative humidity in December is 78%.

Rainfall

In Leisure Knoll, in December, it is raining for 8.1 days, with typically 1.06" (27mm) of accumulated precipitation. In Leisure Knoll, during the entire year, the rain falls for 114.4 days and collects up to 10.28" (261mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Leisure Knoll, in December, during 2.2 snowfall days, 0.59" (15mm) of snow is typically accumulated. Throughout the year, there are 12.4 snowfall days, and 2.36" (60mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:00 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:42 pm EST.

Sunshine

In Leisure Knoll, the average sunshine in December is 5.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.
Note: In December, an average UV index of 2 transforms into the following instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.

Frequently asked questions

Is it cold in Leisure Knoll during December?

The high-temperature, in December, in Leisure Knoll, is 44.6°F (7°C), while the low-temperature averages to 34.3°F (1.3°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is computed to be 86°F (30°C).

What is the average humidity in December in Leisure Knoll?

The average relative humidity in December is 78%.

How many days does it rain in December in Leisure Knoll?

In Leisure Knoll, in December, it is raining for 8.1 days, with typically 1.06" (27mm) of accumulated precipitation.

How many days does it snow in December?

In Leisure Knoll, in December, snow falls for 2.2 days, with typically accumulated 0.59" (15mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

How many hours of daylight does Leisure Knoll have in December?

In Leisure Knoll, the average day length in December is 9h and 23min.

When is the sunrise / sunset in December in Leisure Knoll?

In December, on the first day of the month, sunrise is at 7:00 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:42 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration in Leisure Knoll is 5.1h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Leisure Knoll, NJ

Average temperature in December - Leisure Knoll, NJ
  • Average high temperature in December: 44.6°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 34.3°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in December
Leisure Knoll, NJ

Average pressure in December - Leisure Knoll, 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).

Average wind speed in December
Leisure Knoll, NJ

Average wind speed in December - Leisure Knoll, NJ
  • Average wind speed in December: 9.3mph

The windiest month (with the highest average wind speed) is March (10mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in December
Leisure Knoll, NJ

Average humidity in December - Leisure Knoll, NJ
  • Average humidity in December: 78%

The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in December
Leisure Knoll, NJ

Average rainfall in December - Leisure Knoll, NJ
  • Average rainfall in December: 1.06"

The wettest month (with the highest rainfall) is July (1.38").
The driest months (with the least rainfall) are January and September (0.55").

Average rainfall days in December
Leisure Knoll, NJ

Average rainfall days in December - Leisure Knoll, NJ
  • Average rainfall days in December: 8.1 days

The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is January (5.6 days).

Average snowfall in December
Leisure Knoll, NJ

Average snowfall in December - Leisure Knoll, NJ
  • Average snowfall in December: 0.59"

The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Leisure Knoll, NJ

Average snowfall days in December - Leisure Knoll, NJ
  • Average snowfall days in December: 2.2 days

The month with the highest number of snowfall days is January (3.7 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
Leisure Knoll, NJ

Average daylight in December / Average sunshine in December - Leisure Knoll, 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 48min).

Average sunshine days in December
Leisure Knoll, NJ

Average sunshine days in December - Leisure Knoll, NJ
  • Average sunshine days in December: 21.5 days

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is July (14.1 days).

Average UV index in December
Leisure Knoll, NJ

Average UV index in December - Leisure Knoll, 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, November and December (UV index 2).

Average cloud cover in December
Leisure Knoll, NJ

Average cloud cover in December - Leisure Knoll, NJ
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 30).

Average visibility in December
Leisure Knoll, NJ

Average visibility in December - Leisure Knoll, 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).

Leisure Knoll, New Jersey, USA

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