December weather forecast
Lawnside, NJ

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Weather in December

December, the first month of the winter in Lawnside, is also a frosty month, with an average temperature fluctuating between 44.2°F (6.8°C) and 33.1°F (0.6°C).

Temperature

The transition into December indicates a reduction in the average high-temperature, down to a frosty 44.2°F (6.8°C) from November's cool 53.6°F (12°C). An average low-temperature of 33.1°F (0.6°C) is observed in Lawnside during the December nights.

Humidity

In Lawnside, the average relative humidity in December is 76%.

Rainfall

In December, in Lawnside, the rain falls for 7.3 days. Throughout December, 1.26" (32mm) of precipitation is accumulated. Throughout the year, there are 117 rainfall days, and 12.13" (308mm) of precipitation is accumulated.

Snowfall

January through March, May, November and December are months with snowfall. In Lawnside, in December, during 2 snowfall days, 0.24" (6mm) of snow is typically accumulated. Throughout the year, in Lawnside, there are 11.4 snowfall days, and 3.11" (79mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of December in Lawnside, New Jersey, sunrise is at 7:02 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:45 pm EST.

Sunshine

In Lawnside, the average sunshine in December is 5.1h.

UV index

The months with the lowest UV index in Lawnside are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. To guard against the harmful effects of the Sun, minimize exposure during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

How cold does it get in Lawnside in December?

In December, the average high-temperature and low-temperature in Lawnside are 44.2°F (6.8°C) and 33.1°F (0.6°C) respectively. The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in August is evaluated at 89.6°F (32°C).

What is the average humidity in December in Lawnside?

In December, the average relative humidity is 76%.

How much does it rain in Lawnside in December?

In Lawnside, in December, during 7.3 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

How many days does it snow in December in Lawnside?

In Lawnside, New Jersey, during December, snow falls for 2 days and regularly aggregates up to 0.24" (6mm) of snow.

What is the month with the shortest days in Lawnside?

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

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

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

When are sunrise and sunset in December in Lawnside?

On the first day of December, sunrise is at 7:02 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:45 pm EST.

How long on average sun shines in December in Lawnside?

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

What is the month with the lowest UV index in Lawnside?

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 Lawnside?

In December, the average daily maximum UV index in Lawnside, New Jersey, is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Lawnside, NJ

Average temperature in December - Lawnside, NJ
  • Average high temperature in December: 44.2°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 33.1°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in December
Lawnside, NJ

Average pressure in December - Lawnside, NJ
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in December
Lawnside, NJ

Average wind speed in December - Lawnside, NJ
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in December
Lawnside, NJ

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

The month with the highest relative humidity is October (77%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in December
Lawnside, NJ

Average rainfall in December - Lawnside, NJ
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is August (1.38").
The driest months (with the least rainfall) are January and September (0.67").

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Average rainfall days in December
Lawnside, NJ

Average rainfall days in December - Lawnside, NJ
  • Average rainfall days in December: 7.3 days

The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is January (6.5 days).

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Average snowfall in December
Lawnside, NJ

Average snowfall in December - Lawnside, NJ
  • Average snowfall in December: 0.24"

The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, June, July, August, September and October (0").

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Average snowfall days in December
Lawnside, NJ

Average snowfall days in December - Lawnside, NJ
  • Average snowfall days in December: 2 days

The month with the highest number of snowfall days is January (3.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Lawnside, NJ

Average daylight in December / Average sunshine in December - Lawnside, 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
Lawnside, NJ

Average sunshine days in December - Lawnside, NJ
  • Average sunshine days in December: 21.5 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is July (14.3 days).

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Average UV index in December
Lawnside, NJ

Average UV index in December - Lawnside, 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
Lawnside, NJ

Average cloud cover in December - Lawnside, 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
Lawnside, NJ

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

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