December weather forecast and climate
Wallington, NJ

The first month of the winter, December, is still a cold month in Wallington, New Jersey, with average temperature fluctuating between 31.1°F (-0.5°C) and 41.7°F (5.4°C).

Temperature

In Wallington, the average high-temperature drops, from a cool 50.9°F (10.5°C) in November, to a cold 41.7°F (5.4°C). In December, in Wallington, the average low-temperature is 31.1°F (-0.5°C).

Humidity

Months with the highest humidity are February and December, with an average relative humidity of 77%.

Rainfall

In Wallington, during 10.4 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. In Wallington, New Jersey, during the entire year, the rain falls for 150.9 days and collects up to 25.28" (642mm) of precipitation.

Snowfall

Months with snowfall in Wallington are January through April, November and December. In December, in Wallington, it is snowing for 3.5 days. Throughout December, 1.14" (29mm) of snow is accumulated. Throughout the year, in Wallington, there are 20 snowfall days, and 8.07" (205mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9.3h of daylight.

Sunshine

In December, the average sunshine is 4.9h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Wallington. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Wallington?

In December, the average high-temperature is 41.7°F (5.4°C), and the average low-temperature is 31.1°F (-0.5°C).

What is the most humid month in Wallington?

Months with the highest humidity are February and December, with an average relative humidity of 77%.

What is the average humidity in December in Wallington?

In December, the average relative humidity is 77%.

How much does it rain in Wallington in December?

In Wallington, New Jersey, in December, during 10.4 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

How much does it snow in Wallington in December?

In Wallington, New Jersey, in December, during 3.5 snowfall days, 1.14" (29mm) of snow is typically accumulated.

What is the month with the shortest days in Wallington?

December has the shortest days of the year in Wallington, New Jersey, with an average of 9.3h of daylight.

How many hours of daylight does Wallington have in December?

The average length of the day in December in Wallington is 9.3h.

How many hours of sunshine does Wallington have in December?

In Wallington, the average sunshine in December is 4.9h.

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

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

What is the UV index reading in December in Wallington?

In December, the average daily maximum UV index in Wallington is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to the UV radiation.
Average temperature in December - Wallington, NJ
  • Average high temperature in December: 5.4°C

The warmest month (with the highest average high temperature) is July (29°C).
The month with the lowest average high temperature is January (1.9°C).

  • Average low temperature in December: -0.5°C

The month with the highest average low temperature is July (19.9°C).
The coldest month (with the lowest average low temperature) is January (-4.4°C).

Average pressure in December - Wallington, NJ
  • Average pressure in December: 1018.4mbar

The month with the highest atmospheric pressure is November (1019.5mbar).
The month with the lowest atmospheric pressure is June (1013.6mbar).

Average wind speed in December - Wallington, NJ
  • Average wind speed in December: 13.2km/h

The windiest months (with the highest average wind speed) are January and March (14.1km/h).
The calmest month (with the lowest average wind speed) is July (9.3km/h).

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

Months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is August (71%).

Average rainfall in December - Wallington, NJ
  • Average rainfall in December: 60mm

The wettest month (with the highest rainfall) is July (74mm).
The driest month (with the least rainfall) is February (37mm).

Average rainfall days in December - Wallington, NJ
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is January (7.5 days).

Average snowfall in December - Wallington, NJ
  • Average snowfall in December: 29mm

The month with the highest snowfall is March (72mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December - Wallington, NJ
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is February (5.9 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Wallington, NJ
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 4.9h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

Average sunshine days in December - Wallington, NJ
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.5 days).

Average UV index in December - Wallington, NJ
  • Average UV index in December: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December - Wallington, NJ
  • Average cloud cover in December: 47

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December - Wallington, NJ
  • Average visibility in December: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).