December weather forecast
Moores Mill, NJ

Share

Weather in December

The first month of the winter, December, is also a frosty month in Moores Mill, New Jersey, with an average temperature varying between 44.4°F (6.9°C) and 33.1°F (0.6°C).

Temperature

The start of December comes with a small reduction in the average high-temperature, subtly receding from a fresh 53.2°F (11.8°C) in November to a frosty 44.4°F (6.9°C). Throughout the month of December, the average temperature dips to a wintry 33.1°F (0.6°C) at night.

Humidity

In Moores Mill, New Jersey, the average relative humidity in December is 77%.

Rainfall

In Moores Mill, in December, during 8.1 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, in Moores Mill, there are 103.5 rainfall days, and 8.62" (219mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In Moores Mill, New Jersey, during December, snow falls for 2.5 days and regularly aggregates up to 0.35" (9mm) of snow. Throughout the year, in Moores Mill, there are 13.3 snowfall days, and 1.97" (50mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Moores Mill, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:01 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:44 pm EST.

Sunshine

In Moores Mill, the average sunshine in December is 5.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Moores Mill. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 2 suggests this advice:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
[Resources]

Frequently asked questions

How cold is it in Moores Mill in December?

Moores Mill in December has an average high-temperature of 44.4°F (6.9°C) and an average low-temperature of 33.1°F (0.6°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is evaluated at 89.6°F (32°C).

What is the average humidity in December in Moores Mill?

In Moores Mill, the average relative humidity in December is 77%.

How many days does it rain in December in Moores Mill?

In Moores Mill, during December, the rain falls for 8.1 days and regularly aggregates up to 0.98" (25mm) of precipitation.

How many days does it snow in December in Moores Mill?

In December, in Moores Mill, New Jersey, it is snowing for 2.5 days. Throughout December, 0.35" (9mm) of snow is accumulated.

What is the month with the shortest days in Moores Mill?

December has the shortest days of the year in Moores Mill, New Jersey, with an average of 9h and 24min of daylight.

What is the average length of the day in December in Moores Mill?

The average day length in December is 9h and 24min.

What time are sunrise and sunset in December in Moores Mill?

On the first day of December in Moores Mill, New Jersey, sunrise is at 7:01 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:44 pm EST.

How long on average sun shines in December in Moores Mill?

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

What is the month with the lowest UV index in Moores Mill?

The months with the lowest UV index in Moores Mill, New Jersey, are January, February, November and December, with an average maximum UV index of 2.

What is the UV index reading in December in Moores Mill?

In Moores Mill, New Jersey, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Moores Mill, NJ

Average temperature in December - Moores Mill, NJ
  • Average high temperature in December: 44.4°F

The warmest month (with the highest average high temperature) is July (84.6°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 (68.2°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

[Resources]

Average pressure in December
Moores Mill, NJ

Average pressure in December - Moores Mill, NJ
  • Average pressure in December: 30.09"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).

[Resources]

Average wind speed in December
Moores Mill, NJ

Average wind speed in December - Moores Mill, NJ
  • Average wind speed in December: 7.9mph

The windiest months (with the highest average wind speed) are March and April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

[Resources]

Average humidity in December
Moores Mill, NJ

Average humidity in December - Moores Mill, NJ
  • Average humidity in December: 77%

The months with the highest relative humidity are May, June and October (78%).
The month with the lowest relative humidity is April (72%).

[Resources]

Average rainfall in December
Moores Mill, NJ

Average rainfall in December - Moores Mill, NJ
  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is July (1.14").
The driest months (with the least rainfall) are January and September (0.39").

[Resources]

Average rainfall days in December
Moores Mill, NJ

Average rainfall days in December - Moores Mill, NJ
  • Average rainfall days in December: 8.1 days

The month with the highest number of rainy days is July (12.5 days).
The month with the least rainy days is January (5.4 days).

[Resources]

Average snowfall in December
Moores Mill, NJ

Average snowfall in December - Moores Mill, NJ
  • Average snowfall in December: 0.35"

The months with the highest snowfall are January and March (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").

[Resources]

Average snowfall days in December
Moores Mill, NJ

Average snowfall days in December - Moores Mill, NJ
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

[Resources]

Average daylight in December /
Average sunshine in December
Moores Mill, NJ

Average daylight in December / Average sunshine in December - Moores Mill, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

[Resources]

Average sunshine days in December
Moores Mill, NJ

Average sunshine days in December - Moores Mill, NJ
  • Average sunshine days in December: 20.3 days

The month with the most sunshine days is November (22.7 days).
The month with the least sunshine days is July (14.5 days).

[Resources]

Average UV index in December
Moores Mill, NJ

Average UV index in December - Moores Mill, 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).

[Resources]

Average cloud cover in December
Moores Mill, NJ

Average cloud cover in December - Moores Mill, NJ
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

[Resources]

Average visibility in December
Moores Mill, NJ

Average visibility in December - Moores Mill, 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).

[Resources]

Moores Mill, New Jersey, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location