December weather forecastMount Laurel, NJ
December
Weather in December
December, the first month of the winter in Mount Laurel, is also a frosty month, with temperature in the range of an average high of 44.2°F (6.8°C) and an average low of 32.7°F (0.4°C).Temperature
December ushers in a minute temperature change, with average high-temperatures reducing from November's fresh 53.1°F (11.7°C) to a chilly 44.2°F (6.8°C). Mount Laurel records an average low of 32.7°F (0.4°C) throughout the nights in December.Humidity
In Mount Laurel, the average relative humidity in December is 77%.Rainfall
In December, the rain falls for 8.1 days. Throughout December, 1.18" (30mm) of precipitation is accumulated. Throughout the year, there are 120.1 rainfall days, and 11.81" (300mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Mount Laurel, in December, snow falls for 2.3 days, with typically accumulated 0.31" (8mm) of snow. Throughout the year, there are 12.9 snowfall days, and 3.23" (82mm) of snow is accumulated.Daylight
The month with the shortest days in Mount Laurel is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:02 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:44 pm EST.
Sunshine
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. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. To guard against the harmful effects of the Sun, minimize exposure during midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mount Laurel, NJ
- Average high temperature in December: 44.2°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in December: 32.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in December
Mount Laurel, 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).
Average wind speed in December
Mount Laurel, NJ
- Average wind speed in December: 7.5mph
The windiest months (with the highest average wind speed) are March and April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Mount Laurel, NJ
- Average humidity in December: 77%
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Mount Laurel, NJ
- Average rainfall in December: 1.18"
The wettest months (with the highest rainfall) are July and August (1.42").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in December
Mount Laurel, NJ
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is July (14.2 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
Mount Laurel, NJ
- Average snowfall in December: 0.31"
The months with the highest snowfall are February and March (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Mount Laurel, NJ
- Average snowfall days in December: 2.3 days
The month with the highest number of snowfall days is January (3.9 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
Mount Laurel, NJ
- Average daylight in December: 9h and 24min
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 6min
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).
Average sunshine days in December
Mount Laurel, NJ
- Average sunshine days in December: 20.2 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (13 days).
Average UV index in December
Mount Laurel, 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).
Average cloud cover in December
Mount Laurel, NJ
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Mount Laurel, 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).
