Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The arrival of December is marked by a minor reduction in average high-temperature, sliding from a fresh 52.3°F (11.3°C) in November to a chilly 44.1°F (6.7°C). In December, Ardena encounters an average low-temperature of 34.7°F (1.5°C) during the night.Humidity
The average relative humidity in December is 77%.Rainfall
In Ardena, during December, the rain falls for 12.6 days and regularly aggregates up to 3.39" (86mm) of precipitation. Throughout the year, there are 162 rainfall days, and 32.2" (818mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Ardena, in December, during 3.2 snowfall days, 1.42" (36mm) of snow is typically accumulated. In Ardena, during the entire year, snow falls for 17 days and aggregates up to 5.55" (141mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Ardena.On the first day of December, sunrise is at 7:00 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:41 pm EST.
Sunshine
In December, the average sunshine is 5.1h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. 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
How cold is December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Ardena have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Ardena, NJ
- Average high temperature in December: 44.1°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in December
Ardena, 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
Ardena, NJ
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Ardena, NJ
- Average humidity in December: 77%
The months with the highest relative humidity are May and June (79%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall in December
Ardena, NJ
- Average rainfall in December: 3.39"
The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in December
Ardena, NJ
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in December
Ardena, NJ
- Average snowfall in December: 1.42"
The month with the highest snowfall is March (1.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Ardena, NJ
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ardena, 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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Ardena, NJ
- Average sunshine days in December: 15.4 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in December
Ardena, 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, March, November and December (UV index 2).
Average cloud cover in December
Ardena, NJ
- Average cloud cover in December: 46
The months with the most cloud cover are February, March and December (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in December
Ardena, 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).
Ardena, New Jersey, USA
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