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
December brings a decrease in the average high-temperature, shifting from a frosty 48.4°F (9.1°C) in November to a cold 38.3°F (3.5°C). An average low-temperature of 26.8°F (-2.9°C) is observed in Van Syckles during the December nights.Humidity
The months with the highest humidity are February, October and December, with an average relative humidity of 82%.Rainfall
In Van Syckles, in December, it is raining for 11.9 days, with typically 3.03" (77mm) of accumulated precipitation. Throughout the year, there are 164.9 rainfall days, and 31.89" (810mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Van Syckles, New Jersey, during December, snow falls for 6.4 days and regularly aggregates up to 3.39" (86mm) of snow. Throughout the year, in Van Syckles, there are 36.9 snowfall days, and 19.84" (504mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:05 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:39 pm EST.
Sunshine
In Van Syckles, the average sunshine in December is 4.6h.UV index
The month with the lowest UV index in Van Syckles is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 1 in December translates into the following instructions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Van Syckles have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Van Syckles have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Van Syckles, NJ
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32.7°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Van Syckles, 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
Van Syckles, NJ
- Average wind speed in December: 6.9mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Van Syckles, NJ
- Average humidity in December: 82%
The months with the highest relative humidity are February, October and December (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Van Syckles, NJ
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Van Syckles, NJ
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in December
Van Syckles, NJ
- Average snowfall in December: 3.39"
The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Van Syckles, NJ
- Average snowfall days in December: 6.4 days
The months with the highest number of snowfall days are January and February (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Van Syckles, NJ
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Van Syckles, NJ
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is April (10.4 days).
Average UV index in December
Van Syckles, NJ
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Van Syckles, NJ
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Van Syckles, NJ
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Van Syckles, New Jersey, USA
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