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 sea temperature 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 involves a decrease in temperature, down from a fresh 51.3°F (10.7°C) in November to a wintry 42.1°F (5.6°C). December in Newark generally records an average low-temperature of 32.9°F (0.5°C).Humidity
February, May, October and December, with an average relative humidity of 76%, are the most humid months in Newark.Rainfall
The wettest months are July and December, with an average 3.19" (81mm) of rainfall.Snowfall
Months with snowfall are January through April, November and December. In Newark, during December, snow falls for 3.6 days and regularly aggregates up to 1.38" (35mm) of snow. Throughout the year, there are 20.9 snowfall days, and 8.94" (227mm) of snow is accumulated.Ocean temperature
In Newark, New Jersey, in December, the average water temperature is 47.1°F (8.4°C).Note: Beware when you're in 47.1°F (8.4°C) waters; 55.4°F (13°C) is chilling and anything below 50°F (10°C) could cause breathing hindrance and a sudden cold shock, given your physical condition.
Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December in Newark, New Jersey, sunrise is at 7:02 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:39 pm EST.
Sunshine
In Newark, the average sunshine in December 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 Newark. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
Is December cold in Newark?
What are the most humid months in Newark?
What is the average humidity in December in Newark?
What is the wettest month in Newark?
How many days does it rain in December in Newark?
How many days does it snow in December in Newark?
How cold is the water in December in Newark?
What is the month with the shortest days in Newark?
How many hours of daylight does Newark have in December?
When are sunrise and sunset in December in Newark?
How many hours of sunshine does Newark have in December?
When is the lowest UV index in Newark?
How high is the UV index in December in Newark?
Average temperature in December
Newark, NJ
- Average high temperature in December: 42.1°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in December
Newark, 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
Newark, NJ
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity in December
Newark, NJ
- Average humidity in December: 76%
The months with the highest relative humidity are February, May, October and December (76%).
The months with the lowest relative humidity are April and August (72%).
Average rainfall in December
Newark, NJ
- Average rainfall in December: 3.19"
The wettest months (with the highest rainfall) are July and December (3.19").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in December
Newark, NJ
- Average rainfall days in December: 11.9 days
The months with the highest number of rainy days are May and July (17.1 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in December
Newark, NJ
- Average snowfall in December: 1.38"
The month with the highest snowfall is March (3.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Newark, NJ
- Average snowfall days in December: 3.6 days
The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Newark, NJ
- Average sea temperature in December: 47.2°F
The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).
Average daylight in December /
Average sunshine in December
Newark, 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 18min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Newark, NJ
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in December
Newark, 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
Newark, NJ
- Average cloud cover in December: 47
The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in December
Newark, 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).
Newark, New Jersey, USA
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