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
The transition into December in Newark indicates a reduction in the average high-temperature, down to an icy 42.1°F from November's fresh 51.3°F. Newark registers a consistent average low-temperature of 32.9°F during December.Humidity
February, May, October and December, with an average relative humidity of 76%, are the most humid months.Rainfall
The wettest months in Newark, New Jersey, are July and December, with an average 3.19" of rainfall.Snowfall
Months with snowfall are January through April, November and December. In Newark, in December, snow falls for 3.6 days, with typically accumulated 1.38" of snow. Throughout the year, in Newark, there are 20.9 snowfall days, and 8.94" of snow is accumulated.Ocean temperature
In Newark, New Jersey, in December, the average water temperature is 47.1°F.Note: Staying in 47.1°F waters for just a few moments at 55.4°F can be harrowing, and below 50°F poses breathing and cold shock risks, depending on individual tolerance.
Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:01 am and sunset at 4:30 pm. On the last day of December, in Newark, sunrise is at 7:20 am and sunset at 4:38 pm EST.
Sunshine
In December, the average sunshine in Newark 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 unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 2 during December translates into the following directions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
FAQ
How cold does it get in Newark in December?
What are the most humid months in Newark?
What is the average humidity in December in Newark?
What is the rainiest month in Newark?
How much does it rain in Newark in December?
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?
What is the average length of the day in December in Newark?
When is the sunrise / sunset in December in Newark?
How many hours of sunshine does Newark have in December?
What are the months with the lowest UV index in Newark?
What is the UV index reading 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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