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
Jersey City's transition into December involves a gentle shift in temperature, receding from a fresh 51.3°F (10.7°C) in November to a cold 42.3°F (5.7°C). In December, Jersey City reports a consistent average low-temperature of 32.7°F (0.4°C) during the nights.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 76%.Rainfall
December is the month with the most rainfall. Rain falls for 12.5 days and accumulates 3.74" (95mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Jersey City, during December, snow falls for 3.7 days and regularly aggregates up to 1.77" (45mm) of snow. Throughout the year, in Jersey City, there are 22.9 snowfall days, and 10.63" (270mm) of snow is accumulated.Ocean temperature
In Jersey City, the average seawater temperature in December is 47.1°F (8.4°C).Note: Staying in 47.1°F (8.4°C) waters for just a few moments at 55.4°F (13°C) can be harrowing, and below 50°F (10°C) poses breathing and cold shock risks, depending on individual tolerance.
Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:01 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 Jersey City, 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 Jersey City. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
How cold is December in Jersey City?
What is the most humid month in Jersey City?
What is the average humidity in December in Jersey City?
What is the wettest month in Jersey City?
How much does it rain in Jersey City in December?
How many days does it snow in December in Jersey City?
What is the ocean temperature in December in Jersey City?
What is the month with the shortest days in Jersey City?
How many hours of daylight does Jersey City have in December?
When are sunrise and sunset in December in Jersey City?
How long on average sun shines in December in Jersey City?
What are the months with the lowest UV index in Jersey City?
What is the UV index reading in December in Jersey City?
Average temperature in December
Jersey City, NJ
- Average high temperature in December: 42.3°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in December: 32.7°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in December
Jersey City, NJ
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Jersey City, NJ
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in December
Jersey City, NJ
- Average humidity in December: 76%
The months with the highest relative humidity are February and December (76%).
The month with the lowest relative humidity is August (71%).
Average rainfall in December
Jersey City, NJ
- Average rainfall in December: 3.74"
The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in December
Jersey City, NJ
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (9 days).
Average snowfall in December
Jersey City, NJ
- Average snowfall in December: 1.77"
The month with the highest snowfall is March (3.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Jersey City, NJ
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Jersey City, 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
Jersey City, 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
Jersey City, NJ
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is January (17.8 days).
The months with the least sunshine days are June and July (11.3 days).
Average UV index in December
Jersey City, 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
Jersey City, 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
Jersey City, 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).
Jersey City, New Jersey, USA
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