December weather forecastBelleville, NJ
December
Weather in December
December, the first month of the winter in Belleville, is also a wintry month, with an average temperature ranging between max 41.9°F (5.5°C) and min 32.7°F (0.4°C).Temperature
Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a fresh 50.9°F (10.5°C) to a cold 41.9°F (5.5°C). December witnesses an average nighttime temperature of 32.7°F (0.4°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 77%.Rainfall
December is the month with the most rainfall. Rain falls for 12.2 days and accumulates 3.23" (82mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Belleville, during December, snow falls for 3.7 days and regularly aggregates up to 1.42" (36mm) of snow. Throughout the year, there are 22.7 snowfall days, and 8.9" (226mm) of snow is accumulated.Daylight
The month with the shortest days in Belleville is December, with an average of 9h and 18min of daylight.On the first day of December in Belleville, 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
The average sunshine in December in Belleville is 5h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Belleville, NJ
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in December: 32.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in December
Belleville, 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
Belleville, NJ
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in December
Belleville, NJ
- Average humidity in December: 77%
The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is August (71%).
Average rainfall in December
Belleville, NJ
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is December (3.23").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
Belleville, NJ
- Average rainfall days in December: 12.2 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in December
Belleville, NJ
- Average snowfall in December: 1.42"
The month with the highest snowfall is March (2.72").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Belleville, NJ
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Belleville, NJ
- Average daylight in December: 9h and 18min
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: 5h and 0min
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 42min).
Average sunshine days in December
Belleville, NJ
- Average sunshine days in December: 15.1 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in December
Belleville, 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
Belleville, NJ
- Average cloud cover in December: 47
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Belleville, 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).
