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
With the onset of December, South Bound Brook experiences a modest temperature adjustment, with the average high-temperature receding from a cool 50.9°F (10.5°C) in November to a cold 41.9°F (5.5°C). In South Bound Brook, an average low-temperature of 30.7°F (-0.7°C) is recorded during December nights.Humidity
The average relative humidity in December in South Bound Brook, New Jersey, is 78%.Rainfall
The month with the most rainfall in South Bound Brook is December, when the rain falls for 10.5 days and typically aggregates up to 3.31" (84mm) of precipitation.Snowfall
Months with snowfall in South Bound Brook are January through May, October through December. In South Bound Brook, in December, snow falls for 4.3 days, with typically accumulated 2.13" (54mm) of snow. In South Bound Brook, during the entire year, snow falls for 26.7 days and aggregates up to 12.68" (322mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:02 am and sunset at 4:31 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:41 pm EST.
Sunshine
In December, the average sunshine is 4.8h.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 hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 2 in December translates into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in South Bound Brook in December?
What is the average humidity in December in South Bound Brook?
What is the rainiest month in South Bound Brook?
How many days does it rain in December in South Bound Brook?
How many days does it snow in December in South Bound Brook?
What is the month with the shortest days in South Bound Brook?
What is the average length of the day in December in South Bound Brook?
When is the sunrise / sunset in December in South Bound Brook?
How long on average sun shines in December in South Bound Brook?
What is the month with the lowest UV index in South Bound Brook?
What is the UV index intensity in December in South Bound Brook?
Average temperature in December
South Bound Brook, NJ
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in December: 30.7°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in December
South Bound Brook, 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
South Bound Brook, NJ
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
South Bound Brook, NJ
- Average humidity in December: 78%
The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are April and August (73%).
Average rainfall in December
South Bound Brook, NJ
- Average rainfall in December: 3.31"
The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in December
South Bound Brook, NJ
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in December
South Bound Brook, NJ
- Average snowfall in December: 2.13"
The month with the highest snowfall is March (4.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
South Bound Brook, NJ
- Average snowfall days in December: 4.3 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
South Bound Brook, 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
South Bound Brook, NJ
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in December
South Bound Brook, 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
South Bound Brook, NJ
- Average cloud cover in December: 49
The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
South Bound Brook, NJ
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
South Bound Brook, New Jersey, USA
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