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
December is characterized by a reduction in the average high-temperature, from a cool 50.9°F (10.5°C) in November to an icy 41.9°F (5.5°C). Saddle Brook observes an average low-temperature of 31.5°F (-0.3°C) during December.Humidity
In Saddle Brook, the average relative humidity in December is 76%.Rainfall
In Saddle Brook, in December, during 11 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 149.3 rainfall days, and 22.36" (568mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In December, it is snowing for 3.7 days. Throughout December, 1.02" (26mm) of snow is accumulated. Throughout the year, there are 19.4 snowfall days, and 4.96" (126mm) of snow is accumulated.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 7:02 am and sunset at 4:29 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:38 pm EST.
Sunshine
The average sunshine in December 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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Saddle Brook have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Saddle Brook, NJ
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 31.5°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Saddle Brook, 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
Saddle Brook, NJ
- Average wind speed in December: 8.2mph
The windiest months (with the highest average wind speed) are January and March (8.8mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in December
Saddle Brook, NJ
- Average humidity in December: 76%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (70%).
Average rainfall in December
Saddle Brook, NJ
- Average rainfall in December: 2.32"
The wettest month (with the highest rainfall) is July (2.48").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days in December
Saddle Brook, NJ
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in December
Saddle Brook, NJ
- Average snowfall in December: 1.02"
The month with the highest snowfall is February (1.34").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Saddle Brook, NJ
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Saddle Brook, NJ
- Average daylight in December: 9h and 2min
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: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Saddle Brook, NJ
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in December
Saddle 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
Saddle Brook, NJ
- Average cloud cover in December: 48
The months with the most cloud cover are February, March and December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in December
Saddle Brook, 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).
Saddle Brook, New Jersey, USA
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