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's onset brings a slight change in high-temperatures, falling from a cool 50.9°F (10.5°C) in November to a wintry 41.9°F (5.5°C). Throughout the month of December, Roselle Park reports a steady low-temperature average of 32.4°F (0.2°C).Humidity
February and December, with an average relative humidity of 77%, are the most humid months in Roselle Park.Rainfall
In Roselle Park, in December, during 7.4 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Roselle Park, during the entire year, the rain falls for 117.5 days and collects up to 9.17" (233mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In December, it is snowing for 2.5 days. Throughout December, 0.2" (5mm) of snow is accumulated. In Roselle Park, during the entire year, snow falls for 16.7 days and aggregates up to 1.97" (50mm) of snow.Daylight
The month with the shortest days in Roselle Park 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 4:30 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:39 pm EST.
Sunshine
The average sunshine in December in Roselle Park is 4.9h.UV index
The months with the lowest UV index in Roselle Park are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 2 in December translates into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
Is December cold in Roselle Park?
What are the most humid months in Roselle Park?
What is the average humidity in December in Roselle Park?
How much does it rain in Roselle Park in December?
How much does it snow in Roselle Park in December?
What is the month with the shortest days in Roselle Park?
How many hours of daylight does Roselle Park have in December?
When are sunrise and sunset in December in Roselle Park?
How many hours of sunshine does Roselle Park have in December?
When is the lowest UV index in Roselle Park?
What is the UV index reading in December in Roselle Park?
Average temperature in December
Roselle Park, NJ
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in December: 32.4°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 (24.6°F).
Average pressure in December
Roselle Park, 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
Roselle Park, NJ
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in December
Roselle Park, NJ
- Average humidity in December: 77%
The months with the highest relative humidity are February and December (77%).
The months with the lowest relative humidity are April and August (72%).
Average rainfall in December
Roselle Park, NJ
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in December
Roselle Park, NJ
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in December
Roselle Park, NJ
- Average snowfall in December: 0.2"
The month with the highest snowfall is March (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Roselle Park, NJ
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is February (5.1 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
Roselle Park, 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 42min).
Average sunshine days in December
Roselle Park, NJ
- Average sunshine days in December: 20.6 days
The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is June (13.5 days).
Average UV index in December
Roselle Park, 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
Roselle Park, 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
Roselle Park, 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).
Roselle Park, New Jersey, USA
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