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 sees a slight reduction in average high-temperature, with a shift from a fresh 54°F (12.2°C) in November to a frosty 45.3°F (7.4°C). Rosenhayn in December anticipates an average nighttime temperature of 34.5°F (1.4°C).Humidity
The average relative humidity in December is 77%.Rainfall
In December, the rain falls for 7.8 days. Throughout December, 0.87" (22mm) of precipitation is accumulated. Throughout the year, there are 105.4 rainfall days, and 8.03" (204mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Rosenhayn, in December, snow falls for 1.4 days, with typically accumulated 0.24" (6mm) of snow. In Rosenhayn, during the entire year, snow falls for 10.9 days and aggregates up to 1.38" (35mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:02 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:47 pm EST.
Sunshine
In Rosenhayn, the average sunshine in December is 5.2h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days in Rosenhayn?
How many hours of daylight does Rosenhayn have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Rosenhayn have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Rosenhayn, NJ
- Average high temperature in December: 45.3°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in December: 34.5°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 (27.7°F).
Average pressure in December
Rosenhayn, NJ
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Rosenhayn, NJ
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in December
Rosenhayn, NJ
- Average humidity in December: 77%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Rosenhayn, NJ
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is August (0.94").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in December
Rosenhayn, NJ
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is November (5.1 days).
Average snowfall in December
Rosenhayn, NJ
- Average snowfall in December: 0.24"
The month with the highest snowfall is January (0.43").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Rosenhayn, NJ
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is January (3.4 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
Rosenhayn, NJ
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Rosenhayn, NJ
- Average sunshine days in December: 21.3 days
The month with the most sunshine days is November (23.1 days).
The month with the least sunshine days is July (14.1 days).
Average UV index in December
Rosenhayn, NJ
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Rosenhayn, NJ
- Average cloud cover in December: 45
The months with the most cloud cover are February and March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in December
Rosenhayn, 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).
Rosenhayn, New Jersey, USA
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