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
The arrival of December signals a subtle shift in temperature, down from a cool 53.1°F (11.7°C) in November to a chilly 44.6°F (7°C). During the nights in December, an average low-temperature of 33.4°F (0.8°C) is observed.Humidity
The average relative humidity in December is 77%.Rainfall
In Four Mile, in December, during 9 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, there are 120.9 rainfall days, and 12.8" (325mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Four Mile. In Four Mile, in December, during 2.5 snowfall days, 0.59" (15mm) of snow is typically accumulated. In Four Mile, during the entire year, snow falls for 14.6 days and aggregates up to 3.15" (80mm) 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 7:01 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:43 pm EST.
Sunshine
In December, the average sunshine is 5.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the average humidity in December?
How many days does it rain in December in Four Mile?
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 is the sunrise / sunset in December?
How many hours of sunshine does Four Mile have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Four Mile, NJ
- Average high temperature in December: 44.6°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in December: 33.4°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 (26.2°F).
Average pressure in December
Four Mile, NJ
- Average pressure in December: 30.09"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
Four Mile, NJ
- Average wind speed in December: 8.1mph
The windiest months (with the highest average wind speed) are February, March and April (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in December
Four Mile, NJ
- Average humidity in December: 77%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Four Mile, NJ
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in December
Four Mile, NJ
- Average rainfall days in December: 9 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in December
Four Mile, NJ
- Average snowfall in December: 0.59"
The month with the highest snowfall is March (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Four Mile, NJ
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (4.5 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
Four Mile, 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 24min).
- Average sunshine in December: 5h and 1min
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 54min).
Average sunshine days in December
Four Mile, NJ
- Average sunshine days in December: 18.9 days
The months with the most sunshine days are January and November (21.3 days).
The month with the least sunshine days is July (13 days).
Average UV index in December
Four Mile, 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, November and December (UV index 2).
Average cloud cover in December
Four Mile, NJ
- Average cloud cover in December: 46
The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in December
Four Mile, 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).
Four Mile, New Jersey, USA
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