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 arrival subtly correlates with a reduction in the average high-temperature, down from a fresh 52.7°F (11.5°C) in November to a chilly 44.2°F (6.8°C). During the month of December, the nighttime temperature falls to an average of 32.5°F (0.3°C).Humidity
The months with the highest humidity are February, October and December, with an average relative humidity of 77%.Rainfall
December is the month with the most rainfall. Rain falls for 11 days and accumulates 2.99" (76mm) of precipitation.Snowfall
Months with snowfall in Willingboro, New Jersey, are January through May, November and December. In Willingboro, New Jersey, in December, during 3.1 snowfall days, 1.18" (30mm) of snow is typically accumulated. In Willingboro, New Jersey, during the entire year, snow falls for 19.1 days and aggregates up to 8.9" (226mm) of snow.Daylight
The month with the shortest days in Willingboro is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:02 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:44 pm EST.
Sunshine
The average sunshine in December is 5h.UV index
The months with the lowest UV index in Willingboro are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold does it get in Willingboro in December?
What are the most humid months in Willingboro?
What is the average humidity in December in Willingboro?
What is the rainiest month in Willingboro?
How many days does it rain in December in Willingboro?
How many days does it snow in December in Willingboro?
What is the month with the shortest days in Willingboro?
What is the average length of the day in December in Willingboro?
What time are sunrise and sunset in December in Willingboro?
How long on average sun shines in December in Willingboro?
When is the lowest UV index in Willingboro?
What is the UV index intensity in December in Willingboro?
Average temperature in December
Willingboro, NJ
- Average high temperature in December: 44.2°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in December: 32.5°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 (25.5°F).
Average pressure in December
Willingboro, NJ
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Willingboro, NJ
- Average wind speed in December: 7.6mph
The windiest months (with the highest average wind speed) are March and April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Willingboro, NJ
- Average humidity in December: 77%
The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Willingboro, NJ
- Average rainfall in December: 2.99"
The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in December
Willingboro, NJ
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in December
Willingboro, NJ
- Average snowfall in December: 1.18"
The month with the highest snowfall is March (2.95").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Willingboro, NJ
- Average snowfall days in December: 3.1 days
The month with the highest number of snowfall days is January (6 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
Willingboro, 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 0min
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
Willingboro, NJ
- Average sunshine days in December: 17.1 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in December
Willingboro, 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
Willingboro, NJ
- Average cloud cover in December: 48
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Willingboro, 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).
Willingboro, New Jersey, USA
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