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
A decrease in the average high-temperature is observed during December, shifting from a fresh 50.4°F (10.2°C) in November to a cold 41.2°F (5.1°C). The average low-temperature, in December, is a subzero cold 29.7°F (-1.3°C).Humidity
In December, the average relative humidity is 79%.Rainfall
In Liberty Corner, in December, during 9.9 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, there are 155.7 rainfall days, and 27.64" (702mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In Liberty Corner, in December, snow falls for 3.7 days, with typically accumulated 1.34" (34mm) of snow. In Liberty Corner, during the entire year, snow falls for 24.7 days and aggregates up to 10.83" (275mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:03 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:41 pm EST.
Sunshine
In December, the average sunshine in Liberty Corner is 4.8h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
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?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Liberty Corner, NJ
- Average high temperature in December: 41.2°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in December
Liberty Corner, 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
Liberty Corner, NJ
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
Liberty Corner, NJ
- Average humidity in December: 79%
The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Liberty Corner, NJ
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is July (3.11").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in December
Liberty Corner, NJ
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Liberty Corner, NJ
- Average snowfall in December: 1.34"
The month with the highest snowfall is March (4.09").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Liberty Corner, NJ
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is January (7.2 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
Liberty Corner, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Liberty Corner, NJ
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in December
Liberty Corner, 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
Liberty Corner, NJ
- Average cloud cover in December: 49
The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Liberty Corner, NJ
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, July, August, October, November and December (6mi).
The months with the lowest visibility are May, June and September (5mi).
Liberty Corner, New Jersey, USA
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