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 comes with a drop in the average high-temperature, falling from November's cool 50.4°F (10.2°C) to an icy 41.2°F (5.1°C). An average low-temperature of 29.7°F (-1.3°C) is expected during December.Humidity
February, October and December, with an average relative humidity of 80%, are the most humid months.Rainfall
In Lebanon, in December, it is raining for 11.4 days, with typically 2.91" (74mm) of accumulated precipitation. Throughout the year, there are 160.3 rainfall days, and 29.06" (738mm) of precipitation is accumulated.Snowfall
Months with snowfall in Lebanon are January through May, October through December. In December, it is snowing for 4.2 days. Throughout December, 1.89" (48mm) of snow is accumulated. Throughout the year, there are 27 snowfall days, and 12.2" (310mm) of snow is accumulated.Daylight
The month with the shortest days in Lebanon, New Jersey, is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:04 am and sunset at 4:32 pm. On the last day of December, in Lebanon, sunrise is at 7:22 am and sunset at 4:42 pm EST.
Sunshine
The average sunshine in December is 4.8h.UV index
January through March, 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 radiation for average individuals.Note: The UV index of 2 during December leads to these advisories:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Lebanon?
What is the most humid month in Lebanon?
What is the average humidity in December in Lebanon?
How much does it rain in Lebanon in December?
How many days does it snow in December in Lebanon?
What is the month with the shortest days in Lebanon?
What is the average length of the day in December in Lebanon?
What time are sunrise and sunset in December in Lebanon?
How many hours of sunshine does Lebanon have in December?
When is the lowest UV index in Lebanon?
How high is the UV index in December in Lebanon?
Average temperature in December
Lebanon, 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 (35.2°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in December
Lebanon, 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
Lebanon, NJ
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Lebanon, NJ
- Average humidity in December: 80%
The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Lebanon, NJ
- Average rainfall in December: 2.91"
The wettest month (with the highest rainfall) is July (2.95").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Lebanon, NJ
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (9 days).
Average snowfall in December
Lebanon, NJ
- Average snowfall in December: 1.89"
The month with the highest snowfall is March (3.78").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lebanon, NJ
- Average snowfall days in December: 4.2 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lebanon, 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 36min).
Average sunshine days in December
Lebanon, NJ
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in December
Lebanon, 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
Lebanon, NJ
- Average cloud cover in December: 49
The months with the most cloud cover are February and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in December
Lebanon, NJ
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, November and December (6mi).
The months with the lowest visibility are May, August, September and October (5mi).
Lebanon, New Jersey, USA
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