December weather forecastTranquility, NJ
December
Weather in December
December, the first month of the winter in Tranquility, is still a cold month, with an average temperature fluctuating between 27.3°F (-2.6°C) and 39°F (3.9°C).Temperature
With the beginning of December, the average high-temperature shows a decrease, transitioning from a chilly 48.4°F (9.1°C) in November to a cold 39°F (3.9°C). Tranquility, in December, experiences an average temperature of 27.3°F (-2.6°C) at night.Humidity
In Tranquility, the average relative humidity in December is 81%.Rainfall
In Tranquility, during December, the rain falls for 9.2 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Tranquility, during the entire year, the rain falls for 150.5 days and collects up to 25.08" (637mm) of precipitation.Snowfall
Months with snowfall in Tranquility are January through May, October through December. In Tranquility, in December, during 5.4 snowfall days, 2.05" (52mm) of snow is typically accumulated. Throughout the year, in Tranquility, New Jersey, there are 30.1 snowfall days, and 14.88" (378mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December in Tranquility, sunrise is at 7:05 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:41 pm EST.
Sunshine
In Tranquility, the average sunshine in December is 4.5h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 1 during December, leads to the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Tranquility, NJ
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
Tranquility, 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
Tranquility, NJ
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Tranquility, NJ
- Average humidity in December: 81%
The months with the highest relative humidity are February and October (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Tranquility, NJ
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is July (2.95").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in December
Tranquility, NJ
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in December
Tranquility, NJ
- Average snowfall in December: 2.05"
The month with the highest snowfall is March (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Tranquility, NJ
- Average snowfall days in December: 5.4 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Tranquility, NJ
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Tranquility, 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 June (11.3 days).
Average UV index in December
Tranquility, NJ
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Tranquility, NJ
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in December
Tranquility, NJ
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
