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
During the shift to December in Trenton, a minor reduction in average high-temperature is observed, shifting from a cool 52°F (11.1°C) in November to a frosty 43.2°F (6.2°C). An average low-temperature of 32°F (0°C) marks the month of December in Trenton, New Jersey.Humidity
The average relative humidity in December is 77%.Rainfall
In Trenton, New Jersey, in December, during 11.2 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In Trenton, during the entire year, the rain falls for 156.8 days and collects up to 31.81" (808mm) of precipitation.Snowfall
Months with snowfall in Trenton, New Jersey, are January through May, October through December. In Trenton, New Jersey, during December, snow falls for 3 days and regularly aggregates up to 1.3" (33mm) of snow. Throughout the year, there are 16.6 snowfall days, and 8.86" (225mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:02 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:43 pm EST.
Sunshine
In December, the average sunshine is 5h.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 value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is December in Trenton?
What is the average humidity in December in Trenton?
How much does it rain in Trenton in December?
How much does it snow in Trenton in December?
What is the month with the shortest days in Trenton?
What is the average length of the day in December in Trenton?
When is the sunrise / sunset in December in Trenton?
How long on average sun shines in December in Trenton?
What is the month with the lowest UV index in Trenton?
What is the UV index intensity in December in Trenton?
Average temperature in December
Trenton, NJ
- Average high temperature in December: 43.2°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 32°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in December
Trenton, 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
Trenton, NJ
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Trenton, NJ
- Average humidity in December: 77%
The months with the highest relative humidity are February and October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Trenton, NJ
- Average rainfall in December: 3.15"
The wettest month (with the highest rainfall) is July (3.74").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in December
Trenton, NJ
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in December
Trenton, NJ
- Average snowfall in December: 1.3"
The month with the highest snowfall is March (2.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Trenton, NJ
- Average snowfall days in December: 3 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Trenton, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Trenton, NJ
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in December
Trenton, 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, March, November and December (UV index 2).
Average cloud cover in December
Trenton, NJ
- Average cloud cover in December: 47
The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in December
Trenton, NJ
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Trenton, New Jersey, USA
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