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
The onset of December is marked by a decrease in temperature, transitioning from a frosty 48.6°F (9.2°C) in November to a cold 38.8°F (3.8°C). Uttertown, in the month of December, anticipates a consistent average low-temperature of 27.9°F (-2.3°C).Humidity
The months with the highest humidity are February, October and December, with an average relative humidity of 81%.Rainfall
In Uttertown, in December, it is raining for 9.2 days, with typically 2.32" (59mm) of accumulated precipitation. In Uttertown, during the entire year, the rain falls for 152.2 days and collects up to 26.34" (669mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Uttertown, in December, during 5.5 snowfall days, 2.68" (68mm) of snow is typically accumulated. In Uttertown, during the entire year, snow falls for 32 days and aggregates up to 17.05" (433mm) of snow.Daylight
The month with the shortest days 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 4:29 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:39 pm EST.
Sunshine
In December, the average sunshine 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 low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Around midday, solar radiation is most harmful; hence, exposure should be limited. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the most humid month?
What is the average humidity in December?
How much 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?
When are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Uttertown, NJ
- Average high temperature in December: 38.8°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in December: 27.9°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Uttertown, NJ
- Average pressure in December: 30.07"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
Uttertown, NJ
- Average wind speed in December: 7mph
The windiest months (with the highest average wind speed) are January, February and March (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Uttertown, NJ
- Average humidity in December: 81%
The months with the highest relative humidity are February, October and December (81%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Uttertown, NJ
- Average rainfall in December: 2.32"
The wettest month (with the highest rainfall) is July (2.95").
The driest months (with the least rainfall) are January, February and September (1.54").
Average rainfall days in December
Uttertown, NJ
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in December
Uttertown, NJ
- Average snowfall in December: 2.68"
The month with the highest snowfall is February (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Uttertown, NJ
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Uttertown, NJ
- Average daylight in December: 9h and 2min
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 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in December
Uttertown, NJ
- Average sunshine days in December: 16.8 days
The months with the most sunshine days are January and November (18.6 days).
The months with the least sunshine days are June and July (11.3 days).
Average UV index in December
Uttertown, 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
Uttertown, NJ
- Average cloud cover in December: 49
The months with the most cloud cover are February and March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Uttertown, NJ
- Average visibility in December: 6mi
The months with the highest visibility are April, August, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, September and October (5mi).
Uttertown, New Jersey, USA
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