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
Start of December brings a slight shift in the average high-temperature, dipping a bit from November's cool 52.7°F (11.5°C) to a frosty 44.4°F (6.9°C). In Silverton, December nights maintain a consistent temperature, with an average low of 36.1°F (2.3°C).Humidity
The average relative humidity in December is 76%.Rainfall
In Silverton, during December, the rain falls for 10 days and regularly aggregates up to 1.69" (43mm) of precipitation. In Silverton, during the entire year, the rain falls for 137.7 days and collects up to 19.09" (485mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Silverton, in December, snow falls for 2.4 days, with typically accumulated 0.79" (20mm) of snow. In Silverton, during the entire year, snow falls for 13.8 days and aggregates up to 3.27" (83mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 6:59 am and sunset at 4:31 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:41 pm EST.
Sunshine
The average sunshine in December is 5.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during December leads to these instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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 much does it rain in December?
How many days 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 in Silverton?
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
Silverton, NJ
- Average high temperature in December: 44.4°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 36.1°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in December
Silverton, 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
Silverton, NJ
- Average wind speed in December: 11.5mph
The windiest month (with the highest average wind speed) is January (12.2mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in December
Silverton, NJ
- Average humidity in December: 76%
The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January, March and November (74%).
Average rainfall in December
Silverton, NJ
- Average rainfall in December: 1.69"
The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in December
Silverton, NJ
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is January (7 days).
Average snowfall in December
Silverton, NJ
- Average snowfall in December: 0.79"
The month with the highest snowfall is January (0.91").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Silverton, NJ
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Silverton, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Silverton, NJ
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in December
Silverton, 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, November and December (UV index 2).
Average cloud cover in December
Silverton, NJ
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in December
Silverton, NJ
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Silverton, New Jersey, USA
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