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 commencement of December indicates a shift in the average high-temperature, receding from November's cool 52°F (11.1°C) to a frosty 42.8°F (6°C). Siler records an average temperature drop to a subzero cold 29.8°F (-1.2°C) in December.Humidity
The months with the highest humidity are May, October and December, with an average relative humidity of 78%.Rainfall
In December, the rain falls for 6.9 days. Throughout December, 0.87" (22mm) of precipitation is accumulated. In Siler, during the entire year, the rain falls for 117.3 days and collects up to 12.24" (311mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Siler, in December, during 3.3 snowfall days, 0.83" (21mm) of snow is typically accumulated. Throughout the year, there are 17.1 snowfall days, and 4.69" (119mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:14 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:59 pm EST.
Sunshine
The average sunshine in December is 5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during December translates into these guidelines:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
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?
What time are sunrise and sunset in December?
How many hours of sunshine does Siler have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Siler, VA
- Average high temperature in December: 42.8°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in December: 29.8°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in December
Siler, VA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Siler, VA
- Average wind speed in December: 6.4mph
The windiest month (with the highest average wind speed) is March (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Siler, VA
- Average humidity in December: 78%
The months with the highest relative humidity are May, October and December (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Siler, VA
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in December
Siler, VA
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in December
Siler, VA
- Average snowfall in December: 0.83"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Siler, VA
- Average snowfall days in December: 3.3 days
The month with the highest number of snowfall days is January (5.3 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
Siler, VA
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in December
Siler, VA
- Average sunshine days in December: 21.1 days
The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is May (14.6 days).
Average UV index in December
Siler, VA
- 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, November and December (UV index 2).
Average cloud cover in December
Siler, VA
- Average cloud cover in December: 48
The months with the most cloud cover are January, March and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Siler, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are May, September and October (5mi).
Siler, Virginia, USA
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