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 beginning of December subtly marks a decrease in the average high-temperature, transitioning from a moderate 59.9°F (15.5°C) in November to a fresh 52.7°F (11.5°C). Throughout the month of December, the nighttime temperature dips to an average of 37.8°F (3.2°C).Humidity
The most humid month is December, with an average relative humidity of 77%.Rainfall
December is the month with the most rainfall. Rain falls for 11.5 days and accumulates 3.66" (93mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Piedmont, South Carolina. December is the month with the most snowfall. Snow falls for 0.5 days and accumulates 2.01" (51mm) of snow.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:19 am and sunset at 5:18 pm. On the last day of December, sunrise is at 7:36 am and sunset at 5:29 pm EST.
Sunshine
December has the least sunshine of the year in Piedmont, with an average of 5.5h of sunshine.UV index
January 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 low threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Frequently asked questions
What is the average December temperature in Piedmont?
What is the most humid month in Piedmont?
What is the average humidity in December in Piedmont?
What is the rainiest month in Piedmont?
How many days does it rain in December in Piedmont?
What is the snowiest month in Piedmont?
How much does it snow in Piedmont in December?
What is the month with the shortest days in Piedmont?
What is the average length of the day in December in Piedmont?
When is the sunrise / sunset in December in Piedmont?
What is the month with the least sunshine in Piedmont?
How many hours of sunshine does Piedmont have in December?
What are the months with the lowest UV index in Piedmont?
What is the UV index intensity in December in Piedmont?
Average temperature in December
Piedmont, SC
- Average high temperature in December: 52.7°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (49.3°F).
- Average low temperature in December: 37.8°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).
Average pressure in December
Piedmont, SC
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Piedmont, SC
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Piedmont, SC
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).
Average rainfall in December
Piedmont, SC
- Average rainfall in December: 3.66"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in December
Piedmont, SC
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in December
Piedmont, SC
- Average snowfall in December: 2.01"
The month with the highest snowfall is December (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Piedmont, SC
- Average snowfall days in December: 0.5 days
The months with the highest number of snowfall days are January and February (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Piedmont, SC
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Piedmont, SC
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is October (21.9 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in December
Piedmont, SC
- 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 and December (UV index 2).
Average cloud cover in December
Piedmont, SC
- Average cloud cover in December: 40
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Piedmont, SC
- 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).
Piedmont, South Carolina, USA
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