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 brings a slight decrease in the average high-temperature, transitioning from a refreshing 59.7°F (15.4°C) in November to a fresh 52.5°F (11.4°C). In December, the temperature drops to an average of 38.1°F (3.4°C) at night.Humidity
With an average relative humidity of 76%, December is the most humid month in Sans Souci, South Carolina.Rainfall
December is the month with the most rainfall. Rain falls for 10.5 days and accumulates 3.39" (86mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. The month with the most snowfall is December, when snow falls for 0.5 days and typically aggregates up to 1.81" (46mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.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, in Sans Souci, sunrise is at 7:37 am and sunset at 5:28 pm EST.
Sunshine
With an average of 5.5h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index in Sans Souci are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. To cut down UV radiation exposure by about half, sport a wide-brim hat. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Frequently asked questions
What are the temperatures in Sans Souci in December?
What is the most humid month in Sans Souci?
What is the average humidity in December in Sans Souci?
What is the wettest month in Sans Souci?
How many days does it rain in December in Sans Souci?
When does it snow the most in Sans Souci?
How much does it snow in Sans Souci in December?
What is the month with the shortest days in Sans Souci?
What is the average length of the day in December in Sans Souci?
What time are sunrise and sunset in December in Sans Souci?
What is the month with the least sunshine in Sans Souci?
How long on average sun shines in December in Sans Souci?
What are the months with the lowest UV index in Sans Souci?
How high is the UV index in December in Sans Souci?
Average temperature in December
Sans Souci, SC
- Average high temperature in December: 52.5°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (49.3°F).
- Average low temperature in December: 38.1°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
Sans Souci, SC
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Sans Souci, SC
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Sans Souci, SC
- Average humidity in December: 76%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall in December
Sans Souci, SC
- Average rainfall in December: 3.39"
The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in December
Sans Souci, SC
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in December
Sans Souci, SC
- Average snowfall in December: 1.81"
The month with the highest snowfall is December (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Sans Souci, SC
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.3 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
Sans Souci, SC
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
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 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Sans Souci, SC
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is August (13.2 days).
Average UV index in December
Sans Souci, 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
Sans Souci, SC
- Average cloud cover in December: 40
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are June and July (Cloud cover 27).
Average visibility in December
Sans Souci, 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).
Sans Souci, South Carolina, USA
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