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
With the onset of December, the average high-temperature subtly recedes from November's moderate 56.3°F (13.5°C) to a frosty 49.5°F (9.7°C). Sunset in December experiences a low-temperature average of 34.7°F (1.5°C).Humidity
The months with the highest humidity are May and December, with an average relative humidity of 77%.Rainfall
December is the month with the most rainfall. Rain falls for 12.1 days and accumulates 4.53" (115mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. December is the month with the most snowfall. Snow falls for 1.8 days and accumulates 4.57" (116mm) 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 7:21 am and sunset at 5:19 pm. On the last day of December, sunrise is at 7:38 am and sunset at 5:30 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5.7h of sunshine.UV index
January, February 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 health risk from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Sunset in December?
What are the most humid months?
What is the average humidity in December?
What is the rainiest month?
How much does it rain in December?
What is the snowiest month?
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?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Sunset have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Sunset, SC
- Average high temperature in December: 49.5°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (45.3°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in December
Sunset, 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
Sunset, SC
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in December
Sunset, SC
- Average humidity in December: 77%
The months with the highest relative humidity are May and December (77%).
The month with the lowest relative humidity is November (73%).
Average rainfall in December
Sunset, SC
- Average rainfall in December: 4.53"
The wettest month (with the highest rainfall) is December (4.53").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in December
Sunset, SC
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in December
Sunset, SC
- Average snowfall in December: 4.57"
The month with the highest snowfall is December (4.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Sunset, SC
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sunset, 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
Sunset, SC
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in December
Sunset, SC
- 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 and December (UV index 2).
Average cloud cover in December
Sunset, SC
- Average cloud cover in December: 41
The months with the most cloud cover are February, March and December (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
Sunset, SC
- Average visibility in December: 5mi
The months with the highest visibility are February, June, July, August, October and November (6mi).
The months with the lowest visibility are January, March, April, May, September and December (5mi).
Sunset, South Carolina, USA
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