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 advent of December brings a slight shift in average high-temperature, moving from a comfortable 63°F (17.2°C) in November to a moderate 57.4°F (14.1°C). Summerton records a mean low-temperature of 42.3°F (5.7°C) in December.Humidity
The average relative humidity in December in Summerton, South Carolina, is 76%.Rainfall
The wettest months are August and December, with an average 3.23" (82mm) of rainfall.Snowfall
January, February and December are months with snowfall in Summerton. December is the first month it typically snows in Summerton. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, in Summerton, there are 1.2 snowfall days, and 0.47" (12mm) of snow is accumulated.Daylight
The month with the shortest days in Summerton, South Carolina, is December, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 7:08 am and sunset at 5:13 pm. On the last day of December, in Summerton, sunrise is at 7:25 am and sunset at 5:23 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.6h of sunshine.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 3 in December converts into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Summerton?
What is the average humidity in December in Summerton?
What is the rainiest month in Summerton?
How many days does it rain in December in Summerton?
When does it start to snow in Summerton?
What is the month with the shortest days in Summerton?
How many hours of daylight does Summerton have in December?
What time are sunrise and sunset in December in Summerton?
What is the month with the least sunshine in Summerton?
How long on average sun shines in December in Summerton?
What is the month with the lowest UV index in Summerton?
How high is the UV index in December in Summerton?
Average temperature in December
Summerton, SC
- Average high temperature in December: 57.4°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (53.6°F).
- Average low temperature in December: 42.3°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).
Average pressure in December
Summerton, SC
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Summerton, SC
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Summerton, SC
- Average humidity in December: 76%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January and November (72%).
Average rainfall in December
Summerton, SC
- Average rainfall in December: 3.23"
The wettest months (with the highest rainfall) are August and December (3.23").
The driest month (with the least rainfall) is January (1.65").
Average rainfall days in December
Summerton, SC
- Average rainfall days in December: 10.7 days
The months with the highest number of rainy days are July and August (18.8 days).
The month with the least rainy days is November (8 days).
Average snowfall in December
Summerton, SC
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Summerton, SC
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Summerton, SC
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
Summerton, SC
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in December
Summerton, SC
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Summerton, SC
- Average cloud cover in December: 40
The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in December
Summerton, 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).
Summerton, South Carolina, USA
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