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
Start of December brings a slight shift in the average high-temperature, dipping a bit from November's mild 60.1°F (15.6°C) to a fresh 52.9°F (11.6°C). Sandy Springs observes an average nighttime low-temperature of 38.5°F (3.6°C) during the month of December.Humidity
The most humid month is December, with an average relative humidity of 77%.Rainfall
In Sandy Springs, in December, it is raining for 10.3 days, with typically 1.46" (37mm) of accumulated precipitation. In Sandy Springs, during the entire year, the rain falls for 140.2 days and collects up to 16.61" (422mm) of precipitation.Snowfall
January through March and December are months with snowfall. The month with the most snowfall is December, when snow falls for 0.6 days and typically aggregates up to 0.31" (8mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 7:20 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:30 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.4h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: During December, 2 as the daily maximum UV index converts into the following advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
What is the snowiest month?
When does it start snowing?
What is the month with the shortest days?
How many hours of daylight does Sandy Springs have in December?
When are sunrise and sunset in December in Sandy Springs?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Sandy Springs, SC
- Average high temperature in December: 52.9°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 (49.6°F).
- Average low temperature in December: 38.5°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (33.8°F).
Average pressure in December
Sandy Springs, 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
Sandy Springs, SC
- Average wind speed in December: 5.8mph
The windiest months (with the highest average wind speed) are February and April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Sandy Springs, 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 (70%).
Average rainfall in December
Sandy Springs, SC
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is August (2.01").
The driest month (with the least rainfall) is September (0.71").
Average rainfall days in December
Sandy Springs, SC
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is October (6.5 days).
Average snowfall in December
Sandy Springs, SC
- Average snowfall in December: 0.31"
The month with the highest snowfall is December (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Sandy Springs, SC
- Average snowfall days in December: 0.6 days
The months with the highest number of snowfall days are January and February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Sandy Springs, 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 2min
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 24min).
Average sunshine days in December
Sandy Springs, SC
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is October (22.3 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in December
Sandy Springs, 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
Sandy Springs, SC
- Average cloud cover in December: 41
The month with the most cloud cover is February (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 27).
Average visibility in December
Sandy Springs, 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).
Sandy Springs, South Carolina, USA
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