December weather forecast
Anderson, SC

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Weather in December

With the arrival of December, winter emerges in full force in Anderson, South Carolina. Throughout the month, residents experience cool temperatures, second lowest after the plummet in January. Traces of snowfall are recorded at 0.2" (5mm), once again bringing the essence of winter to Anderson after a long hiatus since February. The city sees the shortest daylight duration, signifying the end of the year with shorter, cold days and longer, freezing nights. Lastly, December witnesses an increase in relative humidity up to 77%, the highest for the year, adding to the city's chilly ambiance, perfect for the holiday season.

Temperature

December's onset in Anderson corresponds with a subtle shift in the average high-temperature, slightly moving from a mild 60.6°F (15.9°C) in November to a cool 53.8°F (12.1°C). Throughout December, Anderson encounters an average temperature drop to an icy 38.5°F (3.6°C).

Humidity

With an average relative humidity of 77%, December is the most humid month.

Rainfall

In December, in Anderson, South Carolina, the rain falls for 10.5 days. Throughout December, 1.69" (43mm) of precipitation is accumulated. In Anderson, during the entire year, the rain falls for 136.3 days and collects up to 19.02" (483mm) of precipitation.

Snowfall

January through March and December are months with snowfall. December is the first month it typically snows in Anderson. Throughout December, in the average 0.4 snowfall days, it receives 0.2" (5mm) of snow. Throughout the year, there are 2.3 snowfall days, and 0.79" (20mm) of snow is accumulated.

Daylight

The month with the shortest days in Anderson is December, with an average of 9h and 54min of daylight.
On the first day of December, sunrise is at 7:19 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 5.1h 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 of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

What are December temperatures in Anderson?

The high-temperature, in December, in Anderson, records 53.8°F (12.1°C), while the low-temperature is 38.5°F (3.6°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 89.6°F (32°C).

What is the most humid month in Anderson?

December is the most humid month in Anderson, with an average relative humidity of 77%.

What is the average humidity in December in Anderson?

In Anderson, South Carolina, the average relative humidity in December is 77%.

How much does it rain in Anderson in December?

In Anderson, in December, during 10.5 rainfall days, 1.69" (43mm) of precipitation is typically accumulated.

When does it start to snow in Anderson?

December is the first month it typically snows in Anderson. Throughout December, in the average 0.4 snowfall days, it receives 0.2" (5mm) of snow.

What is the month with the shortest days in Anderson?

December has the shortest days of the year in Anderson, with an average of 9h and 54min of daylight.

How many hours of daylight does Anderson have in December?

The average day length in December in Anderson, South Carolina, is 9h and 53min.

What time are sunrise and sunset in December in Anderson?

On the first day of December, sunrise is at 7:19 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.

What is the month with the least sunshine in Anderson?

December has the least sunshine of the year in Anderson, with an average of 5.1h of sunshine.

How many hours of sunshine does Anderson have in December?

In Anderson, South Carolina, the average sunshine duration in December is 5.1h.

When is the lowest UV index in Anderson?

The months with the lowest UV index in Anderson, South Carolina, are January and December, with an average maximum UV index of 2.

How high is the UV index in December in Anderson?

The average daily maximum UV index in December in Anderson, South Carolina, is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Anderson, SC

Average temperature in December - Anderson, SC
  • Average high temperature in December: 53.8°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (50.2°F).

  • Average low temperature in December: 38.5°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).

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Average pressure in December
Anderson, SC

Average pressure in December - Anderson, 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).

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Average wind speed in December
Anderson, SC

Average wind speed in December - Anderson, SC
  • Average wind speed in December: 6.4mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in December
Anderson, SC

Average humidity in December - Anderson, 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%).

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Average rainfall in December
Anderson, SC

Average rainfall in December - Anderson, SC
  • Average rainfall in December: 1.69"

The wettest month (with the highest rainfall) is August (2.28").
The driest month (with the least rainfall) is September (0.79").

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Average rainfall days in December
Anderson, SC

Average rainfall days in December - Anderson, SC
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is October (7.2 days).

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Average snowfall in December
Anderson, SC

Average snowfall in December - Anderson, SC
  • Average snowfall in December: 0.2"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Anderson, SC

Average snowfall days in December - Anderson, SC
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Anderson, SC

Average daylight in December / Average sunshine in December - Anderson, 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 1min

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 6min).

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Average sunshine days in December
Anderson, SC

Average sunshine days in December - Anderson, SC
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (14.3 days).

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Average UV index in December
Anderson, SC

Average UV index in December - Anderson, SC
  • Average UV index in December: 2

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in December
Anderson, SC

Average cloud cover in December - Anderson, SC
  • Average cloud cover in December: 44

The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 29).

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Average visibility in December
Anderson, SC

Average visibility in December - Anderson, SC
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

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Anderson, South Carolina, USA

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