December weather forecast
Greer, SC

Weather in December

The first month of the winter, December, is still a cool month in Greer, South Carolina, with an average temperature ranging between max 52.5°F (11.4°C) and min 38.3°F (3.5°C).

Temperature

In December, the average high-temperature marginally drops from a moderate 59.9°F (15.5°C) in November to a fresh 52.5°F (11.4°C). The average low-temperature, in Greer, is 38.3°F (3.5°C).

Humidity

With an average relative humidity of 76%, December is the most humid month.

Rainfall

December is the month with the most rainfall in Greer. Rain falls for 11.2 days and accumulates 3.54" (90mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. The month with the most snowfall in Greer, South Carolina, is December, when snow falls for 0.5 days and typically aggregates up to 2.8" (71mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 51min of daylight.
On the first day of December, sunrise is at 7:18 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:27 pm EST.

Sunshine

The month with the least sunshine in Greer is December, with an average of 5.5h of sunshine.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Greer. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Greer?

In December, in Greer, South Carolina, the average high-temperature is 52.5°F (11.4°C), and the average low-temperature is 38.3°F (3.5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is evaluated at 89.6°F (32°C).

What is the most humid month in Greer?

With an average relative humidity of 76%, December is the most humid month.

What is the average humidity in December in Greer?

In Greer, South Carolina, the average relative humidity in December is 76%.

What is the rainiest month in Greer?

December is the month with the most rainfall in Greer. Rain falls for 11.2 days and accumulates 3.54" (90mm) of precipitation.

How much does it rain in Greer in December?

In Greer, South Carolina, in December, it is raining for 11.2 days, with typically 3.54" (90mm) of accumulated precipitation.

What is the snowiest month in Greer?

December is the month with the most snowfall in Greer, South Carolina. Snow falls for 0.5 days and accumulates 2.8" (71mm) of snow.

How many days does it snow in December in Greer?

In December, in Greer, South Carolina, it is snowing for 0.5 days. Throughout December, 2.8" (71mm) of snow is accumulated.

What is the month with the shortest days in Greer?

The month with the shortest days in Greer is December, with an average of 9h and 51min of daylight.

What is the average length of the day in December in Greer?

The average day length in December in Greer, South Carolina, is 9h and 51min.

When are sunrise and sunset in December in Greer?

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 5:17 pm. On the last day of the month, in Greer, sunrise is at 7:36 am and sunset at 5:27 pm EST.

What is the month with the least sunshine in Greer?

December has the least sunshine of the year in Greer, South Carolina, with an average of 5.5h of sunshine.

How many hours of sunshine does Greer have in December?

In Greer, South Carolina, the average sunshine duration in December is 5.5h.

When is the lowest UV index in Greer?

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

How high is the UV index in December in Greer?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Greer, SC

Average temperature in December - Greer, SC
  • Average high temperature in December: 52.5°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (49.5°F).

  • Average low temperature in December: 38.3°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).

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Average pressure in December
Greer, SC

Average pressure in December - Greer, SC
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in December
Greer, SC

Average wind speed in December - Greer, SC
  • Average wind speed in December: 6mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity in December
Greer, SC

Average humidity in December - Greer, 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 (68%).

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Average rainfall in December
Greer, SC

Average rainfall in December - Greer, SC
  • Average rainfall in December: 3.54"

The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is September (1.38").

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Average rainfall days in December
Greer, SC

Average rainfall days in December - Greer, SC
  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is November (8.4 days).

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Average snowfall in December
Greer, SC

Average snowfall in December - Greer, SC
  • Average snowfall in December: 2.8"

The month with the highest snowfall is December (2.8").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Greer, SC

Average snowfall days in December - Greer, 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).

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

Average daylight in December / Average sunshine in December - Greer, SC
  • Average daylight in December: 9h and 51min

The month with the longest days is June (Average daylight: 14h and 28min).
The month with the shortest days is December (Average daylight: 9h and 51min).

  • Average sunshine in December: 5h and 30min

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 30min).

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Average sunshine days in December
Greer, SC

Average sunshine days in December - Greer, SC
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (11.6 days).

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Average UV index in December
Greer, SC

Average UV index in December - Greer, 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).

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Average cloud cover in December
Greer, SC

Average cloud cover in December - Greer, 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 27).

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Average visibility in December
Greer, SC

Average visibility in December - Greer, 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).

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