December weather forecast
Glymphville, SC

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Weather in December

The first month of the winter, December, is also a fresh month in Glymphville, South Carolina, with an average temperature ranging between min 39.7°F (4.3°C) and max 54.9°F (12.7°C).

Temperature

The arrival of December correlates with a minor temperature reduction, down from November's comfortable 61.7°F (16.5°C) to a fresh 54.9°F (12.7°C). Glymphville records a steady low-temperature average of 39.7°F (4.3°C) during December.

Humidity

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

Rainfall

The month with the most rainfall is December, when the rain falls for 11.2 days and typically aggregates up to 3.23" (82mm) of precipitation.

Snowfall

Months with snowfall in Glymphville are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. In Glymphville, during the entire year, snow falls for 2.3 days and aggregates up to 1.69" (43mm) 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 the month, sunrise is at 7:14 am and sunset at 5:15 pm. On the last day of December, sunrise is at 7:31 am and sunset at 5:26 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 5.3h of sunshine.

UV index

In Glymphville, South Carolina, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 3 in December leads to these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

What is the temperature in December in Glymphville?

In December, in Glymphville, the average high-temperature is 54.9°F (12.7°C), and the average low-temperature is 39.7°F (4.3°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 93.2°F (34°C).

What is the most humid month in Glymphville?

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

What is the average humidity in December in Glymphville?

The average relative humidity in December is 77%.

What is the rainiest month in Glymphville?

The month with the most rainfall in Glymphville is December, when the rain falls for 11.2 days and typically aggregates up to 3.23" (82mm) of precipitation.

How much does it rain in Glymphville in December?

In Glymphville, in December, during 11.2 rainfall days, 3.23" (82mm) of precipitation is typically accumulated.

When does it start to snow in Glymphville?

December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days in Glymphville?

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

How many hours of daylight does Glymphville have in December?

The average day length in December in Glymphville, South Carolina, is 9h and 54min.

What time are sunrise and sunset in December in Glymphville?

In December, on the first day of the month, sunrise is at 7:14 am and sunset at 5:15 pm. On the last day of the month, in Glymphville, South Carolina, sunrise is at 7:31 am and sunset at 5:26 pm EST.

What is the month with the least sunshine in Glymphville?

The month with the least sunshine in Glymphville is December, with an average of 5.3h of sunshine.

How many hours of sunshine does Glymphville have in December?

In December, the average sunshine duration is 5.3h.

What is the UV index reading in December in Glymphville?

In December, the average daily maximum UV index in Glymphville, South Carolina, is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Glymphville, SC

Average temperature in December - Glymphville, SC
  • Average high temperature in December: 54.9°F

The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in December: 39.7°F

The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).

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Average pressure in December
Glymphville, SC

Average pressure in December - Glymphville, 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
Glymphville, SC

Average wind speed in December - Glymphville, SC
  • Average wind speed in December: 6.6mph

The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

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Average humidity in December
Glymphville, SC

Average humidity in December - Glymphville, 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%).

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Average rainfall in December
Glymphville, SC

Average rainfall in December - Glymphville, SC
  • Average rainfall in December: 3.23"

The wettest month (with the highest rainfall) is December (3.23").
The driest month (with the least rainfall) is September (1.42").

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Average rainfall days in December
Glymphville, SC

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

The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is October (8.8 days).

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Average snowfall in December
Glymphville, SC

Average snowfall in December - Glymphville, SC
  • Average snowfall in December: 0.04"

The month with the highest snowfall is January (0.79").
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
Glymphville, SC

Average snowfall days in December - Glymphville, SC
  • Average snowfall days in December: 0.3 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 and October (0 days).

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

Average daylight in December / Average sunshine in December - Glymphville, 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: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in December
Glymphville, SC

Average sunshine days in December - Glymphville, SC
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is July (12.6 days).

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Average UV index in December
Glymphville, SC

Average UV index in December - Glymphville, SC
  • Average UV index in December: 3

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

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Average cloud cover in December
Glymphville, SC

Average cloud cover in December - Glymphville, SC
  • Average cloud cover in December: 43

The months with the most cloud cover are February and December (Cloud cover 43).
The months with the least cloud cover are June, July and October (Cloud cover 30).

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Average visibility in December
Glymphville, SC

Average visibility in December - Glymphville, 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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Glymphville, South Carolina, USA

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