December weather forecast
Deweys Hill, SC

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Weather in December

The first month of the winter, December, is still a mild month in Deweys Hill, South Carolina, with an average temperature fluctuating between 47.3°F (8.5°C) and 60.4°F (15.8°C).

Temperature

December's arrival subtly correlates with a reduction in the average high-temperature, down from 65.8°F (18.8°C) in November to a still refreshing 60.4°F (15.8°C). In Deweys Hill, an average nighttime temperature of 47.3°F (8.5°C) is expected during December.

Humidity

The most humid month in Deweys Hill is December, with an average relative humidity of 77%.

Rainfall

In Deweys Hill, during December, the rain falls for 9.5 days and regularly aggregates up to 2.4" (61mm) of precipitation. In Deweys Hill, during the entire year, the rain falls for 154.4 days and collects up to 23.43" (595mm) of precipitation.

Snowfall

January, February and December are months with snowfall. December has the most snowfall days of the year. Snow falls for 0.3 days.

Daylight

The month with the shortest days in Deweys Hill is December, with an average of 10h and 0min of daylight.
On the first day of the month, sunrise is at 7:05 am and sunset at 5:13 pm. On the last day of December, sunrise is at 7:22 am and sunset at 5:24 pm EST.

Sunshine

With an average of 5.6h of sunshine, December has the least sunshine of the year.

UV index

In Deweys Hill, the average daily maximum UV index in December is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 4 in December translates into these instructions:
Exercise prevention - Precautions against solar damage are endorsed. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Enhance your sun protection with tightly woven, yet airy clothing. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
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Frequently asked questions

What is the temperature in December in Deweys Hill?

The high-temperature, in December, in Deweys Hill, records 60.4°F (15.8°C), while the low-temperature is 47.3°F (8.5°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in September is calculated to be 93.2°F (34°C).

What is the most humid month in Deweys Hill?

The most humid month in Deweys Hill, South Carolina, is December, with an average relative humidity of 77%.

What is the average humidity in December in Deweys Hill?

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

How much does it rain in Deweys Hill in December?

In Deweys Hill, South Carolina, in December, during 9.5 rainfall days, 2.4" (61mm) of precipitation is typically accumulated.

When does it snow the most in Deweys Hill?

The month with the most snowfall days in Deweys Hill is December, when snow falls for 0.3 days.

When does it start snowing in Deweys Hill?

December is the first month it typically snows in Deweys Hill, South Carolina. Throughout December, there are 0.3 snowfall days.

What is the month with the shortest days in Deweys Hill?

December has the shortest days of the year in Deweys Hill, South Carolina, with an average of 10h and 0min of daylight.

What is the average length of the day in December in Deweys Hill?

The average day length in December in Deweys Hill, South Carolina, is 10h and 2min.

When are sunrise and sunset in December in Deweys Hill?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 5:13 pm. On the last day of the month, in Deweys Hill, South Carolina, sunrise is at 7:22 am and sunset at 5:24 pm EST.

What is the month with the least sunshine in Deweys Hill?

The month with the least sunshine is December, with an average of 5.6h of sunshine.

How many hours of sunshine does Deweys Hill have in December?

In Deweys Hill, South Carolina, the average sunshine duration in December is 5.6h.

What is the UV index reading in December in Deweys Hill?

The average daily maximum UV index in December in Deweys Hill is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
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
Deweys Hill, SC

Average temperature in December - Deweys Hill, SC
  • Average high temperature in December: 60.4°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in December: 47.3°F

The month with the highest average low temperature is July (76.5°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).

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Average pressure in December
Deweys Hill, SC

Average pressure in December - Deweys Hill, SC
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in December
Deweys Hill, SC

Average wind speed in December - Deweys Hill, SC
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in December
Deweys Hill, SC

Average humidity in December - Deweys Hill, SC
  • Average humidity in December: 77%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (72%).

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Average rainfall in December
Deweys Hill, SC

Average rainfall in December - Deweys Hill, SC
  • Average rainfall in December: 2.4"

The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in December
Deweys Hill, SC

Average rainfall days in December - Deweys Hill, SC
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is November (6.9 days).

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Average snowfall days in December
Deweys Hill, SC

Average snowfall days in December - Deweys Hill, SC
  • Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is December (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Deweys Hill, SC

Average daylight in December / Average sunshine in December - Deweys Hill, 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).

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Average sunshine days in December
Deweys Hill, SC

Average sunshine days in December - Deweys Hill, SC
  • Average sunshine days in December: 19 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (6.1 days).

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Average UV index in December
Deweys Hill, SC

Average UV index in December - Deweys Hill, SC
  • Average UV index in December: 4

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

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Average cloud cover in December
Deweys Hill, SC

Average cloud cover in December - Deweys Hill, SC
  • Average cloud cover in December: 40

The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 26).

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Average visibility in December
Deweys Hill, SC

Average visibility in December - Deweys Hill, 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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Deweys Hill, South Carolina, USA

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