December weather forecast
McCaskill, SC

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Weather in December

The first month of the winter, December, is still a mild month in McCaskill, South Carolina, with an average temperature varying between 55.6°F (13.1°C) and 41.5°F (5.3°C).

Temperature

McCaskill's progression into December involves a gentle drop in the average high-temperature, from an enjoyable 61.7°F (16.5°C) in November to a mild 55.6°F (13.1°C). An average low-temperature of 41.5°F (5.3°C) is observed in McCaskill during the December nights.

Humidity

In McCaskill, the average relative humidity in December is 74%.

Rainfall

In December, in McCaskill, the rain falls for 10.5 days. Throughout December, 3.27" (83mm) of precipitation is accumulated. Throughout the year, in McCaskill, there are 157 rainfall days, and 31.54" (801mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In McCaskill, in December, snow falls for 0.1 days, with typically accumulated 0.16" (4mm) of snow. In McCaskill, during the entire year, snow falls for 1.4 days and aggregates up to 0.75" (19mm) of snow.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year in McCaskill, South Carolina.
On the first day of December in McCaskill, sunrise is at 7:10 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:23 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 5.5h of sunshine.

UV index

In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 3 in December translates into these instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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Frequently asked questions

What are December temperatures in McCaskill?

In December, the average high-temperature and low-temperature in McCaskill, South Carolina, are 55.6°F (13.1°C) and 41.5°F (5.3°C) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 91.4°F (33°C).

What is the average humidity in December in McCaskill?

The average relative humidity in December is 74%.

How many days does it rain in December in McCaskill?

In December, in McCaskill, the rain falls for 10.5 days. Throughout December, 3.27" (83mm) of precipitation is accumulated.

How much does it snow in McCaskill in December?

In McCaskill, South Carolina, during December, snow falls for 0.1 days and regularly aggregates up to 0.16" (4mm) of snow.

What is the month with the shortest days in McCaskill?

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

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

In McCaskill, the average day length in December is 9h and 55min.

What time are sunrise and sunset in December in McCaskill?

In December, on the first day of the month, sunrise is at 7:10 am and sunset at 5:13 pm. On the last day of the month, in McCaskill, sunrise is at 7:28 am and sunset at 5:23 pm EST.

What is the month with the least sunshine in McCaskill?

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

How many hours of sunshine does McCaskill have in December?

The average sunshine duration in December in McCaskill is 5.5h.

What is the UV index reading in December in McCaskill?

The average daily maximum UV index in December in McCaskill, South Carolina, is 3. A UV Index value of 3 to 5 symbolizes a medium health risk 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
McCaskill, SC

Average temperature in December - McCaskill, SC
  • Average high temperature in December: 55.6°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (52.2°F).

  • Average low temperature in December: 41.5°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (37.6°F).

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Average pressure in December
McCaskill, SC

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

The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in December
McCaskill, SC

Average wind speed in December - McCaskill, SC
  • Average wind speed in December: 7.1mph

The windiest months (with the highest average wind speed) are February and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in December
McCaskill, SC

Average humidity in December - McCaskill, SC
  • Average humidity in December: 74%

The month with the highest relative humidity is May (75%).
The months with the lowest relative humidity are January and November (70%).

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Average rainfall in December
McCaskill, SC

Average rainfall in December - McCaskill, SC
  • Average rainfall in December: 3.27"

The wettest month (with the highest rainfall) is August (3.66").
The driest months (with the least rainfall) are January and November (1.97").

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Average rainfall days in December
McCaskill, SC

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

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is October (8.2 days).

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Average snowfall in December
McCaskill, SC

Average snowfall in December - McCaskill, SC
  • Average snowfall in December: 0.16"

The month with the highest snowfall is February (0.31").
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
McCaskill, SC

Average snowfall days in December - McCaskill, SC
  • Average snowfall days in December: 0.1 days

The months with the highest number of snowfall days are January and February (0.5 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
McCaskill, SC

Average daylight in December / Average sunshine in December - McCaskill, 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 3min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in December
McCaskill, SC

Average sunshine days in December - McCaskill, SC
  • Average sunshine days in December: 19.3 days

The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is July (8.9 days).

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Average UV index in December
McCaskill, SC

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

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

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Average cloud cover in December
McCaskill, SC

Average cloud cover in December - McCaskill, SC
  • Average cloud cover in December: 40

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 27).

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Average visibility in December
McCaskill, SC

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

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