December weather forecast
Aynor, SC

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Weather in December

December, the first month of the winter in Aynor, is also a moderate month, with an average temperature fluctuating between 43.9°F (6.6°C) and 57.7°F (14.3°C).

Temperature

With the commencement of December, Aynor records a moderate temperature decline, with the average high easing from November's 63.3°F (17.4°C) to a still refreshing 57.7°F (14.3°C). Aynor experiences an average temperature drop to a chilly 43.9°F (6.6°C) during December nights.

Humidity

May, June, August, September and December, with an average relative humidity of 78%, are the most humid months.

Rainfall

In Aynor, in December, during 7.6 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. In Aynor, during the entire year, the rain falls for 127.8 days and collects up to 12.99" (330mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

The month with the shortest days is December, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 7:04 am and sunset at 5:07 pm. On the last day of December, sunrise is at 7:22 am and sunset at 5:18 pm EST.

Sunshine

In Aynor, the average sunshine in December is 5.7h.

UV index

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index in Aynor. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 3 during December leads to these instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Jun 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December?

The average high-temperature and low-temperature during December are 57.7°F (14.3°C) and 43.9°F (6.6°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is evaluated at 91.4°F (33°C).

What is the most humid month?

The months with the highest humidity are May, June, August, September and December, with an average relative humidity of 78%.

What is the average humidity in December?

The average relative humidity in December is 78%.

How much does it rain in December?

In December, the rain falls for 7.6 days. Throughout December, 1.38" (35mm) of precipitation is accumulated.

When it does not snow?

January, March through December are months without snowfall.

What is the month with the shortest days?

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

What is the average length of the day in December?

The average day length in December is 9h and 56min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:04 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:18 pm EST.

How many hours of sunshine does Aynor have in December?

In Aynor, the average sunshine duration in December is 5.7h.

What is the month with the lowest UV index?

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index.

How high is the UV index in December?

In Aynor, South Carolina, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
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
Aynor, SC

Average temperature in December - Aynor, SC
  • Average high temperature in December: 57.7°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (53.4°F).

  • Average low temperature in December: 43.9°F

The month with the highest average low temperature is July (74.5°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).

Average pressure in December
Aynor, SC

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

The months with the highest atmospheric pressure are January, November and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in December
Aynor, SC

Average wind speed in December - Aynor, SC
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in December
Aynor, SC

Average humidity in December - Aynor, SC
  • Average humidity in December: 78%

The months with the highest relative humidity are May, June, August, September and December (78%).
The month with the lowest relative humidity is January (74%).

Average rainfall in December
Aynor, SC

Average rainfall in December - Aynor, SC
  • Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is January (0.51").

Average rainfall days in December
Aynor, SC

Average rainfall days in December - Aynor, SC
  • Average rainfall days in December: 7.6 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in December
Aynor, SC

Average snowfall in December - Aynor, SC
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
Aynor, SC

Average snowfall days in December - Aynor, SC
  • Average snowfall days in December: 0 days

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

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

Average daylight in December / Average sunshine in December - Aynor, 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 4min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

Average sunshine days in December
Aynor, SC

Average sunshine days in December - Aynor, SC
  • Average sunshine days in December: 21.5 days

The month with the most sunshine days is January (23.1 days).
The month with the least sunshine days is July (9.2 days).

Average UV index in December
Aynor, SC

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

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

Average cloud cover in December
Aynor, SC

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

The months with the most cloud cover are February and December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 27).

Average visibility in December
Aynor, SC

Average visibility in December - Aynor, 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).

Aynor, South Carolina, USA

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