December weather forecast
Olar, SC

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Weather in December

December, the first month of the winter in Olar, is also a moderate month, with an average temperature ranging between max 57.4°F (14.1°C) and min 43.5°F (6.4°C).

Temperature

The transition to December results in a modest reduction in average high-temperature, moving from an enjoyable 63.5°F (17.5°C) in November to a still refreshing 57.4°F (14.1°C). During December, Olar's temperature falls to a steady low-temperature average of 43.5°F (6.4°C).

Humidity

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

Rainfall

In Olar, during December, the rain falls for 9.1 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, there are 135.5 rainfall days, and 15.67" (398mm) of precipitation is accumulated.

Snowfall

In Olar, South Carolina, snow does not fall in January, March through December.

Daylight

December has the shortest days of the year, with an average of 10h and 0min of daylight.
On the first day of the month, sunrise is at 7:10 am and sunset at 5:17 pm. On the last day of December, sunrise is at 7:27 am and sunset at 5:28 pm EST.

Sunshine

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

UV index

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 3 during December translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Olar in December?

The high-temperature, in December, in Olar, is 57.4°F (14.1°C), while the low-temperature averages to 43.5°F (6.4°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in September is appraised at 93.2°F (34°C).

What is the most humid month?

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

What is the average humidity in December?

In December, the average relative humidity is 76%.

How much does it rain in December?

In December, the rain falls for 9.1 days. Throughout December, 1.54" (39mm) of precipitation is accumulated.

When it does not snow in Olar?

In Olar, snow does not fall in January, March through December.

What is the month with the shortest days in Olar?

With an average of 10h and 0min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In Olar, the average day length in December is 10h and 0min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:10 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:28 pm EST.

What is the month with the least sunshine?

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

How long on average sun shines in December?

The average sunshine duration in December is 5.5h.

When is the lowest UV index?

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

What is the UV index intensity in December?

In Olar, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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
Olar, SC

Average temperature in December - Olar, SC
  • Average high temperature in December: 57.4°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (54.1°F).

  • Average low temperature in December: 43.5°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).

Average pressure in December
Olar, SC

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

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

Average wind speed in December
Olar, SC

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

The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in December
Olar, SC

Average humidity in December - Olar, SC
  • Average humidity in December: 76%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is January (70%).

Average rainfall in December
Olar, SC

Average rainfall in December - Olar, SC
  • Average rainfall in December: 1.54"

The wettest month (with the highest rainfall) is August (2.17").
The driest month (with the least rainfall) is November (0.63").

Average rainfall days in December
Olar, SC

Average rainfall days in December - Olar, SC
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is November (6.3 days).

Average snowfall in December
Olar, SC

Average snowfall in December - Olar, 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
Olar, SC

Average snowfall days in December - Olar, SC
  • Average snowfall days in December: 0.2 days

The months with the highest number of snowfall days are January, February and December (0.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in December / Average sunshine in December - Olar, 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 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).

Average sunshine days in December
Olar, SC

Average sunshine days in December - Olar, SC
  • Average sunshine days in December: 20.2 days

The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is August (9.7 days).

Average UV index in December
Olar, SC

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

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

Average cloud cover in December
Olar, SC

Average cloud cover in December - Olar, SC
  • Average cloud cover in December: 41

The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 27).

Average visibility in December
Olar, SC

Average visibility in December - Olar, 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).

Olar, South Carolina, USA

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