December weather forecast
Clarkston, GA

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Weather in December

December, the first month of the winter in Clarkston, is still a cool month, with an average temperature fluctuating between 39.7°F (4.3°C) and 53.8°F (12.1°C).

Temperature

A minor decrease in the average high-temperature is observed during December, shifting from a refreshing 61.3°F (16.3°C) in November to a fresh 53.8°F (12.1°C). Throughout December, Clarkston encounters an average temperature drop to an icy 39.7°F (4.3°C).

Humidity

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

Rainfall

In Clarkston, in December, it is raining for 9.5 days, with typically 1.3" (33mm) of accumulated precipitation. In Clarkston, Georgia, during the entire year, the rain falls for 134.6 days and collects up to 14.72" (374mm) of precipitation.

Snowfall

January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.12" (3mm) of snow. In Clarkston, Georgia, during the entire year, snow falls for 2.3 days and aggregates up to 0.59" (15mm) of snow.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:24 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:38 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 5.1h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: An average UV index of 2 in December transforms into this advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

Frequently asked questions

What are December temperatures?

In Clarkston, 53.8°F (12.1°C) is the average high-temperature and 39.7°F (4.3°C) is the average low-temperature during December. In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is calculated to be 91.4°F (33°C).

What is the most humid month?

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

What is the average humidity in December?

The average relative humidity in December is 77%.

How many days does it rain in December?

In Clarkston, during December, the rain falls for 9.5 days and regularly aggregates up to 1.3" (33mm) of precipitation.

When does it start snowing?

December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.12" (3mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 0min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 57min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:24 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:38 pm EST.

What is the month with the least sunshine?

With an average of 5.1h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Clarkston have in December?

The average sunshine duration in December is 5.1h.

What is the month with the lowest UV index?

The months with the lowest UV index are January and December, with an average maximum UV index of 2.

What is the UV index reading in December in Clarkston?

In Clarkston, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Clarkston, GA

Average temperature in December - Clarkston, GA
  • Average high temperature in December: 53.8°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (50.5°F).

  • Average low temperature in December: 39.7°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).

Average pressure in December
Clarkston, GA

Average pressure in December - Clarkston, GA
  • Average pressure in December: 30.15"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in December
Clarkston, GA

Average wind speed in December - Clarkston, GA
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in December
Clarkston, GA

Average humidity in December - Clarkston, GA
  • Average humidity in December: 77%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July and August (69%).

Average rainfall in December
Clarkston, GA

Average rainfall in December - Clarkston, GA
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is August (2.32").
The driest month (with the least rainfall) is September (0.55").

Average rainfall days in December
Clarkston, GA

Average rainfall days in December - Clarkston, GA
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is August (17.1 days).
The month with the least rainy days is November (6.9 days).

Average snowfall in December
Clarkston, GA

Average snowfall in December - Clarkston, GA
  • Average snowfall in December: 0.12"

The month with the highest snowfall is February (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Clarkston, GA

Average snowfall days in December - Clarkston, GA
  • Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Clarkston, GA

Average daylight in December / Average sunshine in December - Clarkston, GA
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 5h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in December
Clarkston, GA

Average sunshine days in December - Clarkston, GA
  • Average sunshine days in December: 19.2 days

The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (10.9 days).

Average UV index in December
Clarkston, GA

Average UV index in December - Clarkston, GA
  • Average UV index in December: 2

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

Average cloud cover in December
Clarkston, GA

Average cloud cover in December - Clarkston, GA
  • Average cloud cover in December: 46

The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in December
Clarkston, GA

Average visibility in December - Clarkston, GA
  • 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).

Clarkston, Georgia, USA

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