December weather forecast
Snellville, GA

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Weather in December

The first month of the winter, December, is still a cool month in Snellville, Georgia, with an average temperature varying between 53.8°F (12.1°C) and 39.6°F (4.2°C).

Temperature

The transition to December results in a modest reduction in average high-temperature, moving from a comfortable 61.3°F (16.3°C) in November to a cool 53.8°F (12.1°C). During December in Snellville, Georgia, the average low-temperature is recorded at a wintry 39.6°F (4.2°C).

Humidity

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

Rainfall

In December, in Snellville, the rain falls for 11.5 days. Throughout December, 2.36" (60mm) of precipitation is accumulated. Throughout the year, there are 158.9 rainfall days, and 27.32" (694mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In Snellville, during December, snow falls for 0.5 days and regularly aggregates up to 0.12" (3mm) of snow. In Snellville, during the entire year, snow falls for 2.6 days and aggregates up to 1.02" (26mm) of snow.

Daylight

December has the shortest days of the year in Snellville, with an average of 9h and 54min of daylight.
On the first day of December in Snellville, sunrise is at 7:23 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:37 pm EST.

Sunshine

With an average of 5h of sunshine, December has the least sunshine of the year in Snellville.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 2 during December translates into these guidelines:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

What is the temperature in December in Snellville?

The high-temperature, in December, in Snellville, is 53.8°F (12.1°C), while the low-temperature averages to 39.6°F (4.2°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is appraised at 91.4°F (33°C).

What is the most humid month in Snellville?

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

What is the average humidity in December in Snellville?

In December, the average relative humidity in Snellville, Georgia, is 77%.

How many days does it rain in December in Snellville?

In Snellville, Georgia, in December, it is raining for 11.5 days, with typically 2.36" (60mm) of accumulated precipitation.

How much does it snow in Snellville in December?

In Snellville, Georgia, during December, snow falls for 0.5 days and regularly aggregates up to 0.12" (3mm) of snow.

What is the month with the shortest days in Snellville?

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

How many hours of daylight does Snellville have in December?

The average day length in December in Snellville, Georgia, is 9h and 57min.

When are sunrise and sunset in December in Snellville?

On the first day of December in Snellville, Georgia, sunrise is at 7:23 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:37 pm EST.

What is the month with the least sunshine in Snellville?

December has the least sunshine of the year in Snellville, with an average of 5h of sunshine.

How many hours of sunshine does Snellville have in December?

In Snellville, the average sunshine duration in December is 5h.

What is the month with the lowest UV index in Snellville?

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

What is the UV index reading in December in Snellville?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Snellville, GA

Average temperature in December - Snellville, GA
  • Average high temperature in December: 53.8°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 (49.8°F).

  • Average low temperature in December: 39.6°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).

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Average pressure in December
Snellville, GA

Average pressure in December - Snellville, 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).

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Average wind speed in December
Snellville, GA

Average wind speed in December - Snellville, GA
  • Average wind speed in December: 7.3mph

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).

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Average humidity in December
Snellville, GA

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

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in December
Snellville, GA

Average rainfall in December - Snellville, GA
  • Average rainfall in December: 2.36"

The wettest month (with the highest rainfall) is August (3.78").
The driest month (with the least rainfall) is October (1.46").

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Average rainfall days in December
Snellville, GA

Average rainfall days in December - Snellville, GA
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is July (18.8 days).
The months with the least rainy days are October and November (9.4 days).

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Average snowfall in December
Snellville, GA

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

The month with the highest snowfall is February (0.43").
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
Snellville, GA

Average snowfall days in December - Snellville, GA
  • Average snowfall days in December: 0.5 days

The months with the highest number of snowfall days are January and February (0.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Snellville, GA
  • 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in December
Snellville, GA

Average sunshine days in December - Snellville, GA
  • Average sunshine days in December: 17.9 days

The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is July (9.8 days).

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Average UV index in December
Snellville, GA

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

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in December
Snellville, GA

Average cloud cover in December - Snellville, 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 30).

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Average visibility in December
Snellville, GA

Average visibility in December - Snellville, 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).

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Snellville, Georgia, USA

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