December weather forecast
Mason, GA

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Weather in December

The first month of the winter, December, is also a fresh month in Mason, Georgia, with temperature in the range of an average high of 55.2°F (12.9°C) and an average low of 40.3°F (4.6°C).

Temperature

December is marked by a subtle drop in average high-temperatures, transitioning from a comfortable 61.9°F (16.6°C) in November to a cool 55.2°F (12.9°C). During the nights in December, Mason experiences a consistent average temperature of 40.3°F (4.6°C).

Humidity

The most humid month in Mason is December, with an average relative humidity of 80%.

Rainfall

In Mason, in December, it is raining for 14 days, with typically 3.74" (95mm) of accumulated precipitation. In Mason, Georgia, during the entire year, the rain falls for 181.7 days and collects up to 39.06" (992mm) of precipitation.

Snowfall

Months with snowfall in Mason are January through March and December. December is the first month it typically snows in Mason. Throughout December, in the average 0.6 snowfall days, it receives 0.35" (9mm) of snow. In Mason, during the entire year, snow falls for 3.5 days and aggregates up to 1.18" (30mm) of snow.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year in Mason.
On the first day of the month, sunrise is at 7:27 am and sunset at 5:33 pm. On the last day of December, in Mason, sunrise is at 7:44 am and sunset at 5:44 pm EST.

Sunshine

The months with the least sunshine in Mason, Georgia, are February and December, with an average of 5h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Mason. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 3 during December translates into the following guidance:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

What is the usual temperature for Mason in December?

In December, the average high-temperature and low-temperature in Mason are 55.2°F (12.9°C) and 40.3°F (4.6°C) respectively. In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is calculated to be 91.4°F (33°C).

What is the most humid month in Mason?

December is the most humid month, with an average relative humidity of 80%.

What is the average humidity in December in Mason?

The average relative humidity in December is 80%.

How many days does it rain in December in Mason?

In Mason, Georgia, during December, the rain falls for 14 days and regularly aggregates up to 3.74" (95mm) of precipitation.

When does it start snowing in Mason?

December is the first month it typically snows in Mason, Georgia. Throughout December, in the average 0.6 snowfall days, it receives 0.35" (9mm) of snow.

What is the month with the shortest days in Mason?

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

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

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

What time are sunrise and sunset in December in Mason?

On the first day of December in Mason, Georgia, sunrise is at 7:27 am and sunset at 5:33 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:44 pm EST.

What are the months with the least sunshine in Mason?

February and December, with an average of 5h of sunshine, are months with the least sunshine.

How many hours of sunshine does Mason have in December?

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

What are the months with the lowest UV index in Mason?

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

What is the UV index intensity in December in Mason?

The average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Mason, GA

Average temperature in December - Mason, GA
  • Average high temperature in December: 55.2°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (52°F).

  • Average low temperature in December: 40.3°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).

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Average pressure in December
Mason, GA

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in December
Mason, GA

Average wind speed in December - Mason, GA
  • Average wind speed in December: 7.2mph

The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).

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Average humidity in December
Mason, GA

Average humidity in December - Mason, GA
  • Average humidity in December: 80%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Mason, GA

Average rainfall in December - Mason, GA
  • Average rainfall in December: 3.74"

The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is October (1.93").

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Average rainfall days in December
Mason, GA

Average rainfall days in December - Mason, GA
  • Average rainfall days in December: 14 days

The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall in December
Mason, GA

Average snowfall in December - Mason, GA
  • Average snowfall in December: 0.35"

The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Mason, GA

Average snowfall days in December - Mason, GA
  • Average snowfall days in December: 0.6 days

The month with the highest number of snowfall days is January (1.3 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
Mason, GA

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

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).

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Average sunshine days in December
Mason, GA

Average sunshine days in December - Mason, GA
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (7.5 days).

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Average UV index in December
Mason, GA

Average UV index in December - Mason, GA
  • Average UV index in December: 3

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, February, November and December (UV index 3).

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Average cloud cover in December
Mason, GA

Average cloud cover in December - Mason, GA
  • Average cloud cover in December: 47

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 31).

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Average visibility in December
Mason, GA

Average visibility in December - Mason, GA
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).

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Mason, Georgia, USA

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