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 an average temperature fluctuating between 40.3°F (4.6°C) and 55.2°F (12.9°C).

Temperature

Mason's transition into December involves a gentle shift in temperature, receding from an enjoyable 61.9°F (16.6°C) in November to a cool 55.2°F (12.9°C). An average minimum temperature of 40.3°F (4.6°C) is recorded during the month of December.

Humidity

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

Rainfall

In Mason, in December, during 14 rainfall days, 3.74" (95mm) of precipitation is typically accumulated. Throughout the year, in Mason, Georgia, there are 181.7 rainfall days, and 39.06" (992mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. December is the first month it typically snows. 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

The month with the shortest days is December, with an average of 10h and 0min of daylight.
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, sunrise is at 7:44 am and sunset at 5:44 pm EST.

Sunshine

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

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 3 during December, leads to the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.

Frequently asked questions

What is the usual temperature for Mason in December?

The high-temperature, in December, in Mason, records 55.2°F (12.9°C), while the low-temperature is 40.3°F (4.6°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in September is estimated at 91.4°F (33°C).

What is the most humid month?

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

What is the average humidity in December in Mason?

In Mason, the average relative humidity in December is 80%.

How much does it rain in December?

In Mason, in December, during 14 rainfall days, 3.74" (95mm) of precipitation is typically accumulated.

When does it start to snow?

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

How many hours of daylight does Mason have in December?

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 7:27 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?

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 December, the average sunshine duration is 5h.

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

In Mason, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Mason, Georgia, USA

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