December weather forecast
Grayson, GA

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Weather in December

December, the first month of the winter in Grayson, is still a cool month, with an average temperature ranging between max 53.8°F (12.1°C) and min 39.6°F (4.2°C).

Temperature

December's arrival signals a moderate reduction in the average high-temperature, easing from an enjoyable 61.3°F (16.3°C) in November to a fresh 53.8°F (12.1°C). Grayson anticipates an average minimum temperature of 39.6°F (4.2°C) in the month of December.

Humidity

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

Rainfall

In December, in Grayson, the rain falls for 11.5 days. Throughout December, 2.36" (60mm) of precipitation is accumulated. In Grayson, during the entire year, the rain falls for 158.9 days and collects up to 27.32" (694mm) of precipitation.

Snowfall

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

Daylight

The month with the shortest days is December, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 7:23 am and sunset at 5:26 pm. On the last day of December, in Grayson, sunrise is at 7:40 am and sunset at 5:37 pm EST.

Sunshine

The month with the least sunshine in Grayson, Georgia, is December, with an average of 5h of sunshine.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Grayson. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: In December, a daily UV index of 2 turns into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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Frequently asked questions

What are the temperatures in Grayson in December?

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

What is the most humid month in Grayson?

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

What is the average humidity in December in Grayson?

The average relative humidity in December in Grayson, Georgia, is 77%.

How much does it rain in Grayson in December?

In Grayson, Georgia, during December, the rain falls for 11.5 days and regularly aggregates up to 2.36" (60mm) of precipitation.

How much does it snow in Grayson in December?

In Grayson, in December, during 0.5 snowfall days, 0.12" (3mm) of snow is typically accumulated.

What is the month with the shortest days in Grayson?

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

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

In Grayson, the average day length in December is 9h and 56min.

When is the sunrise / sunset in December in Grayson?

On the first day of December in Grayson, Georgia, sunrise is at 7:23 am and sunset at 5:26 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 Grayson?

The month with the least sunshine in Grayson is December, with an average of 5h of sunshine.

How long on average sun shines in December in Grayson?

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

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

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

How high is the UV index in December in Grayson?

In December, the average daily maximum UV index in Grayson is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's 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
Grayson, GA

Average temperature in December - Grayson, 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
Grayson, GA

Average pressure in December - Grayson, 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
Grayson, GA

Average wind speed in December - Grayson, 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
Grayson, GA

Average humidity in December - Grayson, 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
Grayson, GA

Average rainfall in December - Grayson, 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
Grayson, GA

Average rainfall days in December - Grayson, 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
Grayson, GA

Average snowfall in December - Grayson, 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
Grayson, GA

Average snowfall days in December - Grayson, 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
Grayson, GA

Average daylight in December / Average sunshine in December - Grayson, 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
Grayson, GA

Average sunshine days in December - Grayson, 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
Grayson, GA

Average UV index in December - Grayson, 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
Grayson, GA

Average cloud cover in December - Grayson, 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
Grayson, GA

Average visibility in December - Grayson, 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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Grayson, Georgia, USA

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