December weather forecast
Glenn, GA

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Weather in December

The first month of the winter, December, is still a cool month in Glenn, Georgia, with an average temperature ranging between max 55.2°F (12.9°C) and min 40.3°F (4.6°C).

Temperature

Glenn in December undergoes a slight reduction in the average high-temperature, shifting from November's enjoyable 61.9°F (16.6°C) to a fresh 55.2°F (12.9°C). An average low-temperature of 40.3°F (4.6°C) is observed during the December nights.

Humidity

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

Rainfall

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

Snowfall

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

Daylight

December has the shortest days of the year in Glenn, with an average of 10h and 0min of daylight.
On the first day of December, sunrise is at 7:26 am and sunset at 5:33 pm. On the last day of the month, sunrise is at 7:43 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 in Glenn.

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 value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: In December, the maximum UV index of 3 suggests this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

What is the average December temperature in Glenn?

In December, the average high-temperature and low-temperature in Glenn, Georgia, are 55.2°F (12.9°C) and 40.3°F (4.6°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in September is estimated at 91.4°F (33°C).

What is the most humid month in Glenn?

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

What is the average humidity in December in Glenn?

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

How many days does it rain in December in Glenn?

In December, in Glenn, Georgia, the rain falls for 14 days. Throughout December, 3.74" (95mm) of precipitation is accumulated.

When does it start snowing in Glenn?

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 in Glenn?

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 Glenn?

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

What time are sunrise and sunset in December in Glenn?

On the first day of December, sunrise is at 7:26 am and sunset at 5:33 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:44 pm EST.

What are the months with the least sunshine in Glenn?

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

How long on average sun shines in December in Glenn?

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

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

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

What is the UV index intensity in December in Glenn?

In December, the average daily maximum UV index in Glenn is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Glenn, GA

Average temperature in December - Glenn, 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
Glenn, GA

Average pressure in December - Glenn, 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
Glenn, GA

Average wind speed in December - Glenn, 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
Glenn, GA

Average humidity in December - Glenn, 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
Glenn, GA

Average rainfall in December - Glenn, 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
Glenn, GA

Average rainfall days in December - Glenn, 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
Glenn, GA

Average snowfall in December - Glenn, 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
Glenn, GA

Average snowfall days in December - Glenn, 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
Glenn, GA

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

Average sunshine days in December - Glenn, 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
Glenn, GA

Average UV index in December - Glenn, 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
Glenn, GA

Average cloud cover in December - Glenn, 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
Glenn, GA

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

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