December weather forecast
Union City, GA

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Weather in December

December, the first month of the winter in Union City, is still a cool month, with an average temperature varying between 39.7°F (4.3°C) and 54.5°F (12.5°C).

Temperature

With the beginning of December, the average high-temperature shows a small decrease, transitioning from an enjoyable 61.5°F (16.4°C) in November to a cool 54.5°F (12.5°C). In December, the temperature drops to an average of 39.7°F (4.3°C) at night.

Humidity

The most humid month in Union City is December, with an average relative humidity of 78%.

Rainfall

In December, in Union City, the rain falls for 13.7 days. Throughout December, 3.7" (94mm) of precipitation is accumulated. Throughout the year, in Union City, there are 177.7 rainfall days, and 40.16" (1020mm) of precipitation is accumulated.

Snowfall

January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.5 snowfall days, it receives 0.39" (10mm) of snow. Throughout the year, there are 3.8 snowfall days, and 1.61" (41mm) of snow is accumulated.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year.
On the first day of December in Union City, sunrise is at 7:24 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:40 pm EST.

Sunshine

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

UV index

December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 2 during December translates into the following directions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

What is the average December temperature in Union City?

In Union City, in December, the average high-temperature is 54.5°F (12.5°C), and the average low-temperature is 39.7°F (4.3°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is appraised at 91.4°F (33°C).

What is the most humid month in Union City?

With an average relative humidity of 78%, December is the most humid month in Union City.

What is the average humidity in December in Union City?

In Union City, Georgia, the average relative humidity in December is 78%.

How many days does it rain in December in Union City?

In Union City, Georgia, during December, the rain falls for 13.7 days and regularly aggregates up to 3.7" (94mm) of precipitation.

When does it start to snow in Union City?

December is the first month it typically snows in Union City. Throughout December, in the average 0.5 snowfall days, it receives 0.39" (10mm) of snow.

What is the month with the shortest days in Union City?

With an average of 10h and 0min of daylight, December has the shortest days of the year in Union City.

What is the average length of the day in December in Union City?

The average day length in December is 9h and 58min.

When are sunrise and sunset in December in Union City?

On the first day of December in Union City, sunrise is at 7:24 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:40 pm EST.

What is the month with the least sunshine in Union City?

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

How long on average sun shines in December in Union City?

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

What is the month with the lowest UV index in Union City?

The month with the lowest UV index in Union City, Georgia, is December, with an average maximum UV index of 2.

How high is the UV index in December in Union City?

In December, the average daily maximum UV index in Union City, Georgia, is 2. A UV Index estimate of 2, and below, represents a minimal 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
Union City, GA

Average temperature in December - Union City, GA
  • Average high temperature in December: 54.5°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (50.7°F).

  • Average low temperature in December: 39.7°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

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Average pressure in December
Union City, GA

Average pressure in December - Union City, 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
Union City, GA

Average wind speed in December - Union City, GA
  • Average wind speed in December: 7.5mph

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
Union City, GA

Average humidity in December - Union City, GA
  • Average humidity in December: 78%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Union City, GA

Average rainfall in December - Union City, GA
  • Average rainfall in December: 3.7"

The wettest month (with the highest rainfall) is August (4.8").
The driest month (with the least rainfall) is October (2.13").

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Average rainfall days in December
Union City, GA

Average rainfall days in December - Union City, GA
  • Average rainfall days in December: 13.7 days

The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (9.5 days).

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Average snowfall in December
Union City, GA

Average snowfall in December - Union City, GA
  • Average snowfall in December: 0.39"

The months with the highest snowfall are January and February (0.55").
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
Union City, GA

Average snowfall days in December - Union City, GA
  • Average snowfall days in December: 0.5 days

The month with the highest number of snowfall days is January (1.4 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Union City, GA

Average daylight in December / Average sunshine in December - Union City, 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 month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in December
Union City, GA

Average sunshine days in December - Union City, GA
  • Average sunshine days in December: 15.9 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is June (9.2 days).

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Average UV index in December
Union City, GA

Average UV index in December - Union City, GA
  • Average UV index in December: 2

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

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Average cloud cover in December
Union City, GA

Average cloud cover in December - Union City, GA
  • Average cloud cover in December: 47

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

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Average visibility in December
Union City, GA

Average visibility in December - Union City, 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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Union City, Georgia, USA

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