December weather forecast
Brookhaven, GA

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Weather in December

December, the first month of the winter in Brookhaven, is also a fresh month, with temperature in the range of an average high of 53.6°F (12°C) and an average low of 39.6°F (4.2°C).

Temperature

The transition into December is accompanied by a slight temperature decrease, with the average high-temperature shifting from a refreshing 61°F (16.1°C) in November to a fresh 53.6°F (12°C). The nighttime temperature in Brookhaven dips to a cold 39.6°F (4.2°C) on average during December.

Humidity

With an average relative humidity of 77%, December is the most humid month in Brookhaven, Georgia.

Rainfall

In Brookhaven, during December, the rain falls for 13.5 days and regularly aggregates up to 3.86" (98mm) of precipitation. In Brookhaven, during the entire year, the rain falls for 187.2 days and collects up to 44.13" (1121mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall in Brookhaven. In Brookhaven, during December, snow falls for 0.5 days and regularly aggregates up to 0.47" (12mm) of snow. Throughout the year, there are 3.5 snowfall days, and 2.64" (67mm) of snow is accumulated.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year in Brookhaven.
On the first day of the month, sunrise is at 7:24 am and sunset at 5:28 pm. On the last day of December, in Brookhaven, sunrise is at 7:42 am and sunset at 5:39 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 5.1h of sunshine.

UV index

The months with the lowest UV index in Brookhaven, Georgia, are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

What is the average December temperature in Brookhaven?

The average high-temperature and low-temperature in Brookhaven during December are 53.6°F (12°C) and 39.6°F (4.2°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is appraised at 91.4°F (33°C).

What is the most humid month in Brookhaven?

With an average relative humidity of 77%, December is the most humid month in Brookhaven, Georgia.

What is the average humidity in December in Brookhaven?

In Brookhaven, the average relative humidity in December is 77%.

How many days does it rain in December in Brookhaven?

In Brookhaven, in December, during 13.5 rainfall days, 3.86" (98mm) of precipitation is typically accumulated.

How much does it snow in Brookhaven in December?

In Brookhaven, Georgia, during December, snow falls for 0.5 days and regularly aggregates up to 0.47" (12mm) of snow.

What is the month with the shortest days in Brookhaven?

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

How many hours of daylight does Brookhaven have in December?

The average day length in December in Brookhaven, Georgia, is 9h and 57min.

When is the sunrise / sunset in December in Brookhaven?

In December, on the first day of the month, sunrise is at 7:24 am and sunset at 5:28 pm. On the last day of the month, in Brookhaven, Georgia, sunrise is at 7:42 am and sunset at 5:39 pm EST.

What is the month with the least sunshine in Brookhaven?

December has the least sunshine of the year in Brookhaven, with an average of 5.1h of sunshine.

How long on average sun shines in December in Brookhaven?

In December, the average sunshine duration in Brookhaven, Georgia, is 5.1h.

When is the lowest UV index in Brookhaven?

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

What is the UV index reading in December in Brookhaven?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Brookhaven, GA

Average temperature in December - Brookhaven, GA
  • Average high temperature in December: 53.6°F

The warmest month (with the highest average high temperature) is July (90.7°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 (34.3°F).

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Average pressure in December
Brookhaven, GA

Average pressure in December - Brookhaven, 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
Brookhaven, GA

Average wind speed in December - Brookhaven, 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
Brookhaven, GA

Average humidity in December - Brookhaven, 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 (68%).

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Average rainfall in December
Brookhaven, GA

Average rainfall in December - Brookhaven, GA
  • Average rainfall in December: 3.86"

The wettest month (with the highest rainfall) is August (5.63").
The driest month (with the least rainfall) is October (2.28").

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Average rainfall days in December
Brookhaven, GA

Average rainfall days in December - Brookhaven, GA
  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is July (21.6 days).
The month with the least rainy days is October (10.4 days).

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Average snowfall in December
Brookhaven, GA

Average snowfall in December - Brookhaven, GA
  • Average snowfall in December: 0.47"

The month with the highest snowfall is January (1.06").
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
Brookhaven, GA

Average snowfall days in December - Brookhaven, 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 and October (0 days).

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Average daylight in December /
Average sunshine in December
Brookhaven, GA

Average daylight in December / Average sunshine in December - Brookhaven, 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 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in December
Brookhaven, GA

Average sunshine days in December - Brookhaven, GA
  • Average sunshine days in December: 15.2 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (6.9 days).

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Average UV index in December
Brookhaven, GA

Average UV index in December - Brookhaven, GA
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in December
Brookhaven, GA

Average cloud cover in December - Brookhaven, 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
Brookhaven, GA

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

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