Lilburn
Georgia, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Lilburn, GA

The first month of the winter, December, is still a cool month in Lilburn, Georgia, with average temperature ranging between max 53.6°F (12°C) and min 39.2°F (4°C).

Temperature

In December, the average high-temperature slightly decreases, from an enjoyable 61°F (16.1°C) in November, to a fresh 53.6°F (12°C). The average low-temperature, in Lilburn, is 39.2°F (4°C).

Humidity

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

Rainfall

In Lilburn, Georgia, in December, it is raining for 10.4 days, with typically 1.77" (45mm) of accumulated precipitation. Throughout the year, in Lilburn, there are 154.1 rainfall days, and 23.74" (603mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Lilburn, in December, snow falls for 0.3 days, with typically accumulated 0.08" (2mm) of snow. Throughout the year, in Lilburn, there are 2.6 snowfall days, and 0.75" (19mm) of snow is accumulated.

Daylight

With an average of 9.9h of daylight, December has the shortest days of the year.

Sunshine

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

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 2 in December transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Lilburn?

The average high-temperature, in December, in Lilburn, is 53.6°F (12°C), while the average low-temperature is 39.2°F (4°C).

What is the most humid month in Lilburn?

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

What is the average humidity in December in Lilburn?

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

How much does it rain in Lilburn in December?

In Lilburn, in December, during 10.4 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.

How many days does it snow in December in Lilburn?

In Lilburn, in December, snow falls for 0.3 days, with typically accumulated 0.08" (2mm) of snow.

What is the month with the shortest days in Lilburn?

The month with the shortest days in Lilburn, Georgia, is December, with an average of 9.9h of daylight.

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

In December, the average length of the day in Lilburn, Georgia, is 9.9h.

What is the month with the least sunshine in Lilburn?

December has the least sunshine of the year in Lilburn, Georgia, with an average of 5h of sunshine.

How long on average sun shines in December in Lilburn?

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

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

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

How high is the UV index in December in Lilburn?

The average daily maximum UV index in December in Lilburn is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to the UV radiation.
Average temperature in December - Lilburn, 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 (49.6°F).

  • Average low temperature in December: 39.2°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).

Average humidity in December - Lilburn, 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%).

Average rainfall in December - Lilburn, GA
  • Average rainfall in December: 1.77"

The wettest month (with the highest rainfall) is August (3.58").
The driest months (with the least rainfall) are January and October (1.34").

Average rainfall days in December - Lilburn, GA
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is November (8.6 days).

Average snowfall in December - Lilburn, GA
  • Average snowfall in December: 0.08"

The month with the highest snowfall is January (0.31").
Months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December - Lilburn, GA
  • Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is January (1.1 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Lilburn, GA
  • Average daylight in December: 9.9h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in December: 5h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is December (Average sunshine: 5h).

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

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