December weather forecastRichmond Hill, GA

December

Weather in December

The first month of the winter, December, is still a comfortable month in Richmond Hill, Georgia, with an average temperature varying between 62.2°F (16.8°C) and 48.9°F (9.4°C).

Temperature

In December, the average high-temperature marginally drops from 67.8°F (19.9°C) in November to a still enjoyable 62.2°F (16.8°C). An average low-temperature of 48.9°F (9.4°C) is recorded in the month of December.

Humidity

The months with the highest humidity in Richmond Hill are August and December, with an average relative humidity of 77%.

Rainfall

In December, in Richmond Hill, the rain falls for 10.5 days. Throughout December, 2.95" (75mm) of precipitation is accumulated. Throughout the year, in Richmond Hill, Georgia, there are 148.4 rainfall days, and 27.13" (689mm) of precipitation is accumulated.

Snowfall

December is the only month when snow falls in Richmond Hill, Georgia. December is the month with the most snowfall. Snow falls for 0.1 days and accumulates 0.04" (1mm) of snow.

Daylight

The month with the shortest days in Richmond Hill, Georgia, is December, with an average of 10h and 6min of daylight.
On the first day of the month, sunrise is at 7:08 am and sunset at 5:20 pm. On the last day of December, sunrise is at 7:25 am and sunset at 5:31 pm EST.

Sunshine

With an average of 5.5h of sunshine, December has the least sunshine of the year in Richmond Hill.

UV index

In Richmond Hill, the average daily maximum UV index in December is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: In December, a regular UV index of 4 translates into these guidelines:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Stay sun-safe with clothing that is both closely woven and worn loosely. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature in Richmond Hill during December is 62.2°F (16.8°C) and the low-temperature is 48.9°F (9.4°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 96.8°F (36°C).

August and December, with an average relative humidity of 77%, are most humid months.

The average relative humidity in December in Richmond Hill is 77%.

In Richmond Hill, Georgia, during December, the rain falls for 10.5 days and regularly aggregates up to 2.95" (75mm) of precipitation.

December is the month with the most snowfall. Snow falls for 0.1 days and accumulates 0.04" (1mm) of snow.

December is the first month it typically snows in Richmond Hill, Georgia. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

The month with the shortest days in Richmond Hill is December, with an average of 10h and 6min of daylight.

In December, the average day length in Richmond Hill is 10h and 6min.

In December, on the first day of the month, sunrise is at 7:08 am and sunset at 5:20 pm. On the last day of the month, in Richmond Hill, sunrise is at 7:25 am and sunset at 5:31 pm EST.

December has the least sunshine of the year, with an average of 5.5h of sunshine.

In Richmond Hill, the average sunshine duration in December is 5.5h.

The average daily maximum UV index in December in Richmond Hill, Georgia, is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

67.8°F

62.2°F

58.6°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.5mph

7.6mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

21.4

18.8

20.4

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Richmond Hill, GA

Average high temperature in December: 62.2°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (58.6°F).

Average low temperature in December: 48.9°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (43.3°F).

Average pressure in December
Richmond Hill, GA

Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

Average wind speed in December
Richmond Hill, GA

Average wind speed in December: 6.9mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in December
Richmond Hill, GA

Average humidity in December: 77%

The months with the highest relative humidity are August and December (77%).
The months with the lowest relative humidity are January and March (72%).

Average rainfall in December
Richmond Hill, GA

Average rainfall in December: 2.95"

The wettest month (with the highest rainfall) is August (3.43").
The driest months (with the least rainfall) are January and November (1.42").

Average rainfall days in December
Richmond Hill, GA

Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is November (6.8 days).

Average snowfall in December
Richmond Hill, GA

Average snowfall in December: 0.04"

The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Richmond Hill, GA

Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Richmond Hill, GA

Average daylight in December: 10h and 6min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

Average sunshine in December: 5h and 30min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in December
Richmond Hill, GA

Average sunshine days in December: 18.8 days

The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is August (9.4 days).

Average UV index in December
Richmond Hill, GA

Average UV index in December: 4

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

Average cloud cover in December
Richmond Hill, GA

Average cloud cover in December: 40

The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in December
Richmond Hill, 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).