January weather forecast
Stone Mountain, GA

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Weather in January

January, like December, in Stone Mountain, Georgia, is a cool winter month, with an average temperature ranging between min 35.2°F (1.8°C) and max 50.5°F (10.3°C).

Temperature

January proves to be the coldest month, recording an average maximum temperature of 50.5°F (10.3°C) and a minimum temperature of 35.2°F (1.8°C).

Humidity

In Stone Mountain, the average relative humidity in January is 73%.

Rainfall

In Stone Mountain, in January, during 12.5 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. In Stone Mountain, during the entire year, the rain falls for 182.9 days and collects up to 40.39" (1026mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In January, it is snowing for 0.9 days. Throughout January, 0.51" (13mm) of snow is accumulated. In Stone Mountain, during the entire year, snow falls for 2.4 days and aggregates up to 1.5" (38mm) of snow.

Daylight

In January, the average length of the day is 10h and 13min.
On the first day of January, sunrise is at 7:41 am and sunset at 5:38 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 6:06 pm EST.

Sunshine

In January, the average sunshine is 5.8h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Stone Mountain. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index, 2 during January, leads to the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

The coldest month is January, with an average high-temperature of 50.5°F (10.3°C) and an average low-temperature of 35.2°F (1.8°C).

What are the temperatures in Stone Mountain in January?

Stone Mountain in January has an average high-temperature of 50.5°F (10.3°C) and an average low-temperature of 35.2°F (1.8°C).

What is the average humidity in January?

In Stone Mountain, the average relative humidity in January is 73%.

How much does it rain in January?

In Stone Mountain, in January, it is raining for 12.5 days, with typically 3.07" (78mm) of accumulated precipitation.

How much does it snow in January?

In Stone Mountain, during January, snow falls for 0.9 days and regularly aggregates up to 0.51" (13mm) of snow.

How many hours of daylight does Stone Mountain have in January?

In Stone Mountain, the average day length in January is 10h and 13min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:41 am and sunset at 5:38 pm. On the last day of the month, in Stone Mountain, sunrise is at 7:34 am and sunset at 6:06 pm EST.

How long on average sun shines in January?

In Stone Mountain, the average sunshine duration in January is 5.8h.

When is the lowest UV index?

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

How high is the UV index in January?

In Stone Mountain, the average daily maximum UV index in January is 2. A UV Index reading 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 January
Stone Mountain, GA

Average temperature in January - Stone Mountain, GA
  • Average high temperature in January: 50.5°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (50.5°F).

  • Average low temperature in January: 35.2°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 (35.2°F).

Average pressure in January
Stone Mountain, GA

Average pressure in January - Stone Mountain, GA
  • Average pressure in January: 30.16"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).

Average wind speed in January
Stone Mountain, GA

Average wind speed in January - Stone Mountain, GA
  • Average wind speed in January: 7.9mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in January
Stone Mountain, GA

Average humidity in January - Stone Mountain, GA
  • Average humidity in January: 73%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).

Average rainfall in January
Stone Mountain, GA

Average rainfall in January - Stone Mountain, GA
  • Average rainfall in January: 3.07"

The wettest month (with the highest rainfall) is August (5.35").
The driest month (with the least rainfall) is October (2.2").

Average rainfall days in January
Stone Mountain, GA

Average rainfall days in January - Stone Mountain, GA
  • Average rainfall days in January: 12.5 days

The month with the highest number of rainy days is July (22.6 days).
The month with the least rainy days is November (9.9 days).

Average snowfall in January
Stone Mountain, GA

Average snowfall in January - Stone Mountain, GA
  • Average snowfall in January: 0.51"

The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in January
Stone Mountain, GA

Average snowfall days in January - Stone Mountain, GA
  • Average snowfall days in January: 0.9 days

The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Stone Mountain, GA

Average daylight in January / Average sunshine in January - Stone Mountain, GA
  • Average daylight in January: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in January: 5h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in January
Stone Mountain, GA

Average sunshine days in January - Stone Mountain, GA
  • Average sunshine days in January: 16.8 days

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (6.9 days).

Average UV index in January
Stone Mountain, GA

Average UV index in January - Stone Mountain, GA
  • Average UV index in January: 2

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 and December (UV index 2).

Average cloud cover in January
Stone Mountain, GA

Average cloud cover in January - Stone Mountain, GA
  • Average cloud cover in January: 41

The months with the most cloud cover are February and December (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in January
Stone Mountain, GA

Average visibility in January - Stone Mountain, GA
  • Average visibility in January: 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).

Stone Mountain, Georgia, USA

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