January weather forecast
Atlanta, GA

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Beautiful sky and cityscape of Atlanta in Georgia, USA
Beautiful sky and cityscape of Atlanta in Georgia, USA

Weather in January

January's weather in Atlanta, Georgia commences the year with low temperatures hence, the need for a heavy coat. Exposed to highs of 50.5°F (10.3°C) and lows of 34.9°F (1.6°C), wintry weather persists. In comparison to December, January exhibits a slight uptick in temperature and daylight hours. Residents should anticipate ample conditions for indoor activities. With overcast skies dominating part of the month, spontaneous bursts of sunshine remain accessible.

Temperature

The month of January sees the lowest average temperatures, reaching 50.5°F (10.3°C) at the peak and 34.9°F (1.6°C) at the low.

Humidity

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

Rainfall

In Atlanta, in January, it is raining for 8.4 days, with typically 1.02" (26mm) of accumulated precipitation. In Atlanta, during the entire year, the rain falls for 134.6 days and collects up to 14.72" (374mm) of precipitation.

Snowfall

January through March and December are months with snowfall in Atlanta. In Atlanta, in January, snow falls for 0.6 days, with typically accumulated 0.16" (4mm) of snow. In Atlanta, during the entire year, snow falls for 2.3 days and aggregates up to 0.59" (15mm) of snow.

Daylight

In January, the average length of the day in Atlanta, Georgia, is 10h and 13min.
On the first day of the month, sunrise is at 7:42 am and sunset at 5:39 pm. On the last day of January, sunrise is at 7:34 am and sunset at 6:07 pm EST.

Sunshine

In Atlanta, the average sunshine in January is 5.8h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the maximum UV index of 2 suggests this advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Atlanta?

The coldest period in Atlanta, Georgia, tends to be January, when average temperatures fluctuate between a high of 50.5°F (10.3°C) and a low of 34.9°F (1.6°C).

What is the temperature in January in Atlanta?

The average high-temperature and low-temperature in Atlanta during January are 50.5°F (10.3°C) and 34.9°F (1.6°C) respectively.

What is the average humidity in January in Atlanta?

In Atlanta, Georgia, the average relative humidity in January is 73%.

How much does it rain in Atlanta in January?

In Atlanta, Georgia, in January, it is raining for 8.4 days, with typically 1.02" (26mm) of accumulated precipitation.

How much does it snow in Atlanta in January?

In Atlanta, in January, snow falls for 0.6 days, with typically accumulated 0.16" (4mm) of snow.

What is the average length of the day in January in Atlanta?

The average day length in January in Atlanta, Georgia, is 10h and 13min.

When is the sunrise / sunset in January in Atlanta?

On the first day of January in Atlanta, Georgia, sunrise is at 7:42 am and sunset at 5:39 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 6:07 pm EST.

How many hours of sunshine does Atlanta have in January?

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

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

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

What is the UV index intensity in January in Atlanta?

In Atlanta, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from 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
Atlanta, GA

Average temperature in January - Atlanta, GA
  • Average high temperature in January: 50.5°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 (50.5°F).

  • Average low temperature in January: 34.9°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).

Average pressure in January
Atlanta, GA

Average pressure in January - Atlanta, 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
Atlanta, GA

Average wind speed in January - Atlanta, GA
  • Average wind speed in January: 8mph

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).

Average humidity in January
Atlanta, GA

Average humidity in January - Atlanta, GA
  • Average humidity in January: 73%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July and August (69%).

Average rainfall in January
Atlanta, GA

Average rainfall in January - Atlanta, GA
  • Average rainfall in January: 1.02"

The wettest month (with the highest rainfall) is August (2.32").
The driest month (with the least rainfall) is September (0.55").

Average rainfall days in January
Atlanta, GA

Average rainfall days in January - Atlanta, GA
  • Average rainfall days in January: 8.4 days

The month with the highest number of rainy days is August (17.1 days).
The month with the least rainy days is November (6.9 days).

Average snowfall in January
Atlanta, GA

Average snowfall in January - Atlanta, GA
  • Average snowfall in January: 0.16"

The month with the highest snowfall is February (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in January
Atlanta, GA

Average snowfall days in January - Atlanta, GA
  • Average snowfall days in January: 0.6 days

The month with the highest number of snowfall days is February (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
Atlanta, GA

Average daylight in January / Average sunshine in January - Atlanta, 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 months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in January
Atlanta, GA

Average sunshine days in January - Atlanta, GA
  • Average sunshine days in January: 20.8 days

The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (10.9 days).

Average UV index in January
Atlanta, GA

Average UV index in January - Atlanta, GA
  • Average UV index in January: 2

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

Average cloud cover in January
Atlanta, GA

Average cloud cover in January - Atlanta, GA
  • Average cloud cover in January: 42

The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in January
Atlanta, GA

Average visibility in January - Atlanta, 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).

Atlanta, Georgia, USA

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