January weather forecast and climate
Atlanta, GA

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

Weather in January

January, like December, in Atlanta, Georgia, is a cool winter month, with average temperature varying between 34.9°F (1.6°C) and 50.5°F (10.3°C).

Temperature

With an average high-temperature of 50.5°F (10.3°C) and an average low-temperature of 34.9°F (1.6°C), January is the coldest month.

Humidity

The average relative humidity in January is 73%.

Rainfall

In January, the rain falls for 8.4 days. Throughout January, 1.02" (26mm) of precipitation is accumulated. Throughout the year, in Atlanta, there are 134.6 rainfall days, and 14.72" (374mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. In Atlanta, snow falls for 0.6 days, with typically accumulated 0.16" (4mm) of snow. Throughout the year, there are 2.3 snowfall days, and 0.59" (15mm) of snow is accumulated.

Daylight

In January, the average length of the day is 10.2h.

Sunshine

In Atlanta, 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 Atlanta. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 2 transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Atlanta?

January is the coldest month in Atlanta, with an average high-temperature of 50.5°F (10.3°C) and an average low-temperature of 34.9°F (1.6°C).

What is the temperature in January in Atlanta?

In Atlanta, Georgia, in January, the average high-temperature is 50.5°F (10.3°C), and the average low-temperature is 34.9°F (1.6°C).

What is the average humidity in January in Atlanta?

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

How many days does it rain in January in Atlanta?

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 January, it is snowing for 0.6 days. Throughout January, 0.16" (4mm) of snow is accumulated.

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

In January, the average length of the day in Atlanta is 10.2h.

How many hours of sunshine does Atlanta have in January?

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

What is the month with the lowest UV index in Atlanta?

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

How high is the UV index in January in Atlanta?

In Atlanta, Georgia, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation.

Average temperature in January
Atlanta, GA

Average temperature in January - Atlanta, GA
  • Average high temperature in January: 10.3°C

The warmest month (with the highest average high temperature) is July (32.6°C).
The month with the lowest average high temperature is January (10.3°C).

  • Average low temperature in January: 1.6°C

The month with the highest average low temperature is July (22°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).

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Average pressure in January
Atlanta, GA

Average pressure in January - Atlanta, GA
  • Average pressure in January: 1021.4mbar

The month with the highest atmospheric pressure is January (1021.4mbar).
The month with the lowest atmospheric pressure is June (1015.5mbar).

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Average wind speed in January
Atlanta, GA

Average wind speed in January - Atlanta, GA
  • Average wind speed in January: 12.9km/h

The windiest month (with the highest average wind speed) is January (12.9km/h).
The calmest month (with the lowest average wind speed) is August (7.3km/h).

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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%).
Months with the lowest relative humidity are July and August (69%).

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Average rainfall in January
Atlanta, GA

Average rainfall in January - Atlanta, GA
  • Average rainfall in January: 26mm

The wettest month (with the highest rainfall) is August (59mm).
The driest month (with the least rainfall) is September (14mm).

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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).

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Average snowfall in January
Atlanta, GA

Average snowfall in January - Atlanta, GA
  • Average snowfall in January: 4mm

The month with the highest snowfall is February (5mm).
Months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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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).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
Atlanta, GA

Average daylight in January / Average sunshine in January - Atlanta, GA
  • Average daylight in January: 10.2h

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 January: 5.8h

Months with the most sunshine are June and July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 5.1h).

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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).

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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).
Months with the lowest UV index are January and December (UV index 2).

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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).

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Average visibility in January
Atlanta, GA

Average visibility in January - Atlanta, GA
  • Average visibility in January: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

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