January weather forecast
Atlanta, GA

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

Weather in January

January, the same as December, is a cool winter month in Atlanta, Georgia, with temperature in the range of an average low of 34.9°F (1.6°C) and an average high of 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

In January, the average relative humidity is 73%.

Rainfall

In Atlanta, during January, the rain falls for 8.4 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Atlanta, during the entire year, the rain falls for 134.6 days and collects up to 14.72" (374mm) of precipitation.

Snowfall

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

Daylight

In January, the average length of the day is 10h and 13min.
On the first day of January in Atlanta, sunrise is at 7:42 am and sunset at 5:40 pm. On the last day of the month, 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

The months with the lowest UV index in Atlanta, Georgia, are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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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 average humidity in January in Atlanta?

In January, the average relative humidity is 73%.

How many days does it rain in January in Atlanta?

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

How many hours of daylight does Atlanta have in January?

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

What time are sunrise and sunset in January in Atlanta?

In January, on the first day of the month, sunrise is at 7:42 am and sunset at 5:40 pm. On the last day of the month, in Atlanta, sunrise is at 7:34 am and sunset at 6:07 pm EST.

How long on average sun shines in January in Atlanta?

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

When is the lowest UV index in Atlanta?

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

What is the UV index reading in January in Atlanta?

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

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).

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Average pressure in January
Atlanta, GA

Average pressure in January - Atlanta, GA
  • Average pressure in January: 30.16"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.99").

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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).

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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%).
The 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: 1.02"

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

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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: 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").

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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).
The 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: 10h and 13min

The month with the longest days is June (Average daylight: 14h and 22min).
The month with the shortest days is December (Average daylight: 9h and 58min).

  • Average sunshine in January: 5.8h

The 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).
The 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: 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).

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