Atlanta Temperatures: Averages by Month





The numbers here tell you how hot and cold the weather usually is in Atlanta, Georgia during each month of the year.

The average high and low temperatures are listed below monthly and annually for Atlanta, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 70, 80 or 90 °F each month in Atlanta, scroll down farther. There are also monthly and yearly counts of nights with warm temperatures and details on days with cold weather.

The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.

10-year temperature averages for Atlanta, 2010 to 2019
High °F Low °F   High °C Low °C
53 35 January 12 1
59 40 February 15 4
66 46 March 19 8
75 54 April 24 12
82 63 May 28 17
88 70 June 31 21
90 72 July 32 22
89 72 August 32 22
86 67 September 30 20
76 56 October 24 13
64 44 November 18 7
58 41 December 14 5
74 55 Year 23 13
30-year temperature averages for Atlanta, 1991 to 2020
High °F Low °F   High °C Low °C
54 36 January 12 2
58 39 February 15 4
66 45 March 19 7
74 53 April 23 11
81 61 May 27 16
87 69 June 31 20
90 72 July 32 22
89 71 August 32 22
84 66 September 29 19
74 55 October 24 13
64 44 November 18 7
56 38 December 13 4
73 54 Year 23 12

Days of Hot Weather in Atlanta

The temperature in Atlanta typically reaches into the 100s Fahrenheit just one day a year. But highs in the 90s can happen from May to September.

Most summer days have maximum temperatures of over 80 degrees, while nighttime lows remain above 70.

Days per month in Atlanta of at least 70, 80 or 90 °F
  70 °F
21 °C
80 °F
27 °C
90 °F
32 °C
January 2 0 0
February 4 0 0
March 12 2 0
April 21 8 0
May 29 20 2
June 30 27 10
July 31 30 16
August 31 30 14
September 29 22 5
October 23 8 0
November 9 1 0
December 3 0 0
Year 222 147 47
Average number of days monthly in Atlanta that drop to 50, 60 or 70 °F or lower
  50 °F
10 °C
60 °F
16 °C
70 °F
21 °C
January 29 31 31
February 25 28 28
March 22 30 31
April 12 25 30
May 3 12 30
June 0 2 20
July 0 0 9
August 0 0 11
September 1 6 23
October 10 23 31
November 23 29 30
December 27 31 31
Year 150 214 304

How Often Atlanta Has Cold Temperatures

It can get cold in Atlanta, though that doesn't occur often. The city averages four night a year when the thermometer plummets to 20 °F or lower. But it doesn't normally get colder than 10 °F.

Even so, Atlanta's winter weather can be highly variable. It's not uncommon for a night in December or January to get no colder than 50 °F.

Overall, freezing temperatures happen during 36 nights a year on average, from November to March. Once a year, the temperature in Atlanta doesn't make it above freezing all day.

References

Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

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