Atlanta, GA Climate & Monthly Averages
Atlanta has a humid subtropical climate. July is the hottest month, averaging 88° by day; January is the coldest at 52°.
Sunshine is a defining feature of Atlanta's climate
Atlanta averages 62°F (17°C) across the year, with 9.0 hours of sunshine a day and 60.9 inches (1548 mm) of precipitation. The spread runs from January, at 52°F (11°C), to July, at 88°F (31°C).
How sun, temperature and rain fit together
January is the coolest month, with highs of 52°F (11°C) and lows near 36°F (2°C). July is the warm end of the year, averaging 88°F (31°C) by day and 71°F (22°C) overnight. Precipitation concentrates in July - 7.0 inches (179 mm) on 17 days - and thins out by October.
Snowfall is rare but not unheard of. Four of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is March through May. June is the brightest month at 11.2 hours of sun a day, against an annual average of 9.0. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 100°F (38°C) and the lowest daily minimum 8°F (-14°C).
More climate facts for Atlanta
- Hottest month: July - highs near 88°F (31°C)
- Coldest month: January - highs near 52°F (11°C)
- Decade extremes (2015-2024): 100°F (38°C) high · 8°F (-14°C) low
- Wettest month: July (17 rainy days) · Sunniest: June (11.2 h sun/day)
- Climate type: humid subtropical
- Annual swing: 20°C between the average warmest and coolest month · day to night: 10°C
- Months averaging 30°C or hotter: 2
- Average humidity: 72%
The most comfortable sunny-weather window
Best time to visit Atlanta
March to May and September to November is the sweet spot for Atlanta - warm days, manageable rainfall and plenty of daylight line up. Expect 72°F (22°C) in the afternoon and around 10 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in March.
What to pack
Pack for Atlanta with light clothing for the warm months, a warm jacket and layers for the cooler season and proper waterproofs rather than an umbrella - wet days are the norm here. Note the gap between afternoon and night: July pairs 88°F (31°C) with 71°F (22°C).
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 52° | 36° | 10 | 5.3 in | 6.7 h/day | 10.1 h | 34% | 71% |
| February | 58° | 40° | 12 | 5.8 in | 6.6 h/day | 10.9 h | 43% | 72% |
| March | 65° | 46° | 12 | 4.9 in | 8.1 h/day | 11.9 h | 37% | 70% |
| April | 71° | 51° | 10 | 4.7 in | 10.1 h/day | 13.0 h | 35% | 67% |
| May | 80° | 60° | 12 | 4.8 in | 10.8 h/day | 13.9 h | 37% | 69% |
| June | 85° | 68° | 14 | 4.6 in | 11.2 h/day | 14.4 h | 48% | 72% |
| July | 88° | 71° | 17 | 7.0 in | 11.2 h/day | 14.2 h | 55% | 76% |
| August | 87° | 70° | 17 | 5.9 in | 10.8 h/day | 13.4 h | 54% | 76% |
| September | 82° | 66° | 10 | 5.0 in | 9.9 h/day | 12.3 h | 33% | 72% |
| October | 73° | 55° | 8 | 3.7 in | 8.8 h/day | 11.3 h | 25% | 71% |
| November | 63° | 45° | 8 | 3.8 in | 7.5 h/day | 10.4 h | 26% | 72% |
| December | 56° | 40° | 11 | 5.3 in | 5.9 h/day | 9.9 h | 35% | 76% |
Atlanta month by month
Each card shows the average high and low. The bar places that month between Atlanta's coldest night and warmest afternoon.
January
- Rain
- 10 days
- Sunshine
- 6.7 h
- Daylight
- 10.1 h
February
- Rain
- 12 days
- Sunshine
- 6.6 h
- Daylight
- 10.9 h
March
- Rain
- 12 days
- Sunshine
- 8.1 h
- Daylight
- 11.9 h
April
- Rain
- 10 days
- Sunshine
- 10.1 h
- Daylight
- 13.0 h
May
- Rain
- 12 days
- Sunshine
- 10.8 h
- Daylight
- 13.9 h
June
- Rain
- 14 days
- Sunshine
- 11.2 h
- Daylight
- 14.4 h
July
- Rain
- 17 days
- Sunshine
- 11.2 h
- Daylight
- 14.2 h
August
- Rain
- 17 days
- Sunshine
- 10.8 h
- Daylight
- 13.4 h
September
- Rain
- 10 days
- Sunshine
- 9.9 h
- Daylight
- 12.3 h
October
- Rain
- 8 days
- Sunshine
- 8.8 h
- Daylight
- 11.3 h
November
- Rain
- 8 days
- Sunshine
- 7.5 h
- Daylight
- 10.4 h
December
- Rain
- 11 days
- Sunshine
- 5.9 h
- Daylight
- 9.9 h
Looking for warmer alternatives? Browse warm places by month, or compare Atlanta's coolest part of the year: January, December, February.
Seasonal weather under Atlanta's sunnier skies
Spring (March through May)
Through spring, Atlanta brings comfortable warmth: 72°F (22°C) by day, 52°F (11°C) after dark, and rain falls on around 34 of the 90 days.
Summer (June through August)
Through summer, Atlanta is hot: 87°F (30°C) by day, 70°F (21°C) after dark, and rain falls on around 48 of the 90 days. Daylight is generous - around 11.1 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.
Fall (September through November)
Through fall, Atlanta brings comfortable warmth: 73°F (23°C) by day, 55°F (13°C) after dark, and expect showers on roughly 26 days across the season.
Winter (December through February)
Through winter, Atlanta stays on the cool side of mild: 56°F (13°C) by day, 39°F (4°C) after dark, and rain falls on around 33 of the 90 days.
How unusual is Atlanta?
- Atlanta sits close to the middle of our dataset on most measures: 62°F (17°C) as an annual average, 60.9 inches (1548 mm) of precipitation and 9.0 hours of sun a day.
These comparisons use the same ten-year window for every city in the dataset.
Atlanta temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.