Stone Mountain (GA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Stone Mountain.
Climate overview of Stone Mountain
Stone Mountain, Georgia, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 32°C (90°F) in July, while winters cool to 11°C (52°F) in January.
With around 1258 mm (50 in) of annual rain/snowfall, Stone Mountain has a notably wet climate. The wettest month is December. The most sunshine falls in May, with an average of 9.6 hours of daily sunshine.
Stone Mountain Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Stone Mountain — and find the best time to visit.
Monthly Temperature in Stone Mountain
Depending on the time of the year, temperatures range from very warm to chilly in Stone Mountain. Average daytime temperatures reach a very warm 32°C (90°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 11°C (52°F).
At night, temperatures range from around 21°C (70°F) in July to 0°C (32°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Stone Mountain
Stone Mountain has a relatively rain/snowy climate with high precipitation levels, averaging 1258 mm (50 in) of rain/snowfall annually. Stone Mountain experiences moderate seasonal variation in rainfall, with monthly averages ranging from 149 mm (5.9 in) in December, the wettest month, and 84 mm (3.3 in) in June, the driest month. For more details, please visit our Stone Mountain Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Stone Mountain
Stone Mountain can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 9.6 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 5.5 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Stone Mountain by Month
The relative humidity is high throughout the year in Stone Mountain.
The city experiences its highest humidity in August, reaching 75%. In April, the humidity drops to its lowest level at 61%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Stone Mountain
Rainfall during this time ranges from 92 mm (3.6 in) in May to 105 mm (4.1 in) in March. This means you can expect a mix of sunny days and occasional showers. Wondering where to travel based on your weather preferences? Our recommendation tool helps you find destinations with your ideal climate conditions. Use our weather planner to find your perfect destination.
Frequently asked questions about the climate in Stone Mountain
What is the best time to visit Stone Mountain?
April, May and October typically offer the most optimal weather in Stone Mountain. In contrast, January and February tend to have less optimal conditions.
What temperatures can I expect in Stone Mountain?
Daytime highs range from 11°C (52°F) in January to 32°C (90°F) in July. Nighttime lows range from 0°C (32°F) to 21°C (70°F). Temperatures vary considerably through the year.
How much rain does Stone Mountain get?
Annual rainfall is around 1258 mm (50 in). December is the wettest month with 149 mm (5.9 in), while June is the driest with 84 mm (3.3 in).
How sunny is Stone Mountain?
Stone Mountain receives around 2,733 hours of sunshine per year. May is the sunniest month with 288 hours, while January is the cloudiest with just 164 hours. Overall, Stone Mountain enjoys abundant sunshine.
Stone Mountain 3-Day Forecast
Stone Mountain (GA) 3-Day Forecast
Stone Mountain on the map
Stone Mountain is highlighted — select any city to see its climate.
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Where to go in July — average daytime high across popular destinations.
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