Cumming (GA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Cumming.
Climate overview of Cumming
The climate in Cumming, Georgia, United States of America, is marked by large temperature swings across the seasons, ranging from 31°C (88°F) in August to 10°C (50°F) in January.
With around 1344 mm (53 in) of annual rain/snowfall, Cumming 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.
Cumming Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Cumming — and find the best time to visit.
Monthly Temperature in Cumming
In Cumming, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a very warm 31°C (88°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 10°C (50°F).
At night, temperatures range from around 20°C (68°F) in August to -1°C (30°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Cumming
Cumming experiences significant rain/snowfall throughout the year, averaging 1344 mm (53 in) of precipitation annually. Cumming experiences moderate seasonal variation in rainfall, with monthly averages ranging from 155 mm (6.1 in) in December, the wettest month, and 90 mm (3.5 in) in September, the driest month. For more details, please visit our Cumming 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 Cumming
Cumming 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 Cumming by Month
The relative humidity is high throughout the year in Cumming.
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 Cumming
Frequently asked questions about the climate in Cumming
What is the best time to visit Cumming?
September typically offers the most optimal weather in Cumming. In contrast, January, February and December tend to have less optimal conditions.
What temperatures can I expect in Cumming?
Daytime highs range from 10°C (50°F) in January to 31°C (88°F) in August. Nighttime lows range from -1°C (30°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does Cumming get?
Annual rainfall is around 1344 mm (53 in). December is the wettest month with 155 mm (6.1 in), while September is the driest with 90 mm (3.5 in).
How sunny is Cumming?
Cumming 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, Cumming enjoys abundant sunshine.
Cumming 3-Day Forecast
Cumming (GA) 3-Day Forecast
Cumming on the map
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