Fort Mill (SC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Fort Mill.
Climate overview of Fort Mill
Fort Mill, South Carolina, 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 1099 mm (43 in) of annual rain/snowfall, Fort Mill has a notably wet climate. The wettest month is December. May is the sunniest month, averaging 9.8 hours of sunshine per day.
Fort Mill Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Fort Mill — and find the best time to visit.
Monthly Temperature in Fort Mill
Depending on the time of the year, temperatures range from very warm to chilly in Fort Mill. 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 -1°C (30°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Fort Mill
Fort Mill has a relatively rain/snowy climate with high precipitation levels, averaging 1099 mm (43 in) of rain/snowfall annually. Fort Mill experiences moderate seasonal variation in rainfall, with monthly averages ranging from 118 mm (4.6 in) in December, the wettest month, and 66 mm (2.6 in) in October, the driest month. For more details, please visit our Fort Mill 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 Fort Mill
Fort Mill can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 9.8 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 5.7 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 Fort Mill by Month
The relative humidity is high throughout the year in Fort Mill.
The city experiences its highest humidity in August, reaching 74%. In April, the humidity drops to its lowest level at 59%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Fort Mill
Rainfall during this time ranges from 66 mm (2.6 in) in October to 91 mm (3.6 in) in May. 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 Fort Mill
What is the best time to visit Fort Mill?
April, May, September and October typically offer the most optimal weather in Fort Mill. In contrast, January, February, June, July and December tend to have less optimal conditions.
What temperatures can I expect in Fort Mill?
Daytime highs range from 11°C (52°F) in January to 32°C (90°F) in July. Nighttime lows range from -1°C (30°F) to 21°C (70°F). Temperatures vary considerably through the year.
How much rain does Fort Mill get?
Annual rainfall is around 1099 mm (43 in). December is the wettest month with 118 mm (4.6 in), while October is the driest with 66 mm (2.6 in).
How sunny is Fort Mill?
Fort Mill receives around 2,829 hours of sunshine per year. May is the sunniest month with 293 hours, while December is the cloudiest with just 170 hours. Overall, Fort Mill enjoys abundant sunshine.
Fort Mill 3-Day Forecast
Fort Mill (SC) 3-Day Forecast
Fort Mill on the map
Fort Mill is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.