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April Weather in Fort Mill, United States

Last updated: June 24, 2025

In Fort Mill, United States, the average temperature in April hovers around 17°C (63°F). Be prepared for a temperature range that can dip to a chilly -2°C (29°F) or soar up to a warm 30°C (87°F). During this month, expect about 104 mm (4.1 in) of precipitation spread across 9 days, resulting in an average humidity of 82%.

April Temperature in Fort Mill

In April in Fort Mill, the average temperature is 17°C (63°F). Maximum temperatures can reach 30°C (87°F), while minimums can drop as low as -2°C (29°F). Be prepared for a wide range of weather conditions when traveling to Fort Mill during this time.

April Weather in Fort Mill: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Fort Mill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fort Mill, April typically has an average temperature of 17°C (63°F), with highs reaching up to 30°C (87°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec445054637177817975655247
Data source: Temperature data for Fort Mill generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Fort Mill

In Fort Mill in April, the precipitation amount is 104 mm (4.1 in) over the course of 9 days.

April Precipitation Trends in Fort Mill

The chart displays monthly precipitation patterns in Fort Mill, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Fort Mill, April typically receives around 104 mm (4.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec9312089104106791011141288790124
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Fort Mill

In Fort Mill in April, humidity is 82%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket wrapping around you—comfortable yet heavy, making outdoor activities more taxing and requiring frequent breaks for hydration.

April Average Humidity in Fort Mill

This chart illustrates the average monthly humidity levels in Fort Mill, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Fort Mill is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%82%83%82%80%74%75%79%87%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Fort Mill

In Fort Mill in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Fort Mill.

Maximum UV Index Levels in Fort Mill for April

The chart shows the monthly maximum UV Index (UVI) for Fort Mill in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Fort Mill typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810101111109853
Data source: Fort Mill April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How April Weather in Fort Mill Compares to Other Months

Weather in Fort Mill varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Fort Mill, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Fort Mill, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)93 mm (3.7 inches)86%moderate
February Weather10°C (50°F)120 mm (4.7 inches)85%high
March Weather12°C (55°F)89 mm (3.5 inches)84%very high
April Weather17°C (63°F)104 mm (4.1 inches)82%very high
May Weather22°C (72°F)106 mm (4.2 inches)83%very high
June Weather25°C (77°F)79 mm (3.1 inches)82%extreme
July Weather27°C (81°F)101 mm (4.0 inches)80%extreme
August Weather26°C (79°F)114 mm (4.5 inches)74%very high
September Weather24°C (75°F)128 mm (5.0 inches)75%very high
October Weather19°C (66°F)87 mm (3.4 inches)79%very high
November Weather11°C (52°F)90 mm (3.5 inches)87%moderate
December Weather9°C (48°F)124 mm (4.9 inches)87%moderate

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