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April Weather in Hartsville, United States

Last updated: June 24, 2025

In April, the average temperature in Hartsville, United States hovers around 15°C (59°F). However, be prepared for a temperature range that can dip as low as -1°C (30°F) and soar up to 31°C (89°F). This month also brings approximately 145 mm (5.7 in) of precipitation spread over 11 days, contributing to an average humidity of 82%.

April Temperature in Hartsville

In April in Hartsville, the average temperature is 15°C (59°F), with maximums reaching 31°C (89°F) and minimums dropping as low as -1°C (30°F). This diverse weather makes it crucial for travelers to pack for both warm and chilly conditions.

April Weather in Hartsville: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Hartsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hartsville, April typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (89°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec404452597076807873634845
Data source: Temperature data for Hartsville 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 Hartsville

In Hartsville, in April, the precipitation amount is 145 mm (5.7 in) over a span of 11 days.

April Precipitation Trends in Hartsville

The chart displays monthly precipitation patterns in Hartsville, 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 Hartsville, April typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec10618715714511914912211812014288151
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Hartsville

In Hartsville in April, humidity is 82%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and uncomfortable for travelers.

April Average Humidity in Hartsville

This chart illustrates the average monthly humidity levels in Hartsville, 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 Hartsville is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%82%83%83%80%74%71%78%88%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Hartsville

In Hartsville 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 Hartsville.

Maximum UV Index Levels in Hartsville for April

The chart shows the monthly maximum UV Index (UVI) for Hartsville 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 Hartsville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Hartsville 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 Hartsville Compares to Other Months

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

This table compares monthly weather conditions in Hartsville, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)106 mm (4.2 inches)87%moderate
February Weather7°C (45°F)187 mm (7.4 inches)86%high
March Weather11°C (52°F)157 mm (6.2 inches)86%high
April Weather15°C (59°F)145 mm (5.7 inches)82%very high
May Weather21°C (70°F)119 mm (4.7 inches)82%very high
June Weather24°C (76°F)149 mm (5.9 inches)83%extreme
July Weather27°C (80°F)122 mm (4.8 inches)80%extreme
August Weather25°C (78°F)118 mm (4.7 inches)74%very high
September Weather23°C (74°F)120 mm (4.7 inches)71%very high
October Weather17°C (63°F)141 mm (5.6 inches)78%high
November Weather9°C (48°F)88 mm (3.5 inches)88%moderate
December Weather7°C (45°F)151 mm (6.0 inches)88%moderate

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