May Weather in Greenville, United States

Last updated: June 24, 2025

In May, the average temperature in Greenville, United States hovers around 14°C (58°F), providing a pleasant climate for outdoor activities. Expect to experience a wide temperature range, with minimums of 1°C (33°F) and maximums reaching up to 33°C (92°F). During this month, precipitation averages 86 mm (3.4 in) over 12 days, contributing to the region's lush environment. Additionally, the average humidity is around 72%, ensuring a refreshing atmosphere throughout the day.

May Temperature in Greenville

In May in Greenville, the average temperature is 14°C (58°F). Maximums can reach 33°C (92°F), while minimums can drop as low as 1°C (33°F). Therefore, travelers should pack layers to accommodate the wide range of temperatures.

May Weather in Greenville: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Greenville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Greenville, May typically has an average temperature of 14°C (58°F), with highs reaching up to 33°C (92°F) and lows dropping to around 1°C (33°F).

Data source: Temperature data for Greenville generated using information from the Copernicus Climate Change Service.

May Precipitation in Greenville

In Greenville in May, the precipitation amount is 86 mm (3.4 in) over a span of 12 days.

May Precipitation Trends in Greenville

The chart displays monthly precipitation patterns in Greenville, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Greenville, May typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Greenville

In Greenville in May, humidity is 72%. With an average temperature of 14°C (58°F), this humidity feels like a damp blanket wrapping around you, making walking and exploring slightly uncomfortable and requiring frequent breaks for hydration.

May Average Humidity in Greenville

This chart illustrates the average monthly humidity levels in Greenville, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Greenville is approximately 72%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Greenville

In Greenville in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Greenville.

Maximum UV Index Levels in Greenville for May

The chart shows the monthly maximum UV Index (UVI) for Greenville in May, 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 May, the maximum UV index in Greenville typically reaches 9, which falls under the very high exposure category.

Data source: Greenville May 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 May Weather in Greenville Compares to Other Months

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

This table compares monthly weather conditions in Greenville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	75 mm (2.9 inches)	86%	moderate
February Weather	-1°C (30°F)	88 mm (3.5 inches)	84%	moderate
March Weather	2°C (35°F)	83 mm (3.3 inches)	82%	moderate
April Weather	8°C (47°F)	132 mm (5.2 inches)	80%	very high
May Weather	14°C (58°F)	86 mm (3.4 inches)	72%	very high
June Weather	20°C (68°F)	89 mm (3.5 inches)	72%	very high
July Weather	23°C (73°F)	150 mm (5.9 inches)	67%	very high
August Weather	22°C (72°F)	97 mm (3.8 inches)	66%	very high
September Weather	18°C (65°F)	85 mm (3.3 inches)	71%	high
October Weather	12°C (54°F)	134 mm (5.3 inches)	78%	high
November Weather	4°C (40°F)	103 mm (4.0 inches)	84%	moderate
December Weather	-1°C (31°F)	124 mm (4.9 inches)	81%	low