May Weather in Greenville, United States

Last updated: June 24, 2025

In Greenville, United States, the average temperature in May hovers around 10°C (51°F). Expect a minimum drop to -2°C (28°F) and occasional peaks reaching up to 30°C (86°F). With an average precipitation of 98 mm (3.9 in) spread over 11 days, the weather can be quite variable, complemented by a generally high average humidity of 76%.

May Temperature in Greenville

In May in Greenville, the average temperature is 10°C (51°F), with a maximum that can reach 30°C (86°F) and a minimum that can be as low as -2°C (28°F). This variation makes it essential for travelers to pack accordingly, preparing for both warm and chilly conditions.

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 10°C (51°F), with highs reaching up to 30°C (86°F) and lows dropping to around -2°C (28°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 total precipitation amount is 98 mm (3.9 in) over the course of 11 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 98 mm (3.9 inches) of precipitation spread over approximately 11 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 76%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that can make outdoor excursions feel much colder, requiring extra layers for comfort as you explore the area.

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 76%, 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	-9°C (16°F)	86 mm (3.4 inches)	88%	low
February Weather	-8°C (19°F)	82 mm (3.2 inches)	88%	moderate
March Weather	-4°C (26°F)	75 mm (3.0 inches)	85%	moderate
April Weather	3°C (38°F)	115 mm (4.5 inches)	81%	very high
May Weather	10°C (51°F)	98 mm (3.9 inches)	76%	very high
June Weather	16°C (61°F)	86 mm (3.4 inches)	74%	very high
July Weather	19°C (67°F)	103 mm (4.0 inches)	74%	very high
August Weather	19°C (66°F)	88 mm (3.5 inches)	74%	very high
September Weather	14°C (58°F)	80 mm (3.2 inches)	77%	high
October Weather	8°C (47°F)	124 mm (4.9 inches)	82%	moderate
November Weather	0°C (33°F)	106 mm (4.2 inches)	85%	moderate
December Weather	-6°C (21°F)	101 mm (4.0 inches)	84%	low