May Weather in Piedmont, United States

Last updated: June 24, 2025

In May, the average temperature in Piedmont, United States is a pleasant 21°C (70°F), with lows dipping to 5°C (41°F) and highs reaching up to 34°C (94°F). The region experiences an average precipitation of 137 mm (5.4 in) over 11 days, contributing to a cozy average humidity of 85%. Whether you’re basking in the warmth or enjoying the gentle rains, May offers a delightful climate for exploration!

May Temperature in Piedmont

In May in Piedmont, the average temperature is 21°C (70°F). Maximums can reach 34°C (94°F), while minimums can drop as low as 5°C (41°F). This range makes it an ideal time for travelers to enjoy a variety of outdoor activities, while also being prepared for potential temperature fluctuations.

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

The chart illustrates May temperature patterns in Piedmont, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Piedmont, May typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (94°F) and lows dropping to around 5°C (41°F).

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

May Precipitation in Piedmont

In Piedmont in May, the total precipitation amount reaches 137 mm (5.4 in) over a span of 11 days.

May Precipitation Trends in Piedmont

The chart displays monthly precipitation patterns in Piedmont, 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 Piedmont, May typically receives around 137 mm (5.4 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 Piedmont

In Piedmont in May, humidity is 85%. With an average temperature of 21°C (70°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel slightly stifling and requiring frequent breaks to refresh in the shade or near water.

May Average Humidity in Piedmont

This chart illustrates the average monthly humidity levels in Piedmont, 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 Piedmont is approximately 85%, 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 Piedmont

In Piedmont in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Piedmont.

Maximum UV Index Levels in Piedmont for May

The chart shows the monthly maximum UV Index (UVI) for Piedmont 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 Piedmont typically reaches 11, which falls under the extreme exposure category.

Data source: Piedmont 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 Piedmont Compares to Other Months

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

This table compares monthly weather conditions in Piedmont, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (44°F)	99 mm (3.9 inches)	86%	moderate
February Weather	10°C (50°F)	144 mm (5.7 inches)	86%	high
March Weather	12°C (54°F)	109 mm (4.3 inches)	86%	very high
April Weather	16°C (62°F)	125 mm (4.9 inches)	82%	very high
May Weather	21°C (70°F)	137 mm (5.4 inches)	85%	extreme
June Weather	24°C (76°F)	87 mm (3.4 inches)	85%	extreme
July Weather	26°C (80°F)	93 mm (3.7 inches)	83%	extreme
August Weather	26°C (79°F)	121 mm (4.8 inches)	76%	very high
September Weather	23°C (74°F)	132 mm (5.2 inches)	76%	very high
October Weather	18°C (65°F)	129 mm (5.1 inches)	80%	very high
November Weather	11°C (51°F)	95 mm (3.7 inches)	88%	high
December Weather	8°C (47°F)	130 mm (5.1 inches)	88%	moderate