May Weather in Piedmont, United States

Last updated: June 24, 2025

In Piedmont, United States, the average temperature in May hovers around 17°C (62°F). Residents can experience a range from a chilly -1°C (30°F) to a warm 30°C (86°F). The month sees 149 mm (5.9 in) of precipitation spread across 16 days, resulting in an average humidity of 83%. Be prepared for both rain and shine!

May Temperature in Piedmont

In May in Piedmont, the average temperature is 17°C (62°F). The maximum can reach 30°C (86°F), while the minimum can dip as low as -1°C (30°F). This wide range of temperatures makes it essential for travelers to pack accordingly to enjoy their visit comfortably.

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 17°C (62°F), with highs reaching up to 30°C (86°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec344045536268727166574339
Data source: Temperature data for Piedmont 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.

May Precipitation in Piedmont

In Piedmont in May, the total precipitation amount is 149 mm (5.9 in) over the course of 16 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 149 mm (5.9 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec97153122130149123811019312477116
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Piedmont

In Piedmont in May, humidity is 83%. With an average temperature of 17°C (62°F), this humidity feels like traveling through a thick blanket of warmth, making every step feel heavy and inviting frequent breaks to cool down and hydrate.

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 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%84%83%83%79%66%68%78%89%86%
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.
JanFebMarAprMayJunJulAugSepOctNovDec36810111111109753
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.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)97 mm (3.8 inches)87%moderate
February Weather4°C (40°F)153 mm (6.0 inches)87%high
March Weather7°C (45°F)122 mm (4.8 inches)86%very high
April Weather11°C (53°F)130 mm (5.1 inches)84%very high
May Weather17°C (62°F)149 mm (5.9 inches)83%extreme
June Weather20°C (68°F)123 mm (4.8 inches)83%extreme
July Weather22°C (73°F)81 mm (3.2 inches)79%extreme
August Weather21°C (71°F)101 mm (4.0 inches)66%very high
September Weather19°C (67°F)93 mm (3.7 inches)68%very high
October Weather14°C (57°F)124 mm (4.9 inches)78%high
November Weather6°C (43°F)77 mm (3.0 inches)89%moderate
December Weather4°C (39°F)116 mm (4.5 inches)86%moderate

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