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May Weather in Piedmont, United States

Last updated: June 24, 2025

In Piedmont, United States, the average temperature in May hovers around 19°C (67°F), with extremes ranging from a chilly 2°C (37°F) to a warm 32°C (90°F). Expect 177 mm (7.0 in) of precipitation over 13 days, coupled with an average humidity of 83%, making this month a blend of warmth and moisture. Stay prepared for the varying weather!

May Temperature in Piedmont

In May in Piedmont, the average temperature is 19°C (67°F). Maximums can reach 32°C (90°F), and minimums can be as low as 2°C (37°F). Be prepared for a wide range of temperatures, making it essential to pack both warm and cool clothing for your trip.

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 19°C (67°F), with highs reaching up to 32°C (90°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec353849566775797672594541
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 precipitation amount is 177 mm (7.0 in) spread over 13 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 177 mm (7.0 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec8711015115817787100106681277677
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 19°C (67°F), this humidity feels like a warm, tropical blanket wrapping around you, making traveling feel a bit sluggish and sticky, yet still inviting as long as you stay hydrated and take breaks in the shade.

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.
JanFebMarAprMayJunJulAugSepOctNovDec83%81%80%80%83%83%76%69%68%72%83%87%
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 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 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
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 Weather2°C (35°F)87 mm (3.4 inches)83%moderate
February Weather4°C (39°F)110 mm (4.3 inches)81%high
March Weather9°C (49°F)151 mm (6.0 inches)80%high
April Weather13°C (56°F)158 mm (6.2 inches)80%very high
May Weather19°C (67°F)177 mm (7.0 inches)83%very high
June Weather24°C (76°F)87 mm (3.4 inches)83%extreme
July Weather26°C (80°F)100 mm (3.9 inches)76%extreme
August Weather24°C (76°F)106 mm (4.2 inches)69%very high
September Weather22°C (73°F)68 mm (2.7 inches)68%very high
October Weather15°C (60°F)127 mm (5.0 inches)72%high
November Weather7°C (46°F)76 mm (3.0 inches)83%moderate
December Weather5°C (41°F)77 mm (3.0 inches)86%moderate

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