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May Weather in Siler City, United States

Last updated: June 24, 2025

In Siler City, United States, the average temperature in May hovers around 21°C (70°F), making it a pleasant time to visit. However, temperatures can range from a chilly 3°C (38°F) to a scorching 36°C (96°F). Visitors should be prepared for 117 mm (4.6 in) of precipitation spread across 11 days, contributing to an average humidity of 81%. Embrace the diverse weather while enjoying all that this vibrant location has to offer!

May Temperature in Siler City

In May in Siler City, the average temperature is 21°C (70°F). Maximums can reach 36°C (96°F), while minimums can drop as low as 3°C (38°F). It's a good time to explore outdoor activities, but be prepared for varying weather conditions.

May Weather in Siler City: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Siler City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siler City, May typically has an average temperature of 21°C (70°F), with highs reaching up to 36°C (96°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec434853617076807874655146
Data source: Temperature data for Siler City 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 Siler City

In Siler City in May, the total precipitation amount reaches 117 mm (4.6 in) over the course of 11 days.

May Precipitation Trends in Siler City

The chart displays monthly precipitation patterns in Siler City, 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 Siler City, May typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec91113811001171061061271448480107
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Siler City

In Siler City in May, humidity is 81%. With an average temperature of 21°C (70°F), this humidity feels like a warm, sticky embrace, making outdoor activities slightly uncomfortable and necessitating frequent breaks in the shade or air conditioning for a refreshing escape.

May Average Humidity in Siler City

This chart illustrates the average monthly humidity levels in Siler City, 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 Siler City is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%82%81%80%81%81%81%80%79%80%86%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Siler City

In Siler City 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 Siler City.

Maximum UV Index Levels in Siler City for May

The chart shows the monthly maximum UV Index (UVI) for Siler City 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 Siler City typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109853
Data source: Siler City 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 Siler City Compares to Other Months

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

This table compares monthly weather conditions in Siler City, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)91 mm (3.6 inches)85%moderate
February Weather9°C (49°F)113 mm (4.4 inches)82%high
March Weather11°C (53°F)81 mm (3.2 inches)81%very high
April Weather16°C (62°F)100 mm (3.9 inches)80%very high
May Weather21°C (70°F)117 mm (4.6 inches)81%extreme
June Weather24°C (76°F)106 mm (4.2 inches)81%extreme
July Weather27°C (80°F)106 mm (4.2 inches)81%extreme
August Weather26°C (78°F)127 mm (5.0 inches)80%very high
September Weather23°C (74°F)143 mm (5.6 inches)79%very high
October Weather18°C (65°F)84 mm (3.3 inches)80%very high
November Weather10°C (51°F)80 mm (3.1 inches)85%moderate
December Weather8°C (47°F)107 mm (4.2 inches)86%moderate

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