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May Weather in Williamston, United States

Last updated: June 24, 2025

In May, the average temperature in Williamston, United States is a pleasant 21°C (70°F). However, temperatures can vary significantly, with lows dipping to 4°C (40°F) and highs soaring up to 36°C (97°F). Travelers should also prepare for an average precipitation of 116 mm (4.6 in) over 11 days, accompanied by a notably high humidity level of 81%.

May Temperature in Williamston

In May in Williamston, the average temperature is 21°C (70°F), with maximums reaching 36°C (97°F) and minimums dropping to as low as 4°C (40°F). This diverse range of temperatures makes it a perfect time to pack layers and enjoy various outdoor activities.

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

The chart illustrates May temperature patterns in Williamston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Williamston, May typically has an average temperature of 21°C (70°F), with highs reaching up to 36°C (97°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec445053627076807975665348
Data source: Temperature data for Williamston 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 Williamston

In Williamston in May, the precipitation amount is 116 mm (4.6 in) over the course of 11 days.

May Precipitation Trends in Williamston

The chart displays monthly precipitation patterns in Williamston, 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 Williamston, May typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec9490671001161511521811297694102
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Williamston

In Williamston 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 Williamston

This chart illustrates the average monthly humidity levels in Williamston, 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 Williamston is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%81%80%80%81%82%83%83%80%80%83%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Williamston

In Williamston 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 Williamston.

Maximum UV Index Levels in Williamston for May

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

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

This table compares monthly weather conditions in Williamston, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)94 mm (3.7 inches)84%moderate
February Weather10°C (50°F)89 mm (3.5 inches)81%high
March Weather12°C (53°F)67 mm (2.6 inches)80%very high
April Weather17°C (62°F)100 mm (3.9 inches)80%very high
May Weather21°C (70°F)116 mm (4.6 inches)81%extreme
June Weather25°C (76°F)151 mm (6.0 inches)82%extreme
July Weather27°C (80°F)152 mm (6.0 inches)83%extreme
August Weather26°C (79°F)181 mm (7.1 inches)82%very high
September Weather24°C (75°F)129 mm (5.1 inches)80%very high
October Weather19°C (67°F)76 mm (3.0 inches)79%very high
November Weather12°C (53°F)94 mm (3.7 inches)83%moderate
December Weather9°C (49°F)102 mm (4.0 inches)84%moderate

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