May Weather in Williams, United States

Last updated: June 24, 2025

In Williams, United States, the weather in May showcases an inviting average temperature of 22°C (71°F). However, be prepared for temperature fluctuations, with a minimum of 5°C (40°F) and a sweltering maximum of 41°C (105°F). Expect some light rain, as the month sees 22 mm (0.9 in) of precipitation over approximately 3 days. The air carries a touch of warmth, with an average humidity level of 74%.

May Temperature in Williams

In May in Williams, the average temperature is 22°C (71°F). Maximums can reach 41°C (105°F), and minimums can be as low as 5°C (40°F). Travelers should prepare for a wide range of temperatures, ensuring they pack accordingly for both warmth and cooler evenings.

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

The chart illustrates May temperature patterns in Williams, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Williams, May typically has an average temperature of 22°C (71°F), with highs reaching up to 41°C (105°F) and lows dropping to around 5°C (40°F).

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

May Precipitation in Williams

In Williams in May, the precipitation amount is 22 mm (0.9 in) over a span of 3 days.

May Precipitation Trends in Williams

The chart displays monthly precipitation patterns in Williams, 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 Williams, May typically receives around 22 mm (0.9 inches) of precipitation spread over approximately 3 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 Williams

In Williams in May, humidity is 74%. With an average temperature of 22°C (71°F), this humidity feels like a warm embrace, making travel slightly sticky but still enjoyable, as long as you stay hydrated and take breaks in the shade.

May Average Humidity in Williams

This chart illustrates the average monthly humidity levels in Williams, 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 Williams is approximately 74%, 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 Williams

In Williams 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 Williams.

Maximum UV Index Levels in Williams for May

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

Data source: Williams 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 Williams Compares to Other Months

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

This table compares monthly weather conditions in Williams, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	98 mm (3.8 inches)	84%	moderate
February Weather	12°C (53°F)	101 mm (4.0 inches)	84%	moderate
March Weather	13°C (56°F)	68 mm (2.7 inches)	83%	high
April Weather	17°C (63°F)	28 mm (1.1 inches)	81%	very high
May Weather	22°C (71°F)	22 mm (0.9 inches)	74%	extreme
June Weather	27°C (81°F)	4 mm (0.2 inches)	64%	extreme
July Weather	30°C (86°F)	0 mm (0.0 inches)	44%	extreme
August Weather	29°C (84°F)	1 mm (0.0 inches)	36%	very high
September Weather	25°C (77°F)	1 mm (0.0 inches)	44%	very high
October Weather	19°C (67°F)	25 mm (1.0 inches)	65%	high
November Weather	13°C (56°F)	34 mm (1.3 inches)	84%	moderate
December Weather	10°C (50°F)	68 mm (2.7 inches)	83%	moderate