May Weather in Vermillion, United States

Last updated: June 24, 2025

In Vermillion, United States, the average temperature in May hovers around 16°C (60°F). However, don't be surprised by fluctuations, as it can dip to a chilly 0°C (33°F) or soar up to a sizzling 35°C (95°F). Expect 148 mm (5.8 in) of precipitation over 14 days, accompanied by an average humidity of 74%, creating a uniquely vibrant climate.

May Temperature in Vermillion

In May in Vermillion, the average temperature is 16°C (60°F), with maximums reaching up to 35°C (95°F) and minimums dropping as low as 0°C (33°F). This makes it an ideal time for travelers to enjoy a pleasant mix of warm and cool weather, perfect for exploring and outdoor activities.

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

The chart illustrates May temperature patterns in Vermillion, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vermillion, May typically has an average temperature of 16°C (60°F), with highs reaching up to 35°C (95°F) and lows dropping to around 0°C (33°F).

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

May Precipitation in Vermillion

In Vermillion in May, the total precipitation amount is 148 mm (5.8 in) over the course of 14 days.

May Precipitation Trends in Vermillion

The chart displays monthly precipitation patterns in Vermillion, 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 Vermillion, May typically receives around 148 mm (5.8 inches) of precipitation spread over approximately 14 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 Vermillion

In Vermillion in May humidity is 74%. With an average temperature of 16°C (60°F), this humidity feels like a damp blanket enveloping you, making traveling a bit uncomfortable as you navigate the sticky air and potentially limiting your energy for exploring the sights.

May Average Humidity in Vermillion

This chart illustrates the average monthly humidity levels in Vermillion, 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 Vermillion 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 Vermillion

In Vermillion in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Vermillion.

Maximum UV Index Levels in Vermillion for May

The chart shows the monthly maximum UV Index (UVI) for Vermillion 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 Vermillion typically reaches 9, which falls under the very high exposure category.

Data source: Vermillion 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 Vermillion Compares to Other Months

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

This table compares monthly weather conditions in Vermillion, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	25 mm (1.0 inches)	80%	moderate
February Weather	-5°C (22°F)	26 mm (1.0 inches)	84%	moderate
March Weather	3°C (38°F)	79 mm (3.1 inches)	75%	high
April Weather	8°C (47°F)	85 mm (3.3 inches)	79%	very high
May Weather	16°C (60°F)	148 mm (5.8 inches)	74%	very high
June Weather	23°C (74°F)	94 mm (3.7 inches)	81%	extreme
July Weather	25°C (77°F)	82 mm (3.2 inches)	82%	very high
August Weather	23°C (73°F)	93 mm (3.7 inches)	80%	very high
September Weather	20°C (68°F)	85 mm (3.3 inches)	75%	very high
October Weather	10°C (50°F)	76 mm (3.0 inches)	77%	moderate
November Weather	3°C (37°F)	23 mm (0.9 inches)	85%	moderate
December Weather	-2°C (28°F)	42 mm (1.6 inches)	83%	low