May Weather in Ames, United States

Last updated: June 24, 2025

In May, the average temperature in Ames, United States hovers around 17°C (62°F), but be prepared for a range between 0°C (32°F) and 36°C (96°F). Expect 158 mm (6.2 in) of precipitation spread over 15 days, contributing to an average humidity level of 77%. Pack accordingly for a mix of cozy and humid conditions!

May Temperature in Ames

In May in Ames, the average temperature is 17°C (62°F). Maximums can reach up to 36°C (96°F), while minimums can drop to as low as 0°C (32°F). Be prepared for a wide range of temperatures to make the most of your visit!

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

The chart illustrates May temperature patterns in Ames, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ames, May typically has an average temperature of 17°C (62°F), with highs reaching up to 36°C (96°F) and lows dropping to around 0°C (32°F).

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

May Precipitation in Ames

In Ames in May, the precipitation amount is 158 mm (6.2 in) over the course of 15 days.

May Precipitation Trends in Ames

The chart displays monthly precipitation patterns in Ames, 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 Ames, May typically receives around 158 mm (6.2 inches) of precipitation spread over approximately 15 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 Ames

In Ames in May humidity is 77%. With an average temperature of 17°C (62°F), this humidity feels like a warm embrace, creating a lush, almost tropical atmosphere that can be quite stifling for traveling, making it essential to stay hydrated and take frequent breaks in the shade.

May Average Humidity in Ames

This chart illustrates the average monthly humidity levels in Ames, 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 Ames is approximately 77%, 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 Ames

In Ames 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 Ames.

Maximum UV Index Levels in Ames for May

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

Data source: Ames 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 Ames Compares to Other Months

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

This table compares monthly weather conditions in Ames, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	36 mm (1.4 inches)	78%	moderate
February Weather	-6°C (22°F)	42 mm (1.7 inches)	80%	moderate
March Weather	3°C (39°F)	77 mm (3.0 inches)	77%	high
April Weather	9°C (49°F)	79 mm (3.1 inches)	77%	very high
May Weather	17°C (62°F)	158 mm (6.2 inches)	77%	very high
June Weather	23°C (74°F)	102 mm (4.0 inches)	81%	extreme
July Weather	25°C (77°F)	78 mm (3.1 inches)	81%	very high
August Weather	23°C (73°F)	72 mm (2.8 inches)	77%	very high
September Weather	20°C (68°F)	121 mm (4.8 inches)	73%	very high
October Weather	11°C (52°F)	130 mm (5.1 inches)	75%	high
November Weather	3°C (38°F)	41 mm (1.6 inches)	85%	moderate
December Weather	-1°C (30°F)	36 mm (1.4 inches)	83%	moderate