May Weather in De Smet, United States

Last updated: June 24, 2025

In May, the average temperature in De Smet, United States hovers around 14°C (57°F). Visitors can expect a minimum temperature that can drop as low as -2°C (29°F), while the mercury can rise to a toasty 33°C (91°F). During this time, precipitation averages 87 mm (3.4 in) over about 10 days, contributing to an average humidity of 76%.

May Temperature in De Smet

In May in De Smet, the average temperature is 14°C (57°F), with maximums reaching 33°C (91°F) and minimums plummeting to as low as -2°C (29°F). It's advisable to pack layers to accommodate the wide temperature range while enjoying your travels.

May Weather in De Smet: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in De Smet, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In De Smet, May typically has an average temperature of 14°C (57°F), with highs reaching up to 33°C (91°F) and lows dropping to around -2°C (29°F).

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

May Precipitation in De Smet

In De Smet in May, the precipitation amount is 87 mm (3.4 in) over the course of 10 days.

May Precipitation Trends in De Smet

The chart displays monthly precipitation patterns in De Smet, 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 De Smet, May typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 10 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 De Smet

In De Smet in May humidity is 76%. With an average temperature of 14°C (57°F), this humidity feels like a warm blanket wrapped around you, creating a heavy atmosphere that can make outdoor activities feel sluggish and stifling, urging travelers to seek shade and refreshment more frequently.

May Average Humidity in De Smet

This chart illustrates the average monthly humidity levels in De Smet, 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 De Smet is approximately 76%, 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 De Smet

In De Smet 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 De Smet.

Maximum UV Index Levels in De Smet for May

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

Data source: De Smet 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 De Smet Compares to Other Months

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

This table compares monthly weather conditions in De Smet, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (16°F)	20 mm (0.8 inches)	81%	moderate
February Weather	-9°C (16°F)	18 mm (0.7 inches)	85%	moderate
March Weather	0°C (32°F)	55 mm (2.2 inches)	76%	moderate
April Weather	5°C (42°F)	78 mm (3.1 inches)	79%	very high
May Weather	14°C (57°F)	87 mm (3.4 inches)	76%	very high
June Weather	21°C (71°F)	78 mm (3.1 inches)	81%	very high
July Weather	23°C (74°F)	91 mm (3.6 inches)	82%	very high
August Weather	21°C (71°F)	97 mm (3.8 inches)	82%	very high
September Weather	17°C (64°F)	95 mm (3.7 inches)	77%	very high
October Weather	8°C (46°F)	79 mm (3.1 inches)	76%	moderate
November Weather	1°C (34°F)	22 mm (0.9 inches)	84%	moderate
December Weather	-4°C (25°F)	30 mm (1.2 inches)	81%	low