May Weather in Cascade, United States

Last updated: June 24, 2025

In Cascade, United States, the average temperature in May is a pleasant 16°C (61°F). However, be prepared for a range, as temperatures can dip to a chilly -1°C (30°F) or soar to a warm 33°C (92°F). During this month, expect an average precipitation of 155 mm (6.1 in) over 14 days, accompanied by an average humidity of 75%.

May Temperature in Cascade

In May in Cascade, the average temperature is 16°C (61°F). Maximum temperatures can reach 33°C (92°F), while the minimum can drop as low as -1°C (30°F). Travelers should be prepared for a wide range of temperatures, so packing layered clothing is advisable.

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

The chart illustrates May temperature patterns in Cascade, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cascade, May typically has an average temperature of 16°C (61°F), with highs reaching up to 33°C (92°F) and lows dropping to around -1°C (30°F).

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

May Precipitation in Cascade

In Cascade in May, the precipitation amount is 155 mm (6.1 in) over the course of 14 days.

May Precipitation Trends in Cascade

The chart displays monthly precipitation patterns in Cascade, 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 Cascade, May typically receives around 155 mm (6.1 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 Cascade

In Cascade in May humidity is 75%. With an average temperature of 16°C (61°F), this humidity feels like a warm, muggy embrace, making traveling somewhat uncomfortable as you may find yourself constantly adjusting your clothing and seeking shade to escape the sticky air.

May Average Humidity in Cascade

This chart illustrates the average monthly humidity levels in Cascade, 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 Cascade is approximately 75%, 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 Cascade

In Cascade 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 Cascade.

Maximum UV Index Levels in Cascade for May

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

Data source: Cascade 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 Cascade Compares to Other Months

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

This table compares monthly weather conditions in Cascade, 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)	49 mm (1.9 inches)	84%	moderate
February Weather	-5°C (23°F)	60 mm (2.4 inches)	85%	moderate
March Weather	3°C (37°F)	67 mm (2.6 inches)	84%	moderate
April Weather	8°C (47°F)	84 mm (3.3 inches)	83%	very high
May Weather	16°C (61°F)	155 mm (6.1 inches)	75%	very high
June Weather	22°C (72°F)	124 mm (4.9 inches)	79%	extreme
July Weather	24°C (75°F)	85 mm (3.3 inches)	75%	very high
August Weather	22°C (72°F)	89 mm (3.5 inches)	69%	very high
September Weather	19°C (66°F)	123 mm (4.8 inches)	74%	very high
October Weather	11°C (52°F)	126 mm (5.0 inches)	79%	moderate
November Weather	3°C (37°F)	49 mm (1.9 inches)	88%	moderate
December Weather	-1°C (30°F)	44 mm (1.7 inches)	82%	moderate