May Weather in Marion, United States

Last updated: June 24, 2025

In May, the average temperature in Marion, United States is a pleasant 23°C (74°F). However, be prepared for a range of conditions, as minimums can drop to 7°C (45°F) while maximums can soar to 35°C (96°F). With an average precipitation of 114 mm (4.5 in) spread across 11 days, and an average humidity level of 82%, it's advisable to pack accordingly and stay hydrated during your visit!

May Temperature in Marion

In May in Marion, the average temperature is 23°C (74°F). Maximum temperatures can reach up to 35°C (96°F), while minimums can drop as low as 7°C (45°F). This makes it an ideal time to explore Marion, with warm days perfect for sightseeing and cooler evenings perfect for a cozy retreat.

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

The chart illustrates May temperature patterns in Marion, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marion, May typically has an average temperature of 23°C (74°F), with highs reaching up to 35°C (96°F) and lows dropping to around 7°C (45°F).

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

May Precipitation in Marion

In Marion in May, the total precipitation amount is 114 mm (4.5 in) spread over 11 days.

May Precipitation Trends in Marion

The chart displays monthly precipitation patterns in Marion, 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 Marion, May typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Marion

In Marion in May, humidity is 82%. With an average temperature of 23°C (74°F), this humidity feels like you are walking through a warm, damp blanket, making travel a bit uncomfortable and sticky as you navigate the air thick with moisture.

May Average Humidity in Marion

This chart illustrates the average monthly humidity levels in Marion, 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 Marion is approximately 82%, 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 Marion

In Marion 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 Marion.

Maximum UV Index Levels in Marion for May

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

Data source: Marion 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 Marion Compares to Other Months

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

This table compares monthly weather conditions in Marion, 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 (48°F)	104 mm (4.1 inches)	85%	moderate
February Weather	12°C (54°F)	148 mm (5.8 inches)	84%	high
March Weather	16°C (60°F)	117 mm (4.6 inches)	82%	very high
April Weather	18°C (65°F)	133 mm (5.3 inches)	82%	extreme
May Weather	23°C (74°F)	114 mm (4.5 inches)	82%	extreme
June Weather	26°C (79°F)	167 mm (6.6 inches)	79%	extreme
July Weather	27°C (81°F)	117 mm (4.6 inches)	82%	extreme
August Weather	27°C (81°F)	128 mm (5.1 inches)	77%	extreme
September Weather	25°C (78°F)	98 mm (3.8 inches)	74%	very high
October Weather	20°C (69°F)	107 mm (4.2 inches)	73%	very high
November Weather	13°C (55°F)	68 mm (2.7 inches)	85%	high
December Weather	11°C (52°F)	123 mm (4.8 inches)	88%	moderate