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May Weather in Marion, United States

Last updated: June 24, 2025

In May, the average temperature in Marion, United States hovers around 6°C (43°F). Expect a minimum of -11°C (13°F) and a maximum of 25°C (77°F), showcasing the region's temperature variability. Precipitation accumulates to 66 mm (2.6 in) over approximately 12 days, while humidity sits at a comfortable 62%.

May Temperature in Marion

In May in Marion, the average temperature is 6°C (43°F). Maximum temperatures can reach 25°C (77°F), while minima can drop to as low as -11°C (13°F). This wide temperature range makes it essential to pack layers and be prepared for both warm and chilly conditions when traveling.

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 6°C (43°F), with highs reaching up to 25°C (77°F) and lows dropping to around -11°C (13°F).
JanFebMarAprMayJunJulAugSepOctNovDec212331344357656354382920
Data source: Temperature data for Marion generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Marion

In Marion in May, the precipitation amount is 66 mm (2.6 in) over the course of 12 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 66 mm (2.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec728682626630364343535668
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Marion

In Marion in May, humidity is 62%. With an average temperature of 6°C (43°F), this humidity feels like a chilly dampness that can make even a short stroll feel much colder, often necessitating a heavier jacket to stay comfortable while exploring.

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 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%92%84%75%62%56%44%37%46%67%84%88%
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 is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, 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 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468111212121110753
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.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)72 mm (2.8 inches)91%moderate
February Weather-5°C (23°F)86 mm (3.4 inches)92%high
March Weather0°C (32°F)82 mm (3.2 inches)84%very high
April Weather1°C (35°F)62 mm (2.5 inches)74%extreme
May Weather6°C (43°F)66 mm (2.6 inches)62%extreme
June Weather14°C (57°F)30 mm (1.2 inches)56%extreme
July Weather18°C (65°F)36 mm (1.4 inches)44%extreme
August Weather17°C (63°F)43 mm (1.7 inches)37%extreme
September Weather12°C (54°F)43 mm (1.7 inches)46%very high
October Weather3°C (38°F)53 mm (2.1 inches)67%high
November Weather-2°C (29°F)56 mm (2.2 inches)84%moderate
December Weather-7°C (20°F)68 mm (2.7 inches)88%moderate

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