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May Weather in Marion, United States

Last updated: June 24, 2025

In Marion, United States, the average temperature in May hovers around 23°C (74°F), with a minimum dipping to 7°C (46°F) and soaring up to a maximum of 36°C (97°F). Expect about 141 mm (5.6 in) of precipitation spread over 13 days, contributing to an average humidity level of 83%. Whether you're soaking in the warmth or preparing for the rain, Marion offers a dynamic climate this month!

May Temperature in Marion

In May in Marion, the average temperature is 23°C (74°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 7°C (46°F). When planning your trip, be prepared for a wide range of temperatures and pack accordingly!

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 36°C (97°F) and lows dropping to around 7°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec475160647480838279675551
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 141 mm (5.6 in) spread over 13 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 141 mm (5.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec120178171188141135991017214675124
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 83%. With an average temperature of 23°C (74°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier, and leaving you constantly in search of a cool breeze or shade 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 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%80%82%83%80%80%75%73%76%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 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.
JanFebMarAprMayJunJulAugSepOctNovDec47810111211119864
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 Weather8°C (48°F)119 mm (4.7 inches)84%moderate
February Weather10°C (51°F)178 mm (7.0 inches)83%high
March Weather16°C (61°F)171 mm (6.7 inches)80%very high
April Weather18°C (65°F)188 mm (7.4 inches)82%very high
May Weather23°C (74°F)141 mm (5.6 inches)83%extreme
June Weather27°C (81°F)135 mm (5.3 inches)80%extreme
July Weather28°C (83°F)99 mm (3.9 inches)80%extreme
August Weather28°C (83°F)101 mm (4.0 inches)75%extreme
September Weather26°C (79°F)72 mm (2.8 inches)73%very high
October Weather20°C (68°F)146 mm (5.8 inches)76%very high
November Weather13°C (55°F)75 mm (3.0 inches)84%high
December Weather11°C (52°F)124 mm (4.9 inches)88%moderate

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