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May Weather in Cleveland, United States

Last updated: June 24, 2025

In May, the average temperature in Cleveland, United States hovers around 24°C (76°F). However, be prepared for a range, as temperatures can dip to a cool 9°C (48°F) and soar to a sweltering 34°C (94°F). During this month, you can expect approximately 182 mm (7.2 in) of rain over 14 days, contributing to an average humidity of 81%. Stay hydrated and enjoy the varying weather!

May Temperature in Cleveland

In May in Cleveland, the average temperature is 24°C (76°F). Maximums can reach 34°C (94°F) and minimums can be as low as 9°C (48°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities while being prepared for both warm and cooler conditions.

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

The chart illustrates May temperature patterns in Cleveland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cleveland, May typically has an average temperature of 24°C (76°F), with highs reaching up to 34°C (94°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec535764687681838379716157
Data source: Temperature data for Cleveland 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 Cleveland

In Cleveland in May, the precipitation amount is 182 mm (7.2 in) over a span of 14 days.

May Precipitation Trends in Cleveland

The chart displays monthly precipitation patterns in Cleveland, 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 Cleveland, May typically receives around 182 mm (7.2 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec9910110610718215411619420111775112
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Cleveland

In Cleveland in May, humidity is 81%. With an average temperature of 24°C (76°F), this humidity feels like a warm, muggy embrace that can make outdoor activities feel exhausting, leaving travelers in need of frequent breaks and plenty of hydration.

May Average Humidity in Cleveland

This chart illustrates the average monthly humidity levels in Cleveland, 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 Cleveland is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%80%78%79%81%77%71%67%69%73%82%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Cleveland

In Cleveland 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 Cleveland.

Maximum UV Index Levels in Cleveland for May

The chart shows the monthly maximum UV Index (UVI) for Cleveland 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 Cleveland typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589101111121110865
Data source: Cleveland 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 Cleveland Compares to Other Months

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

This table compares monthly weather conditions in Cleveland, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (53°F)99 mm (3.9 inches)79%moderate
February Weather14°C (57°F)101 mm (4.0 inches)80%very high
March Weather18°C (65°F)106 mm (4.2 inches)78%very high
April Weather20°C (69°F)107 mm (4.2 inches)79%very high
May Weather24°C (76°F)182 mm (7.2 inches)81%extreme
June Weather27°C (81°F)154 mm (6.1 inches)77%extreme
July Weather28°C (83°F)116 mm (4.6 inches)71%extreme
August Weather28°C (83°F)194 mm (7.6 inches)67%extreme
September Weather26°C (80°F)201 mm (7.9 inches)69%very high
October Weather22°C (71°F)117 mm (4.6 inches)73%very high
November Weather16°C (61°F)75 mm (3.0 inches)82%high
December Weather14°C (57°F)111 mm (4.4 inches)87%moderate

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