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May Weather in Cleveland, United States

Last updated: June 24, 2025

In Cleveland, United States, the average temperature in May hovers around 21°C (70°F), with a minimum of 3°C (38°F) and a peak of 35°C (96°F). You'll likely experience some rain, as 123 mm (4.9 in) falls over approximately 13 days. Furthermore, expect a high level of humidity at 83%, making the air feel quite tropical.

May Temperature in Cleveland

In May in Cleveland, the average temperature is 21°C (70°F). Maximums can reach 35°C (96°F), and minimums can be as low as 3°C (38°F). This diverse temperature range makes Cleveland an ideal destination for travelers looking to enjoy both warm and cooler activities.

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 21°C (70°F), with highs reaching up to 35°C (96°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec424752616976807873645045
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 123 mm (4.9 in) over the course of 13 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 123 mm (4.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec8812089115123899010913311289117
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 83%. With an average temperature of 21°C (70°F), this humidity feels like you’re enveloped in a warm, tropical embrace, making it essential to stay hydrated and take breaks during your travels.

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 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%82%83%82%80%74%75%79%87%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 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810101110109853
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 Weather5°C (42°F)88 mm (3.5 inches)86%moderate
February Weather8°C (47°F)120 mm (4.7 inches)85%high
March Weather11°C (52°F)89 mm (3.5 inches)84%very high
April Weather16°C (61°F)115 mm (4.5 inches)82%very high
May Weather21°C (70°F)123 mm (4.9 inches)83%very high
June Weather24°C (76°F)89 mm (3.5 inches)82%extreme
July Weather27°C (80°F)90 mm (3.5 inches)80%very high
August Weather25°C (78°F)109 mm (4.3 inches)74%very high
September Weather23°C (73°F)133 mm (5.2 inches)75%very high
October Weather18°C (64°F)112 mm (4.4 inches)79%very high
November Weather10°C (50°F)89 mm (3.5 inches)87%moderate
December Weather7°C (45°F)117 mm (4.6 inches)87%moderate

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