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May Weather in Cedar Rapids, United States

Last updated: June 24, 2025

In May, the average temperature in Cedar Rapids, United States is a mild 16°C (62°F). However, temperatures can range from a brisk 0°C (32°F) to a warm 34°C (94°F). Expect 160 mm (6.3 in) of precipitation spread over 15 days, contributing to a cozy average humidity of 78%. Perfect weather for a variety of activities!

May Temperature in Cedar Rapids

In May in Cedar Rapids, the average temperature is 16°C (62°F). Maximum temperatures can reach 34°C (94°F), while minimums can drop as low as 0°C (32°F). This diverse temperature range makes Cedar Rapids an ideal destination for travelers seeking both warm days and cool evenings.

May Weather in Cedar Rapids: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Cedar Rapids, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cedar Rapids, May typically has an average temperature of 16°C (62°F), with highs reaching up to 34°C (94°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec212338486173767267523730
Data source: Temperature data for Cedar Rapids 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 Cedar Rapids

In Cedar Rapids in May, the precipitation amount is 160 mm (6.3 in) over the course of 15 days.

May Precipitation Trends in Cedar Rapids

The chart displays monthly precipitation patterns in Cedar Rapids, 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 Cedar Rapids, May typically receives around 160 mm (6.3 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec4756738116013485771271404844
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Cedar Rapids

In Cedar Rapids in May, humidity is 78%. With an average temperature of 16°C (62°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities enjoyable yet slightly sticky. Travelers may find the weather pleasantly mild, though they'll appreciate having light, breathable clothing on hand to stay comfortable while exploring.

May Average Humidity in Cedar Rapids

This chart illustrates the average monthly humidity levels in Cedar Rapids, 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 Cedar Rapids is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%81%81%82%78%81%79%77%78%79%87%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Cedar Rapids

In Cedar Rapids in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Cedar Rapids.

Maximum UV Index Levels in Cedar Rapids for May

The chart shows the monthly maximum UV Index (UVI) for Cedar Rapids 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 Cedar Rapids typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689111098633
Data source: Cedar Rapids 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 Cedar Rapids Compares to Other Months

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

This table compares monthly weather conditions in Cedar Rapids, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)47 mm (1.9 inches)81%moderate
February Weather-5°C (23°F)56 mm (2.2 inches)81%moderate
March Weather3°C (38°F)73 mm (2.9 inches)81%high
April Weather9°C (48°F)81 mm (3.2 inches)82%very high
May Weather16°C (62°F)160 mm (6.3 inches)78%very high
June Weather23°C (73°F)134 mm (5.3 inches)81%extreme
July Weather24°C (76°F)85 mm (3.3 inches)79%very high
August Weather22°C (73°F)77 mm (3.0 inches)77%very high
September Weather19°C (67°F)127 mm (5.0 inches)78%very high
October Weather11°C (53°F)140 mm (5.5 inches)78%high
November Weather3°C (38°F)47 mm (1.9 inches)87%moderate
December Weather-1°C (30°F)44 mm (1.7 inches)84%moderate

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