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May Weather in Oskaloosa, United States

Last updated: June 24, 2025

In Oskaloosa, United States, the average temperature in May hovers around 17°C (63°F), with a minimum dipping to 2°C (35°F) and a maximum soaring up to 36°C (97°F). You can expect around 154 mm (6.1 in) of precipitation spread over 15 days, and the air will likely feel quite humid with an average humidity of 77%.

May Temperature in Oskaloosa

In May in Oskaloosa, the average temperature is 17°C (63°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 2°C (35°F). Travelers should be prepared for a wide range of temperatures, making layered clothing essential for enjoying all that Oskaloosa has to offer.

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

The chart illustrates May temperature patterns in Oskaloosa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oskaloosa, May typically has an average temperature of 17°C (63°F), with highs reaching up to 36°C (97°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec232541506375777469543932
Data source: Temperature data for Oskaloosa 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 Oskaloosa

In Oskaloosa in May, the precipitation amount is 154 mm (6.1 in) over the course of 15 days.

May Precipitation Trends in Oskaloosa

The chart displays monthly precipitation patterns in Oskaloosa, 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 Oskaloosa, May typically receives around 154 mm (6.1 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec4649877215513076691221285139
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Oskaloosa

In Oskaloosa in May, humidity is 77%. With an average temperature of 17°C (63°F), this humidity feels like a cozy blanket wrapped around you, creating a muggy atmosphere that can be a bit uncomfortable for traveling, making you want to seek shade and hydration as you explore.

May Average Humidity in Oskaloosa

This chart illustrates the average monthly humidity levels in Oskaloosa, 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 Oskaloosa is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%80%77%78%77%81%81%77%73%75%85%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Oskaloosa

In Oskaloosa 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 Oskaloosa.

Maximum UV Index Levels in Oskaloosa for May

The chart shows the monthly maximum UV Index (UVI) for Oskaloosa 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 Oskaloosa typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689111198643
Data source: Oskaloosa 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 Oskaloosa Compares to Other Months

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

This table compares monthly weather conditions in Oskaloosa, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)46 mm (1.8 inches)78%moderate
February Weather-4°C (25°F)49 mm (1.9 inches)80%moderate
March Weather5°C (41°F)87 mm (3.4 inches)77%high
April Weather10°C (50°F)72 mm (2.8 inches)77%very high
May Weather17°C (63°F)154 mm (6.1 inches)77%very high
June Weather24°C (75°F)130 mm (5.1 inches)81%extreme
July Weather25°C (78°F)76 mm (3.0 inches)81%extreme
August Weather23°C (75°F)69 mm (2.7 inches)77%very high
September Weather20°C (69°F)122 mm (4.8 inches)73%very high
October Weather12°C (54°F)128 mm (5.0 inches)75%high
November Weather4°C (40°F)51 mm (2.0 inches)85%moderate
December Weather0°C (32°F)39 mm (1.5 inches)83%moderate

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