nomadseason

May Weather in Oskaloosa, United States

Last updated: June 24, 2025

In Oskaloosa, United States, the average temperature in May is a comfortable 19°C (66°F). However, temperatures can range from a brisk 3°C (38°F) to a sweltering 34°C (94°F). You can expect about 218 mm (8.6 in) of precipitation over 14 days, coupled with an average humidity of 82%.

May Temperature in Oskaloosa

In May in Oskaloosa, the average temperature is 19°C (66°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 3°C (38°F). This diverse temperature range makes Oskaloosa an ideal destination for travelers seeking both warm days and cooler evenings.

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 19°C (66°F), with highs reaching up to 34°C (94°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec303246546577807671564337
Data source: Temperature data for Oskaloosa generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Oskaloosa

In Oskaloosa in May, the total precipitation amount is 218 mm (8.6 in) over the course of 14 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 218 mm (8.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec45311008921812591136851154133
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Oskaloosa

In Oskaloosa in May humidity is 82%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket wrapping around you, making it slightly uncomfortable for traveling as you might find yourself constantly seeking shade or a cool breeze.

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 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%70%73%82%82%81%78%71%71%81%84%
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 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 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
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-1°C (31°F)45 mm (1.8 inches)76%moderate
February Weather0°C (32°F)31 mm (1.2 inches)77%moderate
March Weather8°C (46°F)100 mm (3.9 inches)70%high
April Weather12°C (54°F)88 mm (3.5 inches)73%very high
May Weather19°C (66°F)218 mm (8.6 inches)82%very high
June Weather25°C (77°F)125 mm (4.9 inches)82%extreme
July Weather26°C (80°F)91 mm (3.6 inches)81%extreme
August Weather25°C (77°F)136 mm (5.3 inches)78%very high
September Weather22°C (72°F)85 mm (3.3 inches)71%very high
October Weather13°C (56°F)115 mm (4.5 inches)71%high
November Weather6°C (44°F)41 mm (1.6 inches)81%moderate
December Weather3°C (37°F)33 mm (1.3 inches)84%moderate

Compare Oskaloosa's Climate with Cities Worldwide