May Weather in Oelwein, United States

Last updated: June 24, 2025

In May, the average temperature in Oelwein, United States hovers around 16°C (60°F). However, temperatures can range from a chilly -2°C (29°F) to a blistering 34°C (93°F). Prepare for moderate precipitation, with 176 mm (6.9 in) spread over 14 days, and a relatively high average humidity of 75%.

May Temperature in Oelwein

In May in Oelwein, the average temperature is 16°C (60°F), with maximums reaching 34°C (93°F) and minimums dropping as low as -2°C (29°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both light clothing for the warm days and warmer layers for the cooler nights.

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

The chart illustrates May temperature patterns in Oelwein, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oelwein, May typically has an average temperature of 16°C (60°F), with highs reaching up to 34°C (93°F) and lows dropping to around -2°C (29°F).

Data source: Temperature data for Oelwein generated using information from the Copernicus Climate Change Service.

May Precipitation in Oelwein

In Oelwein in May, the precipitation amount is 176 mm (6.9 in) over a period of 14 days.

May Precipitation Trends in Oelwein

The chart displays monthly precipitation patterns in Oelwein, 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 Oelwein, May typically receives around 176 mm (6.9 inches) of precipitation spread over approximately 14 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Oelwein

In Oelwein in May humidity is 75%. With an average temperature of 16°C (60°F), this humidity feels like a warm, muggy blanket enveloping you, making outdoor activities a bit uncomfortable and requiring frequent hydration breaks while traveling.

May Average Humidity in Oelwein

This chart illustrates the average monthly humidity levels in Oelwein, 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 Oelwein is approximately 75%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Oelwein

In Oelwein 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 Oelwein.

Maximum UV Index Levels in Oelwein for May

The chart shows the monthly maximum UV Index (UVI) for Oelwein 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 Oelwein typically reaches 9, which falls under the very high exposure category.

Data source: Oelwein 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 Oelwein Compares to Other Months

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

This table compares monthly weather conditions in Oelwein, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	40 mm (1.6 inches)	84%	moderate
February Weather	-6°C (21°F)	52 mm (2.0 inches)	85%	moderate
March Weather	2°C (36°F)	68 mm (2.7 inches)	84%	moderate
April Weather	8°C (46°F)	75 mm (3.0 inches)	83%	very high
May Weather	16°C (60°F)	176 mm (6.9 inches)	75%	very high
June Weather	22°C (72°F)	138 mm (5.4 inches)	79%	extreme
July Weather	23°C (75°F)	106 mm (4.2 inches)	75%	very high
August Weather	21°C (71°F)	102 mm (4.0 inches)	69%	very high
September Weather	18°C (66°F)	129 mm (5.1 inches)	74%	very high
October Weather	10°C (51°F)	137 mm (5.4 inches)	79%	moderate
November Weather	2°C (36°F)	49 mm (1.9 inches)	88%	moderate
December Weather	-2°C (29°F)	36 mm (1.4 inches)	82%	moderate