May Weather in Irrigon, United States

Last updated: June 24, 2025

In May, the average temperature in Irrigon, United States is a pleasant 19°C (66°F), with a minimum dipping to 4°C (39°F) and soaring to a maximum of 37°C (98°F). During this time, expect about 13 mm (0.5 in) of precipitation over 3 days, while an average humidity of 77% adds a touch of tropical feel to your experience. Enjoy the diverse weather!

May Temperature in Irrigon

In May in Irrigon, the average temperature is 19°C (66°F), with maximums reaching 37°C (98°F) and minimums dropping as low as 4°C (39°F). This range makes it an ideal time for travelers to experience a variety of outdoor activities and enjoy both warm and cool weather.

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

The chart illustrates May temperature patterns in Irrigon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Irrigon, May typically has an average temperature of 19°C (66°F), with highs reaching up to 37°C (98°F) and lows dropping to around 4°C (39°F).

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

May Precipitation in Irrigon

In Irrigon in May, the precipitation amount is 13 mm (0.5 in) over a span of 3 days.

May Precipitation Trends in Irrigon

The chart displays monthly precipitation patterns in Irrigon, 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 Irrigon, May typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 3 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 Irrigon

In Irrigon in May, humidity is 77%. With an average temperature of 19°C (66°F), this humidity feels like a heavy blanket wrapping around you, making the air feel thick and sticky, which can be quite uncomfortable for traveling.

May Average Humidity in Irrigon

This chart illustrates the average monthly humidity levels in Irrigon, 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 Irrigon is approximately 77%, 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 Irrigon

In Irrigon 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 Irrigon.

Maximum UV Index Levels in Irrigon for May

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

Data source: Irrigon 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 Irrigon Compares to Other Months

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

This table compares monthly weather conditions in Irrigon, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (37°F)	33 mm (1.3 inches)	86%	low
February Weather	3°C (38°F)	39 mm (1.5 inches)	86%	moderate
March Weather	8°C (47°F)	24 mm (0.9 inches)	85%	moderate
April Weather	13°C (56°F)	19 mm (0.7 inches)	83%	high
May Weather	19°C (66°F)	13 mm (0.5 inches)	77%	very high
June Weather	23°C (74°F)	7 mm (0.3 inches)	81%	very high
July Weather	27°C (81°F)	0 mm (0.0 inches)	76%	very high
August Weather	27°C (80°F)	2 mm (0.1 inches)	60%	very high
September Weather	21°C (69°F)	8 mm (0.3 inches)	58%	high
October Weather	13°C (55°F)	22 mm (0.9 inches)	75%	moderate
November Weather	6°C (44°F)	29 mm (1.1 inches)	85%	moderate
December Weather	3°C (37°F)	30 mm (1.2 inches)	87%	low