May Weather in Okanogan, United States

Last updated: June 24, 2025

In May, the average temperature in Okanogan, United States hovers around 15°C (59°F). Expect a minimum chill of 0°C (32°F) and a maximum warmth of 31°C (89°F). On average, you can anticipate 33 mm (1.3 in) of precipitation spread over 6 days, with humidity levels around 82%. Stay prepared for a mix of weather!

May Temperature in Okanogan

In May in Okanogan, the average temperature is 15°C (59°F), with maximums reaching up to 31°C (89°F) and minimums dropping as low as 0°C (32°F). It's a great time for travelers to experience a mix of warm sunshine and cooler evenings, so be sure to pack accordingly!

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

The chart illustrates May temperature patterns in Okanogan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Okanogan, May typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (89°F) and lows dropping to around 0°C (32°F).

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

May Precipitation in Okanogan

In Okanogan, in May, the precipitation amount is 33 mm (1.3 in) over the course of 6 days.

May Precipitation Trends in Okanogan

The chart displays monthly precipitation patterns in Okanogan, 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 Okanogan, May typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 6 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Okanogan

In Okanogan in May, humidity is 82%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and uncomfortable for travelers.

May Average Humidity in Okanogan

This chart illustrates the average monthly humidity levels in Okanogan, 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 Okanogan is approximately 82%, 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 Okanogan

In Okanogan in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Okanogan.

Maximum UV Index Levels in Okanogan for May

The chart shows the monthly maximum UV Index (UVI) for Okanogan 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 Okanogan typically reaches 8, which falls under the very high exposure category.

Data source: Okanogan 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 Okanogan Compares to Other Months

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

This table compares monthly weather conditions in Okanogan, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	72 mm (2.8 inches)	90%	low
February Weather	-2°C (28°F)	48 mm (1.9 inches)	91%	moderate
March Weather	4°C (39°F)	45 mm (1.8 inches)	89%	moderate
April Weather	9°C (48°F)	34 mm (1.3 inches)	85%	high
May Weather	15°C (59°F)	33 mm (1.3 inches)	82%	very high
June Weather	19°C (67°F)	12 mm (0.5 inches)	81%	very high
July Weather	23°C (74°F)	2 mm (0.1 inches)	84%	very high
August Weather	22°C (72°F)	5 mm (0.2 inches)	75%	very high
September Weather	16°C (61°F)	21 mm (0.8 inches)	74%	high
October Weather	8°C (46°F)	39 mm (1.5 inches)	85%	moderate
November Weather	2°C (36°F)	54 mm (2.1 inches)	88%	moderate
December Weather	-2°C (28°F)	63 mm (2.5 inches)	93%	low