April Weather in Okanogan, United States

Last updated: June 24, 2025

In April, the average temperature in Okanogan, United States hovers around 9°C (48°F), making it a chilly yet invigorating time of year. Temperatures can dip as low as -5°C (24°F) or soar up to 25°C (78°F), offering a wide range of experiences. During this month, expect about 34 mm (1.3 in) of precipitation over 5 days, accompanied by an average humidity of 85%, adding a refreshing touch to the air.

April Temperature in Okanogan

In April in Okanogan, the average temperature is 9°C (48°F), with maximums reaching up to 25°C (78°F) and minimums plummeting as low as -5°C (24°F). Travelers should prepare for a wide range of temperatures and pack accordingly for both warm and chilly conditions.

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

The chart illustrates April 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, April typically has an average temperature of 9°C (48°F), with highs reaching up to 25°C (78°F) and lows dropping to around -5°C (24°F).

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

April Precipitation in Okanogan

In Okanogan in April, the precipitation amount is 34 mm (1.3 in) over the course of 5 days.

April Precipitation Trends in Okanogan

The chart displays monthly precipitation patterns in Okanogan, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Okanogan, April typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 5 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Okanogan

In Okanogan in April humidity is 85%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill enveloping you, making outdoor activities less enjoyable and requiring extra layers to stay warm and comfortable while traveling.

April Average Humidity in Okanogan

This chart illustrates the average monthly humidity levels in Okanogan, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Okanogan is approximately 85%, offering insight into how humid the weather typically is during this month.

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

April UV Index in Okanogan

In Okanogan in April, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Okanogan, you can refer to this Hourly UV Index in Okanogan.

Maximum UV Index Levels in Okanogan for April

The chart shows the monthly maximum UV Index (UVI) for Okanogan in April, 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 April, the maximum UV index in Okanogan typically reaches 6, which falls under the high exposure category.

Data source: Okanogan April 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 April 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 April’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 April’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