April Weather in Oskaloosa, United States

Last updated: June 24, 2025

In April, the average temperature in Oskaloosa, United States hovers around 10°C (50°F). Temperatures can vary significantly, dipping as low as -10°C (15°F) and soaring to a maximum of 29°C (85°F). Expect about 72 mm (2.8 in) of precipitation over 9 days, with an average humidity level of 77%.

April Temperature in Oskaloosa

In April in Oskaloosa, the average temperature is 10°C (50°F), with maximums reaching 29°C (85°F) and minimums dropping as low as -10°C (15°F). This range makes it essential for travelers to pack for both warm and cold conditions.

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

The chart illustrates April 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, April typically has an average temperature of 10°C (50°F), with highs reaching up to 29°C (85°F) and lows dropping to around -10°C (15°F).

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

April Precipitation in Oskaloosa

In Oskaloosa in April, the precipitation amount is 72 mm (2.8 in) over the course of 9 days.

April Precipitation Trends in Oskaloosa

The chart displays monthly precipitation patterns in Oskaloosa, 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 Oskaloosa, April typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 9 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in Oskaloosa

In Oskaloosa in April, humidity is 77%. With an average temperature of 10°C (50°F), this humidity feels like a thick, heavy blanket enveloping you, making travel uncomfortable and sticky, as it clings to your skin and clothes, turning each step into a challenge.

April Average Humidity in Oskaloosa

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

In Oskaloosa in April, 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 Oskaloosa.

Maximum UV Index Levels in Oskaloosa for April

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

Data source: Oskaloosa 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 Oskaloosa Compares to Other Months

Weather in Oskaloosa varies notably across the year, with each month offering distinct climate conditions. This page compares April’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 April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (24°F)	46 mm (1.8 inches)	78%	moderate
February Weather	-4°C (25°F)	49 mm (1.9 inches)	80%	moderate
March Weather	5°C (41°F)	87 mm (3.4 inches)	77%	high
April Weather	10°C (50°F)	72 mm (2.8 inches)	77%	very high
May Weather	17°C (63°F)	154 mm (6.1 inches)	77%	very high
June Weather	24°C (75°F)	130 mm (5.1 inches)	81%	extreme
July Weather	25°C (78°F)	76 mm (3.0 inches)	81%	extreme
August Weather	23°C (75°F)	69 mm (2.7 inches)	77%	very high
September Weather	20°C (69°F)	122 mm (4.8 inches)	73%	very high
October Weather	12°C (54°F)	128 mm (5.0 inches)	75%	high
November Weather	4°C (40°F)	51 mm (2.0 inches)	85%	moderate
December Weather	0°C (32°F)	39 mm (1.5 inches)	83%	moderate