April Weather in Onawa, United States

Last updated: June 24, 2025

In Onawa, United States, the average temperature in April hovers around 9°C (49°F). However, temperatures can vary significantly, with a minimum of -10°C (13°F) and a maximum reaching 30°C (85°F). Expect about 71 mm (2.8 in) of precipitation over 10 days, contributing to an average humidity of 74%.

April Temperature in Onawa

In April in Onawa, the average temperature is 9°C (49°F). Maximums can reach 30°C (85°F) and minimums can drop to as low as -10°C (13°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates April temperature patterns in Onawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Onawa, April typically has an average temperature of 9°C (49°F), with highs reaching up to 30°C (85°F) and lows dropping to around -10°C (13°F).

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

April Precipitation in Onawa

In Onawa in April, the precipitation amount is 71 mm (2.8 in) over a duration of 10 days.

April Precipitation Trends in Onawa

The chart displays monthly precipitation patterns in Onawa, 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 Onawa, April typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 10 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 Onawa

In Onawa in April humidity is 74%. With an average temperature of 9°C (49°F), this humidity feels like a chilly embrace that can make outdoor activities somewhat uncomfortable; travelers may find themselves needing to dress in layers to stay warm while also coping with the dampness in the air.

April Average Humidity in Onawa

This chart illustrates the average monthly humidity levels in Onawa, 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 Onawa is approximately 74%, 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 Onawa

In Onawa 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 Onawa.

Maximum UV Index Levels in Onawa for April

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

Data source: Onawa 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 Onawa Compares to Other Months

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

This table compares monthly weather conditions in Onawa, 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)	27 mm (1.1 inches)	76%	moderate
February Weather	-5°C (24°F)	33 mm (1.3 inches)	80%	moderate
March Weather	4°C (40°F)	83 mm (3.3 inches)	73%	moderate
April Weather	9°C (49°F)	71 mm (2.8 inches)	74%	very high
May Weather	16°C (62°F)	142 mm (5.6 inches)	78%	very high
June Weather	24°C (75°F)	114 mm (4.5 inches)	82%	extreme
July Weather	25°C (77°F)	64 mm (2.5 inches)	83%	very high
August Weather	23°C (74°F)	110 mm (4.3 inches)	80%	very high
September Weather	20°C (69°F)	91 mm (3.6 inches)	75%	very high
October Weather	11°C (52°F)	94 mm (3.7 inches)	75%	high
November Weather	4°C (39°F)	29 mm (1.1 inches)	82%	moderate
December Weather	-1°C (30°F)	40 mm (1.6 inches)	83%	low