April Weather in Dayton, United States

Last updated: June 24, 2025

In Dayton, United States, the average temperature for April hovers around 21°C (69°F). Prepare for a temperature range that can drop to a chilly 3°C (38°F) and rise to a warm 31°C (89°F). Additionally, expect 106 mm (4.2 in) of precipitation over 11 days, with an average humidity level of 79%.

April Temperature in Dayton

In April in Dayton, the average temperature is 21°C (69°F). The maximum can reach 31°C (89°F), and the minimum can be as low as 3°C (38°F). This makes it a great time to visit Dayton for those who enjoy mild weather with the chance of warmer days.

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

The chart illustrates April temperature patterns in Dayton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dayton, April typically has an average temperature of 21°C (69°F), with highs reaching up to 31°C (89°F) and lows dropping to around 3°C (38°F).

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

April Precipitation in Dayton

In Dayton in April, the precipitation amount is 106 mm (4.2 in) spread over a duration of 11 days.

April Precipitation Trends in Dayton

The chart displays monthly precipitation patterns in Dayton, 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 Dayton, April typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 11 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 Dayton

In Dayton in April, humidity is 79%. With an average temperature of 21°C (69°F), this humidity feels like a warm embrace, making it ideal for leisurely explorations yet challenging for those unaccustomed to the mugginess while traveling.

April Average Humidity in Dayton

This chart illustrates the average monthly humidity levels in Dayton, 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 Dayton is approximately 79%, 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 Dayton

In Dayton in April, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Dayton.

Maximum UV Index Levels in Dayton for April

The chart shows the monthly maximum UV Index (UVI) for Dayton 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 Dayton typically reaches 11, which falls under the extreme exposure category.

Data source: Dayton 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 Dayton Compares to Other Months

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

This table compares monthly weather conditions in Dayton, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	93 mm (3.7 inches)	78%	moderate
February Weather	14°C (58°F)	102 mm (4.0 inches)	81%	very high
March Weather	18°C (65°F)	100 mm (3.9 inches)	76%	very high
April Weather	21°C (69°F)	106 mm (4.2 inches)	79%	extreme
May Weather	25°C (77°F)	188 mm (7.4 inches)	79%	extreme
June Weather	27°C (81°F)	171 mm (6.7 inches)	74%	extreme
July Weather	28°C (83°F)	142 mm (5.6 inches)	71%	extreme
August Weather	28°C (83°F)	208 mm (8.2 inches)	68%	extreme
September Weather	26°C (80°F)	217 mm (8.5 inches)	73%	very high
October Weather	22°C (72°F)	116 mm (4.6 inches)	75%	very high
November Weather	16°C (62°F)	79 mm (3.1 inches)	78%	high
December Weather	14°C (58°F)	117 mm (4.6 inches)	84%	moderate