August Weather in Dayton, United States

Last updated: June 24, 2025

In August, the average temperature in Dayton, United States hovers around 24°C (76°F), offering a pleasant climate. Temperatures can vary significantly, with minimums plummeting to 10°C (49°F) and maximums soaring up to 37°C (100°F). Precipitation is relatively low, with only 9 mm (0.3 in) expected over the course of 2 days. Additionally, the average humidity sits at a comfortable 34%, making it an ideal time to explore the region.

August Temperature in Dayton

In August in Dayton, the average temperature is 24°C (76°F). Maximums can reach 37°C (100°F), and minimums can be as low as 10°C (49°F). This makes Dayton an ideal destination for travelers seeking warm days and mild evenings.

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

The chart illustrates August 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, August typically has an average temperature of 24°C (76°F), with highs reaching up to 37°C (100°F) and lows dropping to around 10°C (49°F).

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

August Precipitation in Dayton

In Dayton in August, the precipitation amount is 9 mm (0.3 in) over a period of 2 days.

August Precipitation Trends in Dayton

The chart displays monthly precipitation patterns in Dayton, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Dayton, August typically receives around 9 mm (0.3 inches) of precipitation spread over approximately 2 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Dayton

In Dayton in August humidity is 34%. With an average temperature of 24°C (76°F), this humidity feels pleasantly comfortable for traveling, allowing for enjoyable outdoor activities without feeling overly sticky or weighed down by the heat.

August Average Humidity in Dayton

This chart illustrates the average monthly humidity levels in Dayton, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Dayton is approximately 34%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Dayton

In Dayton in August, 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 August

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

Data source: Dayton August 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 August 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 August’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 August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (34°F)	73 mm (2.9 inches)	85%	moderate
February Weather	2°C (36°F)	70 mm (2.8 inches)	87%	high
March Weather	5°C (41°F)	52 mm (2.1 inches)	84%	very high
April Weather	10°C (50°F)	25 mm (1.0 inches)	78%	very high
May Weather	14°C (58°F)	26 mm (1.0 inches)	64%	extreme
June Weather	21°C (69°F)	6 mm (0.2 inches)	56%	extreme
July Weather	25°C (78°F)	8 mm (0.3 inches)	44%	extreme
August Weather	24°C (76°F)	9 mm (0.3 inches)	34%	extreme
September Weather	19°C (67°F)	6 mm (0.2 inches)	41%	very high
October Weather	11°C (53°F)	29 mm (1.1 inches)	60%	high
November Weather	6°C (43°F)	30 mm (1.2 inches)	81%	moderate
December Weather	1°C (34°F)	49 mm (1.9 inches)	82%	moderate