August Weather in Dayton, United States

Last updated: June 24, 2025

In Dayton, United States, the average temperature in August hovers around 22°C (71°F), making it a pleasant time to visit. Expect a minimum of 9°C (48°F) and a maximum reaching up to 34°C (94°F). With an average humidity of 64%, you may experience some stickiness, especially during the warmer days. Be prepared for 105 mm (4.1 in) of precipitation over approximately 15 days, so pack an umbrella just in case!

August Temperature in Dayton

In August in Dayton, the average temperature is 22°C (71°F). Temperatures can rise to a maximum of 34°C (94°F) and drop to a minimum as low as 9°C (48°F). This makes it a great time for travelers to enjoy warm days and cooler nights, perfect for a variety of outdoor activities.

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 22°C (71°F), with highs reaching up to 34°C (94°F) and lows dropping to around 9°C (48°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 total precipitation amount is 105 mm (4.1 in) over a span of 15 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 105 mm (4.1 inches) of precipitation spread over approximately 15 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 64%. With an average temperature of 22°C (71°F), this humidity feels like a warm, enveloping blanket, making it a comfortable time for exploring the local sights, although staying hydrated and taking breaks in the shade is advisable for a pleasant travel experience.

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 64%, 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 is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, 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 9, which falls under the very high 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	-2°C (29°F)	100 mm (3.9 inches)	89%	moderate
February Weather	0°C (32°F)	123 mm (4.8 inches)	90%	moderate
March Weather	4°C (39°F)	106 mm (4.2 inches)	89%	high
April Weather	9°C (49°F)	135 mm (5.3 inches)	88%	very high
May Weather	15°C (60°F)	156 mm (6.1 inches)	80%	very high
June Weather	20°C (68°F)	139 mm (5.5 inches)	79%	very high
July Weather	23°C (73°F)	137 mm (5.4 inches)	74%	very high
August Weather	22°C (71°F)	105 mm (4.1 inches)	64%	very high
September Weather	18°C (65°F)	125 mm (4.9 inches)	67%	very high
October Weather	13°C (55°F)	128 mm (5.0 inches)	81%	high
November Weather	4°C (40°F)	100 mm (3.9 inches)	89%	moderate
December Weather	1°C (34°F)	106 mm (4.2 inches)	88%	low