August Weather in Dayton, United States

Last updated: June 24, 2025

In August, the average temperature in Dayton, United States hovers around 22°C (72°F), providing a pleasant climate for outdoor activities. Minimum temperatures can dip to 11°C (52°F), while maximums can rise to a warm 34°C (94°F). Expect 115 mm (4.5 in) of precipitation spread over 13 days, and enjoy a comfortable average humidity of 59%.

August Temperature in Dayton

In August in Dayton, the average temperature is a comfortable 22°C (72°F), making it an ideal time for outdoor activities. The maximum can reach a sweltering 34°C (94°F) while the minimum can drop to a cool 11°C (52°F), so travelers should be prepared for both warmth and cool evenings. Overall, this month offers a pleasant climate for exploring and enjoying all that Dayton has to offer.

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 (72°F), with highs reaching up to 34°C (94°F) and lows dropping to around 11°C (52°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 115 mm (4.5 in) spread over 13 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 115 mm (4.5 inches) of precipitation spread over approximately 13 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 59%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making it a pleasant time for outdoor adventures and sightseeing, though occasional breezes can refresh your 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 59%, 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 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more 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 10, 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	1°C (33°F)	64 mm (2.5 inches)	86%	moderate
February Weather	4°C (39°F)	90 mm (3.6 inches)	86%	high
March Weather	6°C (44°F)	69 mm (2.7 inches)	86%	high
April Weather	12°C (53°F)	107 mm (4.2 inches)	84%	very high
May Weather	17°C (63°F)	128 mm (5.0 inches)	78%	extreme
June Weather	21°C (70°F)	99 mm (3.9 inches)	79%	extreme
July Weather	24°C (75°F)	76 mm (3.0 inches)	70%	extreme
August Weather	22°C (72°F)	115 mm (4.5 inches)	59%	very high
September Weather	19°C (67°F)	112 mm (4.4 inches)	68%	very high
October Weather	14°C (58°F)	112 mm (4.4 inches)	80%	high
November Weather	6°C (43°F)	70 mm (2.7 inches)	86%	moderate
December Weather	3°C (38°F)	85 mm (3.3 inches)	85%	moderate