July Weather in Dayton, United States

Last updated: June 24, 2025

The average temperature in Dayton, United States during July is a pleasant 26°C (79°F). Expect temperature fluctuations, with a minimum of 13°C (56°F) and a maximum reaching up to 37°C (99°F). Precipitation levels can be substantial, averaging 138 mm (5.4 in) over 14 days, accompanied by an average humidity of 62%. Whether you're exploring or relaxing, be prepared for a mix of warm temperatures and occasional rain!

July Temperature in Dayton

In July in Dayton, the average temperature is 26°C (79°F). Maximum temperatures can reach 37°C (99°F), while minimums can dip as low as 13°C (56°F). This climate makes Dayton an ideal destination for travelers seeking warm weather and outdoor adventures.

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

The chart illustrates July 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, July typically has an average temperature of 26°C (79°F), with highs reaching up to 37°C (99°F) and lows dropping to around 13°C (56°F).

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

July Precipitation in Dayton

In Dayton in July, the total precipitation amount is 138 mm (5.4 in) over a span of 14 days.

July Precipitation Trends in Dayton

The chart displays monthly precipitation patterns in Dayton, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Dayton, July typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 14 days.

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

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Millimeters (mm) Inches (in)

July Humidity in Dayton

In Dayton in July humidity is 62%. With an average temperature of 26°C (79°F), this humidity feels like a warm embrace, making travel enjoyable but slightly sticky, as the air wraps around you with a tropical touch.

July Average Humidity in Dayton

This chart illustrates the average monthly humidity levels in Dayton, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Dayton is approximately 62%, offering insight into how humid the weather typically is during this month.

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

July UV Index in Dayton

In Dayton in July, 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 July

The chart shows the monthly maximum UV Index (UVI) for Dayton in July, 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 July, the maximum UV index in Dayton typically reaches 10, which falls under the very high exposure category.

Data source: Dayton July 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 July 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 July’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 July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (35°F)	63 mm (2.5 inches)	84%	moderate
February Weather	3°C (39°F)	109 mm (4.3 inches)	82%	moderate
March Weather	6°C (44°F)	107 mm (4.2 inches)	81%	high
April Weather	12°C (54°F)	107 mm (4.2 inches)	78%	very high
May Weather	17°C (63°F)	127 mm (5.0 inches)	69%	very high
June Weather	23°C (73°F)	97 mm (3.8 inches)	69%	very high
July Weather	26°C (79°F)	138 mm (5.4 inches)	62%	very high
August Weather	25°C (76°F)	131 mm (5.2 inches)	65%	very high
September Weather	21°C (71°F)	88 mm (3.5 inches)	68%	very high
October Weather	16°C (61°F)	132 mm (5.2 inches)	74%	high
November Weather	8°C (47°F)	83 mm (3.3 inches)	82%	moderate
December Weather	4°C (39°F)	102 mm (4.0 inches)	80%	low