October Weather in Dayton, United States

Last updated: June 24, 2025

The average temperature in Dayton, United States during October is a cool 13°C (55°F). However, be prepared for a range of temperatures, as it can dip to a chilly -5°C (23°F) or rise to a warm 31°C (89°F). Expect around 131 mm (5.2 in) of precipitation spread across 13 days, contributing to an average humidity of 82%.

October Temperature in Dayton

In October in Dayton, the average temperature is 13°C (55°F), with maximums that can reach 31°C (89°F) and minimums that can drop as low as -5°C (23°F). Be sure to pack layers to prepare for the wide range of temperatures you'll experience during your travels.

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

The chart illustrates October 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, October typically has an average temperature of 13°C (55°F), with highs reaching up to 31°C (89°F) and lows dropping to around -5°C (23°F).

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

October Precipitation in Dayton

In Dayton in October, the precipitation amount is 131 mm (5.2 in) over the course of 13 days.

October Precipitation Trends in Dayton

The chart displays monthly precipitation patterns in Dayton, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Dayton, October typically receives around 131 mm (5.2 inches) of precipitation spread over approximately 13 days.

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

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Millimeters (mm) Inches (in)

October Humidity in Dayton

In Dayton in October, humidity is 82%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities sticky and uncomfortable for traveling.

October Average Humidity in Dayton

This chart illustrates the average monthly humidity levels in Dayton, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Dayton is approximately 82%, offering insight into how humid the weather typically is during this month.

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

October UV Index in Dayton

In Dayton in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Dayton, you can refer to this Hourly UV Index in Dayton.

Maximum UV Index Levels in Dayton for October

The chart shows the monthly maximum UV Index (UVI) for Dayton in October, 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 October, the maximum UV index in Dayton typically reaches 6, which falls under the high exposure category.

Data source: Dayton October 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 October 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 October’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 October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	62 mm (2.4 inches)	82%	moderate
February Weather	-3°C (27°F)	63 mm (2.5 inches)	83%	moderate
March Weather	4°C (40°F)	90 mm (3.5 inches)	84%	high
April Weather	10°C (49°F)	115 mm (4.5 inches)	85%	very high
May Weather	17°C (62°F)	160 mm (6.3 inches)	79%	very high
June Weather	23°C (73°F)	142 mm (5.6 inches)	82%	very high
July Weather	24°C (76°F)	105 mm (4.1 inches)	80%	very high
August Weather	23°C (73°F)	75 mm (2.9 inches)	81%	very high
September Weather	20°C (68°F)	96 mm (3.8 inches)	80%	very high
October Weather	13°C (55°F)	131 mm (5.2 inches)	82%	high
November Weather	4°C (39°F)	56 mm (2.2 inches)	88%	moderate
December Weather	0°C (33°F)	53 mm (2.1 inches)	84%	low