October Weather in Dayton, United States

Last updated: June 24, 2025

In Dayton, United States, the average temperature in October hovers around 22°C (72°F). You can expect minimums as low as 3°C (38°F) and highs reaching 34°C (93°F). During this month, 116 mm (4.6 in) of precipitation typically falls over 11 days, contributing to an average humidity of 75%.

October Temperature in Dayton

In October in Dayton, the average temperature is 22°C (72°F). Maximums can reach 34°C (93°F) and minimums can be as low as 3°C (38°F). This variation makes it essential for travelers to pack accordingly for both warm days and cool evenings.

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 22°C (72°F), with highs reaching up to 34°C (93°F) and lows dropping to around 3°C (38°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 116 mm (4.6 in) over the course of 11 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 116 mm (4.6 inches) of precipitation spread over approximately 11 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Dayton

In Dayton in October, humidity is 75%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making outdoor activities enjoyable yet requiring travelers to stay hydrated and take breaks in shaded areas.

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 75%, 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 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 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 9, which falls under the very 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	12°C (54°F)	93 mm (3.7 inches)	78%	moderate
February Weather	14°C (58°F)	102 mm (4.0 inches)	81%	very high
March Weather	18°C (65°F)	100 mm (3.9 inches)	76%	very high
April Weather	21°C (69°F)	106 mm (4.2 inches)	79%	extreme
May Weather	25°C (77°F)	188 mm (7.4 inches)	79%	extreme
June Weather	27°C (81°F)	171 mm (6.7 inches)	74%	extreme
July Weather	28°C (83°F)	142 mm (5.6 inches)	71%	extreme
August Weather	28°C (83°F)	208 mm (8.2 inches)	68%	extreme
September Weather	26°C (80°F)	217 mm (8.5 inches)	73%	very high
October Weather	22°C (72°F)	116 mm (4.6 inches)	75%	very high
November Weather	16°C (62°F)	79 mm (3.1 inches)	78%	high
December Weather	14°C (58°F)	117 mm (4.6 inches)	84%	moderate