October Weather in Dayton, United States

Last updated: June 24, 2025

In Dayton, United States, the average temperature in October sits at a comfortable 12°C (54°F). Expect minimum temperatures to drop to 0°C (32°F), while highs can reach up to 28°C (82°F). With an average precipitation of 128 mm (5.0 in) spread over 11 days, you'll want to carry an umbrella, but the average humidity of 78% adds a refreshing touch to the air.

October Temperature in Dayton

In October in Dayton, the average temperature is 12°C (54°F), with maximums reaching up to 28°C (82°F) and minimums dropping as low as 0°C (32°F). Be prepared for varying weather conditions during your travels, as it can be quite chilly at night while warm during the day.

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 12°C (54°F), with highs reaching up to 28°C (82°F) and lows dropping to around 0°C (32°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 total precipitation amount is 128 mm (5.0 in) spread over 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 128 mm (5.0 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 78%. With an average temperature of 12°C (54°F), this humidity feels like a damp chill settling in, making travel a bit uncomfortable as the air clings to your skin, leaving you feeling cooler than the thermometer suggests.

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 78%, 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 reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, 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 5, which falls under the moderate 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	-2°C (28°F)	80 mm (3.2 inches)	86%	low
February Weather	-2°C (29°F)	90 mm (3.6 inches)	84%	moderate
March Weather	2°C (35°F)	81 mm (3.2 inches)	82%	moderate
April Weather	7°C (46°F)	122 mm (4.8 inches)	80%	high
May Weather	13°C (56°F)	71 mm (2.8 inches)	72%	very high
June Weather	19°C (66°F)	70 mm (2.8 inches)	72%	very high
July Weather	22°C (72°F)	120 mm (4.7 inches)	67%	very high
August Weather	22°C (72°F)	65 mm (2.5 inches)	66%	very high
September Weather	18°C (65°F)	70 mm (2.8 inches)	71%	high
October Weather	12°C (54°F)	128 mm (5.0 inches)	78%	moderate
November Weather	5°C (42°F)	107 mm (4.2 inches)	84%	moderate
December Weather	0°C (33°F)	125 mm (4.9 inches)	81%	low