Dayton (OH)
September
Weather in Dayton, Ohio for September 2027
Your guide to Dayton weather in September - trends and predictions
In general, the average temperature in Dayton at the beginning of September is 27.8 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22.5 °C by the end of September.
Dayton experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 213.4 mm.
Is September a good time to visit Dayton? check out the best time to travel to Dayton page.
✨ Is September a good time to visit Dayton? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
22
Dry days
8
Rainy days
0
Snow days
26°/16°
Temperatures
15 km/h
Avg max wind
68 %
Avg humidity
Dayton Weather September
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Temperatures trend during September in Dayton
See the weather trend as well as the moving average line
September weather in Dayton day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 30° /17° | 0 mm | 7 | |
| Sept. 2 | Sunny | 29° /16° | 0 mm | 7 | |
| Sept. 3 |  Overcast | 29° /16° | 0 mm | 7 | |
| Sept. 4 |  Light rain | 29° /17° | 8.9 mm | 7 | |
| Sept. 5 | Light rain | 28° /16° | 9 mm | 6 | |
| Sept. 6 |  Moderate rain | 26° /15° | 11.1 mm | 6 | |
| Sept. 7 | Sunny | 24° /12° | 0 mm | 6 | |
| Sept. 8 | Sunny | 24° /10° | 0 mm | 5 | |
| Sept. 9 | Light rain | 28° /14° | 5 mm | 7 | |
| Sept. 10 |  Patchy rain possible | 27° /15° | 1.3 mm | 5 | |
| Sept. 11 | Light rain | 28° /17° | 5.5 mm | 5 | |
| Sept. 12 |  Heavy rain | 27° /16° | 33.1 mm | 5 | |
| Sept. 13 | Overcast | 28° /16° | 0.5 mm | 6 | |
| Sept. 14 |  Partly cloudy | 28° /16° | 0 mm | 7 | |
| Sept. 15 | Sunny | 30° /16° | 0 mm | 7.1 | |
| Sept. 16 | Light rain | 29° /18° | 3.8 mm | 5 | |
| Sept. 17 | Patchy rain possible | 28° /15° | 1.8 mm | 6 | |
| Sept. 18 |  Mist | 26° /18° | 0.1 mm | 5 | |
| Sept. 19 | Light rain | 29° /17° | 3.5 mm | 6 | |
| Sept. 20 | Moderate rain | 28° /18° | 11.7 mm | 5 | |
| Sept. 21 | Light rain | 25° /17° | 2.6 mm | 5 | |
| Sept. 22 |  Thundery outbreaks possible | 23° /17° | 13.4 mm | 4 | |
| Sept. 23 | Moderate rain | 21° /16° | 13 mm | 4 | |
| Sept. 24 | Thundery outbreaks possible | 20° /16° | 70.3 mm | 4 | |
| Sept. 25 | Mist | 22° /14° | 0 mm | 5 | |
| Sept. 26 | Overcast | 22° /13° | 0 mm | 5 | |
| Sept. 27 | Patchy rain possible | 22° /13° | 1.7 mm | 5 | |
| Sept. 28 | Light rain | 23° /14° | 4.6 mm | 5.9 | |
| Sept. 29 | Light rain | 23° /14° | 9.3 mm | 5 | |
| Sept. 30 | Light rain | 25° /15° | 3.2 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Dayton in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Dayton forecast closer to your planned date for the most up-to-date weather information.
Change Month
Dayton in September - FAQ
What are the expected maximum and minimum temperatures in Dayton during September?
During September, expect a variety of temperatures with highs around 26° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Dayton during September?
Significant rainfall exceeding 213.4 mm is expected in Dayton during September, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Dayton during September?
The average wind speed in Dayton during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Dayton
Explore the daily rainfall trends and prepare for Daytons September weather 💧
Typically, Dayton has 8 rainy days in September with a total of 213.4 mm of rainfall.
UV exposure in Dayton during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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