Dayton (OH) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Dayton.
Climate overview of Dayton
Temperatures in Dayton, Ohio, United States of America, vary greatly throughout the year. July is the hottest month at 30°C (86°F), while February is the coldest at 3°C (37°F).
The city receives considerable rain/snowfall, with around 1102 mm (43 in) annually. June is the wettest month. July is the sunniest month, averaging 9.9 hours of sunshine per day.
Dayton Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Dayton — and find the best time to visit.
Monthly Temperature in Dayton
The climate in Dayton is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 30°C (86°F) in July to a chilly 3°C (37°F) in the coolest month, February.
Nights vary from 19°C (66°F) in July to around -6°C (21°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Dayton
Dayton has a notably wet climate with abundant precipitation, recording 1102 mm (43 in) of rain/snowfall per year. Dayton offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month June (129 mm (5.1 in)) and the driest month February (62 mm (2.4 in)) is not too significant. For more details, please visit our Dayton Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Dayton
For those who appreciate different seasons, Dayton serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.9 hours of sunshine daily, and embrace the darker days in December, offering only 3.2 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Dayton by Month
The relative humidity is high throughout the year in Dayton.
The city experiences its highest humidity in December, reaching 76%. In April, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Dayton
Frequently asked questions about the climate in Dayton
What is the best time to visit Dayton?
May and September typically offer the most optimal weather in Dayton. In contrast, January, February, March and December tend to have less optimal conditions.
What temperatures can I expect in Dayton?
Daytime highs range from 3°C (37°F) in February to 30°C (86°F) in July. Nighttime lows range from -6°C (21°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Dayton get?
Annual rainfall is around 1102 mm (43 in). June is the wettest month with 129 mm (5.1 in), while February is the driest with 62 mm (2.4 in).
How sunny is Dayton?
Dayton receives around 2,437 hours of sunshine per year. July is the sunniest month with 298 hours, while December is the cloudiest with just 97 hours. Overall, Dayton enjoys abundant sunshine.
Dayton 3-Day Forecast
Dayton (OH) 3-Day Forecast
Dayton on the map
Dayton is highlighted — select any city to see its climate.
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