Dayton Weather in May

What's the weather like in Dayton (Ohio) in May 2025?

The climate in Dayton during May can be summarized as mild and a little damp.

May is in the spring in Dayton and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a comfortable 23°C (73°F), whilst at night 11°C (51°F) is normal.

Dayton weather averages (imperial / metric)
Daytime temperature 22.8°C 73°F
Nightly temperature 10.5°C 50.8°F
Average temperature 16.6°C 61.9°F
Daily sunshine 9 hrs
Avg rainfall 95 mm 3.8 ins
Rainy days 12 days
Sea temperature 11.6°C 53°F
Humidity 66%
Windspeed 15.5kph 10 mph

On average May is the wettest month of the year in Dayton with around 95mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 9 hours of sunshine per day.

May temperatures in Dayton

Dayton average temperature in May

May rainfall

Dayton average rain in May

May hourly sunshine

Dayton average rain in May

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Dayton in May 2025.

Other monthly averages

Best places to visit in May

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Dayton weather stats

Dayton weather statistics
Hottest month: July 29.2°C 84.6°F
Driest month: February 58mm 2.3ins
Sunniest month: June 10.3hrs
Coldest month: January 1.4°C 34.5°F
Wettest month: May 95mm 3.7ins
Map showing location of Dayton (39.75895, -84.19161) Dayton map pin © Google

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