Dayton (OH) Sunshine Hours by Month

When exploring climate, sunlight hours tell an important story. This page shows the total number of hours of direct sunlight per month and the average hours per day in Dayton, Ohio, United States of America. This average is based on long-term data collected between 1990 and 2020.

Monthly hours of sunshine

Sunshine in Dayton varies greatly throughout the year. The sunniest month, July, reaches an impressive 298 hours, while December, the darkest month, offers only 97 hours. The total annual amount of sun is 2437 hours.

Daily hours of sunshine

Seasonal changes in sunshine hours are quite obvious in Dayton. While July receives considerable daily sunshine with up to 9.9 hours, December marks the darkest time of the year, where sunshine is scarce with only 3.2 hours of sunlight per day.

Average percent of sunshine

On average the sun shines 65% of the time during the day in August, the highest percentage of any month. December has the lowest percentage at 33%.

Dayton enjoys an average of 2437 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Athens, Greece, enjoys 2769 hours of sunshine each year, making it one of the sunniest destinations in the Mediterranean region.

In contrast, Brussels, Belgium, receives only about 1590 hours of sunshine per year, known for its frequently overcast and rainy skies.

Toronto, Canada, sees around 2071 hours of sunshine each year, with especially long, bright summer days.

In Tokyo, Japan, the average annual sunshine is 1930 hours, with sunny periods between rainy seasons.

June, Dayton’s wettest month, receives 104 mm (4.1 in) of rainfall and has a maximum daytime temperature of 29°C (84°F). During the driest month February you can expect a temperature of 3°C (37°F).

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Dayton Precipitation page.