Dayton Weather in January

The climate in Dayton during January can be summarized as cool and wet.

January is in the winter in Dayton and is typically the coldest month of the year. Daytime maximum temperatures average around a cold 8°C (46°F), whilst at night -3°C (27°F) is normal.

On average January is the 4th wettest month of the year in Dayton with around 122mm 4.8 inches of rain making it a wet 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 5 hours of sunshine per day.

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 January 2025.