Defiance, in Ohio, United States, is home to roughly 16,800 people in the Eastern Time Zone at 41.3°N latitude.
Defiance has a humid continental climate. Average annual temperature is 50°F, with January lows around 18°F and July highs near 84°F. The city averages 33 inches of precipitation per year. The wettest month is typically May; the driest is February.