About Leonia, NJ

Leonia is a city of approximately 9,200 people in New Jersey, United States. Located in the Eastern Time Zone at 40.9°N latitude.

Leonia has a humid continental climate. Average annual temperature is 55°F, with January lows around 26°F and July highs near 87°F. The city averages 46 inches of precipitation per year. The wettest month is typically July; the driest is February.