About Lebanon, IN's Climate & Weather History

Lebanon is a city of approximately 15,900 people in Indiana, United States. Located in the America/Indiana/Indianapolis time zone at 40°N latitude.

In 2025, Lebanon recorded an average annual temperature of 52°F. The hottest temperatures reached 90°F in July; the coolest were -6°F in January. Total precipitation for the year was 36 inches, with the wettest month being July. Snowfall for the year totaled approximately 8 inches.