December in Terre Haute averages a daily high of 5.8°C with nights around -5°C. Expect roughly 9.4 wet days totalling 78.4mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Terre Haute is April–May.
Based on TERRE HAUTE INDIANA STATE, IN US (0.7km), 1995–2024. 16 years of December data.