Climate almanac
Bluffton
Indiana, United States · 40.74°, -85.17°
What is the climate like in Bluffton?
The best time to visit Bluffton is typically June – September, with trip comfort peaking in September (7.5/10). Bluffton is warmest in July, when daily highs average 84°F (29°C), and coolest in January, when lows fall to about 23°F (-5°C). The wettest month is typically May and the driest is September; the year sees roughly 41 in (1044 mm) of precipitation.
- Best time to visitJune – September — comfort peaks in September (7.5/10)
- Warmest monthJuly — average high 84°F (29°C)
- Coolest monthJanuary — average low 23°F (-5°C)
- Wettest monthMay (4.5 in (114 mm))
- Driest monthSeptember (2.4 in (62 mm))
- Annual precipitation41 in (1044 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromBluffton 6n, 8 km away (1971-2023)