Yankton

What is the climate like in Yankton?

The best time to visit Yankton is typically June – October, with trip comfort peaking in September (7.8/10). Yankton is warmest in July, when daily highs average 86°F (30°C), and coolest in January, when lows fall to about 15°F (-9°C). The wettest month is typically May and the driest is February; the year sees roughly 31 in (790 mm) of precipitation.

• Best time to visitJune – October — comfort peaks in September (7.8/10)
• Warmest monthJuly — average high 86°F (30°C)
• Coolest monthJanuary — average low 15°F (-9°C)
• Wettest monthMay (5.2 in (132 mm))
• Driest monthFebruary (0.9 in (23 mm))
• Annual precipitation31 in (790 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromYankton Chan Gurney Muni AP, 5 km away (1932-2026)