Spearfish

What is the climate like in Spearfish?

The best time to visit Spearfish is typically June – October, with trip comfort peaking in August (8.0/10). Spearfish is warmest in July, when daily highs average 85°F (30°C), and coolest in February, when lows fall to about 17°F (-9°C). The wettest month is typically May and the driest is November; the year sees roughly 24 in (618 mm) of precipitation.

• Best time to visitJune – October — comfort peaks in August (8.0/10)
• Warmest monthJuly — average high 85°F (30°C)
• Coolest monthFebruary — average low 17°F (-9°C)
• Wettest monthMay (3.8 in (96 mm))
• Driest monthNovember (0.8 in (21 mm))
• Annual precipitation24 in (618 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromSpearfish, 1 km away (1893-2026)