Grantsville

What is the climate like in Grantsville?

The best time to visit Grantsville is typically May – October, with trip comfort peaking in June (8.6/10). Grantsville is warmest in July, when daily highs average 94°F (34°C), and coolest in January, when lows fall to about 24°F (-4°C). The wettest month is typically March and the driest is July; the year sees roughly 18 in (446 mm) of precipitation.

• Best time to visitMay – October — comfort peaks in June (8.6/10)
• Warmest monthJuly — average high 94°F (34°C)
• Coolest monthJanuary — average low 24°F (-4°C)
• Wettest monthMarch (2.5 in (63 mm))
• Driest monthJuly (0.5 in (12 mm))
• Annual precipitation18 in (446 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromGrantsville 2w, 4 km away (1913-2026)