Greendale

What is the climate like in Greendale?

The best time to visit Greendale is typically June – September, with trip comfort peaking in August (6.9/10). Greendale is warmest in July, when daily highs average 79°F (26°C), and coolest in January, when lows fall to about 20°F (-6°C). The wettest month is typically May and the driest is February; the year sees roughly 37 in (952 mm) of precipitation.

• Best time to visitJune – September — comfort peaks in August (6.9/10)
• Warmest monthJuly — average high 79°F (26°C)
• Coolest monthJanuary — average low 20°F (-6°C)
• Wettest monthMay (4.2 in (106 mm))
• Driest monthFebruary (1.9 in (49 mm))
• Annual precipitation37 in (952 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromMilwaukee Mitchell AP, 8 km away (1938-2026)