Climate almanac

Greenfield

Wisconsin, United States · 42.96°, -88.01°

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What is the climate like in Greenfield?

The best time to visit Greenfield is typically June – September, with trip comfort peaking in August (6.9/10). Greenfield 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, 9 km away (1938-2026)