Climate almanac

Robinson

Illinois, United States · 39.01°, -87.74°

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What is the climate like in Robinson?

The best time to visit Robinson is typically August – October, with trip comfort peaking in September (7.4/10). Robinson is warmest in July, when daily highs average 87°F (31°C), and coolest in January, when lows fall to about 26°F (-3°C). The wettest month is typically July and the driest is September; the year sees roughly 48 in (1228 mm) of precipitation.

  • Best time to visitAugust – October — comfort peaks in September (7.4/10)
  • Warmest monthJuly — average high 87°F (31°C)
  • Coolest monthJanuary — average low 26°F (-3°C)
  • Wettest monthJuly (5.6 in (142 mm))
  • Driest monthSeptember (2.7 in (69 mm))
  • Annual precipitation48 in (1228 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromRobinson, 3 km away (1895-2026)