Climate almanac

Pekin

Illinois, United States · 40.57°, -89.64°

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What is the climate like in Pekin?

The best time to visit Pekin is typically August – September, with trip comfort peaking in September (7.6/10). Pekin is warmest in July, when daily highs average 86°F (30°C), and coolest in January, when lows fall to about 22°F (-6°C). The wettest month is typically May and the driest is February; the year sees roughly 42 in (1078 mm) of precipitation.

  • Best time to visitAugust – September — comfort peaks in September (7.6/10)
  • Warmest monthJuly — average high 86°F (30°C)
  • Coolest monthJanuary — average low 22°F (-6°C)
  • Wettest monthMay (5.0 in (126 mm))
  • Driest monthFebruary (2.3 in (58 mm))
  • Annual precipitation42 in (1078 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromGeneral Wayne A Downing Intl A, 12 km away (1943-2026)