Climate almanac
Pekin
Illinois, United States · 40.57°, -89.64°
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)