Peoria Illinois Climate Data

Monthly Average Climate Data for Peoria Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.3 °C0.7 °C53.59 mm
February-6.4 °C3.4 °C52.07 mm
March-0.9 °C10.2 °C65.79 mm
April5.1 °C17.3 °C98.55 mm
May11.4 °C23.3 °C118.11 mm
June16.7 °C28.3 °C118.62 mm
July18.7 °C30.1 °C101.09 mm
August17.4 °C29.2 °C86.87 mm
September12.7 °C26.1 °C89.41 mm
October6 °C18.9 °C81.03 mm
November-0.1 °C10.7 °C68.58 mm
December-5.2 °C3.7 °C53.09 mm
Annual5.6 °C16.8 °C986.8 mm

Climate Data for Peoria Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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