Bellflower Illinois Climate Data

Monthly Average Climate Data for Bellflower Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.6 °C0.5 °C57.15 mm
February-6.7 °C2.9 °C49.53 mm
March-1.7 °C9.5 °C67.56 mm
April4.3 °C16.9 °C98.55 mm
May10.9 °C23 °C113.28 mm
June16.2 °C27.7 °C114.55 mm
July17.7 °C29.2 °C105.16 mm
August16.4 °C28.3 °C89.66 mm
September12.2 °C25.7 °C83.82 mm
October5.7 °C18.6 °C84.58 mm
November-0.3 °C10.2 °C73.41 mm
December-5.4 °C3.2 °C58.42 mm
Annual5.1 °C16.3 °C995.67 mm

Climate Data for Bellflower 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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