Fillmore Illinois Climate Data

Monthly Average Climate Data for Fillmore Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-6.6 °C2.3 °C70.61 mm
February-4.6 °C5.3 °C57.91 mm
March0.4 °C11.4 °C79.76 mm
April6.1 °C18.4 °C119.63 mm
May12.2 °C23.9 °C124.46 mm
June17.2 °C28.8 °C115.06 mm
July18.9 °C30.4 °C102.11 mm
August17.6 °C29.8 °C84.58 mm
September13.1 °C26.8 °C80.01 mm
October6.7 °C19.9 °C85.85 mm
November1.1 °C11.6 °C89.92 mm
December-3.7 °C5.1 °C66.55 mm
Annual6.5 °C17.8 °C1076.45 mm

Climate Data for Fillmore 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 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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