Carrollton Illinois Climate Data

Monthly Average Climate Data for Carrollton Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.1 °C2.3 °C57.91 mm
February-5.2 °C5.3 °C54.1 mm
March-0.2 °C11.4 °C77.72 mm
April5.7 °C18.1 °C111.76 mm
May12 °C23.6 °C125.22 mm
June17.2 °C28.3 °C114.81 mm
July18.9 °C30.1 °C97.03 mm
August17.7 °C29.5 °C87.12 mm
September12.9 °C26.3 °C83.82 mm
October6.6 °C19.6 °C79.76 mm
November0.7 °C11.6 °C82.55 mm
December-4.3 °C5 °C61.47 mm
Annual6.2 °C17.6 °C1033.27 mm

Climate Data for Carrollton Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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