Carol Stream Illinois Climate Data

Monthly Average Climate Data for Carol Stream Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.2 °F31.1 °F2.07 in.
February17.9 °F35.0 °F1.99 in.
March27.4 °F46.6 °F2.31 in.
April37.7 °F59.3 °F3.83 in.
May48.6 °F70.6 °F4.89 in.
June58.6 °F80.5 °F4.5 in.
July63.5 °F84.5 °F3.74 in.
August62.0 °F82.5 °F4.1 in.
September54.1 °F75.9 °F3.38 in.
October42.0 °F62.7 °F3.46 in.
November31.0 °F48.3 °F2.57 in.
December21.2 °F36.2 °F2.21 in.
Annual39.9 °F59.4 °F39.05 in.

Climate Data for Carol Stream Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation