Cary Illinois Climate Data

Monthly Average Climate Data for Cary Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.3 °F30.0 °F1.9 in.
February17.1 °F33.9 °F1.91 in.
March26.6 °F45.5 °F2.18 in.
April36.9 °F58.2 °F3.75 in.
May47.8 °F69.6 °F4.95 in.
June57.8 °F79.5 °F4.98 in.
July62.7 °F83.6 °F4.06 in.
August61.1 °F81.5 °F4.06 in.
September53.2 °F74.7 °F3.51 in.
October41.6 °F61.8 °F3.17 in.
November30.5 °F47.4 °F2.47 in.
December20.4 °F35.3 °F2.09 in.
Annual39.2 °F58.4 °F39.03 in.

Climate Data for Cary 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 ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation