Sugar Grove Illinois Climate Data

Monthly Average Climate Data for Sugar Grove Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.4 °F30.1 °F1.91 in.
February17.4 °F34.3 °F1.87 in.
March27.3 °F46.4 °F2.35 in.
April37.9 °F59.5 °F3.81 in.
May49.2 °F70.7 °F4.79 in.
June59.2 °F80.5 °F4.42 in.
July63.1 °F83.8 °F3.78 in.
August61.2 °F81.8 °F3.86 in.
September53.2 °F75.9 °F3.27 in.
October41.2 °F63.0 °F3.35 in.
November30.5 °F48.2 °F2.54 in.
December20.4 °F35.5 °F2.16 in.
Annual39.6 °F59.1 °F38.11 in.

Climate Data for Sugar Grove Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com