Poplar Grove Illinois Climate Data

Monthly Average Climate Data for Poplar Grove Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.9 °F28.7 °F1.65 in.
February15.9 °F32.8 °F1.64 in.
March25.6 °F44.7 °F2.15 in.
April36.1 °F57.7 °F3.7 in.
May47.7 °F69.3 °F4.43 in.
June57.5 °F79.0 °F5.41 in.
July61.5 °F82.6 °F3.89 in.
August59.7 °F81.0 °F4.13 in.
September51.8 °F74.5 °F3.63 in.
October40.3 °F61.4 °F2.89 in.
November29.4 °F46.5 °F2.36 in.
December18.9 °F33.9 °F1.99 in.
Annual38.1 °F57.7 °F37.87 in.

Climate Data for Poplar Grove 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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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