Lily Lake Illinois Climate Data

Monthly Average Climate Data for Lily Lake Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.2 °F29.2 °F1.89 in.
February16.6 °F33.4 °F1.85 in.
March26.3 °F45.4 °F2.33 in.
April36.4 °F58.4 °F3.7 in.
May48.0 °F69.9 °F5.01 in.
June57.9 °F79.6 °F4.43 in.
July62.1 °F82.8 °F3.92 in.
August60.2 °F80.8 °F3.95 in.
September51.8 °F74.6 °F3.61 in.
October40.5 °F61.7 °F3.35 in.
November29.8 °F47.0 °F2.56 in.
December19.4 °F34.5 °F2.19 in.
Annual38.5 °F58.1 °F38.79 in.

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