Genoa Illinois Climate Data

Monthly Average Climate Data for Genoa Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.0 °F28.9 °F1.74 in.
February16.3 °F33.2 °F1.72 in.
March26.3 °F45.3 °F2.3 in.
April36.9 °F58.7 °F3.61 in.
May48.5 °F70.3 °F4.85 in.
June58.3 °F80.0 °F4.89 in.
July62.3 °F83.2 °F3.84 in.
August60.3 °F81.3 °F4.13 in.
September52.1 °F75.3 °F3.46 in.
October40.3 °F62.4 °F2.96 in.
November29.5 °F47.1 °F2.42 in.
December19.0 °F34.3 °F2.0 in.
Annual38.6 °F58.3 °F37.92 in.

Climate Data for Genoa 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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