Dahlgren Illinois Climate Data

Monthly Average Climate Data for Dahlgren Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-5 °C4.2 °C83.31 mm
February-3.4 °C6.9 °C70.61 mm
March1.3 °C12.6 °C100.33 mm
April6.9 °C19.1 °C125.98 mm
May12.8 °C24.1 °C129.54 mm
June17.6 °C29 °C118.87 mm
July19.5 °C30.7 °C100.58 mm
August18.2 °C30.3 °C80.52 mm
September13.7 °C26.9 °C80.52 mm
October7.2 °C20.5 °C86.11 mm
November1.6 °C12.8 °C102.11 mm
December-2.8 °C6.6 °C81.79 mm
Annual7.3 °C18.6 °C1160.27 mm

Climate Data for Dahlgren Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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