Hartsburg Illinois Climate Data

Monthly Average Climate Data for Hartsburg Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.1 °C1.2 °C55.63 mm
February-6.2 °C3.8 °C49.53 mm
March-0.9 °C10.4 °C66.04 mm
April4.9 °C17.7 °C95 mm
May11.4 °C23.5 °C112.78 mm
June16.7 °C28.3 °C113.03 mm
July18.3 °C29.9 °C104.9 mm
August17.1 °C29 °C90.68 mm
September12.6 °C26.3 °C83.06 mm
October6.1 °C19.2 °C80.01 mm
November0.1 °C10.8 °C71.37 mm
December-4.9 °C4 °C57.15 mm
Annual5.6 °C17 °C979.18 mm

Climate Data for Hartsburg Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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