Thomasboro Illinois Climate Data

Monthly Average Climate Data for Thomasboro Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.2 °C0.7 °C57.91 mm
February-6.4 °C3.3 °C51.82 mm
March-1.3 °C9.7 °C69.85 mm
April4.5 °C17.3 °C102.87 mm
May11.2 °C23.5 °C112.78 mm
June16.3 °C28.2 °C118.62 mm
July17.8 °C29.6 °C107.7 mm
August16.5 °C28.8 °C86.11 mm
September12.4 °C26.2 °C81.03 mm
October5.8 °C19 °C85.34 mm
November-0.1 °C10.5 °C78.49 mm
December-5.1 °C3.4 °C60.2 mm
Annual5.3 °C16.7 °C1012.72 mm

Climate Data for Thomasboro 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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