Springfield Illinois Climate Data

Monthly Average Climate Data for Springfield Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.4 °C1.8 °C55.12 mm
February-5.6 °C4.4 °C49.53 mm
March-0.5 °C10.9 °C70.36 mm
April5.4 °C17.9 °C101.35 mm
May11.8 °C23.6 °C119.38 mm
June16.9 °C28.3 °C118.36 mm
July18.6 °C30 °C91.44 mm
August17.4 °C29.2 °C80.01 mm
September12.8 °C26.3 °C81.79 mm
October6.4 °C19.4 °C77.98 mm
November0.4 °C11.2 °C74.93 mm
December-4.4 °C4.6 °C56.9 mm
Annual6 °C17.3 °C977.15 mm

Climate Data for Springfield 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 ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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