Saybrook Illinois Climate Data

Monthly Average Climate Data for Saybrook Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.7 °C0.3 °C56.39 mm
February-6.9 °C2.8 °C48.01 mm
March-1.8 °C9.3 °C66.29 mm
April4.2 °C16.7 °C94.49 mm
May10.9 °C22.9 °C113.28 mm
June16.2 °C27.6 °C111.51 mm
July17.6 °C29 °C102.62 mm
August16.3 °C28.2 °C89.15 mm
September12 °C25.5 °C83.82 mm
October5.6 °C18.4 °C83.82 mm
November-0.4 °C10.1 °C69.34 mm
December-5.7 °C3.1 °C55.63 mm
Annual4.9 °C16.2 °C974.35 mm

Climate Data for Saybrook 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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