Tonica Illinois Climate Data

Monthly Average Climate Data for Tonica Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.2 °C-0.4 °C46.23 mm
February-7.2 °C2.1 °C44.45 mm
March-1.8 °C9 °C61.47 mm
April4 °C16.4 °C88.9 mm
May10.6 °C22.7 °C115.82 mm
June15.9 °C27.6 °C109.22 mm
July17.9 °C29.2 °C97.28 mm
August16.7 °C28.2 °C92.96 mm
September12.2 °C25.2 °C85.34 mm
October5.8 °C18.2 °C75.44 mm
November-0.4 °C9.7 °C63.5 mm
December-5.9 °C2.6 °C50.55 mm
Annual4.9 °C15.9 °C931.16 mm

Climate Data for Tonica Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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