Naplate Illinois Climate Data

Monthly Average Climate Data for Naplate Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.1 °C-0.2 °C49.53 mm
February-7.2 °C2.3 °C47.5 mm
March-1.9 °C9.2 °C62.99 mm
April4.1 °C16.4 °C89.15 mm
May10.3 °C22.5 °C119.38 mm
June15.7 °C27.4 °C115.06 mm
July17.8 °C29.1 °C97.28 mm
August16.7 °C28.1 °C98.04 mm
September12.4 °C25.1 °C83.57 mm
October5.9 °C18.2 °C78.23 mm
November-0.1 °C9.9 °C67.82 mm
December-5.8 °C2.7 °C53.34 mm
Annual4.9 °C15.9 °C961.89 mm

Climate Data for Naplate 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 6a : -23.3°C to -20.6°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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