Wentzville Missouri Climate Data

Monthly Average Climate Data for Wentzville Missouri

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-5.6 °C4.2 °C62.48 mm
February-3.8 °C7.3 °C58.93 mm
March1.1 °C13.1 °C84.84 mm
April7.1 °C19.7 °C116.84 mm
May12.9 °C24.4 °C130.56 mm
June18.1 °C29.1 °C117.35 mm
July20.1 °C31.2 °C102.87 mm
August18.9 °C30.6 °C91.69 mm
September14.3 °C26.8 °C88.39 mm
October7.7 °C20.4 °C85.6 mm
November1.8 °C12.9 °C86.87 mm
December-3.1 °C6.6 °C67.31 mm
Annual7.5 °C18.9 °C1093.73 mm

Climate Data for Wentzville Missouri

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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