Webster Groves Missouri Climate Data

Monthly Average Climate Data for Webster Groves Missouri

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.6 °C4.6 °C70.36 mm
February-2.7 °C7.7 °C63.25 mm
March2.2 °C13.3 °C91.69 mm
April8.2 °C20 °C119.63 mm
May14.1 °C24.9 °C134.87 mm
June19.1 °C29.7 °C117.86 mm
July21.2 °C31.7 °C105.41 mm
August20.2 °C30.9 °C96.52 mm
September15.6 °C27.3 °C85.85 mm
October9.2 °C20.8 °C90.42 mm
November2.8 °C13 °C94.23 mm
December-1.9 °C7.1 °C70.61 mm
Annual8.6 °C19.3 °C1140.7 mm

Climate Data for Webster Groves Missouri

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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