St. John Kansas Climate Data

Monthly Average Climate Data for St. John Kansas

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-5.5 °C6.3 °C19.05 mm
February-4 °C8.7 °C24.89 mm
March1.1 °C14.3 °C48.51 mm
April6.1 °C19.4 °C59.94 mm
May12.1 °C24.7 °C114.05 mm
June17.7 °C30.7 °C97.79 mm
July20.1 °C33.1 °C90.17 mm
August19.1 °C32 °C90.68 mm
September14.7 °C28.1 °C45.72 mm
October7.4 °C21.4 °C56.39 mm
November0.7 °C13.6 °C28.19 mm
December-4.3 °C7 °C24.13 mm
Annual7.1 °C19.9 °C699.51 mm

Climate Data for St. John Kansas

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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