Riverton Iowa Climate Data

Monthly Average Climate Data for Riverton Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.1 °C0.8 °C19.81 mm
February-7.8 °C3.7 °C27.94 mm
March-1.8 °C10.9 °C47.24 mm
April4.1 °C17.5 °C84.58 mm
May10.9 °C23.2 °C138.18 mm
June16.7 °C28.3 °C128.52 mm
July18.8 °C30.2 °C109.22 mm
August17.2 °C29.3 °C90.68 mm
September12 °C25.9 °C78.49 mm
October5.2 °C19.2 °C69.09 mm
November-1.8 °C10.3 °C42.42 mm
December-7.2 °C3.3 °C31.75 mm
Annual4.7 °C16.9 °C867.92 mm

Climate Data for Riverton Iowa

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 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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