Riverside Iowa Climate Data

Monthly Average Climate Data for Riverside Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.2 °C-0.9 °C32.51 mm
February-8.2 °C1.6 °C37.85 mm
March-2.2 °C8.8 °C58.93 mm
April4 °C16.6 °C93.73 mm
May10.7 °C22.5 °C119.13 mm
June16.3 °C27.6 °C130.3 mm
July18.2 °C29.5 °C106.93 mm
August16.8 °C28.4 °C106.93 mm
September11.9 °C25.2 °C86.11 mm
October5.3 °C17.9 °C74.68 mm
November-1.2 °C9.3 °C55.37 mm
December-7.1 °C1.9 °C42.67 mm
Annual4.5 °C15.7 °C945.14 mm

Climate Data for Riverside Iowa

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 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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