Osceola Iowa Climate Data

Monthly Average Climate Data for Osceola Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.4 °C-0.4 °C23.62 mm
February-8.2 °C2.2 °C32.51 mm
March-2.3 °C9.3 °C56.64 mm
April3.8 °C16.3 °C100.84 mm
May10.3 °C21.9 °C139.7 mm
June16.1 °C27.2 °C125.48 mm
July18.4 °C29.6 °C108.2 mm
August16.9 °C28.6 °C109.73 mm
September11.8 °C24.6 °C97.54 mm
October5.2 °C17.8 °C69.34 mm
November-1.6 °C9.4 °C54.36 mm
December-7.3 °C2.4 °C38.35 mm
Annual4.4 °C15.7 °C956.31 mm

Climate Data for Osceola Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
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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