Osceola Iowa Climate Data

Monthly Average Climate Data for Osceola Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.3 °F31.3 °F0.93 in.
February17.2 °F36.0 °F1.28 in.
March27.8 °F48.8 °F2.23 in.
April38.8 °F61.4 °F3.97 in.
May50.6 °F71.4 °F5.5 in.
June60.9 °F81.0 °F4.94 in.
July65.1 °F85.2 °F4.26 in.
August62.4 °F83.5 °F4.32 in.
September53.2 °F76.2 °F3.84 in.
October41.3 °F64.1 °F2.73 in.
November29.2 °F49.0 °F2.14 in.
December18.8 °F36.3 °F1.51 in.
Annual39.9 °F60.4 °F37.65 in.

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 : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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