Osterdock Iowa Climate Data

Monthly Average Climate Data for Osterdock Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.2 °F27.1 °F1.27 in.
February13.9 °F31.8 °F1.24 in.
March25.9 °F44.5 °F1.98 in.
April37.3 °F58.6 °F3.69 in.
May49.0 °F70.4 °F4.58 in.
June59.4 °F79.9 °F5.78 in.
July63.0 °F83.4 °F4.79 in.
August60.7 °F81.6 °F3.75 in.
September52.0 °F74.8 °F3.76 in.
October40.0 °F61.7 °F2.84 in.
November28.2 °F45.7 °F2.09 in.
December17.3 °F32.9 °F1.63 in.
Annual38.1 °F57.7 °F37.4 in.

Climate Data for Osterdock Iowa

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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