Polk City Iowa Climate Data

Monthly Average Climate Data for Polk City Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.2 °F29.6 °F0.99 in.
February16.2 °F34.3 °F1.28 in.
March27.4 °F47.3 °F2.09 in.
April38.6 °F61.5 °F3.74 in.
May50.5 °F71.8 °F4.86 in.
June60.7 °F81.3 °F5.13 in.
July64.8 °F85.3 °F4.18 in.
August62.2 °F83.3 °F4.1 in.
September53.5 °F77.2 °F3.46 in.
October41.2 °F63.7 °F2.55 in.
November29.0 °F48.4 °F1.87 in.
December18.1 °F35.0 °F1.47 in.
Annual39.5 °F59.9 °F35.72 in.

Climate Data for Polk City 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 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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