Plainfield Iowa Climate Data

Monthly Average Climate Data for Plainfield Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January8.9 °F25.8 °F1.03 in.
February12.9 °F30.1 °F1.14 in.
March24.8 °F43.3 °F1.95 in.
April36.4 °F58.5 °F3.88 in.
May48.7 °F70.5 °F4.99 in.
June59.5 °F80.1 °F5.96 in.
July62.7 °F83.0 °F4.64 in.
August60.0 °F80.9 °F4.27 in.
September51.5 °F75.0 °F3.64 in.
October39.1 °F61.6 °F2.63 in.
November26.8 °F44.9 °F1.81 in.
December15.7 °F31.4 °F1.46 in.
Annual37.3 °F57.1 °F37.4 in.

Climate Data for Plainfield Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 1 - May 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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