Ireton Iowa Climate Data

Monthly Average Climate Data for Ireton Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.9 °F26.5 °F0.67 in.
February12.3 °F31.6 °F0.8 in.
March23.7 °F44.4 °F1.65 in.
April34.9 °F58.8 °F3.08 in.
May47.9 °F71.1 °F4.06 in.
June58.8 °F80.9 °F4.49 in.
July62.2 °F84.0 °F3.3 in.
August59.8 °F81.8 °F3.36 in.
September50.7 °F75.5 °F3.1 in.
October38.0 °F62.1 °F2.45 in.
November24.7 °F45.1 °F1.34 in.
December13.6 °F31.1 °F0.96 in.
Annual36.2 °F57.7 °F29.26 in.

Climate Data for Ireton Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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