Millerton Iowa Climate Data

Monthly Average Climate Data for Millerton Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.4 °C-0.2 °C27.18 mm
February-8.3 °C2.4 °C35.81 mm
March-2.3 °C9.6 °C55.88 mm
April3.7 °C16.2 °C101.09 mm
May10.2 °C21.7 °C137.92 mm
June15.8 °C26.9 °C136.4 mm
July18.2 °C29.4 °C115.06 mm
August16.7 °C28.4 °C111 mm
September11.7 °C24.8 °C96.27 mm
October4.9 °C17.8 °C74.17 mm
November-1.8 °C9.5 °C51.56 mm
December-7.3 °C2.7 °C37.34 mm
Annual4.3 °C15.8 °C979.68 mm

Climate Data for Millerton 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 5b : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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