Smithland Iowa Climate Data

Monthly Average Climate Data for Smithland Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-12.2 °C-1.6 °C17.53 mm
February-9.8 °C1.3 °C22.35 mm
March-3.7 °C8.7 °C42.16 mm
April2.2 °C16.2 °C84.58 mm
May9.1 °C22.3 °C113.03 mm
June15.2 °C27.8 °C120.4 mm
July17.2 °C29.6 °C95.76 mm
August15.7 °C28.3 °C105.41 mm
September10.7 °C24.9 °C76.45 mm
October3.6 °C17.8 °C56.64 mm
November-3.7 °C8.7 °C35.56 mm
December-9.2 °C1.2 °C27.94 mm
Annual2.9 °C15.4 °C797.81 mm

Climate Data for Smithland Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5a : -28.9°C to -26.1°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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