Le Mars Iowa Climate Data

Monthly Average Climate Data for Le Mars Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-12.8 °C-2.4 °C17.02 mm
February-10.6 °C0.3 °C20.32 mm
March-4.2 °C7.4 °C42.67 mm
April1.8 °C15.3 °C77.72 mm
May8.9 °C21.8 °C98.3 mm
June15.2 °C27.6 °C112.01 mm
July17 °C29.1 °C83.31 mm
August15.6 °C27.8 °C91.19 mm
September10.2 °C24.3 °C78.74 mm
October3.2 °C17.1 °C61.98 mm
November-4 °C7.8 °C31.24 mm
December-9.8 °C0.2 °C24.64 mm
Annual2.5 °C14.7 °C739.14 mm

Climate Data for Le Mars Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost150-180 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 ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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