Le Mars Iowa Climate Data

Monthly Average Climate Data for Le Mars Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January8.9 °F27.6 °F0.67 in.
February13.0 °F32.5 °F0.8 in.
March24.4 °F45.4 °F1.68 in.
April35.2 °F59.6 °F3.06 in.
May48.0 °F71.2 °F3.87 in.
June59.4 °F81.6 °F4.41 in.
July62.6 °F84.3 °F3.28 in.
August60.0 °F82.1 °F3.59 in.
September50.4 °F75.8 °F3.1 in.
October37.8 °F62.8 °F2.44 in.
November24.8 °F46.0 °F1.23 in.
December14.4 °F32.4 °F0.97 in.
Annual36.6 °F58.4 °F29.1 in.

Climate Data for Le Mars 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 ConditionsSevere Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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