Arthur Iowa Climate Data

Monthly Average Climate Data for Arthur Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January9.1 °F27.6 °F0.75 in.
February13.2 °F32.2 °F0.91 in.
March24.6 °F45.7 °F1.77 in.
April35.5 °F59.5 °F3.4 in.
May48.0 °F70.8 °F4.48 in.
June59.0 °F80.9 °F5.06 in.
July62.7 °F83.8 °F3.64 in.
August59.9 °F81.7 °F4.34 in.
September50.8 °F75.9 °F3.01 in.
October38.2 °F62.5 °F2.29 in.
November25.3 °F46.1 °F1.4 in.
December15.1 °F32.6 °F1.1 in.
Annual36.8 °F58.3 °F32.15 in.

Climate Data for Arthur 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 ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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