Spillville Iowa Climate Data

Monthly Average Climate Data for Spillville Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-13.6 °C-3.9 °C26.42 mm
February-11.6 °C-1.6 °C27.94 mm
March-4.8 °C5.7 °C49.78 mm
April1.4 °C14.1 °C99.57 mm
May8.1 °C20.6 °C118.62 mm
June13.9 °C25.9 °C153.67 mm
July15.8 °C27.7 °C118.36 mm
August14.4 °C26.6 °C108.2 mm
September9.8 °C23.1 °C95.5 mm
October3.1 °C15.8 °C70.87 mm
November-3.6 °C6.6 °C46.74 mm
December-9.7 °C-0.8 °C36.32 mm
Annual1.9 °C13.3 °C951.99 mm

Climate Data for Spillville Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 4b : -31.7°C to -28.9°C
Plant Hardiness Zone - 2012Zone 4b : -31.7°C to -28.9°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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