Spillville Iowa Climate Data

Monthly Average Climate Data for Spillville Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.6 °F24.9 °F1.04 in.
February11.2 °F29.2 °F1.1 in.
March23.3 °F42.2 °F1.96 in.
April34.6 °F57.3 °F3.92 in.
May46.6 °F69.1 °F4.67 in.
June57.1 °F78.6 °F6.05 in.
July60.5 °F81.9 °F4.66 in.
August58.0 °F79.9 °F4.26 in.
September49.6 °F73.6 °F3.76 in.
October37.5 °F60.4 °F2.79 in.
November25.6 °F43.9 °F1.84 in.
December14.6 °F30.6 °F1.43 in.
Annual35.5 °F56 °F37.48 in.

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 : -25°F to -20°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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