Sibley Iowa Climate Data

Monthly Average Climate Data for Sibley Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January6.2 °F24.0 °F0.74 in.
February10.4 °F28.6 °F0.85 in.
March21.8 °F41.1 °F1.59 in.
April33.7 °F56.6 °F3.16 in.
May46.6 °F69.0 °F4.05 in.
June58.0 °F79.3 °F4.83 in.
July61.5 °F82.6 °F3.44 in.
August58.9 °F80.2 °F3.43 in.
September49.9 °F73.9 °F3.32 in.
October36.8 °F60.1 °F2.38 in.
November23.5 °F42.9 °F1.42 in.
December12.1 °F28.8 °F1.0 in.
Annual35 °F55.6 °F30.21 in.

Climate Data for Sibley Iowa

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 11 - May 20
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 ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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