South Sioux City Nebraska Climate Data

Monthly Average Climate Data for South Sioux City Nebraska

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-12.2 °C-1.4 °C16 mm
February-9.8 °C1.4 °C20.32 mm
March-3.7 °C8.7 °C40.64 mm
April2.4 °C16.1 °C81.03 mm
May9.4 °C22.3 °C103.38 mm
June15.5 °C27.9 °C114.55 mm
July17.6 °C29.7 °C84.84 mm
August16.2 °C28.5 °C88.9 mm
September10.8 °C25 °C75.69 mm
October3.7 °C17.7 °C58.67 mm
November-3.6 °C8.7 °C35.05 mm
December-9.3 °C1.2 °C24.64 mm
Annual3.1 °C15.5 °C743.71 mm

Climate Data for South Sioux City Nebraska

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -28.9°C to -26.1°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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