South Sioux City Nebraska Climate Data

Monthly Average Climate Data for South Sioux City Nebraska

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.1 °F29.5 °F0.63 in.
February14.3 °F34.5 °F0.8 in.
March25.4 °F47.7 °F1.6 in.
April36.4 °F61.0 °F3.19 in.
May49.0 °F72.1 °F4.07 in.
June59.9 °F82.2 °F4.51 in.
July63.6 °F85.5 °F3.34 in.
August61.1 °F83.3 °F3.5 in.
September51.5 °F77.0 °F2.98 in.
October38.6 °F63.9 °F2.31 in.
November25.5 °F47.6 °F1.38 in.
December15.3 °F34.1 °F0.97 in.
Annual37.6 °F59.9 °F29.28 in.

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 : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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