Sioux Falls South Dakota Climate Data

Monthly Average Climate Data for Sioux Falls South Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January6.5 °F25.0 °F0.71 in.
February10.8 °F29.8 °F0.83 in.
March22.3 °F42.4 °F1.6 in.
April34.0 °F56.7 °F2.95 in.
May46.9 °F68.9 °F3.68 in.
June58.2 °F79.2 °F4.56 in.
July62.0 °F83.6 °F3.29 in.
August59.3 °F81.1 °F3.29 in.
September50.2 °F74.1 °F2.85 in.
October36.8 °F60.1 °F2.33 in.
November23.3 °F43.5 °F1.21 in.
December12.1 °F29.6 °F0.87 in.
Annual35.2 °F56.2 °F28.17 in.

Climate Data for Sioux Falls South Dakota

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°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