Yankton South Dakota Climate Data

Monthly Average Climate Data for Yankton South Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January9.7 °F29.0 °F0.55 in.
February13.3 °F34.0 °F0.74 in.
March24.1 °F46.0 °F1.43 in.
April35.5 °F58.8 °F2.91 in.
May47.8 °F70.4 °F4.12 in.
June59.0 °F81.0 °F4.17 in.
July63.5 °F85.6 °F2.9 in.
August61.0 °F83.3 °F3.2 in.
September51.7 °F76.2 °F2.84 in.
October38.3 °F62.5 °F2.57 in.
November25.2 °F46.5 °F1.08 in.
December14.5 °F33.2 °F0.81 in.
Annual37 °F58.9 °F27.32 in.

Climate Data for Yankton South Dakota

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 ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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